ADC Therapeutics : Form6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2021.

Commission File Number: 001-39071

ADC Therapeutics SA

(Exact name of registrant as specified in its charter)

Biopôle

Route de la Corniche 3B

1066 Epalinges

Switzerland

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F

☒

Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

ADC Therapeutics SA
Date: January 7, 2021
By:	/s/ Michael Forer
Name:	Michael Forer
Title:	Executive Vice President & General Counsel

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press release dated January 7, 2021

Exhibit 99.1

ADC Therapeutics Initiates Expanded Access Program for Loncastuximab Tesirine in the U.S.

Lausanne, Switzerland, January 7, 2020 - ADC Therapeutics SA (NYSE:ADCT), a late clinical-stageoncology-focused biotechnology company pioneering the development and commercialization of highly potent and targeted antibody drug conjugates (ADCs) for patients with hematological malignancies and solid tumors, announced today the initiation of an expanded access program (EAP) for loncastuximab tesirine (Lonca, formerly ADCT-402) for patients in the U.S. with relapsed or refractory diffuse large B-cell lymphoma (DLBCL). The EAP is for patients who cannot be treated by currently available drugs, cell therapy, or clinical trials.

"We are pleased to offer an expanded access program for Lonca in the U.S., which will enable access to the therapy for eligible patients with relapsed or refractory DLBCL," said Jay Feingold, MD, PhD, Senior Vice President and Chief Medical Officer of ADC Therapeutics. "This program reflects ADC Therapeutics' commitment to confronting cancer with the full potential of our science and bringing unique, targeted therapies and hope to patients and their families."

Lonca is an investigational agent for which safety and efficacy have not yet been established. A Biologics License Application for Lonca for the treatment of relapsed or refractory DLBCL is currently under review with the U.S. Food and Drug Administration (FDA) and has been granted priority review status. The FDA has set a Prescription Drug User Fee Act target date of May 21, 2021.

To qualify for the Lonca EAP, patients with relapsed or refractory DLBCL are required to meet certain inclusion / exclusion criteria. Requests for expanded access to Lonca must be made by a licensed, treating physician in the U.S.

For more information about the Lonca EAP, please visit https://adctherapeutics.com/expanded-access-program/. For inquiries about the Lonca EAP, please contact [e-mail].

About Loncastuximab Tesirine

Loncastuximab tesirine (Lonca, formerly ADCT-402) is an antibody drug conjugate (ADC) composed of a humanized monoclonal antibody directed against human CD19 and conjugated through a linker to a pyrrolobenzodiazepine (PBD) dimer cytotoxin. Once bound to a CD19-expressing cell, Lonca is designed to be internalized by the cell, following which the warhead is released. The warhead is designed to bind irreversibly to DNA to create highly potent interstrand cross-links that block DNA strand separation, thus disrupting essential DNA metabolic processes such as replication and ultimately resulting in cell death. CD19 is a clinically validated target for the treatment of B-cell malignancies.

A Biologics License Application for Lonca for the treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL) is currently under review with the U.S. Food and Drug Administration (FDA) and has been granted priority review status. The FDA has set a Prescription Drug User Fee Act target date of May 21, 2021. Lonca is being evaluated in LOTIS 3, a Phase 1/2 clinical trial in combination with ibrutinib in patients with relapsed or refractory DLBCL or mantle cell lymphoma, and LOTIS 5, a Phase 3 confirmatory clinical trial in combination with rituximab in patients with relapsed or refractory DLBCL.