Approval Probability
TA Base Rate
Adjusted LOA
ML Risk
MK-8558 · 1 trial · 1 indication
Plasma was collected at baseline and at 168 hours post-dose to determine the change from baseline in HIV-1 ribonucleic acid (RNA) concentration. The log10 plasma HIV-RNA was measured and analyzed based on a longitudinal data analysis (LDA) model containing fixed effects for dose level and time.
An Adverse Event (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.
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.
| Arm | Type | Description |
|---|---|---|
| Panel A. MK-8558 400 mg | EXPERIMENTAL | Single oral dose of MK-8558 administered at 400 mg following a 10-hour fast. |
| Panel B. MK-8558 at dose level 2 | EXPERIMENTAL | Single oral dose of MK-8558 administered at dose level 2 following a 10-hour fast. Dose level 2 shall not exceed 900 mg. Per protocol, dose will be selected following review of data from panel A. |
| Panel C. MK-8558 at dose level 3 | EXPERIMENTAL | Single oral dose of MK-8558 administered at dose level 3 following a 10-hour fast. Dose level 3 shall not exceed 1600 mg. Per protocol, dose will be selected following review of data from panel B. |
| Panel D. MK-8558 at dose level 4 | EXPERIMENTAL | Single oral dose of MK-8558 administered at dose level 4 following a low-fat breakfast. Dose level 4 shall not exceed 1600 mg. Per protocol, Panel D is optional pending results of Panels A-C, and dose will be selected following review of data from panel C. |
| Name | Type | Description |
|---|---|---|
| MK-8558 | DRUG | Single dose of MK-8558 administered as a tablet at a dose up to 1600 mg. |
Inclusion Criteria: * Other than having HIV infection, is in good health based on medical history, physical examination, vital sign (VS) measurements, and laboratory safety tests, at the pre-study (screening) visit and/or prior to administration of the study drug * Is documented as being HIV-1 posi...
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MK-8558 is an investigational small molecule being developed for the treatment of HIV-1 infection. It is currently in Phase 1 clinical development and has been studied as a monotherapy in antiretroviral-naive HIV-1 infected participants.
MK-8558 is being developed by Merck & Company, Inc., which trades on the New York Stock Exchange under the ticker symbol MRK. The company is conducting clinical research on this investigational drug for HIV-1 infection.
MK-8558 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. One Phase 1 trial has been completed, and the drug remains under clinical investigation for HIV-1 infection.
MK-8558 has been studied in one completed Phase 1 clinical trial, NCT03859739, titled "Safety, Tolerability, Pharmacokinetics, and Anti-Retroviral Activity of MK-8558 Monotherapy in Anti-Retroviral-Naïve HIV-1 Infected Participants (MK-8558-002)." The trial enrolled 21 participants in Germany and Romania.
MK-8558 is a distinct investigational compound developed by Merck & Company, Inc. It is not known to be marketed under any other name. The drug is being studied specifically for its potential role in treating HIV-1 infection.