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Embibatinib

Phase 1

Undisclosed | Small molecule | Other |Merck & Company, Inc.|Trials Updated: Oct 22, 2026

Embibatinib development status

Highest phase Phase 1
Registered trials 2 across 1 sponsor since Dec 2023

Embibatinib target and mechanism

Target class-Tinib (Kinase)
ModalitySmall molecule

Also known as MK-4208, HS-10382

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment196

FDA Designations

No designations recorded

Embibatinib clinical trials

Embibatinib · 1 trial · 1 indication

Phase 1 1
NCT07838987A Clinical Trial to Evaluate MK-4208/Embibatinib in Healthy Adult Participants (MK-4208-001/Embibatinib-1014)Healthy
COMPLETED196 Analytics
PHASE1COMPLETED
A Clinical Trial to Evaluate MK-4208/Embibatinib in Healthy Adult Participants (MK-4208-001/Embibatinib-1014)
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Study Endpoints

Primary Endpoints

Number of Participants Who Experience a Treatment Emergent Adverse Event (AE)
Up to approximately 102 days

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. The number of participants who experience a treatment emergent AE will be reported.

Number of Participants Who Discontinue Study Treatment Due to an AE
Up to approximately 102 days

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. The number of participants who discontinue study treatment due to an AE will be reported.

Number of Participants with Clinically Significant Abnormalities in Systolic Blood Pressure
up to approximately 102 days

Blood pressure will be measured after the participant has been at rest in a supine position for at least 10 minutes. Blood pressure and pulse measurements will be assessed with a completely automated device; manual techniques will be used only if an automated device is not available. Blood pressure measurements will be carried out before blood sample collections or at least 30 minutes after any blood draws.

Number of Participants with Clinically Significant Abnormalities in Diastolic Blood Pressure
up to approximately 102 days

Blood pressure will be measured after the participant has been at rest in a supine position for at least 10 minutes. Blood pressure and pulse measurements will be assessed with a completely automated device; manual techniques will be used only if an automated device is not available. Blood pressure measurements will be carried out before blood sample collections or at least 30 minutes after any blood draws.

Number of Participants with Abnormal Clinical Hematology Test Results Reported as Adverse Events
up to approximately 102 days

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. The number of participants with abnormal hematology-related AEs will be reported.

Number of Participants with Abnormal Clinical Chemistry Test Results Reported as Adverse Events
up to approximately 102 days

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. The number of participants with abnormal chemistry-related AEs will be reported.

Number of Participants with Abnormal Urinalysis Results Reported as Adverse Events
up to approximately 102 days

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. The number of participants with abnormal urinalysis-related AEs will be reported.

Number of Participants with Clinically Significant Abnormalities in 12-Lead (ECG) Findings
up to approximately 102 days

During the 12-lead ECG collection participants will be instructed to lie supine for at least 10 minutes prior to ECG collection. During the collection, participants should be in a quiet setting, without distractions, and should refrain from talking or moving their arms or legs. All ECG acquisitions will be carried out before any blood sample collections or at least 30 minutes after any blood draws.

Area Under the Concentration versus Time Curve from Time 0 to the Last Quantifiable Concentration (AUC0-last) of Embibatinib in Plasma
Pre-dose and at designated time points up to 96 hours post dose

Blood samples will be collected to determine the AUC0-Last of Embibatinib.

Area Under the Concentration versus Time Curve Extrapolated to Infinite Time (AUC0-Inf) of Embibatinib in Plasma
Pre-dose and at designated time points up to 96 hours post dose

Blood samples will be collected to determine the AUC0-inf of Embibatinib.

Area Under the Concentration versus Time Curve Over the Dosing Interval (AUCtau) of Embibatinib in Plasma
Pre-dose and at designated time points up to 24 hours post dose

Blood samples will be collected to determine the AUCtau of Embibatinib.

Maximum Observed Concentration of Drug (Cmax) of Embibatinib in Plasma
Pre-dose and at designated time points up to 96 hours post dose

Blood samples will be collected to determine the Cmax of Embibatinib.

Apparent Terminal Elimination Half-Life (t1/2) of Embibatinib in Plasma
Pre-dose and at designated time points up to 96 hours post dose

Blood samples will be collected to determine the t1/2 of Embibatinib.

Time of Maximum Observed Concentration of Drug (Tmax) of Embibatinib in Plasma
Pre-dose and at designated time points up to 96 hours post dose

Blood samples will be collected to determine the Tmax of Embibatinib.

Secondary Endpoints

AUC0-last of Embibatinib in Plasma Under Fed Versus Fasted Conditions
Pre-dose and at designated time points up to 96 hours post dose
AUC0-Inf of Embibatinib in Plasma Under Fed Versus Fasted Conditions
Pre-dose and at designated time points up to 96 hours post dose
Cmax of Embibatinib in Plasma Under Fed Versus Fasted Conditions
Pre-dose and at designated time points up to 96 hours post dose
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Cohort 1: Single Ascending Dose (SAD) Escalation of Embibatinib Dose Level 1EXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 1 under fasted conditions on Day 1.
Cohort 2: SAD Escalation of Embibatinib Dose Level 2EXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 2 under fasted conditions on Day 1.
Cohort 3: SAD Escalation of Embibatinib Dose Level 3 and Food EffectEXPERIMENTALOn Period 1 Day 1, participants receive a single oral dose of Embibatinib Dose Level 3 under fasted conditions. On Period 2 Day 1, participants receive Embibatinib Dose Level 3 after a high-fat meal.
Cohort 4: SAD Escalation of Embibatinib Dose Level 4EXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 4 under fasted conditions on Day 1.
Cohort 5: SAD Escalation of Embibatinib Dose Level 5EXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 5 under fasted conditions on Day 1.
Cohort 6: SAD Escalation of Embibatinib Dose Level 7EXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 7 under fasted conditions on Day 1.
Cohort 7: Embibatinib Formulations with Rabeprazole 20 mgEXPERIMENTALParticipants in Cohort 7 are randomized to receive Embibatinib Formulation 1 or Formulation 2 at Dose Level 5 on Day 1. On Day 7, participants receive Embibatinib Formulation 2 or Formulation 1 at Dose Level 5. Participants also receive Rabeprazole 20 mg once daily on Days 10-13. On Day 14, participants will co-administer a single oral dose of Rabeprazole 20 mg with Embibatinib Formulation 1 Dose Level 5 at the same time. All participants receive treatment under fasted conditions.
Cohort 8: Embibatinib + Probe Substrate Cocktail-1EXPERIMENTALPer protocol, the probe substrate cocktail-1 consists of midazolam 2 mg, digoxin 0.25 mg, pravastatin 40 mg, montelukast 10 mg, and omeprazole 40 mg. On Day 1, participants receive a single oral dose of the probe substrate cocktail-1 under fasted conditions. On Day 5, participants receive a single oral dose of Embibatinib Dose Level 4 co-administered with a single oral dose of the probe substrate cocktail-1 taken at the same time under fasted conditions. On Day 9, participants receive a single oral dose of Embibatinib Dose Level 7 co-administered with a single oral dose of the probe substrate cocktail-1 taken at the same time under fasted conditions.
Cohort 9: Embibatinib Dose Level 5 + Rabeprazole 20 mgEXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 5 on Day 1 under fasted conditions. On Days 4-7 participants will receive Rabeprazole 20 mg once daily under fasted conditions. On Day 8, under fasted conditions, participants co-administer a single oral dose of Embibatinib Dose Level 5 with a single oral dose of Rabeprazole 20 mg taken at the same time under fasted conditions.
Cohort 10: SAD Escalation of Embibatinib Dose Level 8EXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 8 under fasted conditions on Day 1.
Cohort 11: SAD Escalation of Embibatinib Dose Level 9EXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 9 under fasted conditions on Day 1.
Cohort 12: Embibatinib Dose Level 3 + Itraconazole 200 mgEXPERIMENTALParticipants receive a single oral dose of Embibatinib at Dose Level 3 under nonfasted conditions on Day 1. On Day 8, participants will receive Itraconazole 200 mg twice daily after a standardized breakfast and evening snack. On Days 9-11, participants will take a single oral dose of Itraconazole 200 mg after a standardized meal. On Day 12, participants will take a single dose of Itraconazole 200mg after a standardized meal followed by Embibatinib Dose Level 3 taken an hour later. Participants will continue taking a single oral dose of Itraconazole 200 mg once daily after a standardized meal on Days 13-15.
Cohort 13: Multiple Ascending Dose (MAD) Escalation of Embibatinib Dose Level 4EXPERIMENTALParticipants receive an oral dose of Embibatinib Dose Level 4 once daily from Day 1 to Day 13 under fasted conditions.
Cohort 14: Embibatinib Dose Level 5 + Probe Substrate Cocktail-2EXPERIMENTALPer protocol, the probe substrate cocktail-2 consists of midazolam 2 mg, warfarin 5 mg, and rosuvastatin 10 mg. Participants receive a single oral dose of the Probe Substrate Cocktail-2 on Day 1 under fasted conditions. On Days 9-15, participants receive a single oral dose of Embibatinib Dose Level 5 once daily under fasted conditions. On Day 16, participants receive a single oral dose of the Probe Substrate Cocktail-2 co-administered with Embibatinib Dose Level 5 taken at the same time under fasted conditions. On Days 17-21 participants receive Embibatinib Dose Level 5 as a single oral dose once daily under fasted conditions.
Cohort 15: Embibatinib Dose Level 8 + Probe Substrate Cocktail-2EXPERIMENTALPer protocol, the probe substrate cocktail-2 consists of midazolam 2 mg, warfarin 5 mg, and rosuvastatin 10 mg. Participants receive a single oral dose of the Probe Substrate Cocktail-2 on Day 1 under fasted conditions. On Days 9-15, participants receive a single oral dose of Embibatinib Dose Level 8 once daily under fasted conditions. On Day 16, participants receive a single oral dose of the Probe Substrate Cocktail-2 co-administered with Embibatinib Dose Level 8 taken at the same time under fasted conditions. On Days 17-21 participants receive Embibatinib Dose Level 8 as a single oral dose once daily under fasted conditions.
Cohort 16: Food Effect on Embibatinib Dose Level 8 Formulations with Rabeprazole 20 mgEXPERIMENTALOn Period 1 Day 1, participants receive a single oral dose of Embibatinib Formulation 3 Dose Level 8 (DL8). On Period 1 Day 7, participants receive a single oral dose of Embibatinib Formulation 4 DL8. On Period 1 Day 13, participants receive a single oral dose of Embibatinib Formulation 5 DL8. On Period 1 Day 19, participants receive a single oral dose of Embibatinib Formulation 6 DL8. All Period 1 treatments are administered under fasted conditions. Per protocol, following Period 1, one formulation is selected for Period 2. On Period 2 Day 1, participants receive a single oral dose of the selected Embibatinib formulation DL8 after a high-fat meal. On Period 2 Days 7-10, participants receive rabeprazole 20 mg once daily under fasted conditions. On Period 2 Day 11, participants receive the selected formulation of Embibatinib DL8 as a single oral dose, co-administered with the single oral dose of Rabeprazole 20 mg taken at the same time under fasted conditions.
Cohort 17: Food Effect on Embibatinib Dose Level 8 Selected Formulation with Rabeprazole 20 mgEXPERIMENTALPer protocol, a formulation from Cohort 16 Period 1, different from the formulation selected for Cohort 16 Period 2, may be selected to evaluate the effects of food and rabeprazole 20 mg. On Day 1, participants receive a single oral dose of the selected formulation of Embibatinib Dose Level 8 under fasted conditions. On Day 7, participants receive a single oral dose of the selected formulation of Embibatinib Dose Level 8 after a high-fat meal. On Days 13-16, participants receive a single oral dose of rabeprazole 20 mg once daily. On Day 17, participants receive a single oral dose of the selected formulation of Embibatinib Dose Level 8 co-administered with a single oral dose of rabeprazole 20 mg taken at the same time under fasted conditions.
Cohort 18: Embibatinib Dose Level 8 + Bosentan 125 mgEXPERIMENTALOn Day 1, participants receive a single oral dose of Embibatinib Dose Level 8 under fasted conditions. Beginning on Day 8, participants receive an oral dose of Bosentan 125 mg twice daily. On Day 15, participants receive Embibatinib Dose Level 8 as a single oral dose co-administered with the morning dose of Bosentan 125 mg taken at the same time under fasted conditions; participants then receive the second daily dose of Bosentan 125 mg in the evening. Participants continue taking Bosentan 125 mg twice daily on Days 16-18.
Cohort 19: Embibatinib Dose Level 6 + Quinidine 300 mgEXPERIMENTALParticipants receive a single oral dose of Embibatinib Dose Level 6 on Day 1 under fasted conditions. Beginning on Day 6, participants receive an oral dose of Quinidine 300 mg three times daily. On Day 8, participants receive Embibatinib Dose Level 6 as a single oral dose co-administered with the morning final dose of Quinidine 300 mg taken at the same time under fasted conditions.

Interventions

NameTypeDescription
EmbibatinibDRUGOral Tablet
RabeprazoleDRUGThe United States commercially marketed 20 mg oral tablet formulation is being used in this trial.
MidazolamDRUG2 mg oral syrup formulation administered as part of the probe substrate cocktail-1 and probe substrate cocktail-2. The United States commercially marketed formulation is being used in this trial.
DigoxinDRUG0.25 mg oral tablet formulation administered as part of the probe substrate cocktail-1. The United States commercially marketed formulation is being used in this trial.
PravastatinDRUG40 mg oral tablet formulation administered as part of the probe substrate cocktail-1. The United States commercially marketed formulation is being used in this trial.
MontelukastDRUG10 mg oral tablet formulation administered as part of the probe substrate cocktail-1. The United States commercially marketed formulation is being used in this trial.
OmeprazoleDRUG40 mg oral tablet formulation administered as part of the probe substrate cocktail-1. The United States commercially marketed formulation is being used in this trial.
ItraconazoleDRUGThe United States commercially marketed 200 mg oral capsule formulation is being used in this trial.
WarfarinDRUG5 mg oral tablet formulation administered as part of the probe substrate cocktail-2. The United States commercially marketed formulation is being used in this trial.
RosuvastatinDRUG10 mg oral tablet formulation administered as part of the probe substrate cocktail-2. The United States commercially marketed formulation is being used in this trial.
BosentanDRUGThe Europe commercially marketed 125 mg oral tablet formulation is being used in this trial.
QuinidineDRUGThe United States commercially marketed 300 mg oral tablet formulation is being used in this trial.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Has body weight ≥48 kg (105.6 lbs) and body mass index within the range of 18.5 to 32 kg/m\^2 (inclusive) * Is in good health Exclusion Criteria: The main exclusion criteria include but are not limite...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMOct 25, 2026NCT07838987TRIAL_REMOVED: changed
MEDIUMOct 25, 2026NCT07838987TRIAL_REMOVED: changed
MEDIUMOct 25, 2026NCT07838987TRIAL_REMOVED: changed