Conditions: Pharmacodynamics Healthy Subjects
Keywords: Pharmacodynamics AZD9977 Safety Tolerability Pharmacokinetics Eplerenone Fludrocortisone
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 40
Healthy volunteers: yes

Brief summary:
This is a Phase I, Randomized, Single-Blind, Crossover Study to Assess the Pharmacodynamics of AZD9977 following Single-Dose administration to healthy male subjects

Detailed description:
This study will be a phase I study to assess the pharmacodynamics of AZD9977 following single-dose administration to healthy male subjects. It is a single-blind (with regards to AZD9977 and AZD9977 Placebo), randomized, four-treatment, four-period crossover design, with a potential 5th and 6th randomized cross-over treatment period. In this study eplerenone is used as a positive control and fludrocortisone will be used as a challenge agent. In addition the safety, tolerability and pharmacokinetics will be assessed.

Arms:
arm 1: Period 1: fludrocortisone + eplerenone + AZD9977 Period 2: fludrocortisone + eplerenone + AZD9977 Placebo Period 3: fludrocortisone + AZD9977 Placebo Period 4: fludrocortisone + AZD9977 Period 5: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment Period 6: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment arm 2: Period 1: fludrocortisone + AZD9977 Placebo Period 2: fludrocortisone + eplerenone + AZD9977 Period 3: fludrocortisone + AZD9977 Period 4: fludrocortisone + eplerenone + AZD9977 Placebo Period 5: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment Period 6: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment arm 3: Period 1: fludrocortisone + AZD9977 Period 2: fludrocortisone + AZD9977 Placebo Period 3: fludrocortisone + eplerenone + AZD9977 Placebo Period 4: fludrocortisone + eplerenone + AZD9977 Period 5: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment Period 6: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment arm 4: Period 1: fludrocortisone + eplerenone + AZD9977 Placebo Period 2: fludrocortisone + eplerenone + AZD9977 Period 3: fludrocortisone + AZD9977 Period 4: fludrocortisone + AZD9977 Placebo Period 5: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment Period 6: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment arm 5: Period 1: fludrocortisone + eplerenone + AZD9977 Period 2: fludrocortisone + eplerenone + AZD9977 Placebo Period 3: fludrocortisone + AZD9977 Placebo Period 4: fludrocortisone + AZD9977 Period 5: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment Period 6: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment arm 6: Period 1: fludrocortisone + AZD9977 Placebo Period 2: fludrocortisone + eplerenone + AZD9977 Period 3: fludrocortisone + AZD9977 Period 4: fludrocortisone + eplerenone + AZD9977 Placebo Period 5: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment Period 6: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment arm 7: Period 1: fludrocortisone + AZD9977 Period 2: fludrocortisone + AZD9977 Placebo Period 3: fludrocortisone + eplerenone + AZD9977 Placebo Period 4: fludrocortisone + eplerenone + AZD9977 Period 5: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment Period 6: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment arm 8: Period 1: fludrocortisone + eplerenone + AZD9977 Placebo Period 2: fludrocortisone + AZD9977 Period 3: fludrocortisone + eplerenone + AZD9977 Period 4: fludrocortisone + AZD9977 Placebo Period 5: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment Period 6: fludrocortisone + eplerenone and/or AZD9977 or AZD9977 Placebo treatment

Interventions: intervention 1: AZD9977 oral suspension intervention 2: AZD9977 placebo oral suspension intervention 3: Fludrocortisone, tablets intervention 4: Eplerenone, tablets
Intervention descriptions: intervention 1: AZD9977 oral suspension, single dose intervention 2: oral suspension, single dose intervention 3: Loading dose of 0.5 mg and maintenance doses of 0.1 mg every second hour up to a total dose of 1.0 mg per treatment period (may be modified to up to 1.3 mg based on emerging data) intervention 4: 100 mg (2 x 50 mg tablets) single dose, may be modified based on emerging data (will not exceed 500 mg per treatment period)

Protocol document: