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Single-Dose Study of MK-4250 Monotherapy in Anti-Retroviral Therapy-Naive, Human Immunodeficiency Virus (HIV)-1 Infected Participants (MK-4250-002)

A Single-Dose Clinical Trial to Study the Safety, Tolerability, Pharmacokinetics, and Anti-Retroviral Activity of MK-4250 Monotherapy in Anti-Retroviral Therapy (ART)-Naive, HIV-1 Infected Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03351699
Enrollment
24
Registered
2017-11-24
Start date
2018-01-18
Completion date
2018-11-02
Last updated
2019-10-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV-1 Infection

Brief summary

The study will evaluate the safety, tolerability, pharmacokinetics, and anti-retroviral activity of MK-4250 monotherapy in anti-retroviral therapy (ART)-naïve, HIV-1 infected participants. The primary hypothesis of the study is that at a dose that is sufficiently safe and generally well tolerated, MK-4250 has superior antiretroviral activity compared to a historical placebo, as measured by change from baseline in plasma HIV-1 ribonucleic acid (RNA) (log10 copies/mL) at 168 hours postdose.

Detailed description

The study consists of 5 panels; Panel C (MK-4250 ≤600 mg) was removed from the study with Protocol Amendment 1.

Interventions

DRUGMK-4250

MK-4250 tablets for oral administration

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Male or non-pregnant and non-breast feeding female * If female with reproductive potential: must demonstrate a serum β-human chorionic gonadotropin (β -hCG) level consistent with the nongravid state and agree to use a highly effective method of birth control until 30 days after the dose of trial drug * If postmenopausal female: without menses for at least 1 year and has a documented follicle stimulating hormone (FSH) level in the postmenopausal range at pretrial (screening), AND/OR status post hysterectomy or oophorectomy * Documented HIV-1 positive as determined by a positive Enzyme-linked Immunosorbent Assay (ELISA) or Quantitative Polymerase Chain Reaction (QT-PCR) with confirmation (e.g., Western Blot). * No evidence at screening for mutations (e.g., E92Q, N55H, Q148K, Q148R and Y143R) affecting susceptibility to Integrase Strand Transfer Inhibitors (InSTIs) * Diagnosed with HIV-1 infection ≥ 3 months prior to screening or confirmed chronic HIV infection * Screening plasma Cluster of Differentiation (CD) 4+ T cell count of \>200/mm\^3 * Screening plasma HIV-1 RNA ≥5,000 copies/mL within 30 days prior to the treatment phase of this study * Anti-retroviral therapy (ART)-naïve, which is defined as having never received any antiretroviral agent OR ≤30 consecutive days of an investigational antiretroviral agent which is not an InSTI and no exposure to such an investigational antiretroviral agent within 60 days prior to screening OR ≤60 consecutive days of combination ART which does not include an InSTI and no exposure to such ART within 60 days prior to screening * Never received any InSTI * Willing to receive no other ART for the duration of the treatment phase of this study * Body Mass Index (BMI) ≤35 kg/m\^2 * Other than HIV infection, have baseline health judged to be stable

Exclusion criteria

* Mentally or legally institutionalized / incapacitated, or significant emotional problems at the time of pretrial (screening) visit or expected during the conduct of the trial or has a history of clinically significant psychiatric disorder within the last 5 years * History of clinically significant endocrine, gastrointestinal, cardiovascular, hematological, hepatic, immunological (outside of HIV-1 infection), renal, respiratory, genitourinary or major neurological abnormalities or diseases * History of cancer (malignancy). Exceptions: (1) adequately treated non-melanomatous skin carcinoma or carcinoma in situ of the cervix; (2) other malignancies which have been successfully treated ≥10 years prior to the pretrial (screening) visit with no evidence of recurrence; or, (3) deemed highly unlikely to sustain a recurrence for the duration of the trial * History of significant multiple and/or severe allergies (e.g., food, drug, latex allergy); anaphylactic reaction or significant intolerability (i.e., systemic allergic reaction) to prescription or non-prescription drugs or food; or hereditary galactose intolerance, lactose deficiency, or glucose-galactose malabsorption. * Positive for hepatitis B surface antigen * History of chronic hepatitis C (HCV) infection. Participants with a documented cure and/or a positive serologic test for HCV with a negative HCV viral load may be included * Major surgery or donated or lost 1 unit of blood (approximately 500 mL) within 4 weeks prior to the pretrial (screening) visit * Participated in another investigational trial within 4 weeks prior to the Day 1 dosing visit. The 4 week window will be derived from the date of the last trial medication and / or blood collection in a previous trial and/or an adverse event related to trial drug to the Day 1 dosing visit of the current trial * Unable to refrain from or anticipates the use of any medication, including prescription and non-prescription drugs or herbal remedies beginning approximately 2 weeks prior to administration of the initial dose of trial drug, throughout the trial, until the post-trial visit * Consumes greater than 3 glasses of alcoholic beverages (1 glass is approximately equivalent to: beer \[354 mL/12 ounces\], wine \[118 mL/4 ounces\], or distilled spirits \[29.5 mL/1 ounce\]) per day. Participants who consume 4 glasses of alcoholic beverages per day may be enrolled * Consumes excessive amounts, defined as greater than 6 servings (1 serving is approximately equivalent to 120 mg of caffeine) of coffee, tea, cola, energy-drinks, or other caffeinated beverages per day * Excessive smoker (i.e., more than 10 cigarettes/day) and is unwilling to restrict smoking to ≤10 cigarettes per day * Cardiac QTc interval ≥470 msec (for males) or ≥480 msec (for females) * Positive urine drug screen (except for cannabis) at screening and/or predose; rechecks are allowed * Is or has an immediate family member (e.g., spouse, parent/legal guardian, sibling or child) who is investigational site or Sponsor staff directly involved with this trial.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Plasma HIV-1 RNA Copies Per mL at 168 HoursBaseline and Day 7Plasma HIV-1 RNA was measured at Baseline and 168 hours after dosing. The log10 plasma HIV-RNA copies/mL measurements from participants in each panel were pooled and analyzed based on a longitudinal data analysis model. The change from Baseline in plasma HIV-1 RNA in participants administered MK-4250 was compared with historical placebo data.
Percentage of Participants Experiencing ≥1 Adverse Events (AE)Up to Day 14The percentage of participants experiencing ≥1 AE was calculated. An AE was defined as any unfavorable and unintended sign, symptom, or disease (new or worsening) temporally associated with the use of study therapy, regardless of whether or not a causal relationship with the study therapy could be determined.
Percentage of Participants Who Discontinued Study Due to an Adverse Event (AE)Up to Day 14The percentage of participants who discontinued from the study due to an adverse event was calculated. An AE was defined as any unfavorable and unintended sign, symptom, or disease (new or worsening) temporally associated with the use of study therapy, regardless of whether or not a causal relationship with the study therapy could be determined.

Secondary

MeasureTime frameDescription
Maximum Concentration (Cmax) of MK-4250 Reached in PlasmaPredose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.The maximum concentration (Cmax) of MK-4250 in plasma was observed.
Concentration of MK-4250 at 168 Hours (C168hr)168 hours after administration of MK-4250.The concentration of MK-4250 at 168 hours postdose (C168hr) was observed.
Apparent Terminal Half-life (t1/2) of MK-4250Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.The apparent terminal half-life (t1/2) of MK-4250 in plasma was calculated.
Area Under the Concentration-Time Curve From 0 to Last Measurable Concentration (AUC0-last) for MK-4250Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.The area under the concentration-time curve up to the last measurable concentration (AUC0-last) of MK-4250 in plasma was calculated.
Apparent Volume of Distribution (Vz/F) of MK-4250Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.The apparent volume of distribution (Vz/F) of MK-4250 in plasma was calculated.
Time to Maximum Concentration (Tmax) of MK-4250 Reached in PlasmaPredose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.The time to maximum concentration (Vz/F) of MK-4250 in plasma was calculated.
Apparent Clearance (CL/F) of MK-4250Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.The apparent clearance (CL/F) of MK-4250 in plasma was calculated.
Area Under the Concentration-Time Curve From 0 to Infinity (AUC0-inf) for MK-4250Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.The area under the concentration-time curve extrapolated to infinity (AUC0-inf) of MK-4250 in plasma was calculated.
Area Under the Concentration-Time Curve From 0 to 168 Hours (AUC0-168) for MK-4250Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, and 168 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time.The area under the concentration-time curve up to 168 hours (AUC0-168) of MK-4250 in plasma was calculated.

Countries

Germany

Participant flow

Participants by arm

ArmCount
Panel A: MK-4250 150 mg
Participants received MK-4250 150 mg dose by mouth on Day 1 after an 8-hour fast.
6
Panel B: MK-4250 600 mg
Participants received MK-4250 600 mg dose by mouth on Day 1 after an 8-hour fast. The decision to enroll Panel B and the dose selected (i.e., ≤600 mg) was made based on evaluation of pharmacokinetics and 7-day safety and viral load data from Panel A.
6
Panel D: MK-4250 900 mg
Participants received MK-4250 900 mg dose by mouth on Day 1 after an 8-hour fast. The decision to enroll Panel D was made upon completion of Panels A and B and evaluation of safety and viral load data from those panels.
6
Panel E: MK-4250 ≤900 mg With a Low-fat Meal
Participants received MK-4250 900 mg dose by mouth on Day 1 with a low-fat meal. The decision to enroll Panel E was made upon completion of Panel D and evaluation of safety and viral load data from that panel.
6
Panel F: MK-4250 ≤900 mg With a Moderate-fat Meal
Participants were to receive MK-4250 900 mg dose by mouth on Day 1 with a moderate-fat meal. The decision was made not to enroll Panel F because the scientific objectives were met following completion of Panel E.
0
Total24

Baseline characteristics

CharacteristicPanel A: MK-4250 150 mgPanel B: MK-4250 600 mgPanel D: MK-4250 900 mgPanel E: MK-4250 ≤900 mg With a Low-fat MealTotalPanel F: MK-4250 ≤900 mg With a Moderate-fat Meal
Age, Continuous36.3 Years
STANDARD_DEVIATION 8.1
32.5 Years
STANDARD_DEVIATION 6.1
36.5 Years
STANDARD_DEVIATION 8.9
35.5 Years
STANDARD_DEVIATION 7.3
35.2 Years
STANDARD_DEVIATION 7.3
Baseline Plasma HIV-1 Ribonucleic Acid (RNA)4.29394 log10 copies/mL
STANDARD_DEVIATION 0.412
4.42577 log10 copies/mL
STANDARD_DEVIATION 0.39577
4.85677 log10 copies/mL
STANDARD_DEVIATION 0.2379
4.42262 log10 copies/mL
STANDARD_DEVIATION 0.37308
4.49978 log10 copies/mL
STANDARD_DEVIATION 0.40099
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants6 Participants6 Participants6 Participants23 Participants0 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
6 Participants6 Participants6 Participants6 Participants24 Participants0 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
6 Participants6 Participants6 Participants6 Participants24 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 240 / 60 / 60 / 60 / 6
other
Total, other adverse events
2 / 245 / 64 / 65 / 64 / 6
serious
Total, serious adverse events
0 / 240 / 60 / 60 / 60 / 6

Outcome results

Primary

Change From Baseline in Plasma HIV-1 RNA Copies Per mL at 168 Hours

Plasma HIV-1 RNA was measured at Baseline and 168 hours after dosing. The log10 plasma HIV-RNA copies/mL measurements from participants in each panel were pooled and analyzed based on a longitudinal data analysis model. The change from Baseline in plasma HIV-1 RNA in participants administered MK-4250 was compared with historical placebo data.

Time frame: Baseline and Day 7

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Panel A: MK-4250 150 mgChange From Baseline in Plasma HIV-1 RNA Copies Per mL at 168 Hours-1.56 log10 copies per mL
Panel B: MK-4250 600 mgChange From Baseline in Plasma HIV-1 RNA Copies Per mL at 168 Hours-1.76 log10 copies per mL
Panel D: MK-4250 900 mgChange From Baseline in Plasma HIV-1 RNA Copies Per mL at 168 Hours-1.55 log10 copies per mL
Panel E: MK-4250 ≤900 mg With a Low-fat MealChange From Baseline in Plasma HIV-1 RNA Copies Per mL at 168 Hours-1.78 log10 copies per mL
Primary

Percentage of Participants Experiencing ≥1 Adverse Events (AE)

The percentage of participants experiencing ≥1 AE was calculated. An AE was defined as any unfavorable and unintended sign, symptom, or disease (new or worsening) temporally associated with the use of study therapy, regardless of whether or not a causal relationship with the study therapy could be determined.

Time frame: Up to Day 14

Population: Included all participants who received ≥1 dose of treatment. Panel F did not enroll because the scientific objectives were met following completion of Panel E.

ArmMeasureValue (NUMBER)
Panel A: MK-4250 150 mgPercentage of Participants Experiencing ≥1 Adverse Events (AE)8.3 Percentage of Participants
Panel B: MK-4250 600 mgPercentage of Participants Experiencing ≥1 Adverse Events (AE)83.3 Percentage of Participants
Panel D: MK-4250 900 mgPercentage of Participants Experiencing ≥1 Adverse Events (AE)66.7 Percentage of Participants
Panel E: MK-4250 ≤900 mg With a Low-fat MealPercentage of Participants Experiencing ≥1 Adverse Events (AE)83.3 Percentage of Participants
Panel F: MK-4250 ≤900 mg With a Moderate-fat MealPercentage of Participants Experiencing ≥1 Adverse Events (AE)66.7 Percentage of Participants
Primary

Percentage of Participants Who Discontinued Study Due to an Adverse Event (AE)

The percentage of participants who discontinued from the study due to an adverse event was calculated. An AE was defined as any unfavorable and unintended sign, symptom, or disease (new or worsening) temporally associated with the use of study therapy, regardless of whether or not a causal relationship with the study therapy could be determined.

Time frame: Up to Day 14

Population: Included all participants who received ≥1 dose of treatment. Panel F did not enroll because the scientific objectives were met following completion of Panel E.

ArmMeasureValue (NUMBER)
Panel A: MK-4250 150 mgPercentage of Participants Who Discontinued Study Due to an Adverse Event (AE)0.0 Percentage of Participants
Panel B: MK-4250 600 mgPercentage of Participants Who Discontinued Study Due to an Adverse Event (AE)0.0 Percentage of Participants
Panel D: MK-4250 900 mgPercentage of Participants Who Discontinued Study Due to an Adverse Event (AE)0.0 Percentage of Participants
Panel E: MK-4250 ≤900 mg With a Low-fat MealPercentage of Participants Who Discontinued Study Due to an Adverse Event (AE)0.0 Percentage of Participants
Panel F: MK-4250 ≤900 mg With a Moderate-fat MealPercentage of Participants Who Discontinued Study Due to an Adverse Event (AE)0.0 Percentage of Participants
Secondary

Apparent Clearance (CL/F) of MK-4250

The apparent clearance (CL/F) of MK-4250 in plasma was calculated.

Time frame: Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Panel A: MK-4250 150 mgApparent Clearance (CL/F) of MK-42500.456 Liters/HourGeometric Coefficient of Variation 54.6
Panel B: MK-4250 600 mgApparent Clearance (CL/F) of MK-42500.676 Liters/HourGeometric Coefficient of Variation 18.4
Panel D: MK-4250 900 mgApparent Clearance (CL/F) of MK-42500.879 Liters/HourGeometric Coefficient of Variation 35.9
Panel E: MK-4250 ≤900 mg With a Low-fat MealApparent Clearance (CL/F) of MK-42500.536 Liters/HourGeometric Coefficient of Variation 47.6
Secondary

Apparent Terminal Half-life (t1/2) of MK-4250

The apparent terminal half-life (t1/2) of MK-4250 in plasma was calculated.

Time frame: Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Panel A: MK-4250 150 mgApparent Terminal Half-life (t1/2) of MK-425035.9 HoursGeometric Coefficient of Variation 22.9
Panel B: MK-4250 600 mgApparent Terminal Half-life (t1/2) of MK-425038.5 HoursGeometric Coefficient of Variation 31.9
Panel D: MK-4250 900 mgApparent Terminal Half-life (t1/2) of MK-425044.1 HoursGeometric Coefficient of Variation 17.1
Panel E: MK-4250 ≤900 mg With a Low-fat MealApparent Terminal Half-life (t1/2) of MK-425048.4 HoursGeometric Coefficient of Variation 32.1
Secondary

Apparent Volume of Distribution (Vz/F) of MK-4250

The apparent volume of distribution (Vz/F) of MK-4250 in plasma was calculated.

Time frame: Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Panel A: MK-4250 150 mgApparent Volume of Distribution (Vz/F) of MK-425023.6 LitersGeometric Coefficient of Variation 45.1
Panel B: MK-4250 600 mgApparent Volume of Distribution (Vz/F) of MK-425037.6 LitersGeometric Coefficient of Variation 23.5
Panel D: MK-4250 900 mgApparent Volume of Distribution (Vz/F) of MK-425056 LitersGeometric Coefficient of Variation 31.7
Panel E: MK-4250 ≤900 mg With a Low-fat MealApparent Volume of Distribution (Vz/F) of MK-425037.4 LitersGeometric Coefficient of Variation 17.5
Secondary

Area Under the Concentration-Time Curve From 0 to 168 Hours (AUC0-168) for MK-4250

The area under the concentration-time curve up to 168 hours (AUC0-168) of MK-4250 in plasma was calculated.

Time frame: Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, and 168 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Panel A: MK-4250 150 mgArea Under the Concentration-Time Curve From 0 to 168 Hours (AUC0-168) for MK-4250751 μM·HourGeometric Coefficient of Variation 52.6
Panel B: MK-4250 600 mgArea Under the Concentration-Time Curve From 0 to 168 Hours (AUC0-168) for MK-42501980 μM·HourGeometric Coefficient of Variation 16.7
Panel D: MK-4250 900 mgArea Under the Concentration-Time Curve From 0 to 168 Hours (AUC0-168) for MK-42502280 μM·HourGeometric Coefficient of Variation 34.1
Panel E: MK-4250 ≤900 mg With a Low-fat MealArea Under the Concentration-Time Curve From 0 to 168 Hours (AUC0-168) for MK-42503640 μM·HourGeometric Coefficient of Variation 41.2
Secondary

Area Under the Concentration-Time Curve From 0 to Infinity (AUC0-inf) for MK-4250

The area under the concentration-time curve extrapolated to infinity (AUC0-inf) of MK-4250 in plasma was calculated.

Time frame: Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Panel A: MK-4250 150 mgArea Under the Concentration-Time Curve From 0 to Infinity (AUC0-inf) for MK-4250785 μM·hourGeometric Coefficient of Variation 54.6
Panel B: MK-4250 600 mgArea Under the Concentration-Time Curve From 0 to Infinity (AUC0-inf) for MK-42502120 μM·hourGeometric Coefficient of Variation 18.4
Panel D: MK-4250 900 mgArea Under the Concentration-Time Curve From 0 to Infinity (AUC0-inf) for MK-42502450 μM·hourGeometric Coefficient of Variation 35.9
Panel E: MK-4250 ≤900 mg With a Low-fat MealArea Under the Concentration-Time Curve From 0 to Infinity (AUC0-inf) for MK-42504010 μM·hourGeometric Coefficient of Variation 47.6
Secondary

Area Under the Concentration-Time Curve From 0 to Last Measurable Concentration (AUC0-last) for MK-4250

The area under the concentration-time curve up to the last measurable concentration (AUC0-last) of MK-4250 in plasma was calculated.

Time frame: Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Panel A: MK-4250 150 mgArea Under the Concentration-Time Curve From 0 to Last Measurable Concentration (AUC0-last) for MK-4250774 μM·hourGeometric Coefficient of Variation 54
Panel B: MK-4250 600 mgArea Under the Concentration-Time Curve From 0 to Last Measurable Concentration (AUC0-last) for MK-42502040 μM·hourGeometric Coefficient of Variation 17.1
Panel D: MK-4250 900 mgArea Under the Concentration-Time Curve From 0 to Last Measurable Concentration (AUC0-last) for MK-42502390 μM·hourGeometric Coefficient of Variation 35
Panel E: MK-4250 ≤900 mg With a Low-fat MealArea Under the Concentration-Time Curve From 0 to Last Measurable Concentration (AUC0-last) for MK-42503860 μM·hourGeometric Coefficient of Variation 44.3
Secondary

Concentration of MK-4250 at 168 Hours (C168hr)

The concentration of MK-4250 at 168 hours postdose (C168hr) was observed.

Time frame: 168 hours after administration of MK-4250.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Panel A: MK-4250 150 mgConcentration of MK-4250 at 168 Hours (C168hr)0.558 μMGeometric Coefficient of Variation 117
Panel B: MK-4250 600 mgConcentration of MK-4250 at 168 Hours (C168hr)2.2 μMGeometric Coefficient of Variation 57.4
Panel D: MK-4250 900 mgConcentration of MK-4250 at 168 Hours (C168hr)2.38 μMGeometric Coefficient of Variation 63.8
Panel E: MK-4250 ≤900 mg With a Low-fat MealConcentration of MK-4250 at 168 Hours (C168hr)4.37 μMGeometric Coefficient of Variation 96.4
Secondary

Maximum Concentration (Cmax) of MK-4250 Reached in Plasma

The maximum concentration (Cmax) of MK-4250 in plasma was observed.

Time frame: Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Panel A: MK-4250 150 mgMaximum Concentration (Cmax) of MK-4250 Reached in Plasma16.6 μMGeometric Coefficient of Variation 46.7
Panel B: MK-4250 600 mgMaximum Concentration (Cmax) of MK-4250 Reached in Plasma37.6 μMGeometric Coefficient of Variation 26
Panel D: MK-4250 900 mgMaximum Concentration (Cmax) of MK-4250 Reached in Plasma43.5 μMGeometric Coefficient of Variation 32.7
Panel E: MK-4250 ≤900 mg With a Low-fat MealMaximum Concentration (Cmax) of MK-4250 Reached in Plasma65 μMGeometric Coefficient of Variation 25.8
Secondary

Time to Maximum Concentration (Tmax) of MK-4250 Reached in Plasma

The time to maximum concentration (Vz/F) of MK-4250 in plasma was calculated.

Time frame: Predose and 0.5, 1, 2, 4, 6, 8, 12, 24, 48, 120, 168, 192, and 240 hours after administration of MK-4250. For Panel B only, the first three participants additionally had a 72-hour postdose time, and no 240-hour postdose time.

Population: All participants who complied with the protocol sufficiently to ensure data would likely exhibit the effects of treatment, according to the scientific model. Compliance included treatment exposure, measurement availability, and lack of major protocol deviations. Panel F did not enroll because the objectives were met following completion of Panel E.

ArmMeasureValue (MEDIAN)
Panel A: MK-4250 150 mgTime to Maximum Concentration (Tmax) of MK-4250 Reached in Plasma4.00 Hours
Panel B: MK-4250 600 mgTime to Maximum Concentration (Tmax) of MK-4250 Reached in Plasma4.00 Hours
Panel D: MK-4250 900 mgTime to Maximum Concentration (Tmax) of MK-4250 Reached in Plasma4.00 Hours
Panel E: MK-4250 ≤900 mg With a Low-fat MealTime to Maximum Concentration (Tmax) of MK-4250 Reached in Plasma4.00 Hours

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026