Genmab Announces Multiple Abstracts to be Presented at the 64th Annual Meeting and Exposition of the American Society of Hematology (ASH)

• Nineteen abstracts accepted, including multiple presentations on the safety and efficacy of investigational epcoritamab (DuoBody^®-CD3xCD20) in a variety of treatment settings and hematologic malignancies
• Four oral presentations highlighting data evaluating epcoritamab for the treatment of relapsed/refractory (R/R) large B-cell lymphoma (LBCL), R/R follicular lymphoma (FL), previously untreated FL, and Richter's syndrome
• New data evaluating investigational medicines in Genmab’s early portfolio of cancer immunotherapies will also be presented
• Genmab to host 2022 R&D Update and ASH Data Review meeting December 12

Genmab A/S (Nasdaq: GMAB) announced today that 19 abstracts evaluating various investigational medicines in its pipeline have been accepted for presentation at the 64^th Annual Meeting and Exposition of the American Society of Hematology (ASH), being held at the Ernest N. Morial Convention Center in New Orleans, Louisiana, and virtually, December 10-13. The presentations will include four oral and six poster presentations highlighting data from several clinical trials evaluating the safety and efficacy of epcoritamab (DuoBody^®-CD3xCD20), an investigational subcutaneous IgG1-bispecific antibody created using Genmab's proprietary DuoBody technology, alone or in combination for the treatment of patients with relapsed or refractory (R/R) large B-cell lymphoma (LBCL), including diffuse large B-cell lymphoma (DLBCL), R/R follicular lymphoma (FL), previously untreated FL and Richter’s syndrome.

Additionally, abstracts evaluating two investigational medicines in Genmab’s early pipeline have been accepted for presentation, including the first-in-human data from the phase 1/2 trial evaluating GEN3014 (HexaBody^®-CD38), an investigational novel human CD38 monoclonal antibody, in patients with R/R multiple myeloma (MM). In addition, preclinical data from a novel drug candidate GEN3017 (DuoBody^®-CD3xCD30) will also be presented.

All abstracts accepted for presentation have been published on the ASH website.

Epcoritamab is being co-developed by Genmab and AbbVie as part of the companies' oncology collaboration. The companies are committed to evaluating epcoritamab as a monotherapy, and in combination, across lines of therapy in a range of B-cell malignancies, including an ongoing phase 3, open-label, randomized clinical trial evaluating epcoritamab as a monotherapy in patients with relapsed/refractory LBCL, including DLBCL (NCT: 04628494) and a phase 3, open-label randomized clinical trial evaluating epcoritamab in combination in patients with relapsed/refractory follicular lymphoma (FL) (NCT: 05409066).

“As part of our commitment to the blood cancer community, we continue to advance our research and innovative technologies in an effort to develop differentiated therapies with the goal of transforming the future of treatment for patients,” said Dr. Judith Klimovsky, Executive Vice President and Chief Development Officer of Genmab. “The robust data being presented at this year’s American Society of Hematology meeting are encouraging and support the potential of epcoritamab to become a core therapy for B-cell malignancies.”

2022 R&D Update and ASH Data Review

On Monday, December 12, at 8:00 PM EST (7:00 PM CST / 1:00 AM GMT), Genmab will host its 2022 R&D Update and ASH Data Review. The event will be conducted and webcast live. Details, including the webcast link and registration can be found here. This meeting is not an official program of the ASH Annual Meeting.

Abstracts accepted at ASH:

Epcoritamab (DuoBody®-CD3xCD20)

GEN3014 (HexaBody^®-CD38)

GEN3017 (DuoBody^®-CD3xCD30)

Real-World Evidence

About Epcoritamab

Epcoritamab is an investigational IgG1-bispecific antibody created using Genmab's proprietary DuoBody technology. Genmab's DuoBody-CD3 technology is designed to direct cytotoxic T cells selectively to elicit an immune response towards target cell types. Epcoritamab is designed to simultaneously bind to CD3 on T cells and CD20 on B-cells and induces T cell mediated killing of CD20+ cells.ⁱ CD20 is expressed on B-cells and a clinically validated therapeutic target in many B-cell malignancies, including diffuse large B-cell lymphoma, follicular lymphoma, mantle cell lymphoma and chronic lymphocytic leukemia.^ii,iii

About Genmab

Genmab is an international biotechnology company with a core purpose to improve the lives of people with cancer. For more than 20 years, Genmab’s vision to transform cancer treatment has driven its passionate, innovative and collaborative teams to invent next-generation antibody technology platforms and leverage translational research and data sciences, fueling multiple differentiated cancer treatments that make an impact on people’s lives. To develop and deliver novel therapies to patients, Genmab has formed 20+ strategic partnerships with biotechnology and pharmaceutical companies. Genmab’s proprietary pipeline includes bispecific T-cell engagers, next-generation immune checkpoint modulators, effector function enhanced antibodies and antibody-drug conjugates.

Genmab is headquartered in Copenhagen, Denmark with locations in Utrecht, the Netherlands, Princeton, New Jersey, U.S. and Tokyo, Japan. For more information, please visit Genmab.com and follow us on Twitter.com/Genmab.

This Company Announcement contains forward looking statements. The words “believe”, “expect”, “anticipate”, “intend” and “plan” and similar expressions identify forward looking statements. Actual results or performance may differ materially from any future results or performance expressed or implied by such statements. The important factors that could cause our actual results or performance to differ materially include, among others, risks associated with pre-clinical and clinical development of products, uncertainties related to the outcome and conduct of clinical trials including unforeseen safety issues, uncertainties related to product manufacturing, the lack of market acceptance of our products, our inability to manage growth, the competitive environment in relation to our business area and markets, our inability to attract and retain suitably qualified personnel, the unenforceability or lack of protection of our patents and proprietary rights, our relationships with affiliated entities, changes and developments in technology which may render our products or technologies obsolete, and other factors. For a further discussion of these risks, please refer to the risk management sections in Genmab’s most recent financial reports, which are available on www.genmab.com and the risk factors included in Genmab’s most recent Annual Report on Form 20-F and other filings with the U.S. Securities and Exchange Commission (SEC), which are available at www.sec.gov. Genmab does not undertake any obligation to update or revise forward looking statements in this Media Release nor to confirm such statements to reflect subsequent events or circumstances after the date made or in relation to actual results, unless required by law.

Genmab A/S and/or its subsidiaries own the following trademarks: Genmab^®; the Y-shaped Genmab logo^®; Genmab in combination with the Y-shaped Genmab logo^®; HuMax^®; DuoBody^®; DuoBody in combination with the DuoBody logo^®; HexaBody^®; HexaBody in combination with the HexaBody logo^®; DuoHexaBody^®; HexElect^®; and UniBody^®.

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i</sup> Engelberts et al. "DuoBody-CD3xCD20 induces potent T-cell-mediated killing of malignant B cells in preclinical models and provides opportunities for subcutaneous dosing." EBioMedicine. 2020;52:102625. DOI: 10.1016/j.ebiom.2019.102625

ⁱⁱ Rafiq, Butchar, Cheney, et al. "Comparative Assessment of Clinically Utilized CD20-Directed Antibodies in Chronic Lymphocytic Leukemia Cells Reveals Divergent NK Cell, Monocyte, and Macrophage Properties." J. Immunol. 2013;190(6):2702-2711. DOI: 10.4049/jimmunol.1202588

ⁱⁱⁱ Singh, Gupta, Almasan. "Development of Novel Anti-Cd20 Monoclonal Antibodies and Modulation in Cd20 Levels on Cell Surface: Looking to Improve Immunotherapy Response." J Cancer Sci Ther. 2015;7(11):347-358. DOI: 10.4172/1948-5956.1000373

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