Healthy Adult Male Volunteers Clinical Trial
Official title:
Explorative Study of the Safety/Tolerability of Beclomethasone Dipropionate Suppositories: Evaluation of Systemic Bioavailability and Effects on 24-Hour Plasma Cortisol Profile of 6 mg Delivered Once Daily Versus 3 mg Delivered Twice Daily in Healthy Adult Male Volunteers
Single-centre, randomized, double-blind, two-period, two-sequence, cross-over 7-day study. This study is the first safety/tolerability evaluation of a product -suppository formulation containing 6 mg BDP (once daily dosing), a second-generation oral or rectal corticosteroids with high topical anti-inflammatory efficacy in the gut and minimal systemic bioavailability (BA). BDP is marketed in different pharmaceutical formulations, including 3 mg suppositories, and approved for ulcerative proctosigmoiditis in the first attack or exacerbation phase at the dosage of 3 mg twice a day. For these reasons, a 6 mg suppository (Test - "T" product) is a scale-up of the 3 mg formulation (Reference - "R" product). For locally-applied-locally acting drug products that result in quantifiable systemic availability due to absorption from the administration site, relative systemic BA is informative for safety, but also with respect to efficacy. Therefore, safety/tolerability of T is evaluated through a comparison to R.
Primary objective is the evaluation of systemic safety of T, based on valid surrogate outcomes - systemic BA (relative BA) at the start of treatment (first 24 hours) and after 7 days of continuous treatment; effects on the hypothalamo-pituitary-adrenal axis (HPA) assessed based on 24-hour cortisol profile after 7 days of continuous treatment. This includes identification of subjects with cortisol levels <10 μg/dL at the last sampling point in the 24-hour cortisol profile (08:00 a.m. on Day 8). In such cases, identified subjects will undergo ACTH stimulation test in the morning of Day 9. Secondary objective is the evaluation of safety/tolerability based on clinical and laboratory adverse events. ;
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