P1/2, N=132, Not yet recruiting, Servier Bio-Innovation LLC

P1, N=70, Completed, Sutro Biopharma, Inc. | Active, not recruiting --> Completed | Trial completion date: Nov 2023 --> Mar 2024 | Trial primary completion date: Jan 2023 --> Feb 2024

P1/2, N=9, Terminated, BioNova Pharmaceuticals (Shanghai) LTD. | N=50 --> 9 | Trial completion date: Dec 2024 --> Dec 2023 | Recruiting --> Terminated; Due to company decision

In summary, our study opens the door for further evaluation of ADCs in several indications not explored before.

Conclusions CD74 and SLAMF7 is highly present in melanoma, correlates with PD-L1 expression and predict response to anti-PD-(L)1 therapies. This finding suggests to explore potential combinations between ADCs against these targets and anti-PD-(L)1 therapies.

P1/2, N=50, Recruiting, BioNova Pharmaceuticals (Shanghai) LTD. | Not yet recruiting --> Recruiting

In MCL Mino and Jeko-1 xenografts, STRO-001 starting at 3 mg/kg significantly prolonged survival or induced tumor regression, respectively, leading to tumor eradication in both models. In summary, high CD74 expression levels in tumors, nanomolar cellular potency, and significant anti-tumor in DLBCL and MCL xenograft models support the ongoing clinical study of STRO-001 in patients with B-cell NHL.

No abstract available

Review of diagnostic genomic profile mid induction showed a BCR::ABL minor breakpoint fusion as well as CBF::GLIS fusion.The child began AML induction on COG AAML1831 trial randomized to the experimental arm with CPX-351 and gemtuzumab ozogamicin (GO). Due to lack of response to AML therapy at end of Induction (EOI) I, she was taken off protocol and started on modified ALL regimen for Induction II consisting of cytarabine, low dose weekly methotrexate and bimonthly peg-asparaginase with addition of an oral TKI, dasatinib...Given availability of FOLR1 directed ADC on single-patient compassionate use basis, patient received single agent STRO-001 on a bi-monthly basis...Long-term follow-up is required to assess durability of remission. Additional testing of this approach in a larger patient population is needed to determine the role of STRO-002 in this high-risk pediatric AML population.

P1/2, N=50, Not yet recruiting, BioNova Pharmaceuticals (Shanghai) LTD.

Furthermore, CD74 engagement enhances the cytotoxic effects of conventional chemotherapeutics in ALCL cell lines, as well as the action of the ALK-inhibitor crizotinib in ALK ALCL or of CD95 death-receptor signaling in ALK ALCL. Finally, we demonstrate that the CD74-targeting antibody-drug conjugate STRO-001 efficiently and specifically kills CD74-positive ALCL cell lines in vitro. Taken together, these findings enabled us to demonstrate aberrant CD74-expression in ALCL cells, which might serve as tool for the development of new treatment strategies for this lymphoma entity.

Belantamab mafodotin, a B-cell maturation antigen (BCMA)-targeted ADC, has shown response rates >30% in a phase 2 trial of highly refractory patients and is being investigated in a variety of settings and combinations...This is an area of active preclinical research at this time. Lastly, designed ankyrin repeat proteins, which are small antibody-mimetic proteins with high target-binding affinity, have the potential to block multiple pathways at once and provide stimulatory signals to the immune system.

STRO-001 is the first ADC generated with novel cell-free protein synthesis technology and site-specific conjugation to be tested in the clinic. STRO-001 has been well-tolerated. No ocular or neuropathy toxicity signals have been observed and the MTD has not been reached.

Future expansion of this methodology into other cellular therapies (CAR NK or BiTE) and the examination of new data sources could reveal additional targets with robust expression in AML. Demonstration of cell surface expression of these targets, and appropriate preclinical evidence of efficacy, could lay the groundwork for quickly moving these therapies to clinical trials in AML.

The vast majority of lymphomas expressed CD74, including Hodgkin lymphomas (98%), B-cell lymphomas (96%), extranodal NK/T cell lymphomas (88%), mature T-cell lymphomas (80%) and plasma cell myeloma (75%). Our findings confirm and expand previous observations regarding the expression of CD74 and suggest that CD74 expression on tumor cells may be directly targeted for immunomodulatory therapy for lymphoid and plasma cell malignancies.