J&J COVID-19 Vaccine Wins Backing of FDA Panel


An FDA advisory panel lent their support today to a rapid clearance for Janssen/Johnson & Johnson’s COVID-19 vaccine.

The Food and Drug Administration (FDA) is expected to quickly provide an emergency use authorization (EUA) for the vaccine following the recommendation by the panel. The FDA’s Vaccines and Related Biological Products Advisory Committee voted 22-0 on this question: Based on the totality of scientific evidence available, do the benefits of the Johnson & Johnson COVID-19 Vaccine outweigh its risks for use in individuals 18 years of age and older?

The Johnson & Johnson vaccine is expected to offer more convenient dosing and be easier to distribute than the two rival products already available in the US. Janssen’s vaccine is intended to be given in a single dose. In December, the FDA granted EUAs for the Pfizer-BioNTech and Moderna COVID-19 vaccines, which are each two-dose regimens.

Johnson & Johnson’s vaccine can be stored for at least 3 months at normal refrigerator temperatures of 2° C to 8°C (36°F to 46°F). Its shipping and storage fits into the existing medical supply infrastructure, the company said in its briefing materials for the FDA advisory committee meeting. In contrast, Pfizer’s vaccine is stored in ultra-cold freezers at temperatures between -80°C and -60°C (-112°F and -76°F), according to the Centers for Disease Control and Prevention (CDC).  Moderna’s vaccine may be stored in a freezer between -25°C and -15°C (-13°F and 5°F).

But FDA advisers focused more in their deliberations on concerns about Janssen’s vaccine, including emerging reports of allergic reactions.

The advisers also discussed how patients might respond to the widely reported gap between Johnson & Johnson’s topline efficacy rates compared to rivals. The company’s initial unveiling last month of key results for its vaccine caused an initial wave of disappointment, with its overall efficacy against moderate-to-severe COVID-19 28 days post vaccination first reported at about 66% globally. By contrast, results for the Pfizer and Moderna vaccines suggest they have efficacy rates of 95% and 94%.

But in concluding, the advisers spoke of the Janssen vaccine as a much needed tool to address the COVID-19 pandemic. The death toll in the United States attributed to the virus has reached 501,414, according to the World Health Organization.

“Despite the concerns that were raised during the discussion. I think what we have to keep in mind is that we’re still in the midst of this deadly pandemic,” said FDA adviser Archana Chatterjee, MD, PhD, of Rosalind Franklin University. “There is a shortage of vaccines that are currently authorized, and I think authorization of this vaccine will help meet the needs at the moment.”

Kerry Dooley Young is a freelance journalist based in Washington, D.C. She earlier covered health policy and the federal budget for Congressional Quarterly/CQ Roll Call and the pharmaceutical industry and the Food and Drug Administration for Bloomberg.  Follow her on Twitter at @ kdooleyyoung.

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