et al., Medicine (Baltimore), doi:10.1097/MD.0000000000023720 (preprint 5/2) (Peer Reviewed)
Very small retrospective analysis of 34 patients finding slower binary PCR viral clearance with HCQ. No information on severity for treatment versus control is provided. No deaths, ICU admission, or mechanical ventilation. Binary PCR does not distinguish replication-competence. HCQ treatment started very late for many patients with >= 9 days for 25%.
Mallat et al., 5/2/2020, retrospective, Abu Dhabi, Middle East, peer-reviewed, 8 authors.
time to viral-, 203.0% higher, relative time 3.03, p = 0.02, treatment 23, control 11.