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NCT07618507Completed

Resistance Profile to Antiretroviral Medications in Individuals Living With HIV Who Failed a First-Line Regimen With Tenofovir / Lamivudina and Dolutegravir in Brasil

Source: ClinicalTrials.gov · Last updated 10 Jun 2026

Brief summary (registry, in English)

The goal of this study is to understand the profile of individuals who demonstrate transmitted drug resistance to Dolutegravir (DTG) among PLHIV in Brazil in terms of the subtypes of virus and other individual characteristics after 24 weeks of treatment with a regimen of DTG, Tenofovir, and Lamivudine (TL+D). The study also seeks to determine what alterations occur in the 3'-PPT region of the HIV virus in patients with failing the TL+D regimen. The test group will be compared to a control group of individuals randomly selected whose viral control remains below detection limit (50 copies/mL) for 24 weeks after the initiation of treatment. The study uses clinics in cities in each of the five regions of Brazil: South region (Porto Alegre, Viamão), Southeast region (São Paulo, Santos, Guarujá), Northeast region (Salvador), Center West region (Brasília), and the North region (Manaus). Porto Alegre and Viamão are of interest because of the strong presence of subtype C in the South region. Salvador is a focus for subtype F of HIV. Finally, in Santos there is a strong presence of recombinant forms of subtypes F and B. These non-B subtypes are important to the study as they are typical of other medium and low income countries. The plan for the study includes 200 cases who will receive the TL+D medication for 24 weeks (50 in each region) and 400 controls again spread among the regions on a 1 (case): 2(control ratio.

Status (registry)
Completed
Study type
Interventional
Enrollment
777 (actual)
First submitted
25 May 2026
Start date
13 Apr 2022
Primary completion date
8 Mar 2024
Lead sponsor
Federal University of São Paulo
Diseases
HIV
NCT number
NCT07618507

What you commit to

  • Study type: Interventional
  • Participants enrolled: 777
  • From 13 Apr 2022 to the primary completion date, 8 Mar 2024
  • 9 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Resistant to reverse transcriptase inhibitor drugs (NRTI)

Who the study is looking for

  • Age between 18 and 70 ART therapy naive

Age in the registry: 18 years to 70 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (9)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Centro Especializado em Doenças Infecciosas (CEDIN-DF)
Coordinator of this site? Confirm its status
BrasíliaBrazilUnknown status
Unidade de Infectologia William Rocha
Coordinator of this site? Confirm its status
GuarujáBrazilUnknown status
Fundação de Medicina Tropical Doutor Heitor Vieira Dourado
Coordinator of this site? Confirm its status
ManausBrazilUnknown status
LADI - Laboratório de Apoio Diagnóstico em Infectologia (Hospital Universitário Miguel Riet Corrêa Jr)
Coordinator of this site? Confirm its status
Porto AlegreBrazilUnknown status
Hospital Nossa Senhora da Conceição
Coordinator of this site? Confirm its status
Porto AlegreBrazilUnknown status
Centro Estadual Especializado em Diagnóstico, Assistência e Pesquisa (CEDAP)
Coordinator of this site? Confirm its status
SalvadorBrazilUnknown status
Retrovirology Laboratory - UNIFESP
Coordinator of this site? Confirm its status
São PauloBrazilUnknown status
Hospital Santa Marcelina
Coordinator of this site? Confirm its status
São PauloBrazilUnknown status
Serviço Especializado em IST/HIV/AIDS Viamão
Coordinator of this site? Confirm its status
ViamãoBrazilUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.