Study Evaluating Safety, Tolerability, Pharmacokinetics and 5 HT1A Receptor Occupancy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00499200
Recruitment Status : Completed
First Posted : July 11, 2007
Last Update Posted : July 9, 2008
Information provided by:
Wyeth is now a wholly owned subsidiary of Pfizer

Brief Summary:
The study will include a preliminary pharmacokinetics (PK) / safety / tolerability evaluation in healthy elderly subjects followed by the Receptor Occupancy (RO) evaluations in healthy elderly subjects and in Alzheimer's Disease (AD) subjects.

Condition or disease Intervention/treatment Phase
Alzheimer's Disease Drug: SRA-444 Phase 1

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 42 participants
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: A Positron Emission Tomography Study to Assess the Level and Duration of Occupancy of Serotonin-1A Receptors Produced by Single Oral Doses of SRA-444 in Healthy Elderly Subjects and in Subjects With Alzheimer Disease
Study Start Date : October 2007
Actual Primary Completion Date : June 2008
Actual Study Completion Date : June 2008

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: SRA-444 + Placebo
Experimental; Placebo
Drug: SRA-444

Primary Outcome Measures :
  1. To assess the safety and tolerability of ascending single oral doses of SRA-444 in healthy elderly subjects and subjects with Alzheimer's disease [ Time Frame: after each dose group completion ]
  2. To obtain PK profiles and determine the level and duration of 5-HT1A RO of SRA-444 by PET [ Time Frame: 1 month ]

Information from the National Library of Medicine

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Ages Eligible for Study:   60 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion criteria:

  • Men or women from 60 years of age at screening.
  • Healthy as determined by the investigator on the basis of medical history, physical examination, clinical laboratory test results, vital signs, and 12-lead electrocardiogram (ECG).

Exclusion criteria:

  • History of drug abuse within 1 year before study day 1.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00499200

Uppsala, Sweden, 753 23
Sponsors and Collaborators
Wyeth is now a wholly owned subsidiary of Pfizer
Study Director: Medical Monitor Wyeth is now a wholly owned subsidiary of Pfizer
Principal Investigator: Trial Manager For Sweden:

Responsible Party: Wyeth (Registry Contact: Clinical Trial Registry Specialist), Wyeth Identifier: NCT00499200     History of Changes
Other Study ID Numbers: 3197A1-1104
First Posted: July 11, 2007    Key Record Dates
Last Update Posted: July 9, 2008
Last Verified: July 2008

Additional relevant MeSH terms:
Alzheimer Disease
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Neurodegenerative Diseases
Neurocognitive Disorders
Mental Disorders