Fusion protein · Antagonist of CD37 · developed by Aptevo Therapeutics
Otlertuzumab is a recombinant single-chain polypeptide engineered to retain the binding and activity of an anti-CD37 monoclonal antibody. It binds CD37, a transmembrane glycoprotein expressed on B cells, and may act through antibody-dependent cell-mediated cytotoxicity and apoptosis. It is studied in chronic lymphocytic leukemia, non-Hodgkin's lymphoma, and peripheral T-cell lymphoma.
Summary written with AI from the sources listed at the end of this page.
| Trial | Phase | Condition | Status | Sponsor |
|---|---|---|---|---|
| NCT01188681 | Phase 1/2 | Chronic Lymphocytic Leukemia (CLL) | Completed | APVO |
| NCT01644253 | Phase 1 | Chronic Lymphocytic Leukemia | Terminated | APVO |
| NCT01317901 | Phase 1 | B-cell Small Lymphocytic Lymphoma Recurrent | Completed | APVO |
| NCT00614042 | Phase 1 | Chronic Lymphocytic Leukemia (CLL) | Completed | APVO |
Trials of the companies BioRadar tracks, from ClinicalTrials.gov, most advanced phase first.
B-cell Small Lymphocytic Lymphoma RecurrentChronic Lymphocytic LeukemiaChronic Lymphocytic Leukemia (CLL)Non-Hodgkin's Lymphoma (NHL)Peripheral T-cell Lymphoma
Updated Oct 11, 2026. Something wrong or missing? Report it on the APVO page.
See APVO's upcoming FDA decisions, trial readouts, cash runway and dilution risk, updated every day from SEC, FDA and ClinicalTrials.gov filings.
APVO catalysts and pipeline →