Randomized, Double Blind Trial of the Quadrivalent HPV Vaccine to Improve Responses to LEEP Treatment of Cervical HSIL

University of Witwatersrand

Status and phase: Completed; Phase 2

Conditions: Cervical High Grade Squamous Intraepithelial Lesion

Treatments: Biological: Human Papillomavirus vaccine

Study type: Interventional

Funder types: Other; Industry

Identifiers

NCT01928225

QHPV-RTC

Details and patient eligibility

About

Cervical cancer occurs commonly in HIV-infected women in South Africa. These women have poor response to treatment of cervical cancer precursors. This study will test whether giving the quadrivalent vaccine to women prior to surgical treatment of the cervical cancer precursor will improve outcomes. We hypothesize that pre-treatment HPV vaccine will result in a reduced occurrence or cervical cancer precursors in follow-up.

Full description

This is a single-center, randomized, double-blinded, placebo-controlled, phase II trial of the quadrivalent human papillomavirus vaccine (qHPV) in HIV-infected women to prevent occurrence of cervical HSIL after LEEP/LLETZ. Participants will undergo colposcopy with directed biopsies, cervical cytology, and stored HPV testing prior to vaccination. Participants will be randomized to the quadrivalent vaccine or saline placebo to be given at entry, week 4, and week 26. Women will have LEEP treatment at week 4. Participants will be seen in follow-up for cervical cytology, colposcopy with directed biopsies at weeks 26 and 52, and stored HPV specimens. Treatment assignment will be unblinded after study follow-up is completed for the last study participant. Women aged 45 or less randomized to placebo will be offered open label HPV vaccine after the study is concluded..

Enrollment: 180 patients

Sex: Female

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. HIV infection
2. Women aged ≥ 18 years.
3. Cervical HSIL on biopsy (i.e. CIN2 and/or CIN3)
4. For participants of reproductive potential, negative serum or urine pregnancy test
5. All study participants must agree not to participate in a conception process (e.g., active attempt to become pregnant or in vitro fertilization) during study participation (from the time of study entry until week 52).

Exclusion criteria

1. History or current biopsy diagnosis of invasive or microinvasive cervical, vaginal, vulvar, anal or oropharyngeal cancer
2. Prior hysterectomy
3. Cervical cryotherapy or LEEP/LEETZ within one year of entry.
4. Cervical, vulvar, or vaginal lesions suspicious for cancer, unless biopsies show no invasive cancer
5. Prior receipt of one or more doses of an HPV vaccine.
6. Receipt of anticoagulants other than aspirin or nonsteroidal anti-inflammatory drugs (NSAIDS) within 14 days prior to entry.
7. Known allergy/sensitivity or any hypersensitivity to yeast or any of the components of the study product or its formulation (see section 5.2 for a list of components).
8. Hemophilia or other bleeding diatheses.
9. Use of any systemic antineoplastic or immunomodulatory treatment, systemic corticosteroids, other than inhaled corticosteroids or prednisone ≤ 10 mg (or equivalent) , investigational vaccines, interleukins, interferons, growth factors, or intravenous immunoglobulin (IVIG) within 45 days prior to study entry.
10. Breastfeeding
11. Less than 3 months post-partum

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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180 participants in 2 patient groups, including a placebo group

Human Papillomavirus vaccine

Experimental group

Description:

Participants receive the experimental quadrivalent Human Papillomavirus vaccine at entry, week 4 and week 26.

Treatment:

Biological: Human Papillomavirus vaccine

Saline placebo

Placebo Comparator group

Description:

The participants receive saline placebo at entry, week 4 and week 26.

Treatment:

Biological: Human Papillomavirus vaccine