Here's a roundup of top developments in the biotech space over the last 24 hours:

Stocks In Focus

Europe Backs Novavax's COVID-19 Shot For Adolescents

The European Union has recommended expanded conditional approval of Novavax Inc's NASDAQ:NVAX Nuvaxovid (NVX-CoV2373) COVID-19 vaccine for adolescents ages 12-17. 

Separately, the Taiwan Food and Drug Administration has granted emergency use authorization for the Nuvaxovid COVID-19 vaccine in individuals ages 18 and over.

Novavax and Taiwan have executed a supply agreement, and the doses for Taiwan would represent the first shipment of Nuvaxovid to a country participating under the COVAX Facility.

Sanofi-GSK's Beta-Containing COVID-19 Vaccine Shows Omicron Efficacy 

Sanofi SA SNY and GSK plc GSK have announced positive data from their vaccine trial of adjuvanted bivalent D614 and Beta (B.1.351) vaccine candidate. 

"Sanofi-GSK's vaccine is the first candidate to demonstrate efficacy in a placebo-controlled trial in an environment of high Omicron variant circulation," Sanofi said in a statement.

In a trial involving 13,000 adults, the vaccine demonstrated an efficacy rate of 64.7% against symptomatic COVID and 72% against infections specifically caused by the omicron variant.

BioNTech's Testicular Cancer CAR-T Receives Priority Medicines Tag In Europe

The European Medicines Agency has granted Priority Medicines designation to BioNTech SE's NASDAQ:BNTX BNT211 for the third- or later-line treatment of testicular germ cell tumors.

The product candidate is currently being investigated in an ongoing Phase 1/2 study to evaluate the safety and preliminary efficacy in heavily pretreated patients with relapsed or refractory advanced solid tumors.

FDA Slaps Clinical Hold On Sarepta's Duchenne Trial

The FDA has instituted a clinical hold on Sarepta Therapeutics Inc's NASDAQ:SRPT SRP-5051 (vesleteplirsen) trial in Duchenne muscular dystrophy patients who are amenable to exon 51 skipping. 

The hold in Part B of Study 5051-201, also known as MOMENTUM, follows a serious adverse event of hypomagnesemia (low serum magnesium level in the blood). 

FDA is requesting information on all cases of hypomagnesemia, including a small number of non-serious grade 2 cases.

Celyad Announces Management Transition

Celyad Oncology SA's NASDAQ:CYAD CEO & CFO Filippo Petti has resigned to pursue other opportunities.

Michel Lussier, a co-founder of the company, has been named the interim CEO.

FDA Sets AdComm Meeting For Cytokinetics's Omecamtiv Mecarbil Application

The FDA has scheduled the Cardiovascular and Renal Drugs Advisory Committee meeting for Cytokinetics Incorporated NASDAQ:CYTK's marketing application for omecamtiv mecarbil.

The meeting is scheduled for Dec. 13, 2022. The FDA has assigned a PDUFA target date of February 28, 2023. 

Omecamtiv mecarbil is a cardiac myosin activator for heart failure with reduced ejection fraction.

Insider Trading

Tracon Pharmaceuticals Inc NASDAQ:TCON: Opaleye Management reported purchasing 841,989 shares at an average price of $1.31/share in form 4 filing.

Voyager Therapeutics Inc NASDAQ:VYGR: EcoR1 Capital LLC reported purchasing 477,400 shares at an average of $5.58/share in form 4 filing.

On The Radar

PDUFA Dates

Bristol Myers Squibb & Co NYSE:BMY: Supplemental marketing application for Breyanzi for relapsed or refractory LBCL after the failure of first-line therapy is currently under FDA Priority Review.