Ardelyx Reports Third Quarter 2019 Financial Results and Recent Highlights

On November 6, 2019 Ardelyx, Inc. (Nasdaq: ARDX), a specialized biopharmaceutical company focused on developing first-in-class medicines to improve treatment choices for people with cardiorenal diseases, reported business highlights and financial results for the third quarter ended September 30, 2019 (Press release, Ardelyx, NOV 6, 2019, View Source [SID1234550520]).

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"The third quarter was particularly exciting with two transformational milestones occurring in rapid succession and serving as major catalysts for growth and momentum at Ardelyx," said Mike Raab, president and chief executive officer of Ardelyx. "First, we were pleased to report successful results from our Phase 3 AMPLIFY study for tenapanor in hyperphosphatemia, positioning us one step closer to submitting our New Drug Application to the FDA and potentially providing our drug broadly to patients in need. On the heels of that milestone, we announced the approval of IBSRELA. This approval marked a momentous achievement for Ardelyx as our first ever product approved and represented the culmination of more than a decade of diligent execution and commitment by our talented team. Importantly, these milestones propel us toward fulfilling our mission to bring innovative first-in-class medicines to improve treatments for patients in need."

Business and Pipeline Updates

In October 2019, Ardelyx hosted Analyst Day, the second of an anticipated annual event. The event featured Myles Wolf, M.D., chief of nephrology at Duke University, and the company’s new team of sales and marketing leaders. The event focused on the significant need to improve hyperphosphatemia management in patients on dialysis, challenges with today’s treatment options that are limited to phosphate binders, and the commercial strategy to bring tenapanor to market, if and when approved. A replay of the event is available on the Events and Presentations page under the investor relations section of Ardelyx’s website at www.ardelyx.com.
In September 2019, Ardelyx announced positive results from the pivotal Phase 3 AMPLIFY study evaluating tenapanor in dialysis patients who have uncontrolled hyperphosphatemia despite phosphate binder treatment. The AMPLIFY study met the primary and all key secondary endpoints, including demonstrating a statistically significant (p=0.0004) reduction in serum phosphorus levels for patients treated with tenapanor and phosphate binders compared to phosphate binders alone. Approximately two times more patients achieved the established serum phosphorus treatment goal of less than 5.5mg/dL in the tenapanor arm compared to binders alone (p -values≤0.0097) for each week of treatment.
In September 2019, Ardelyx received FDA approval for IBSRELA (tenapanor). The company continues discussions with potential strategic partners to market IBSRELA in the United States.
Upcoming Milestones

The company currently expects to announce results in the fourth quarter of 2019 from the PHREEDOM clinical trial, the company’s second Phase 3 clinical trial evaluating tenapanor as a monotherapy treatment for hyperphosphatemia in patients with chronic kidney disease (CKD) who are on dialysis.

Third Quarter 2019 Financial Results

Cash Position: As of September 30, 2019, Ardelyx had total capital resources including cash, cash equivalents and short-term investments of $103.5 million compared to total capital resources including cash, cash equivalents and short-term investments of $168.1 million as of December 31, 2018.
R&D Expenses: Research and development expenses were $17.5 million for the three months ended September 30, 2019, a decrease of $0.4 million, or 2 percent, compared to $17.9 million for the three months ended September 30, 2018. The decrease in expense was primarily related to reduction in the company’s manufacturing expense of tenapanor, a reduction in costs associated with the continued clinical development of tenapanor for the treatment of hyperphosphatemia in CKD patients on dialysis and a decrease in professional services, partially offset by an increase in expenses in the company’s hyperkalemia program, RDX013, an increase in headcount and related personnel costs and an increase in stock-based compensation expenses.
G&A Expenses: General and administrative expenses were $6.9 million for the three months ended September 30, 2019, an increase of $0.9 million, or 16 percent, compared to $6.0 million for the three months ended September 30, 2018. The increase was primarily related to an increase in stock-based compensation costs and an increase in professional services, partially offset by a decrease in personnel costs related to a one-time severance payment during the three months ended September 30, 2018.
Net Loss: Net loss for the three months ended September 30, 2019 was $23.5 million, or $0.37 per share, compared to a net loss of $24.1 million, or $0.39 per share, for the three months ended September 30, 2018.
Financial Guidance

Ardelyx maintains its expectation that its cash, cash equivalents and short-term investments are sufficient to fund the company’s operations until at least early 2021 based on its current operating plans.

Daiichi Sankyo Data at ASH Showcases Scientific and Clinical Advancements Across AML/Blood Cancer Portfolio

On November 6, 2019 Daiichi Sankyo Company, Limited (hereafter, Daiichi Sankyo) reported that it will present new data for several investigational therapies in its AML/blood cancer portfolio at the 61st Annual Meeting of the American Society of Hematology (ASH) (Free ASH Whitepaper), December 7-10, 2019, in Orlando, Florida (Press release, Daiichi Sankyo, NOV 6, 2019, https://www.businesswire.com/news/home/20191106005138/en/Daiichi-Sankyo-Data-ASH-Showcases-Scientific-Clinical [SID1234550534]).

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Highlights include three oral presentations featuring post-hoc analyses from the global, pivotal phase 3 QuANTUM-R study including post-transplant survival, genetic/biomarker-related responses and outcomes, and quality-adjusted time without symptoms or toxicity in patients with relapsed/refractory FLT3-ITD AML receiving quizartinib versus salvage chemotherapy.

"The additional findings from the phase 3 study will help inform clinical use as well as further development of quizartinib, which is currently being evaluated in newly-diagnosed FLT3-ITD AML in the QuANTUM-First trial," said Arnaud Lesegretain, Vice President, Oncology Research and Development and Head, AML Franchise, Daiichi Sankyo. "Other ASH (Free ASH Whitepaper) presentations reflect clinical development progress for several of our investigational therapies, including valemetostat, which is an important asset in our R&D program for patients with AML and other blood cancers."

Updated phase 1 study results will be reported for valemetostat, a potential first-in-class EZH1/2 dual inhibitor, in relapsed/refractory non-Hodgkin lymphomas (NHLs), including a subgroup analysis in patients with adult T-cell leukemia/lymphoma (ATL/L). A pivotal phase 2 study in patients with ATL/L is planned in Japan.

Following is a full list of abstracts from the Daiichi Sankyo oncology portfolio accepted at ASH (Free ASH Whitepaper):

ASH Abstract Title

Presentation Details

Quizartinib / QuANTUM-R

Clinical Outcomes and Characteristics of Patients with FLT3-ITD-Mutated Relapsed/Refractory (R/R) AML Undergoing Hematopoietic Stem Cell Transplantation (HSCT) after Quizartinib or Salvage Chemotherapy in the QuANTUM-R Trial

Abstract #736; Oral Presentation (Ganguly S)
Monday, December 9, 2019
Session 613: 2:45 – 4:15 PM (3:30 PM)
Tangerine 3, WF3-4

Effect of Co-Mutations and FLT3-ITD Variant Allele Frequency (VAF) on Response to Quizartinib or Salvage Chemotherapy (SC) in Relapsed/Refractory (R/R) Acute Myeloid Leukemia (AML)

Abstract #737; Oral Presentation (Perl A)
Monday, December 9, 2019
Session 613: 2:45 – 4:15 PM (3:45 PM)
Tangerine 3, WF3-4

Quality-Adjusted Time without Symptoms or Toxicity (Q-TWiST) Analysis of Quizartinib Vs. Salvage Chemotherapy in Patients with Relapsed/Refractory (R/R) FLT3-ITD AML

Abstract #382; Oral Presentation (Cortes J)
Sunday, December 8, 2019
Session 903: 7:30 – 9:30 AM (8:15 AM). W307

Pooled Safety Analysis of Quizartinib Monotherapy in Patients with Relapsed/Refractory (R/R) Acute Myeloid Leukemia (AML)

Abstract #1372; Poster Presentation (Cortes J)
Saturday, December 7, 2019
Session 616: Poster I, 5:30 – 7:30 PM. Hall B

Characterization of Response and Transfusion Independence in Patients with FLT3-ITD-Mutated Relapsed/Refractory AML Treated with Quizartinib or Salvage Chemotherapy in the QuANTUM-R Trial

Abstract #2599; Poster Presentation (Levis M)
Sunday, December 8, 2019
Session 613: Poster II, 6:00 – 8:00 PM. Hall B

Exposure-Response of Quizartinib Efficacy in Patients with Relapsed/Refractory AML

Abstract #1263; Poster Presentation (Kang D)
Saturday, December 7, 2019
Session 604: Poster I, 5:30 – 7:30 PM. Hall B

A Phase 1/2 Study of Quizartinib (Q) in Combination with Re-Induction Chemotherapy and As Single-Agent Continuation Therapy in Pediatric and Young Adult Patients with Relapsed/Refractory (R/R) FLT3-ITD AML

Abstract #3937; Poster Presentation (Zwaan M)
Monday, December 9, 2019
Session 616: TiP Poster III, 6:00 – 8:00 PM. Hall B

An Evaluation of Major Comorbidities and Treatment Patterns of Newly Diagnosed Acute Myeloid Leukemia Patients: A Retrospective Analysis of Electronic Medical Records from US

Abstract #5106; Publication Only (Tu N)

Valemetostat (DS-3201)

First-in-Human Study of the EZH1/2 Dual Inhibitor DS-3201b in Relapsed or Refractory Non-Hodgkin Lymphoma (NHL)— Interim Results Focusing on Adult T-Cell Leukemia-Lymphoma (ATL)

Abstract #4025; Poster Presentation (Morishima S)
Monday, December 9, 2019
Session 624: Poster III, 6:00 – 8:00 PM. Hall B

Anti-tumor Effect of the EZH1/2 Inhibitor Valemetostat Against Diffuse Large B-Cell Lymphoma via Modulation of B-cell Receptor Signaling and c-Myc Signaling Pathways (preclinical data)

Abstract #4642; Poster Presentation (Hama Y)
Monday, December 9, 2019
Session 802: Poster III, 6:00 – 8:00 PM. Hall B

Milademetan (DS-3032)

A Phase 1 Dose Escalation Study of Milademetan in Combination with 5-Azacitidine (AZA) in Patients with Acute Myeloid Leukemia (AML) or High-Risk Myelodysplastic Syndrome (MDS)

Abstract #3932; Poster Presentation (DiNardo C)
Monday, December 9, 2019
Session 616: Poster III, 6:00 – 8:00 PM. Hall B

A Phase I Study of Milademetan in Combination with Quizartinib in Patients with Newly Diagnosed (ND) or Relapsed/Refractory FLT3-ITD Acute Myeloid Leukemia (AML)

Abstract #1389; Poster Presentation (Daver N)
Saturday, December 7, 2019
Session 616: Poster I, 5:30 – 7:30 PM. Hall B

Dual Inhibition of MDM2 and XPO1 Induces Synergistic Apoptosis in Acute Myeloid Leukemia with Wild-type TP53 through Nuclear Accumulation of p53 and Suppression of c-Myc (preclinical data)

Poster Presentation (Nishida Y)
Sunday, December 8, 2019
Session 604: Poster II, 6:00 – 8:00 PM. Hall B

PLX2853

Dose Escalation Study of BET Inhibitor PLX2853 in Patients with Relapsed or Refractory Acute Myeloid Leukemia or High Risk Myelodysplastic Syndrome

Abstract #1391; Poster Presentation (Pemmaraju N)
Saturday, December 7, 2019
Session 616: Poster I, 5:30 – 7:30 PM. Hall B

A Novel Combination Regimen of BET and FLT3 Inhibition for FLT3-ITD Acute Myeloid Leukemia (preclinical)

Abstract #1373; Poster Presentation (Lee L)
Saturday, December 7, 2019
Session 616: Poster I, 5:30 – 7:30 PM. Hall B

Bromodomain and Extraterminal (BET) Domain Inhibition with PLX51107 and PLX2853 Improves Survival and Decreases Acute GVHD Severity in Murine Models (preclinical)

Abstract #4429; Poster Presentation (Choe H)
Monday, December 9, 2019
Session 701: Poster III, 6:00 – 8:00 PM. Hall B

About Quizartinib

Quizartinib, an oral FLT3 inhibitor, is the lead product in the AML Franchise of Daiichi Sankyo. Quizartinib currently is approved only for use in Japan under the brand name VANFLYTA for the treatment of adult patients with relapsed/refractory FLT3-ITD AML, as detected by an approved test. It was launched in Japan on October 10, 2019.

Enrollment into QuANTUM-First, a global, pivotal phase 3 study evaluating quizartinib in combination with standard chemotherapy in newly diagnosed FLT3-ITD AML was recently completed. Quizartinib is also in phase 1/2 development for pediatric and young adult relapsed/refractory FLT3-ITD AML in North America and Europe, and phase 1 development in combination with milademetan, an investigational MDM2 inhibitor, for relapsed/refractory FLT3-ITD AML and newly-diagnosed FLT3-ITD AML unfit for intensive chemotherapy in the U.S.

About Valemetostat

Valemetostat (DS-3201) is an investigational and potential first-in-class EZH1/2 dual inhibitor in phase 1 clinical development for hematologic cancers including acute myeloid leukemia (AML), acute lymphocytic leukemia (ALL), and non-Hodgkin lymphomas (NHLs) including adult T-cell leukemia/lymphoma (ATL/L), peripheral T-cell lymphoma (PTCL) and B-cell lymphomas. Valemetostat has received SAKIGAKE Designation for the treatment of adult patients with relapsed/refractory peripheral T-cell lymphoma (PTCL) by the Ministry of Health, Labour and Welfare (MHLW) in Japan.

About Milademetan

Milademetan (DS-3032) is an oral selective MDM2 inhibitor currently in phase 1 development for solid and hematologic malignancies, including a combination study with quizartinib in patients with relapsed/ refractory FLT3-ITD AML or newly-diagnosed FLT3-ITD AML unfit for intensive chemotherapy in the U.S., EU and Japan; a single agent and combination study with 5-azacitidine, an inhibitor of DNA methylation, in patients with newly-diagnosed AML unfit for intensive chemotherapy, relapsed/refractory AML or high-risk MDS in the U.S.; and two single agent studies in lymphomas and solid tumors in the U.S. and Japan.

About PLX2853

PLX2853 is an investigational oral small molecule BET inhibitor currently in phase 1 development for AML and high-risk myelodysplastic syndrome (MDS) and phase 1/2 development for advanced solid tumors in the U.S. PLX2853 was discovered by Plexxikon Inc.

Valemetostat, milademetan and PLX2853 are investigational agents that have not been approved for any indication in any country. Safety and efficacy have not been established.

About Daiichi Sankyo Cancer Enterprise

The mission of Daiichi Sankyo Cancer Enterprise is to leverage our world-class, innovative science and push beyond traditional thinking to create meaningful treatments for patients with cancer. We are dedicated to transforming science into value for patients, and this sense of obligation informs everything we do. Anchored by three pillars including our investigational Antibody Drug Conjugate Franchise, Acute Myeloid Leukemia Franchise and Breakthrough Science pipeline, we aim to deliver seven distinct new molecular entities over eight years during 2018 to 2025. Our powerful research engines include two laboratories for biologic/ immuno-oncology and small molecules in Japan, and Plexxikon Inc., our small molecule structure-guided R&D center in Berkeley, CA. For more information, please visit: www.DSCancerEnterprise.com.

Stemline Therapeutics Announces Three ELZONRIS Presentations, Including an Oral Presentation in Myelofibrosis, at Upcoming ASH Meeting

On November 6, 2019 Stemline Therapeutics, Inc. (Nasdaq: STML), a commercial-stage biopharmaceutical company focused on the development and commercialization of novel oncology therapeutics, reported that ELZONRIS (tagraxofusp; SL-401), a novel targeted therapeutic directed to CD123, will be featured in three presentations, including an oral presentation of ELZONRIS clinical data in myelofibrosis, at the 2019 American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting and Exposition, to be held December 7-10, 2019 in Orlando, FL (Press release, Stemline Therapeutics, NOV 6, 2019, View Source [SID1234550550]).

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Details on the ASH (Free ASH Whitepaper) presentations are as follows:

Myelofibrosis – Clinical (monotherapy); oral presentation
Title: Results from a Phase 1/2 Clinical Trial of Tagraxofusp (SL-401) in Patients with Intermediate, or High Risk, Relapsed/Refractory Myelofibrosis
Presenter: Naveen Pemmaraju, MD; MD Anderson Cancer Center
Abstract: 558
Session: 634. Myeloproliferative Syndromes: Clinical: Emerging and Novel Targeted Therapies
Date/Time: Monday, December 9, 2019 8:15 AM ET
Location: Orange County Convention Center, W304EFGH

Multiple Myeloma – Clinical (combination therapy); poster presentation
Title: Results from Phase 1/2 Trial of Tagraxofusp in Combination with Pomalidomide and Dexamethasone in Relapsed or Refractory Multiple Myeloma
Presenter: Paul G. Richardson, M.D.; Dana-Farber Cancer Institute
Abstract: 3145
Session: 653. Myeloma: Therapy, excluding Transplantation: Poster II
Date/Time: Sunday, December 8, 2019 6:00 PM–8:00 PM ET
Location: Orange County Convention Center, Hall B

Myeloproliferative Neoplasms – Preclinical (combination therapy); poster presentation
Title: Evaluation of Tagraxofusp (SL-401) Alone and in Combination with Ruxolitinib for the Treatment of Myeloproliferative Neoplasms
Presenter: Aishwarya Krishnan, MD; Memorial Sloan Kettering Cancer Center
Abstract: 2967
Session: 635. Myeloproliferative Syndromes: Basic Science: Poster II
Date/Time: Sunday, December 8, 2019 6:00 PM–8:00 PM ET
Location: Orange County Convention Center, Hall B

Ivan Bergstein, M.D., CEO of Stemline Therapeutics, commented, "We are honored that ASH (Free ASH Whitepaper) has selected ELZONRIS data as the subject of three presentations, including an oral presentation of clinical trial data in myelofibrosis (MF). Moreover, given the very encouraging trial results to date that we have witnessed, we are expanding the current cohort to enable additional patient enrollment. Two other presentations, including ELZONRIS clinical combination data in patients with multiple myeloma, and ELZONRIS preclinical combination data in myeloproliferative neoplasms, highlight ELZONRIS’ potential utility across indications. In addition, as we now transition our chronic myelomonocytic leukemia (CMML) program to registration-directed, we remain on track to begin enrollment of the Stage 3a cohort in patients with CMML in the coming months, with the goal of reporting data from this cohort, in both the relapsed/refractory and first-line settings, by 2H20."

About ELZONRIS
ELZONRIS (tagraxofusp-erzs), a CD123-directed cytotoxin, is approved by the U.S. Food and Drug Administration (FDA) and commercially available in the U.S. for the treatment of adult and pediatric patients, two years or older, with blastic plasmacytoid dendritic cell neoplasm (BPDCN). For full prescribing information in the U.S., visit www.ELZONRIS.com. In Europe, a marketing authorization application (MAA) is under review by the European Medicines Agency (EMA). ELZONRIS is also being evaluated in additional clinical trials in other indications including chronic myelomonocytic leukemia (CMML), myelofibrosis (MF), and acute myeloid leukemia (AML).

About BPDCN
BPDCN is an aggressive hematologic malignancy with historically poor outcomes and an area of unmet medical need. BPDCN typically presents in the bone marrow and/or skin and may also involve lymph nodes and viscera. The BPDCN cell of origin is the plasmacytoid dendritic cell (pDC) precursor. The diagnosis of BPDCN is based on the immunophenotypic diagnostic triad of CD123, CD4, and CD56, as well as other markers. For more information, please visit the BPDCN disease awareness website at www.bpdcninfo.com.

About CD123
CD123 is a cell surface target expressed on a wide range of myeloid tumors including blastic plasmacytoid dendritic cell neoplasm (BPDCN), certain myeloproliferative neoplasms (MPNs) including chronic myelomonocytic leukemia (CMML) and myelofibrosis (MF), acute myeloid leukemia (AML) (and potentially enriched in certain AML subsets), myelodysplastic syndrome (MDS), and chronic myeloid leukemia (CML). CD123 has also been reported on certain lymphoid malignancies including multiple myeloma (MM), acute lymphoid leukemia (ALL), hairy cell leukemia (HCL), Hodgkin’s lymphoma (HL), and certain Non-Hodgkin’s lymphomas (NHL). In addition, CD123 has been detected on some solid tumors as well as autoimmune disorders including cutaneous lupus and scleroderma.

Y-mAbs to Announce Third Quarter 2019 Financial and Operating Results on November 13

On November 6, 2019 Y-mAbs Therapeutics, Inc. (the "Company" or "Y-mAbs") (Nasdaq: YMAB) reported that it will report its third quarter 2019 financial and operating results on Wednesday, November 13, 2019, after the close of the U.S. financial markets (Press release, Y-mAbs Therapeutics, NOV 6, 2019, View Source [SID1234550642]). The announcement will be followed by a conference call and webcast with the investment community at 4:30 p.m. ET. Participating on the call from Y-mAbs will be Thomas Gad, Founder, Chairman and President; Dr. Claus Moller, Chief Executive Officer; and Bo Kruse, Chief Financial Officer.

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Conference call and webcast details:

Investors (domestic): 877-407-0792
Investors (international): 201-689-8263
Conference ID: 13696442

To access a live webcast of the update, please use the following link:
View Source

ADC Therapeutics Announces Presentations at 61st American Society of Hematology (ASH) Annual Meeting

On November 2019 ADC Therapeutics SA, a clinical-stage oncology-focused biotechnology company pioneering the development of highly potent antibody drug conjugates (ADCs) for patients suffering from hematological malignancies and solid tumors, reported that two abstracts on ADCT-402 (loncastuximab tesirine) have been selected for an oral and poster presentation at the upcoming 61st American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting, which is being held December 7-10, 2019, in Orlando, FL (Press release, ADC Therapeutics, NOV 6, 2019, View Source [SID1234596052]).

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Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

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Jay Feingold, MD, PhD, Senior Vice President, Chief Medical Officer and Head of Oncology Clinical Development at ADC Therapeutics, said, "We look forward to sharing updated interim efficacy data from our pivotal Phase 2 clinical trial of ADCT-402 in relapsed or refractory diffuse large B-cell lymphoma (DLBCL), which demonstrate its encouraging single-agent clinical activity and manageable toxicity in a difficult-to-treat patient population and support our plans to submit a Biologics License Application to the U.S. Food and Drug Administration in the second half of 2020. In addition, we are pleased to share information about our Phase 1 trial evaluating ADCT-402 plus durvalumab. These presentations at the ASH (Free ASH Whitepaper) Annual Meeting validate the potential of ADCT-402 to fill a significant unmet medical need for heavily pretreated patients with B-cell non-Hodgkin lymphomas, both as a single agent and in combination with approved therapies."

Oral Presentation

Title: Interim Futility Analysis of a Phase 2 Study of Loncastuximab Tesirine, a Novel Pyrrolobenzodiazepine-Based Antibody-Drug Conjugate, in Patients with Relapsed or Refractory Diffuse Large B-Cell Lymphoma

Abstract Number: 757

Session: 626. Aggressive Lymphoma (Diffuse Large B-Cell and Other Aggressive B-Cell Non-Hodgkin Lymphomas)—Results from Prospective Clinical Trials: Novel Therapies in Relapsed/Refractory Disease

Date and Time: Monday, December 9, 2019; 2:45 p.m. ET

Location: Orange County Convention Center, W304ABCD

Presenter: Carmelo Carlo-Stella, MD, Humanitas Cancer Center, Humanitas University

Poster Presentation

Title: Safety and Anti-Tumor Activity Study of Loncastuximab Tesirine and Durvalumab in Diffuse Large B-Cell, Mantle Cell, or Follicular Lymphoma

Abstract Number: 2807

Session: 623. Mantle Cell, Follicular, and Other Indolent B-Cell Lymphoma—Clinical Studies: Poster II

Date and Time: Sunday, December 8, 2019; 6 – 8 p.m. ET

Location: Orange County Convention Center, Hall B

Presenter: Craig Moskowitz, MD, Sylvester Comprehensive Cancer Center, University of Miami Health System

For more information about the ASH (Free ASH Whitepaper) Annual Meeting, visit View Source

ADC Therapeutics to Host Event ADC Therapeutics will host an investor and analyst event beginning at 8 p.m. ET on Sunday, December 8, 2019. This event will not be webcast.

About ADCT-402

ADCT-402 (loncastuximab tesirine) is an antibody drug conjugate (ADC) composed of a humanized monoclonal antibody directed against human CD19 and conjugated through a linker to a pyrrolobenzodiazepine (PBD) dimer cytotoxin. Once bound to a CD19-expressing cell, ADCT-402 is designed to be internalized by the cell, following which the warhead is released. The warhead is designed to bind irreversibly to DNA to create highly potent interstrand cross-links that block DNA strand separation, thus disrupting essential DNA metabolic processes such as replication and ultimately resulting in cell death. CD19 is a clinically validated target for the treatment of B-cell malignancies. ADCT-402 is being evaluated in a pivotal Phase 2 clinical trial in patients with relapsed or refractory (R/R) diffuse large B-cell lymphoma (DLBCL) (NCT03589469), a Phase 1b trial in combination with ibrutinib in patients with R/R DLBCL or mantle cell lymphoma (MCL) (NCT03684694) and a Phase 1b trial in combination with durvalumab in patients with R/R DLBCL, MCL or follicular lymphoma (NCT03685344). The U.S. Food and Drug Administration granted orphan drug designation to ADCT-402 for the treatment of relapsed or refractory DLBCL and MCL.