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Marketing Off-label Use of Drugs: A Path Much Abused?

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As many would know, prescribing any medicine for disease conditions that are not approved by the drug approving authorities while granting its marketing approval, is generally termed as ‘off-label’ use of drugs.

It is also a usual practice in most of the regulated markets of the world that once the drug regulators give marketing approval of a medicine, which is indication-specific, physicians are free to prescribe these as they deem necessary. However, the drug manufacturers can seek prescription support from the doctors only for the indications as approved by the appropriate government authorities.

Even the USFDA had articulated, “the best way to address any concerns that the information about those (off-label) uses is not reaching medical practitioners is to get those uses in the labeling. We believe that the risks of allowing drug companies to distribute journal articles and other information about off label uses far outweigh any benefits.”        

Since long, most of the drug regulators across the world, including the Drug Controller General of India (DCGI) have prohibited the sales promotion for unapproved uses of drugs to doctors. Nevertheless, the practice continues ignoring its serious consequences.

Monitoring of ‘off-label’ use is challenging: 

Monitoring of off-label use of medicines is quite challenging too by the drug regulators, especially in India, where post marketing surveillance is generally just on paper.

In this regard, a recent research study that I shall refer to below in this article, has quite appropriately suggested, “Future electronic health records should be designed to enable post market surveillance of treatment indications and treatment outcomes to monitor the safety of on and off-label uses of drugs.”

As India intends to move towards the ‘Digital’ space, this suggestion would be quite implementable by the DCGI, as the ‘Smart Cities’ start coming up.

Some examples of extensive off-label usages: 

According to the study done by a team of experts in medical information – Iodine, using the top drugs by number of monthly prescriptions, the following is a list of 4 medications with surprising off-label uses:

Drug Approved Indication Off-label Indication
Abilify (Aripiprazole) Schizophrenia, Bipolar Disorder, Major Depressive Disorder (adjunctive), Autism-related Irritability, Agitation associated with Schizophrenia or Bipolar Mania, other Insomnia
Lyrica (Pregabalin) Management of: neuropathic pain associated with diabetic peripheral neuropathy, post herpetic neuralgia, fibromyalgia, neuropathic pain associated with spinal cord injury; adult patients with partial onset seizures (adjunctive) Anxiety
Namenda (Memantine) Moderate to severe dementia of the Alzheimer’s type ADHD, OCD
Synthroid (Levothyroxine) Low thyroid hormone levels, some types of goiters, management some types of thyroid cancers Depression

Off-label use and increasing risks of drug safety: 

In its November 02, 2015 online issue, JAMA Internal Medicine published an article titled, “Association of Off-Label Drug Use and Adverse Drug Events (ADE) in an Adult Population.” The objective of this study was to monitor and evaluate off-label use of prescription drugs and its effect on ADEs in an adult population.

This particular study assumes importance, as off-label use of prescription drugs without strong scientific evidence has been identified as an important contributor to preventable Adverse Drug Events (ADEs), especially in children. However, despite concerns in this regard, no systematic investigation on the effects of off-label drug use in adult populations is being performed, regularly.

The detail analysis of this study reveals that not only is the benefit of off-label prescription is uncertain, but the risks of ADEs could make the ‘risk-benefit ratio’ quite unfavorable. So much so that in a large number of cases, no drug treatment will be a much better option.

According to the authors, the risk for ADEs grew as the number of prescription drugs the patient used increased. For example, patients using eight or more drugs had more than a 5-fold increased risk for ADEs compared with patients who used one to two drugs.

The study involving 46,021 adult patients, receiving 151,305 prescriptions between January 2005 and December 2009 was done in Canada. Of those prescriptions, more than 10 percent were prescribed for off-label use. Interestingly, out of that group, more than 80 percent prescriptions were for off-label uses without any robust scientific evidence supporting the use.

Based on the findings the researchers concluded that off-label use of prescription drugs is associated with ADEs.

The article suggested:

  • Caution should be exercised in prescribing drugs for off-label uses that lack strong scientific evidence.
  • Future electronic health records should be designed to enable post market surveillance of treatment indications and treatment outcomes to monitor the safety of on and off-label uses of drugs.

Pharma industry strongly opposes off-label use, when it suits them:

Interestingly, pharma industry vehemently opposes off-label use of drugs, when it suits them.

To give just a couple of examples, recently a new law that permits prescribing of drugs for off-label uses in France has reportedly been strongly opposed by the pharmaceutical industry in Europe.

Pharma trade associations argue, “the above move of France is directly in opposition to European Union’s laws that prohibit member states from supporting off-label use for economic purposes, and is a trend that undermines the current regulatory framework and could put patients’ health at risk.”

Besides France, they have also submitted a complaint against Italy to the European Commission over the country’s new off-label rules.

Common methods followed for off-label marketing:

The other side of the story is that, reportedly many pharma companies continue promoting off-label uses of drugs aggressively, for significant commercial gains.

According to ‘The Centers for Medicare & Medicaid Services (CMS) – a federal agency within the United States Department of Health and Human Services, some of the off-label drug promotion methods of the pharmaceutical companies are as follows:

• Paying incentives to sales representatives based on sales for off-label use

• Paying kickbacks to physicians to prescribe drugs for off-label use

• Disseminating misleading posters promoting off-label use

• Paying physicians:

- To pretend to be the authors of articles about off-label uses when the articles were actually written by manufacturers’ agents

- To serve as members of “advisory boards” promoting off-label use

- To travel to resort locations to listen to promotions about off-label use

- To give promotional lectures in favor of off-label use to fellow practitioners

• Publicizing studies showing efficacy of off-label uses, while suppressing studies showing no efficacy.

Even the Uniform Code of Pharmaceutical Marketing Practices (UCPMP) of the Government of India does not allow such sales and marketing practices. But these all continue to happen, unabatedly.

A path much abused?

Although most of the drug companies publicly advocate self regulation to avoid unethical marketing practices, the situation on the ground is much different, across the world. 

The following are just a few examples of serious business consequences faced by some of the well-known global pharma and biotech majors, besides many others, from the United States Department of Justice, for alleged off-label promotion of drugs: 

  • On November 4, 2013, Johnson & Johnson (J&J) was asked to pay more than US$ 2.2 billion to resolve criminal and civil liability arising from allegations relating to the prescription drugs Risperdal, Invega and Natrecor, including promoting for uses not approved as safe and effective by the USFDA and payment of kickbacks to physicians and to the nation’s largest long-term care pharmacy provider.  
  • On July 30, 2013, Wyeth Pharmaceuticals Inc., a pharmaceutical company acquired by Pfizer, Inc. in 2009, agreed to pay US$490.9 million to resolve its criminal and civil liability arising from the unlawful marketing of the prescription drug Rapamune for uses not approved as safe and effective by the USFDA. 
  • On December 19, 2012, Amgen Inc. pleaded guilty and paid US$762 million to resolve criminal liability and false claims allegations.
  • On July 2, 2012 GlaxoSmithKline LLC (GSK) pleaded guilty and paid US$3 billion to resolve its criminal and civil liability arising from the company’s unlawful promotion of certain prescription drugs, its failure to report certain safety data, and its civil liability for alleged false price reporting practices. This resolution is the largest health care fraud settlement in the US history and the largest payment ever by a drug company, so far. 
  • On May 7, 2012, Abbott Laboratories Inc. pleaded guilty and agreed to pay US$1.5 billion to resolve its criminal and civil liability arising from the company’s unlawful promotion of the prescription drug Depakote for uses not approved as safe and effective by the USFDA.  This resolution is the second largest payment by a drug company and includes a criminal fine and forfeiture totaling US$700 million and civil settlements with the federal government and the states totaling US$800 million.  Abbott also was reportedly subjected to court-supervised probation and reporting obligations for Abbott’s CEO and Board of Directors.
  • On October 21, 2011, Pfizer Inc. agreed to pay US$14.5 million to resolve false claims allegations related to its marketing of the drug Detrol. 
  • On June 10, 2011, Novo Nordisk was asked to pay US$25 million to resolve allegations of off-label promotion of Novoseven.
  • On September 30, 2010, Novartis agreed to pay US$422.5 million to settle criminal and civil investigations into the marketing of the anti-seizure medicine Trileptal and five other drugs. The government accused Novartis of mislabeling, paying illegal kickbacks to health care professionals through speaker programs, advisory boards, entertainment, travel and meals. 

Hence, it appears that the path followed by many pharma players to inform the doctors about the judicious off-label use of drugs only in circumstances where approved treatments have failed, is being much abused. 

A conflict of interest? 

Many doctors believe that there is also a distinct upside for off-label use of drugs, as flexibility of a physician to prescribe drugs off-label offers important advantages too, especially in circumstances where approved treatments have failed. This is indeed true and indisputable.

However, the reality is, many pharma industry, in general, actively encourage off-label use of drugs for commercial benefits through expanded use of their respective brands.

Aggressive drug promotion for various off-label uses, reportedly being so widespread and indiscriminate, many physicians can’t even remember the approved indications of drugs. Hence, they do not necessarily go for off-label use only when approved treatments have failed.  In this context, on November 23, 2015, ‘The Wall Street Journal (WSJ)’ in an article titled, “Risk of Off-Label Uses for Prescription Drugs” reported as follows:

“A 2009 study published in the journal Pharmacoepidemiology and Drug Safety found that 1,199 physicians in a national survey were able to identify the FDA-approved indication of 22 drugs only about 55% of the time. The physicians surveyed included primary-care doctors and psychiatrists.” 

On the other hand, the patients generally expect that the prescribed drugs will be safe. They want to administer evidence based approved medicines. Some of them have even started expressing that these evidences must also be disclosed to them.

Hence, there seems to exist a clear conflict of interest in this matter between the patients, drug manufacturers and perhaps the doctors, as well.

Conclusion:

The magnitude of general off-label use of drugs is reportedly increasing and is likely to increase further, exposing patients to increased risks of ADEs.  Although the business consequences of getting engaged in this unwanted process indiscriminately could at times be quite adverse, in the balance of probability between slim chances of getting caught, and expected creamy return, many pharma players continue to feel that this risk is worth taking.

Therefore, the moot question that needs a pragmatic answer is, for patients’ safety, when the global and local pharma majors talk about prescriptions of only impeccable evidence based medicine, do they walk the talk?

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

 

Pioglitazone Conundrum: Should The Drug Regulator Step Over The Line?

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Recent order of the Indian drug regulator to withdraw all formulations of the well known, yet controversial, anti-diabetic drug – Pioglitazone from the domestic market has created a flutter in the country, ruffling many feathers at the same time.

Withdrawal of any drug from the market involves well-considered findings based on ongoing robust pharmacovigilance data since the concerned product launch. To ascertain long-term drug safety profile, this process is universally considered as important as the processes followed for high quality drug manufacturing and even for R&D.

A paper titled, “Withdrawing Drugs in the U.S. Versus Other Countries” brings to the fore that one of the leading causes of deaths in the United States is adverse drug reaction. Assessing enormity and impact of this issue, the United Nations General Assembly for the first time in 1979 decided to publish a list of banned pharmaceutical products that different countries may use for appropriate decisions keeping patients’ safety in mind, as they will deem necessary from time to time.

An interesting finding:

Quite interestingly, the paper also highlights:

“There are a number of pharmaceuticals on the market in the USA that have been banned elsewhere and similarly, there are some drug products that have been banned in the United States, but remain on the market in other countries.”

Different policies in different countries:

The reason for the above finding is mainly because, various countries follow different policies to address this important health related issue. For example, though the United States will withdraw drugs based on the decision taken by its own FDA, it will also compare the action taken by countries like, UK, Japan, Australia and Sweden on the same subject.

However, many experts do believe that United Nations must take greater initiative to make all concerned much more aware about the UN list of dangerous drugs, which should be continuously updated to expect the least.

Need transparency in pharmacovigilance:

Pharmacovigilance has been defined as:

“The task of monitoring the safety of medicines and ensuring that the risks of a medicine do not outweigh the benefits, in the interests of public health.”

An article on Pharmacovigilance by A.C. (Kees) van Grootheest and Rachel L. Richesson highlights as follows:

“The majority of post marketing study commitments are never initiated, and the completion of post marketing safety studies (i.e., phase IV studies) declined from 62% between 1970 and 1984 to 24% between 1998 and 2003.”

Thus, in many countries, due to lack of required transparency in the pharmacovigilance process, harmful drugs continue to remain in the market for many years before they are withdrawn, for various reasons.

The above paper strongly recommends, “While there might be monetary benefits for each country in keeping these drugs on the market, the U.N. must step up the visibility of the withdrawal of dangerous drugs list.”

Recent Pioglitazone withdrawal in India:

Recently in India, the Ministry of Health under Section 26A of the Drugs and Cosmetics Act, 1940 has suspended the manufacture and sale of Pioglitazone, along with two other drugs, with immediate effect, through a notification issued on June 18, 2013.

As per the Drugs and Cosmetic Rule 30-B, import and marketing of all those drugs, which are prohibited in the country of origin, is banned in India. Just as in the United States, the Ministry of health, while taking such decisions in India, compares long-term safety profile of the concerned drugs in countries like, USA, UK, EU and Australia.

A Parliamentary Standing Committee of India has already indicted the drug regulator for not taking prompt action on such issues to protect patients’ treatment safety.

Pioglitazone: the risk profile:

In India:

A leading medical journal (JAPI) cautions:

“Given the possible risk of bladder cancer, physicians have to be extremely careful about using pioglitazone indiscriminately in the future.”

The JAPI article continues to state:

“We require more robust data on the risk of bladder cancer with pioglitazone and Indian studies are clearly needed. Till that time, we may continue the use of this drug as a second or third line glucose-lowering agent. In all such cases, the patient should be adequately informed about this adverse effect and drug should be used in as small a dose as possible, with careful monitoring and follow up.”

In the USA:

In 2011 The US FDA as a part of its ongoing safety review of pioglitazone informed physicians and the public that use of this drug for more than 12 months is linked to an increased risk of bladder cancer.

The USFDA review is reportedly based on “an ongoing 10-year observational cohort study as well as a nested, case-control study of the long-term risk of bladder cancer in over 193,000 patients with diabetes who are members of the Kaiser Permanente Northern California (KPNC) health plan.”

Based on this finding US FDA directed that physicians should:

  • Not use pioglitazone in patients with active bladder cancer.
  • Use pioglitazone with caution in patients who have a prior history of bladder cancer, adding, “The benefits of blood sugar control with pioglitazone should be weighed against the unknown risks for cancer recurrence.”
  • Tell patients to report any signs or symptoms of “blood in the urine, urinary urgency, pain on urination, or back or abdominal pain, as these may be due to bladder cancer.”
  • Urge patients to read the pioglitazone medication guide.
  • Report adverse events involving pioglitazone medicines to the FDA MedWatch program.

The moot point:

Considering the above US FDA directives in the Indian context, the moot point therefore is, whether it will be possible for the drug regulator to ensure that physicians and the patients in India follow such steps for drug safety with pioglitazone?

In Canada:

Another new Canadian study has again reportedly linked Pioglitazone with risks of bladder cancer and cautioned, “physicians, patients and regulatory agencies should be aware of this association when assessing the overall risks and benefits of this therapy.”

Pioglitazone and its combinations banned in France and Germany:

After a government-funded study, tracking diabetics from 2006 to 2009, concluded that Pioglitazone increases bladder cancer risk, the French Medicines Agency (FMA) announced withdrawal of Pioglitazone along with its fixed-dose combination with Metformin, as well.

FMA also advised doctors to stop prescribing Pioglitazone, plain or in combination, and asked patients, who are on this drug to consult their doctors immediately.

Simultaneously, German health authorities also acted on similar lines.

An intriguing comment by the Indian drug regulator:

Keeping all these in view, it is indeed intriguing to note that the Indian drug regulator is reportedly open to re-examine the case of pioglitazone and revoking its ban in India, if strong scientific evidences emerge in support of safety and efficacy of the drug.

However, the question then comes up is what more new scientific evidences that the Indian drug regulator is now expecting, especially when the pharmacovigilance studies are almost non-existent in India?

Moreover, such comments of the drug regulator not only prompt raising doubts about the fragility and hastiness of his own decision of banning Pioglitazone in India, but also amply demonstrate lack of seriousness in his part on this extremely important decision on drug safety?

‘Drug Product Liability Claims’ in India virtually non-existant:

In most of the developed countries, appropriate regulations are in place for product liability claims.

Under this law, if any patient suffers injury in any form while administering  a pharmaceutical drug, the patient concerned is eligible to make pharmaceutical-drug-based product liability claims, which usually involve a huge amount of money by any imaginable standard.

These claims are based on:

  • Improperly marketed pharmaceutical drugs. This category includes:

- Failure to provide adequate or accurate warnings regarding a dangerous side effect.

- Failure to provide adequate instructions on safe and appropriate use of the drug.

- The “bad advice”, which may have been given by the manufacturer or by a doctor, pharmacist, sales rep, or some other medical provider.

In the United States drug safety and effectiveness related litigations reportedly also include:

-        Criminal and civil complaints brought by the U.S. Department of Justice.

-        Lawsuits brought by state Attorney Generals and private plaintiffs under state consumer protection acts and other causes of action.

In India, closer to the above system there is a law in paper, named as “Products Liability”. This law deals with the liability of manufacturers, wholesalers, distributors, and vendors for injury to a person or property caused by dangerous or defective products. The aim of this law is to help protecting consumers from dangerous or defective products, while holding manufacturers, distributors, and retailers responsible for putting into the market place products that they knew or should have known were dangerous or defective. However, in reality, there are hardly any damages slapped by consumers on to the manufacturers in India under this ‘Product Liability’ law.

It may sound however bizarre, but is a hard fact that many drugs in Fixed Dose Combinations (FDCs) had never even gone through any form clinical trials on human volunteers before they were for the first time allowed to be marketed in India by the drug regulators.

In absence of any active steps taken by the government to educate and encourage patients to make use of this law, patients, by and large, would continue to pay a heavy price for their ignorance, keeping their mouth shut all the way, while using:

- Defectively manufactured pharmaceutical drugs.

- Pharmaceutical drugs with dangerous side effects.

- And even improperly marketed pharmaceutical drugs.

As stated before, it is worth repeating, neither is their any functional pharmacovigilance system in place in India.

Drug product liability suit for Pioglitazone in the United States:

Just to cite an example, one report indicates:

“According to court filings, all of the Actos (Pioglitazone) lawsuits pending in the Western District of Louisiana allege Takeda Pharmaceuticals failed to provide adequate warnings to doctors and patients regarding the drug’s association with an increased risk of bladder cancer. Last month (April, 2013), the nation’s first trial involving Actos bladder cancer allegations ended with a Los Angeles Superior Court jury awarding $6.5 million to a plaintiff who was diagnosed with the disease after taking the drug for four years”. However, the judge overseeing the case granted Takeda Pharmaceuticals’ request to set aside the verdict.

The report also indicates, ‘more than 1,200 Actos bladder cancer claims are pending in the Louisiana litigation. Additional Actos lawsuits have been filed in state litigations in California and Illinois.’

Indian doctors and manufacturers protest together against Pioglitazone ban:

It is equally intriguing to note, despite serious life threatening side-effect and restricted usage profile of Pioglitazone, as established internationally through robust and large clinical studies, both the doctors and the Pioglitazone manufacturers in India are urging the government to lift ban on this drug immediately, keeping the silent patient community in the front line, as usually happens all over.

A news report highlighted that ‘doctors flayed the ban on anti-diabetes drug Pioglitazone and requested the Centre to reverse its decision in interest of patients.’

Another media report highlighted, major drug makers are strongly opposing the move of the government to ban Pioglitazone, in India.

Conclusion:

Without generating another set of robust evidence proving contrary to what has been already concluded in the United States and EU based on strong supporting pharmacovigilance data, if the Indian drug regulator revokes the ban of Pioglitazone, it will be construed as a huge compromise with patients’ safety interest with this drug.

This issue assumes even greater importance, when the ‘drug product liability’ system is almost dysfunctional in India.

The other alternative of the drug regulator is to revoke the ban, wilting under combined pressure of the manufacturers and doctors and ask for safety warnings trying to emulate, as it were, what has been done by the US FDA.  

In which case, with full knowledge that it is virtually impossible for any one to comply with the above US FDA requirements in India, will the drug regulator not step over the line, yet again?

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.