C4 Therapeutics, Inc. is a clinical-stage biopharmaceutical company focused on discovering and developing innovative therapeutic candidates. Its core strategy involves degrading proteins implicated in disease, addressing a range of conditions including cancer, neurodegenerative disorders, and other illnesses. The company's primary drug candidate, CFT7455, is an orally administered MonoDAC degrader of the IKZF1 and IKZF3 proteins. This compound is currently undergoing Phase 1/2 clinical trials for the treatment of multiple myeloma and various non-Hodgkin lymphomas, such as peripheral T-cell lymphoma and mantle cell lymphoma. Additionally, C4 Therapeutics is advancing several other programs: CFT8634, an orally bioavailable BiDAC degrader targeting the BRD9 protein, for potential use in synovial sarcoma and SMARCB1-deleted solid tumors. CFT1946, an orally administered BiDAC degrader designed to act on the V600X mutant BRAF, aimed at indications like melanoma, non-small cell lung cancer (NSCLC), colorectal cancer, and other solid malignancies. CFT8919, an orally available, allosteric, and mutant-selective BiDAC degrader specifically targeting epidermal growth factor receptor (EGFR) with an L858R mutation in NSCLC. Their early-stage pipeline also features RET degraders for various forms of cancer. C4 Therapeutics, Inc. has formed strategic partnerships with F. Hoffmann-La Roche Ltd and Hoffmann-La Roche Inc., Biogen MA, Inc., and Calico Life Sciences LLC. The company was established in 2015 and its headquarters are located in Watertown, Massachusetts.
C4 Therapeutics Presents New Biomarker Data from the Cemsidomide Phase 1 Trial with Dexamethasone and Phase 1b Trial with Elranatamab (ELREXFIO®) in Relapsed/Refractory Multiple Myeloma at the 23rd International Myeloma Society (IMS) Annual Meeting
C4 Therapeutics presented new biomarker data at the IMS Annual Meeting showing cemsidomide drives robust T-cell activation and NK-cell reprogramming in 62 heavily pre-treated relapsed/refractory multiple myeloma patients.
The safety data review committee declared the first 75 µg cemsidomide dose level safe in the Phase 1b trial combining cemsidomide with elranatamab (ELREXFIO), advancing the study into dose escalation at 100 µg and a 75 µg expansion cohort.
Preliminary biomarker data from the first two Phase 1b patients showed CD8+ T-cell expansion and prevention of T-cell exhaustion, supporting cemsidomide as a potential backbone combination partner; full Phase 1b cohort data are expected in mid-2027.