Effects Of PF-02545920 On Ketamine-Induced Abnormal Prefrontal Brain Response To Associative Learning In Healthy Subjects
NCT01244880
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- Healthy male and/or female subjects between the ages of 21 and 45 years, inclusive. Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lbs). (Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12 lead ECG and clinical laboratory tests).
- Right handed as determined by handedness questionnaire.
- Able to read and write English as a primary language.
- Female subjects who are pregnant or breastfeeding.
- Any evidence of significant psychosis-like symptoms.
- Known sensitivity to ketamine.
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Descriptive Information | ||||
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Brief Title ICMJE | Effects Of PF-02545920 On Ketamine-Induced Abnormal Prefrontal Brain Response To Associative Learning In Healthy Subjects | |||
Official Title ICMJE | Subject And Investigator-Blinded, Sponsor-Open, Randomized, Single-Dose, Placebo-Controlled, 2-Way, 4-Period Crossover Study To Assess Effects Of PF-02545920 On Ketamine-Induced Aberrant Prefrontal Response To Associative Learning In Healthy Subjects | |||
Brief Summary | To evaluate whether PF-02545920 reduces the effects of ketamine on brain activation during causal learning as measured by fMRI compared to placebo in healthy human subjects, and to evaluate whether behavioral measures of abnormal causal learning under ketamine are reduced by treatment with PF 02545920. | |||
Detailed Description | The study was terminated on November 2, 2012 due to a reassessment of the likelihood of the study meeting its scientific objectives in light of data with the investigational drug obtained from another clinical study. The decision to terminate the trial was not based on any safety concerns. | |||
Study Type ICMJE | Interventional | |||
Study Phase ICMJE | Phase 1 | |||
Study Design ICMJE | Allocation: Randomized Intervention Model: Crossover Assignment Masking: Triple (Participant, Investigator, Outcomes Assessor) Primary Purpose: Basic Science | |||
Condition ICMJE | Healthy | |||
Intervention ICMJE |
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Study Arms ICMJE |
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Publications * | Not Provided | |||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. | ||||
Recruitment Information | ||||
Recruitment Status ICMJE | Terminated | |||
Actual Enrollment ICMJE | 4 | |||
Original Estimated Enrollment ICMJE | 20 | |||
Actual Study Completion Date ICMJE | August 2012 | |||
Actual Primary Completion Date | August 2012 (Final data collection date for primary outcome measure) | |||
Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | 21 Years to 45 Years (Adult) | |||
Accepts Healthy Volunteers ICMJE | Yes | |||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | |||
Listed Location Countries ICMJE | United States | |||
Removed Location Countries | ||||
Administrative Information | ||||
NCT Number ICMJE | NCT01244880 | |||
Other Study ID Numbers ICMJE | A8241014 | |||
Has Data Monitoring Committee | No | |||
U.S. FDA-regulated Product | Not Provided | |||
IPD Sharing Statement ICMJE | Not Provided | |||
Responsible Party | Pfizer | |||
Study Sponsor ICMJE | Pfizer | |||
Collaborators ICMJE | Not Provided | |||
Investigators ICMJE |
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PRS Account | Pfizer | |||
Verification Date | March 2014 | |||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |