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Universal Use of EFV-TDF-FTC and AZT-3TC-LPV/r Combinations for HIV-1 PMTCT in Pregnant and Breastfeeding Women : a Phase 3 Trial (UMA)

Safety and Efficacy of the Universal Use of EFV-TDF-FTC and AZT-3TC-LPV/r Combinations in Pregnant and Breastfeeding Women to Prevent mother-to Child Transmission of HIV-1 o, Resource-limited Settings: A Multicentre Randomized Phase 3 Clinical Trial

To assess the maternal and infant safety of a single daily fixed-dose combination of TDF/FTC/EFV (Atripla®), compared to the association of LPV/r (Kaletra® or Aluvia®) and 3TC/ZDV (Combivir®) given to African women to prevent overall MTCT in populations practicing breastfeeding.

Aperçu de l'étude

Description détaillée

The prevention of MTCT during pregnancy and through breastfeeding exposure remains challenging to date in most resource-limited settings. Peripartum HIV transmission is already amenable to ARV interventions. These ARV regimens, partially efficacious are insufficiently used despite their apparent simplicity. The postnatal transmission via breastfeeding remains a serious additional threat.

This is a multicentric, non-inferiority, randomized controlled trial aiming at assessing the maternal and infant safety of a single daily fixed-dose combination of TDF/FTC/EFV (Atripla®), compared to the association of LPV/r (Kaletra® or Aluvia®) and 3TC/ZDV (Combivir®) given to African women (in Cote d'Ivoire an in Zambia) to prevent MTCT overall in breastfeeding population.

The fixed-dose combination of Tenofovir/Emtricitabine/Efavirenz (TDF/FTC/EFV or Atripla®) is a highly effective HAART combination and the simplest ARV regimen currently available in resource-limited settings and is therefore likely to become soon the lead first-line HAART regimen for adults in such settings. Its anticipated widespread prescription in women of childbearing age requires the proper documentation of its use in pregnancy and during breastfeeding.

The combination of ZDV/3TC (Combivir®) and Lopinavir/ritonavir (LPV/r) (Kaletra® or Aluvia®) is chosen as a reference regimen as it is one of the most commonly used first-line HAART for adults and the reference regimen for PMTCT in industrialised settings.

The maternal ARV regimen will be initiated as soon as possible from 20 weeks of gestation until at least the cessation of breastfeeding (with the advice to cease at six months). The decision to stop or continue the maternal ARV regimen after breastfeeding cessation will be based on the baseline maternal CD4 count and the maternal clinical stage at baseline and/or at breastfeeding cessation. A woman with a baseline CD4 <500 cells/ml will always be proposed to continue her treatment after breastfeeding cessation. A woman with a baseline CD4 count >500 will be asked to stop her treatment after breastfeeding cessation unless she has reached the WHO clinical stage IV at that time.

Infants will receive daily Zidovudine syrup from birth during the first week of life, or an updated ARV post-exposure prophylaxis recommended by WHO when women receive HAART.

Type d'étude

Interventionnel

Phase

  • Phase 3

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

      • Abidjan, Côte d'Ivoire
        • Programme PAC-CI, site ANRS
      • Lusaka, Zambie
        • Center for Infectious Desease Reserach in Zambia

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Femelle

La description

Inclusion Criteria:

  • being pregnant, presenting in at least the 20th week of pregnancy and no later than 2 weeks before the expected term;
  • at least 18 years of age;
  • diagnosed as infected with HIV-1 only;
  • not currently taking any ARV drugs;
  • having not been exposed to NVP in the 6 months preceding enrolment;
  • willing to breastfeed their forthcoming child;
  • residing and planning to continue to reside within the predefined catchment areas until 12 months after delivery;
  • being able to give informed consent for enrolment in the study;
  • lacking any medical contraindication to any of the proposed ARV medications;
  • and accepting the principle of being randomized to receive one of the ARV regimens evaluated within the study, to prevent MTCT and for their own health when required.

Exclusion Criteria:

  • presenting within 2 weeks before the expected term;
  • currently taking ARV drugs;
  • having been exposed to NVP in the 6 months preceding enrolment;
  • not willing to breastfeed their forthcoming child;
  • having severe renal insufficiency (creatin clearance < 60ml/min);
  • diagnosed as infected with HIV-2 only or dually infected HIV-1 and HIV-2;
  • hemoglobin < 7 g/dL in the month preceding inclusion
  • HBs Ag positive

Women meeting one of the three last exclusion criteria (HIV-2 infection or co-infection, hemoglobin < 7 g/dL, HBs Ag positive) will not be randomized but will all received Atripla and be followed-up in an ancillary open cohort according the same procedures and agenda.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: La prévention
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur actif: Atripla (R)
Atripla (R) : Efavirenz 600 mg - Tenofovir 300 mg - Emtricitabine 200 mg; Dosage : 1 pill/day
Comparateur actif: Combivir (R) + Kaletra (R) or Aluvia (R)

Combivir (R) : Zidovudine 300 mg - Lamivudine 150 mg Dosage : 1 pill twice a day

Kaletra (R) or Aluvia (R) : Lopinavir 200 mg / Ritonavir 50 mg Dosage : 2 or 3 pills twice a day

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Délai
cumulative occurence of : -adverse pregnancy outcomes (spontaneous abortion, stillbirth, congenital abnormality requiring surgical correction in children < 1 yr of age); -paediatric HIV infection; -infant mortality
Délai: at 6 and 12 months following delivery/birth
at 6 and 12 months following delivery/birth

Mesures de résultats secondaires

Mesure des résultats
Délai
occurence of grade 4 events in treated women, and of grade 3 or 4 events in ARV-exposed infants
Délai: at 6 and 12 months following delivery/birth
at 6 and 12 months following delivery/birth
frequency of virological failure (>300 copies/mL) and viral resistance profile
Délai: at 6 month and 12 months post-delivery
at 6 month and 12 months post-delivery
frequency of premature delivery (<37 weeks) and frequency of low birth weight (<2500 g)
Délai: at delivery/birth
at delivery/birth
cumulative incidence of paediatric HIV infection
Délai: at 12 months after delivery
at 12 months after delivery
tolerability of the ARV combination in treated women
Délai: at 6 and 12 months following delivery/birth
at 6 and 12 months following delivery/birth

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Les enquêteurs

  • Chaise d'étude: Didier K Ekouevi, MD, PhD, Programme PACCI Abidjan, Cote d'Ivoire
  • Chaise d'étude: François Dabis, MD, PhD, Bordeaux 2 University, France

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude

1 janvier 2010

Achèvement primaire (Anticipé)

1 janvier 2013

Achèvement de l'étude (Anticipé)

1 juin 2013

Dates d'inscription aux études

Première soumission

8 juillet 2009

Première soumission répondant aux critères de contrôle qualité

8 juillet 2009

Première publication (Estimation)

9 juillet 2009

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Estimation)

15 février 2012

Dernière mise à jour soumise répondant aux critères de contrôle qualité

14 février 2012

Dernière vérification

1 février 2012

Plus d'information

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 .

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