Latency and Early Neonatal Provision of Antiretroviral Drugs Clinical Trial

NCT02431975 — Phase 4, Completed, 73 participants, Columbia University

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RegistryNCT02431975, acronym LEOPARD
StatusCompleted
PhasePhase 4
Study typeInterventional; na, single group, masking: none, treatment
Enrollment73 (Actual)
SponsorColumbia University (Other); collaborators: National Institutes of Health (NIH), University of Witwatersrand, South Africa, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
ConditionsHIV
InterventionsNevirapine, Zidovudine, Lamivudine, LPV/r (Drug)
Datesstart 2015-08-01, primary completion 2020-04-30, completion 2020-04-30, first posted 2015-05-01, last updated 2020-08-04
Locations1 site in South Africa

Related Papers Related Patents Related Grants Related Experts
All trials for HIV All trials of Nevirapine All trials of Zidovudine

-Summary

The investigators propose a non-randomized clinical trial of 60 HIV-infected infants identified within 48 hours of birth and their mothers to investigate the consequences of very early ART on the establishment and maintenance of the viral reservoir.

The first phase (early ART initiation within 48 hours of birth) will examine the trajectory i.e. changes over time of the viral reservoir and detection of HIV-specific antibody responses in infants testing HIV-positive within 48 hours of birth and initiating early ART.

Secondary pathogenesis aims will test whether markers of neonatal immune quiescence are associated with the extent of seeding and rate of decline of the viral reservoir when ART is started at a young age and investigate whether markers in infant stool samples can be used as a non-invasive method of defining relevant immune and HIV-specific parameters associated with viral reservoir size.

The investigators hypothesize that developmental characteristics of newborn immunity may make this period the optimal time to begin ART and influence the seeding of the viral reservoir.

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+Detailed description

Prevention of mother-to-child transmission (PMTCT) programs using antiretrovirals (ARVs) have had tremendous success in sub-Saharan Africa. However, HIV transmission continues to occur because (1) implementation of PMTCT is incomplete and (2) ARV interventions are not 100% effective in blocking infection. Thus the challenge of providing treatment to HIV-infected children is far from over. The capacity of early ART treatment to favorably influence the viral reservoir and potentially lead to post-treatment cessation viral control needs to be described in the population of infants, and to identify useful public health strategies.

+Arms and interventions

ArmTypeInterventionsDescription
Early ARTExperimentalDrug: Nevirapine; Drug: Zidovudine; Drug: Lamivudine; Drug: LPV/rAll infants enrolled in the trial, regardless of maternal PMTCT regimen, will be initiated on a triple ARV regimen consisting of nevirapine (NVP), zidovudine (ZDV) and lamivudine (3TC) presumptively based on the initial positive result. This regimen will be continued to 42 weeks post menstrual age (PMA). At this time, infants will be switched to LPV/r, ZDV and 3TC to be continued to 104 weeks or longer unless otherwise preferred by the treating clinician or if any clinical or laboratory contraindications are identified.
  • Nevirapine (Drug), also known as NVP, Viramune: Standard medication used to treat and prevent HIV/AIDS, specifically HIV-1. It is generally recommended for use with other antiretroviral medication. The initial dose of NVP will be 6 mg per kg per dose orally twice daily until 42 weeks gestational age (2 weeks of age for infants born at term) which is the dosing selected by the NIH International Maternal, Pediatric, Adolescent AIDS Clinical Trials (IMPAACT) Network.
  • Zidovudine (Drug), also known as ZDV, Retrovir: An antiretroviral medication used to prevent and treat HIV/AIDS. It is generally recommended for use with other antiretroviral. ZDV will be dosed as per standard guideline and routine practices.
  • Lamivudine (Drug), also known as 3TC, Epivir: An antiretroviral medication used to prevent and treat HIV/AIDS. It is effective against both HIV-1 and HIV-2. 3TC will be dosed as per standard guideline and routine practices.
  • LPV/r (Drug), also known as Ritonavir-boosted lopinavir: Lopinavir is an antiretroviral of the protease inhibitor class. It is used against HIV infections as a fixed-dose combination with another protease inhibitor, ritonavir. LPV/r will be dosed as per standard guideline and routine practices.

+Outcome measures

Primary outcomes

  • Percent of patients with initial viral suppression [24 weeks]: Suppression is defined as patients with plasma HIV RNA <50 copies/mL.

Secondary outcomes

  • Percent of patients maintaining viral suppression [Between 24 and104 weeks]: Suppression is defined as patients with plasma HIV RNA <50 copies/mL.
  • Prevalence of CD4 percentage greater than 30 [By 24 weeks and sustained through 104 weeks]: Patients that reached a normal CD4% level.
  • Prevalence of growth along curve within one standard deviation or upward trend [Up to 104 weeks]: By comparing viral growth curves.
  • Prevalence of detection of specific HIV antibody classes [24 and 104 weeks]: HIV antibody detection
  • Size of the viral reservoir (copies/million cell) [Up to 104 weeks]: Quantification of viral reservoir

+Eligibility

Sex: All, ages: any to 48 Hours

Inclusion Criteria:

* Point of care (POC) or laboratory-based test positive on a sample collected within 48 hours of birth.
* Mother willing and able to provide informed consent.

Exclusion Criteria:

* Expressed intention to leave the Johannesburg area permanently.
* Co-morbidities, birth defects or other conditions which in the opinion of the clinical team have a greater than 50% risk of mortality in the first days of life.
* Co-morbidities or conditions which in the opinion of the clinical team advise against initiation of ART within the first 48 hours of life.
* Active (uncontrolled) maternal psychiatric illness.

+Locations (1)

FacilityCityCountryStatus
Rahima Moosa Mother and Child HospitalJohannesburg, GautengSouth Africa

+Publications

  • Results publication: Barrios-Tascon A, Strehlau R, Patel F, Burke M, Shiau S, Shen Y, Arpadi SM, Abrams EJ, Tiemessen CT, Kuhn L; LEOPARD study team. Growth Trajectories Over the First Year of Life Among Early-Treated Infants with Human Immunodeficiency Virus and Infants Who are Human Immunodeficiency Virus-Exposed Uninfected. J Pediatr. 2024 Jul;270:114018. doi: 10.1016/j.jpeds.2024.114018. Epub 2024 Mar 19. PMID 38508485
  • Results publication: Kuhn L, Paximadis M, Da Costa Dias B, Shen Y, Mncube S, Strehlau R, Shiau S, Patel F, Burke M, Technau KG, Sherman G, Loubser S, Abrams EJ, Tiemessen CT. Predictors of Cell-Associated Human Immunodeficiency Virus (HIV)-1 DNA Over 1 Year in Very Early Treated Infants. Clin Infect Dis. 2022 Mar 23;74(6):1047-1054. doi: 10.1093/cid/ciab586. PMID 34185838
  • Results publication: Kuhn L, Strehlau R, Shiau S, Patel F, Shen Y, Technau KG, Burke M, Sherman G, Coovadia A, Aldrovandi GM, Hazra R, Tsai WY, Tiemessen CT, Abrams EJ; LEOPARD Study Team. Early antiretroviral treatment of infants to attain HIV remission. EClinicalMedicine. 2020 Jan 7;18:100241. doi: 10.1016/j.eclinm.2019.100241. eCollection 2020 Jan. PMID 31993578

+Investigators

+Funding

NIH grants: U01HD080441