4D Molecular Therapeutics, Inc., a clinical-stage gene therapy company, develops product candidates using its adeno-associated viruses vectors. It develops a portfolio of gene therapy product candidates focuses in three therapeutic areas: ophthalmology, cardiology, and pulmonology. The company has three product candidates that are in clinical trials: 4D-125 that is in a Phase 1/2 clinical trial for the treatment of X-linked retinitis pigmentosa; 4D-110 that is in a Phase 1 clinical trial for the treatment of choroideremia; and 4D-310, which is in a Phase 1/2 clinical trial for the treatment of Fabry disease. Its two IND candidates are 4D-150 for the treatment of wet age-related macular degeneration and 4D-710 for the treatment of cystic fibrosis lung disease. 4D Molecular Therapeutics, Inc. has research and collaboration arrangements with uniQure; Benitec; CRF; Roche; CFF; and AstraZeneca. The company was founded in 2013 and is headquartered in Emeryville, California.