- In Part I, the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of single ascending doses of P11187 will be studied in healthy, overweight or obese, male and females (of non-child bearing potential) subjects. There will be up to 6 cohorts of 8 subjects each. At each dose level, 6 subjects will receive a single dose of active treatment, P11187 and 2 subjects will receive a single dose of matching placebo. It is planned that up to 6 dose levels of P11187 may be evaluated after single dose administration.