15/04/2026 FDA Grants Orphan Drug Status to Immutep’s Eftilagimod Alfa in Soft Tissue Sarcoma FDA Grants Fast Track to Opna Bio’s OPN-6602 for Relapsed/Refractory Multiple Myeloma FDA Grants Orphan Drug Status to Immutep’s Eftilagimod Alfa in Soft Tissue Sarcoma (Ref) Immutep’s lead candidate, eftilagimod alfa (efti), has received Orphan Drug Designation from the U.S. FDA for soft tissue sarcoma (STS), a rare cancer with high unmet need Supporting clinical data: Based on resu