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MK-4334

Phase 1

Cognitive Impairment Associated With Schizophrenia | Small molecule | Psychiatry |Merck & Company, Inc.|Last Updated: Nov 29, 2024

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials1
Total Enrollment38

FDA Designations

No designations recorded

Clinical trial landscape

MK-4334 · 1 trial · 1 indication

Phase 1 1
NCT05136690Evoked Responses as Pharmacodynamic Biomarkers in Healthy and Schizophrenic Participants (MK-4334-007)Cognitive Impairment Associated With Schizophrenia
COMPLETED38 Analytics
PHASE1COMPLETED
Evoked Responses as Pharmacodynamic Biomarkers in Healthy and Schizophrenic Participants (MK-4334-007)
Cognitive Impairment Associated With SchizophreniaUnlock trial analytics

Study Endpoints

Primary Endpoints

Mean Inter-trial Coherence (ITC) Magnitude of 40 Hz-derived Auditory Steady-state Response (ASSR) in HC and SZ Participants at Baseline
Day -1 (Baseline)

The ITC magnitude derived from the 40Hz ASSR is presented. ASSR is measured following a short stream of click trains with a 500 msec inter-train interval (duration), at standard tone and at 40Hz tone. The magnitude of ITC represents the phase consistency of oscillatory activities, in response to EEG coherence at 40Hz stimulation. ITC as a unit of measure is expressed as frequency (40Hz) vs time (msec).

Secondary Endpoints

Duration Deviant Mismatch Negativity (DD-MMN) in HC and SZ Participants: MMN-A, N100-A, and P3A-A Tests
Day -1 (Baseline)
Duration Deviant Mismatch Negativity (DD-MMN) in HC and SZ Participants: MMN-L, N100-L, and P3A-L Tests
Day -1 (Baseline)
Effect of Nicotine on Mean ITC Magnitude of 40 Hz-derived ASSR in HC and SZ Participants Compared to Baseline
Day -1 (baseline), Day 1, and Day 8
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelCROSSOVER
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Panel A: Healthy Control ParticipantsEXPERIMENTALIn Part 1, HC participants receive nicotine patch + capsule placebo, and patch placebo + capsule placebo, under a cross-over design in Periods 1 and 2. In Part 2 (Period 3), HC participants are randomly assigned to receive either MK-4334 250 mg capsule + patch placebo or capsule placebo + patch placebo.
Panel B: Participants with Mild-to-Moderate SZEXPERIMENTALIn Part 1, participants with mild-to-moderate SZ receive nicotine patch + capsule placebo, and patch placebo + capsule placebo, under a cross-over design in Periods 1 and 2. In Part 2 (Period 3), SZ participants are randomly assigned to receive either MK-4334 250 mg capsule + patch placebo or capsule placebo + patch placebo.

Interventions

NameTypeDescription
Nicotine patchDRUGNicotine 21 mg transdermal nicotine patch.
MK-4334DRUGMK-4334 250 mg capsule taken by mouth.
Placebo patchDRUGPlacebo patch.
Placebo capsuleDRUGPlacebo capsule taken by mouth.
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: HC Participants: * Is in generally good health * Has no history of clinically relevant neuropsychiatric illness * Is a mild-to-moderate tobacco user of ≥1-year duration, smoking the equivalent of \~10-15 cigarettes/day Participants with Mild-to-Moderate SZ: * Has a current di...

Countries:United States
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