Today: January 19, 2019, 5:29 pm

ADC Therapeutics Announces Presentations at the Society for Immunotherapy of Cancer’s (SITC) 33rd Annual Meeting 2018-11-08 13:31:01

Potential new immune-oncology therapy uses antibody drug conjugate (ADC) that targets regulatory T cells (Tregs)

Highly potent anti-tumor activity of CD25-targeted ADC demonstrated in preclinical solid tumor models both as monotherapy and in combination with a PD-1 inhibitor

Company plans to initiate Phase Ib clinical trial to evaluate safety, tolerability and preliminary anti-tumor activity of ADCT-301 (camidanlumab tesirine) in patients with advanced solid tumors

LAUSANNE, Switzerland, Nov. 08, 2018 (GLOBE NEWSWIRE) -- ADC Therapeutics, an oncology drug discovery and development company that specializes in the development of proprietary antibody drug conjugates (ADCs), today announced it will present two posters highlighting preclinical data and the Phase Ib clinical trial design for ADCT-301 (camidanlumab tesirine) in advanced solid tumors at the Society for Immunotherapy of Cancer’s (SITC) 33rd Annual Meeting, which is being held November 7-11 in Washington, DC.

Jay Feingold, MD, PhD, Chief Medical Officer and Senior Vice President of Clinical Development at ADC Therapeutics, said, “ADCT-301 is already being evaluated in relapsed and refractory Hodgkin lymphoma, and at the 2018 American Society of Hematology (ASH) Annual Meeting we will be updating our abstract data from June, at which time we had an overall response rate of 80.8 percent with a complete response rate of 50 percent in median 6th line patients. Based on the immune-oncology potential ADCT-301 demonstrated in preclinical studies, we are excited to be starting a clinical trial for ADCT-301 in solid tumors to see if we can make an impact and improve patient outcomes in multiple solid tumor cancers.”

Patrick van Berkel, PhD, Senior Vice President of Research and Development at ADC Therapeutics, said, “ADCT-301 targets CD25, which is expressed on Tregs that infiltrate the local tumor environment.  In preclinical models, a single dose of the CD25-targeted ADC induced strong and durable anti-tumor activity against established CD25 negative solid tumors with infiltrating Tregs. Moreover, re-challenged mice did not develop new tumors indicating the CD25-targeted ADC was able to induce tumor-specific protective immunity.”

ADC Therapeutics’ posters will be located in Poster Hall E in the Walter E. Washington Convention Center. The Poster Hall will be open Friday, November 9 from 8 a.m. to 8 p.m. and Saturday, November 10 from 8 a.m. to 8:30 p.m. EST. Details of the posters are below.

Abstract Poster Number: P11
Title: A CD25 targeted pyrrolobenzodiazepine dimer-based antibody-drug conjugate shows potent anti-tumor activity in pre-clinical models of solid tumors either alone or in combination with a PD-1 inhibitor
Presentation Date and Time: Friday, November 9, 12:45-2:15 p.m. and 6:30-8 p.m. EST
Presenter: Francesca Zammarchi, PhD, ADC Therapeutics

Abstract Poster Number: P316
Title: Phase 1b dose-escalation and dose-expansion study to evaluate safety, tolerability, pharmacokinetics, and antitumor activity of ADCT-301 (camidanlumab tesirine) in patients with advanced solid tumors
Presentation Date and Time: Saturday, November 10, 12:20-1:50 p.m. and 7-8:30 p.m. EST
Presenter: Francesca Zammarchi, PhD, ADC Therapeutics

For more information about the SITC 2018 Annual Meeting, please visit

About ADCT-301

ADCT-301 (camidanlumab tesirine) is an antibody drug conjugate (ADC) composed of a monoclonal antibody that binds to CD25 (HuMax®-TAC, licensed from Genmab A/S), conjugated to the pyrrolobenzodiazepine (PBD) dimer payload tesirine. Once bound to a CD25-expresing cell, ADCT-301 is internalized into the cell where enzymes release the PBD-based warhead. The intra-tumor release of its PBD warhead may cause bystander killing of neighboring tumor cells. In addition, the PBD warhead will trigger immunogenic cell death, which in turn will strengthen the immune response against tumor cells. ADCT-301 is being evaluated in a Phase Ib clinical trial in solid tumors (NCT03621982), as well as ongoing Phase Ia/Ib clinical trials in patients with relapsed or refractory Hodgkin lymphoma and non-Hodgkin lymphoma (NCT02432235).

About ADC Therapeutics

ADC Therapeutics SA 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 ADCs in ongoing clinical trials in the USA and Europe, and a deep pipeline of other preclinical ADCs in development. ADCT has 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. For more information, visit

Investors Contact                                           
Dr. Chris Martin                                                               
Chief Executive Officer                        
Tel.: +41 (0) 21 653 0200                  

EU Media Contact          
Alexandre Müller           
Dynamics Group      
Tel: +41 (0) 43 268 3231          

USA Media Contact
Tony Plohoros
6 Degrees
Tel.: +1 908-591-2839        

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