Press Release Details

ADC Therapeutics to Present Two New Investigational Antibody-Drug Conjugates at the American Association for Cancer Research (AACR) Annual Meeting

April 11, 2018

Lausanne, Switzerland, April 11, 2018 – ADC Therapeutics (ADCT), an oncology drug discovery and development company that specializes in the development of proprietary Antibody Drug Conjugates (ADCs) targeting major cancers, today announced its presence at the Annual Meeting of the American Association for Cancer Research (AACR) taking place April 14-18, 2018 in Chicago, USA. Two poster presentations will highlight strong preclinical data for its two new investigational programs ADCT-601 targeting AXL and ADCT-701 targeting DLK-1. In addition, Dr. Jaewoong Lee, of The Beckman Institute of the City of Hope will make an oral presentation on novel preclinical data for ADCT-301 targeting CD25.

“Our two new investigational programs show compelling efficacy and safety in preclinical studies,” said Dr. Jay Feingold, Chief Medical Officer and Senior Vice President of Clinical Development at ADCT. “These results provide an important step to advance ADCT-601 and ADCT-701 into the clinic and enlarge our pipeline of PBD-based ADCs in multiple ongoing clinical trials for the treatment of both solid and hematological cancers.”

Poster titles and highlights of the data that will be presented are available on the AACR conference website at www.aacr.org and include the following:

ADCT-701, a novel pyrrolobenzodiazepine (PBD) dimer-based antibody-drug conjugate (ADC) targeting DLK1-expressing tumors

Abstract #744, April 15, 1:00 pm – 5:00 pm CT

  • ADCT-701 is an ADC composed of a humanized IgG1 antibody against human DLK1, site-specifically conjugated using GlycoConnectTM technology to PL1601, which contains a valine-alanine cleavable linker and the PBD dimer cytotoxin SG3199.
  • ADCT-701 demonstrated potent and specific in vitro and in vivo anti-tumor activity in DLK1-expressing cancer-derived models and it was stable and well tolerated in rats.

Preclinical activity of ADCT-601, a novel pyrrolobenzodiazepine (PBD) dimer-based antibody-drug conjugate (ADC) targeting AXL-expressing tumors

Abstract #2792A, April 16, 1:00 pm – 5:00 pm CT

  • ADCT-601 is an ADC composed of a humanized IgG1 antibody against human AXL, site-specifically conjugated using GlycoConnectTM technology to PL1601, which contains a valine-alanine cleavable linker and the PBD dimer cytotoxin SG3199.
  • ADCT-601 demonstrated potent and specific in vitro and in vivo anti-tumor activity in various cancer-derived models with different levels of membranous AXL, and it was stable and well tolerated in rats.

CD25 enables oncogenic BCR- and TCR-signaling and represents a therapeutic target in lymphoblastic malignancies

Abstract #2983, April 16, 2018, 4:05 PM – 4:20 PM

  • Novel data identifies CD25 as a previously unrecognized feedback regulator of oncogenic B/TCR-signaling supporting CD25 as a therapeutic target in refractory lymphoid malignancies.
  • ADCT-301 demonstrated durable remissions in patient-derived Ph+ ALL cells PDX models

About ADC Therapeutics

ADC Therapeutics SA (ADCT) is an oncology drug discovery and development company that specializes in the development of proprietary antibody drug conjugates (ADCs) targeting major hematological malignancies and solid tumors. The Company’s ADCs are highly targeted biopharmaceutical drugs that combine monoclonal antibodies specific to surface antigens present on particular tumor cells with a novel class of highly potent pyrrolobenzodiazepine (PBD) based warheads via a chemical linker. The Company has multiple PBD-based antibody drug conjugates in ongoing clinical trials in the USA and Europe, and a deep pipeline of other preclinical ADCs in development. ADCT enjoys strong relationships with world class partners, including AstraZeneca and its global biologics research and development arm, MedImmune. The Company is based in Lausanne (Biopôle), Switzerland and has operations in London, San Francisco and New Jersey. (www.adctherapeutics.com).

For more information please contact:

Dr. Chris Martin
Chief Executive Officer
chris.martin@adctherapeutics.com
Tel.: +41 (0) 21 653 0200

Alexandre Müller
Dynamics Group
amu@dynamicsgroup.ch
Tel: +41 (0) 43 268 3231