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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.

Two Paintings on the Same Canvas: ‘Truth About Drug Companies’ and ‘Protecting Access to Medicines’

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As the saying goes, “Great people think alike”, many thought leaders of very high credibility across the globe, seem to think almost in similar lines when it comes to improving access to medicines for a large section of the global population.

In this article, I shall briefly focus on two such instances, both revolving around the same centerpiece – one from India and the other from the land of ‘pharmaceutical innovation’ – America.

An interesting article written recently by the well-regarded Indian expert of global stature Dr. K. Srinath Reddy, President, Public Health Foundation of India (PHFI), reiterates emphatically,  “India must protect access to medicine”.

In a more focused context related to EU-FTA, the author wrote about possible adverse impact of more stringent product patent and regulatory data protection related issues on access to generic medicines in India and other developing countries. Thus, he argued that EU-FTA should be well negotiated by India and cautioned as  follows:

“It must be remembered that India needs to protect its vital interests in any trade agreement, just as other nations strive to. Our interest lies in protecting the lives and safeguarding the health of Indians, without permitting unreasonable restrictions on our ability to produce, use and even export, generic versions of drugs the patents of which have lapsed (or where compulsory licensing has been invoked to protect public health).

India needs to tread carefully while negotiating the FTA with the EU, so that the health of the Indian people is not compromised through provisions that shackle our generic drug industry.”

The debate has assumed a global dimension:

Such raging debates on a critical public health issue, like access to medicines, are also taking place in many other countries, as I write, including America, irrespective of the fact whether these are generic or patented drugs.

Marcia Angell, M.D, a faculty of Harvard Medical School and a former Editor in Chief of the world’s leading medical journal ‘The New England Journal of Medicine’ wrote an interesting book.

In this book titled “The Truth About the Drug Companies: ‪How They Deceive Us and What to Do About It”, she makes many interesting comments on the American pharmaceutical industry on access to medicines and the kind of pharmaceutical innovations that they are involved in.

The world noticed it:

This book arrested global attention and was extensively reviewed. Since, the author wrote more specifically about the American pharmaceutical industry, following are some excerpts quoted from her book reviews in the USA:

New York Times: “A scorching indictment of drug companies and their research and business practices…tough, persuasive and troubling.”

Boston Globe: “A sober, clear-eyed attack on the excesses of Drug Company power…a lucid, persuasive, and highly important book.”

Washington Post: “Always authoritative…[this book] delivers the message—that drug-company money and power is corrupting American medicine—in a convincing, no-nonsense manner.”

Some key issues raised in the book:

Like the above article of Dr. Reddy, here also the author raises some interesting issues related to the American drug companies. I am penning below some of those issues exactly as expressed by the author (verbatim):

  • “The magic words, repeated over and over like an incantation, are research, innovation, and American. Research. Innovation. American. It makes a great story.”
  • “R&D is a relatively small part of the budgets of the big drug companies—dwarfed by their vast expenditures on marketing and administration, and smaller even than profits.”
  • “The great majority of ‘new’ drugs are not new at all but merely variations of older drugs already on the market. These are called ‘me-too’ drugs.”
  • “If I’m a manufacturer and I can change one molecule and get another twenty years of patent rights, and convince physicians to prescribe and consumers to demand the next form of Prilosec, or weekly Prozac instead of daily Prozac, just as my patent expires, then why would I be spending money on a lot less certain endeavor, which is looking for brand-new drugs?”
  • “Over the past two decades the pharmaceutical industry has moved very far from its original high purpose of discovering and producing useful new drugs. Now primarily a marketing machine to sell drugs of dubious benefit, this industry uses its wealth and power to co-opt every institution that might stand in its way, including the US Congress, the FDA, academic medical centers, and the medical profession itself. (Most of its marketing efforts are focused on influencing doctors, since they must write the prescriptions.)”
  • “Now universities, where most NIH-sponsored work is carried out, can patent and license their discoveries, and charge royalties. Similar legislation permitted the NIH itself to enter into deals with drug companies that would directly transfer NIH discoveries to industry.”
  • “Many medical schools and teaching hospitals set up “technology transfer” offices to help in this activity and capitalize on faculty discoveries. As the entrepreneurial spirit grew during the 1990s, medical school faculty entered into other lucrative financial arrangements with drug companies, as did their parent institutions.”
  • “One of the results has been a growing pro-industry bias in medical research—exactly where such bias doesn’t belong.”
  • “In the 1990s, Congress enacted other laws that further increased the patent life of brand-name drugs. Drug companies now employ small armies of lawyers to milk these laws for all they’re worth—and they’re worth a lot. The result is that the effective patent life of brand-name drugs increased from about eight years in 1980 to about fourteen years in 2000.”
  • “The biggest single item in the budget is neither R&D nor even profits but something usually called ‘marketing and administration – a name that varies slightly from company to company.”
  • “The industry is fighting these efforts—mainly with its legions of lobbyists and lawyers. It fought the state of Maine all the way to the US Supreme Court, which in 2003 upheld Maine’s right to bargain with drug companies for lower prices, while leaving open the details. But that war has just begun, and it promises to go on for years and get very ugly.”
  • “The fact that Americans pay much more for prescription drugs than Europeans and Canadians is now widely known.”
  • “There are very few drugs in the pipeline ready to take the place of blockbusters going off patent. In fact, that is the biggest problem facing the industry today, and its darkest secret. All the public relations about innovation is meant to obscure precisely this fact.”
  • “Of the 78 drugs approved by the FDA in 2002, only 17 contained new active ingredients, and only seven of these were classified by the FDA as improvements over older drugs.”
  • “While there is no doubt that genetic discoveries will lead to treatments, the fact remains that it will probably be years before the basic research pays off with new drugs. In the meantime, the once-solid foundations of the big pharma colossus are shaking.”
  • “Clearly, the pharmaceutical industry is due for fundamental reform. Reform will have to extend beyond the industry to the agencies and institutions it has co-opted, including the FDA and the medical profession and its teaching centers.”
  • “The me-too market would collapse virtually overnight if the FDA made approval of new drugs contingent on their being better in some important way than older drugs already on the market.”
  • “A second important reform would be to require drug companies to open their books. Drug companies reveal very little about the most crucial aspects of their business.”
  • “But the one thing legislators need more than campaign contributions is votes. That is why citizens should know what is really going on. Contrary to the industry’s public relations, they don’t get what they pay for. The fact is that this industry is taking us for a ride, and there will be no real reform without an aroused and determined public to make it happen.”

An opposite view:

On this an article in Forbes Magazine commented as follows:

“The problem with Angell’s arguments is that they are rife with inaccuracies and fallacies. Furthermore, she makes no accounting for changes in the industry that have occurred over the last decade.”

“It is time for those in the medical profession to spur a more truthful and factual discussion about the pharmaceutical industry and its role in the discovery and development of new medicines. The pharmaceutical industry is a key player in the evolution of healthcare and this needs to be recognized if the industry is to operate effectively.”

Conclusion:

One of the key counter arguments that very often comes up in this area, including in India is, the protection of Intellectual Property Rights (IPR) is the responsibility of the Government concerned at any cost, even if such protective measures severely restrict access to these drugs to a large population of the society across the globe, due to ‘affordability’ considerations.

It is also claimed that, to come out with innovative medicines, large pharmaceutical companies invest a huge amount of money and time towards R&D related activities.

Thus, the global innovator companies, by and large, with a few exceptions though, believe that stricter enforcement of stringent patent laws by the Governments is the only answer to foster innovation within the industry. Such stringent measures, as they argue, will help them keep investing in R&D to meet the ‘unmet needs’ of patients on a continuous basis.

However, as we have seen above, many experts, like Harvard faculty Marcia Angell and Dr. K. Srinath Reddy have strong and quite different view points. It is certain that the debate on access to affordable medicines is not going to die down, at least any time soon.

Despite all these, it is not difficult, I reckon, to identify an emerging but a clear trend indicating, the priority of the Governments to protect public health interest in the longer term, will ultimately prevail in most parts of the world, including India.

Consequently, the world will probably witness more and more new government policies and legal frameworks in this area striking a right balance between improving access to medicines and fostering innovation, as the countries move on.

That said, taking note of the above two paintings, as it were, painted on the same canvas of ‘improving access to medicines for all’, is it not amazing to note a striking similarity in the thought pattern between two highly credible and independent think tanks, belonging to the oldest and largest democracies of the planet earth, to ensure affordable medicines for all?

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.