Drug approvals

Pedestrians walk past Pfizer world headquarters in New York on Monday Nov. 9, 2020. Pfizer says an early peek at its vaccine data suggests the shots may be 90% effective at preventing COVID-19, but it doesn't mean a vaccine is imminent. (AP Photo/Bebeto Matthews)

In this Dec. 12, 2019 photo provided by Biogen, a scientist works on Alzheimer’s disease research in a laboratory at the drugmaker’s headquarters in Cambridge, Mass. On Friday, Nov. 6, 2020, a panel of outside experts will meet to advise the Food and Drug Administration on the drug, called aducanumab from Biogen Inc. and Japan’s Eisai Co. The drug does not cure or reverse Alzheimer’s; the claim is that it modestly slows the rate of decline. (David A. White/Biogen via AP)

FILE - In this Wednesday, June 24, 2020 file photo, a volunteer receives an injection at the Chris Hani Baragwanath hospital in Soweto, Johannesburg, as part of Africa's first participation in a COVID-19 vaccine trial developed at the University of Oxford in Britain in conjunction with the pharmaceutical company AstraZeneca. On Friday, Oct. 23, 2020, AstraZeneca Inc. announced that the Food and Drug Administration is letting it resume testing of its COVID-19 vaccine candidate in the U.S. (Siphiwe Sibeko/Pool via AP)

FILE - In this July 17, 2020 file photo, a senior citizen holds the hand of a care coordinator at a Health facility in Miami. Federal health officials on Friday unveiled a plan to get approved coronavirus vaccines to nursing home residents free of cost, with the aid of two national pharmacy chains. No vaccine has yet been approved by the Food and Drug Administration, and the distribution program is contingent on that happening first. (AP Photo/Wilfredo Lee)

This image provided by Regeneron on Wednesday, Oct. 14, 2020, shows a vial of the company's Inmazeb medication. On Wednesday, the U.S. Food and Drug Administration said it has approved the drug for treating Ebola in both adults and children. (Regeneron via AP)

FILE - In this Tuesday, May 13, 2014 file photo, AstraZeneca CEO Pascal Soriot leaves the British Parliament's Business Innovation and Skills Committee after a hearing in central London. Two firms developing COVID-19 vaccines say pharmaceutical companies are trying to give the public as much information as possible about their testing regimes as drugmakers and public health officials seek to boost confidence that any approved vaccine will be safe. AstraZeneca CEO Pascal Soriot and Paul Stoffels, chief scientific officer of Johnson & Johnson, said Thursday Sept. 24, 2020, that they recognize the coronavirus emergency demands increased transparency from vaccine developers to ensure the public has faith in the end product. (AP Photo/Lefteris Pitarakis, File)

FILE - In this Monday, July 27, 2020 file photo, a nurse prepares a shot as a study of a possible COVID-19 vaccine, developed by the National Institutes of Health and Moderna Inc., gets underway in Binghamton, N.Y. On Tuesday, Sept. 8, 2020, the top executives of nine drugmakers likely to produce the first vaccines against the new coronavirus said that they will stick to the highest ethical and scientific standards in testing and manufacturing and will make the well-being of those getting vaccinated their top priority. (AP Photo/Hans Pennink)

FILE - In this July 27, 2020, file photo, Nurse Kathe Olmstead, right, gives volunteer Melissa Harting, of Harpersville, N.Y., an injection as a study of a possible COVID-19 vaccine, developed by the National Institutes of Health and Moderna Inc., gets underway in Binghamton, N.Y. A letter from federal health officials instructing states to be ready to begin distributing a vaccine by Nov. 1 — two days before the election — has met, not with exhilaration, but with suspicion among public health experts and others. (AP Photo/Hans Pennink, File)

FILE - This Aug. 2, 2018, file photo shows the U.S. Food and Drug Administration building behind FDA logos at a bus stop on the agency's campus in Silver Spring, Md. Investors are driving shares of drug developer BioMarin down by a third after U.S. regulators rejected its potentially game-changing gene therapy for hemophilia A patients. The FDA's rejection late Tuesday, Aug. 18, 2020, means BioMarin will have to complete an ongoing late-stage patient study. (AP Photo/Jacquelyn Martin, File)

President Donald Trump speaks at a news conference in the James Brady Press Briefing Room at the White House, Thursday, Aug. 13, 2020, in Washington. (AP Photo/Andrew Harnik)