A Study to Evaluate Safety, Tolerability, Plasma Drug Levels, and Cognitive Response Following Multiple Doses of a Drug in Healthy Elderly Participants.
Conditions
Interventions
- DRUG: PF-04447943
- DRUG: PF-04447943
- DRUG: PF-04447943
- DRUG: PF-04447943
- DRUG: PF-04447943
Sponsor
Pfizer