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- Klinische proef NCT05413811
Aanvaardbaarheid en haalbaarheid van combinatiebehandeling voor baarmoederhalskanker bij Zuid-Afrikaanse vrouwen die leven met hiv (ACT 2)
Studie Overzicht
Toestand
Interventie / Behandeling
Gedetailleerde beschrijving
Er zijn momenteel geen aanbevolen medische therapieën om de klaring van infectie met het humaanpapillomavirus (HPV), regressie van cervicale dysplasie of behandeling van cervicale intra-epitheliale neoplasie (CIN) te bevorderen. Met het humaan immunodeficiëntievirus (HIV) geïnfecteerde vrouwen lopen een hoger risico op HPV-infectie, met percentages van wel 45% - 90%. Ondanks dat ze te voorkomen zijn, komen cytologische afwijkingen, baarmoederhalskanker (hooggradige cervicale intra-epitheliale neoplasie [CIN2/3]) en invasieve baarmoederhalskanker ook vaker voor bij HIV-geïnfecteerde vrouwen.
In deze studie wordt getest of topisch 5-fluorouracil (5FU) kan worden gebruikt als een patiëntgecontroleerde adjuvante behandeling voor cervicale prekanker (CIN2/3) die zelf moet worden toegediend na chirurgische excisie om het risico op aanhoudende/terugkerende CIN2/3- en progressie naar baarmoederhalskanker bij HIV-geïnfecteerde vrouwen.
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
-
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Johannesburg
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Westdene, Johannesburg, Zuid-Afrika, 2092
- Clinical HIV Research Unit Temba Lethu Wing Helen Joseph Hospital
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Beschrijving
Inclusiecriteria:
- Bevestigde hiv-1-infectie
- Op antiretrovirale therapie (ART), gedurende ten minste 90 dagen voorafgaand aan inschrijving
- Cervicale biopsie die CIN2/3 aantoont binnen de voorgaande 120 dagen.
Uitsluitingscriteria:
- zwangerschap,
- borstvoeding,
- van plan bent om binnen 180 dagen na inschrijving zwanger te worden
- een actieve seksueel overdraagbare aandoening hebben (vrouwen mogen deelnemen na behandeling)
- een chirurgisch afwezige baarmoederhals hebben
- een voorgeschiedenis hebben van anogenitale (cervicale, vaginale, vulvaire of anale) kanker of een biopsie die verdacht is voor baarmoederhalskanker
- een medische comorbiditeit hebben die deelname aan de studie zou belemmeren.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Preventie
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Verviervoudigen
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: 5 Fluorouracil (5FU) Cream
Participants self-administered 2 grams intravaginal 5FU cream at study weeks 4, 6, 8, 10, 12, 14, 16, and 18 (8 doses over 16 weeks total).
|
Intravaginale topische chemotherapie, 5-fluorouracil crème
Andere namen:
|
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Placebo-vergelijker: Placebo Cream
Participants self-administered intravaginal placebo cream (an inert emollient that mimics the 5FU cream) at study weeks 4, 6, 8, 10, 12, 14, 16, and 18 (8 doses over 16 weeks total).
|
Intravaginale actuele placebo-crème
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Number of Participants Retained in the Study Through Week 24
Tijdsspanne: Baseline (Week 0) through Week 24
|
Retention was defined as the number of participants who remained in follow-up and completed the Week 24 study visit.
The number and percentage of participants retained at Week 24 were reported for each study arm.
|
Baseline (Week 0) through Week 24
|
|
Number of Participants With ≥80% Acceptability Summary Score at Week 10
Tijdsspanne: Week 10
|
Acceptability was defined as a summary score ≥80% on a 7-item questionnaire administered at Week 10.
Each item was rated on a 5-point Likert scale and coded from 0 (lowest acceptability) to 4 (highest acceptability), yielding a total possible score of 0 to 28.
A summary acceptability score was calculated as a percentage (0% to 100%) of the total possible score.
The number and percentage of participants meeting this definition were reported for each study arm.
|
Week 10
|
|
Number of Participants With ≥80% Acceptability Summary Score by Week 24
Tijdsspanne: Week 24
|
Acceptability was defined as a summary score ≥80% on the same 7-item questionnaire administered at Week 24.
Each item was rated on a 5-point Likert scale and coded from 0 (lowest acceptability) to 4 (highest acceptability), yielding a total possible score of 0 to 28.
A summary acceptability score was calculated as a percentage (0% to 100%) of the total possible score.
The number and percentage of participants meeting this definition were reported for each study arm.
|
Week 24
|
|
Number of Participants Experiencing a Treatment-Related Grade ≥2 Adverse Event or Grade 1 Genital Lesion
Tijdsspanne: Week 4 (randomization) through Week 24
|
A safety event was defined as any Grade 2 or higher adverse event (AE), or any Grade 1 AE involving a genital lesion (blister, ulceration, or pustule), that was assessed as possibly, probably, or definitely related to the study drug.
Adverse events were assessed from Week 4 (randomization) through Week 24.
The number and percentage of participants experiencing at least one such event were reported for each study arm.
|
Week 4 (randomization) through Week 24
|
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Number of Participants Unable or Unwilling to Apply ≥50% of Study Cream Doses Due to Dose-Limiting Toxicity
Tijdsspanne: Week 4 (randomization) through Week 18
|
A tolerability event was defined as inability or unwillingness to apply ≥4 of 8 planned doses of the study treatment due to a dose-limiting toxicity (DLT).
A DLT was defined as (1) any Grade 2 or higher AE, or (2) any Grade 1 AE involving a genital lesion (blister, ulceration, or pustule), that was assessed as possibly, probably, or definitely related to study drug and resulted in an investigator decision to reduce the number of doses or discontinue study treatment.
Tolerability was assessed from randomization through the dosing period (Week 18), with follow-up censored at the last tolerability assessment for participants who exited early without experiencing an event.
The number and percentage of participants experiencing a tolerability event were reported for each study arm.
|
Week 4 (randomization) through Week 18
|
|
Number of Participants Adherent to ≥75% of Study Cream Doses Based on Ultraviolet Inspection
Tijdsspanne: Week 4 (randomization) through Week 24
|
Adherence was defined as administration of at ≥6 of 8 planned doses of study treatment, as determined by ultraviolet inspection of returned applicators.
Applicator collection occurred through Week 24, including for participants who completed dosing earlier, to allow complete ascertainment of dose use.
Each applicator was independently assessed by ≥2 reviewers; in cases of disagreement, a third reviewer adjudicated the result.
Participants were classified as adherent if ≥6 applicators showed evidence of use.
Participants who did not meet this threshold, including those with missing or incomplete applicator data, were classified as non-adherent.
The number and percentage of participants meeting this definition were reported for each study arm.
|
Week 4 (randomization) through Week 24
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Percent of Participants With CIN2/3 at Baseline Who Regressed to CIN1 or Normal Histology at Week 24
Tijdsspanne: Baseline (Week 0) through Week 24
|
The analysis population included all randomized participants, all of whom had CIN2 or CIN3 at baseline (Week 0) confirmed by loop electrosurgical excision procedure (LEEP) histology.
The analysis population was restricted to participants who completed the Week 24 visit and had cervical biopsy results available.
This included 89 participants in the placebo arm and 81 participants in the 5FU arm.
Regression was defined as improvement from CIN2 or CIN3 at baseline to CIN1 or normal histology at Week 24, as assessed by cervical biopsy.
Participants missing Week 24 data were not included and not considered to have experienced CIN2/3 regression.
The number and percentage of participants meeting this definition were reported for each study arm.
The Wilson score method was used to estimate 95% confidence intervals around percentages.
|
Baseline (Week 0) through Week 24
|
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Percent of Participants With Baseline High-Risk HPV Who Achieved Genotype-Specific Clearance at Week 24
Tijdsspanne: Baseline (Week 0) through Week 24
|
The analysis population was restricted to participants with at least one high-risk HPV (hrHPV) genotype detected at baseline and with hrHPV results available at Week 24.
A total of 69 participants in the 5FU arm and 80 participants in the placebo arm met these criteria.
High-risk HPV clearance was defined as absence at Week 24 of all hrHPV genotypes detected at baseline.
Participants without baseline hrHPV infection or without Week 24 hrHPV results were excluded from this analysis.
The number and percentage of participants meeting this definition were reported for each study arm.
The Wilson score method was used to estimate 95% confidence intervals around percentages.
|
Baseline (Week 0) through Week 24
|
Medewerkers en onderzoekers
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Carla Chibwesha, MD, MSc, University of North Carolina, Chapel Hill
Publicaties en nuttige links
Algemene publicaties
- Chibwesha CJ, Mollan KR, Teodoro NS, Keys JR, Liu C, Mulongo M, Gumede S, Pasipamire T, Faesen M, Rahangdale L. ACT 2 Clinical Trial Design: Acceptability and Feasibility of Combination Treatment for Cervical Precancer Among South African Women Living with HIV. medRxiv [Preprint]. 2025 Aug 14:2025.08.12.25333540. doi: 10.1101/2025.08.12.25333540.
- Teodoro NS, Mollan KR, Keys JR, Liu C, Mulongo M, Gumede S, Pasipamire T, Faesen M, Mischell MA, Rahangdale L, Chibwesha CJ. Acceptability and Feasibility of Combination Treatment for Cervical Precancer Among Women Living with HIV in South Africa: Primary Outcomes from the ACT 2 Randomized Trial. medRxiv [Preprint]. 2026 Mar 16:2026.03.14.26348308. doi: 10.64898/2026.03.14.26348308.
- Chibwesha CJ, Teodoro NS, Mollan KR, Keys JR, Liu C, Mulongo M, Gumede S, Pasipamire T, Faesen M, Rahangdale L. Efficacy of Combination Treatment for Cervical Precancer Among Women Living with HIV in South Africa: Secondary Outcomes from the ACT 2 Randomized Controlled Trial. medRxiv [Preprint]. 2026 Mar 22:2026.03.19.26348810. doi: 10.64898/2026.03.19.26348810.
- Chibwesha CJ, Mollan KR, Teodoro NS, Keys JR, Liu C, Mulongo M, Gumede S, Pasipamire T, Faesen M, Rahangdale L. Randomized clinical trial protocol: Acceptability and feasibility of combination treatment for cervical precancer among South African women living with HIV (ACT 2). Contemp Clin Trials. 2026 May;164:108272. doi: 10.1016/j.cct.2026.108272. Epub 2026 Mar 2.
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Door bloed overgedragen infecties
- Urogenitale ziekten
- Genitale ziekten
- Urogenitale neoplasmata
- Neoplasmata per site
- Neoplasmata
- Vrouwelijke urogenitale ziekten
- Vrouwelijke urogenitale ziekten en zwangerschapscomplicaties
- Ziekten van het immuunsysteem
- Infecties
- RNA-virusinfecties
- Virusziekten
- Baarmoeder Ziekten
- Genitale ziekten, vrouw
- Overdraagbare ziekten
- Seksueel overdraagbare aandoeningen, viraal
- Seksueel overdraagbare aandoeningen
- Lentivirus-infecties
- Retroviridae-infecties
- Immunologische deficiëntie syndromen
- Genitale neoplasmata, vrouwelijk
- Langzame virusziekten
- Baarmoederhalsaandoeningen
- Baarmoeder Neoplasmata
- HIV-infecties
- Verworven Immunodeficiëntie Syndroom
- Baarmoeder Cervicale Neoplasmata
- Heterocyclische verbindingen, 1-ring
- Heterocyclische verbindingen
- Pyrimidines
- Uracil
- Pyrimidinonen
- Fluorouracil
Andere studie-ID-nummers
- IGHID12046
- 1R01CA250850-01 (Subsidie/contract van de Amerikaanse NIH)
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Beschrijving IPD-plan
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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