Clinical Study to Evaluate SIIPL QHPV Vaccine (CERVAVAC®) in Women Living with HIV Aged 15-25 Years

Phase 3

Not yet recruiting

• Conditions: Human Papillomavirus Infection
• Interventions: Biological: Cervavac as two dose regimen; Biological: Cervavac as three dose regimen; Biological: Gardasil as three dose regimen

• Registration Number: NCT06281119
• Lead Sponsor: Serum Institute of India Pvt. Ltd.

Brief Summary

Human papillomavirus (HPV) infection is the most common viral infection of the reproductive tract. Up to 80%of the sexually active females and men will be infected with HPV at some point in their lives and some may be repeatedly infected. The main burden of HPV-related disease is due to cervical cancer. Since cervical screening only detects precancerous and cancerous changes after they have occurred, HPV vaccination is primary prevention. People with HIV infection, even when effectively treated with antiretroviral therapy (ARV),are at higher risk of acquiring infection with multiple HPV types and are also known to be predisposed to a higher risk of HPV infection and subsequent CIN lesions. Vaccination of this high-risk group with HPV vaccine is highly beneficial. SIIPL's qHPV vaccine CERVAVAC®, India's first indigenous qHPV vaccine has received marketing authorization in India. The current study is a Phase 3b study to evaluate the immunogenicity and safety of two- and three-dose schedules of SIIPL qHPV vaccine in women living with HIV (WLWH) aged 15-25years.

Detailed Description

A Phase-3b, partially double-blind, randomized, multi-country study to assess the immunogenicity, safety, and reactogenicity of SIIPL qHPV vaccine in WLWH aged 15-25 years. A total of 450 subjects will be enrolled in the study such that 150 subjects in each group receive either 3-doses of SIIPL qHPV vaccine, 2-doses of SIIPL qHPV vaccine or 3-doses of Gardasil®.

Subjects will be randomized in a 1:1:1 ratio to a 2-dose or 3-dose schedule of SIIPL qHPV vaccine or 3-dose schedule of Gardasil®. This study is designed as a partially double-blind, randomized study with a primary objective to compare the immunogenicity of the 3-dose schedule of SIIPL qHPV vaccine versus a 3-dose schedule of Gardasil®. The secondary objectives include comparison in the immune response between WLWH receiving 2-dose schedule of SIIPL qHPV vaccine and a 3-dose schedule of SIIPL qHPV. The immunogenicity data will be collected up to Month 12 and data at 7-month will be considered for analysis of primary immunogenicity endpoints.

Study Timeline

• Study First Submitted: 2024-02-20
• Study First Submitted QC: 2024-02-20
• Study First Posted: 2024-02-28
• Status Verified: 2025-01
• Last Update Submitted: 2025-01-04
• Last Update Posted: 2025-01-07
• Study Start: 2025-03
• Primary Completion: 2026-06
• Study Completion: 2026-12

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: Female
• Target Recruitment: 450

Inclusion Criteria

1. Women Living with HIV aged 15-25 years at the time of screening

2. Subjects with age 18 years and above, should be willing and able to provide written informed consent while for subjects <18*years of age, parents willing to provide written informed consent and subject is willing to sign written assent form for participation prior to initiating any study related procedure.

3. Subject or parent willing to comply with all study requirements.

4. Subjects who are determined by medical history, physical examination and clinical judgment of the Investigator to be eligible for inclusion in the study.

5. Women of childbearing potential (WOCBP) (sexually active/ ≥18 years of age) must meet all the following criteria:

   Have practiced effective contraception (such as any one of the following: oral, transdermal, injectable or implanted contraceptive; condoms; occlusive cap [diaphragm or cervical vault caps]; spermicidal foam/gel/cream, etc.) or have abstained from all activities that could result in pregnancy from the time of screening up to first vaccine administration (Day 0).

   Have a negative Urine Pregnancy Test (UPT) at screening and on the day of vaccination (Day 0).

   Have agreed to continue effective contraception during the entire treatment period and for two months after completion of the vaccination series.

6. Subject must be asymptomatic (or only have persistent generalized lymphadenopathy) regardless of prior clinical stage.

7. If the subjects were currently taking antiretroviral (ARV) therapy, subjects were to be on highly active antiretroviral therapy (HAART), have undetectable viral load reported at least six months prior, and have a CD4+ cell count >350 cells/mm3 at study entry.

8. If the subjects are not on HAART, subjects should have a CD4+ cell count > 350 cells/mm3 at study entry.

Exclusion Criteria

1. Known history of prior vaccination with HPV vaccine.
2. Concurrently enrolled in clinical studies of investigational agents or studies involving collection of cervical/genital specimens.
3. Current diagnosis or prior history of genital warts or treatment of genital warts.
4. Current diagnosis or history of treatment for cervical pre malignancies or malignancies.
5. Pregnant females.
6. History of any allergic diseases or severe allergic reaction to any agent.
7. Presence of an acute illness and/or fever at the time of vaccination or during the 72 hours prior to the vaccination.
8. Presence of active tuberculosis or currently on TB therapy.
9. Bleeding diathesis or uncontrolled condition associated with prolonged bleeding that would, in the opinion of the Investigator, contraindicate intramuscular injection.
10. History of major congenital defects or illness that requires medical therapy, as determined by medical history or clinical assessment.
11. History of chronic administration of high doses of corticosteroids, cytotoxic agents or radiotherapy or immunoglobulins, immunosuppressants or other immune-modifying drugs in last 3 months or planned at any time during the study.
12. History of receiving a blood transfusion or other blood products in three months prior to screening.
13. History of any major pulmonary, cardiovascular, renal, neurological, metabolic, gastro-intestinal, hepato-biliary, hematological functional abnormality, mental or physical disability, blood dyscrasia or any condition which in the opinion of the investigator might interfere with the evaluation of the study objectives.
14. History of any cancer, organ transplant or any other immune system disease (other than HIV/AIDs).
15. Subject or subject's parent, is or has an immediate family member who is study specific site staff directly involved with this trial.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Cervavac administered as two doses	Cervavac as two dose regimen	Recombinant Quadrivalent Human Papillomavirus (Types 6,11 16, 18) Vaccine manufactured by Serum Institute of India Pvt Ltd administered as two doses at day 0 and 180.
Cervavac administered as three doses	Cervavac as three dose regimen	Recombinant Quadrivalent Human Papillomavirus (Types 6,11 16, 18) Vaccine manufactured by Serum Institute of India Pvt Ltd administered as three doses at day 0, 60 and 180.
Gardasil administered as three doses	Gardasil as three dose regimen	Recombinant Quadrivalent Human Papillomavirus (Types 6,11 16, 18) Vaccine manufactured by MSD administered as three doses at day 0, 60 and 180.

Primary Outcome Measures

Name	Time	Method
Geometric mean titers of anti HPV 16 and 18 IgG antibodies	at 1 month after the last dose	GMTs of anti HPV 16 and 18 IgG antibodies in WLWH receiving 3 doses of SIIPL qHPV and 3 doses of Gardasil®

Secondary Outcome Measures

Name	Time	Method
Geometric mean titers of anti HPV 6, 11, 16 and 18 IgG antibodies and Pecentage seroconversion	at 1 month after the last dose	Geometric mean titers of anti HPV 6, 11, 16 and 18 IgG antibodies and Pecentage seroconversion in WLWH receiving 2 doses or 3 doses of SIIPL qHPV or 3 doses of Gardasil
Immune response (Geometric mean titers) of anti HPV 6 and 11 IgG antibodies	at 1 month after the last dose	Geometric mean titers of anti HPV 6 and 11 IgG antibodies in WLWH receiving 3 doses of SIIPL qHPV or Gardasil
Adverse Events	solicited AEs up to 7 days following each vaccination, unsolicited AEs from Day 0 through Month 7 and Month12 and SAEs from Day 0 through Month 7 and Month 12.	Incidence, severity, and relationship of local and systemic solicited AEs up to 7 days following each vaccination. Incidence, severity, and relationship of unsolicited AEs from Day 0 through Month 7 and Month 12. Incidence, severity, and relationship of SAEs from Day 0 through Month 7 and Month 12.

Trial Locations

Locations (4)

Partners in Health and Research Development (Phrd); 🇰🇪 Thika, Kenya

Centre For Clinical Research, Kemri; 🇰🇪 Nairobi, Kenya

Manhiça Health Research Center - Manhiça Foundation (CISM-FM); 🇲🇿 Manhiça, Mozambique

Clinical HIV Research Unit (CHRU), Helen Joseph Hospital; 🇿🇦 Johannesburg, South Africa