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

ADC Therapeutics to Host Second Quarter 2021

Financial Results Conference Call on August 3,

Lausanne, Switzerland, July 28, 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 Tuesday,

August 3, 2021 at 8:30 a.m. EDT to report financial results for the second quarter 2021 and provide business updates.

To access the live call, please dial 833-303-1198

(domestic) or +1 914-987-7415 (international) and provide confirmation number 6962756. 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

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 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