Expanded Phase II Trial of a Carrageenan-Containing Gel for Prevention of HPV Infection
试验速览
- 阶段
- 2 期
- 状态
- 撤回
- 试验地点
- 1
- 主要终点
- Rate of incident cervical HPV infection
研究概览
简要总结
This randomized phase II trial studies how well carrageenan-containing gel (vaginal gel) works in reducing the rate of human papilloma virus (HPV) infection in healthy participants. Carrageenans, which are naturally derived from seaweed, are enhancements to natural lubrication and may be effective in blocking HPV infection.
详细描述
PRIMARY OBJECTIVES:
I. To measure the overall efficacy of the intervention in reducing the rate of incident cervical HPV infection.
SECONDARY OBJECTIVES:
I. Perform in vitro exploratory testing of how long after vaginal application the drug retains biological activity by collecting cervicovaginal lavage (CVL) at different times and spiking the samples with HPV pseudovirions (PsVs) and measuring PsV entry into target cells.
II. These studies will be expanded to test multiple HPV types and to examine whether the anti-HPV activity of the intervention is preserved in the setting of semen.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 19 Years 至 35 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Sexually active women of all ethnicities and races with an intact cervix are eligible for this trial
- •Engaging in three or more intercourse events (defined as having penile-vaginal intercourse) per month; subjects must consent not to douche or use any vaginal products, including tampons, for 24 hours before enrollment and study visits
- •Normal Pap or Atypical Squamous Cells of Undetermined Significance (ASCUS) Pap test with HPV deoxyribonucleic acid (DNA) negative by reflex testing via Hybrid Capture 2 (Digene Corp., Gaithersburg, MD), a standard clinical assay within clinically acceptable screening guidelines (American Cancer Society [ACS]/American Society for Colposcopy and Cervical Pathology [ASCCP] 2012 Screening Guidelines)
- •Using an adequate method of contraception for at least 3 months with no changes and will remain on the contraception for the duration of the trial; an adequate method of contraception is defined as either a hormonal based method (except vaginal rings); an intrauterine device (IUD) (inserted at least 30 days prior to enrollment); female sterilization; or sexual activity with a partner who had a vasectomy
- •Speaks either English or Spanish, living in or near Newark with no plans to move in the next year, able to sign consent and complete questionnaires with aid of trained personnel
排除标准
- •Prior use of an HPV vaccine
- •Women in the vaccine-eligible age range cannot have received vaccine prior to enrollment, but will be offered HPV vaccination at the end of the study; in brief, we are interested in the efficacy of intervention in preventing HPV in the absence of HPV vaccination, since most women worldwide who might utilize intervention will not have been vaccinated; this includes United States (US) women in the vaccine "catch-up" 19-26 year old age group (beyond the age groups eligible for Vaccines for Children- funded vaccination) who have so far had very low (< 10%) vaccine uptake; it also includes the entire group of US women > 26 years of age; moreover, it includes women of all ages in developing countries, who most need an HPV prevention strategy, but may never be vaccinated; it should be noted that delaying vaccination in women 19-26 years of age by one year is safe and reasonable, since there is insufficient data to establish a recommendation for or against universal vaccination in this age group as concluded by an American Cancer Society expert panel, which includes the Principal Investigator (PI) of this protocol, Dr. Mark Einstein; it is anticipated that if the intervention gel is efficacious, HPV vaccinated women would need to be studied in a similar future trial with power analysis taking into account vaccine effectiveness as well
- •Any previous surgical excision of cervical intraepithelial neoplasia (CIN) or hysterectomy
- •A serious, concomitant disorder, including active systemic infection requiring treatment
- •Prior history of or current malignancy other than adequately treated skin cancer (squamous cell cancer or basal cell carcinoma)
- •Documented or suspected immunosuppressive disorder or autoimmune disease
- •Any significant cardiac, hepatic or renal disease
- •Pregnant and/or breast-feeding
- •Recent (within 4 weeks of screening) or concomitant long term treatment with systemic steroids, immunosuppressive/immunomodulating drugs (e.g. cyclosporine, corticosteroids)
- •Intranasal, inhaled and/or topical steroids are permissible
- •Documented human immunodeficiency virus (HIV) infection, genital warts, chancroid, or pelvic inflammatory disease that will require long term treatment
- •Active genital ulcers
- •Use of an investigational drug in the 3 months prior to screening and must agree to not participate in any drug or device study while enrolled in this study
- •Any known allergy or hypersensitivity to vaginal lubricants or any component of study product
研究组 & 干预措施
Arm I (carrageenan-containing gel)
Participants apply carrageenan-containing gel vaginally within 12 hours prior to each vaginal sex act and as soon as possible within 12 hours after each vaginal sex act and use condoms for 12 months.
干预措施: carrageenan-containing gel (Drug)
Arm I (carrageenan-containing gel)
Participants apply carrageenan-containing gel vaginally within 12 hours prior to each vaginal sex act and as soon as possible within 12 hours after each vaginal sex act and use condoms for 12 months.
干预措施: Laboratory Biomarker Analysis (Other)
Arm I (carrageenan-containing gel)
Participants apply carrageenan-containing gel vaginally within 12 hours prior to each vaginal sex act and as soon as possible within 12 hours after each vaginal sex act and use condoms for 12 months.
干预措施: Questionnaire Administration (Other)
Arm II (placebo gel)
Participants apply placebo gel vaginally within 12 hours prior to each vaginal sex act and as soon as possible within 12 hours after each vaginal sex act and use condoms for 12 months.
干预措施: Placebo (Other)
Arm II (placebo gel)
Participants apply placebo gel vaginally within 12 hours prior to each vaginal sex act and as soon as possible within 12 hours after each vaginal sex act and use condoms for 12 months.
干预措施: Laboratory Biomarker Analysis (Other)
Arm II (placebo gel)
Participants apply placebo gel vaginally within 12 hours prior to each vaginal sex act and as soon as possible within 12 hours after each vaginal sex act and use condoms for 12 months.
干预措施: Questionnaire Administration (Other)
结局指标
主要结局
Rate of incident cervical HPV infection
时间窗: Up to 1 year
The primary analysis will be based upon the intent to treat approach. The cumulative incidence of HPV infection for each treatment group will be estimated as described above and the percent reduction in incidence due to intervention will be computed along with the corresponding one-sided 80% lower confidence bound.
次要结局
- Behavioral characteristics assessed by questionnaires(Up to 1 year)
- Cumulative incidence rates of HPV in the target population (using data from the placebo group)(At 1 year)
- Subject adherence as measured by monthly applicator collection and counting(Up to 1 year)
- Biological activity of carrageenan-containing gel or placebo as measured by CVL at different times and spiking the samples with HPV PsVs and measuring PsV entry into target cells(Baseline to up to 12 months)
研究者
Mark H. Einstein, MD, MS, FACS, FACOS
Professor and Chair Department of Obstetrics, Gynecology and Women's Health, Assistant Dean, Clinical Research Unit
Rutgers, The State University of New Jersey