Core Insights - ADC Therapeutics announced updated Phase 2 data for ZYNLONTA® showing an overall response rate (ORR) of 85% and a complete response (CR) rate of 69% in patients with relapsed/refractory marginal zone lymphoma (r/r MZL) [1][2] - The treatment was well tolerated, with safety profiles consistent with previous data [2][6] - The study is ongoing, with plans to expand enrollment to 50 patients across multiple sites [3][4] Study Details - The Phase 2 trial is a single-arm, open-label study led by Dr. Izidore S. Lossos at Sylvester Comprehensive Cancer Center [1][3] - As of February 10, 2025, 27 adult patients were enrolled, with 26 evaluable for response [2] - Among patients assessed for response, a CR rate of 61.5% was observed in high-risk POD24 patients [6] Efficacy and Safety - The longest duration of CR was 27 months from the start of treatment, with a progression-free survival (PFS) rate of 92.9% at 12 months [6] - Adverse events were consistent with the known safety profile of ZYNLONTA, with most being grade 1 or 2 [6] - Serious adverse events included neutropenia and RSV lung infection, with some patients requiring dose reductions [6] Regulatory and Future Plans - ZYNLONTA has received accelerated approval from the FDA and conditional approval from the European Medicines Agency for treating r/r large B-cell lymphoma [7][10] - The company plans to pursue regulatory pathways based on the ongoing trial results [4] - ZYNLONTA is also being evaluated in combination studies for other B-cell malignancies [8][10] Company Overview - ADC Therapeutics is a biotechnology company focused on developing targeted antibody drug conjugates (ADCs) for cancer treatment [9][10] - The company is based in Lausanne, Switzerland, with operations in London and New Jersey [11]

Core Viewpoint - ADC Therapeutics has announced a $100 million PIPE financing to support the development and commercialization of its ADC product ZYNLONTA and other strategic initiatives [1][2]. Financing Details - The PIPE involves the sale of 13 million common shares at $3.53 each and pre-funded warrants for 15.7 million common shares at $3.43 each, with gross proceeds expected to be approximately $100 million before fees [1][2]. - The financing is set to close on June 16, 2025, pending customary conditions [2]. Use of Proceeds - The net proceeds from the PIPE will be utilized for ZYNLONTA's clinical development, commercialization activities, working capital, and general corporate purposes [2]. Strategic Developments - The company will advance its preclinical exatecan-based ADC targeting prostate-specific membrane antigen (PSMA) while discontinuing other preclinical solid tumor programs [3]. - A workforce reduction of approximately 30% is planned, with the majority of this restructuring expected to be completed by September 30, 2025, incurring one-time cash charges of $6 to $7 million [3]. Long-term Growth Positioning - These strategic moves are anticipated to reduce operating expenses significantly and extend the company's cash runway into 2028 [4]. - Key anticipated catalysts include ongoing clinical trials such as LOTIS-7 and LOTIS-5, with significant data expected in the coming years [4][8]. Clinical Development Updates - LOTIS-7 Phase 1b trial data for ZYNLONTA plus glofitamab is expected in the second half of 2025, with full enrollment of 100 patients anticipated by the first half of 2026 [8]. - Topline results from the LOTIS-5 Phase 3 trial are expected in late 2025 or early 2026, with potential regulatory submissions following [8]. Company Overview - ADC Therapeutics is a leader in the field of antibody drug conjugates (ADCs), focusing on transforming treatment paradigms for hematologic malignancies and solid tumors [14][15].

Core Insights - ADC Therapeutics announced promising results from the LOTIS-7 Phase 1b trial, showing a 93.3% overall response rate (ORR) and an 86.7% complete response (CR) rate in patients with relapsed or refractory diffuse large B-cell lymphoma (r/r DLBCL) treated with ZYNLONTA® and glofitamab [1][3][4] Efficacy Data - Among 30 efficacy evaluable patients, 28 achieved an overall response, with 26 achieving complete responses [3] - 25 out of 26 patients who achieved CR remained in CR at the data cut-off [1][3] - Median time to CR was 80 days for the 120 µg/kg dose and 42 days for the 150 µg/kg dose [3] - 12 patients converted from stable disease or partial response to CR over time [3] - Of 6 patients previously treated with CAR-T, 5 achieved CR [3] Safety Profile - The combination treatment was generally well tolerated, with no dose-limiting toxicities (DLTs) reported [3] - Among 41 safety evaluable patients, the most common grade 3 or higher treatment-emergent adverse events (TEAEs) included neutropenia (24.4%), anemia (9.8%), and increased liver enzymes [3] - Cytokine release syndrome (CRS) was observed in 23.8% of patients at the 150 µg/kg dose, all Grade 1, while 55% experienced CRS at the 120 µg/kg dose [3] Study Expansion - The company is expanding enrollment for the LOTIS-7 trial to 100 patients at the 150 µg/kg dose of ZYNLONTA [1][4] - The updated data will be presented at the European Hematology Association 2025 Congress and the 18th International Conference on Malignant Lymphoma [4] About ZYNLONTA - ZYNLONTA is a CD19-directed antibody drug conjugate (ADC) approved for treating adult patients with r/r large B-cell lymphoma after two or more lines of systemic therapy [9][13] - The drug works by binding to CD19-expressing cells and delivering a potent payload that leads to tumor cell death [8]