ArkBio's RSV Antiviral Drug Ziresovir Receives FDA Approval for Phase II Clinical TrialPublished byen.prnasia.comon •1 min readSHANGHAI, Aug. 14, 2026 /PRNewswire/ -- Shanghai Ark Biopharmaceutical Co., Ltd.ArkBioZiresovirAK0529FDA approvalPhase II clinical trialReceivesApprovedLearn moreShareLegalReport