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ADC Therapeutics Reports Fourth Quarter and Full Year 2024 Financial Results and Provides Operational Update

In This Article:

Initial data from LOTIS-7 Phase 1b trial of ZYNLONTA® plus glofitamab demonstrated clinically meaningful benefit with 94% best ORR and 72% CR rate; data update expected in second quarter 2025

Completed enrollment in LOTIS-5 Phase 3 confirmatory trial of ZYNLONTA plus rituximab in patients with 2L+ DLBCL; data update anticipated in late 2025 once PFS events reached

$250.9M in cash as of December 31, 2024, provides runway expected to fund operations into the second half of 2026

Company to host conference call today at 8:30 a.m. EDT

LAUSANNE, Switzerland, March 27, 2025 /PRNewswire/ -- ADC Therapeutics SA (NYSE: ADCT), a commercial-stage global leader and pioneer in the field of antibody drug conjugates (ADCs), today reported financial results for the fourth quarter and full year ended December 31, 2024, and provided recent operational updates.

ADC Therapeutics logo (PRNewsfoto/ADC Therapeutics SA)
ADC Therapeutics logo (PRNewsfoto/ADC Therapeutics SA)

"We achieved several key milestones in 2024, advancing our expansion trials with ZYNLONTA® in combinations and in earlier lines of DLBCL therapy, progressing our early research solid tumor program to the IND-enabling stage and reducing operational spend while at the same time strengthening the balance sheet," said Ameet Mallik, Chief Executive Officer of ADC Therapeutics. "We closed the year by fully enrolling our confirmatory LOTIS-5 DLBCL study, reported encouraging initial data from our LOTIS-7 DLBCL study and were pleased to see promising Phase 2 IIT data evaluating ZYNLONTA in indolent lymphomas reported at the American Society of Hematology annual meeting. We are confident in our path forward and believe we are well positioned for success as we progress toward additional pivotal milestones in 2025."

Fourth Quarter 2024 Operational Updates and Upcoming Milestones

  • Full enrollment achieved in LOTIS-5. Enrollment for the Phase 3 confirmatory trial evaluating ZYNLONTA in combination with rituximab in patients with relapsed or refractory (r/r) diffuse large B-cell lymphoma (DLBCL) was completed in December 2024. The Company expects to provide updated data before the end of 2025, once the pre-specified number of progression-free survival (PFS) events is reached.

  • Encouraging initial data from LOTIS-7. The Company reported positive initial data in December 2024 from the LOTIS-7 Phase 1b open-label clinical trial evaluating the safety and efficacy of ZYNLONTA in combination with the bispecific antibody glofitamab (COLUMVI™) in patients with r/r non-Hodgkin Lymphoma (NHL). The best overall response rate (ORR) among the 18 r/r DLBCL efficacy evaluable patients was 94%, and the complete response rate (CRR) was 72%. These encouraging efficacy data were observed across patients with different numbers of lines and types of prior treatments. Initial safety data on all 29 patients with r/r NHL suggest the combination is generally well tolerated with no dose-limiting toxicities across all dose levels. Enrollment of 40 patients in the dose expansion is expected to be completed in the second quarter of 2025. We expect to share data on a subset of patients in the second quarter of 2025 with a fuller, more mature data update anticipated during the second half of 2025.

  • Promising data from the Phase 2 investigator-initiated trials evaluating ZYNLONTA in indolent lymphomas. Updated data from the investigator-initiated trials (IITs) of ZYNLONTA were presented at the 66th American Society of Hematology (ASH) Annual Meeting 2024. Both the Phase 2 clinical trial evaluating ZYNLONTA in combination with rituximab in patients with r/r follicular lymphoma (FL) and the Phase 2 clinical trial evaluating ZYNLONTA for the treatment of r/r marginal zone lymphoma (MZL) are ongoing and being conducted at the Sylvester Comprehensive Cancer Center at the University of Miami Miller School of Medicine. Results from both trials as presented at ASH and the FL trial simultaneously published in The Lancet Haematology can be found here. Additional data are expected to be shared at a medical conference and/or in publication with plans to engage regulatory agencies and evaluate compendia strategies.

  • Abstracts to be presented in oral and poster presentations in April at AACR 2025. An abstract on the Company's Claudin-6 targeting ADC was accepted for oral presentation at the American Association for Cancer Research (AACR) Annual Meeting 2025. Abstracts on the Company's PSMA and ASCT2-targeting ADCs were also accepted for poster presentations at the meeting.