- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01181310
Placebo-Controlled Crossover Study to Evaluate Donepezil and MK-3134 for Reversal of Cognitive Impairment Associated With Scopolamine Administration (3134-005)(COMPLETED)
November 5, 2015 updated by: Merck Sharp & Dohme LLC
A Five-Period, Placebo-Controlled, Crossover Study to Evaluate the Effect of Donepezil and MK-3134 on Reversal of Cognitive Impairment Associated With a Single-Dose of Scopolamine.
The drug, scopolamine, can result in short-term impairments of cognitive function, attention, and memory that resemble those seen in aging and Alzheimer's disease.
This study tested the capability of both individual and combined doses of MK-3134 and the current standard treatment: donepezil (Aricept), to reverse such impairments, following a single dose of scopolamine.
Participants were evaluated after each of 5 different treatment periods (in a cross-over, double-dummy design): A: placebo to match both donepezil (oral [PO]) and MK-3134 (PO) followed by placebo scopolamine (subcutaneous [SQ]); B: placebo to match both donepezil (PO) and MK-3134 (PO), followed by scopolamine SQ; C: MK-3134 (PO) followed by scopolamine SQ; D: donepezil (PO) followed by scopolamine SQ; E: MK-3134 (PO) and donepezil (PO) followed by scopolamine SQ.
The doses of MK3134, donepezil, and scopolamine were the same over all treatment arms in which the specified drug was administered.
There were 8 total visits for each treatment period, including 5 Treatment Visits requiring 14-day intervals between visits for study-drug washout.
Participants were assessed for cognitive function before and after each treatment period during the Treatment Visits.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
- Drug: A: Placebo to match Donepezil and MK-3134 + Placebo to match Scopolamine
- Drug: B: Placebo to match Donepezil and MK-3134 + Scopolamine 0.5 mg
- Drug: C: MK-3134 25 mg + Scopolamine 0.5 mg
- Drug: D: Donepezil 10 mg + Scopolamine 0.5 mg
- Drug: E: Combo: Donepezil 10 mg + MK-3134 25 mg + Scopolamine 0.5 mg
Study Type
Interventional
Enrollment (Actual)
31
Phase
- Phase 1
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 40 years (Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
Male
Description
Participants were eligible for inclusion in the study who were:
- Male between 18 and 40 years of age.
- Non-smokers, in good health (as defined in protocol), and were willing to follow study-related procedures.
Participants were not eligible for inclusion in the study if they:
- Had a history of illness that, in the opinion of the study investigator or as specified in protocol, might confound the results of the study or posed an potential, additional risk to the participant if they were to participate in the study.
- Were taking any medication (prescription, nonprescription, vitamin supplements or herbal, illicit or legitimate) except for acetaminophen.
- Had a history of any significant head injury/trauma.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: A, B, D, E, C
Participants received treatment A, B, D, E, C for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: B, C, E, A, D
Participants received treatment B, C, E, A, D for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: C, D, A, B, E
Participants received treatment C, D, A, B, E for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: D, E, B, C, A
Participants received treatment D, E, B, C, A for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: E, A, C, D, B
Participants received treatment E, A, C, D, B for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: A, C, B, E, D
Participants received treatment A, C, B, E, D for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: B, D, C, A, E
Participants received treatment B, D, C, A, E for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: C, E, D, B, A
Participants received treatment C, E, D, B, A for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: D, A, E, C, B
Participants received treatment D, A, E, C, B for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
Experimental: E, B, A, D, C
Participants received treatment E, B, A, D, C for Periods 1, 2, 3, 4, and 5, respectively.
|
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of placebo to match scopolamine SQ.
Single doses of placebo to match both donepezil and MK-3134 PO, plus a single dose of scopolamine 0.5 mg SQ.
A single dose of MK-3134 PO 25 mg, plus a single dose of scopolamine SQ 0.5 mg.
A single dose of donepezil 10 mg PO, plus a single dose of scopolamine 0.5 mg SQ.
Other Names:
A combination of single doses of all active drugs: donepezil 10 mg and MK-3134 25 mg PO, plus scopolamine, SQ.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
CogState Early Phase Battery, Groton Maze Learning Test (GMLT) as measured by the number of errors on the GMLT over time (area under the GMLT-time curve) over hours 1-12.
Time Frame: 1, 2, 3, 4, 6, 8, and 12 hours relative to administration of SQ scopolamine or SQ placebo
|
Participants learned a hidden pathway through a maze (10 x 10 grid of tiles on a computer touch screen) using step-by-step guess, with trial and error feedback after each step.
Once the pathway was learned, participants repeated the same pathway four more times.
The number of pathway errors was used to indicate the level of cognitive function.
|
1, 2, 3, 4, 6, 8, and 12 hours relative to administration of SQ scopolamine or SQ placebo
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
June 1, 2007
Primary Completion (Actual)
October 1, 2007
Study Completion (Actual)
October 1, 2007
Study Registration Dates
First Submitted
August 12, 2010
First Submitted That Met QC Criteria
August 12, 2010
First Posted (Estimate)
August 13, 2010
Study Record Updates
Last Update Posted (Estimate)
November 6, 2015
Last Update Submitted That Met QC Criteria
November 5, 2015
Last Verified
November 1, 2015
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Mental Disorders
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Neurocognitive Disorders
- Cognition Disorders
- Dementia
- Cognitive Dysfunction
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Parasympatholytics
- Autonomic Agents
- Peripheral Nervous System Agents
- Muscarinic Antagonists
- Cholinergic Antagonists
- Cholinergic Agents
- Enzyme Inhibitors
- Antiemetics
- Gastrointestinal Agents
- Adjuvants, Anesthesia
- Nootropic Agents
- Cholinesterase Inhibitors
- Mydriatics
- Donepezil
- Scopolamine
- Butylscopolammonium Bromide
Other Study ID Numbers
- 3134-005
- 2007-001894-27 (EudraCT Number)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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