The U.S. government has purchased 650,000 additional doses of Eli Lilly and Company's (NYSE: LLY) neutralizing antibody bamlanivimab (LY-CoV555) 700 mg. The purchase agreement is for $812.5 million and the doses will be delivered through January 31, 2021, with at least 350,000 of the additional doses delivered in December 2020.

Janssen-Cilag International N.V., part of the Janssen Pharmaceutical Companies of Johnson & Johnson, has initiated a rolling submission with the European Medicines Agency (EMA) for its investigational single-dose vaccine candidate for the prevention of COVID-19.

The EMA's Committee for Medicinal Products for Human Use (CHMP) enabled a rolling review of the investigational single-dose Janssen COVID-19 vaccine candidate based principally on positive non-clinical data showing that the vaccine candidate elicits a robust immune response, as demonstrated by neutralizing antibodies.

Pfizer Inc. (NYSE: PFE) and BioNTech SE (Nasdaq: BNTX) announced today that the Medicines & Healthcare Products Regulatory Agency (MHRA) in the U.K. has granted a temporary authorization for emergency use for their COVID-19 mRNA vaccine (BNT162b2), against COVID-19. This constitutes the first Emergency Use Authorization following a worldwide Phase 3 trial of a vaccine to help fight the pandemic.

Moderna, Inc. (Nasdaq: MRNA), a biotechnology company pioneering messenger RNA (mRNA) therapeutics and vaccines to create a new generation of transformative medicines for patients, today announced that the primary efficacy analysis of the Phase 3 study of mRNA-1273 conducted on 196 cases confirms the high efficacy observed at the first interim analysis. The data analysis indicates a vaccine efficacy of 94.1%.

The Phase 3 ENSEMBLE study of the single-dose regimen of JNJ-78436735, the investigational vaccine candidate for the prevention of COVID-19 being developed by the Janssen Pharmaceutical Companies of Johnson & Johnson, continues to enroll and vaccinate study participants. ENSEMBLE is proceeding to enroll up to 60,000 participants worldwide.

Health Canada granted authorization under the Interim Order Respecting the Importation, Sale and Advertising of Drugs for Use in Relation to COVID-19 for the use of bamlanivimab (LY-CoV555) as a treatment for adults and pediatric patients 12 years of age or older with mild to moderate COVID-19 who weigh at least 40 kg and are at high risk of progressing to severe COVID-19 illness and/or hospitalization, Eli Lilly and Company (NYSE: LLY) announced.

Positive high-level results from an interim analysis of clinical trials of AZD1222 in the UK and Brazil showed the vaccine was highly effective in preventing COVID-19, the primary endpoint, and no hospitalisations or severe cases of the disease were reported in participants receiving the vaccine. There were a total of 131 COVID-19 cases in the interim analysis.