Despite a Few Warts, CDC and FDA Say Gardasil is Safe and Effective

A post at the Pharmalot blog said that the US FDA and the Centers for Disease Control issued a statement today indicating, that after reviewing side effect reports, Merck’s anti-HPV (cervical cancer) vaccine Gardasil is safe and effective, and its benefits continue to outweigh its risks.

According to the statement, the joint agency review determined that 94 percent of  all side effects reported after Gardasil vaccination were not serious. The most commonly reported adverse events fainting, pain at the injection site, headache, nausea and fever. Fainting is common after injections and vaccinations, especially in adolescents, the agencies noted.

Although there have been 20 reported deaths following vaccination, there was no common pattern or tend that would suggest they were caused by the vaccine itself. The statement went on to say that in cases where autopsy, death certificate and medical records were available, the cause of death was explained by factors other than the vaccine.

The statement was likely issued in response to highly publicized and widely circulated adverse events reports issued by the ultraconservative Judicial Watch which is morally opposed to HPV vaccination. It is extremely unfortunate that a small but vocal group of conservative Christians are willing to risk the health of their daughters because they are morally opposed to premarital sex and birth control. 

Until next time….

Good Luck and Good Job Hunting!!!

Congrats to INSMED...I Think!

Richmond Va-based INSMED, a US-based follow-on biologics manufacturer, posted a press release on its website entitled: “Insmed Announces First Human Bioequivalence Data for a Follow-on Biologic by a U.S. Company” that reports on the results from a Phase I clinical trial that demonstrated that it lead product INS-19 was bioequivalent to Amgen’s Neupogen(R) (recombinant G-CSF) in stimulating human white blood cell production. 

, Dr. Geoffrey Allan, President and CEO of Insmed said  "These results are very exciting, as they represent Insmed's ability to replicate a protein product, to bring that product rapidly through the clinic and to demonstrate clear bioequivalence to the innovator drug," said "To our knowledge, we are the first U.S. company to report human bioequivalence data for a follow-on biologic product, validating the idea that follow-on biologics can be a scientific reality in the U.S. and that Insmed is well positioned to be a leader in the field. “ The company has requested a meeting with FDA to discuss the design of a Phase III human clinical trial for INS-19.

I am not sure why INSMED is so excited about its results. Sandoz essentially accomplished the same feat with Omnitrope, its biosimilar version of recombinant human growth hormone (HGH)and it took a law suit and a loophole in the approval process for growth hormones for FDA to allow it to be sold in the US. In my opinion, until legislation is passed that provides a clearly defined legal pathway for approval of follow-on biologics I suspect that INS-19 will suffer the same fate (or perhaps worse) than Omnitrope. Bioequivalence is only legal defined for and relevant for approval of small molecule NOT BIOLOGICS when seeking expedited approval for generic versions of branded products. That said, I want to tip my hat to INSMED for its willingness to take a lead role in the fight to get follow-on biologics approved in the US. Finally, there is nothing like an edgy press release and a few bloggers to bring an issue that is rapidly losing momentum back to the forefront.

Kudos to INSMED!!!!!!

Until next time….

Good Luck and Good Job Hunting!!!!!!

A Kinder and Gentler FDA?

In an attempt to assuage the jitters and financial concerns of investors who own stock in pharmaceutical, biotechnology and medical device companies, the US Food and Drug Administration announced yesterday that it will be change the format of the letter received by companies whose products are not ready for approval.

In the old days (at least until yesterday), when the agency determined that drugs were not suitable for sale, it would send companies a so-called non-approval letter. This letter was designed to inform drug and device makers that their products had issues that needed to be resolved before the agency will approve them. Apparently, (at least according to drug and device manufacturers), receipt of non-approval letters by companies signaled to investors that the product in question would never, under any circumstances, be approved by FDA. This urban legend was born because most companies that receive non-approvable letters decide against investing more time and money into products that FDA has deemed “unapprovable” i.e. there isn’t enough of a financial inducement or upside to continue further development.

Now, when new products are not up to snuff, companies will receive something called a “complete response letter.” According to the agency, the new letters will describe what is missing from a new drug or device application and, when, appropriate, offer advice on how to fix or address the problem(s). However, because contents of FDA letters are not released to the public, investors may now be less informed about the prospects of a new drug than in the past when the agency was able to send “approvable” or “non-approval” letters to companies.  “While this new plan may provide more detailed information to a company regarding issues that need to be addressed, investors will likely be kept in the dark on the true status of a drug’s approvability” said a pharmaceutical analyst after learning about the format changes. He went on to say “Investors will no longer know whether a drug is truly dead in the eyes of FDA.”

In my opinion, this is another example of FDA cow towing to the whims and wishes of industry. Whether you call it, a “non-approvable” or “complete response letter”, it still means the same thing—the drug or device is not ready for prime time! I don’t think that the change in semantics will do anything to assuage concerns of jittery investors. What it WILL do is force investors to rely solely on the honesty of the management teams that receives these letters—Oy!

I think that FDA ought to stick to the business of evaluating the safety and efficacy of drugs and be less concerned with the political and economic needs of the drug and device industries. Finally, it would be prudent for FDA to allow appropriately trained professionals to provide psychotherapy to all of the frightened and jittery investors out there!!

Until next time…

Good Luck and Good Job Hunting!!!!!!!

Is There Another Storm Brewing at Merck?

The old adage “When it rains, it pours” is particular apt for the bad news that has plagued the once venerable Merck & Co for the past five years. First, there was the Vioxx scandal, followed in short order by the Vytorin and Singulair messes and now it appears that the company’s new anti-cervical cancer vaccine, Gardasil, may have —pardon the expression — a few “warts” on it. 

Last night on my local nightly news, there was a brief report about emerging safety issues with Gardasil. According to the report, adverse events ranging from “massive wart outbreaks to seizures and paralysis” have been reported for the anti-HPV vaccine. Since its approval in 2006, over 8,000 adverse event reports (the total number of people vaccinated was not disclosed) and 18 alleged deaths have been reported for Gardasil (although none of the deaths has been directly linked to Gardasil vaccination). This news comes on the heels of a recent Wall Street analyst’s report indicating that sales of Gardasil are much lower than expected. It appears that the vaccine, once considered by Merck insiders as the new blockbuster that could save the flagging drug maker, may, after all, be relegated to specialty drug status.

As many of you may know, GlaxoSmithKline (GSK) is seeking US approval for its anti-cervical cancer vaccine called Cervarix. Although Merck beat GSK to market, Cervarix has undergone more clinical testing and allegedly may have a better safety and tolerability profile than Gardasil (only the regulatory agencies know for sure). Nevertheless, it is not clear whether GSK will benefit or be injured by the negative publicity that Gardasil is receiving. As I mentioned in a previous post, the US Food and Drug Administration (FDA) recently delayed Cervarix’s approval pending submission of additional data that the agency requested from GSK.

Before anybody puts a nail in Gardasil’s coffin, it is important to point out who started the recent firestorm about the vaccine. It was none other than the conservative-funded public interest group Judicial Watch. It is no secret that this group advocates abstinence over condom usage and other methods to prevent sexually transmitted diseases. Further,  I suspect that a majority of Judicial Watch’s members don’t believe sex education or pre-marital sex for that matter. Finally, I have no doubt that Judicial Watch received some support (financial, spiritual or otherwise) from the anti-vaccination lobby that is unfortunately gaining strength in the US and elsewhere.

From a scientific standpoint, it is difficult to get a real measure of the safety of a vaccine until it has been widely used by large numbers of people. Although pivotal Phase III trials are required for all vaccine approvals, the number of people studied in these trials (sometimes in the tens of thousands) is not sufficient to predict all possible safety problems that may emerge when the vaccine gains widespread use. For this reason, regulatory agencies typically require vaccine manufacturers to conduct mandatory post marketing Phase IV clinical trials that are designed to address the seriousness of any possible safety concerns that may have emerged after a vaccine has been on the market for several years. Because all vaccine makers know this, it is still not clear to me why Merck, a company which has been in the vaccine business for a very long time, embarked on its failed lobbying campaign to get Gardasil on the mandatory US vaccination schedule shortly after it was approved. 

As I have said in the past, ALL pharmaceutical and biotechnology drugs have side effects and their occurrence and severity varies from person to person. Generally speaking, most drugs are approved by regulatory agencies because their potential benefits outweigh real or presumed safety risks. That said, the question facing all parents who have daughters is: Does protection against cervical cancer outweigh any adverse events or potential safety risks associated with Gardasil or Cervarix vaccination? It is a tough question but one that my wife and I and others will have to answer for our daughters!

Until next time…

Good Luck and Good Job Hunting (avoid Whitehouse Station, NJ)!!!!!!!!!

Chinese Food and Your Heart

Somebody once said “Jews know two things—suffering and where to find good Chinese food”. Since I am Jewish, it is not surprising that I have experienced a fair amount of suffering throughout my life and, wherever I go, I seem to know where to find “good” Chinese food.  That said, my interest was piqued when I found a post in Yahoo Science News entitled “Study finds Chinese food good for your heart”. Given my lifelong fondness and penchant for Chinese cuisine, I thought that all of that eating that I had done had finally paid off. Unfortunately, after reading the subtitle of the article; “Chinese red yeast rice reduces repeat heart attacks/mortality rates” I realized that my joy and optimism were somewhat premature.

According to the report, researchers at Jefferson Medical College found that a partially purified extract of Chinese red yeast rice, Xuezhikang (XZK), reduced the risk of repeat heart attacks by 45%, revascularization (bypass surgery/angioplasty), cardiovascular mortality and total mortality by one-third and cancer mortality by two-thirds. The multicenter, randomized, double-blind clinical study was conducted on about 5,000 heart attack patients, ranging in age from 18-70 during a five-year period at over 60 hospitals in the People's Republic of China. Study participants were given 300-milligram XZK capsules or a placebo and tracked over a five-year period. The XZK extract used in the study contained a combination of lovastatin, lovastatin hydroxyl acid, ergosterol and several uncharacterized components.

Based on study results, the study’s authors believe that XZK may offer therapeutic benefits to people at risk of heart attack and cardiovascular disease. However, they cautioned that the active pharmacologic ingredient (API) of the red yeast rice is unknown and it isn’t clear how XZK works to fight cardiovascular disease.

Chinese medicine practitioners have long touted the benefits of red yeast rice for heart patients. Nevertheless, this is the first controlled clinical study of red yeast rice that tends to substantiate these claims. According to the study authors it is important to note that “the commercially available over-the-counter supplement found in your average health food store is not what was studied here. Those over-the-counter supplements are not regulated (by the US Food and Drug Administration), so exact amounts of active ingredient are unknown and their efficacy has not been studied yet.”

It is unfortunate that I didn’t know about the benefits of red yeast rice during my recent trip to China. I certainly would have gone out of my way to try some. That said, given the plethora of exotic foods that I tasted in China, maybe I ate some XZK without knowing it!

Until next time

Good Luck and Good Eating (Chinese of course)……

Wyeth Regulatory Woes Continue

The regulatory problems at Wyeth continue. The US Food and Drug Agency announced that it issued an approvable letter for Tygacil (Wyeth’s tetracycline-like antibiotic) to treat community acquired pneumonia (CAP). Apparently, FDA regulators want more data on the effectiveness and safety of Tygacil in severe cases of CAP and additional information on possible liver toxicity.

Tygacil, an intravenously administered antibiotic, won FDA approval in 2005 to treat adults with complicated intra-abdominal infections and complicated skin and skin-structure infections. Tygacil had about $138 million in sales last year; falling far short of the projected $500-$800 million in annual sales that it was expected to yield when it was first brought to market. If Wyeth gains approval for CAP, expect Tygacil sales to soar.

In other regulatory news, FDA granted Wyeth “fast-track approval” for a new version of its market-leading pediatric pneumococcal vaccine called Prevnar. The new 13-valent formulation will provide protection against 13 different pneumococcal serotypes. The older version only provided protection against 7 serotypes. Wyeth hopes to complete its filing for pediatric use of the new Prevnar vaccine in early 2009. Prevnar is Wyeth’s second-leading product with sales of about $2.5 billion in 2007.  

The new Prevnar vaccine will likely go head-to-head with GlaxoSmithKline’s new 10-valent pneumococcal vaccine  called SynflorixTm which is in late stage clinical development and is currently being reviewed for marketing approval in the EU. Unlike Wyeth’s vaccine, SynflorixTm  was found to be effective in protecting against otitis media (ear infections) caused by Haemophilus influenzae.

Until next time,

Good Luck and Good Job Hunting (avoid Collegeville, PA)!!!!!!!!

Ho-Hum--Another Direct-to-Consumer Television Ad is Under Fire

The newest culprit in the direct-to-consumer (DTC) television ad cat and mouse game between pharmaceutical manufacturers and US regulators is Cordis, a medical device subsidiary of Johnson & Johnson. The ad in question deals with promotion of the use of a cardiac stent called Cypher that is manufactured by the company. The television ad is the first ever to market a medical device. Nevertheless, according to an article published in this week’s New England Journal of Medicine, the ad overstates the benefits of the stent without mentioning possible adverse effects that can include heart attack and stroke.

The current brouhaha is nothing new in the ongoing battle between drug manufacturer (and now, medical device companies) and regulators over DTC advertising. As some of you may know, the US is one of a few industrialized countries in the world that allows DTC advertising.  Further, DTC ads don’t require FDA review or approval before they are aired or printed–although in some instances, companies do request FDA review. 

Because of growing problems with DTC ads (especially television spots), there is mounting pressure on FDA to limit consumer medical advertising or, at the very least, increase regulatory oversight of it. To that end, on Friday, an FDA advisory panel will convene to discuss whether television ads for prescription medications ought to include a statement encouraging consumers to report any adverse side effects via a toll free number to the agency. At present, this type of disclaimer is only required for DTC print ads.

For those of you who don’t know, FDA has (by law) a post marketing surveillance network in place to allow consumers to report any side effects (big or small) that they may experience after taking prescription or over the counter medications. Further, companies are required by FDA regulations to immediately report any and all side effects associated with their products.

Of interest, in a hearing last week on drug advertising (being conducted by the House Energy and Commerce Committee), several drug company representatives in attendance were asked whether or not they would support a toll free number on television ads to encourage viewers to report adverse side effects. Surprisingly (perhaps not) they could or would not directly answer the question. According to John D. Dingell, chair of the committee and advocate of greater regulatory oversight of DTC advertising, “Some ads appear to be misleading and others appear to be downright deceptive.” Imagine that!

What is particularly disturbing about the DTC controversy is that government officials and legislators are frequently incredulous when they learn about DTC advertising abuses. As I have stated time and time again, there are larges sums of money at stake here. This coupled, with little or no regulation, and mounting pressures to keep company stock price shares high, is a sure recipe for disaster (as we have begun to witness over the past 5 years or more). In my opinion, there is only a single solution to the problem–craft more stringent regulations and greater FDA oversight for DTC advertising. Asking drug and medical devices companies to regulate themselves in any area is tantamount to allowing a fox to live in a hen house—the pickings are easy and only the fox gets fat!

Until next time….

Good Luck and Good Job Hunting!!!!!

Who's Who in the Biosimilar Space?

In 2004, the European Commission adopted a new directive that paved the way for legal approval of biosimilars in the European Union (EU). To date, five (5) biosimilars have garnered marketing approval in the EU. Of the five, two are generic versions of recombinant growth hormone (rHGH)–Omnitrope (Sandoz) and Valtropin (Biopartners). The remaining three are “knock off” versions of erythropoietin alpha–Binocrit (Sandoz), Epoetin alpha Hexal (Hexal) and Abseamed (Medice Arneimittel Putter).

There is no doubt, at this point, that Europe is leading the way in the biosimilar space. However, it is important to point out that a variety of biosimilars, developed by Indian generic manufacturers and others, are already being sold in less- regulated Asian markets (see Table 1). Unfortunately, political issues and the fierce struggle between innovator

Table 1. Biosimilar Manufacturers and Their Products

Company

Launched Biosimilars

In the Pipeline

Barr                                                          (www.barr.com)

EPO scheduled for launch in Eastern Europe

G-CSF (Filgastrim), Insulin, and HGH

Biocon                                          (www.bioconinc.com)

Insugen (Insulin in India and China), Erypro (EPO) G-CSF, Nimotruzmab, BIOMAb EGFR (cancer)

Insulin, glargine and HGH

Biopartners                             (www.biopartners.ch)

Valtropin (rHGH)

Alpheon (INF-α) and EPO

Cipla                                                   (www.cipla.com)

None

Autoimmune, cancer and cardiovascular

Dr. Reddy’s Labs                       (www.drreddys.com)

G-CSF (Filgastrim)

Nine (9) development programs

Glenmark                  (www.glenmarkpharma.com)

None

GBR 500 (mAb for MS), GBR600 (antithrombotic) and mAbs for adhesion molecular inhibitors

Intas Biopharma (www.intasbiopharma.com)

Neukine (G-CSF), Erykine (EPO) and Intalfa (INF-alpha2b)

Six (6) development programs

Prolong Pharmaceuticals (www.prolongpharmaceuticals.com)

None

PEG-EPO and other PEGylated proteins

Ranbaxy

(www.ranbaxy.com)

Nugraf (Filgrastim), Macrogen (Molgramostim from Zenotech)

mAbs in oncology and neurology

Sandoz

(www.sandoz.com)

Omnitrope (HGH), Binocrit (EPO)

Six (6) development programs including G-CSF (Filgrastim)

Shanta Biotechnics                              (www.shantabio.com)

Shaferon (INF-alpha2b, Shankinase (streptokinase) and Shanpoietin (EPO)

mAbs and PEGylated therapeutic proteins

Stada                                               (www.stada.de)

EPO-Zeta (approved)

Filgrastim

Teva                                           (www.tevapharma.com)

G-CSF (Filagstrim),Teva-Tropin (HGH), INF-alpha2b

Insulin, EPO and interleukins

Wockhardt                             (www.wockhardt.com)

Wepo (EPO), Wosulin (insulin) INF-alpha2b, G-CSF

Insulin Glargine

biotechnology companies and generic manufacturers have delayed development of legislation for regulatory approval of follow-on biologics (American lingo for biosimilars) in the US. Further, and perhaps more perplexing, the FDA has been reluctant to issue any guidance on the topic. However, rising drug costs and increasing expenditures on biologics (both by Medicare and private insurers) have left American lawmakers with no choice but to craft legislation for approval of follow-on biologics.

In the first half of 2007 alone, three different bills were proposed to craft a statutory pathway for the approval of follow-on biologics under the Biologic License Application (BLA). The first of these bills–The Access to Life-Saving Medicine Act– was introduced into Congress by Representative Henry Waxman (CA) and into Senate by Senator Chuck Schumer (NY) in February. The second bill–the Patent Protection and Innovative Biologic Medicine Act –was introduced in Congress in April by Representative Jay Inslee (WA). Neither bill made any progress. This is because the Access to Life-Saving Medicine Act was considered to be heavily pro-follow-on whereas the Patent Protection and Innovative Biologic Medicine Act was deemed to favor innovator companies and did not provide any financial incentives for follow-on manufacturers.


A compromise was reached by both Republican and Democrat Senators and the Biologics Price Protection and Innovation Act was approved by the Senate on June 27.  It proposes 12 years of market exclusivity for the patent holders but also one year of exclusivity to the first follow-on biologic to be approved as interchangeable with the reference product.  I previously aired my views on the proposed legislation. For a more in depth analysis of the issues and the bills, please read this.

Recently, there was an important new regulatory development in the European biosimilar landscape. Sandoz’s EPO, Binocrit, received the same nonproprietary name (INN) as Amgen’s original erythropoietin alpha (Epogen in the US, Eprex in Europe).This was a big win for the biosimilar industry because the INN debate had been raging in the EU for the past several years. Innovator companies wanted biosimilars to have different INN than their products whereas biosimilar manufacturers were lobbying for identical INN designation. An identical INN designation allows for  interchangeability of medicines. The fact that EMEA granted Binocrit the same INN number as Eprex, means that the agency views the two products as biologically-equivalent and interchangeable. This paves the way for EU pharmacists to freely substitute Binocrit for the more expensive Eprex. Also, it sends a message to US lawmakers and FDA that the EU considers certain biosimilars as interchangeable with their innovator counterparts. As you may have guessed, the issue of interchangeability is being hotly debated and contested by advocates on both sides of the follow-on biologics fence.

The US is clearly dragging its feet in the follow-on biologics arena. The prime driver of this inertia is the imagined loss of revenue that many innovator companies fear will occur if the US ultimately divines a regulatory approval pathway for follow-on biologics. That said, with Europe and India leading the charge into Asia, it looks as though the US is going to loss a substantial amount of money (not to mention market share) anyway.

With regard to biosimilars in the US, it is no longer a question of “if” but “when.” That said, I think that the one seminal issue that needs to be addressed is what to call these things in the US?  In my opinion, the European moniker, biosimilar, is particularly apt and appropriate for this new class of medicines. Unfortunately, we Americans don’t like to play second fiddle to anybody, especially the Europeans. With this in mind, I have no doubt that they WILL NOT be called biosimilars in the US. Whatever they are called, don’t be surprised to find them your pharmacist’s shelves in the next couple f years!

Until next time….

Good Luck and Good Job Hunting!!!!!!!!!

Merck Reduces Its Sales Force by 1,200

As I mentioned in previous posts, things are simply not going Merck’s way. Merck has been battered in the past several months by the Singular flap, precipitous drops in Vytorin and Zetia sales and, most recently, FDA’s rejection of its follow-up Cordaptive anti-cholesterol drug. This has left the drug maker with little choice but to cut an additional 1,200 jobs from its rapidly shrinking US sales force.

The cuts, announced yesterday, are in addition to a companywide reorganization that began in 2005 which resulted in the elimination of approximately 8,100 positions. As of last December, Merck had 59,800 employees worldwide—soon to be 58,600 give or take a few employees!

Until next time….

Good Luck and Good Job Hunting???????

A New Age is Dawning: FDA to Go On a Hiring Spree!

The Food and Drug Administration (FDA) announced today that it wants to hire 1,300 biologists, chemists, medical officers and others over the next several months. The agency currently employs more than 10,000 people and wants to add 600 new employees and backfill more than 700 that have been vacant by October. The new hires will triple the number hired from 2005 to 2007. Roughly 30% of all regular FDA staffers and approximately half of FDA managers are already eligible to retire.

An FDA spokesperson said that 400 of the new jobs will be related to drug application review and another 150 will be hired as inspectors to inspect drugs, foods and other related items. The agency will rely on user fees from drug companies to pay for all drug review jobs and about 100 other positions. The rest will come from the funds that were recently appropriated by Congress.

In addition to drug reviewers and inspectors, FDA is seeking consumer safety officers, nurse consultants, statisticians, epidemiologists, pharmacologists, pharmacists and veterinarians. Most of the positions are in the Washington D.C area but some are overseas and in other parts of the US.

This is one of the largest hiring initiatives in FDA’s history. It’s about time that Congress realized that the agency has been seriously under funded and understaffed ever since Bush was elected in 2001. I suspect that the impetus for the additional funding and hiring initiative has a lot to do with the beating that the agency has taken over the past few years. As we all know, FDA has been blasted by consumer advocates and lawmakers for lax oversight and inefficiency.

I can’t recall whether I said this before, but FDA is a great place “to be from”. Many of my colleagues who worked at FDA for three or more years are now highly paid regulatory consultants charging the companies that hire them about $3,000 to $5,000 per day. That said, as a bit of career advice; opportunity is knocking—don’t dither and wait too long before you apply.

Until next time….

Good Luck and Good Job Hunting (at FDA)!!!!!!!!!!

FDA Rejects Merck's New Cholesterol Medication

It seems like nothing is going right for Merck these days. On Monday, the US Food and Drug Administration (FDA) issued a “not approvable”–aka a rejection letter–for Merck’s new cholesterol drug called Cordaptive or MK-0524A. The highly-touted drug, which Merck executives hoped would replace Merck’s blockbuster cholesterol drug, Zocor (which lost patent protection a couple of years ago), can both lower LDL (bad) and raise HDL (good) cholesterol. Although experts believe that these properties should benefit people with high cholesterol, the results from recent clinical trials suggest that drugs that raise LDL and lower HDL cholesterol may have safety problems.

Cordaptive consists of an extended-release form of niacin (a B vitamin) and another agent that inhibits a niacin side effect called flushing — redness, burning and tingling of the face. Niacin has been used to control cholesterol for decades. Abbott Laboratories already sells an extended-release form of niacin called Niaspan.

Despite positive results from recent clinical trials and pending approval by the European Union, the agency rejected Merck’s NDA. Regulators also rejected Cordaptive as a brand name. It is likely that FDA is scrutinizing and proceeding cautiously with new cholesterol medications because of the recent flap over Zetia and Vytorin (which are co-marketed and sold by Merck and Schering Plough). As you may recall, both companies have been accused of trying to protect sales of the two drugs by delaying results of a study that showed Vytorin worked no better than Zocor, which is much cheaper.  Merck’s stock price dropped about 5% yesterday after the company announced that it received a not approvable letter from FDA.

Although MK-0524A may ultimately reach the US market, I wouldn’t count on it anytime soon. Merck has seriously tarnished its reputation with FDA because of the Vioxx, Vytorin and Singular controversies. The old adage, “You reap what you sow” is particularly apt in this instance. Look for more “asset reallocation” moves in Rahway.

Until next time…

Good Luck and Good Job Hunting!!!!!!!!

Merck, Singulair and FDA

After weathering the Vioxx storm for the past three years, Merck again finds itself in choppy and unchartered waters. Still reeling from the Vytorin flap that erupted two months ago, there are new allegations that its blockbuster allergy and asthma medicine, Singulair, may be linked to suicide. The US Food and Drug administration (FDA) was quick (this time) to announce that it is launching an investigation into reports that suggest that Singulair may cause patients taking the medication to commit suicide. Merck received approval for Singulair in 1998 and it had sales of $4.3 billion in 2007.

There are several reasons why FDA quickly alerted the American public to its investigation into Singulair. First, FDA has been relentlessly chastised in recent months by Congress for not notifying Americans early enough in drug safety investigations. Historically, FDA has waited until the end of an investigation (rather than the beginning) before alerting the public about possible drug safety issues. Second, the agency was well aware of emerging and ongoing safety issues with Singulair. For example, over the last year, FDA regulators asked Merck to update Singulair’s label four times. These changes included information on side effects such as tremors, anxiousness, depression and suicidal ideation.

As part of its current investigation, FDA requested that  Merck “dig deeper into its clinical data on Singulair for any evidence of possible links to suicide.” Merck quickly responded and noted that none of the 11,000 patients enrolled in 40 Singular clinical trials had committed suicide. Of course this doesn’t mean that people taking Singulair didn’t think about committing suicide. In Merck’s defense, the company may not have thought to include a question about suicidal thoughts as part of Singulair’s clinical development program. Nevertheless, it is important to note that the safety profiles for many approved drugs are not fully realized until the drug has been on the market for several years. This is because the small numbers of patient used in the clinical trials for approval of a new medication are usually not sufficient to identify all  potential safety problems. Unforeseen  or unanticipated side effects typically begin to emerge only after a drug is used by larger numbers of people in the general population.  

For this reason, the Food Drug and Cosmetic Act requires that all companies that win approval for new medications are required to set up post marketing surveillance programs. The purpose of these programs is to report any and all side effects of approved drugs to the agency. The post marketing surveillance regulation stipulates that physicians, patients and drug manufacturers must report any side effects or adverse events to the agency. Based on the number of adverse events reports that it receives, FDA can launch an investigation to determine what regulatory actions, if any, should be taken by the drug’s manufacturer to deal with the safety problems. Possible regulatory actions include label changes, black box warnings, physician notification letters, Phase IV clinical trials and possible suspension or revocation of a drug license.

Luckily for Merck, the jury is still out (no pun intended) on Singulair. That said, the good news is that the drug safety and post marketing surveillance programs outlined in the FD&C act are working exactly the way they were designed to!

Until next time…

Good Luck and Good Job Hunting (avoid Whitehouse Station NJ)!!!!!!!!

The Real Problem at FDA

I spent the entire morning reading various articles, blog posts and comments about what is wrong with the US Food and Drug Administration (FDA). Not surprisingly, phrases like “drug lag”, the large size and costs of clinical trials, political and corporate influence, reduced numbers of NME approvals etc appeared ad nauseum. These are the same old, tired complaints with the agency that have been bandied about for the past 10 years or so. 

In my opinion, the bottom line is this: the agency is egregiously under staffed and under funded despite the fact that companies pay steep user fees for regulatory reviews. I can understand why corporate America is dissatisfied with the service that it receives from FDA. It is natural to expect good customer service after paying large sums of money to a service provider.  However, it is important to note, that the words “customer service” don’t appear any where in the Food, Drug and Cosmetic Act of 1938 (although it can possibly be implied fromPDUFA in 1992 and FDAMA in 1997).  Nevertheless, what is mentioned in the FD&C is SAFE and EFFICACIOUS pharmaceuticals, biologics and medical devices. Put simply, safe and efficacious products, not customer service, is REAL the mission of FDA.  With this in mind, the agency is legally required to do everything in its power to provide Americans with carefully scrutinized and safe medical devices, pharmaceutical and biotechnology products.

If we Americans want FDA to accomplish its REAL mission, then the agency must be sufficiently funded, adequately staffed and have strong, non-partisan leadership. Unless this occurs, FDA will continue to struggle and remain dysfunctional well into the 21st century.

Until next time…

Good Luck and Good Job Hunting!!!!!

It Had to Happen Sooner or Later: Health Canada Adopts Draft Guidance for Subsequent Entry aka Follow-On Biologics aka Biogenerics

Ed Silverman over at Pharmalot reported today that Health Canada, the Canadian equivalent of the FDA has beaten the FDA to the punch and issued draft guidance for follow-on biologics known in Canada as subsequent entry biologics. The Canadian regulatory agency recently posted on its website requirements for manufacturers and says it could approve products under existing regulations until laws are amended to include the new approval pathway.

If approved, a subsequent-entry biologic would have to be similar to a previously approved biologic, relying in part on publicly- available safety and efficacy data. Product interchangeability and substitutability would not be automatic, but would be decided on a case-by-case basis, according to the draft guidance. Health Canada says it plans to publish additional guidance documents on specific product classes.

A subsequent-entry biologic would not automatically be approved for all the same indications as the reference product, and data would be required to support each indication in most cases. A meeting to review the draft document is scheduled for May. The proposed Canadian legislation is very similar to that adopted by the European Union for biosimilar products (what they are called in Europe). Not surprisingly the recently proposed US legislation is markedly different than the Canadian and European legislation. Go figure!

Antibiotic Approval Update

Basilea Pharmaceutica Ltd announced yesterday that the U.S. Food and Drug Administration issued an Approvable Letter for ceftobiprole, a first-in-class anti-MRSA broad-spectrum cephalosporin, for the treatment of complicated skin and skin structure infections including diabetic foot infections. Results from two Phase III studies involving 1600 patients with complicated skin and skin structure and diabetic foot infections showed that ceftobriprole was as effective and safe as other cephalosporin antibiotics.

The Approvable Letter indicates that the ceftobiprole application is approvable, subject to completion and assessment of clinical study site inspections; assessment of clinical and microbiological data provided but not yet reviewed; and further characterization of patients with diabetic foot infections. Ceftobiprole is currently being reviewed by regulatory authorities in Canada, the European Union and in Switzerland. The antibiotic is being co-developed and marketed with Johnson and Johnson.

Until next time…

Good Luck and Good Job Hunting!!!!!!

The FDA New Drug Approval Conundrum Revealed

FDA approvals of biopharmaceutical products have decreased in recent years. This includes recombinant proteins and monoclonal antibodies and cancer therapeutics. In the decade from 1996-2005, an average of 16.6 new drugs were approved each year. In marked contrast, there were only 11 and 12 new medications approved in 2006 and 2007, respectively.

Last year was an unusually unproductive year for the pharmaceutical and biotechnology industry. The combined sales for products approved in 2007 are projected to be less than $1.0 billion dollars–the benchmark for drugs that receives blockbuster status. Further, most or the approved drugs were similar to ones that were previously approved (so called “me too” drugs) and none will significantly improve healthcare for large numbers of patients.  Finally, only two recombinant protein drugs were approved in 2007–a level more representative of the 1980s.

Most analysts agree that it is unclear why FDA approval of new drugs has decreased over the past few years and who, if anybody (FDA and/or industry), deserves the blame for the approval drop-off. Regulatory filings for a number of new products are either expected or currently pending. To that end, it is likely that there will be more new approvals in 2008 and 2009 as compared with previous years. To learn more about the drug approval conundrum please read this article recently written by Ronald A Radar.

The rate of new approvals must increase in order for the biopharmaceutical and pharmaceutical industries to remain economically healthy and viable. Industry and the FDA must work more closely with one another to continue to insure that the American public has ready access to innovative, safe and efficacious, new biopharmaceutical and pharmaceutical products. 

FDA Advisory Panel Gives a "Thumbs Up" To Continue Using EPO for Cancer Patients

According to Johnson & Johnson, a panel of advisors for the Food and Drug Administration, in a surprise decision, supported keeping Epogen, Procrit and Aranesp from Amgen and Johnson & Johnson on the market for use in cancer patients who are anemic from chemotherapy.

The advisor panel voted 13-1 to keep Amgen's Aranesp and J&J's on the market for use with chemotherapy. The recommendation was very surprising because over the last year FDA has scrutinized the drugs because of safety concerns and recently added new warnings to the labels. Many analysts expected further recommendations for restrictions. Although the advisory panel vote is non-binding, FDA usually follows the advice of its panels when making regulatory decisions. However, it is important to note that FDA has not followed the advice of several advisory panels in the recent past.

The positive advisory panel vote is good news for J& J and Amgen because billions of dollars in revenue are at risk for the cancer indication.  I bet that J & J and Amgen executives breathed a collective sigh of relief after hearing the news!  Maybe that loud noise I heard earlier today was the popping of champagne corks at J & J corporate headquarters in New Brunswick, NJ.  

To quote Mark Twain: “The rumors of my death have been greatly exaggerated” is particularly apt for Amgen and J &J after today’s decision.

Until next time….

Good Luck and Good Job Hunting!!!!!!

Drug Sales Dip...Oh My!!!!!

According to a press release by IMS, a company that tracks pharmaceutical sales, growth of the US pharmaceutical market shrank from 8% in 2006 to a meager 3.8% in 2007–the slowest growth rate since 1961. Total U.S. prescription sales in 2007 only reached $286.5 billion. The 2007 slowdown in sales was attributed to:

  • Loss of patent exclusivity for branded products
  • Fewer new drug approvals
  • Effect of Medicare Part D on annual growth
  • Renewed focus on safety issues by US Food and Drug Administration

Industry officials place the blame for the slow down on FDA because fewer newer drugs were approved in 2007 as compared with years past. However, I believe that the slow down has more to do with:

  • Higher prices of branded medications as compared with generic drugs
  • Lack of public confidence in the pharmaceutical industry
  • Increased scrutiny by regulators on direct to consumer advertising and continuing medical education (CME)
  • Fewer and less innovative drugs in company pipelines

Bashing FDA is easy. The willingness of the pharmaceutical industry to assume ownership of some of its own shortcomings and missteps is substantially more difficult to do!

Until next time….

Good Luck and Good Job Hunting!!!!!!!!

The EPO Saga: The Demise of a Blockbuster Drug

Erythropoietin (EPO) is a hormone (protein) that regulates red blood cell production in humans. Back in the 1980s, scientists at a fledgling biotechnology company called Amgen determined that recombinant EPO was highly effective for treating anemia. Amgen owned the intellectual property rights to the EPO gene and decided to sell the recombinant protein encoded by EPO (called epoetin) as a treatment for anemia.EPO is known to alleviate fatigue caused by anemia by stimulating red blood cell production.

Amgen’s first EPO product, called Epogen, was approved in 1989 to treat patients suffering from anemia associated with renal failure. Procrit, Johnson and Johnson’s version of EPO (which was licensed from Amgen) was approved four years later in 1993 to treat chemotherapy-induced anemia. Aranesp, a longer acting version of EPO which is also manufactured by Amgen was approved in 2001 for anemia associated with chronic renal failure and in 2002 for chemotherapy-induced anemia in cancer patients.  All of the EPO drugs have gained blockbuster status and, over the past five years or so, the annual revenue generated by these drug is estimated to be $6.0 to $12 .0 billion.

Since their approvals, EPO, Aranesp and Procrit have been administered to tens of millions of kidney dialysis and cancer patients undergoing chemotherapy with minimal safety concerns and generally positive outcomes. However, with the looming specter of generic biologics (EPO lost patent protection in 2004) and competition from companies like Roche developing competing EPO products, Amgen stepped up its efforts to promote and sell EPO and Aranesp. This, in turn, caused EPO drugs to be used by many physicians, which ultimately resulted in additional safety warnings and a label change for all EPO products. The label change coupled with unrelenting negative publicity about Amgen’s promotion of its EPO franchise, caused its stock price to plummet and forced the company late last year to lay off 14% of its workforce.

Like other biotechnology and pharmaceutical companies, Amgen sought to find ne indications for its EPO products. To that end, there was some compelling evidence several years ago which suggested that EPOmight increase survival of cancer patients, when used with radiation and chemotherapy. The idea was that higher oxygen levels in the blood would make the radiation or chemotherapy being used to treat the patients' cancer more effective. With this in mind, several groups of investigators initiated human clinical trials to determine whether EPO treatment would benefit non-anemic cancer patients. Unfortunately, the New York Times reports that results from no fewer than eight clinical trials suggest that EPO drugs might actually promote rather than slow tumor growth and hasten the death of cancer patients.

Amgen believes that the increased trial deaths among EPO-treated patients resulted from blood clots rather than by promoting tumor progression or growth. The company contends that the amounts of EPO used in the trials exceeded what is recommended in the drug label and, at those levels, blood clots are a known common side effect. On the other hand, there is a growing body of evidence from a variety of sources which suggests that some types of human tumors express EPO receptors, which when stimulated by EPO binding, induces tumor cell proliferation. To make matters worse, when Procrit was first approved to treat chemotherapy-induced anemia, FDA regulators suggested in briefing documents that there may be a “hypothetical risk” that EPO could stimulate tumor cell growth. Nevertheless, neither FDA nor most EPO experts believe at this time that a direct link between EPO use and tumor growth has been established. Everyone agrees that more research must be conducted to verify or refute this idea.

Tomorrow, an advisory committee to FDA will consider placing further safety restrictions on the use of EPO drugs.  If they feel that blood clots were responsible for increased death among EPO-treated cancer patients then the recommendation would be relatively simple–only use the recommended modest levels of EPO to treat cancer patients as indicated on the product label.  However, if they believe that EPO directly stimulates tumor growth then even the currently recommended modest doses of the drug may be too risky to treat cancer patients. Regardless of the outcome of the tomorrow’s FDA advisory meeting, it is clear that Amgen’s flagship EPO franchise may be in serious jeopardy.

Until next time….

Good Luck and Good Job Hunting!!!!!!!

Changes at FDA? --Janet Woodcock Chosen (Again) to Head CDER

After an exhaustive nationwide search, FDA Commissioner Andrew von Eschenbach decided yesterday that Janet Woodcock, a career FDA staffer, was the best choice to lead the agency’s struggling Center for Drug Evaluation (CDER). For Dr. Woodcock who has been the acting head of CDER since September, this will be the second time that she was tapped to lead the center. She was previously appointed to the top CDER job in 1994 by then FDA Commissioner David Kessler (the last time FDA had any real leadership).

The inside skinny on the appointment is that she beat out Jesse Goodman for the position, another career FDA employee  who is currently the head of the agency’s Center For Biologics Evaluation and Research (CBER).  What surprises me the most about Woodcock's appointment is that after a nationwide search to find a new leader for CDER, von Eschenbach’s final choice was between two career FDA bureaucrats!  Why bring in an outsider with fresh new ideas when the best available talent in the land already works for you?

Don’t expect anything to change at the agency.  Dr. Woodcock tows the party line and is loyal to von Eschenbach (who by the way is a personal friend of the Bush family). It is no secret that FDA is broken and desperately needs to be fixed. Choosing a person to lead CDER (for the second time) who has been at FDA for almost her entire career, signals  that Commissioner von Eschenbach is neither ready nor willing to implement the systemic changes that are so drastically needed at the agency.  Maybe something will change at FDA when someone other than George W. Bush is in the White House?

Until next time….

Good Luck and Good Job Hunting!!!!!

FDA Adds Black Box Safety Warning to EPO Drugs

Amgen announced today that US regulators added black box warnings to its erythropoietin drugs, Epogen and Aranesp. Similar warnings were also added to Johnson and Johnson’s Procrit which is licensed from Amgen. For those of you who don’t know, getting a black box warning on a drug label is like getting the “kiss of death” from a marketing and sales perspective. It certainly will not help sales of these products!

The new warnings approved by the Food and Drug Administration warn that the company's drugs increased death and accelerated tumor growth in patients with several types of cancer, including breast and cervical. Prior labeling warned of similar risks in other types of cancers.

The actions taken by the agency were not unexpected but suffice it to say there are a lot of unhappy Amgen and Johnson & Johnson employees in a Thousand Oaks, CA and New Brunswick, NJ

Until next time….

Good Luck and Good Job Hunting!!!!!!!

FDA Delays Another Decision on a New Antibiotic

Where have the folks at FDA been hiding for the past decade?  I thought that by now everybody had heard about multi-drug resistant bacteria and the need for new antibiotics. Why, I bet that even President Bush knows this –hmmmm– well, okay– but you get my point!

FDA announced today that it needs more data and time to evaluate Johnson and Johnson’s “new indication” NDA for its antibiotic Doribax (doripenem). The antibiotic is already approved to treat urinary tract and intra-abdominal infections. The company is seeking approval to expand treatment to cover nosocomial or ‘hospital-acquired’ pneumonia as well as ventilator-associated pneumonia.

The new application was submitted in June 2007 but the FDA’s request for new data means that the review period has been extended by at least three months. Doribax is licensed from Japanese drug maker Shionogi and is currently undergoing regulatory review in Europe, Canada and in other countries.

This delay comes less than a month after the agency cancelled a meeting of its anti-infective drugs advisory committee which was scheduled for February 28. At that meeting, the agency was scheduled to review another J&J antibiotic ceftobiprole, which is being co-developed with Switzerland’s Basilea Pharmaceutica. No reason was given by the agency for cancellation of the ceftobiprole meeting which is being evaluated as a treatment of complicated skin and skin structure infections, including diabetic foot infections.

I am not sure why FDA can’t make up its mind about the approvability of new antibiotics. They certainly had little difficulty approving Vioxx, Zyprexa and Avandia.  Maybe FDA ought to hire some more microbiologists? 

Until next time….

Good Luck and Good Job Hunting!!!!!!!!!!!!

Enough with the China Bashing Already

For the past year or more, the US media has been vociferously bashing tainted imported Chinese goods any time it can. The tainted products have ranged from toys to dog food and most recently to Baxter’s heparin which has been associated with illnesses and deaths in this country.  

I suspect that this recent spate of China bashing has more to do with political and future economic issues than the safety and well being of the American public. Nevertheless, according to US Food and Drug Administration Current Good Manufacturing Practices (CGMP) regulations, companies that hold the licenses to manufacture pharmaceutical and biotechnology products assume full responsibility for the quality and safety of their products. To accomplish this, companies are required to test all raw materials, excipients and APIs (regardless of their source) before they are assembled to make a finish pharmaceutical or biotechnology product. The results of these tests must be carefully analyzed and compared with the product quality specifications established by the company and approved by FDA. If the test results for product ingredients are outside of the normal range of established specifications, then the company is obliged to reject the materials and not used them to manufacture product. To that end, there was clearly, something was wrong with quality testing at the Baxter heparin manufacturing facility because the adulterated heparin API should have been detected long, before it was used to manufacture the final product. Although the Chinese heparin may have adulterated, the onus was on Baxter (the company that holds the product license) and not the Chinese government to insure its final product met quality standards and was safe for public use.

Outsourcing is a fact of life in almost every sector of the American economy. Pharmaceutical and biotechnology companies import the materials they use in their products from all over the world. It is FDA’s job to insure that American companies remain CGMP compliant so that they produce safe and effective medications. To blame America’s regulatory shortcomings on foreign manufacturers and their governments is dangerous and naïve-not to mention chauvinistic.

Until next time…

Good Luck and Good Job Hunting (try Shanghai)!!!!!!!!!!

Pfizer and Jarvik Part Company Over Heart-Wrenching Television Ad

I am old enough to remember when the artificial heart was invented and used to extend the life of Barney Clark, a dentist in Seattle, WA. It was a phenomenal accomplishment back in the day. So, it seemed appropriate to me that Robert Jarvik, the guy who invented the artificial heart, appeared in Pfizer’s Lipitor ads as a spokesperson to promote heart health. However, a Congressional committee examining consumer drug advertising has questioned whether the Lipitor ads may have misrepresented Dr. Jarvik and his credentials to promote the drug.

Although Dr. Jarvik has a medical degree, he is not a cardiologist nor is he licensed to practice medicine! Further, one television ads depicts Dr. Jarvik as an accomplished rower but the ad used a body double for him and, as it turns out, he does not even row! To make matters worse, a former colleague of Jarvik contends that he is not the actual inventor of the artificial heart. He suggested that the distinction belongs to Jarvik’s mentor Willem J. Kolff and his associate Tetsuzo Akutsu at the University of Utah. Go figure! Despite the firestorm, Pfizer continues to air the television ad ( I saw it just a few days ago).

Pfizer has spent more than $258 million advertising Lipitor (a cholesterol-lowering statin) since January 2006, most of it on the Jarvik campaign in an attempt to protect Lipitor from generic competition. Lipitor is the world’s best selling drug and generated $12.7 billion in revenues in 2007. While Lipitor has patent protection until 2010, some patients have already switched to a generic version of a competing cholesterol drug Zocor. According to published reports Pfizer agreed to pay Jarvik about $1.35 million under a two-year contract that expires next month. I think it is safe to assume that Jarvik will not appear in any future Lipitor ads.

As many of you may know, drug companies FDA is not required to review direct-to-consumer ads before they are aired to the American public. While some companies request FDA review of their promotional materials before they are used in advertising campaigns, the vast majority of companies do not. Unfortunately, because of this regulatory loophole, direct-to-consumer advertising has turned into something of a cat and mouse game–there are only consequences and penalties if you get caught misrepresenting or not fully disclosing information about