Overview Study of the Safety and Efficacy of STI-5656 (Abivertinib Maleate) in Subjects Hospitalized Due to COVID-19 Status: Completed Trial end date: 2021-10-07 Target enrollment: Participant gender: Summary A phase 2, placebo-controlled study of the safety and efficacy of STI-5656 (Abivertinib Maleate) in subjects hospitalized due to COVID-19 Phase: Phase 2 Details Lead Sponsor: Sorrento Therapeutics, Inc.Treatments: AbivertinibMaleic acid