Omicron-specific Sinopharm, Sinovac vaccine candidates cleared for clinical trial | Inquirer News

Omicron-specific Sinopharm, Sinovac vaccine candidates cleared for clinical trial

/ 06:17 PM April 16, 2022

BEIJING — COVID-19 vaccine candidates developed by a Sinopharm subsidiary and Sinovac Biotech to target the Omicron variant were approved for clinical trials in Hong Kong, the companies said on Saturday.

Scientists worldwide are racing to study upgraded injections against Omicron, as data indicated that antibodies elicited by vaccines based on older strains show weaker activity to neutralise the highly transmissible variant.


The two candidates from units of Sinopharm subsidiary China National Biotec Group (CNBG) and one from Sinovac contain inactivated or “killed” coronavirus and are similar to vaccines that the companies are supplying in China and overseas, the companies said in statements.

The Sinopharm candidates will be tested as boosters in adults who have already received two or three vaccine doses, CNBG said. It did not specify which vaccine products the trial participants would have received before taking the experimental booster, or how many subjects would be recruited.


Sinovac said it will push forward studies in its existing CoronaVac vaccine’s protection against emerging variants.

A Chinese study showed that a fourth dose of BBIBP-CorV, an existing Sinopharm COVID vaccine, did not significantly lift antibody levels against Omicron when administered six months after a third booster dose to a regular two-dose regimen.

While the fourth dose restored antibody levels to around the peaks that followed the third dose, researchers said new vaccines would offer a better alternative as future boosters.


Omicron community transmission in Metro Manila confirmed – DOH

For more news about the novel coronavirus click here.
What you need to know about Coronavirus.
For more information on COVID-19, call the DOH Hotline: (02) 86517800 local 1149/1150.

The Inquirer Foundation supports our healthcare frontliners and is still accepting cash donations to be deposited at Banco de Oro (BDO) current account #007960018860 or donate through PayMaya using this link.

Read Next
Don't miss out on the latest news and information.

Subscribe to INQUIRER PLUS to get access to The Philippine Daily Inquirer & other 70+ titles, share up to 5 gadgets, listen to the news, download as early as 4am & share articles on social media. Call 896 6000.

TAGS: clinical trial, COVID-19, Omicron, Sinopharm, Sinovac, vaccine
For feedback, complaints, or inquiries, contact us.

Subscribe to our daily newsletter

© Copyright 1997-2022 | All Rights Reserved

We use cookies to ensure you get the best experience on our website. By continuing, you are agreeing to our use of cookies. To find out more, please click this link.