Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
| NCT ID | Title | Phase | Status | Enrollment | Velocity | Design | Start | Completion | Last Updated | Sites | Countries |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NCT05766501 | A Study of Doravirine/Islatravir (DOR/ISL, MK-8591A) for the Treatment of Human Immunodeficiency Virus 1 (HIV-1) Infection in Participants Who Previously Received DOR/ISL (MK-8591A-054) | PHASE3 | ACTIVE NOT_RECRUITING | 641 | — | — | Mar 17, 2023 | Sep 6, 2028 | Dec 17, 2025 | 95 | United States, Argentina +13 |
| NCT04223778 | Safety and Efficacy of a Switch to Doravirine/Islatravir in Participants With HIV-1 (MK-8591A-017) | PHASE3 | COMPLETED | 672 | — | — | Feb 18, 2020 | Aug 26, 2024 | Feb 18, 2026 | 78 | United States, Australia +13 |
| NCT04223791 | Switch to Doravirine/Islatravir (DOR/ISL) in Human Immunodeficiency Virus 1 (HIV-1) Participants Treated With Bictegravir/Emtricitabine/Tenofovir Alafenamide (BIC/FTC/TAF) (MK-8591A-018) | PHASE3 | COMPLETED | 643 | — | — | Feb 18, 2020 | Feb 27, 2025 | Mar 27, 2026 | 89 | United States, Australia +9 |
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention. The percentage of participants who experience an AE through Week 96 will be presented.
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention. The percentage of participants who discontinue study intervention due to an AE through Week 96 will be presented.
HIV-1 RNA levels in blood samples taken at each visit were measured by the Abbott RealTime polymerase chain reaction (PCR) assay with a reliable lower limit of quantification of 40 copies/mL. The percentage of participants with HIV-1 RNA ≥50 copies/mL at Week 48 is presented using the FDA Snapshot missing data approach.
An AE was defined as any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The percentage of participants who experienced at least one AE was reported.
An AE was defined as any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The percentage of participants who discontinued study intervention due to an AE was reported.
The Abbott RealTime polymerase chain reaction (PCR) assay with a reliable lower limit of quantification of 40 copies/mL was used to measure the HIV-1 RNA level in blood samples obtained at each visit. Per protocol, the primary outcome measure, the percentage of participants with HIV-1 RNA ≥50 copies/mL at Week 48, is presented using the Food and Drug Administration (FDA) Snapshot missing data approach. The percentage values were rounded to the nearest tenth digit.
| Arm | Type | Description |
|---|---|---|
| DOR/ISL | EXPERIMENTAL | Participants will receive fixed dose combination (FDC) tablet of DOR/ISL (100 mg/0.25 mg) taken once daily (QD) orally from Day 1 to Week 96. After Week 96, eligible participants may continue on DOR/ISL until week 240 or until DOR/ISL becomes commercially accessible, whichever comes first. |
| Group 1: Doravirine/Islatravir (DOR/ISL) | EXPERIMENTAL | Participants who were previously treated with continuous baseline antiretroviral therapy (ART) will receive DOR/ISL, a fixed dose combination (FDC) of 100 mg doravirine (DOR)/0.75 mg islatravir (ISL) orally once daily for 96 weeks. |
| Group 2: Baseline Antiretroviral Therapy (ART) | ACTIVE_COMPARATOR | Participants received continuous baseline ART for 48 weeks. Continuing participants delayed switch over from baseline ART to DOR/ISL, fixed dose combination of 100 mg DOR/0.75 mg ISL orally once daily, from Week 48 to Week 96, a total DOR/ISL treatment duration of 48 Weeks. |
| BIC/FTC/TAF | ACTIVE_COMPARATOR | Participants with Human Immunodeficiency Virus-1 (HIV-1) that have been virologically suppressed for ≥3 consecutive months with no history of treatment failure who were previously treated with bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) received once daily (QD) 50 mg bictegravir (BIC), 200 mg emtricitabine (FTC), 25 mg tenofovir alafenamide (TAF) for 144 weeks, and placebo to fixed dose combination (FDC) DOR/ISL for 96 weeks. At Week 144, participants who consent to enter the optional open-label study extension will continue to receive QD BIC/FTC/TAF (50 mg/200 mg/25 mg) for an additional 24 weeks, up to Week 168. |
| Name | Type | Description |
|---|---|---|
| DOR/ISL | DRUG | FDC tablet of 100 mg doravirine (DOR)/0.25 mg islatravir (ISL) taken once daily |
| ART | DRUG | Baseline ART regimen will be administered as per approved label. ART medication will not be provided by the Sponsor; participants will provide their own ART medications. Allowed drug classes include nucleoside analog reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), protease inhibitors (PIs), integrase strand transferase inhibitors (InSTIs), fusion inhibitors, chemokine receptor 5 (CCR5) antagonists, post-attachment inhibitor, and pharmacokinetic (PK) boosters. |
| BIC/FTC/TAF | DRUG | 50 mg BIC, 200 mg FTC, and 25 mg TAF combined in a single tablet, taken orally once daily |
| Placebo to BIC/FTC/TAF | DRUG | Placebo to BIC/FTC/TAF in a single tablet taken orally, once daily |
| Placebo to FDC DOR/ISL | DRUG | Placebo to FDC DOR/ISL in a single tablet taken orally, once daily |
Inclusion Criteria: * Is currently receiving doravirine/islatravir (DOR/ISL) adult fixed dose combination (FDC) tablet in Merck Sharp \& Dohme (MSD)-sponsored clinical studies (MK-8591A-018, -020, and -033 \[except for heavily treatment-experienced (HTE) participants\]). Exclusion Criteria: * Has...