- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT05413811
Acceptabilité et faisabilité du traitement combiné du précancer du col de l'utérus chez les femmes sud-africaines vivant avec le VIH (ACT 2)
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Il n'existe actuellement aucun traitement médical recommandé pour favoriser l'élimination de l'infection par le virus du papillome humain (VPH), la régression de la dysplasie cervicale ou le traitement de la néoplasie intraépithéliale cervicale (CIN). Les femmes infectées par le virus de l'immunodéficience humaine (VIH) courent un risque plus élevé d'infection par le VPH, avec des taux aussi élevés que 45 % à 90 %. Bien qu'elles soient évitables, les anomalies cytologiques, le précancer du col de l'utérus (néoplasie cervicale intraépithéliale de haut grade [CIN2/3]) et le cancer invasif du col de l'utérus surviennent également plus fréquemment chez les femmes infectées par le VIH.
Cette étude teste si le 5-fluorouracile (5FU) topique peut être utilisé comme traitement adjuvant contrôlé par le patient pour le précancer du col de l'utérus (CIN2/3) à auto-administrer après l'excision chirurgicale pour réduire le risque de CIN2/3 persistant/récurrent et évolution vers le cancer du col de l'utérus chez les femmes infectées par le VIH.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
-
-
Johannesburg
-
Westdene, Johannesburg, Afrique du Sud, 2092
- Clinical HIV Research Unit Temba Lethu Wing Helen Joseph Hospital
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
La description
Critère d'intégration:
- Infection par le VIH-1 confirmée
- Sous traitement antirétroviral (ART), pendant au moins 90 jours avant l'inscription
- Biopsie cervicale démontrant CIN2/3 dans les 120 jours précédents.
Critère d'exclusion:
- grossesse,
- allaitement maternel,
- avez l'intention de tomber enceinte dans les 180 jours suivant l'inscription
- avoir une infection sexuellement transmissible active (les femmes peuvent participer une fois traitées)
- avoir un col de l'utérus absent chirurgicalement
- avez des antécédents de cancer anogénital (cervical, vaginal, vulvaire ou anal) ou une biopsie suspecte de cancer du col de l'utérus
- avoir une comorbidité médicale qui interférerait avec la participation à l'étude.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: La prévention
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Quadruple
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: 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).
|
Chimiothérapie topique intravaginale, crème de 5-fluorouracile
Autres noms:
|
|
Comparateur placebo: 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).
|
Crème placebo topique intravaginale
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Number of Participants Retained in the Study Through Week 24
Délai: 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
Délai: 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
Délai: 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
Délai: 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
|
|
Number of Participants Unable or Unwilling to Apply ≥50% of Study Cream Doses Due to Dose-Limiting Toxicity
Délai: 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
Délai: 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
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Percent of Participants With CIN2/3 at Baseline Who Regressed to CIN1 or Normal Histology at Week 24
Délai: 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
|
|
Percent of Participants With Baseline High-Risk HPV Who Achieved Genotype-Specific Clearance at Week 24
Délai: 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
|
Collaborateurs et enquêteurs
Collaborateurs
Les enquêteurs
- Chercheur principal: Carla Chibwesha, MD, MSc, University of North Carolina, Chapel Hill
Publications et liens utiles
Publications générales
- 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.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Infections transmissibles par le sang
- Maladies urogénitales
- Maladies génitales
- Tumeurs urogénitales
- Tumeurs par site
- Tumeurs
- Maladies urogénitales féminines
- Maladies urogénitales féminines et complications de la grossesse
- Maladies du système immunitaire
- Infections
- Infections par virus à ARN
- Maladies virales
- Maladies utérines
- Maladies génitales, femme
- Maladies transmissibles
- Maladies sexuellement transmissibles, virales
- Maladies sexuellement transmissibles
- Infections à lentivirus
- Infections à rétroviridae
- Syndromes d'immunodéficience
- Tumeurs génitales, femme
- Maladies à virus lents
- Maladies du col de l'utérus
- Tumeurs utérines
- Infections à VIH
- Syndrome immunodéficitaire acquis
- Tumeurs du col de l'utérus
- Composés hétérocycliques, 1 anneau
- Composés hétérocycliques
- Pyrimidines
- Uracile
- Pyrimidinones
- Fluorouracile
Autres numéros d'identification d'étude
- IGHID12046
- 1R01CA250850-01 (Subvention/contrat des NIH des États-Unis)
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
produit fabriqué et exporté des États-Unis.
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .