Brief: Avacta Group Announces Phase 1 Study Opening For AVA6103
March 16 (Reuters) - Avacta Group PLC AVCT.L: AVACTA GROUP PLC - PHASE 1 STUDY OPENING FOR AVA6103 Source text: ID:nRSP6745Wa Further company coverage: AVCT.L ((Reuters.Briefs@thomsonreuters.com;))