Why did the FDA deny approval for a monthly HIV treatment?

MOSCOW, RUSSIA MAY 19, 2019: A doctor collects a blood sample for an HIV test as part of the Stop ... (Image: ARTYOM GEODAKYAN/TASS)

Last week, the FDA denied the approval of Cabenuva, the first of its kind monthly HIV injection treatment. Developers hoped that the monthly injection would replace daily pills, thus making life easier for HIV patients and also possibly removing some…