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A Safety Study of Two Dapivirine (TMC120) Vaginal Gels in the United States

A DOUBLE-BLIND, RANDOMIZED, PLACEBO-CONTROLLED PHASE I/II TRIAL TO EVALUATE THE SAFETY OF DAPIVIRINE GEL 4759, 0.05% 2.5g AND DAPIVIRINE GEL 4789, 0.05% 2.5g FORMULATIONS AS COMPARED TO THE VAGINAL HEC-BASED UNIVERSAL PLACEBO GEL, 2.5g IN HEALTHY HIV-NEGATIVE WOMEN

A double-blind, randomized, placebo-controlled Phase I/II trial to evaluate the safety of dapivirine Gel 4759, 0.05% 2.5 g and dapivirine Gel 4789, 0.05% 2.5 g formulations as compared to the vaginal HEC-based Universal placebo gel, 2.5 g in healthy HIV-negative women

調査の概要

詳細な説明

This was a double-blind, randomized, placebo-controlled trial, to be conducted over 10 months at five research centers in the USA among 180 healthy, sexually active women, to assess the safety and acceptability of dapivirine Gel 4759, 0.05% 2.5 g, and dapivirine Gel 4789, 0.05% 2.5 g, both vaginal microbicides containing dapivirine, compared to the vaginal HEC-based Universal placebo gel, 2.5 g, containing no active ingredient, used once daily for a period of 12 weeks.

研究の種類

介入

入学 (実際)

128

段階

  • フェーズ2
  • フェーズ 1

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • Alabama
      • Birmingham、Alabama、アメリカ、35294
        • University of Alabama at Birmingham, Alabama Microbicide Clinical Research Site (AMCRS)
    • California
      • Torrance、California、アメリカ、90502
        • Harbor-UCLA Medical Center
    • Illinois
      • Chicago、Illinois、アメリカ、60612
        • University of Illinois at Chicago
    • Maryland
      • Baltimore、Maryland、アメリカ、21201
        • SNBL Clinical Pharmacology Center
    • New York
      • New York、New York、アメリカ、10461
        • Albert Einstein College of Medicine

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年~40年 (大人)

健康ボランティアの受け入れ

はい

受講資格のある性別

女性

説明

Inclusion Criteria:

  1. Women 18 to 40 years of age inclusive who can give written informed consent
  2. Available for all visits and consent to follow all procedures scheduled for the trial
  3. Healthy and self-reported sexually active
  4. HIV-negative as determined by an HIV test at time of enrollment
  5. Willing to be on a stable form of contraception
  6. In the absence of the use of exogenous hormone(s), have a self-reported regular menstrual cycle
  7. Upon pelvic/speculum examination and colposcopy at the enrollment visit, the cervix and vagina appear normal as determined by qualified research center staff
  8. Asymptomatic for genital infections at the time of enrollment
  9. Willing to refrain from use of vaginal products or objects for 14 days prior to enrollment and for the duration of the trial.
  10. Documentation of no abnormality on Pap smear within 90 days prior to randomization;
  11. Willing to answer acceptability and adherence questionnaires throughout the trial
  12. Willing to refrain from participation in any other research trial for the duration of this trial
  13. Willing to provide adequate locator information for trial retention purposes and be reachable per local standard procedures
  14. Willing to abstain from all the following criteria beginning 48 hours prior to each trial visit:

    • Vaginal intercourse
    • Oral contact with her genitalia
    • Internal vaginal washing
    • Penetration of the vagina by fingers, sex toys, or any other objects, including medications
  15. Willing to abstain from all of the following for 3 days after biopsy procedures:

    • Vaginal intercourse
    • Oral contact with her genitalia
    • Internal vaginal washing
    • Penetration of the vagina by fingers, sex toys, or any other objects, including medications

Exclusion Criteria:

  1. Currently pregnant or having had their last pregnancy outcome within 3 months prior to screening
  2. Currently breast-feeding, or having breastfed within 3 months prior to screening
  3. Receipt of any investigational agent within 60 days prior to screening
  4. Previously participated in any HIV vaccine trial
  5. Untreated urogenital infections within 2 weeks prior to enrollment
  6. Presence of any abnormal physical finding on the vulva, vaginal walls or cervix during pelvic/speculum examination and/or colposcopy
  7. History of significant urogenital or uterine prolapse, undiagnosed vaginal bleeding, or urethral obstruction
  8. Pap smear result at screening that requires cryotherapy, biopsy or treatment (other than for infection)
  9. History of symptomatic or asymptomatic HSV-2
  10. Any Grade 2, 3 or 4 hematology, chemistry or urinalysis laboratory abnormality at baseline
  11. Unexplained, undiagnosed abnormal bleeding per vagina during or following vaginal intercourse; or urogenital surgery within 90 days prior to enrollment
  12. Any history of anaphylaxis or severe allergy resulting in angioedema; or a history of sensitivity/allergy to latex
  13. Any serious acute, chronic or progressive disease
  14. Any condition(s) that, in the opinion of the Investigator, might interfere with adherence to trial requirements or evaluation of the trial objectives

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:防止
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:ダブル

武器と介入

参加者グループ / アーム
介入・治療
アクティブコンパレータ:dapivirine gel 4789
will be applied by participants once daily for 12-weeks treatment period
dapivirine gel 4789, 0.05%, 2.5g applied once daily
他の名前:
  • TMC120
アクティブコンパレータ:dapivirine gel 4759
Will be applied by participants once daily for12-weeks treatment period
dapivirine gel 4759, 0.05%, 2.5g applied once daily
他の名前:
  • TMC120
プラセボコンパレーター:HEC-based placebo gel, 2.5g containing no Dapivirine
Will be applied once daily for 12-weeks treatment period
HEC-based universal placebo gel, 2.5g applied once daily
他の名前:
  • HEC-based placebo gel, 2.5g

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
The Percentage of Women With the Composite Endpoint of Abnormal Safety Findings.
時間枠:12 weeks

A composite endpoint was defined as the percentage of participants with any post-baseline abnormal finding from pelvic/speculum examination, colposcopy finding, STI diagnoses, laboratory test of DAIDS grade 3 or higher and any product-related AE.

DAIDS severity grades are defined as follows:

Grade 1 = mild Grade 2 = moderate Grade 3 = severe Grade 4 = potentially life-threatening Grade 5 = death

12 weeks

二次結果の測定

結果測定
メジャーの説明
時間枠
Changes in the Vaginal Flora
時間枠:16 weeks

Cervicovaginal fluid specimens will be obtained to determine vaginal flora before first gel application and at Visits 3, 5, and 6. Appropriate statistical analyses incorporating repeated measures will be used to assess the changes in the vaginal flora in women using Dapivirine Gel 4759, 0.05% 2.5g, Dapivirine Gel 4789, 0.05% 2.5g or the vaginal HEC-based universal placebo gel, 2.5g.

Nugent scores were used to assess changes in vaginal flora, and were categorized into three levels: (1) negative for BV (score: 0-3); (2) altered vaginal flora (score: 4-6); and (3) BV (score: 7-10).

16 weeks
The Distribution of Dapivirine Levels Observed in Plasma Samples at Each Specified Time Point
時間枠:12 weeks
Dapivirine levels observed in plasma will be summarized using simple descriptive statistics.
12 weeks
The Adherence to Once Daily Application of a Vaginal Microbicide Gel Over a 12-week Period in Healthy, Sexually Active, HIV-negative Women
時間枠:12 weeks
Adherence is defined as the percentage of participants who used the gel each day of the preceding 14 days, based on participant self reports.
12 weeks
Changes in the Vaginal pH
時間枠:12 weeks
Cervicovaginal fluid specimens will be obtained to determine vaginal pH before first gel application and at screening, enrolment and visit 5 (week 12). Appropriate statistical analyses incorporating repeated measures will be used to assess the changes in the vaginal pH in women using Dapivirine Gel 4759, 0.05% 2.5g, Dapivirine Gel 4789, 0.05% 2.5g or the vaginal HEC-based universal placebo gel, 2.5g.
12 weeks
The Distribution of Dapivirine Levels Observed in Vaginal Fluid at Each Specified Time Point.
時間枠:12 weeks. Measured at 2, 4, and 8 weeks post-enrolment and at one of these at week 12; 24, 48, or 72 hours after gel discontinuation. (Participants were randomized to have vaginal fluid samples collected at one of these visits (5a, 5b, or 5c).
The distribution of dapivirine levels observed in each type of sample will be summarized using simple descriptive statistics. In addition, the proportion of women with detectable dapivirine concentrations will be calculated for each type of sample at each collection time point. Exploratory analyses of dapivirine concentration data will also be performed to take into account information reported in a diary regarding menses and tampon use throughout the trial.
12 weeks. Measured at 2, 4, and 8 weeks post-enrolment and at one of these at week 12; 24, 48, or 72 hours after gel discontinuation. (Participants were randomized to have vaginal fluid samples collected at one of these visits (5a, 5b, or 5c).
The Distribution of Dapivirine Levels Observed in Vaginal Tissue at Each Specified Time Point.
時間枠:12 weeks. Measured at 2, 4, and 8 weeks post-enrolment and at one of these at week 12; 24, 48, or 72 hours after gel discontinuation. (Participants were randomized to have vaginal fluid samples collected at one of these visits (5a, 5b, or 5c).
The distribution of dapivirine levels observed in vaginal tissue sample will be summarized using simple descriptive statistics.
12 weeks. Measured at 2, 4, and 8 weeks post-enrolment and at one of these at week 12; 24, 48, or 72 hours after gel discontinuation. (Participants were randomized to have vaginal fluid samples collected at one of these visits (5a, 5b, or 5c).
Acceptability of Once Daily Application of a Vaginal Microbicide Gel Over a 12-week Period in Healthy, Sexually Active, HIV-negative Women
時間枠:12 weeks
Acceptability was assessed as the percentage of participants at week 12 who were willing to use the gel every day if proven to prevent HIV.
12 weeks

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

捜査官

  • スタディチェア:Dr Annalene Nel、International Partnership for Microbicides

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2009年7月6日

一次修了 (実際)

2011年1月8日

研究の完了 (実際)

2011年1月8日

試験登録日

最初に提出

2008年11月26日

QC基準を満たした最初の提出物

2008年11月26日

最初の投稿 (見積もり)

2008年11月27日

学習記録の更新

投稿された最後の更新 (実際)

2022年10月25日

QC基準を満たした最後の更新が送信されました

2022年10月24日

最終確認日

2022年10月1日

詳しくは

本研究に関する用語

キーワード

その他の研究ID番号

  • IPM 020

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。

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