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MK-7762

Phase 1

Tuberculosis | Small molecule | Infectious Disease |Merck & Company, Inc.|Last Updated: Jun 4, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment119

FDA Designations

No designations recorded

Clinical trial landscape

MK-7762 · 1 trial · 1 indication

Phase 1 1
NCT05824091Safety, Tolerability, Pharmacokinetics (PK), and Food Effect of MK-7762 in Healthy AdultsTuberculosis
COMPLETED119 Analytics
PHASE1COMPLETED
Safety, Tolerability, Pharmacokinetics (PK), and Food Effect of MK-7762 in Healthy Adults
TuberculosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Part 1: Percentage of Participants Reporting Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), and Adverse Events of Special Interest (AESIs)
Day 1 through Day 7

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant. A SAE is defined as any untoward medical occurrence that, at any dose: results in death or is life-threatening or requires inpatient hospitalization or prolongation of existing hospitalization or results in persistent disability/incapacity or is a congenital anomaly/birth defect or is a medically significant / important event or reaction. AESIs are adverse events that the Sponsor monitored carefully and were subject to expedited reporting to the Sponsor.

Part 1: Percentage of Participants Reporting TEAEs by Severity
Day 1 through Day 7

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant. The intensity for each AE reported during the study were assigned to 1 of 5 categories: Grade 1 Mild symptoms, causing no or minimal interference with usual social and functional activities with intervention not indicated; Grade 2 Moderate symptoms, causing greater than minimal interference with usual social and functional activities with intervention indicated; Grade 3 Severe symptoms, causing inability to perform usual social and functional activities with intervention or hospitalization indicated; Grade 4 Potentially life-threatening symptoms, causing inability to perform basic self-care functions with intervention indicated to prevent permanent impairment, persistent disability, or death and Grade 5: Fatal.

Part 1: Percentage of Participants Reporting Study Drug Related TEAEs
Day 1 through Day 7

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant.

Part 2: FE Cohort 7: Percentage of Participants Reporting TEAEs, SAEs, and AESIs
Up to Day 7

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant. A SAE is defined as any untoward medical occurrence that, at any dose: results in death or is life-threatening or requires inpatient hospitalization or prolongation of existing hospitalization or results in persistent disability/incapacity or is a congenital anomaly/birth defect or is a medically significant / important event or reaction. AESIs are adverse events that the Sponsor monitored carefully and were subject to expedited reporting to the Sponsor.

Part 2: FE Cohort 7: Percentage of Participants Reporting Study Drug Related TEAEs
Up to Day 7

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant.

Part 2: FE Cohort 7: Percentage of Participants Reporting TEAEs by Severity
Up to Day 7

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant. The intensity for each AE reported during the study were assigned to 1 of 5 categories: Grade 1 Mild symptoms, causing no or minimal interference with usual social and functional activities with intervention not indicated; Grade 2 Moderate symptoms, causing greater than minimal interference with usual social and functional activities with intervention indicated; Grade 3 Severe symptoms, causing inability to perform usual social and functional activities with intervention or hospitalization indicated; Grade 4 Potentially life-threatening symptoms, causing inability to perform basic self-care functions with intervention indicated to prevent permanent impairment, persistent disability, or death and Grade 5: Fatal.

Part 2: MAD Cohorts: Percentage of Participants Reporting TEAEs, SAEs, and AESIs
Day 1 through Day 36.

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant. A SAE is defined as any untoward medical occurrence that, at any dose: results in death or is life-threatening or requires inpatient hospitalization or prolongation of existing hospitalization or results in persistent disability/incapacity or is a congenital anomaly/birth defect or is a medically significant / important event or reaction. AESIs are adverse events that the Sponsor monitored carefully and were subject to expedited reporting to the Sponsor.

Part 2: MAD Cohorts: Percentage of Participants Reporting TEAEs by Severity
Day 1 through Day 36.

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant. The intensity for each AE reported during the study were assigned to 1 of 5 categories: Grade 1 Mild symptoms, causing no or minimal interference with usual social and functional activities with intervention not indicated; Grade 2 Moderate symptoms, causing greater than minimal interference with usual social and functional activities with intervention indicated; Grade 3 Severe symptoms, causing inability to perform usual social and functional activities with intervention or hospitalization indicated; Grade 4 Potentially life-threatening symptoms, causing inability to perform basic self-care functions with intervention indicated to prevent permanent impairment, persistent disability, or death and Grade 5: Fatal.

Part 2: MAD Cohorts: Proportion of Participants Reporting Study Drug Related TEAEs
Day 1 through Day 36

An AE is any untoward medical occurrence in a clinical study participant whether or not considered related to the study intervention. A TEAE is any AE that occurs after receipt of one or more doses of study drug through the end of study for that participant.

Part 1: Number of Participants With Clinically Significant Changes in Hematology Parameters
Up to Day 7

Blood samples were collected for the analysis of hematology parameters: complete blood count (red blood cells, hemoglobin, platelets, and white blood cells \[WBC\]); red blood cell parameters (eg, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and red cell distribution width); white blood cell differential (absolute counts), including neutrophils, lymphocytes, monocytes, eosinophils and basophils; and reticulocyte count

Part 1: Number of Participants With Clinically Significant Changes in Chemistry Parameters
Up to Day 7

Blood samples were collected for the analysis of chemistry parameters: alanine transaminase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total and direct bilirubin, creatinine, blood urea nitrogen (BUN) or urea, creatine kinase, sodium, potassium, bicarbonate or CO2, chloride, glucose, and lipid profile (total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, and triglycerides.

Part 1: Number of Participants With Clinically Significant Changes in Serum Coagulation Parameters
Up to Day 7

Blood samples were collected for the analysis of Serum coagulation parameters: Prothrombin Time (PT), Partial Thromboplastin Time (PTT), and international normalized ratio (INR).

Part 1: Number of Participants With Clinically Significant Changes in Urinalysis
Up to Day 7

Urine samples were collected for the analysis of urinalysis parameters: Dipstick for potential of hydrogen (pH), specific gravity, glucose, protein, blood, leukocyte esterase, nitrites, ketones, bilirubin, and urobilinogen. Microscopic examination for red blood cells, white blood cells, casts, and bacteria was performed if urine dipstick is positive for protein, blood, leukocyte esterase, or nitrites.

Part 1: Number of Participants With Clinically Significant Changes in Vital Parameters
Up to Day 7

Vital parameters including temperature, heart rate (HR), and blood pressure (BP) were measured in supine position. Data for number of participants with abnormal clinically significant changes for vital signs have been presented.

Part 1: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters
Up to Day 7

ECG parameters included HR, RR interval, PR interval, QRS duration, QT interval, and QT interval corrected by Fridericia's formula (QTcF).

Part 2: FE Cohort 7: Number of Participants With Clinically Significant Changes in Hematology Parameters
Up to Day 8

Blood samples were collected for the analysis of hematology parameters: complete blood count (red blood cells, hemoglobin, platelets, and WBC); red blood cell parameters (eg, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and red cell distribution width); white blood cell differential (absolute counts), including neutrophils, lymphocytes, monocytes, eosinophils and basophils; and reticulocyte count.

Part 2: MAD Cohorts: Number of Participants With Clinically Significant Changes in Hematology Parameters
Up to Day 36

Blood samples were collected for the analysis of hematology parameters: complete blood count (red blood cells, hemoglobin, platelets, and WBC); red blood cell parameters (eg, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and red cell distribution width); white blood cell differential (absolute counts), including neutrophils, lymphocytes, monocytes, eosinophils and basophils; and reticulocyte count

Part 2: FE Cohort 7: Number of Participants With Clinically Significant Changes in Chemistry Parameters
Up to Day 8

Blood samples were collected for the analysis of chemistry parameters: ALT, AST, ALP, total and direct bilirubin, creatinine, BUN or urea, creatine kinase, sodium, potassium, bicarbonate or CO2, chloride, glucose, and lipid profile (total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides).

Part 2: MAD Cohorts: Number of Participants With Clinically Significant Changes in Chemistry Parameters
Up to Day 36

Participants were randomized to receive MK-7762 100 mg in a fed or fasted state.

Part 2: FE Cohort 7: Number of Participants With Clinically Significant Changes in Serum Coagulation Parameters
Up to Day 8

Blood samples were collected for the analysis of Serum coagulation parameters: PT, PTT, and INR.

Part 2: FE Cohort 7: Number of Participants With Clinically Significant Changes in Urinalysis
Up to Day 8

Urine samples were collected for the analysis of urinalysis parameters: Dipstick for pH, specific gravity, glucose, protein, blood, leukocyte esterase, nitrites, ketones, bilirubin, and urobilinogen. Microscopic examination for red blood cells, white blood cells, casts, and bacteria was performed if urine dipstick is positive for protein, blood, leukocyte esterase, or nitrites.

Part 2: MAD Cohorts: Number of Participants With Clinically Significant Changes in Serum Coagulation Parameters
Up to Day 36

Blood samples were collected for the analysis of Serum coagulation parameters: PT, PTT, and INR.

Part 2: MAD Cohorts: Number of Participants With Clinically Significant Changes in Urinalysis
Up to Day 36

Urine samples were collected for the analysis of urinalysis parameters: Dipstick for pH, specific gravity, glucose, protein, blood, leukocyte esterase, nitrites, ketones, bilirubin, and urobilinogen. Microscopic examination for red blood cells, white blood cells, casts, and bacteria was performed if urine dipstick is positive for protein, blood, leukocyte esterase, or nitrites

Part 2: FE Cohort 7: Number of Participants With Clinically Significant Changes in Vital Parameters
Up to Day 8

Vital parameters including temperature, HR, and BP were measured in supine position. Data for number of participants with abnormal clinically significant changes for vital signs have been presented.

Part 2: MAD Cohorts: Number of Participants With Clinically Significant Changes in Vital Parameters
Up to Day 36

Vital parameters including temperature, HR, and BP were measured in supine position. Data for number of participants with abnormal clinically significant changes for vital signs have been presented.

Part 2: FE Cohort 7: Number of Participants With Clinically Significant Changes in ECG Parameters
Up to Day 8

ECG parameters included HR, RR interval, PR interval, QRS duration, QT interval, and QTcF.

Part 2: MAD Cohorts: Number of Participants With Clinically Significant Changes in ECG Parameters
Up to Day 36

ECG parameters included HR, RR interval, PR interval, QRS duration, QT interval, and QTcF.

Secondary Endpoints

Part 1: Maximum Plasma Drug Concentration (Cmax) of MK-7762
Day 1: Pre-dose and at 1, 2, 3, 4, 5, 6, 8, and 12 hours post-dose and 24 and 36 hours post-dose (Day 2); Day 3: 48 hours post-dose; Day 4: 72 hours post-dose; Day 7: Within ±1-hour time window of time of study drug administration on Day 1
Part 1: Time to Maximum Plasma Drug Concentration (Tmax) of MK-7762
Day 1: Pre-dose and at 1, 2, 3, 4, 5, 6, 8, and 12 hours post-dose and 24 and 36 hours post-dose (Day 2); Day 3: 48 hours post-dose; Day 4: 72 hours post-dose; Day 7: Within ±1-hour time window of time of study drug administration on Day 1
Part 1: Area Under the Concentration-time Curve (AUC) Calculated to Last Quantifiable Observed Sample (AUClast) of MK-7762
Day 1: Pre-dose and at 1, 2, 3, 4, 5, 6, 8, and 12 hours post-dose and 24 and 36 hours post-dose (Day 2); Day 3: 48 hours post-dose; Day 4: 72 hours post-dose; Day 7: Within ±1-hour time window of time of study drug administration on Day 1
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
MK-7762 (TBD09)EXPERIMENTALIn Part 1 of the trial (SAD/FE), up to five sequential cohorts will be enrolled to evaluate up to five escalating single doses of MK-7762; 8 participants in each cohort will be randomized (3:1) to receive MK-7762 or placebo. A sixth cohort will evaluate the effect of food on PK of single doses of MK-7762 utilizing an open-label, two-period design in 8 participants.
PlaceboPLACEBO_COMPARATORParticipants will receive placebos matched to MK-7762 (TBD09).

Interventions

NameTypeDescription
MK-7762 (TBD09)DRUGCohort 1: 50 mg Cohort 2: 150 mg Cohort 3: 300 mg Cohort 4: 600 mg Cohort 5: TBD Cohort 6: TBD
PlaceboOTHERA subset of participants from each of the 6 dosing cohorts will receive placebo.
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Eligibility Criteria

Age Range19 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: To be included in this trial, an individual must satisfy all the following criteria: 1. Is ≥ 19 to ≤ 55 years of age. 2. Is healthy as determined by the Investigator via medical history and clinical examination before enrollment in the trial. 3. Can understand and comply with t...

Countries:United States
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Competitive Landscape -Tuberculosis 7 trials

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Recent Changes (Last 90 Days)

MEDIUMJul 5, 2026NCT05824091TRIAL_REMOVED: changed
MEDIUMJul 5, 2026NCT05824091TRIAL_REMOVED: changed
MEDIUMJul 5, 2026NCT05824091TRIAL_REMOVED: changed

Frequently asked questions about MK-7762

What is MK-7762 used for?

MK-7762 is an investigational small molecule being developed for tuberculosis. It is currently in Phase 1 clinical development and is not approved by the FDA. The drug is being studied for its safety, tolerability, pharmacokinetics, and food effect in healthy adults.

Who makes MK-7762?

MK-7762 is being developed by Merck & Company, Inc., which trades on the New York Stock Exchange under the ticker MRK. The company is conducting clinical trials to evaluate the drug's safety and pharmacokinetics in healthy adults.

What phase is MK-7762 in?

MK-7762 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA. The Phase 1 trial has been completed, and the drug remains in early-stage clinical development for tuberculosis.

What clinical trials is MK-7762 in?

MK-7762 has one completed Phase 1 clinical trial, identified as NCT05824091. This trial evaluated the safety, tolerability, pharmacokinetics, and food effect of MK-7762 in healthy adults in the United States. The trial enrolled 119 participants and was randomized, double-blind, and placebo-controlled.

Is MK-7762 the same as any other drug?

MK-7762 is not known to have any alternative names. It is a distinct investigational small molecule being developed by Merck & Company, Inc. for tuberculosis. No other names for this drug have been reported.