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Merk Says Experimental Covid Pill Cuts Risk of Death, Hospitalization by 50%

This undated image provided by Merck & Co. shows their new antiviral medication. Pharmaceutical company Merck & Co. announced Friday, Oct. 1, 2021, that its experimental COVID-19 pill reduced hospitalizations and deaths by half in people recently infected with the coronavirus and that it would soon ask health officials in the U.S. and around the world to authorize its use. (Merck & Co. via AP)

A pill to treat Covid-19 successfully reduced the most severe outcomes of the illness that clinical trials of the medication were stopped early so more people might benefit, drugmaker Merck & Co. announced Friday. If cleared, Merck’s drug would be the first pill shown to treat Covid, a potentially major advance in efforts to fight the pandemic.

According to a company press release, a five-day course of the drug, called Molnupiravir, was found to cut Covid hospitalizations and related deaths in half. As a result, Merck said it intends to ask health officials in the United States and worldwide for emergency authorization for the pill.

If cleared, it would be the first oral medication shown to treat Covid, a potentially significant advance in fighting the pandemic. All Covid therapies now authorized in the U.S. require an IV or injection.

Merck and its partner Ridgeback Biotherapeutics said early results showed patients who received Molnupiravir within five days of Covid symptoms had about a 50 percent reduction in the rate of hospitalization and death as patients who received a placebo pill. The study tracked 775 adults with mild-to-moderate Covid who were considered at higher risk for severe disease due to health problems such as obesity, diabetes, or heart disease.

None had been vaccinated.

Among patients taking Molnupiravir, 7.3 percent were hospitalized or died at the end of 30 days, compared with 14.1 percent of those getting the dummy pill. But, according to Merck, there were no deaths in the drug group after that period compared with eight deaths in the placebo group.

A safe, affordable, and effective oral antiviral would be a huge advance in the fight against Covid,” Dr. Peter Horby, a professor of emerging infectious diseases at the University of Oxford in the United Kingdom, said in a statement.

While the drug previously looked promising in the lab, he said the real test was whether it showed a true benefit among patients, which it did. “Many drugs fail at this point, so these interim results are very encouraging.”

The results were released by the company and have not been peer-reviewed. However, Merck said it plans to present them at a future medical meeting.

I get calls from physicians in clinics and emergency rooms almost every day, asking, ‘What can I give this patient who doesn’t need to be hospitalized?

Meanwhile, an independent group of medical experts monitoring the trial recommended stopping it early because the interim results were strong. Company executives said they are in discussions with the Food and Drug Administration and plan to apply for emergency use authorization as soon as possible. They also plan to submit marketing applications to other regulatory bodies worldwide.

It exceeded what I thought the drug might be able to do in this clinical trial,” Dr. Dean Li, vice president of Merck research, said. “When you see a 50 percent reduction in hospitalization or death, that’s a substantial clinical impact.”

Both groups in the Merck trial reported side effects, but they were slightly more common among those who received a dummy pill. The company did not specify the problems.

Earlier study results showed the drug did not benefit patients who were already hospitalized with severe disease.

The U.S. has approved one antiviral drug, Remdesivir, specifically for Covid, and allowed emergency use of three antibody therapies that help the immune system fight the virus. But all the drugs have to be given by IV or injection at hospitals or medical clinics, and supplies have been stretched by the latest surge of the delta variant.

Need for convenient treatment

Health experts, including the top U.S. infectious disease expert Dr. Anthony Fauci, have long called for a convenient pill that patients could take when Covid symptoms first appear, much the way the decades-old flu medication Tamiflu helps fight influenza. Such medications are seen as key to controlling future waves of infection and reducing the impact of the pandemic.

Dr. John Sanders, chief of infectious diseases at Atrium Health Wake Forest Baptist in North Carolina, called the results “spectacular.

If the encouraging interim results are ultimately proven, Sanders said, it would be a boon to physicians desperate for outpatient treatments of Covid.

I get calls almost every day from physicians in clinics and emergency rooms, asking ‘What can I give this patient who doesn’t need to be hospitalized?’” he said.

This is part of the reason there’s been so much excitement for unproven therapies like ivermectin or hydroxychloroquine,” Sanders said. “Patients and doctors, really want to something convenient that can be given as an outpatient. Here we now finally have a proven antiviral.

Merck’s pill works by interfering with the coronavirus’s enzyme to copy its genetic code and reproduce itself. It has shown similar activity against other viruses.

The U.S. government has committed to purchase 1.7 million doses of the drug if authorized by the FDA. Merck has said it can produce 10 million doses by the end of the year and has contracts with governments worldwide. The company has not announced prices.

Several other companies, including Pfizer and Roche, are studying similar drugs that could report results in the coming weeks and months.

Merck had planned to enroll more than 1,500 patients in its late-stage trial before the independent board stopped it early. The results reported Friday included patients enrolled across Latin America, Europe, and Africa. Executives estimated about 10 percent of patients studied were from the U.S.

Source: Associated Press
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