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Dawns A New Era: Regenerative Medicine For Degenerative Disease

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Could breakthrough innovation in ‘Regenerative Medicine’ significantly reduce the need of expensive lifelong medications, or even make the use of some important medical devices less relevant, or even help avoiding expensive and risky surgical interventions? The common answer to these critical questions is now getting clearer, in tandem with the rapid progress of the science of ‘Regenerative Medicine.’

On June 13, 2017, Nature Biomedical Engineering published an interesting an article titled, “3D-printed vascular networks direct therapeutic angiogenesis in ischemia.” In simple words, these 3D-Printed patches are going to usher in a highly innovative way to treat ischemic diseases, in the future. As the researchers highlighted, arterial bypass grafts are currently considered as the gold standard for the treatment of end-stage ischemic disease, though many patients are unable to tolerate the cardiovascular stress of arterial surgery. The researchers found that implantation of 3D-printed grafts containing endothelial-cell-lined lumens, induces spontaneous and geometrically guided generation of collateral circulation in ischemic settings.

In rodent models of hind limb ischemia and myocardial infarction, these scientists successfully demonstrated that the vascular patches rescue perfusion of distal tissues, preventing capillary loss, muscle atrophy and loss of function.

In this article, I shall deliberate on the importance of this discovery, and its overall future implications on a broader perspective.

Regenerative medicine:

Here comes the basic question – What is ‘Regenerative Medicine’?

It is defined as a highly innovative branch of medicine that develops implementable methods to regrow, repair or replace damaged or diseased cells, organs or tissues. According to RegerativeMedicine.net following are illustrations of some conditions or diseases that regenerative medicine has the potential to cure, and what their current state of treatment looks like in in the American perspective:

  • Heart valves- 250,000 patients receive heart valves, at a cost of US$27 billion annually
  • Heart disease and Stroke- 950,00 people die of heart disease or stroke, at a cost of US$ 351 billion annually
  • Diabetes- 17 million patients have diabetes, at a cost of US$ 132 billion annually

I discussed in this blog, the subject of ‘3D Printing in health care’ on January 11, 2016. Hence, won’t dwell on that subject here

Ischemia, and the relevance of the above discovery:

Ischemia, as many would know, is a condition that restricts adequate flow of blood in some parts of our body, which over a period, may narrow, harden or even block the important blood vessels, much often resulting in stroke, heart attack or other related life-threatening vascular disorders.

Currently, ischemic heart conditions are usually treated either with blood thinning drugs, or blood vessel relaxants. In more serious stages of this condition, doctors prefer angioplasty or other surgical interventions, such as coronary artery bypass.

In this broad perspective, the relevance of the above discovery in addressing various debilitating or life- threatening ischemic conditions, is profound. Its novelty lies in the ability of the scientists making a 3D-printed patch that can be infused with cells to help grow healthy new blood vessels.

An emerging medical space:

The science of ‘Regenerative Medicine’ is increasingly being considered as an emerging medical space aimed at the treatment of those diseases that are usually classified as degenerative, incurable and irreversible. As it appears today, this science has the potential to unfold a new paradigm in this space, where patients can expect cure for many serious ailments, such as, spinal injuries, heart disease, Parkinson’s, Alzheimer’s disease and even diabetes, besides many others.

One more recent pursuit in this much uncharted frontier was reported in the British news daily – ‘The Telegraph’ on February 21, 2017, revealing the outcome of a path-breaking medical study for freezing the progression of a crippling ailment called Multiple Sclerosis (MS). This research followed a unique Stem Cell (SC) transplantation process, and is regarded as the largest long-term follow-up of SC transplantation treatment study of MS in regenerative medicine.

This study, spearheaded by Imperial College London, established that 46 per cent of patients who underwent the treatment did not suffer a worsening of their condition for five years. The process works by destroying the immune cells responsible for attacking the nervous system. This is indeed a very significant development in the space of medical research.

The treatment, called autologous hematopoietic stem cell transplantation (AHSCT), was given to patients with advanced forms of MS who had failed to respond to other medications. However, the researchers noted that the nature of the treatment, which involves aggressive chemotherapy, carried “significant risks”.

As many would know, MS is caused by the immune system malfunctioning and mistakenly attacking nerve cells in the brain and spinal cord, leading to problems with movement, vision, balance and speech. It’s a lifelong condition and often causes serious disability, with no cure still in sight. The disease is most commonly diagnosed in people in their 20s and 30s, although it can develop at any age.

A potential game changer:

According to California Institute for Regenerative Medicine (CIRM), this procedure has a game changing potential for successful use:

  • To replace neurons damaged by spinal cord injury, stroke, Alzheimer’s disease, Parkinson’s disease or other neurological problems
  • To produce insulin that could treat people with diabetes, and heart muscle cells that could repair damage after a heart attack, or
  • To replace virtually any tissue or organ that is injured or diseased

Research on “Regenerative Medicine’ signals a new hope:

Following are examples of just a few more promising developments, indicating that research in ‘Regenerative Medicine’ is taking rapid strides, signaling a new hope:

- A cure for Type 1 diabetes:

According to an international report on October 9, 2014, for the first time after 23 years of research, Harvard University has been able to manufacture millions of beta cells required for transplantation. It could mean a cure for diabetes, and the end of daily insulin injections for patients living with Type 1 diabetes. Although, just around 10 per cent of all diabetes is Type 1, it is the most common type of childhood diabetes.

The report indicated, the stem cell-derived beta cells are presently undergoing trials in animal models, including non-human primates, where they are still producing insulin after several months.

Another report of April 2014 indicates that for the first time, scientists have successfully replaced the damaged DNA of a type 1 diabetes sufferer with the healthy genetic material of an infant donor. When these cells are injected back into the diabetic patient, it is expected that they will begin to produce insulin on their own.

- Restoring vision in macular degeneration:

Yet another study published in ‘The Lancet’ in October 2014 stated that scientists in the United States have announced that single transplant of stem cells has helped restore the sight of patients suffering from incurable forms of blindness due to Age-related Macular Degeneration (AMD). Currently no effective treatments exist for this eye disorder, which can cause complete blindness due to the loss of light-receiving photoreceptor cells in the retina.

To recreate a type of cell in the retina that supports those photoreceptors, the new treatment uses stem cells derived from embryos that are only a few days old and have the ability to develop into any kind of tissue in the body. However, the transplants have proved controversial because they use stem cells derived from spare human embryos left over from IVF treatment.

- A cure for heart failure:

One more international report of May 01, 2014 states, by injecting human stem cells into the organs of macaque monkeys, scientists have been able to regenerate their damaged hearts by up to 40 per cent in just a few weeks. Thus, it appears now that a cure for heart failure could be just a few years away and would mean that even people who are “bed-bound” with heart failure could be “up and about” again within a few weeks.

As on date, the heart muscle cannot be repaired, making people with severe heart failure necessarily wait for a heart transplant, provided the patients are willing, and can afford so.

Conclusion:

There is a host of diseases, including several chronic ailments, such as diabetes, heart conditions, rheumatoid arthritis, or some types of cancer, which can’t be reversed, however, could be managed with a lifelong treatment. For most of these diseases, ‘Regenerative Medicine’ has the potential to be a game changer by transforming many lives.

Moreover, ‘Regenerative Medicine’ is expected not just to bring down the cost of health care and the disease burden significantly, but would also help increasing the economic productivity of a nation considerably.

Currently, medical research of the highest order in this area, has mostly been conducted by various academia of global repute, along with a few in the industry. It should soon involve, besides patients, several industries, including pharmaceuticals and biotech sectors, in a big way.

Nevertheless, this emerging trend sends a clear signal that to treat various chronic, incurable, irreversible and seriously debilitating degenerative diseases ‘Regenerative Medicine’ is now poised to take a giant leap in the health care space.  In that process, it would possibly help healing various ailments in a more meaningful, providing a cure for many chronic diseases that was a badly missing piece in the medical science, so far.

Thus, ‘Regenerative Medicines’ to treat many ‘Degenerative Diseases’ signal a great potential to give an altogether new shape and dimension to the future of global health care. It is also expected to ensure lesser lifelong usage of expensive drugs, setting a new normal to bring back the patients’ lives back to the pre-disease state.

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

 

 

Stem Cell Therapy in India: A Potential Game Changer in Disease Treatment

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Stem Cells (SC) offer an incredible potential to instill a new lease of life virtually to any organ of the human body, bringing them back to the pre-disease state through its own biological repair mechanism. Intensive research initiatives are on across the world to harness this unique possibility that will be able to successfully address a plethora of serious and chronic ailments for mankind. The good news is, the global scientific community is taking rapid strides in understanding the complex stem cell biology to give shape to a game changing medical treatment blue print for tomorrow.

Capturing one such pursuit, on February 21, 2017, well-reputed British news daily – ‘The Telegraph’, reported the outcome of a path-breaking medical study for freezing the progression of yet another complex and crippling ailment – Multiple Sclerosis (MS). This research followed a unique SC transplantation process. Intriguingly, both such diseases and the treatment are not generally much talked about, particularly in India. If done, it would increase public awareness and help many patients fetch greater benefits from the available and approved SC therapy in the country. Probably, considering the unfathomable scope of the body’s own repairing toolbox with SC, Prime Minister Narendra Modi reportedly called on Indian biologists to motivate school children for pursuing a career in stem cell research.

Let me now go back for a moment to Multiple Sclerosis (MS) as I am aware of this this disease condition rather closely. One of our close family friends who was a very senior official in one of the top multinational corporations of the world, had to give up his job prematurely being a victim to this serious illness. In that sense, this particular news item rekindles a new hope for many to look for a better quality of life while managing many other diseases of such kind, all over the world, including India.

‘The Telegraph’ reported: in so far, the largest long-term follow-up of SC transplantation treatment study of MS, which was spearheaded by Imperial College London, established that 46 per cent of patients who underwent this treatment did not suffer a worsening of their condition for five years. The treatment works by destroying the immune cells responsible for attacking the nervous system. This is indeed a very significant development in the space of medical research.

This new treatment, called autologous hematopoietic stem cell transplantation (AHSCT), was given to patients with advanced forms of MS who had failed to respond to other medications. However, the researchers noted that the nature of the treatment, which involves aggressive chemotherapy, carried “significant risks”.

It’s worth recapitulating here that MS is caused by the immune system malfunctioning and mistakenly attacking nerve cells in the brain and spinal cord, leading to problems with movement, vision, balance and speech. It’s a lifelong condition and often causes serious disability, with no cure still in sight. The disease is most commonly diagnosed in people in their 20s and 30s, although it can develop at any age.

A new hope with a game changing potential:

The above study of SC transplantation conducted by Imperial College London in MS, is just a recent example, among scores of major steps being taken in this frontier of medical science in preparation of a decisive battle against many more life-threatening and serious debilitating diseases.

No doubt that various treatments involving stem cells are generally considered a novel and rapidly advancing medical technology. However, in a small number of developed countries, such as the United States (US), a number medical procedures with stem cells are being practiced since around last three decades. Bone marrow transplant is the most widely used stem-cell therapy in this area, which was first performed in 1968.

According to California Institute for Regenerative Medicine (CIRM) and various other medical literature, SC treatment has the game changing potential for successful use to:

  • Replace neurons damaged by spinal cord injury, stroke, Alzheimer’s disease, Parkinson’s disease or other neurological problems
  • Produce insulin that could treat people with diabetes and heart muscle cells that could repair damage after a heart attack, or
  • Replace virtually any tissue or organ that is injured or diseased

Thus, stem cells offer limitless possibilities, such as tissue growth of vital organs like liver, pancreas. Today there are many diseases for which no effective treatment still exists, besides giving symptomatic relief, such as Multiple Sclerosis, Parkinson’s disease, Alzheimer’s, severe burn, spinal cord injury. There is a host of other diseases, including several chronic ailments, such as diabetes, heart ailments, rheumatoid arthritis, or some types of cancer, which can’t just be reversed, however, could be managed with a lifelong treatment. For most of these diseases, and several others involving tissue degeneration, SC therapy has the potential to be a huge life and a game changer. It may involve, besides patients, several industries, including pharmaceuticals and biotech sectors.

Major stem cell sources and some key milestones:

Medical scientists and researchers have conclusively established that stem cells are the master cells of any human body. These are undifferentiated cells of the same lineage, retaining the ability to divide throughout life and grow into any one of the body’s more than 200 cell types. Some of the major sources of stem cells in the human body are bone marrow, cord blood, embryonic cells, dental pulp and menstrual blood.

As captured by ‘ExploreStemCells’ of UK, some key events in stem cell research include:

  • 1978: Stem cells were discovered in human cord blood
  • 1981: First in vitro stem cell line developed from mice
  • 1988: Embryonic stem cell lines created from a hamster
  • 1995: First embryonic stem cell line derived from a primate
  • 1997: Cloned lamb from stem cells
  • 1997: Leukemia origin found as hematopoietic stem cell, indicating possible proof of cancer stem cells
  • 1998: University of Wisconsin isolated cells from the inner cell mass of early embryos and developed the first embryonic stem cell lines.
  • 1998: Johns Hopkins University derived germ cells from cells in foetal gonad tissue; pluripotent stem cell lines were developed from both sources.
  • 1999 and 2000: Scientists discovered that manipulating adult mouse tissues could produce different cell types. This meant that cells from bone marrow could produce nerve or liver cells and cells in the brain could also yield other cell types.

All these discoveries were exciting for rapid progress in the field of stem cell research, along with the promise of greater scientific control over stem cell differentiation and proliferation. Currently, many more research studies are underway in globally acclaimed institutions and other boutique laboratories exploring the possibility of wide scale use of SC therapy, even in the treatment of several chronic diseases, including diabetes and heart disorders.

A controversy:

The controversy related to SC research mainly involves Embryonic Stem Cells (ESC) and raises several difficult questions for a speedy resolution. As articulated by the ‘Genetic Science Learning Centre’ of the University of Utah, these are mainly:

  • Does life begin at fertilization, in the womb, or at birth?
  • Is a human embryo equivalent to a human child?
  • Does a human embryo have any rights?
  • Can destruction of a single embryo be justified to provide a cure for a countless number of patients?
  • Since ESC can grow indefinitely in a dish and can, in theory, still grow into a human being, is the embryo really destroyed?

However, in 2006 scientists learned how to stimulate a patient’s own cells to behave like embryonic stem cells. These cells are reducing the need for human embryos in research and revealing exciting new possibilities for stem cell therapies, according to this Centre.

Stem cell research in India:

India has pursued SC research since over a couple decades reasonably supported by the Government, especially the Department of Biotechnology (DBT), besides several remarkable initiatives from the private sector. Ethical guidelines in this regard are also in place, so also are the National Guidelines for Stem Cell Research in India. These guidelines are aimed at obtaining licenses from the Drug Controller General of India (DCGI).

Further, in a major move to regulate and oversee the activities by streamlining SC research in the country, the Government has also set up an Institutional Committee for Stem Cell Research and Therapy (IC-SCRT) and the National Apex Committee for Stem Cell Research and Therapy (NAC-SCRT). This necessitates the researchers on human stem cells, both institutions and the individuals, to be registered with NAC-SCRT through IC-SCRT. To ensure that the concerned companies and individuals follow the National Guidelines, these committees will review, approve and monitor each research project in this area. It now calls for even greater focus from all other stakeholders to help accelerate growth of this niche segment of medical science for patients’ benefits.

SC transplantations using umbilical cord blood and bone marrow for treating neurological, hematological, hepatic and cardiac disorders are being pursued by some well-known medical institutions, such as, AIIMS, PGI Chandigarh, CMC Vellore, AFMC Pune, Manipal Hospital Bangalore. For example, AIIMS, reportedly, undertook a major multi-center trial to look at the role of stem cells in repairing tissue damaged during acute heart attacks, where other treatment process, including a cardiac bypass surgery fails to adequately improve the heart function. Similarly, Shankar Netralaya in Chennai has successfully carried out limbal stem cell transplantations for restoring vision to several patients.

That said, this is a cost intensive area of research, which involves expensive equipment, reagents and other consumables. Moreover, ensuring continuous training for SC researchers and clinicians also poses a major problem. Greater international collaboration in this area, and increasing number of Public-Private-Partnership (PPP) could accelerate the progress of India in this hugely promising area of medical science, reaping a rich harvest for a large patient population of the country.

Stem cell banking:

SC banking is a fast-developing area in this field, especially designed for SC therapy. As not many patients are not currently as much aware or interested in SC therapy as they ought to, it may not appear as an immediate requirement for many. However, an encouraging trend is fast catching up, especially within some enlightened persons, to have in a bank a large reserve of their own or their baby’s stem cells that would be available for any medical emergencies or more effective treatment options, in the future.

It assumes increasing importance because, as we age, illness and the natural process of aging could reduce the number of stem cells available to regenerate organs, muscles and bone. At that time, while treating a serious illness or a grave injury, a person may have fewer adult stem cells that have the collective power to make an effective healing response to SC therapy.

In that context, SC banking provides a great opportunity to store, multiply and utilize a newborn’s or even an adult person’s younger and healthy stem cells for SC therapy during any medical emergency, such as a serious accident or a crippling illness, at a later stage in life.

There are broadly the following two types of SC banking facilities are now available in India:

A. Cord blood stem cell banking:

This is type of SC banking is the process of collecting, processing, cryogenically freezing and preserving the ‘Cord blood’ that remains in the vein of the umbilical cord and placenta at the time of birth, for potential future medical use during SC therapy. Stems cells extracted from the umbilical cord blood have been shown to be more advantageous than those extracted from other sources such as bone marrow. These banked stem cells are considered as a perfect match for the lifetime of the donor baby, and for other family members, as well. This is significant as there exists a greater chance for success in a stem cell transplant between siblings than with unrelated donors and recipients.

B. Adult stem cell banking:

Some state-of-the-art adult stem cell banking services are either already available or in the process of coming up in many places of the world, including India. As an individual’s fat (adipose tissue) is an important source of adult stem cells, with the application of a high precision medical technology of separating, multiplying, and storing adult adipose tissue-derived mesenchymal stem cells for autologous use by physicians, ‘Adult stem cells are stored in these banks.

The good news is, increasing awareness in this area has now started prompting many parents, and also some adults to bank or store their own SC and the baby’s cord blood rich with a specific types of stem cells, that can be utilized, at a later date, in a variety of SC therapy while treating many life-threatening and debilitating diseases, if required.

Types of stem cell therapy:

There are two major types of SC therapies, and both are available in India:

  • Autologous stem cell therapy: uses the adult patient’s own stem cells obtained from the blood, bone marrow.
  • Allogenic stem cell therapy: uses donated stem cells, but faces chances of donor stem cell rejection.

As articulated in the revised stem cell guidelines, stem cells can’t be offered to patients in India as ‘therapy’ unless these are proven effective and safe supported by unequivocal clinical trial data and approved by the DCGI. Otherwise, these can be used only in ‘clinical trials’ as will be approved by the DCGI. The only exception to this is the use of haematopoietic (blood forming) stem cells for treating blood disorders, which is considered as ‘a proven therapy,’ according to available reports.

The Market – Global and India:

September 14, 2015 issue of ‘The Pharma Letter’ stated based on a recent report that the global stem cells market was valued at US$ 26.23 billion in 2013, and is estimated to be worth US$ 119.52 by 2019, registering at a Compounded Annual Growth Rate (CAGR) of 24.2 percent. Whereas, in India, the stem cell market is expected to be around US$ 600 million by 2017. Another report, titled ‘India Stem Cells Market Forecast & Opportunities, 2020’ of ‘Pharmaion’, states that stem cells market in India is expected to grow at a CAGR of over 28 percent during 2015 – 2020.

In terms of services offered, stem cells market in India has been segmented into two main categories, namely SC banking, and SC research. The latter dominated the market in 2014, and is likely to continue its dominance through 2020. Adult stem cells accounted for the majority share in India’s SC market in 2014, as a lot of research being carried out using adult stem cells, besides growing adult stem cell banking and other associated applications in therapeutics.

The major growth drivers for SC market are: increasing patient awareness, an increase in the approval for clinical trials in stem cell research, growing demand for stem cell banking services,

Government support, rising investments in research, and ascending trend of development for regenerative treatment to meet unmet medical needs.

The first stem cell based product approval in India:

On May 30, 2016, a Press Release of ‘Stempeutics Research’ of Bengaluru announced that for the first time in India, DCGI has granted limited approval for manufacturing and marketing of its allogeneic cell therapy product named Stempeucel® for the treatment of Buerger’s Disease – a rare and severe disease condition affecting the blood vessels of the legs, which finally may require amputation. Stempeucel® treatment is designed to enhance the body’s limited capability to restore blood flow in ischemic tissue by reducing inflammation and improving neovascularization. The prevalence of Buerger’s Disease is estimated to be 1,000,000 in India and two per 10,000 persons in the EU and US, as the release stated. Stempeutics Research’ is a company of Manipal Education & Medical Group and a Joint Venture with Cipla Group.

Conclusion:

Research on stem cells, across the world, is taking rapid strides. It has already demonstrated its healing power in changing many human lives either by significantly stalling the progression of several serious ailments, such as Multiple Sclerosis (MS), or reversing the disease conditions, such as serious damage to the heart caused by massive myocardial infarction.

An increasing number of stem cell banks coupled with growing public and private investments in stem cell research, positive narratives are getting scripted for this space in India. With rapidly growing middle class population and comparatively less stringent rules and regulations, India is emerging as a perfect destination for many more global and local stem cell banking companies. Consequently, the stem cell market in the country is expected to witness robust growth in the coming years.

However, only future research on stem cells will be able to unravel whether an Alzheimer’s victim will get back the stolen memory; a cancer patient won’t have to mentally prepare to die of cancer anytime soon, besides spending a fortune towards cancer therapy; an insulin dependent diabetic will no longer require insulin; an individual with damaged heart won’t have to continue with lifelong medication, and it goes on and on.

Nevertheless, if it does… and God willing – it will, ‘Stem Cell Therapy’ would not just be a life changer for many patients, it will be a game changer too for several others, including the pharma, biotech companies and many more within the healthcare sector. If any skeptic still asks, will it really happen? My counter question, in response, will be: Why not?… Why the hell not?

By: Tapan J. Ray  

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

 

Mental Health Problem: A Growing Concern In The Healthcare Space Of India

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A thud!

Something fell from high above!

In no time, a bright young life of just a 32-year-old highly accomplished professional – a widely admired soul, vanished in the thin year, for good, mostly unnoticed in the quiet neighborhood, initially.

The news was more than a shock to my family. It engulfed me by the fire of impotent rage against this cruel play of destiny, where nothing can be undone, just nothing!

What prompted this so bright, successful, hugely promising and an ever-helpful-to-all guy doing what he did? No one could ferret out the answer, just yet, and possibly would never be.

Medical literatures have now established a close relationship between depression and its possible lethal outcome – suicide. Using literature data, one can estimate that 60 to 70 percent of the subjects attempting suicide were suffering from depression of various kinds. Was this young man too silently suffering from this undiagnosed and untreated mental illness?

In this article, I shall dwell on this important aspect of overall health care in India.

Depression ranks 4th in the 10 leading causes of the global burden of disease:

The World Health Organization (W.H.O) underlines: “Major depression is now the leading cause of disability globally and ranks fourth in the ten leading causes of the global burden of disease. If projections are correct, within the next 20 years, depression will have the dubious distinction of becoming the second cause of the global disease burden. Globally, 70 million people suffer from alcohol dependence. About 50 million have epilepsy; another 24 million have schizophrenia. A million people commit suicide every year. Between ten and 20 million people attempt it.”

A recent study:

Currently in India, millions of people with mental illnesses continue to remain untreated. This is vindicated by a chain of recent research studies titled, “China-India Mental Health Alliance Series”, published in ‘The Lancet’ on May 18, 2016.

The studies highlighted that: “China and India, which together contain 37 percent of the world’s population, are both undergoing rapid social changes. Because mental disorders account for a high proportion of morbidity, detailed knowledge of the mental health status of the populations in these two countries, and the evidence-base regarding the treatment of those disorders, are of paramount concern.”

“In China, mental, neurological and substance use disorders accounted for 7 percent of all (years of healthy life of the whole population) in 1990, rising to 11 percent by 2013. Similarly, in India, the proportion of all burden explained by mental, neurological, and substance use disorders rose from 3 percent in 1990 to 6 percent in 2013,” the researchers highlighted.

Greater concern in India:

In 2013, 36 million years of healthy life were lost to mental illness in China, and 31 million in India. The new research estimates that by 2025, though 36.9m years of healthy life will be lost to mental illness in China (10 percent increase), it will be 38.1m in India (23 percent increase). Anxiety and depression are the most common mental health problems among working age adults between 20 and 69 years.

Similarly, dementia is emerging as a growing mental health issue for both countries. However, from 2015 to 2025, it is estimated that the number of healthy years lost due to dementia will increase by 82 percent in India against 56 percent in China.

Interestingly, in August 2016, replying to a debate on the ‘Mental Health Care Bill’ in the Parliament, the Union Health Minister Mr. J. P. Nadda said, around 6-7 per cent of Indian population suffered from mental illnesses, while 1-2 per cent suffer from acute mental disease.

This means, over 70 million people are affected by mental illness in India, which has a close association with the rate of suicides, cardiovascular disorders, and loss of a significant number of productive days. It is estimated that around 50 percent of people with severe mental disease and around 90 percent of those with less severe symptoms, remain untreated in the country.

Depression, reportedly, the most prevalent form of mental illness that affects almost 3 to 5 percent of urban population living in cities, such as, Mumbai or Delhi. Around 30 percent of them are severely neurotic.

Alzheimer’s disease was reported to be the most common of severe disorders (54 percent) followed by vascular dementia (39 percent).

Another Government statistics indicate that 20 percent of Indians reportedly need counselling at some point of their lives. One per cent of the population suffers from serious mental health disorders, while 5-10 percent of Indians suffer from moderate disorders.

Another recent study:

Another recent report published in ‘The Lancet Psychiatry’ on 12 August 2016, captured the following details for India, in this area:

  • Very few population-representative data were found for mental disorders, with an average coverage of just 1 percent of the country’s population.
  • Major depressive disorder, anxiety disorder, and alcohol dependence were the most common mental, neurological, and substance abuse disorders, for men.
  • For women, anxiety disorder, major depressive disorder, and dysthymia were most common.
  • Human and financial resources for mental health are grossly inadequate with less than 1 percent of the national health care budget allocated to mental health in India.
  • Improvement of coverage will need to address both supply-side barriers and demand-side barriers related to stigma and varying explanatory models of mental disorders.

An associate professor of psychiatry at New Delhi’s All India Institute of Medical Sciences (AIIMS), reportedly said, there is just one psychiatrist for every 400,000 Indians. Apparently, he also said that there are only about 4,000 psychiatrists, 1,000 psychologists and 3,000 social workers in the entire country of over 1.2 billion people. Only 1,022 college seats for mental health professionals are set aside in India.

Or, in other words, a huge dearth of trained mental health professionals, coupled with low public investments, and fueled by high associated stigma, continue to compel many Indian populations lose many years of their lives to the illness.

Role of traditional medicines:

The study also suggests that traditional medicine practitioners, who are so common in India, “may be trained to recognize and refer patients who are at risk to themselves and others, or to advise patients against stopping their medication. Nevertheless, the authors do call for more research in this area to understand the effectiveness and potential risks of traditional medicines in the treatment and management of mental health.

Associated stigma:

It’s worth repeating, unlike many developed countries of the world, there is still a stigma associated with mental health problems in India. There are several instances of its adverse impact, not just on the social level, but also on the employment opportunities. These issues compound the treatment problem, making their public interaction too very weird at times, further increasing social polarization and inequalities.

Not a personal failure:

As the World Health Organization (W.H.O) articulates: “Mental illness is not a personal failure. It doesn’t happen only to other people. We all remember a time not too long ago when we couldn’t openly speak about cancer. That was a family secret. Today, many of us still do not want to talk about AIDS. These barriers are gradually being broken down.”

The Mental Health Care Bill:

The long-awaited ‘Mental Health Care Bill’, which after an extensive consultation process, is now awaiting the lawmakers’ formal approval for its enactment as law. The Bill, was passed by the Rajya Sabha on August 8, 2016, and is expected to be discussed in the Lok Sabha, probably in this budget session. It was first introduced on August 19, 2013, the Rajya Sabha Standing Committee report was submitted on November 20, 2013.

The bill reportedly redefines mental illness to better understand various conditions that are persistent among the population. It states that mental illness is a ‘substantial disorder of thinking, mood, perception, orientation or memory that grossly impairs judgement, behavior, capacity to recognize reality or ability to meet the ordinary demands of life’. Mental conditions related to alcohol or drug abuse are also included in the definition.

The Bill basically aims at protecting the rights of persons with mental illness and promote their access to mental health care.

One of the major highlights of the bill is decriminalization of attempt to suicide, as it states that the person attempting suicide will be presumed to be ‘under severe stress’ unless otherwise proven, and is not punishable. This move is commendable, ‘as it takes away the burden of implicating a mentally ill person in a crime that he or she had no sane control over.’ The W.H.O report on suicides (2000-2012) puts India right on top of the list in Southeast Asia. It says, the average suicide rate in India is 10.9 for every 100,00 people.

Conclusion:

Mental health has now been included in the United Nation’s ‘Sustainable Development Goals (SDG)’ at its General Assembly in September 2015. It is very likely that SDGs addressing mental health issues will become a part of country development plans and of bilateral and multilateral development assistance. This could well mean that millions of people will finally receive much needed help in this area.

Zeroing-in to India, mental health problems have since been a low priority area in the public health narrative of the country. The health information system of the country does not prioritize mental health, either.

To address this growing concern, besides forthcoming enactment of ‘Mental Health Care Bill’, the much-awaited healthcare reform of the nation, should include a transparent policy framework for mental health. A substantial number of community health workers, including traditional medicine practitioners need to be trained to deliver basic mental health hygiene and care. More serious cases, in that process, should be referred to the qualified professionals.

Mental health problems are growing at a rapid pace in India, being a cause of great concern in the healthcare space in India. It deserves to be treated like any other serious physical illness or disease, in a systematic way, backed by adequate budgetary support for affordable treatment and counselling measures, wherever required.

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

Sharper Focus On Vaccine: A Huge Scope To Reduce Disease Burden In India

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Several international research studies have conclusively established that the aggressive application of nationally recommended prevention activities could significantly reduce the burden of disease in several areas. Immunization or vaccination program is one such critical areas.

Several ailments, which used to be so common all over the world, can now be effectively prevented through vaccination. The most common and serious vaccine-preventable diseases are: diphtheria, Haemophilus influenzae serotype b (Hib), hepatitis B and C, measles, meningitis, mumps, pertussis, poliomyelitis, rubella, tetanus, tuberculosis, rotavirus, pneumococcal disease and yellow fever.  The list of the World Health Organization (WHO) indicates that vaccines are now available for 25 different diseases.

Thus, vaccination can save millions of lives and morbidity that such diseases still cause to a very large number of global population. Thanks to vaccines, two most scary diseases – small pox (totally) and polio (almost totally), have been eliminated from the world.

No doubt, why vaccination was voted as one of the four most important developments in medicine of the past 150 years, alongside sanitation, antibiotics and anesthesia by readers of the ‘British Medical Journal (BMJ)’ in 2007. It has been decisively proved that vaccines are one of the most successful and cost-effective public health interventions, which help preventing over 3 million deaths every year, throughout the world, topping the list in terms of lives saved.

In tandem, concerted efforts need to be made by both the industry and the Governments to improve affordable access to all these vaccines for a larger section of the population, especially in the developing world.

A crying need still exists:

Nevertheless, there is still a crying need for greater encouragement, more resource deployment and sharper focus towards newer vaccine development for many more dreaded and difficult diseases. One such area is malaria vaccine.

Some areas of new vaccine development:

Following is an example of some newer therapy areas where novel vaccines are now reportedly under development:

  • Malaria vaccine
  • Cancer vaccine
  • AIDS
  • Alzheimer’s disease

Malaria vaccine:

A July 24, 2015 article of the BBC News states, the ‘European Medicines Agency (EMA)’ gave a positive scientific opinion after assessing the safety and effectiveness of the first anti-malarial vaccine of the world – Mosquirix, developed by the British pharma major GlaxoSmithKline.

The vaccine reportedly targets the ‘P. falciparum’, the most prevalent malaria parasite and the deadlier of the two parasites that transmit the disease. At present, in the absence of any licensed vaccines for malaria, the main preventive measures to contain the spread of this parasitic disease are spraying of insecticides, use of other mosquito repellent and mosquito nets.

However, it was observed during its clinical trial that he best protection with this vaccine was achieved among children aged five to 17 months, receiving three doses of the vaccine a month apart, plus a booster dose at 20 months. In this group, cases of severe malaria were cut by a third over a four-year period, the report said.

Some concern was also expressed, as the effectiveness of the vaccine waned over time, making the booster shot essential, without which the vaccine did not cut the rate of severe malaria over the trial period. Moreover, the vaccine did not prove very effective in protecting young babies from severe malaria.

This caused a dilemma for the ‘World Health Organization (WHO)’. On the one hand, the stark reality of malaria killing around 584,000 people a year worldwide, and on the other, lack of conclusiveness in the overall results for this vaccine. Therefore, the world health body decided at that time to further consider about it, soon after the experts’ deliberation on whether to recommend it for children, among whom trials have yielded mixed results, gets completed.

The good news is, on November 18, 2016, Newsweek reported the announcement of the W.H.O, that Mosquirix will be piloted across sub-Saharan Africa in 2018, after a funding approval of US$ 15 million for this purpose.

Cancer vaccines:

According to the National Cancer Institute, which is a part of the National Institutes of Health (NIH) of the United States, cancer vaccines belong to a class of substances known as biological response modifiers. Biological response modifiers work by stimulating or restoring the immune system’s ability to fight infections and disease. There are two broad types of cancer vaccines:

  • Preventive (or prophylactic) vaccines, which are intended to prevent cancer from developing in healthy people.

-       Persistent infections with high-risk human papillomavirus (HPV) types can cause cervical cancer, anal cancer, oropharyngeal cancer, and vaginal, vulvar, and penile cancers. Three vaccines are approved by the US Food and Drug Administration (FDA) to prevent HPV infection: Gardasil®, Gardasil 9®, and Cervarix®.

-       Chronic Hepatitis B virus (HBV) infection can lead to liver cancer. The FDA has approved multiple vaccines that protect against HBV infection, such as, Engerix-B and Recombivax HB, which protect against HBV infection only.

  • Treatment (or therapeutic) vaccines, which are intended to treat an existing cancer by strengthening the body’s natural immune response against the cancer. Treatment vaccines are a form of immunotherapy.

-       In April 2010, the USFDA approved the first cancer treatment vaccine. This vaccine, sipuleucel-T (Provenge®), is approved for use in some men with metastatic prostate cancer. It is designed to stimulate an immune response to prostatic acid phosphatase (PAP), an antigen that is found on most prostate cancer cells.

Another type of cancer vaccine is currently being developed, known as the Universal Cancer Vaccine.

  • Universal Cancer Vaccine,  June 1, 2016 issue of ‘The Independent’ reported that scientists of Johannes Gutenberg University in Germany have taken a “very positive step” towards creating a universal vaccine against cancer that makes the body’s immune system attack tumors as if they were a virus. The researchers had taken pieces of cancer’s genetic RNA code, put them into tiny nanoparticles of fat and then injected the mixture into the bloodstreams of three patients in the advanced stages of the disease. The patients’ immune systems responded by producing “killer” T-cells designed to attack cancer.

The vaccine was found to be effective in fighting “aggressively growing” tumors in mice. At the same time, such vaccines are fast and inexpensive to produce, and virtually any tumor antigen (a protein attacked by the immune system) can be encoded by RNA, the report said.

The analysts forecast the global cancer vaccines market to grow at a CAGR of 27.24 percent over the period 2014-2019.

HIV/AIDS Vaccine:

The 21st International AIDS Conference (AIDS 2016) held in Durban, South Africa from July 18 to 22, 2016, revealed that a vaccine against HIV will be trialed in South Africa later in 2016, after meeting the criteria needed to prove it, could help fight the epidemic in Africa. A small trial, known as HVTN100, took place in South Africa in 2015 to test the safety and strength of immunity the vaccine could provide, ahead of any large-scale testing in affected populations.

This development reportedly has its origin in a large landmark 2009 trial of RV 144 vaccine in Thailand, demonstrating the proof of concept that a preventive vaccine with a risk reduction of 31 percent could effectively work.  The trial was supported by the World Health Organization (WHO) and UNAIDS. The clinical trial participants who received Vacc-4x, reportedly “experienced a 70 percent viral load decrease relative to their level before starting Anti-Retroviral Therapy (ART), compared with no notable reduction among placebo recipients.”

Alzheimer’s disease vaccine:

A vaccine for Alzheimer’s disease could be trialed in human within the next 3-5 years, after researchers from the United States and Australia have uncovered a formulation that they say successfully targets brain proteins, which play a role in the development and progression of the disease, states a July 18, 2016 report published in the ‘Medical News Today (MNT)’.

This vaccine generates antibodies that target beta-amyloid and tau proteins in the brain – both of which are considered hallmarks of Alzheimer’s disease. In their study, the researchers found that the formulation was effective and well-tolerated in Alzheimer’s mouse models, with no reports of adverse reactions. The vaccine was also able to target the proteins in brain tissue from patients with Alzheimer’s.

Study co-author Prof. Michael Agadjanyan, Institute for Molecular Medicine, California said: “This study suggests that we can immunize patients at the early stages of AD (Alzheimer’s disease), or even healthy people at risk for AD, using our anti-amyloid-beta vaccine, and, if the disease progresses, then vaccinate with another anti-tau vaccine to increase effectiveness.”

If the vaccine continues to show success in these preclinical trials, the researchers envisage that they could be testing the vaccine in individuals at high risk for Alzheimer’s, or those in the early stages of the disease, within the next 3-5 years.

More details on vaccine development:

A 2012 report on vaccines, published by the Pharmaceutical Research and Manufacturers of America (PhRMA) give details of vaccines under development.

Vaccine requirements of the developing world: 

Developing countries of the world are now demanding more of those vaccines, which no longer feature in the immunization schedules of the developed nations. Thus, to supply these vaccines at low cost will be a challenge, especially for the global vaccine manufacturers, unless the low margins get well compensated by high institutional demand.

Issues and challenges:

To produce a safe, effective and marketable vaccine, besides R&D costs, it takes reportedly around 12 to 15 years of painstaking research and development process.

Moreover, one will need to realize that the actual cost of vaccines will always go much beyond their R&D expenses. This is mainly because of dedicated and highly specialized manufacturing facilities required for mass-scale production of vaccines, and then for the distribution of the same mostly using cold-chains.

Around 60 percent of the production costs of vaccines are fixed in nature (National Health Policy Forum. 25. January 2006:14). Thus, such products will need to have a decent market size to be profitable. Unlike many other medications for chronic ailments, which need to be taken for a long duration, vaccines are administered for a limited number of times, restricting their business potential.

Thus, the long lead time required for the ‘mind to market’ process for vaccine development together with high cost involved in their clinical trials/marketing approval process, special bulk/institutional purchase price and limited demand through retail outlets, restrict the research and development initiatives for vaccines, unlike many other pharmaceutical products.

Besides, even the newer vaccines will mostly be required for the diseases of the poor, like Malaria, Tuberculosis, HIV and ‘Non-Communicable Diseases (NCDs)’ in the developing countries, which may not necessarily guarantee a decent return on investments for vaccines, unlike many other newer drugs. Thus, the key issue for developing a right type of newer vaccine will continue to be a matter of pure economics.

India needs a vibrant vaccine business sector:

For a greater focus on all important disease prevention initiatives, there is a need to build a vibrant vaccine business sector in India. To achieve this objective the government should create an enabling ecosystem for the vaccine manufacturers and the academics to work in unison. At the same time, the state funded vaccine R&D centers should be encouraged to concentrate more on the relevant vaccine development projects, ensuring a decent return on their investments for long-term economic sustainability.

Often, these stakeholders find it difficult to deploy sufficient fund to take their vaccine projects successfully through various stages of clinical development to obtain marketing approval from the drug regulator, while earning a decent return on investments. This critical issue needs to be urgently addressed by the Government to make the disease prevention initiatives in the country sustainable.

A possible threat to overcome: 

As per reports, most Indian vaccine manufacturers get a major chunk of their sales revenue from exports to UN agencies, charitable organizations like, the Bill & Melinda Gates Foundation, GAVI, and other country-specific immunization programs.

The report predicts, the virtual monopoly that Indian vaccine manufacturers have enjoyed in these areas, will now be challenged by China, as for the first time in 2012, the Chinese national regulatory authority received ‘pre-qualification’ certification of WHO that allows it to approve locally manufactured vaccines to compete for UN tenders.

Conclusion:

Keeping this in perspective, vaccine related pragmatic policy measures need to be taken in the country for effective disease prevention, covering all recommended age groups, of course, with an equal focus on their effective implementation, without delay. Consequently, this will not only help reduce the disease burden in the country, but also provide the much-awaited growth momentum to the vaccine market in India.

Alongside, increasing number of modern imported vaccines coming in, would help India address one of its key healthcare concerns effectively, and in a holistic way.

It is about time to aggressively garner adequate resources to develop more modern vaccines in the country. In tandem, a rejuvenated thrust to effectively promote and implement vaccine awareness campaigns, would help immensely in the nation’s endeavor for disease prevention with vaccines, that offers a huge scope to reduce disease burden, for a healthier India.

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

‘The Memory Thief’ Still Eludes Grasp Of Pharma R&D

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Over several decades, in fact, since its very inception, pharma R&D has been playing a crucial role in alleviating diseases of various types – from severe acute infections, to a large variety of non-infectious chronic illnesses, including many dreaded diseases, such as, cancer.

In the battle against diseases, pharma research and development initiatives, both by a large number of academia and also the pharma players, have mostly won, decisively. R&D has been consistently coming out with flying colors, both in finding cures and also in effective disease management, to prolong and improve the quality of life of billions of people, the world over.

However, there is still an important disease area, where pharma R&D has not been successful yet. Without any prior warning, this disease stealthily affects the human brain and completely erases the entire lifetime memory of the person, gradually but surely, over a relatively short period of time. This disease is known as Alzheimer’s, following the name of Dr.  Dr. Alois Alzheimer, who first detected it in 1906. Due to its devastating impact on human memory, some, very appropriately, term the Alzheimer’s disease – ‘The memory thief’.

I discussed this subject in one of my previous articles titled, “It Took 90 Years To Accept The Dreaded Disease Discovered In A Mental Asylum”, published in this Blog on December 01, 2014.

A recent alarm for a future epidemic:

A January 6, 2016 paper titled, “Sounding the alarm on a future epidemic: Alzheimer’s disease”, published by the well reputed public research university in the United States, ‘The University of California, Los Angeles (UCLA), made the following noteworthy observation:

“If the aging trend illustrates the success of public health strategies, it also raises the specter of a major public health crisis – a sharp rise in the number of people living with Alzheimer’s disease.”

Causing havoc in many lives and families:

‘Alzheimer’s Disease Education and Referral (ADEAR) Center’ of the United States, currently ranked Alzheimer’s disease as the sixth leading cause of death in the United States, but recent estimates indicate that the disorder may rank third, just behind heart disease and cancer, as a cause of death for older people.

According to Mayo Clinic, the frightful disease – Alzheimer’s, is progressive in nature. At the onset, the afflicted persons may exhibit just mild confusion and some difficulty in remembering.

Tragically, in around five years or a little after, Alzheimer’s would erase the entire lifetime memory of most of the affected persons, when they may even forget the important people in their lives and undergo dramatic personality changes.

The dreaded disease – Alzheimer’s, still without any effective medication in place, has been causing havocs in many lives and families since long, involving many great international personalities too. It is one of those ailments, where the disease process mostly commences almost a decade before the visible appearance of above clinical symptoms.

Worldwide Projections of Alzheimer’s Disease Prevalence:  

The above UCLA report highlights the worldwide projections of Alzheimer’s disease prevalence from 2005 to 2050, which includes both the early and late stage patients.

According to this report, the number of people afflicted by this total memory-erasing disease, would grow from 35.26 million in 2015 to as high as 106.23 million populations in 2050, as follows:

Year Alzheimer’s disease prevalence (in Millions)
2005 25.73
2010 30.12
2015 35.26
2020 41.27
2025 56.55
2040 77.49
2050 106.23 
Similar situation in India: 

The situation in India seems to be no different, though we are living today in the midst of the hype of ‘Demographic Dividend’.

According to the March 2012 report of ‘The Population Reference Bureau’ of Washington DC of the United States, India’s population with ages 60 and older, who are more prone to Alzheimer’s disease, is projected to increase dramatically over the next four decades, from 8 percent in 2010 to 19 percent in 2050. By mid-century, this age group is expected to encompass 323 million people, a number greater than the total US population in 2012.

Currently available treatment:

At present, there are no treatments available that can stop or slow down the progression of Alzheimer’s disease in the brain of the affected persons.

As I wrote earlier, very often the onset of this disease starts decades before the visible manifestation of even preliminary symptoms. Thus, there is a critical need for early medical interventions to arrest the disease progression.

Again, quoting Mayo Clinic, current Alzheimer’s disease medications and management strategies may at best temporarily improve symptoms. These symptomatic treatments can sometimes, help Alzheimer’s patients maximize cognitive and other related functions to the extent possible, and thereby maintain independence for a little while longer.

Primary reasons:

Many earlier research had postulated that plaques and tangles are primarily responsible for the permanent damage and destruction of nerve cells.

While the plaques are abnormal clusters of beta-amyloid protein fragments between nerve cells, tangles are twisted fibers made primarily of a protein called “tau” that accumulates in the brain cells, damaging and killing them.

The appearance of these two in the brain structure makes the affected persons suffer from almost irreversible memory loss, altered thinking pattern and associated behavioral changes, which are usually serious in nature.

However, I shall discuss below about a very recent research that is focusing on a different and novel target.

Key hurdles in Alzheimer’s drug development:

Despite all these, almost at a regular interval, we have been getting to know about various new studies on Alzheimer’s disease, mostly from academic and scientific institutions. It clearly vindicates, at least, the global academia and also some pharma players, are working hard to get an effective key to unlock the pathway of Alzheimer’s disease process.

The hurdles in developing a suitable drug for effective treatment of Alzheimer’s disease are many. A paper titled, “Researching Alzheimer’s Medicines: Setbacks and Stepping Stones Summer 2015”, published by the Pharmaceutical Research and Manufacturers of America (PhRMA) – a trade association of leading biopharmaceutical researchers and biotechnology companies of the United States, cited the following three major reasons as examples:

  • Scientists still do not understand the underlying causes and mechanisms of the disease. It remains unknown whether many of the defining molecular characteristics of the disease are causes, effects, or signs of progression. This scientific knowledge gap makes the identification and selection of viable targets for new medicines difficult. 
  • Current preclinical models of Alzheimer’s disease are limited in the extent to which they can be extrapolated or translated to the human condition. Better models are needed to facilitate preclinical testing of drug candidates and better predict the effects of the drug in humans. 
  • The absence of validated, non-invasive biomarkers to identify disease presence and progression means the diagnosis is delayed until an individual becomes symptomatic. This makes it particularly challenging to evaluate, enroll, retain, and follow up with patients in clinical studies. It also makes it challenging to assess the effects of the drug candidate. Ultimately, this leads to long and very expensive clinical trials. 

The PhRMA publication also states that “researchers believe that no single medicine will be able to defeat Alzheimer’s; rather, several medicines will probably be needed to combat the disease. Thus, researchers need not one, but an array of options to prevent or treat Alzheimer’s disease.”

High rate of R&D failure, with flickers of success:

The above PhRMA publication also indicates, between 1998 and 2014, 123 medicines in clinical development have been halted and have not received regulatory approval.

In this rather gloomy R&D scenario, there are also some flickers of success in this pursuit.

In a recent study, the scientists at the University of Southampton announced that their findings added weight to evidence that inflammation in the brain is what drives the disease. A drug, used to block the production of these microglia cells in the brains of mice, had a positive effect. The study, therefore, concluded that blocking the production of new immune cells in the brain could reduce memory problems seen in Alzheimer’s disease. This finding is expected to pave the way for a new line of treatment for Alzheimer’s disease.

Currently, most drugs used for the treatment of dementia targeted amyloid plaques in the brain, which are considered as a key characteristic of people with the Alzheimer’s disease. According to an article published in Forbes on March 20, 2015, several amyloid-clearing drugs have failed to show statistically significant benefits in large clinical trials. Notable among those are Bapineuzumab – developed by Elan Pharmaceuticals, Pfizer and Johnson & Johnson failed in 2009; Solanezumab of Eli Lilly failed in 2012; and so did Gantenerumab of Roche in 2014.

The latest study, as quoted above, published in the journal ‘Brain’, on January 8, 2016 suggests that targeting inflammation in the brain, caused by a build-up of immune cells called microglia, could halt progression of the disease.

Another flicker of hope is, another drug being developed by Biogen Idec for the treatment of Alzheimer’s disease appeared to slow down the inexorable cognitive decline of patients’, though in a small and a preliminary study.

Lack of research funding is a critical impediment:

Be that as it may, many experts believe that not enough is still being done in Alzheimer’s research, especially in the area of funding.

In an article titled, “Alzheimer’s disease: are we close to finding a cure?” published by ‘Medical News Today (MNT)’ on August 20, 2014, quoted the Alzheimer’s Society, as follows:

“Dementia is the biggest health and social care challenge of our generation, but research into the condition has been hugely underfunded. This lack of funding has hampered progress and also restricted the number of scientists and clinicians working in the dementia field.”

As an illustration, MNT mentioned that in the United States Alzheimer’s research received US$504 million in funding from the National Institutes of Health (NIH) in 2014, while cancer received more than US$5 billion. Breast cancer alone received more funding than Alzheimer’s at US$674 million. 

Quoting an expert in this field the report highlighted, “Other diseases have demonstrated that sustained investment in research can improve lives, reduce death rates and ultimately produce effective treatments and preventions. We have the tools and the talent to achieve breakthroughs in Alzheimer’s disease, but we need the resources to make this a reality.”

Conclusion:

From the published research reports, it appears that the quest to decipher the complicated Alzheimer’s disease process continues, at least by the academic and scientific institutions, with equal zest. 

These scientists remain committed to finding out the ‘magic bullet’, which would be able to effectively address the crippling disease. As a result, the research has also moved from discovery of effective amyloid-clearing drugs to search for new molecules that targets inflammation in the brain, caused by a build-up of immune cells called microglia. 

Undeniably, the challenges ahead are still too many.

Nevertheless, enough confidence is also building up to halt the epidemic of Alzheimer’s by overcoming those hurdles, the world over. Experts are hoping that both a cure and also successful preventive measures for the disease, are not too far anymore.

Though some Global Pharma majors invested significantly to discover effective drugs for Alzheimer’s disease, overall research funding in this area is still far from adequate, according to the Alzheimer’s Society. 

For various reasons, not many pharma players today seem to believe that it would be financially prudent for them to make significant investments in developing new molecules for the treatment of Alzheimer’s – the disease that robs memory of millions of people, completely, and without any prior warning whatsoever.

‘The Memory Thief’ continues to prowl, undeterred, still eluding otherwise brilliant Pharma R&D, across the world.

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

 

Alzheimer’s Disease: Robs Memory: Steals Dignity: Escapes Treatment

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At a well reputed Mumbai Club, quite unexpectedIy, I bumped into Sumeet (name changed). It has indeed been a long while since we met at his home in South Mumbai. He came there with his wife Shilpa (name changed). Sumeet, was literally an icon of yesteryears in every respect, a bright engineer with MBA and a much-accomplished leader of his time who retired at the turn of the new millennium.

“How are you Sumeet da?”, I started off cheerfully, as he was looking all around.

“Very well, very well and you?”, he replied softly with a faint quivering of his lips, but without any eye contact.

“I am good Sumeet da, but have you recognized me?” I queried with apprehension.

Turning his face towards Shilpa, Sumeet hesitatingly replied, “No. But have we met before?”

The innocent question struck me as lightning from nowhere, making me a bundle of emotion momentarily. With a lump in my throat and clenching my fists, I struggled hard to regain my composure.

Sumeet, one of the the brightest of brights, from earlier years of our generation, is now a victim of a dreaded illness called Alzheimer’s Disease (AD). The disease has robbed him of his priceless memory, changed his behavior beyond recognition, kidnapped him from his own self, and has stolen most of his much-valued dignity in life, mercilessly.

Alzheimer’s Disease (AD) in brief:

Alzheimer’s Disease (AD), as known to many, is the most common form of dementia, accounting for 60 to 80 percent of all cases, that results in serious memory loss and other intellectual and behavioral traits of individuals, serious enough to interfere with a person’s daily life and tasks.

AD has been defined as, a neurodegenerative type of dementia, in which the death of brain cells causes memory loss and cognitive decline. The total brain size shrinks with AD, as the tissue has progressively fewer nerve cells and connections. Brains affected by AD would always show tiny inclusions in the nerve tissue, called plaques and tangles.

Plaques are found between the dying cells in the brain – from the build-up of a protein called beta-amyloid, while the tangles are within the brain neurons and from a disintegration of another protein, called tau.

Though the abnormal protein clumps and inclusions in the brain tissues are always present in AD, there could be another underlying process also that is actually causing the disease, which scientists are not sure of, as yet.

Be that as it may, with the progression of the disease, besides memory loss, AD precipitates other serious symptoms, such as, deepening confusion about events, time and place; mood and behavior changes; unfounded suspicions about family, friends and even professional caregivers; disorientation; other behavior changes; then difficulty speaking, swallowing and walking. At a late stage, the patients lose the ability to carry on even a conversation and respond to their environment.

Cause:

Although the causes of AD are not quite clear to the scientists, as yet, the disease results from a combination of genetic, lifestyle and environmental factors that adversely affect the brain over a period of time.

Scientists opine that in less than 5 percent of the cases, the causative factors of the AD are specific genetic changes that can almost definitively indicate that a person would develop AD. According to published reports, while the strongest risk gene found so far is apolipoprotein e4 (APOE e4), other risk genes have not been conclusively confirmed, just yet.

Survival rate:

According to published reports, the survival rate of AD patients, after their symptoms become noticeable to others, can range from 4 to 20 years, depending on health conditions, the average being 8 years. In the United States, AD is the sixth leading cause of death.

Not a normal part of the aging process:

Although majority of people with AD are over 60 years of age, it is not just a disease of old age. Up to 5 percent of cases the disease may strike even younger people in 40s or 50s. Women are found to be more prone to AD than men.

Prevalence:

The World Health Organization (WHO) declared dementia, in general, as a priority condition in 2008, through the Mental Health Gap Action Program.

Each year, the total number of new cases of dementia worldwide has been reported as nearly 7.7 million, which means one new case every four seconds.

According to AC Immune SA of Switzerland, AD will be one of the biggest burdens of the future society showing dramatic incidence rates. Over 44 million people were now affected with AD worldwide. Since the incidence and prevalence of AD increase with age, the number of patients will grow dramatically as our society gets older. By 2050 the patient numbers are expected to triple, touching 135 million AD patients worldwide.

India:

According to another report titled, “Priority Medicines for Europe and the World – A Public Health Approach to Innovation” By Béatrice Duthey, Ph.D published on 20 February 2013, the fastest growth of AD in the elderly population is now taking place in China, India, and their south Asian and western Pacific neighbors and has become a major public health concern as the population ages.

AD is the most common kind neurodegenerative disease in India. There are reportedly around 5 million dementia patients in the country of which, roughly 70 to 80 per cent have AD. This number is expected to double by 2030, and the costs involved are expected to increase three times. Besides drugs, costs of ‘care giving’ for AD patients are also expected to rise significantly.

The market and economic impact:

According to AC Immune SA, AD market is currently estimated at US$ 5 billion annually and is expected to exceed US$ 20 billion by 2020.

The global economic impact of AD is shown by its worldwide cost of US$ 640 billion, exceeding 1 percent of gross world product. It can be seen as the most significant health crisis in the 21st century. The 2010 annual costs of treating and caring for patients was  $183 billion in the US alone. This figure is expected to increase to $ 1.1 trillion in 2015.

AD is becoming the third most expensive disease, counting for 30 percent of the US healthcare costs. The medical costs for Alzheimer´s Disease patients are three times higher than for other older patients. Moreover, AD patients mostly live at home resulting in high impact on family’s health, emotional well being, as well as their employment and financial security.

India:

Many elderly people in India live with AD without any treatment, accepting the condition as an unavoidable one and related to the aging process of an individual.

The present day costs of maintaining a patient with AD in India, who has been diagnosed, are reportedly any where between Rs. 50,000 to Rs. 4,50,000. Additionally, many elderly couples are just not frail and living alone these days, as their children may be working in a far off country.

Currently, AD market in India is reportedly around US$ 50 million, growing around 25 percent. More disease awareness initiatives are expected to accelerate the market growth by manifold. Sun Pharma is the market leader in the AD segment. Other, key players are Dr. Reddy’s Laboratories (DRL), Torrent, Glenmark, Ranbaxy, Cipla and Alkem

In fact, Cipla recently reportedly announced an investment of US$ 21 million in Chase Pharmaceuticals of the United States, which is an early-stage drug development company focused on developing novel approaches to improve treatments for Alzheimer’s disease.

In addition, DRL is also making rapid strides in this area. In 2013, the company launched generic Donepezil Hydrochloride tablets for AD in the US market.

Treatment:

There is no cure for AD as of date. There is no disease-modifying treatment for AD even in the global market, either.

Since 2003, there has not been any single innovative drug launched in the global market either for prevention or cure of AD. The available drugs cannot stop the progression of the disease. They just temporarily slow the worsening of dementia symptoms. The situation gets even more complicated as the disease is usually diagnosed late, when already 70 percent of the nerve cells in the brain are dead.

Global researchers are looking for new treatments to alter the course of the disease and improve the quality of life for people suffering from this dreaded disease.

For the treatment of AD, the U.S. Food and Drug Administration (FDA) has approved two types of medications, namely,

-      Cholinesterase inhibitors, such as, Aricept, Exelon, Razadyne, Cognex

-      Memantine, such as, Namenda to treat the cognitive symptoms (memory loss, confusion, and problems with thinking and reasoning) of the disease.

Many doctors prescribe both types of medications together, along with Vitamin E for cognitive changes.

However, Aricept is the only cholinesterase inhibitor approved to treat all stages of AD, from moderate to severe.

Although, Tacrine (Cognex) was the first cholinesterase inhibitor approved, very few doctors prescribe this drug today because of more serious side effects.

According to The Alzheimer’s Association, the world’s leading voluntary health organization in Alzheimer’s care, support and research; the current treatments for AD at a glance are as follows:

Treatments at a glance:

Generic Brand Approved For Side Effects
donepezil Aricept (Eisai/Pfizer) All stages Nausea, vomiting, loss of appetite and increased frequency of bowel movements.
galantamine Razadyne (Janssen) Mild to moderate Nausea, vomiting, loss of appetite and increased frequency of bowel movements.
memantine Namenda/Ebixa (Actavis/Lundbeck) Moderate to severe Headache, constipation, confusion and dizziness.
rivastigmine Exelon (Novartis) Mild to moderate Nausea, vomiting, loss of appetite and increased frequency of bowel movements.
tacrine Cognex (Pfizer) Mild to moderate Possible liver damage, nausea, and vomiting.
vitamin E Not applicable Not approved Can interact with antioxidants and medications prescribed to lower cholesterol or prevent blood clots; may slightly increase risk of death.

India:

In India the treatment is much the same. Besides, patented versions, relatively cheaper generic equivalents of all these drugs are available in the country.

On going drug trials: 

As there are no effective therapies for AD, this therapy segment remains at the top of the list for unmet needs, globally. Disease-modifying therapies could transform this market appreciably.

At the Alzheimer’s Association International Conference held in Copenhagen, Denmark from July 12 to 17, 2014, scientists described five trials that may prevent the onset of the neurodegenerative disease in people not yet experiencing cognitive decline, as follows:

  • Gantenerumab and Solanezumab: Two experimental drugs, , both of which are antibodies designed to bind to amyloid and prevent it from forming brain-damaging plaques.
  • Solanezumab: An experimental anti-amyloid compound.
  • The trial will first pilot a screening test for two genes to see if it can accurately predict risk of mild cognitive impairment. The next phase of the trial will test an experimental compound designed to delay symptoms of mild cognitive impairment and Alzheimer’s disease in people without symptoms.
  •  Crenezumab: Anti-amyloid antibody
  •  An immunotherapy that prompts the body’s immune system to produce antibodies against amyloid protein, and a beta-secretase inhibitor that blocks the production of certain forms of amyloid.

According to Alzheimer’s Disease Therapeutics and Diagnostics: World Market 2013-2023 the following global players hold greatest potential. In particular, the analysis investigates these companies:

• Pfizer
• Eisai
• Actavis
• Lundbeck
• Novartis
• TauRx Therapeutics
• AC Immune.

A large pharma industry association of the United States has indicated in a report that dedicated researchers are currently working on nearly 100 medicines in development for Alzheimer’s and other dementias. These could give future patients a new hope for a future free of AD.

Conclusion:

AD can strike anyone at any time without any visible warning whatsoever. It then robs the person’s memory, steals the individual’s dignity of life, evades all available current treatments, till it is able to extinguish slowly and agonizingly the last flicker of life, mostly much sooner than otherwise it would have been.

Like many other countries, India – the world’s 2nd largest population, is also facing a crisis in dealing with the growing number of AD patients.

These patients require constant support from family/professional caregivers along with medical attention. The progression of the disease leaves patients mostly in semi-vegetative states, at times for years.

If no cure is available for AD, arresting the disease progression becomes a major health challenge in the country. Currently only short term symptomatic treatment is available. Neither is there any organized mechanism for early diagnosis of AD with specific markers, which could lead to early intervention with the most appropriate and effective drugs to address the disease sooner.

Alzheimer’s Disease that turns millions of otherwise boisterous individuals, like Sumeet, into living dead, snatching away everything that a life would possibly demand at its minimum, must feature in the areas of focus of the new national heath policy of India under the new dispensation.

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

A Potential Game Changer For Pharma R&D

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The ghost of ‘Patent Cliff’ has been haunting the ‘Big Pharma’ since quite some time. This situation has been further aggravated by cost containment pressures of various Governments both in the developed and the emerging markets together with contentious issues on Intellectual Property Rights (IPR).

The ‘dream run’ that the innovator companies enjoyed in launching patented products so frequently and making many those blockbuster drugs of billions of dollars, is no longer a reality.

According to the findings of ‘Pharmaceutical R&D returns performance’ by Deloitte and Thomson Reuters of December 2012, the R&D Internal Rate of Return (IRR) of leading pharmaceutical companies had fallen to 7.2 percent in 2012 from 7.7 percent in 2011.

Many would, therefore, tend to believe that the paradigm is changing significantly. The new paradigm in the brand new millennium throws some obnoxious challenges, including some related to IPR, triggering a process of churning in the global pharma industry. Some astute CEOs of ‘Big Pharma’, having a deep introspection, are bracing for restructuring, not just in the business processes, but also in the process of organizational behavior, mindset, ethics and values. Unfortunately, there are many who seem to believe that this giant wheel of change can be put on the reverse gear again with might.

A new PPP initiative in pharma research:

This trying situation calls for collaborative initiatives to achieve both knowledge and cost synergies for a quantum leap in harnessing R&D output.

One such big laudable initiative has come to the fore recently in this arena. Having experienced something like the ‘law of diminishing return’ in pursuit of high resource intensive R&D projects aimed at critical disease areas such as Alzheimer’s, 10 big global pharma majors reportedly decided in February 2014 to team up with the National Institutes of Health (NIH) of the United States in a ‘game changing’ initiative to identify disease-related molecules and biological processes that could lead to future medicines.

This Public Private Partnership (PPP) for a five-year period has been named as “Accelerating Medicines Partnership (AMP)”. According to the report, this US federal government-backed initiative would hasten the discovery of new drugs in cost effective manner focusing first on Alzheimer’s disease, Type 2 diabetes, and two autoimmune disorders: rheumatoid arthritis and lupus. The group considered these four disease areas among the largest public-health threats, although the span of the project would gradually expand to other diseases depending on the initial outcome of this project.

Not the first of its kind:

AMP is not the first PPP initiative of its kind. The Biomarkers Consortium was also another initiative, not quite the same though, of a major public-private biomedical research partnership managed by the Foundation for the NIH with broad participation from a variety of stakeholders, including government, industry, academia, patient advocacy groups and other not-for-profit private sector organizations.

Open innovation strategy of GlaxoSmithKline (GSK) to discover innovative drugs for malaria is yet another example, where GSK collaborated with the European Bioinformatics Institute and U.S. National Library of Medicine to make details of the molecule available to the researchers free of cost with an initial investment of US$ 8 million to set up the research facility in Spain, involving around 60 scientists from across the world to work in this facility. 

Nearer home, ‘Open Source Drug Discovery (OSDD)’ project of the Council of Scientific and Industrial Research (CSIR) is a now a global platform to address the neglected tropical diseases like, tuberculosis, malaria, leishmaniasis by the best research brains of the world working together for a common cause.

Challenges in going solo:

In this context, it is worth mentioning that the CEO of Sanofi, Chris Viehbacher reportedly said in an interview on April 15, 2013 that his company “Won’t push hard to find an Alzheimer’s treatment because the science isn’t advanced enough to justify the costs to develop a drug. Therefore, Sanofi definitely won’t commit major resources seeking to discover an Alzheimer’s therapy.” He further stated, “I think we have to do a lot more basic science work to understand what’s going on. We really, at best, partially understand the cause of the disease. It’s hard to come up with meaningful targets.”

The above report also mentioned that the first Alzheimer’s drugs, should they prove successful, would lead to a market worth US$ 20 billion as estimated in 2012.

Long desired OSDD model:

The new AMP R&D model in the United States seems to have derived its impetus from the “open-source” wave that has swept the software industry. Keeping that spirit unchanged, in this particular ‘open source’ model too, the participants would share all scientific findings with the public and anyone would be able to use these results freely for their own research initiatives.

The collaborators of this PPP project are expected to gain a better understanding of how each disease type works, and thereafter could make use of that collaborative knowledge to discover appropriate new molecules for the target disease areas.

AMP is also expected to arrive at methods to measure a disease progression and its response to treatment much more precisely. This will enable the pharma participants getting more targets right and early, thereby reducing the high cost of failures. Just to cite an example, there have been reportedly 101 failures since 1998 in late-stage clinical trials by Pfizer, J&J and Elan Corp.

Commendable initiative in the uncharted frontier:

The ‘open source’ AMP initiative of ‘Big Pharma’ in the uncharted frontier is indeed very unusual, as the innovative drug companies are believed to be not just quite secretive about the science that they are engaged in, but also near obsessive in pursuing and clinging-on to the Intellectual Property Rights (IPR) through patents for each innovative steps related to potential new drugs.

It is worth noting that like any OSDD model, this PPP agreement also denies the participating players from using any discovery for their own drug research up until the project makes all data public on that discovery.

However, as soon as the project results will be made public, fierce competition is expected all around to develop money-spinning winning drugs.

Participating companies:

Ten pharma companies participating in AMP are reportedly, AbbVie, Biogen Idec, Bristol-Myers Squibb, GlaxoSmithKline, Johnson & Johnson, Eli Lilly, Merck & Co., Pfizer, Sanofi and Takeda. It is good to find within the participants some staunch business rivals. According to a report, a number of foundations, including the American Diabetes Association and the Alzheimer’s Association have also agreed to get involved in the project.

Some key non-participants:

For various different reasons some key pharma majors, such as, Amgen, Roche and AstraZeneca have decided not to participate in AMP.

AMP project and cost:

AMP reportedly has reportedly articulated its intent to: “Map molecular paths that each disease follows and to identify key points that could be targets for treatment. In Type 2 diabetes, for instance, researchers hope to catalog the genetic changes that raise or lower a person’s risk for developing the disease. It also will seek novel methods to measure each disease’s course while assessing if a potential drug is working. Being able to measure a disease’s progress in that way, could speed drug development by raising a company’s confidence that an experimental drug is working, or let it more quickly end a project if a drug isn’t working.”

The participating companies and the NIH have jointly agreed that the AMP would put together a research system on cost sharing basis by pooling the brightest minds who are experts on each disease, along with the best drug discovery laboratories, relevant data and samples from clinical trials to decipher the diseases in ways, which none of these pharma players has been able to achieve just yet on its own.

To achieve all these, the total cost has been estimated at roughly just US$ 230 million, as compared to US$135 billion that the global drug industry claims to spend in a year on R&D.

This should also be seen in context of a study of December 2012 carried out by the Office of Health Economics (OHE), UK with a grant from AstraZeneca, which estimated that the cost of developing new medicine has risen by ten times from US$100 million in the 1970s to as high as US$ 1.9 billion in 2011.

As a head honcho of a global pharma biggie had put it earlier, a large part of these R&D expenses are the costs of failure, as stated above.

Criticism:

As usual, criticism followed even for this path-breaking project. Critics have already started questioning the rationale of the choice of the above four disease areas, with an exception perhaps for Alzheimer’s and wondered whether the participating players are making use of the federal fund to push hard the envelope of their respective commercial intents.

Another new collaborative approach: 

In another recently announced collaborative initiative, though not of the same kind, where Merck & Co has reportedly entered three separate collaboration agreements to evaluate an immunotherapy cancer treatment that is part of a promising new class of experimental drugs that unleash the body’s immune system to target cancer cells.

Conclusion:

There could still be some hiccups in the process of effective implementation of the AMP project. Hope, all these, if any, will be amicably sorted out by the participants of stature for the benefits of all.

Be that as it may, ‘open source’ model of drug discovery, as believed by many, would be most appropriate in the current scenario to improve not only profit, but also to promote more innovative approaches in the drug discovery process.

On May 12, 2011, in an International Seminar held in New Delhi, the former President of India Dr. A.P.J. Abdul Kalam highlighted the need for the scientists, researchers and academics to get effectively engaged in ‘open source’ philosophy by pooling talent, patents, knowledge and resources for specific R&D initiatives from across the world for newer and innovative drugs.

According to available reports, one of the key advantages of the ‘open source’ model would be substantial reduction in the high cost of failures of R&D projects, which coupled with significant saving in time would immensely reduce ‘mind-to-market’ span of innovative drugs in various disease areas, making these medicines affordable to many more patients.

Thus, PPP initiatives in pharmaceutical R&D, such as AMP, are expected to have immense potential to create a win-win situation for all stakeholders, harvesting substantial benefits both for the pharmaceutical innovators and the patients, across the world.

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.