The Safety and Dose Response to Single Anal Doses of NRL001

Single centre dose-finding and proof-of-concept study in healthy volunteers to assess the effects of single doses of NRL001 on the mean anal resting pressure (MARP). In addition, the pharmacokinetics of NRL001 and subject safety are also examined.

This is a single centre dose-finding and proof-of-concept study in healthy volunteers to assess the effects of single doses of NRL001 on the mean anal resting pressure (MARP). In addition, the pharmacokinetics of NRL001 and subject safety are also examined. The study consists of four parts, which evaluate different NRL001 concentrations and sites of application. Treatments consist of a single local application of either 0.3%, 1% or 3% w/w NRL001 gel applied peri-anally, of either 1% or 3% w/w NRL001 gel applied intra-anally, or 1% w/w NRL001 administered rectally. In addition, a 10 mg NRL001-containing suppository applied to the rectum is assessed.