Tectonic Therapeutic, Inc., a clinical stage biotechnology company focuses on the discovery and development of therapeutic proteins and antibodies to modulate the activity of G-protein coupled receptors(GPCRs). It offers GEODe technology platform to enable the discovery and development of GPCR-targeted biologic medicines. The company's pipeline products include RXFP1 agonist, which is in ongoing phase 1a and 1b for the indication of heart failure with preserved ejection fraction; GPCR antagonist for indication of hereditary hemorrhagic telangiectasia; bi-functional GPCR modulator for indication of fibrosis; and GPCR modulators. Tectonic Therapeutic, Inc. is based in Watertown, Massachusetts.