Showing posts with label drug discovery. Show all posts
Showing posts with label drug discovery. Show all posts

Wednesday, March 28, 2012

Market Access : Clearing the ambiguity

I must admit that during the first few months of my MSc, I was quite confused about the term "Market Access". I did know it was synonymous with translating one's skills as a health economist into practice, particularly in an industry sponsored role, but it was quite difficult to come by a definitive synopsis of what it is one actually does. What are the specific tasks and activities one is involved in? What level of complexity is involved? What skills does one need to possess? So here is my attempt at dissemination, clarification, & education. I hope it is useful to those considering it as a career and for the layperson who has mistaken it (& me) to be some sort of pharma lobbyist !

The concept of market access (in healthcare) is fundamentally similar to that in other sectors - Introduction to, and uptake by the market, of a new product offering improved value or competition to the current alternative(s). However it is the execution of this strategy which varies substantially (and requires some specialist skills). Some key questions which pose challenges - How to obtain information about target population? Which parameters of efficacy, safety, effectiveness do we measure? What competitive edge does the product hold? How to demonstrate overrall value ( to both payer & consumer)? How to negotiate in a highly restrictive regulatory environment?

Because drug development is an incredibly long process, answering these questions requires collecting data and its analysis at various stages of the products life cycle. To this effect, planning the coordination and sequential timing of activities is a core deliverable in a MA role. Pre-approval, during the clinical trial 1-3 phases, the objectives are largely to incorporate MA issues during development to create the "value proposition" and to gather data in support of  or informing product-specific decision making by upper management (i.e. invest vs disinvest, study types, trial population, approval/reimbursement strategy etc). During the phase 1/2 stage the HE/MA activities tend to focus on analysis of the disease area and associated pricing research. This includes conducting cost-of-illness studies, mapping studies, literature & systematic reviews (on outcomes/competitors disease management/policies as per discretion), and possibly even observational studies. On the pricing side, research efforts tend to be focused on assessing the payer landscape and price anchoring, providing an initial insight into the likelihood of reimbursability. Additional activities at this stage may include development of an early cost-effectiveness study, conceptual model, and patient reported outcomes (PRO) tools.

The value story of a drug starts taking shape during Phase 3 / pre-launch stage. Adjacent to maintaining up-to-date knowledge, desk research activities can now become a lot more focused on local issues and populations, and the process of dissemination through publications and scientific stakeholder or key opinion leader management begins to be emphasized. Increased use of piggy-back CE studies means that it is not uncommon to find a formal economic analysis and PRO analysis being conducted at this stage in preparation for a health technology assessment (HTA).  On the P&R front, price sensitivity studies, sequence & strategy analysis, and risk evaluations are just some of the acitivities.

Input from the MA unit is especially essential during the post approval & launch stage of the products life.  The objective now is to demonstrate the products value to payers and secure reimbursement status on formulary lists. This is most commonly done by providing the necessary evidence and data to either government agencies or independent bodies for them to conduct an HTA. A positive HTA recommendation can go a long way towards determining the success of a drug, as evidenced by the recommendations of NICE (England), SMC (Scotland), CADTH (Canada) to name a few. These dossiers need to not only present clinical evidence data, but also evidence on cost-effectiveness, comparative effectiveness and increasingly, PRO data. Since requirements can vary across geographical jurisductions, local adaptation of dossiers can be a labour intensive process. The pricing life cycle is also largely determined at this stage, as risk sharing agreements and payer negotiations occur. Reaching consensus at the optimal price - which is largely an acceptable ROI for both the manufacturer & payer - could be considered the key outcome. With eventual entry and possible acceptance of the drug, the MA professional has the on-going responsibility of collecting relevant real life effectiveness data to increase product value (and bargaining power), and updating dossiers in anticipation of HTA re-evaluation.

This is by no means an exhaustive list of activities pertainining to MA. Job descriptions can indeed vary depending on organizational capacity, and there are many soft deliverables such as scientific lobbying, patient advocacy, competitive intelligence and management of HTA decisions which need to be incorporated at various stages. However, I hope this article better illustrates the complexity and dynamic nature of MA in healthcare. If I am missing something please feel free to comment and add. I am sure input from working professionals would indeed be invaluable to newcomers in the field.



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Wednesday, January 13, 2010

Another Annual Report



Recently, I was sent an Annual Review conducted by Citeline Intelligence Solutions. This concise report offers readers a brief summation of pharmaceutical R&D trends and an analysis of industry wide product development strategies and clinical trial success rates. There were not too many talking points amongst the majority of findings presented, however there was the odd statistic that buckled recent trends & a couple of surprise ones that I could not have predicted. Following is a rapid-fire synopsis of their findings:

* A total of 9605 drugs in active development for 2008, a 4.3% increase from the previous year.
* An above average 32 market entrants (New Active Substances) globally, although none of them seem to be really big sellers.
* The US remains the premier market with 15 of 32 debuts.
* Six new biotech product launches for the year.
* In 2007, anticancer drugs accounted for a third of the total launches. In 2008? Despite oncology being the biggest area of R&D, the grand total is a big Zero!
* CNS, the next big R&D area also had a laggardly year with 3 new drugs (but none first in class).
* Cardiovascular & Blood/Clotting disorder drugs had the greatest success with 10 new market entrants. Gastrointestinal drugs come in second with 5 product launches.
* Innovation levels remained discouragingly low with only 1 new market entrant for HIV/AIDS and 2 new anti-infectives.
* At the clinical stage, virtually the entire 4.3% increase in drug candidates is at the preclinical stage. The trends for post-preclinical phases remain flat, with a modest 2.6% increase at Phase II being the only noteworthy statistic.


* More disturbing is the decrease in the number of drugs at the pre-registration and registered but awaiting launch phases.
* 28% of all drugs in development have an anticancer therapeutic activity. 19.8% of the total pipeline has a neurological activity.
* The gradual ascent of biotech continues with 23.7% of the drugs placed under a biotechnology therapeutic category.
* Some positive news is a 6.2% increase in the number of drug protein targets under investigation.
* The J&J Empire, GSK and Genzyme enjoyed the most first launches in 2008.
* GSK remains the biggest company in R&D terms (240 drugs), but looks to surrender this position with the recent mega-mergers.
* The trend seems to be for the biggest companies to have shown slight declines in pipeline sizes, indicating that further segmentation and specialization seems to be the new motto of the industry.
* Despite the financial climate, it is encouraging to see a 6% rise (a total of 2084 companies) in the number of companies involved in pharma R&D. The recession does not seem to have dampened the spirits of start-ups & small companies with 836 of them listing one or two drugs in their portfolios.




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Monday, February 16, 2009

Dapoxetine: The Final Blockbuster?


Janssen-Cilag (a Johnson & Johnson company) announced on Feb 10 that it had received regulatory approval in Finland and Sweden for its dapoxetine drug Priligy™. These approvals follow the December 2008 decentralised marketing authorisation procedure adopted by seven European Union countries: Sweden, Austria, Finland, Germany, Spain, Italy and Portugal. The two Scandinavian countries can now boast another claim to fame: being the first nations to offer their men an approved treatment for Premature Ejaculation (PE).

Dapoxetine hydrochloride is a novel, selective serotonin reuptake inhibitor (SSRI) compound that last made headlines in 2005 when the US FDA declined to approve the drug for PE. The reasons cited back then were lack of sufficient evidence and side effect issues. Dapoxetine has now been extensively evaluated in five randomised, placebo-controlled Phase III clinical trials involving more than 6,000 men with PE and their partners. More details about that here. J&J hopes that their comprehensive trial programme pays dividends, and has applied for market authorization in the other 5 European nations with a decentralized system as well as 10 other countries, including Canada, Australia, Mexico and Turkey. Successful approval in these markets may well mean that it is only a matter of time before the FDA is faced with a second review of dapoxetine.

So why the big fuss you ask? Well, according to a well publicized 2005 study in the Journal of Sexual Medicine, PE is the most common male sexual dysfunction affecting between 20-30% of males (It just so happens that the study was funded in part by J&J and its subsidiary Alza). Nonetheless, it is a legitimate condition that millions suffer from, and at a time when pipelines can no longer cater to blockbuster categories, J&J finds itself sitting on a golden cash cow. The US erectile dysfunction (ED) market (Viagra, Cialis and Levitra) was $3.4 billion in 2007 and continues to grow; according to industry analysts, the market for PE drugs is estimated to be as large as the erectile dysfunction market. In contrast to ED, which is more prevalent in men over 50, PE is a problem encountered by sexually active men of all ages. Importantly, there is no major competition being faced as both Pfizer & GSK abandoned their candidate drugs after the FDA rejection in 2005. A Massachusetts company – NeuroHealing Pharmaceuticals- has a d-modafinil (of Provigil fame) isomer in development for PE, but they don’t expect to commence clinicals until early 2010.

Even more astonishing (and a testament to J&J’s superior deal-making capacity) is that the rights to dapoxetine were bought for a meager $65 million. Dapoxetine (originally known as LY 210448) was one of David Wong’s creations (others include Prozac, Cymbalta, Stattera) in the late 80’s when Eli Lilly actively began pursuing the depression market. However, after several failures, Lilly sold the patent to J&J in 2003 subsequent to their purchase of Alza. Although it is known that high serotonin levels do play a major factor in lengthening ejaculatory response, off label use of currently approved SSRI’s in treating PE have been largely discouraged due to the side effects such as ED, loss of libido, nausea, serotonin syndrome, and increased suicide risk. The beauty of dapoxetine however, is its very short half life of 1.2 hours, meaning men can take the medication on demand with low risk of accumulation.

Whether dapoxetine is effective or if it will be a successful product are no longer valid questions. In a post Viagra world, it is almost certain that it will achieve near-cult status. The real question is whether dapoxetine’s success will be its eventual downfall. Not unlike the COX drugs, the potential for flagrant prescribing of dapoxetine is high. Combined with what will certainly be a high rate of abuse, it will be interesting to see what medical precautions & dispensing limitations are placed. One thing is for sure, a dapoxetine tragedy can not be blamed solely on the manufacturer. This time around, the entire medical community will have to shoulder the responsibility.

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Tuesday, September 16, 2008

Chicken or the egg ?

"What we are seeing here is the 21st century scientific parallel to the Great Depression of 1929." - Anonymous

I have had the pleasure of conversing with many academics, industry professionals & students about the issues surrounding today's healthcare systems, and what policies should be implemented to effect the changes we wish to see. Despite the complexities involved, there is always one basic question that somehow always perplexes the respondent - regardless of their background knowledge. Its also a great conversation starter mind you. Today, I pose this question to the greater community:

What is (or rather should be) the single most important goal of drug manufacturers (biotech/pharma)?

A) To discover new ways to treat/prevent a medical condition or disease
or
B) To maximize shareholder return on investment


Yes, I only provide you with two very simple options, but only because I believe that such a reductionist approach is necessary to re-evaluate an intricate system. From idealistic researchers to the more conscientious investors and economists, I have heard arguments for both sides. Many more have refused to entertain my requests for an answer to such a seemingly inane question.

Those that choose "A" are posed questions such as - Is discovery enough justification for massive capital investment? Will venture capitalists continue supporting purely altruistic organizations that continue to lose money? What would be the driving force for enterpreneurs if there is no sustainable reward? Legally, all publicly traded companies are mandated by legislation to pursue investment return on behalf of shareholders. Is the answer then, to ensure privatization of the drug discovery sector?

Choose "B" and once again many queries come to mind. No really good team comes to work to "maximize shareholder profit/return"- At least not in this arena. Companies largely dependent on innovation are only as good as their intellectual property, and if their goal isn't to feed that quest then what are they selling? How can they ever gauge what an adequate investment in R&D should be? In a society placing increasing emphasis on corporate & social responsibility how can a money hungry entity ever gain any trust? More importantly, how would it be possible to keep churning out new technology/products & progress science given the conditional basis that they must be profitable. After all trial/error has been the most foolproof strategy throughout history.

Given the ostensive business model of biotech/pharma companies, it seems that B is generally accomplished through A. It is also true that a well-rounded establishment should ensure that different functional areas have different priorities (eg. R&D chooses A, Finance & Sales deals with B, etc). The truth is that it is extremely hard to pick one as being a priority over the other. Both objectives are so intertwined that anyone who confidently picks one over the other risks being deemed "not educated/experienced enough".

I do not know what the right answer is, either realistically, idealistically, psychologically or even nasally. But I do know that the problem is cultural & very soon we will come at a crossroads where we will be forced to pick a priority unless society as a whole can come up with an alternative to Laissez-faire economics.

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