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Evobrutinib

Phase 1

Healthy | Small molecule | Other |Merck & Company, Inc.|Last Updated: Dec 5, 2025

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment40

FDA Designations

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Clinical trial landscape

Evobrutinib · 1 trial · 1 indication

Phase 1 1
NCT05064488Drug-Drug Interaction Study of Evobrutinib and Transporter SubstratesHealthy
COMPLETED40 Analytics
PHASE1COMPLETED
Drug-Drug Interaction Study of Evobrutinib and Transporter Substrates
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Study Endpoints

Primary Endpoints

Part 1: Area Under the Plasma Concentration-Time Curve From Time Zero Extrapolated to Infinity (AUC0-inf) of Digoxin
Pre-dose, 0.33, 0.67, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 16 hours post-dose on Days 1 and 10

The AUC from time zero (= dosing time) extrapolated to infinity, based on the predicted value for the concentration at tlast, as estimated using the linear regression from lambda z determination: AUC0-inf= AUC0-tlast + Clast pred/lambda z, where AUC0-tlast was the AUC from time zero (= dosing time) to the last sampling time (tlast) at which the concentration is at or above the lower limit of quantification. Calculated using the mixed log-linear trapezoidal rule (linear up, log down); Clast pred was defined as the predicted concentration at the last sampling time, calculated from the log-linear regression line for lambda z determination and Lambda z was the apparent terminal rate constant. The transporter cocktail included digoxin, metformin, and rosuvastatin. As pre-specified in protocol, data was analyzed and reported to characterize the effect of evobrutinib on digoxin in this outcome measure.

Part 1: Area Under the Plasma Concentration-Time Curve From Time Zero Extrapolated to Infinity (AUC0-inf) of Metformin
Pre-dose, 0.33, 0.67, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 16 hours post-dose on Days 1 and 10

The AUC from time zero (= dosing time) extrapolated to infinity, based on the predicted value for the concentration at tlast, as estimated using the linear regression from lambda z determination: AUC0-inf= AUC0-tlast + Clast pred/lambda z, where AUC0-tlast was the AUC from time zero (= dosing time) to the last sampling time (tlast) at which the concentration is at or above the lower limit of quantification. Calculated using the mixed log-linear trapezoidal rule (linear up, log down); Clast pred was defined as the predicted concentration at the last sampling time, calculated from the log-linear regression line for lambda z determination and Lambda z was the apparent terminal rate constant. The transporter cocktail included digoxin, metformin, and rosuvastatin. As pre-specified in protocol, data was analyzed and reported to characterize the effect of evobrutinib on metformin in this outcome measure.

Part 1: Area Under the Plasma Concentration-Time Curve From Time Zero Extrapolated to Infinity (AUC0-inf) of Rosuvastatin
Pre-dose, 0.33, 0.67, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 16 hours post-dose on Days 1 and 10

The AUC from time zero (= dosing time) extrapolated to infinity, based on the predicted value for the concentration at tlast, as estimated using the linear regression from lambda z determination: AUC0-inf= AUC0-tlast + Clast pred/lambda z, where AUC0-tlast was the AUC from time zero (= dosing time) to the last sampling time (tlast) at which the concentration is at or above the lower limit of quantification. Calculated using the mixed log-linear trapezoidal rule (linear up, log down); Clast pred was defined as the predicted concentration at the last sampling time, calculated from the log-linear regression line for lambda z determination and Lambda z was the apparent terminal rate constant. The transporter cocktail included digoxin, metformin, and rosuvastatin. As pre-specified in protocol, data was analyzed and reported to characterize the effect of evobrutinib on rosuvastatin in this outcome measure.

Part 2: Area Under the Plasma Concentration-Time Curve From Time Zero Extrapolated to Infinity (AUC0-inf) of Sumatriptan
Pre-dose, 0.33, 0.67, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 16 hours post-dose on Days 1 and 8

The AUC from time zero (= dosing time) extrapolated to infinity, based on the predicted value for the concentration at tlast, as estimated using the linear regression from lambda z determination: AUC0-inf= AUC0-tlast + Clast pred/lambda z, where AUC0-tlast was the AUC from time zero (= dosing time) to the last sampling time (tlast) at which the concentration is at or above the lower limit of quantification. Calculated using the mixed log-linear trapezoidal rule (linear up, log down); Clast pred was defined as the predicted concentration at the last sampling time, calculated from the log-linear regression line for lambda z determination and Lambda z was the apparent terminal rate constant. As pre-specified in protocol, data was analyzed and reported to characterize the effect of evobrutinib on sumatriptan in this outcome measure.

Part 1: Maximum Observed Plasma Concentration (Cmax) of Digoxin
Pre-dose, 0.33, 0.67, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 16 hours post-dose on Days 1 and 10

Cmax was obtained directly from the concentration versus time curve. The transporter cocktail included digoxin, metformin, and rosuvastatin. As pre-specified in protocol, data was analyzed and reported to characterize the effect of evobrutinib on digoxin in this outcome measure.

Part 1: Maximum Observed Plasma Concentration (Cmax) of Metformin
Pre-dose, 0.33, 0.67, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 16 hours post-dose on Days 1 and 10

Cmax was obtained directly from the concentration versus time curve. The transporter cocktail included digoxin, metformin, and rosuvastatin. As pre-specified in protocol, data was analyzed and reported to characterize the effect of evobrutinib on metformin in this outcome measure.

Part 1: Maximum Observed Plasma Concentration (Cmax) of Rosuvastatin
Pre-dose, 0.33, 0.67, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 16 hours post-dose on Days 1 and 10

Cmax was obtained directly from the concentration versus time curve. The transporter cocktail included digoxin, metformin, and rosuvastatin. As pre-specified in protocol, data was analyzed and reported to characterize the effect of evobrutinib on rosuvastatin in this outcome measure.

Part 2: Maximum Observed Plasma Concentration (Cmax) of Sumatriptan
Pre-dose, 0.33, 0.67, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 16 hours post-dose on Days 1 and 8

Cmax was obtained directly from the concentration versus time curve. As pre-specified in protocol, data was analyzed and reported to characterize the effect of evobrutinib on sumatriptan in this outcome measure.

Secondary Endpoints

Part 1 and Part 2: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious TEAEs
Part 1: Cocktail Alone - Day 1 to Day 3; Evobrutinib Alone - Day 4 to Day 9; Evobrutinib + Cocktail - Day 10 to Day 12; Part 2: Sumatriptan Alone - Day 1; Evobrutinib Alone - Day 2 to Day 7; Evobrutinib + Sumatriptan - Day 8
Part 1 and Part 2: Number of Participants With Treatment Emergent Adverse Events (TEAEs) by Severity
Part 1: Cocktail Alone - Day 1 to Day 3; Evobrutinib Alone - Day 4 to Day 9; Evobrutinib + Cocktail - Day 10 to Day 12; Part 2: Sumatriptan Alone - Day 1; Evobrutinib Alone - Day 2 to Day 7; Evobrutinib + Sumatriptan - Day 8
Part 1 and Part 2: Number of Participants With Clinically Relevant Changes From Baseline in Laboratory Parameters
Part 1: Cocktail Alone - Day 1 to Day 3; Evobrutinib Alone - Day 4 to Day 9; Evobrutinib + Cocktail - Day 10 to Day 12; Part 2: Sumatriptan Alone - Day 1; Evobrutinib Alone - Day 2 to Day 7; Evobrutinib + Sumatriptan - Day 8
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1: Cocktail (Day 1)EXPERIMENTALParticipants received single oral dose of Cocktail (digoxin 0.25 mg tablet, metformin 10 mg solution, rosuvastatin 10 mg tablet) on Day 1 in Part 1 under fed conditions.
Part 1: Evobrutinib (Days 4 to 12)EXPERIMENTALParticipants received Evobrutinib film-coated tablets, at a dose of 45 mg, orally, twice a day on Days 4 to 12 in Part 1 under fed conditions.
Part 1: Evobrutinib + Cocktail (Day 10)EXPERIMENTALParticipants received Evobrutinib film-coated tablets, at a dose of 45 mg, orally, twice a day and cocktail (digoxin 0.25 mg tablet, metformin 10 mg solution, rosuvastatin 10 mg tablet) on Day 10 in Part 1 under fed conditions.
Part 2: Sumatriptan (Day 1)EXPERIMENTALParticipants received single oral dose of Sumatriptan 25 mg tablet on Day 1 in Part 2 under fed conditions.
Part 2: Evobrutinib (Days 2 to 8)EXPERIMENTALParticipants received Evobrutinib film-coated tablets, at a dose of 45 mg, orally, twice a day on Days 2 to 8 in Part 2 under fed conditions.
Part 2: Evobrutinib + Sumatriptan (Day 8)EXPERIMENTALParticipants received Evobrutinib film-coated tablets, at a dose of 45 mg, orally, twice a day and single oral dose of Sumatriptan 25 mg tablet on Day 8 in Part 2 under fed conditions.

Interventions

NameTypeDescription
Evobrutinib (45mg)DRUGParticipants received film-coated Evobrutinib tablet at a dose of 45 milligrams (mg), orally twice daily on Days 4 to 12 in Part 1 and Days 2 to 8 in Part 2 under fed conditions.
Digoxin (0.25mg)DRUGParticipants received single oral dose of digoxin tablet (0.25 mg) on Day 1 and Day 10 in Part 1 under fed conditions.
Metformin (10mg)DRUGParticipants received single oral dose of metformin 10 mg solution on Day 1 and Day 10 in Part 1 under fed conditions.
Rosuvastatin (10mg)DRUGParticipants received single oral dose of rosuvastatin tablet (10 mg) on Day 1 and Day 10 in Part 1 under fed conditions.
Sumatriptan (25mg)DRUGParticipants received single dose of sumatriptan tablet (25 mg) on Day 1 and Day 8 in Part 2 under fed conditions.
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Participants were overtly healthy as determined by medical evaluation, including no clinically significant abnormality identified on physical examination or laboratory evaluation and no active clinically significant disorder, condition, infection or disease that would pose a r...

Countries:Germany
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Frequently asked questions about Evobrutinib

What is Evobrutinib?

Evobrutinib is a small molecule drug being developed by Merck & Company, Inc. (MRK). It is currently in Phase 1 clinical development. The drug has been studied in a completed clinical trial involving healthy volunteers.

What is Evobrutinib used for?

Evobrutinib has been studied in healthy volunteers as part of a drug-drug interaction study. The trial was designed to investigate the interaction between Evobrutinib and transporter substrates. The drug is not approved for any disease indication.

Who makes Evobrutinib?

Evobrutinib is being developed by Merck & Company, Inc., which trades on the stock exchange under the ticker MRK. The company is conducting clinical research on this small molecule drug candidate.

What phase is Evobrutinib in?

Evobrutinib is in Phase 1 clinical development. One Phase 1 trial has been completed, and no trials are currently active. The drug remains investigational and has not been approved by regulatory authorities.

What clinical trials is Evobrutinib in?

Evobrutinib has one completed clinical trial registered as NCT05064488. The trial was titled "Drug-Drug Interaction Study of Evobrutinib and Transporter Substrates" and enrolled 40 healthy participants in Germany. The study was controlled but not randomized or double-blinded.