A Multinational Phase III Study of CS-8958 (MARVEL)
The primary objective of this study is to confirm the efficacy of CS-8958 administered as a single inhaled low dose or single inhaled high dose by showing non-inferiority to oseltamivir phosphate using the time to alleviation of influenza illness. For safety evaluation, between-group comparisons will be made with regard to incidence of adverse events and other safety measures.
In a secondary objective, the optimum dosage of CS-8958 for this indication will be evaluated based on the efficacy and safety of single inhaled low or high dose.
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||A Randomized Double-blind Controlled Study of CS-8958 Versus Oseltamivir Phosphate in Patients With Influenza Virus Infection|
- Time to Alleviation of Influenza Illness [ Time Frame: 15 days ] [ Designated as safety issue: No ]The time to illness alleviation which was defined as the time from the initiation of trial treatment to the beginning of the first 21.5-h period in which all influenza symptoms were "absent" or "mild." Patients recorded their severity of influenza symptoms (headache, myalgia/arthralgia, fatigue, chills/sweats, nasal symptom, sore throat, and cough) 4 times daily for 15 days. Patients whose influenza symptoms had not been alleviated at the time of their withdrawal from the study or at the end of the observation period were censored.
- Time for Body Temperature to Return to Normal [ Time Frame: 15 days ] [ Designated as safety issue: No ]Time for return to normal axillary temperature was was defined as the time until the beginning of the first 21.5-hour period in which the axillary temperature returned to 36.9°C. Patients recorded their axillary temperature 4 times daily for 15 days. Patients whose axillary temperature had not been returned to 36.9°C at the time of their withdrawal from the study or at the end of the observation period were censored.
|Study Start Date:||November 2008|
|Study Completion Date:||June 2009|
|Primary Completion Date:||March 2009 (Final data collection date for primary outcome measure)|
Experimental: CS-8958 Low Dose
CS-8958 powder to be inhaled - low-dose arm
CS-8958 powder 20 mg to be inhaled one time. Oseltamivir phosphate placebo capsules 2 times per day for 5 days
Experimental: CS-8958 High Dose
CS-8958 powder to be inhaled - high-dose arm
CS-8958 powder 40 mg to be inhaled one time. Oseltamivir phosphate placebo capsules 2 times per day for 5 days
Active Comparator: Oseltamivir phosphate
oseltamivir phosphate oral capsules
Drug: oseltamivir phosphate
CS-8958 placebo powder to be inhaled one time. Oseltamivir phosphate oral capsules taken twice daily for 5 days.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00803595
|Korea, Republic of|
|Seoul, Korea, Republic of|