no Condition Clinical Trial
Official title:
An Ascending Dose Tolerability Study and Pharmacokinetic Assessment in Healthy Male and Female Volunteers After Single & Multiple Oral Administration of DF2755A
Primary objective: •To evaluate the tolerability and safety of ascending single doses of DF2755A in healthy adult male and female volunteers. Secondary Objectives: - To determine the pharmacokinetics parameters of DF2755A - To establish a dose concentration-response relationship over a wide range of doses in order to select a narrower range of dose and dosing regimen to be subsequently studied in patients after single administration - To evaluate the effect of ascending single doses on the pharmacodynamics parameters - To compare metabolites pathway in Human with the one observed in animals Please note that the study has been closed after Part A (single ascending doses), so all the objectives were revised accordingly.
The study was a phase I, single center, double-blind, placebo controlled, randomized, ascending single doses study in healthy male and female volunteers. The design consisted of a double blind comparison of the test compound versus placebo in which the dose is increased in successive treatment periods. The escalating dose had the aim of achieving enough safety information on an interval of doses possibly encompassing both the effective dose and the maximum tolerated dose (defined as the highest dose devoid of any clinical signs/symptoms). Practically, of the two Parts planned - part A and Part B - only the Part A took place. The Part A consisted of single doses of 50 mg oad, 150 mg oad, 450 mg oad or 700 mg oad of DF2755A tested in healthy male and female volunteers who were hospitalized approximately for 4 days (D-1 morning to D4 morning). The planned Part B should have consisted of repeated doses of 100 mg bid, 200 mg bid or 300 mg bid of DF2755A) but it was not performed. Hence, the study was terminated at the end of Part A and, consequently, both the methodology and the endpoints were revised accordingly. ;
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