The World Health Organization (WHO) announced Saturday it is halting its trials of the malaria drug hydroxychloroquine and HIV treatment lopinavir/ritonavir in patients hospitalized with the coronavirus after results showed the drugs did not reduce mortality rates."These interim trial results show that hydroxychloroquine and lopinavir/ritonavir produce little or no reduction in the mortality of hospitalized COVID-19 patients when compared to standard of care. Solidarity trial investigators will interrupt the trials with immediate effect," the WHO said in a statement, referencing multi-country trials it is conducting.