This is a single-arm, single-center, open-label Investigator-Initiated Trial (IIT) designed to evaluate the safety and efficacy of BBM-C101 Injection in subjects with HPV16/18 infection and histopathologically confirmed ≤ Grade 2 CIN, VIN, VAIN or AIN via colposcopy or anoscopy, with a planned enrollment of 200 subjects. The study consists of three phases: a 4-week screening period, a 52-week treatment/follow-up period, and a 52-week long-term follow-up period. Safety will be assessed based on vital signs, physical examinations, laboratory tests, as well as the number and severity of Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) occurring throughout the study.
Confirmed HPV16 and/or HPV18 infection of the cervix, vulva, vagina or anus lasting for more than 1 year at screening; patients who decline surgical treatment or have failed prior pharmaceutical therapy (e.g., 5% imiquimod cream, 1% cidofovir gel);
Histopathological diagnosis of ≤ Grade 2 CIN, VIN, VAIN or AIN via colposcopy or anoscopy at a local hospital (lesion specimens obtained within 3 weeks prior to the first study treatment); willing to provide biological samples throughout the study;
Cytology results obtained during screening showing any of the following: adenocarcinoma in situ (AIS), atypical glandular cells favor neoplasia (AGC-FN), invasive carcinoma, etc.
Received disease-related treatments within 4 weeks prior to the first vaccination, including pharmaceutical therapy (e.g., immunomodulators, fluorouracil ointment, recombinant human interleukin-2 injection), physical therapy (cryotherapy, laser therapy, photodynamic therapy), or surgical treatment.
Prior administration of any therapeutic HPV vaccine (licensed prophylactic HPV vaccines are permitted).
Received any vaccine within 4 weeks or 2 weeks prior to the first vaccination.