IntroductionArtemisinin-based combination therapy is currently the best option for the treatment of uncomplicated malaria. Quinine is recommended as a rescue treatment. Safety information during repeated treatment with the same drug is scarce. We report safety data from the Quinact randomized clinical trial (RCT) that was designed to assess efficacy and safety of artesunate-amodiaquine (ASAQ), artemether-lumefantrine (AL) and quinine+clindamycin (QnC).MethodologyMales and females aged 12 to 59 months with uncomplicated malaria were treated with ASAQ and followed up during 42 days (preRCT). Clinical failures were randomized to one of the 3 treatments and followed up for 28 days (RCT). Subsequent failures were repeatedly treated with ASAQ several times as needed (postRCT1, postRCT2 and so on) until a 28-days follow up period without parasitaemia.ResultsEight hundred and sixty-five, 242 and 64 patients were recruited respectively in preRCT, RCT and postRCTs. In preRCT, 433 (50.0%) patients experienced at least one drug-related adverse event (AE). The most reported AEs were anorexia (22.9%), asthenia (19.4%), and abnormal behavior (14.6%). Twenty-nine AEs (3.5%) were reported to be severe. In RCT, at least one drug-related AE was reported in 54.7%, 21.5% and 40.0% of patient randomized respectively to ASAQ, AL and QnC (p<0.001). During postRCT1 (n = 64), postRCT 2 (n = 17) and postRCT3 (n = 7), respectively 32.8%, 35.3% and 71.4% of patients experienced at least one drug-related AE. Three serious adverse events occurred but not judged related to study medication.ConclusionThe proportion of AEs did not increase over the treatment courses with ASAQ. However, continuous monitoring is important.
Objective: The aim of this study is to evaluate the reaction of students to adverse events following immunization in order to offer a baseline for developing a communication and risk management plan. Method: This is a cross-sectional study conducted in Kinshasa. A survey was conducted between the third and the fourth rounds of Supplementary Immunization Activity. Nine hundred and fifty questionnaires were used and addressed students who attended this university from 1 to 10 June 2011. Results: Completed questionnaires were received from 848 students, with 485 females (57.2%), 343 males (40.4%), and 20 unknown (2.4%); 46.9% of students were from the faculty of medicine and 24.7% was from the third graduate degree. From those who completed the questionnaire, 136 (16.4%) reported experiencing an adverse events following immunization. Concerning the attitude of students towards adverse events following immunization, 79 students (58.5%) did nothing; 54 (40.0%) opted for selfmedication; 2 (1.5%) went to the hospital. Conclusion: The main finding of our study is the low rate of people referring to health-care providers for vaccine-related problems, more specially for adverse events following immunization. A risk management plan should be focused in strategies to increase communication between population and health-care providers.
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