ADC Therapeutics to Host First Quarter 2021 Financial Results Conference Call on

ADC Therapeutics to Host First Quarter 2021

Financial Results Conference Call on May 6, 2021

Lausanne, Switzerland, April 29, 2021 - ADC Therapeutics

SA (NYSE: ADCT), a commercial-stage biotechnology company leading the development of novel antibody drug conjugates (ADCs) to treat hematological

malignancies and solid tumors, today announced that it will host a conference call and live webcast on Thursday, May 6, 2021 at 8:30 a.m.

EDT to report financial results for the first quarter 2021 and provide business updates.

To access the live call, please dial 888-771-4371 (domestic) or +1

847-585-4405 (international) and provide confirmation number 50158735. A live webcast of the presentation will be available under

"Events and Presentations" in the Investors section of the ADC Therapeutics website at ir.adctherapeutics.com.

The archived webcast will be available for 30 days following the call.

About ADC Therapeutics

ADC Therapeutics (NYSE: ADCT) is a commercial-stage biotechnology company

improving the lives of cancer patients 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 late-stage clinical trials in combination with other agents. Cami (camidanlumab tesirine) is

being evaluated in a late-stage clinical 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, the Company has multiple PBD-based ADCs in ongoing clinical and preclinical development.

ADC Therapeutics is based in Lausanne (Biop le), 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 trademark of ADC Therapeutics SA.

Tel.: +44 7879 627205

Tel.: +1 917 288 7023

Tel: +41 (0) 43 268 3231

Tel.: +1 973-768-2170