PMID- 22634443 OWN - NLM STAT- MEDLINE DCOM- 20130109 LR - 20141009 IS - 2164-554X (Electronic) IS - 2164-5515 (Linking) VI - 8 IP - 5 DP - 2012 May TI - Background morbidity in HIV vaccine trial participants from various geographic regions as assessed by unsolicited adverse events. PG - 630-8 LID - 10.4161/hv.19454 [doi] AB - BACKGROUND: Recently, more clinical trials are being conducted in Africa and Asia, therefore, background morbidity in the respective populations is of interest. Between 2000 and 2007, the International AIDS Vaccine Initiative sponsored 19 Phase 1 or 2A preventive HIV vaccine trials in the US, Europe, Sub-Saharan Africa and India, enrolling 900 healthy HIV-1 uninfected volunteers. OBJECTIVE: To assess background morbidity as reflected by unsolicited adverse events (AEs), unrelated to study vaccine, reported in clinical trials from four continents. METHODS: All but three clinical trials were double-blind, randomized, and placebo-controlled. Study procedures and data collection methods were standardized. The frequency and severity of AEs reported during the first year of the trials were analyzed. To avoid confounding by vaccine-related events, solicited reactogenicity and other AEs occurring within 28 d after any vaccination were excluded. RESULTS: In total, 2134 AEs were reported by 76% of all participants; 73% of all events were mild. The rate of AEs did not differ between placebo and vaccine recipients. Overall, the percentage of participants with any AE was higher in Africa (83%) compared with Europe (71%), US (74%) and India (65%), while the percentage of participants with AEs of moderate or greater severity was similar in all regions except India. In all regions, the most frequently reported AEs were infectious diseases, followed by gastrointestinal disorders. CONCLUSIONS: Despite some regional differences, in these healthy participants selected for low risk of HIV infection, background morbidity posed no obstacle to clinical trial conduct and interpretation. Data from controlled clinical trials of preventive interventions can offer valuable insights into the health of the eligible population. FAU - Schmidt, Claudia AU - Schmidt C AD - International AIDS Vaccine Initiative, New York, NY, USA. FAU - Smith, Carol AU - Smith C FAU - Barin, Burc AU - Barin B FAU - Bakhtyari, Arash AU - Bakhtyari A FAU - Bart, Pierre-Alexandre AU - Bart PA FAU - Bekker, Linda-Gail AU - Bekker LG FAU - Chomba, Elwyn AU - Chomba E FAU - Clumeck, Nathan AU - Clumeck N FAU - Ho, David AU - Ho D FAU - Hoosen, Anwar AU - Hoosen A FAU - Jaoko, Walter AU - Jaoko W FAU - Kaleebu, Pontiano AU - Kaleebu P FAU - Karita, Etienne AU - Karita E FAU - Keefer, Michael C AU - Keefer MC FAU - van Lunzen, Jan AU - van Lunzen J FAU - McMichael, Andrew AU - McMichael A FAU - Mehendale, Sanjay AU - Mehendale S FAU - Peters, Barry AU - Peters B FAU - Ramanathan, Vadakkuppatu D AU - Ramanathan VD FAU - Robinson, Andrew AU - Robinson A FAU - Rockstroh, Juergen AU - Rockstroh J FAU - Vardas, Eftyhia AU - Vardas E FAU - Vets, Eva AU - Vets E FAU - Weber, Jonathan AU - Weber J FAU - Graham, Barney S AU - Graham BS FAU - Than, Soe AU - Than S FAU - Excler, Jean-Louis AU - Excler JL FAU - Kochhar, Sonali AU - Kochhar S FAU - Ho, Martin AU - Ho M FAU - Heald, Alison AU - Heald A FAU - Fast, Patricia E AU - Fast PE LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20120501 PL - United States TA - Hum Vaccin Immunother JT - Human vaccines & immunotherapeutics JID - 101572652 RN - 0 (AIDS Vaccines) RN - 0 (Placebos) SB - IM MH - AIDS Vaccines/*administration & dosage/adverse effects MH - Adolescent MH - Adult MH - Africa South of the Sahara/epidemiology MH - *Cost of Illness MH - Double-Blind Method MH - Europe/epidemiology MH - HIV Infections/*prevention & control MH - Human Experimentation MH - Humans MH - India/epidemiology MH - Male MH - Middle Aged MH - Placebos/administration & dosage MH - United States/epidemiology MH - Young Adult EDAT- 2012/05/29 06:00 MHDA- 2013/01/10 06:00 CRDT- 2012/05/29 06:00 PHST- 2012/05/29 06:00 [entrez] PHST- 2012/05/29 06:00 [pubmed] PHST- 2013/01/10 06:00 [medline] AID - 19454 [pii] AID - 10.4161/hv.19454 [doi] PST - ppublish SO - Hum Vaccin Immunother. 2012 May;8(5):630-8. doi: 10.4161/hv.19454. Epub 2012 May 1.