ADC Therapeutics Doses First Patient in Phase 1b Clinical Trial of ZYNLONTA® (loncastuximab tesirine-lpyl) in Combination with Other Anti-cancer Agents

Opportunity to enhance outcomes in patients with relapsed or refractory B-cell non-Hodgkin lymphoma

First arm of trial to evaluate ZYNLONTA in combination with polatuzumab vedotin

LAUSANNE, Switzerland–(BUSINESS WIRE)–ADC Therapeutics SA (NYSE: ADCT) today announced the first patient has been dosed in LOTIS-7, a Phase 1b clinical trial evaluating ZYNLONTA® in combination with other anti-cancer agents in patients with relapsed or refractory B-cell non-Hodgkin lymphoma.

“As ZYNLONTA has been shown in preclinical studies to have synergistic or additive effects when combined with other anti-cancer therapies, we are eager to explore the potential of our differentiated CD19-directed ADC in combination with other established therapies,” said Joseph Camardo, MD, Chief Medical Officer of ADC Therapeutics. “We are excited by the opportunity to allow more lymphoma patients to achieve a response and benefit from the new combinations we are evaluating in LOTIS-7.”

The first arm of the LOTIS-7 open-label, multi-center, multi-arm Phase 1b trial will evaluate the safety and activity of ZYNLONTA in combination with polatuzumab vedotin in patients with relapsed or refractory B-cell non-Hodgkin lymphoma, including diffuse large B-cell lymphoma, high grade B-cell lymphoma, follicular lymphoma, mantle cell lymphoma, marginal zone lymphoma, and Burkitt lymphoma. The trial will include multiple arms in two parts – a dose escalation part and a dose expansion part. For more information about the LOTIS-7 trial, please visit www.clinicaltrials.gov (identifier NCT04970901).

ZYNLONTA is also being evaluated in the LOTIS clinical trial program as a therapeutic option in combination studies in other B-cell malignancies and earlier lines of therapy. For more information about the LOTIS trials, please visit https://www.adctherapeutics.com/our-pipeline/#lonca.

About ZYNLONTA® (loncastuximab tesirine-lpyl)

ZYNLONTA® is a CD19-directed antibody drug conjugate (ADC). Once bound to a CD19-expressing cell, ZYNLONTA is internalized by the cell, where enzymes release a pyrrolobenzodiazepine (PBD) payload. The potent payload binds to DNA minor groove with little distortion, remaining less visible to DNA repair mechanisms. This ultimately results in cell cycle arrest and tumor cell death.

The U.S. Food and Drug Administration (FDA) has approved ZYNLONTA (loncastuximab tesirine-lpyl) for the treatment of adult patients with relapsed or refractory (r/r) large B-cell lymphoma after two or more lines of systemic therapy, including DLBCL not otherwise specified, DLBCL arising from low-grade lymphoma and also high-grade B-cell lymphoma. The trial included a broad spectrum of heavily pre-treated patients (median three prior lines of therapy) with difficult-to-treat disease, including patients who did not respond to first-line therapy, patients refractory to all prior lines of therapy, patients with double/triple hit genetics and patients who had stem cell transplant and CAR-T therapy prior to their treatment with ZYNLONTA. This indication is approved by the FDA under accelerated approval based on overall response rate and continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial.

ZYNLONTA is also being evaluated as a therapeutic option in combination studies in other B-cell malignancies and earlier lines of therapy.

About ADC Therapeutics

ADC Therapeutics (NYSE: ADCT) is a commercial-stage biotechnology company improving the lives of those affected by cancer with its next-generation, targeted antibody drug conjugates (ADCs). The Company is advancing its proprietary PBD-based ADC technology to transform the treatment paradigm for patients with hematologic malignancies and solid tumors.

ADC Therapeutics’ CD19-directed ADC ZYNLONTA (loncastuximab tesirine-lpyl) is approved by the FDA for the treatment of relapsed or refractory diffuse large b-cell lymphoma after two or more lines of systemic therapy. ZYNLONTA is also in development in combination with other agents. Cami (camidanlumab tesirine) is being evaluated in a pivotal Phase 2 trial for relapsed or refractory Hodgkin lymphoma and in a Phase 1b clinical trial for various advanced solid tumors. In addition to ZYNLONTA and Cami, ADC Therapeutics has multiple ADCs in ongoing clinical and preclinical development.

ADC Therapeutics is based in Lausanne (Biopôle), Switzerland and has operations in London, the San Francisco Bay Area and New Jersey. For more information, please visit https://adctherapeutics.com/ and follow the Company on Twitter and LinkedIn.

ZYNLONTA® is a registered trademark of ADC Therapeutics SA.

Forward-Looking Statements

This press release contains statements that constitute forward-looking statements. All statements other than statements of historical facts contained in this press release, including statements regarding our future results of operations and financial position, business and commercialization strategy, market opportunities, products and product candidates, research pipeline, ongoing and planned preclinical studies and clinical trials, regulatory submissions and approvals, projected revenues and expenses and the timing of revenues and expenses, timing and likelihood of success, as well as plans and objectives of management for future operations, are forward-looking statements. Forward-looking statements are based on our management’s beliefs and assumptions and on information currently available to our management. Such statements are subject to risks and uncertainties, and actual results may differ materially from those expressed or implied in the forward-looking statements due to various factors, including those described in our filings with the U.S. Securities and Exchange Commission. No assurance can be given that such future results will be achieved. Such forward-looking statements contained in this document speak only as of the date of this press release. We expressly disclaim any obligation or undertaking to update these forward-looking statements contained in this press release to reflect any change in our expectations or any change in events, conditions, or circumstances on which such statements are based unless required to do so by applicable law. No representations or warranties (expressed or implied) are made about the accuracy of any such forward-looking statements.

Contacts

Investors
Eugenia Litz

ADC Therapeutics

[email protected]
+44 7879 627205

Amanda Hamilton

ADC Therapeutics

[email protected]
+1 917-288-7023

Media
Mary Ann Ondish

ADC Therapeutics

[email protected]
Tel.: +1 914-552-4625