Safety, Tolerability and Efficacy Study of PP1420 in HV

Obesity is a growing pandemic which affects 1 in 4 adults in the UK, and shortens life by increasing cardiovascular disease, diabetes and cancer. Current treatments for obesity have either poor efficacy or significant side effects. Pancreatic polypeptide (PP) is a promising new drug target as it produces powerful appetite suppression which, following a 90-minute infusion continues to act for 24 h in man. We have developed a new long lasting high potency analogue of PP, PP1420. This is delivered as a once-a-day subcutaneous injection via a painless fine-gauge needle. In a first-time-in-man Phase 1a trial, that PP 1420 proved safe, well tolerated, and had extended pharmacokinetics compared to PP itself. We now plan to study the safety and PK of PP1420 up to 64mg. We will also assess: 1. Its efficacy in reducing food intake after a single dose in a Phase 1B study in healthy volunteers. 2. Its efficacy in reducing food intake and weight after multiple dosing in a Phase 1C study in healthy volunteers.