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Our Company

Driven by our dedication to improving outcomes in difficult-to-treat cancers, we are leading the development and commercialization of next-generation antibody drug conjugates (ADCs) with highly potent and targeted pyrrolobenzodiazepine (PBD) dimer technology.


Our Science

Advancing antibody drug conjugates with a novel class of PBD dimers


Our Pipeline

A robust pipeline of investigational ADCs for the treatment of hematological cancers and solid tumors


Our Trials

Take a closer look at the LOTIS study designs


Recent Data

Explore the latest research from our scientists

Preclinical investigation of ADCT-242, a novel exatecan-based antibody drug conjugate targeting Claudin-6, as single agent or in combination in ovarian and non-small lung cancer models

AACR, 2025

Preclinical development of ADCT-241, a novel exatecan-based antibody-drug conjugate targeting PSMA for the treatment of prostate cancer

AACR, 2025

HuB14-VA-PL2202, a novel antibody-drug conjugate targeting ASCT2, a novel ADC target over-expressed in both solid and hematological cancers

AACR, 2025

Loncastuximab Tesirine with Rituximab Induces Robust and Durable Complete Metabolic Responses in High-Risk Relapsed/Refractory Follicular Lymphoma

ASH, 2024
Independent Investigator-Initiated Trial

Limited Duration Loncastuximab Tesirine Induces a High Rate of Complete Responses in Patients with Relapsed/Refractory Marginal Zone Lymphoma – Report of First Planned Interim Futility Analysis of a Multicenter Phase II Study

ASH, 2024
Independent Investigator-Initiated Trial

Loncastuximab Tesirine in Combination with Venetoclax Is Safe and Shows Efficacy in Patients with Relapsed/Refractory Non Hodgkin Lymphoma

ASH, 2024
Independent Investigator-Initiated Trial

A phase II trial of loncastuximab tesirine in patients with previously treated Waldenström macroglobulinemia

ASH, 2024
Independent Investigator-Initiated Trial

Phase 1b Open-Label Study of Loncastuximab Tesirine in Combination With Other Anticancer Agents in Patients With Relapsed/Refractory B-cell Non-Hodgkin Lymphoma (LOTIS-7)

SOHO, 2024

LOTIS-5, an Ongoing, Phase 3, Randomized Study of Loncastuximab Tesirine With Rituximab (Lonca-R) Versus Immunochemotherapy in Patients With R/R DLBCL

ASCO, 2024

Quantitative systems pharmacology (QSP) model to predict combination activity of CD19-targeted antibody drug conjugate (loncastuximab tesirine) co-dosed with a CD20/CD3 T-cell bispecific (epcoritamab) in patients with diffuse large B-cell lymphoma (DLBCL)

ASCO, 2024

Quantitative systems pharmacology modeling of loncastuximab tesirine combined with mosunetuzumab and glofitamab helps guide dosing for patients with DLBCL

AACR, 2024

Updated Results of the Safety Run-In of the Phase 3 LOTIS-5 Trial: Novel Combination of Loncastuximab Tesirine With Rituximab (Lonca-R) Versus Immunochemotherapy in Patients With R/R DLBCL

SOHO, 2023



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Our Company

Driven by our dedication to improving outcomes in difficult-to-treat cancers, we are leading the development and commercialization of next-generation antibody drug conjugates (ADCs) with highly potent and targeted pyrrolobenzodiazepine (PBD) dimer technology.

Read and download our brochure

Our Science

Advancing antibody drug conjugates with a novel class of PBD dimersADC Therapeutics’ proprietary ADCs are highly targeted drug constructs that combine monoclonal antibodies specific to surface tumor targets with a novel class of highly potent PBD-dimer toxins.PBD dimers do not distort the DNA structure, which makes them invisible to repair mechanisms and allows the cross-links to persist within the DNA.
Unlike earlier generation PBD chemistry, ADC Therapeutics’ proprietary PBD dimers are not a substrate for multi-drug resistance proteins—even in hard-to-treat tumors.
Our PBD-dimer technology: A novel approach to hematologic cancers and solid tumors

  • 1The antibody drug conjugate (ADC) binds to a specific tumor cell surface antigen and is internalized1,2
  • 2The potent pyrrolobenzodiazepine (PBD) dimer toxin is released inside the cell, where it then creates a covalent cross-link between the strands of the DNA double helix2,3
  • 3Because these cross-links do not distort the DNA structure, it is hypothesized that they remain invisible to repair mechanisms and can covertly persist to interrupt cell division and cause tumor cell death1-3

Watch an MOA video about our first approved ADC, loncastuximab tesirine-lpyl (2:32)

Our Pipeline

A robust pipeline of investigational ADCs for the treatment of hematological cancers and solid tumorsADCT has multiple PBD-based ADCs in ongoing clinical trials and numerous preclinical ADCs in development.Some of the agents represented in this pipeline chart are investigational. Efficacy and safety have not yet been established.

* LOTIS-6 trial currently on hold

Expand each compound to learn more.

LONCASTUXIMAB TESIRINE-lpyl

Loncastuximab tesirine-lpyl is an ADC composed of a humanized monoclonal antibody that binds to human CD19 and is conjugated through a linker to a PBD–dimer toxin. CD19 is a clinically validated target for the treatment of B-cell malignancies.

adct-602

ADCT-602 is an ADC composed of a monoclonal antibody that binds to CD22 conjugated to a PBD-dimer toxin. CD22 is highly expressed on most malignant B-cells, including expression in more than 90% of patients with B-cell acute lymphoblastic leukemia (ALL). ADCT-602 is being evaluated in a phase I/II clinical trial in patients with relapsed or refractory B-cell ALL.

adct-601

ADCT-601 is an ADC composed of a humanized monoclonal antibody that binds to human AXL (licensed from BerGenBio), conjugated using Glycoconnect™ technology (licensed from Synaffix BV) to a linker with a PBD-dimer toxin. AXL is highly overexpressed in many solid tumors and hematological malignancies. ADCT-601 is being evaluated in a phase 1 clinical trial in patients with selected advanced solid tumors.

Learn more about our pipeline

Our Trials

Take a closer look at the LOTIS study designs

Recent Data

Explore the latest research from our scientists

Preclinical investigation of ADCT-242, a novel exatecan-based antibody drug conjugate targeting Claudin-6, as single agent or in combination in ovarian and non-small lung cancer models
AACR, 2025
View Abstract
Preclinical development of ADCT-241, a novel exatecan-based antibody-drug conjugate targeting PSMA for the treatment of prostate cancer
AACR, 2025
View Abstract
HuB14-VA-PL2202, a novel antibody-drug conjugate targeting ASCT2, a novel ADC target over-expressed in both solid and hematological cancers
AACR, 2025
View Abstract
Loncastuximab Tesirine with Rituximab Induces Robust and Durable Complete Metabolic Responses in High-Risk Relapsed/Refractory Follicular Lymphoma
ASH, 2024
Independent Investigator-Initiated Trial

View Abstract
Limited Duration Loncastuximab Tesirine Induces a High Rate of Complete Responses in Patients with Relapsed/Refractory Marginal Zone Lymphoma – Report of First Planned Interim Futility Analysis of a Multicenter Phase II Study
ASH, 2024
Independent Investigator-Initiated Trial

View Abstract
Loncastuximab Tesirine in Combination with Venetoclax Is Safe and Shows Efficacy in Patients with Relapsed/Refractory Non Hodgkin Lymphoma
ASH, 2024
Independent Investigator-Initiated Trial

View Abstract
A phase II trial of loncastuximab tesirine in patients with previously treated Waldenström macroglobulinemia
ASH, 2024
Independent Investigator-Initiated Trial

View Abstract
Phase 1b Open-Label Study of Loncastuximab Tesirine in Combination With Other Anticancer Agents in Patients With Relapsed/Refractory B-cell Non-Hodgkin Lymphoma (LOTIS-7)
SOHO, 2024
View Abstract
LOTIS-5, an Ongoing, Phase 3, Randomized Study of Loncastuximab Tesirine With Rituximab (Lonca-R) Versus Immunochemotherapy in Patients With R/R DLBCL
ASCO, 2024

View Abstract
Quantitative systems pharmacology (QSP) model to predict combination activity of CD19-targeted antibody drug conjugate (loncastuximab tesirine) co-dosed with a CD20/CD3 T-cell bispecific (epcoritamab) in patients with diffuse large B-cell lymphoma (DLBCL)
ASCO, 2024

View Abstract
Quantitative systems pharmacology modeling of loncastuximab tesirine combined with mosunetuzumab and glofitamab helps guide dosing for patients with DLBCL
AACR, 2024

View Abstract
Updated Results of the Safety Run-In of the Phase 3 LOTIS-5 Trial: Novel Combination of Loncastuximab Tesirine With Rituximab (Lonca-R) Versus Immunochemotherapy in Patients With R/R DLBCL
SOHO, 2023

View Abstract