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NIDA-CPU-0004
The primary objective of this study is to determine safety of GBR 12909 administration and if there are significant interactions between GBR 12909 treatment concurrent with i.v. cocaine infusions of 20 and 40 mg by measuring adverse events and cardiovascular responses [heart rate (HR), blood pressure (BP), and electrocardiogram (ECG)]. Note: A significant interaction is defined as: more than 50% of the subjects treated with GBR 12909 experience a pharmacodynamic interaction when challenged with cocaine, which brings the stopping criteria (section 12.4.5) into effect.
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