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Study Evaluating the Safety and Tolerability of NSA-789

This study has been completed.
Information provided by:
Wyeth is now a wholly owned subsidiary of Pfizer Identifier:
First received: February 8, 2008
Last updated: February 16, 2009
Last verified: February 2009
This is the first time that NSA-789, a new compound being developed for schizophrenia, will be given to humans. Each healthy subject will receive a single dose, except for 8 subjects who will receive 2 doses-- one dose under fasting conditions and one dose after eating food.

Condition Intervention Phase
Drug: NSA-789
Drug: placebo
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator)
Official Title: Ascending Single Dose Study of the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of NSA-789 Administered Orally to Healthy Subjects

Further study details as provided by Wyeth is now a wholly owned subsidiary of Pfizer:

Primary Outcome Measures:
  • Safety and tolerability from reported adverse events, scheduled physical examinations, vital signs, cardiac rhythm monitoring, 12-lead ECGs, and clinical laboratory test results [ Time Frame: 3 months ]

Secondary Outcome Measures:
  • pharmacokinetics [ Time Frame: 3 months ]

Estimated Enrollment: 64
Study Start Date: March 2008
Study Completion Date: May 2008
Primary Completion Date: May 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: NSA-789
active drug
Drug: NSA-789
Placebo Comparator: placebo
Drug: placebo


Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes


  • Healthy men and women between 18 and 50 years old.
  • Women must be of non-child-bearing potential (not able to have children).
  • Must be of normal body weight.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00633048

United States, Washington
Tacoma, Washington, United States, 98418
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
  More Information

Responsible Party: Wyeth (Registry Contact: Clinical Trials Registry Specialist), Wyeth Identifier: NCT00633048     History of Changes
Other Study ID Numbers: 3230A1-1000
Study First Received: February 8, 2008
Last Updated: February 16, 2009

Keywords provided by Wyeth is now a wholly owned subsidiary of Pfizer:
ascending single-dose study
healthy subjects processed this record on April 27, 2017