Conditions: Healthy Volunteers
Keywords: Drug therapy
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 36
Healthy volunteers: yes

Brief summary:
The purpose of this study is to assess the effect of antacid administration, and its timing, on the bioavailability of a single dose of febuxostat extended-release (XR) 80 mg.

Detailed description:
The drug being tested in this study is called febuxostat extended-release (XR). Febuxostat XR is being tested to assess if antacids affect how the drug moves throughout the body. This study will look at lab safety and side effects in people who take febuxostat XR.

This cross-over study will enroll approximately 36 patients. Participants will be randomly assigned to one of four treatment sequences. All participants will receive the following study medications by the end of the study:

* Febuxostat XR 80 mg capsules
* Maalox Advance Regular Strength liquid containing Aluminum Hydroxide 200 mg, Magnesium Hydroxide 200 mg, and Simethicone 20 mg/5 mL or equivalent

All participants will be administered one dose of one or both of the study medications on Day 1 of four separate study periods.

This single-centre trial will be conducted in the United States. The overall time to participate in this study is up to 84 days. Participants will make 5 visits to the clinic including four 4-day periods of confinement to the clinic, and will be contacted by telephone 30 days after last dose of study drug for a follow-up assessment.

Arms:
arm 1: Experimental: Sequence 1: ABDC Febuxostat 80 mg extended-release (XR) capsule, orally, once, after a 10-hour fast, and 20 mL Maalox Advance Regular Strength liquid containing Aluminum Hydroxide 200 mg, Magnesium Hydroxide 200 mg, and Simethicone 20 mg/5 mL (hereafter referred as Maalox) or equivalent, orally, once, after a 10-hour fast, on Day 1 of Period 1 (A), followed by a 7-day washout period, followed by Maalox or equivalent, orally, once, after a 9-hour fast, and febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast (1 hour after Maalox or equivalent), on Day 1 of Period 2 (B), followed by a 7-day washout period, followed by febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast, on Day 1 of Period 3 (D), followed by a 7-day washout period, followed by febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast, and Maalox or equivalent, orally, once, after an 11-hour fast (1 hour after febuxostat), on Day 1 of Period 4 (C). arm 2: Experimental: Sequence 2: DACB Febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast, on Day 1 of Period 1, followed by a 7-day washout period, followed by febuxostat 80 mg extended-release (XR) capsule, orally, once, after a 10-hour fast, and Maalox or equivalent, orally, once, after a 10-hour fast, on Day 1 of Period 2, followed by a 7-day washout period, followed by febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast, and Maalox or equivalent, orally, once, after an 11-hour fast (1 hour after febuxostat), on Day 1 of Period 3, followed by a 7-day washout period, followed by Maalox or equivalent, orally, once, after a 9-hour fast, and febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast (1 hour after Maalox or equivalent), on Day 1 of Period 4. arm 3: Febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast, and Maalox or equivalent, orally, once, after an 11-hour fast (1 hour after febuxostat), on Day 1 of Period 1, followed by a 7-day washout period, followed by febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast, on Day 1 of Period 2, followed by a 7-day washout period, followed by Maalox or equivalent, orally, once, after a 9-hour fast, and febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast (1 hour after Maalox or equivalent), on Day 1 of Period 3, followed by a 7-day washout period, followed by Febuxostat 80 mg extended-release (XR) capsule, orally, once, after a 10-hour fast, and Maalox or equivalent, orally, once, after a 10-hour fast, on Day 1 of Period 4. arm 4: Maalox or equivalent, orally, once, after a 9-hour fast, and febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast (1 hour after Maalox), on Day 1 of Period 1, followed by a 7-day washout period, followed by febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast, and Maalox or equivalent, orally, once, after an 11-hour fast (1 hour after febuxostat), on Day 1 of Period 2, followed by a 7-day washout period, followed by febuxostat 80 mg extended-release (XR) capsule, orally, once, after a 10-hour fast, and Maalox or equivalent, orally, once, after a 10-hour fast, on Day 1 of Period 3, followed by a 7-day washout period, followed by febuxostat 80 mg XR capsule, orally, once, after a 10-hour fast, on Day 1 of Period 4.

Interventions: intervention 1: Febuxostat XR intervention 2: Maalox Advance Regular Strength liquid
Intervention descriptions: intervention 1: Febuxostat extended-release (XR) capsules intervention 2: Maalox Advance Regular Strength liquid containing Aluminum Hydroxide 200 mg, Magnesium Hydroxide 200 mg, and Simethicone 20 mg/5 mL or equivalent

Protocol document: