Pfizer, AZ, Moderna and more pledge not to rush COVID-19 vaccines

With President Donald Trump and others touting accelerated timelines for COVID vaccines—potentially ending in an emergency authorization before the U.S. election—public confidence in the process has taken a hit. But nine biopharma CEOs are seeking to turn that sentiment around with a joint safety and efficacy pledge

Tuesday, the CEOs of AstraZeneca, BioNTech, GlaxoSmithKline, Johnson & Johnson, Merck, Moderna, Novavax, Pfizer and Sanofi vowed to not seek approvals or emergency use authorizations for their vaccine candidates without conclusive positive data. 

The drugmakers will "only submit for approval or emergency use authorization after demonstrating safety and efficacy through a phase 3 clinical study that is designed and conducted to meet requirements of expert regulatory authorities such as FDA," they said.

RELATED: Pfizer CEO says coronavirus vaccine data will roll in fast enough for results late October

Pfizer CEO Albert Bourla last week said his company expects to know by late October whether its vaccine works. Aside from that drugmaker, Moderna and AstraZeneca are also in phase 3 testing in the U.S., but it's unclear exactly when they could see early data.

Meanwhile, Trump and other officials in his administration have continued emphasizing that a vaccine is nearing. 

On Friday, Trump said he spoke with Pfizer CEO Albert Bourla and that the company expects results “very, very shortly.” And in a Labor Day press briefing, Trump said a vaccine could be available by a "very special day,” appearing to reference the November 3 election. 

RELATED: A COVID-19 vaccine in early November? 'Extremely unlikely, but not impossible': Warp Speed head Slaoui 

The CDC is already working with states and localities to prepare for potential vaccine distribution as early as November 1. While the goal appears to center on the election, NIH director Francis Collins recently defended the effort, telling CNN the CDC is right to prepare for distribution in case any of the vaccines show early efficacy. 

Even as the programs move ahead at record speeds, it’s “extremely unlikely, but not impossible” a vaccine will be ready in early November, Operation Warp Speed head and GlaxoSmithKline veteran Moncef Slaoui told NPR last week. He would resign if he felt inappropriate pressure to rush the process, he previously told Science.