日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Latest

5 vaccines in China set to finish phase 2 trials in July

By Zhang Zhihao | chinadaily.com.cn | Updated: 2020-05-15 17:20
Share
Share - WeChat
[Photo/IC]

China now has five vaccines, one vector and four inactivated, that have entered the first two phases of clinical trials in China, a senior scientist said on Friday. Vaccine recipients in phase II trials have reported no major adverse effects, and these vaccines are set to complete their phase II trials in July.

"As of today, vaccine development is generally progressing smoothly," Zeng Yixin, deputy director of the National Health Commission, said in a news briefing on Friday.

Zeng said some vaccine candidates are conducting phase I and II clinical trials concurrently in China, which is considered "an innovation" in the emergency approval mechanism of the National Medical Products Administration.

Right now, 2,575 volunteers in total have been administered the five vaccines, including 539 volunteers for phase I trials, Zeng said. "We have gained preliminary data for phase I trials on the vaccines' safety and ability to create protective antibodies."

The phase II trials, which enrolled 2,036 volunteers, aim to further evaluate the vaccines' safety and potency. "Some volunteers are taking more than one dose now, and relevant research is ongoing," he said.

"We have not recorded any major adverse effects for volunteers in these trials," he said. "If everything goes according to plan, these projects would finish their phase II trial in July."

China also has other types of vaccines in the works, but some have adjusted their research to improve efficacy, as "creating vaccine is a technique, but it is also a scientific exploration," Zeng said, adding more vaccine varieties are expected to be approved in June for clinical trials.

The recombinant adenovirus vector-based vaccine, developed by the Academy of Military Medical Sciences of the People's Liberation Army and Chinese firm CanSino Bio, entered its phase II trial on April 12.

A viral vector vaccine uses a chemically weakened virus, in this case an adenovirus, to transport pieces of the pathogen into the host tissue, according to the US Department of Health and Human Services.

As for the four inactivated vaccines, two are created by the China National Biotec Group Co Ltd, one by Sinovac Research & Development Co Ltd, and the manufacturer of the last one is unannounced as of writing.

An inactivated vaccine uses a killed version of the germ that causes a disease to trigger an immune response. This tried-and-true method is incredibly safe because dead germs can't cause illness.

Being a well-established technique, the quality of inactivated vaccines is more guaranteed and can be accepted more easily by other countries due to the robust international efficacy and safety standards in place, Wu Yuanbin, director of the bureau for social development at the Ministry of Science and Technology, said in a news briefing last month.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 国产精品福利资源在线 | 欧美综合自拍亚洲综合图片区 | 一区二区三区不卡免费视频97 | 久久综合图区亚洲综合图区 | A片欧美乱妇高特黄AA片片 | 成人毛片网站 | 精品国产精品 | 天天夜夜人人 | jvid精品资源在线观看 | 亚洲精品无码成人A片色欲 亚洲欧美日韩激情在线观看 | 九九视频精品全部免费播放 | 成人蜜桃av | 五月婷婷综合在线视频 | 美日韩免费视频 | 天天摸天天做天天爽 | 成年人在线视频网站 | 亚洲精品在线视频观看 | 国产99久久精品一区二区永久免费 | 男女进进出出动态图啪啪 | 亚洲97| 狠狠色婷婷丁香六月 | 冯绍峰个人资料 | 国产欧美视频一区二区三区 | 国产日韩欧美不卡 | 成年黄网站在线观看免费 | 在线播放三级 | 老头巨大校花体内驰骋小说文 | 国产二区在线播放 | 2021中文字幕亚洲精品 | 91精品久久一区二区三区 | 欧美精品3atv一区二区三区 | 一区二区福利视频 | 五月激情久久 | 欧美色性 | 亚洲激情成人 | 狠狠草视频 | 日韩中文字幕免费版 | 国产在线观看免费 | 青娱乐精品视频在线观看 | 中国一级特黄毛片大片 | 国产精品高清在线 |