A Randomised, Phase 3 Non-inferiority Study of DOR/3TC/TDF Compared to DTG/TAF/FTC in Participants Infected With HIV-1 Starting First-line Antiretroviral Therapy
Opti-DOR
Opti-DOR: A Randomised, Phase 3 Non-inferiority Study of DOR/3TC/TDF Compared to DTG/TAF/FTC in Participants Infected With HIV-1 Starting First-line Antiretroviral Therapy
2 other identifiers
interventional
600
1 country
1
Brief Summary
This is an open label, randomised, phase 3, two-arm study conducted over 96 weeks. The study includes a screening period day - 60 to -1, enrolment visit day 0, and a 96-week treatment follow-up period. Approximately 600 male and female participants infected with HIV-1 eligible for first-line therapy, will be randomly assigned in a 1:1 ratio approximately 300 participants per treatment group to either Treatment Group 1 DOR/3TC/TDF or Treatment Group 2 DTG/TAF/FTC. All medications will be administered in an open label design.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Nov 2023
Typical duration for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 23, 2023
CompletedFirst Posted
Study publicly available on registry
June 29, 2023
CompletedStudy Start
First participant enrolled
November 8, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 30, 2026
April 2, 2025
March 1, 2025
2.6 years
May 23, 2023
March 27, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The antiretroviral activity of DOR/3TC/TDF compared to DTG/TAF/FTC in the first line treatment, as assessed by the percentage of participants with HIV-1 RNA < 50 copies/mL at Week 48
HIV1-RNA
48 Weeks
Secondary Outcomes (11)
The antiretroviral activity of DOR/3TC/TDF compared to DTG/TAF/FTC, as assessed by the percentage of participants with HIV-1 RNA < 50 copies/mL at Week 96
96 Weeks
The antiretroviral activity of DOR/3TC/TDF compared with DTG/TAF/FTC, as assessed by the percentage of participants with HIV-1 RNA <200 copies/mL at Week 48 and Week 96
48 and 96 Weeks
Time to virologic failure (defined as confirmed HIV-1 RNA levels ≥ 1000 copies/mL at week 24 or ≥ 200 copies/mL after week 24)
24 Weeks
The immunologic effect of DOR/3TC/TDF compared with DTG/TAF/FTC, as assessed by the mean change from baseline in CD4+ T-cell count at Week 48 and Week 96
48 and 96 Weeks
Incidence of Treatment-Emergent Adverse Events (Safety and Tolerability)
96 Weeks
- +6 more secondary outcomes
Other Outcomes (6)
To evaluate the pharmacokinetics of DOR in pregnant women
96 Weeks
Number of pregnant women with treatment related adverse events as assessed by (DAIDS) Table for Grading the Severity of Adult and Pediatric Adverse Events v2.1
96 Weeks
To describe Patient-Reported Outcomes (PROs) for participants who received DOR/3TC/TDF compared with DTG/TAF/FTC overtime
96 Weeks
- +3 more other outcomes
Study Arms (2)
Treatment Group 1
EXPERIMENTALDelstrigo
Treatment Group 2
OTHERKOCITAF
Interventions
Treatment Group 1 Participants will receive Doravirine, as part of a fixed-dose oral combination with lamivudine and tenofovir disoproxil fumarate (DOR/3TC/TDF, Delstrigo)tablets which are to be administered orally and once daily.
Treatment Group 2 Participants will receive dolutegravir, as part of a fixed-dose oral combination with tenofovir alafenamide plus emtricitabine (DTG/TAF/FTC, KOCITAF) tablets which are to be administered orally and once daily.
Eligibility Criteria
You may qualify if:
- Each participant must meet all the following criteria to be enrolled in this study.
- ≥18 years old, male or female.
- Documented laboratory diagnosis of infection with HIV-1 (positive enzyme-linked immunosorbent assay HIV-1 antibody test) at screening, with no baseline DOR resistance (please see Table 2 below).
- Is ART naïve.
- BMI≥ 25 kg/cm2.
- VL \>500 copies/ml.
- Must sign an ICF indicating that he or she understands the purpose of, and procedures required for the study and is willing to participate in the study.
- Female participants of childbearing potential (WOCBP) are eligible to participate if willing to use highly effective contraception methods from enrolment, for the duration of the study.
You may not qualify if:
- Participants meeting any of the following criteria will be excluded from the study:
- Is currently participating in any other interventional study or participated in a study with an investigational drug within 60 days of screening.
- Is pregnant, breastfeeding or intends to become pregnant or breastfeed during the study.
- Has active TB co-infection and requires anti-TB treatment.
- Has unstable liver disease (as defined by the presence of ascites, encephalopathy, coagulopathy, hypalbuminaemia, oesophageal or gastric varices, or persistent jaundice), cirrhosis, known biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones); Child-Pugh C.
- Has pre-existing physical or mental condition (including substance abuse disorder and suicide risk) which, in the opinion of the Investigator, may interfere with the participant's ability to comply with the dosing schedule and/or protocol evaluations or which may compromise the safety of the participant.
- Clinically unstable in the investigator's opinion (any pre-existing medical or laboratory abnormalities must be deemed to be stable by the investigator prior to study enrolment).
- Has estimated creatinine clearance \<60mL/min per Cockcroft-Gault formula.
- Is taking, and is unable to discontinue, any of the following prohibited medications: carbamazepine, oxcarbazepine, phenobarbital, phenytoin; the antimycobacterial rifampicin, rifapentine; St. John's Wort (Hypericum perforatum); mitotane; enzalutamide; lumacaftor.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Professor Francois Venterlead
- Africa Health Research Institutecollaborator
- Merck Sharp & Dohme LLCcollaborator
Study Sites (1)
Ezintsha Research Centre
Johannesburg, Gauteng, 2193, South Africa
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
JOANA FRANCISCA WOODS, MBBCh
Ezintsha Resesarch Centre
- STUDY DIRECTOR
SIMISO MANDISA Sokhela, MBBCh
Ezintsha Research Centre
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
May 23, 2023
First Posted
June 29, 2023
Study Start
November 8, 2023
Primary Completion (Estimated)
June 30, 2026
Study Completion (Estimated)
June 30, 2026
Last Updated
April 2, 2025
Record last verified: 2025-03
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, ICF, CSR
- Time Frame
- Immediately following publication