LONDON (Reuters)—Britain’s competition watchdog has accused Merck & Co of operating an unfair discount scheme for its medicine Remicade (infliximab) that it said was designed to restrict competition from so-called biosimilar copies.
The Competition and Markets Authority (CMA) says it had provisionally found the U.S. company’s European unit, Merck Sharp & Dohme (MSD), had abused its dominant position through the scheme, opening it up to potential financial penalties.
MSD says it did not believe it had broken competition rules.
Infliximab is used to treat rheumatoid arthritis, Crohn’s disease and ulcerative colitis.
The drug is proving an important test for the emerging biosimilars industry. It was the first antibody drug for which copycat versions were approved by European regulators, leading to the launch of discounted products from biosimilar drugmakers, including South Korea’s Celltrion, which works with Pfizer.
One person familiar with the investigation says MSD offered a discount to customers who continued to buy Remicade in the same quantities, but not if they started buying biosimilars, which amounted to an incentive not to switch.
Remicade has been a big seller for Merck over the years, but sales have been falling in the face of biosimilar competition, declining 29% last year to $1.27 billion. Merck sells the drug in Europe, while Johnson & Johnson markets it in the U.S.
Such biotech drugs are made inside living cells so it is impossible to make exact generic copies. Instead, regulators have come up with the notion of approving products that are “similar” enough to do the same job.
Manufacturing and developing biosimilars requires considerable expertise and is relatively costly, but the field is attracting growing investment as multiple blockbuster biotech medicines start to go off patent.
Cancer Drugs Next
This year has seen the launch in Europe of the first biosimilar copy of an antibody drug for cancer, opening up a major new disease area to cut-price competition.
The CMA, which opened its investigation in December 2015, says it proposed to find MSD and its parent Merck & Co jointly and severally liable for the alleged infringement.
The competition regulator can fine companies up to 10% of their global turnover if they are found to have breached competition law, although a CMA spokesman emphasizes this was a ceiling rather than a guideline for penalties.
MSD says it was cooperating fully with the CMA, adding it was confident the proceedings would show it had complied with the law.