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| ID | Type | Description | Link |
|---|---|---|---|
| MK-8510-002 | Other Identifier | Merck | |
| 2021-006180-21 | EudraCT Number |
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Business Reasons
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The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and anti-retroviral activity of MK-8510 monotherapy in anti-retroviral-naïve HIV-1 infected participants.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Panel A: MK-8510 at dose level 1 | Experimental | Single oral dose of MK-8510 administered at dose level 1 (≤1800 mg) following a 10-hour fast. Dose level 1 shall not exceed 1800 mg. |
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| Panel B: MK-8510 at dose level 2 | Experimental | Single oral dose of MK-8510 administered at dose level 2 (≤2200 mg) following a 10-hour fast. Dose level 2 shall not exceed 2200 mg. |
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| Panel C: MK-8510 at dose level 3 | Experimental | Single oral dose of MK-8510 administered at dose level 3 (≤2200 mg) following a 10-hour fast. Dose level 3 shall not exceed 2200 mg. |
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| Panel D: MK-8510 at dose level 4 | Experimental | Single oral dose of MK-8510 administered at dose level 4 (≤2200 mg) following a 10-hour fast. Dose level 4 shall not exceed 2200 mg. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| MK-8510 | Drug | Single dose of MK-8510 administered as a tablet at a dose up to 2200 mg. |
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| Measure | Description | Time Frame |
|---|---|---|
| Change from Baseline in Plasma HIV-1 Ribonucleic Acid (RNA) | The plasma HIV-RNA will be measured based on a longitudinal data analysis model containing fixed effects for dose level, and dose level by time interaction, and a random effect of MK-8510 (prodrug). The change from baseline for each dose level at 168-hours post baseline will be estimated from this model. | Baseline and 168 hours post-dose |
| Percentage of Participants Who Experience an Adverse Event (AE) | An AE is defined as any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. | Up to 36 days |
| Percentage of Participants Who Discontinued from Study Due to an Adverse Event (AE) | The percentage of participants who discontinue study due to an AE will be presented. | Up to 36 days |
| Measure | Description | Time Frame |
|---|---|---|
| Area Under the Concentration-Time Curve of MK-8558 From Time 0 to 168 Hours (AUC0-168 hr) | The AUC0-168 of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 5, 6, 12, 24, 48, 72, 120, 168 hours post-dose. | At protocol specific timepoints up to 168 hours post-dose |
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Inclusion Criteria:
Has HIV-1 infection, and is in good health based on medical history, physical examination, vital signs (VS) measurements, and laboratory safety tests.
Has documented HIV-1 positive, as determined by a positive enzyme-linked immunosorbent assay (ELISA) or real-time quantitative polymerase chain reaction (QT-PCR) with confirmation (eg, Western Blot).
Is anti-retroviral therapy (ART)-naïve, which is defined as:
Is willing to receive no other ART prior to Day 11 post-dose of the study.
Has a body mass index (BMI) ≤35 kg/m2.
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Medical Director | Merck Sharp & Dohme LLC | Study Director |
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| Area Under the Concentration-Time Curve of MK-8558 From Time 0 to last (AUC0-last) | AUC0-last of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 5, 6, 12, 24, 48, 72, 120, 168, 240, 336, 504 hours post-dose. | At protocol specific time points up to 504 hours post-dose |
| Concentration at 168 Hours Post-dose (C168) of MK-8558 | C168hr of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated. | 168 hours post-dose |
| Maximum Concentration (Cmax) of MK-8558 | Cmax of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 5, 6, 12, 24, 48, 72, 120, 168, 240, 336, 504 hours post-dose. | At protocol specific time points up to 504 hours post-dose |
| Time to Maximum Plasma Concentration (Tmax) of MK-8558 | Tmax of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 5, 6, 12, 24, 48, 72, 120, 168, 240, 336, 504 hours post-dose. | At protocol specific time points up to 504 hours post-dose |
| Half Life (t1/2) of MK-8558 | t1/2 of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 5, 6, 12, 24, 48, 72, 120, 168, 240, 336, 504 hours post-dose. | At protocol specific time points up to 504 hours post-dose |
| Apparent Plasma Clearance of Drug After Extravascular Administration (CL/F) of MK-8558 | CL/F of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 5, 6, 12, 24, 48, 72, 120, 168, 240, 336, 504 hours post-dose. | At protocol specific time points up to 504 hours post-dose |
| Apparent Volume of Distribution in the Terminal State After Extravascular Administration (Vz/F) of MK-8558 | Vz/F of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 5, 6, 12, 24, 48, 72, 120, 168, 240, 336, 504 hours post-dose. | At protocol specific time points up to 504 hours post-dose |
| Terminal t1/2 of MK-8558 | Terminal t1/2 of MK-8558 (active drug) after administration of MK-8510 (prodrug) in plasma will be calculated pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 5, 6, 12, 24, 48, 72, 120, 168, 240, 336, 504 hours post-dose. | At protocol specific time points up to 504 hours post-dose |
| ID | Term |
|---|---|
| D000163 | Acquired Immunodeficiency Syndrome |
| ID | Term |
|---|---|
| D015658 | HIV Infections |
| D000086982 | Blood-Borne Infections |
| D003141 | Communicable Diseases |
| D007239 | Infections |
| D015229 | Sexually Transmitted Diseases, Viral |
| D012749 | Sexually Transmitted Diseases |
| D016180 | Lentivirus Infections |
| D012192 | Retroviridae Infections |
| D012327 | RNA Virus Infections |
| D014777 | Virus Diseases |
| D012897 | Slow Virus Diseases |
| D000091662 | Genital Diseases |
| D000091642 | Urogenital Diseases |
| D007153 | Immunologic Deficiency Syndromes |
| D007154 | Immune System Diseases |
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