Cara starts Phase I trial of analgesic

The Phase Ia single-center clinical trial will evaluate the safety, tolerability, pharmacokinetic profile, and pharmacological activity of CR845 in a double-blind, randomized, placebo-controlled, single escalating intravenous dose study in 58 healthy male and female volunteers.

In preclinical studies, CR845 was highly selective for the peripheral kappa opioid receptor. Animal studies indicate that CR845 is effective in treating pain of inflammatory, neuropathic and visceral origin and exhibits analgesic efficacy for up to 18 hours after a single dose. The company is also developing oral and subcutaneous formulations of CR845.