Mabwell (Shanghai) Bioscience Co. Ltd. has announced that SST-001 (18F-FD4), an α-synuclein-targeted PET tracer developed by Mabwell’s incubated company Synusight Biotech, has received clinical trial clearance from China’s National Medical Products Administration (NMPA). The planned phase I trial will enroll healthy volunteers, patients with multiple system atrophy (MSA), and patients with Parkinson’s disease.