Tag Archives: cure

Taming Two Critical Covid Uncertainties For Pharma’s Sustainable Growth

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The reasons behind a great urgency of the Governments, besides high expectations of the general public, to have the ‘ultimate solution’ very soon, against the ongoing pandemic, are understandable. However, various media-hyped narratives on their clinical trials, and timeframe for expected launch – ranging from November this year to anytime in 2021, are making many experts to raise eyebrows on the scientific processes followed for Covid vaccine development.

Exact answers to the ultimate efficacy standard, safety profile and dates of their availability to the entire population, are still not clear – not even to many domain experts. Besides, two other critical and fundamental questions in India, are related to huge financial resources and other wherewithal, such as, countrywide stringent cold-chain logistics network, required to achieve this goal.

While effective, safe and high-quality vaccines, as and when these will come, will be pivotal to contain the alarming spread of Covid-19 – and that too in a wave after wave manner. Alongside, the intense search for effective anti-Covid medicines are also expected to come to fruition. Doctors will then have in their arsenals a number of highly effective alternatives, that can predictably cure individuals, when infected by this lethal virus.

It causes a great concern when someone asks, when will those days of great relief to all come? For, those days may or may not be very soon – could well be for an indefinite period. No one seems to know the answer, yet.

Until then, pharma companies can’t afford to remain in a ‘quick-fix mode’ to address the problems related to Covid related market and consumer mindset changes. Choosing this path could eventually prove to be very costly, especially for the lost time in leveraging some key opportunities. Moving in that direction, would entail rebuilding the organization by creating a new work-culture – a mindset to be all-time ready for any disruptive changes in business. Most importantly, if or as and when it comes, the organization should not get as overwhelmed, as is happening during the current global pandemic.

In this article, I shall deliberate the following two critical and interrelated Covid-19 issues:

  • The uncertainty in achieving what everybody is expecting to get right away – getting a preventive vaccine or a cure for the infected patients.
  • Inordinate delay in getting prompt medical care by many patients for non-Covid related serious ailments, leading to complexity of the disease. How long this situation will continue still remains uncertain.

As things stand today, these uncertainties could continue for an indefinite period, making some of the Covid related changes irreversible. Thus, my aim will be, first to recap where we are today with these niggles. And then, focusing on the crucial need to pave a balanced pathway – uncharted by anyone, for destination success – in the new world order. Let me begin with the first issue first.

The uncertainty in achieving what everybody is expecting:

Although, some Covid vaccines, reportedly, will be ready by early 2021, uncertainties and delays are still anticipated on the way. Some the reasons may include the following:

  • A critical challenge: About 5.6 billion people worldwide would need to be immune in order to end the pandemic (NEJM). Thus, vaccination process may take years to achieve the coverage necessary for everyone to be protected.
  • Huge investment required: India would need to invest between Rs 3,000 -5,000 crore to create additional facilities for making a huge number of vaccines, required for the Indian population. Currently no one has the capacity to manufacture it for 1.3 billion Indian populations. Moreover, vaccine alone is not the solution to the COVID-19 problem, according to experts.
  • High vaccine cost in India: As these vaccines come from a very difficult platform its cost is going to be significantly higher than many other vaccines, so there is going to be a requirement to think about how we are going to fund this.
  • Coronavirus mutating, potentially evolving: As reported on September 24, 2020, Covid’s continual mutation may make it increasingly contagious. The study says, it’s possible that when our population-level immunity gets high, this Coronavirus will find ways to get around our immunity.
  • The logistical challenge of a lifetime: Getting billions of doses of COVID-19 vaccines around the world quickly, would require 15,000 flights and 15 million cooling boxes. Stringent temperature control requirements for the vaccine supply chain must not be compromised at any point, not even in rural India. It’s worth noting, some of these vaccines may need to be kept at temperatures as low as -80 degrees Celsius. Currently, even in the developed world, the most efficient medical supply chain conventionally distributes vaccines at +2–8°C.
  • Vaccines may not provide complete protection: If COVID-19 re-infections are common, “vaccines might not completely protect against the virus” and would instead require a design similar to seasonal flu shots to protect from new variants. Interestingly. India may, reportedly, approve covid-19 vaccines that show 50 percent efficacy in clinical trials.

Converting problems into opportunities:

Such uncertainties may not only aggravate people’s overall health risks, but also their exposure to Covid infection. Drug companies, drug authorities and various Governments have been working hard on these issues. However, as flagged earlier, amid this health crisis, there is also another growing concern of a very serious nature. It pertains to many people delaying their non-Covid related medical care and medical interventions, for various reasons.

Pharmaceutical companies can convert this problem into a golden business opportunity with ‘patient-centric’ innovative strategies having a cutting-edge, and from a number of platforms. Let me illustrate this point with an interesting example of an initiative taken by a global pharma major, in this area.

A pace setting initiative:

On September 22, 2020, Fierce Pharma reported, ‘J&J wants everyone to know that taking care of their health can’t wait—even during a pandemic.’ This effort is based on the findings of a recent Harris Poll commissioned by them. This study revealed, the COVID-19 pandemic has caused many Americans (68 percent) to delay healthcare treatment. It ranges from standard routine exams to important elective surgeries to ER visits – with physicians sharing concerns about the long-term impact of patients delaying care. The situation is expected to be no different in other countries of the world, including India.

Based on this finding Johnson & Johnson (J&J) have recently launched a US-based online initiative, aimed at giving both patients and physicians information and resources about health care options. This unique campaign has been named – “My Health Can’t Wait”.

By a statement J&J announced: “As the largest healthcare company in the world, we are committed to helping people live their healthiest lives, which means getting the care they need, when they need it.” It added: “Through My Health Can’t Wait, we hope to provide patients and healthcare providers with resources to help stay connected and prioritize their health care, both during this pandemic and in the future.” The point, especially take note of is, ‘both during this pandemic and in the future.’ This part of the above sentence of J&J, echoes the well-known management dictum – converting problem into opportunities, I add, even during the Covid pandemic.

I hope, many pharma players may also wish to pursue similar direction, responding to their own specific needs. But, not just to keep the head above water, in combating this unprecedented health crisis, but with a long-term strategic perspective – to rebuild the organization – for business excellence the new normal.

The concept reverberates:

I find the concept of ‘rebuilding the organization now, for business excellence the new normal’, reverberating in several expert voices. For example, The McKinsey ‘Briefing Note’ of September 16, 2020 – ‘COVID-19 and the great reset.’ It said: ‘The world anxiously awaits an effective COVID-19 vaccine that can be readily distributed. Until then, the priority is to re-energize organizations—to act rather than react. Even as the uncertainties of the COVID-19 crisis multiply, the goal must be to rebuild for the longer term.’

The authors emphasized, ‘a crisis has a way of bringing things to a head.’ Many believe, the coming months might be the best opportunity in memory for healthcare companies to pursue exponential innovation. This, according to McKinsey, ‘could create an additional $400 billion in value by 2025. And now is the time to claim the hundreds of billions of dollars that could be saved through productivity gains.’

Thus, I reckon, apart from creating a great business compulsion of working harder to neutralize the short-term operational constraints, Covid pandemic also provides a unique opportunity to pharma leadership. It gives a space for them for thinking long-term, and from a strategic perspective. The aim is to rebuild the organization, placing it at a higher trajectory for success, in an uncharted frontier, thus far.

Conclusion:

Meanwhile, as on September 27, 2020 morning, India had recorded a staggering figure of 5,992,532 of Coronavirus cases with 94,534 deaths. The virus’s unprecedented onslaught on the country still continues, unabated. Be that as it may, coming back to where I started from, I reckon, pharma companies, in general, could play a stellar role in converting the dual problems of uncertainties into a number of opportunities. In that process, they can create a win-win situation for all, in the health care space.

The uncertainties related to scientifically proven, safe and effective Covid drugs and vaccines will, hopefully, be addressed – sometime, by the scientists and medical researchers. However, as the above McKinsey paper wrote: ‘Until then, the priority is to re-energize organizations – to act rather than react. Even as the uncertainties of the COVID-19 crisis multiply, the goal must be to rebuild for the longer term.’ Thus, the second issue, needs to be creatively leveraged mostly by individual drug players, starting from now.

From this perspective, pharma leadership, will need to commit quality time of thinking people, supported by adequate resources, for conceiving and effectively implementing a ‘patient-centric’ strategy, that patients will fall for in the new normal. That being done, the top honchos, will require to roll up their sleeves to prioritize primary, secondary and tertiary action areas.

Instead of trying to do a little bit of everything, in all possible areas of Covid related changes in the market dynamics, ‘primary action areas’ ought to be the starting point, deploying all resources. And then, expand to the ‘secondary’ and ‘tertiary’ ones, in a well-calibrated manner. Evaluation of results and tightening the strategic loose knots, if any, should be an ongoing process. If implementation of the process requires handholding, so be it. Because, taming these two critical Covid related uncertainties, is intimately related to a sustainable growth for the pharma companies.

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.

 

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.

 

 

Cancer Cure: Inching Towards The ‘Holy Grail’?

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In a Press Conference on August 20, 2015, the 39th President of the United States, now 90-year-old  Jimmy Carter, revealed (video) that during a liver surgery earlier this month the doctors diagnosed that he has cancer. The type of cancer that he is suffering from is called melanoma, which has already spread to his liver and brain. Medical jargon would term it as deadly metastatic cancer.

Though the surgeons have removed the liver tumor, and well-targeted radiation treatment for four other small tumors in his brain has already been initiated, the original site of the melanoma, the lethal skin cancer, has reportedly not been found, as yet.

Mr. Carter’s medical treatment has started with an infusion of a new class of drug that uses the human immune system to fight cancer cells. The drug has been reported to work not only in advanced metastatic cancer, but also in the old age of patients. The former American President appears optimistic about the treatment outcomes with this new therapy, ‘placing his fate in the hands of God’, though initially he thought that he had just weeks to live.

I shall deliberate in this article, in an easy to understand language, though briefly, the promises offered by two latest options for cancer cure. One of these two, has just become available to patients and the other one, after an initial jaw-dropping success, is undergoing further tests in a renowned research laboratory of the United States.

Two novel pathways for cancer treatment:

Until recently, surgery, radiation and chemotherapy used to be the three common options for cancer treatment. One breakthrough option has just been launched and more in the offing.

In search of a cure for cancer, pathbreaking outcomes of medical research, especially in the following two areas, are significant:

A. Immunotherapy: It is a revolutionary approach to cancer treatment. The first of this novel class of drugs has just come to the market, with which Mr.Jimmy Carter is now reportedly being treated.

B. Re-programming cancer cells back to normal: Success has just been achieved in laboratory studies with this technique. It holds a strong promise to cure cancer, universally.

A. Immunotherapy:

On June 1, 2015, in an article titled, ‘Cure for terminal cancer’ found in game-changing drugs, “The Telegraph” – well-regarded international news daily, reported on anti-cancer immunotherapy drugs, as follows:

“Terminally ill cancer patients have been ‘effectively cured’ by a game-changing new class of drugs. In one trial, more than half of patients who had just months to live saw deadly tumors shrink or completely disappear.”

“In recent days, the results of trials of a number of treatments which harness the body’s immune system have been announced at the American Society of Clinical Oncology’s annual conference in Chicago. They show promise in the fight against skin cancer and lung disease.”

As we know, most of the cancers are deadly. All these grow and spread, as they manage to hide from the immune system, disguising the life-threatening danger. Thus, medical research scientists pondered that the human immune system could play a critical role in the fight against cancer and even cure, by harnessing its ability to fight the deadly disease, effectively and decisively.

To achieve this goal, this class of new cancer drugs work by allowing the body to recognize and attack cancer as any other harmful invader to the body. It effectively blocks a cellular pathway that hinders the ability of the human immune system to attack cancer cells.

At present, to treat different types of cancer, more number of immunotherapy drugs are undergoing clinical investigations.

Brilliant treatment outcomes, but not universal:

It has been reported, about one third of patients taking immunotherapy for the treatment of cancer experienced positive results. Those who responded to this therapy, showed immediate effect with their tumors shrinking or vanishing in a matter of weeks. As a result, the patients who had no more than weeks or months to live, just as former US President Jimmy Carter, have gone into remission for years and continuing with their normal lives.

It has also been reported, otherwise such patients could expect to live just nine months, if given standard treatment of cancer. Researchers said, they were hopeful that half of the patients responded to immunotherapy would end up “living disease-free”.

These drugs are expensive, costing roughly US$150,000 per year, which is a part of a different debate altogether.

Not a ‘magic bullet’:

Besides its high cost and outstanding quality of results, it is worth noting that immunotherapy is not a ‘magic bullet’ for all types of patients and in all cancer. It, therefore, throws a challenge for the oncologists to understand, why immunotherapy benefits only to some cancer patients, and who are those patients?

Moreover, there is a possibility of immunotherapy sending immune system of some patients to overdrive, precipitating auto-immune disorder that may attack also the healthy cells.

Thus, immunotherapy is not the ‘Holy Grail’ for the treatment of cancer, neither it is nowhere near a perfect drug for the treatment of all types of cancers in all patients.

Two key findings:

In this regard, two key findings of the researchers on immunotherapy are as follows:

  • Roughly around 15 to 20 percent of patients could experience shrinkage or remission of cancer
  • Half of the patients who responded found it lasting for at least six months

Thus, immunotherapy can at best be a cure for only some terminally ill cancer patients, mostly for some time, but not for all.

“In the hands of God”:

All these factors on immunotherapy probably would help us to understand, why an erudite person like Mr. Jimmy Carter said, though optimistic about the new treatment, he is placing his fate ‘in the hands of God’.

B. Re-programming cancer cells back to normal: 

The question, therefore, comes up now, if immunotherapy is not the ‘Holy Grail’ for cancer treatment that the research scientists have been intensively searching for, is there anything else coming up for cancer cure?

It appears so. A totally different approach to re-program the cancer cells back to normal has very recently been reported by Mayo Clinic’s Florida Campus in the United States. With this, cancer researchers’ dream of making the tumor cells morphing back to normal cells, they once were, would probably come true.

The research findings, published in Nature Cell Biology on August 24, 2015, represents ‘an unexpected new biology that provides the code, the software for turning off cancer,’ said the senior investigator of this study.

In the normal process, cells in the human body divide constantly to replace themselves and stop dividing when they have replicated sufficiently. However, unlike the normal cells, cancer cells do not stop dividing, they go out of control, leading to huge cell reproduction and tumor growth.

For the ultimate cure of cancer, scientists at Mayo Clinic have now reportedly succeeded in reversing the process responsible for the normal cells from replicating too quickly.

Possible cure now within sight?

This could ultimately lead to a newer class of breakthrough treatment that would be able to reverse cancerous growth in the human body, possibly curing cancer, without the need of surgery, chemotherapy, radiation or even immunotherapy.

Scientists at the Mayo Clinic have said that their initial experiments in some aggressive types of cancer are quite encouraging. They have successfully done this in very aggressive human cell lines from breast and bladder cancer.

Towards the ‘Holy Grail’:

In pursuit of finding a cancer cure, research scientists have been making commendable progress, over a period of time.

In the last few years, spectacular breakthroughs in treatment of cancer have been possible from the increasing genetic and biological understanding of the researchers, especially in ascertaining exact defects in the DNA code of human genes that cause cancer.

Ability to sequencing human genome has offered a key tool to the researchers to compare the DNA codes of cancerous and normal cells and identify the differences.

From within the 20,000 human genes, around 500 cancer genes have been reportedly discovered and are being catalogued. Clear understanding of what happens precisely when the cells divide uncontrollably and cancer spreads in different parts of the patients’ body, is taking place with commendable progress of various research initiatives in this area.

Based on the current knowledge on human genome, a number of new drugs have been and are being developed to target the cancer-causing genes with great accuracy. Such types of drugs are called ‘personalized medicines’, as these act on specific gene abnormality of patients related to certain types of cancer. Sophisticated laboratory tests facilitate treatment with ‘personalized medicines’. These are more effective with lesser side-effects, as compared to generally used anti-cancer drugs, prescribed to all cancer patients.

However, the question keeps lingering, ‘Is the Holy Grail for cancer cure has now come within sight?’

Conclusion:

Medical scientists continue to take rapid strides towards better and more effective treatment for cancer, if not cure, with fewer side-effects.

Claims for long remissions with immunotherapy, are being reported for some patients with even metastatic cancer and also in old age, just like former President of America – Mr. Jimmy Carter.

The success achieved by the scientists of ‘Mayo Clinic’ in re-programming rogue cancer cells back to normal, is stunning.

Being successful in this effort, the researchers have compared cancer with a complex software program of life. When it goes out of control, ‘instead of the code for normal cells, a code for making abnormal cells is executed’. This new study signals a strong possibility of bringing the cancer cells back to normal.

Medical experts keep their fingers crossed. Although, some of them do apprehend that there may never be a single ‘Magic Bullet’ to cure all types of cancer in all patients. This is mainly because cancer involves a large number of different disease areas, such as, breast, lung, bowel, prostate, blood and so on.

But hope refuses to fade out, as science continues to keep unravelling spectacular breakthroughs in this direction, at a fairly brisk pace. All these researches may be cancer types or patient types specifics, but the progress is taking place in the right direction.

Even in the ‘Mayo Clinic study’, scientists have been, so far, successful in re-programming the breast and bladder cancer cells back to normal, though they believe that this success sends a strong signal of an “early and somewhat universal event in cancer.”

Immunotherapy is undoubtedly a path breaking step that ensures cure in some types of cancer and in some categories of patients. However, if re-programming the cancer cells back to normal, eventually becomes an ‘universal event’ in the treatment of this generally frightening disease, no doubt, the medical science is now slowly but surely inching towards the ‘Holy Grail’ for cancer cure…at long last.

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.

Encourage vaccine research and improve its access to demonstrate ‘prevention is better than cure’

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Vaccines are one of the most successful and cost-effective public health interventions, which help preventing over 2 million deaths every year.

The World Health Organization (WHO) defines vaccines as:

“A vaccine is any preparation intended to produce immunity to a disease by stimulating the production of antibodies. Vaccines include, for example, suspensions of killed or attenuated microorganisms, or products or derivatives of microorganisms. The most common method of administering vaccines is by injection, but some are given by mouth or nasal spray.”

Types of Vaccines:

As per the ‘National Institute of Health (NIH)’ of USA, following are some types of vaccines that researchers usually work on:

  • Live, attenuated vaccines
  • Inactivated vaccines
  • Subunit vaccines
  • Toxoid vaccines
  • Conjugate vaccines
  • DNA vaccines
  • Recombinant vector vaccines

The first vaccine:

In 1796, Edward Anthony Jenner not only discovered the process of vaccination, alongside developed the first vaccine of the world for mankind – smallpox vaccine. To develop this vaccine Jenner acted upon the observation that milkmaids who caught the cowpox virus did not catch smallpox.

As per published data prior to his discovery the mortality rate for smallpox was as high as up to 35%. Thus, Jenner is very often referred to as the “Father of Immunology”, whose pioneering work has “saved more lives than the work of any other person.”

Later on in 1901 Emil Von Behring received the first Nobel Prize (ever) for discovering Diphtheria serum therapy.

The future scope of vaccines:

The future scope of vaccines is immense as several potentially preventable diseases, as indicated below remain still unaddressed.

Examples of effective Vaccines Examples of Potentially VaccineTreatable Diseases
Bacterial
  • Diphtheria
  • Haemophilus influenza type B
  • Meningitis A, C
  • Pneumococcus
  • Enterococcus
  • Meningitis B, W, Y
  • Group A Streptococcus
  • Staphylococcus
Viral
  • Varicella
  • Hepatitis B and C
  • Influenza
  • Polio
  • Pandemic influenza
  • RSV
  • West Nile Virus
  • Epstein Barr Virus
Other
  • Cancer
  • Alzheimer’s disease
  • Substance abuse
  • Autoimmune disorders

Source: Deutsche Bank Report 

Expanded focus for vaccines:

The focus of the global vaccine industry also has been expanded from prophylactic vaccination for communicable disease (e.g. DTP vaccine) to therapeutic vaccines (e.g. Anti-cancer vaccines) and then possibly non-communicable disease vaccines (e.g. vaccines for coronary artery disease).

The Issues and Challenges:

To produce a safe and effective marketable vaccine, it takes reportedly around 12 to 15 years of painstaking research and development process involving an investment ranging between US $500 million and over $1 billion dollars (Ibid, 7).

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% of the production costs for 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 be required mostly 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. As a result, the key issue for developing a right type of newer vaccine will continue to be a matter of pure economics.

A great initiative called GAVI: 

Around 23 million children of the developing countries are still denied of important and life-saving vaccines, which otherwise come rather easily to the children of the developed nations of the world.

To resolve this inequity in January 2000, the Global Alliance for Vaccines and Immunization (GAVI) was formed. This initiative was mainly aimed at generating sufficient fund to ensure availability of vaccines for children living in the 70 poorest countries of the world.

The GAVI Alliance has been instrumental in improving access to six common infant vaccines, including those for hepatitis B and yellow fever. GAVI is also working to introduce pneumococcal, rotavirus, human papilloma virus, meningococcal, rubella and typhoid vaccines in not too distant future.

A recent example:

As if to vindicate the above points, Reuters on December 16, 2011 reported that  “Pfizer and GlaxoSmithKline are increasing sales of cut-price pneumonia vaccine to developing countries by more than 50 percent, marking the scale-up of an international program to protect millions of children.

GAVI is buying an additional 180 million doses of Pfizer’s pneumococcal vaccine Prevenar 13 and a similar quantity of GSK’s Synflorix at a deeply discounted price of US $3.50 a shot.”

Success with vaccines in disease prevention:

Diphtheria incidence in the US  – Mortality 5/10,000 cases Peak Incidence (1921) Incidence today

2,06,939

1

 

Tetanus incidence in the US – Mortality 3/10 cases Peak Incidence (1927) Incidence today

1,314

40

 

H. Influenza type B incidence in the US – Mortality 2-3/100 cases Peak Incidence (1927) Incidence today

20,000

363

Source: Ehreth Vaccine 21:4105-4117

Development of vaccines through the passage of time:

No. of vaccines

Year

Vaccines
1. 1780-1800

Smallpox

(first vaccine for any disease)
2. 1860-1880

Cholera
1880-1900

Rabies
6.

Tetanus

Typhoid fever

Bubonic plague
11 1920-1940

Diphtheria

Pertussis

Tuberculosis

Yellow fever

Typhus
16 1940-1960

Influenza

Polio

Japanese encephalitis

Anthrax

Adenovirus-4 and 7
24 1960-1980

Oral polio

Measles

Mumps

Rubella

Chicken pox

Pneumonia

Meningitis

Hepatitis B
28 1980-2000

Haemophilus influenzae type b

Hepatitis A

Lyme disease

Rotavirus
29 2000-2010

Human papilloma virus

Current trend in vaccine development:

Malarial Vaccine:

Reuters on December 20, 2011 reported that an experimental malaria vaccine has been developed by the British scientists, which has the potential to neutralize all strains of the most deadly species of malaria parasite.

In October 2011, the data published for a large clinical trial conducted in Africa by GlaxoSmithKline on their experimental malaria vaccine revealed that the risk of children getting malaria had halved with this vaccine. Reuters also reported that other teams of researchers around the world are now working on different approaches to develop a malaria vaccine.

Tuberculosis vaccines:

On August 11, 2011, Aeras and the Oxford-Emergent Tuberculosis Consortium (OETC) announced with a ‘Press Release’ the commencement of a Phase IIb ‘proof-of-concept efficacy trial’ of a new investigational tuberculosis (TB) vaccine. OETC indicated that clinical trial for the drug will be undertaken by them in Senegal and South Africa with primary funding support from the European and Developing Countries Clinical Trials Partnership (EDCTP).

Cancer vaccines:

Cancer vaccines are, in fact, biological response modifiers, which work by stimulating or restoring the ability of the immune system to fight the disease. There are two broad types of cancer vaccines:

  • Preventive vaccines:  To prevent cancer in healthy people
  • Therapeutic vaccines:  To treat cancer by strengthening the natural defense mechanism of the human body against the disease.

The United States Food and Drug Administration (US-FDA) has approved the following cancer vaccines, which protect against two types of HPV that cause approximately 70% of all cases of cervical cancer globally:

  • Gardasil of Merck & Company
  • Cervarix of  GlaxoSmithKline

The US FDA has also approved a cancer preventive vaccine that protects against HBV infection, which can cause liver cancer. It has been reported that the original HBV vaccine was approved in 1981 and currently most children in the US are vaccinated against HBV after their birth.

In addition, the US regulator has also approved a cancer vaccine for treatment of certain types of metastatic prostate cancer.

HIV Vaccines:

‘The AIDS Vaccine 2011 conference’ held in Bangkok in the month of September, 2011 discussed some of the latest findings on the following two vaccines for prevention and control of HIV disease progression:

  • A large trial of RV 144 vaccine in Thailand demonstrated the proof of concept that a preventive vaccine with a risk reduction of 31% could effectively work.  The trial was supported by the World Health Organization (WHO) and UNAIDS.
  • Bionor Pharma announced that clinical trial participants who received Vacc-4x “experienced a 70% viral load decrease relative to their level before starting Anti-Retroviral Therapy (ART), compared with no notable reduction among placebo recipients.”

Promising ‘Therapeutic Vaccines’ undergoing clinical trial:

‘FierceVaccines’ in its October 27, 2011 reported the following 10 most promising therapeutic vaccines, which are now undergoing clinical trials on humans:

Molecule Company Indication
ICT-107 ImmunoCellular Therapeutics Glioblastoma
VGX-3100 Inovio Pharmaceuticals Cervical cancer
MAGE-A3 GlaxoSmithKline Skin, lung cancer
Neu-Vax RXi Pharmaceuticals Breast cancer
AE37 Antigen Express Breast cancer
NexVax2 ImmusanT Celiac disease
ADXS-HPV Advaxis Cervical, head and neck cancer
CRS-207 Aduro BioTech Pancreatic cancer
PEV7 Pevion Biotech Recurrent vulvovaginal candidiasis
GI-4000 GlobeImmune Pancreatic cancer

Future scope for cancer vaccines:

One school of scientists firmly believes that out of all cancers diagnosed each year globally, various types of microbes contribute 15% to 25% as a causative factor for this dreaded disease, as indicated below:

Infectious Agents

Type of Organism

Associated Cancers
Hepatitis B virus (HBV)

Virus

 Hepatocellular carcinoma(a type of liver cancer)
Hepatitis C virus (HCV)

Virus

 Hepatocellular carcinoma(a type of liver cancer)
Human papilloma virus (HPV) types 16 and 18, as well as other HPV types

Virus

 Cervical cancer; vaginal cancer;vulvar cancer; oropharyngeal cancer(cancers of the base of the tongue,

tonsils, or upper throat);

anal cancer; penile cancer;

squamous cell carcinoma of the skin
Epstein-Barr virus

Virus

 Cancer of the upper part ofthe throat behind the nose
Human herpes virus 8 (HHV8)

Virus

 Kaposi sarcoma
Human T-cell lymphotropic virus

Virus

 Adult T-cell leukemia/lymphoma
Helicobacter pylori

Bacterium

 Stomach cancer
Schistosomes

Parasite

 Bladder cancer
Liver flukes

Parasite

 Cholangio carcinoma(a type of liver cancer)

Source: The International Agency for Research on Cancer (IARC)

These findings open the doors of unique opportunities to develop both preventive and therapeutic vaccines to address the life threatening near fatal ailment of mankind – cancer.

Conclusion:

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.

To effectively focus on all important disease prevention initiatives, there is also a need to build a vibrant vaccine business sector in India. To achieve these dual objectives the government should create an enabling ecosystem for the vaccine manufacturers, academics and the government funded vaccine R&D centers to concentrate more with the relevant vaccine development projects ensuring a decent return on investments, for long term public health interest.

More often than not, the above 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, working out a decent return on investments. This critical issue needs to be appropriately and urgently addressed by the Government to make the disease prevention initiatives in the country sustainable, demonstrating to all concerned that disease ‘prevention is better than cure’.

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.

‘Prevention is better than cure’: Such a healthcare policy focus could effectively reduce the disease burden in India

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First National Health Policy was passed by the Parliament of India in 1983 and was last updated in 2002. How much of the policy intent has seen the light of the day is anybody’s guess.
Healthcare issues are not being effectively addressed:
Even after six decades of independence only one in three Indians has access to basic sanitation facility like toilets, exposing a large number of population to various types of ailments. World Health Organization (WHO) reports that around 9 lakh Indians die every year breathing polluted air and drinking contaminated water. Maternal mortality rate is the highest in India. Almost half of the children in our country are grossly underweight and this phenomenon is growing at a rate which is nearly double the rate of even Sub-Saharan Africa. One third of the world’s tuberculosis patients live in India. It is indeed an irony that even today India belongs to one of those four countries of the world where polio has not been successfully eradicated, as yet.

Increasing incidences of chronic ailments are exerting further pressure on the disease burden:

Along with diseases originating due to poor hygienic conditions and life style, new challenges are coming up with rapid emergence of non-infectious chronic diseases like, diabetic, cardiovascular and psychosomatic disorders.

Chronic diseases could soon become the most critical issue in the Indian healthcare system, if these are not prevented and successfully managed. It has been reported that population suffering from, for example, diabetes could generate health care costs which are almost double of those without this ailment.

All these factors together are leading to an abnormally high disease burden in the country where very unfortunately over 65% of the population are not having access to modern medicines, either due to lack of infrastructural facilities or the people just cannot afford the basic costs of healthcare.

Most of the diseases are preventable:

Many of these chronic ailments ascribe to common preventable risk factors. Poor hygienic conditions, unhealthy nutrition, lack of proper physical activity, alcohol and tobacco abuse are the major risk factors for these diseases. An integrated approach towards disease prevention, though challenging for the nation, is the need of the hour. It is a pity that our healthcare systems do not support this process. India as a whole carries an abysmally poor track record for a well thought out and structured healthcare promotion and disease prevention policies and strategies.

Indian healthcare system is highly skewed towards disease treatment rather than disease prevention:

Current healthcare systems of India, which offer access to modern medicines just to 35% of the population, are aimed mostly towards responding to urgent needs of patients.

Relieving symptoms of the disease with an expectation of curing the ailment are the basic pattern of healthcare in our country, wherever it is available and in whatever scales and proportion. Preventive health care is quite different from the above approach.

Australia has shown a way:

Australian National Health and Hospitals Reforms Commission report titled, “A healthier future for all Australians”, published in July 2009 recommends the establishment of an independent National Health Promotion and Prevention Agency, with a significant budget for creating a robust evidence base to find out what exactly works in prevention of a disease. Like for example , the report highlights “comparison of the relative efficacy of a medical intervention (gastric bypass), a pharmaceutical intervention (an anti-obesity drug), an allied health intervention (an exercise and diet program) and a population health intervention ( a community walking program) in reducing obesity.”

The report clearly articulates that just collecting evidence on prevention will not be enough; disease prevention should be put on the same footing as the treatment of the disease.

Are we listening?

The way forward in India:

As many diseases are preventable, every interaction with a healthcare professional should include advice and follow-up on the preventive measures. When with an integrated and systematic approach, patients will be provided with information and practices to reduce health risks, it is quite likely that they will then try to maintain a healthy and hygienic life style with regular exercise, drinking safe water, eating healthy food which they can afford, practicing safe sex, avoiding tobacco and alcohol abuse.

Such integrated and systematic preventive healthcare measures can significantly help reducing the disease burden of individuals and families, besides improving vastly the quality of life. To promote prevention in healthcare, the very basic requirement is the change in mindset of both the policy makers and the civil society. A collaborative or partnership approach involving all concerned to create mass awareness is absolutely essential to ensure commitment of the common man towards such an important healthcare initiative.

Important areas for action:

• Effective use of persuasive communication tools to establish that preventive health care can help avoiding expensive disease burden and improve quality of life

• Mass awareness and demonstration program to help creating a positive attitude and required skill sets in disease prevention activities within the community

• Motivate healthcare professionals to make prevention an integral part of every interaction with the patients

• Medical insurance and healthcare policies to offer adequate incentives for preventive healthcare through innovative means

What the government of India is doing towards preventive healthcare:

The Planning Commission of India reports as follows:

• Health education for primary and secondary prevention of Non Communicable Diseases (NCDs) through mobilization of community action

• Development of treatment protocols for education and training of physicians in the prevention and management of NCDs

• Research support for: Multi-sectoral population-based interventions to reduce risk factors

• Explanation of the role of nutrition and lifestyle-related factors

• The development of cost effective interventions at each level of care.

All these are very appreciable statements of intent. However, how much of these intents are getting translated into reality will be very difficult fathom by the common mortals.

Conclusions:

Most of the serious types of ailments of a vast majority of the population of India can be prevented and the disease related complications can be effectively avoided, if we all have a will to do that. Can we take a leaf out of the formation of “National Health Promotion and Prevention Agency” in Australia?

Healthcare costs of the nation and utilization of its scarce resource can be successfully optimized by properly focusing on disease prevention related activities. In my view, effective measures towards preventive healthcare can quite efficiently address many pressing healthcare issues of the nation.

By Tapan 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.