华兰生物：子公司冻干b型流感嗜血杆菌结合疫苗临床试验获批

Core Viewpoint - The company has received approval from the National Medical Products Administration for clinical trials of its lyophilized Haemophilus influenzae type b conjugate vaccine, indicating progress in its vaccine development pipeline [1] Group 1: Company Developments - The company's subsidiary, Hualan Biological Vaccine Co., Ltd., has been granted a clinical trial approval notice for the lyophilized Haemophilus influenzae type b conjugate vaccine [1] - The clinical trial application was accepted on May 21, 2025, and meets the requirements for drug registration [1] - The vaccine aims to prevent invasive infections caused by Haemophilus influenzae type b, including meningitis, pneumonia, sepsis, cellulitis, arthritis, and epiglottitis [1]