Hydroxychloroquine Prophylaxis against Coronavirus Disease-19: Practice Outcomes among Health-Care Workers

8/4 Pre-Exposure Prophylaxis study (treated before exposed to the virus)

Bhatt et al., medRxiv, doi:10.1101/2021.08.02.21260750 (Preprint)
Hydroxychloroquine Prophylaxis against Coronavirus Disease-19: Practice Outcomes among Health-Care Workers

Source PDF Share Tweet

Observational study of 927 low-risk healthcare workers in India, 731 volunteering for weekly HCQ prophylaxis, showing higher cases with treatment in unadjusted results. Clinical outcome was in the protocol, however no information on which patients were symptomatic is provided. There were no adverse events and no hospitalizations or deaths. Adherence was very low, decreasing weekly, with almost all participants discontinuing by week 11. The majority of infections occurred in later weeks when adherence was very low, and there was no per protocol analysis. #ECR/206/Inst/GJ/2013/RR-20.

Bhatt et al., 8/4/2021, prospective, India, South Asia, preprint, 4 authors.

risk of COVID-19 case, 49.3% higher, RR 1.49, p = 0.02, treatment 167 of 731 (22.8%), control 30 of 196 (15.3%).

Effect extraction follows pre-specified rules prioritizing more serious outcomes. For an individual study the most serious outcome may have a smaller number of events and lower statistical signficance, however this provides the strongest evidence for the most serious outcomes when combining the results of many trials.

All 344 studies Meta Analysis

Please send us corrections, updates, or comments. Vaccines and treatments are both extremely valuable and complementary. All practical, effective, and safe means should be used. Elimination of COVID-19 is a race against viral evolution. No treatment, vaccine, or intervention is 100% available and effective for all current and future variants. Denying the efficacy of any method increases the risk of COVID-19 becoming endemic; and increases mortality, morbidity, and collateral damage. We do not provide medical advice. Before taking any medication, consult a qualified physician who can provide personalized advice and details of risks and benefits based on your medical history and situation. Treatment protocols for physicians are available from the FLCCC.

Submit