‘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,...............

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Pharma R&D: Chasing A Rainbow to Replicate The Past

Pharma R&D: Chasing A Rainbow to Replicate The Past

Would future be always a replica of the past?

If the response is yes, the efforts of many global pharma players to replicate the successful Research and Development (R&D) models of long gone by days, would continue to be a grand success. The new drug pipeline would remain rich and sustainable. R&D costs would be increasingly more productive, with the rapid and more frequent churning out of blockbuster drugs, in various therapy areas.

However, an affirmative response to this question, if any, has to be necessarily supported by relevant credible data from independent sources.

Additionally, yet another equally critical query would surface. Why then the prices of newer innovative drugs have started going through the roof, with the rapid escalation of R&D expenses?

Thus, there is a need to ponder whether the continued hard effort by many large innovator companies in this direction is yielding the desired results or not.

In this article, I shall try to dwell on this issue with the most recent data available with us.

A new research report:                

A new research report of the Deloitte Center for Health Solutions titled, “Measuring the return from pharmaceutical innovation 2015: Transforming R&D returns in uncertain times” states that the R&D returns of major life sciences industry groups have fallen to their lowest point in 2015, since 2010. The report tracked and reviewed the estimated returns of 12 leading global life sciences companies.

Some of the data presented in this report would give an idea about the magnitude of current challenges in this space. Nevertheless, there could be a few rare and sporadic green shoots, which can also be cited to claim a revival in this area.

I am quoting below some key pharma R&D trends, for the period starting from 2010 to 2015, as illustrated in the Deloitte report:                      

A. Declining R&D productivity: 

Year	R&D return (%)
2010	10.1
2011	7.6
2012	7.3
2013	4.8
2014	5.5
2015	4.2

B. Increasing drug development cost with decreasing estimated sales:

During 2010 to 2015 period, the average peak sales estimate per drug has fallen by 50 percent from US$ 816 million to US$416 million per year, while the development costs per drug, during the same period increased by 33 percent, from US$ 1.188 billion to US$ 1.576 billion.

C.  Smaller Companies showing better R&D productivity:

Between 2013-2015, relatively smaller companies showed better R&D productivity as follows:

• Big companies: 5 percent
• Mid to large cap companies: 17 percent

D. External innovation becoming increasingly more important:             

Again, mid to large cap companies opting for more external innovation are showing a higher proportion of late stage pipeline value, as below:

• Big companies: 54 percent
• Mid to large cap companies: 79 percent

A fear of failure?

The Deloitte report throws some light on the general stakeholders’ concerns about the exorbitantly high price fixation for innovative new drugs by the concerned companies, together with consequential macroeconomic pressures.

One of the key suggestions made in this report, is to increase the focus on reduction of R&D costs, while accelerating the new drug development timelines. I shall broach upon this point briefly just in a short while.

However, the stark reality today, the hard efforts still being made by many large global drug companies to almost replicate the old paradigm of highly productive pharma R&D, though with some tweaking here or there, are not yielding expected results. The return on R&D investments is sharply going south, as the new drug prices rocketing towards north.

Is it happening due to a paralyzing fear of failure, that moving out of the known and the traditional sphere of the new drug discovery models could impact the stock markets adversely, making the concerned CEOs operational environment too hot to bear?

Be that as it may, without venturing into the uncharted frontiers of the new drug discovery models, would it at all be possible to bring out such drugs at a reasonable affordable price to the patients, ever?

I have deliberated before, in this blog, some of the possible eclectic ways in this area, including in one of my very recent articles on January 4, 2016 titled, “2015: Pharma Industry Achieved Some, Could Achieve Some More”.

New innovative drugs evaluated over priced: 

Here, I would not quote the prices of Sovaldi and its ilk, which are known to many. I intend to give examples of just two other new drugs that have triggered significant interest as potential advances for the care of patients in two common disease areas, namely, asthma and diabetes. These two drugs are GlaxoSmithKline’s Nucala® (Mepolizumab) for Asthma and Novo Nordisk’s Tresiba® (Insulin Degludec) for Diabetes.

According a December 21, 2015 report of the ‘Institute for Clinical and Economic Review (ICER)’ of the United States:

“The annual price of mepolizumab would need to be discounted 63-76% to be better aligned with value to patients and the health system, while insulin degludec would need to be discounted less than 10% to do so.”

Thus, there has been a growing mismatch between the value that new innovative drugs, in general, offers to the patients and the price that the innovator companies fix for such drugs. This trend, if continues, would significantly limit patients’ access to new drugs, as the pharma players keep chasing disproportionately high profitability to increase their shareholder value.

External sourcing of R&D may not make new drugs affordable:

Taking a cue from the highly successful strategy of Gilead, especially what it has done with Sovaldi and Harvoni, if other major global pharma players’ also try to enrich their late stage new drug molecule pipeline from external sources, would that effectively resolve the core issue? 

In my view, this could possibly be one of the ways to contain R&D expenses and with much lesser risk, as suggested in the Deloitte report. However, I doubt, whether the same would effectively help bringing down the prices of newer innovative drugs, in tandem.

This is primarily because of the following contemporary example, that we now have with us.

Although the active compound that is used to manufacture Sovaldi, or for that matter even Harvoni, is not Gilead’s in-house discovery, the prices of these drugs have already gone through the roof. 

It is altogether a different matter that robust patent laws along with the Government vigilance on obnoxious drug pricing is gradually increasing in various countries. Some developed and developing markets of the world, including the Unites States and the United Kingdom, either already have or are now mulling for an effective counter check to irresponsible drug pricing, primarily by putting the ‘innovation’ bogey right at the very front.

In India, prompted by its robust patent law and to avoid any possibility of Compulsory Licensing (CL), Gilead ultimately decided to give Voluntary Licenses (CL) for Sovaldi to several Indian drug companies. These pharma players will manufacture the drug in India and market it in the country at a much lesser price.

A new cooperative effort for cancer drugs:

On January 11 2016, ‘The New York Times’ reported the formation of ‘National Immunotherapy Coalition (NIC)’. This is a cooperative effort by some leading global pharma companies to speed up the testing of new types of cancer drugs that harness the body’s immune system to battle tumors. The NIC will try to rapidly test various combinations of such drugs.

This is important, as many researchers believe that combinations of two or more drugs that engage different parts of the immune system might be effective for more patients than a single drug............

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