Affimed Announces Updated Phase 1/2 Data from Acimtamig in Combination with Allogeneic NK in Hodgkin Lymphoma Patients Who Failed Prior Chemotherapy and Are Double-Refractory to Brentuximab Vedotin (BV) and Checkpoint Inhibitors (CPIs)

Rhea-AI Summary

Affimed N.V. (AFMD) announced updated data on its lead innate cell engager (ICE®) acimtamig, presented at the American Society of Hematology (ASH) 2023 Annual Meeting. The objective response rate (ORR) for r/r Hodgkin lymphoma (HL) patients was 97%, with a complete response (CR) rate of 78%. The median event-free survival (EFS) was 9.8 months, with 84% of patients alive at 12 months. The treatment was well tolerated with no instances of cytokine release syndrome (CRS), graft versus host disease (GvHD) or immune effector cell-associated neurotoxicity syndrome (ICANS).

• In 32 patients with relapsed/refractory (r/r) Hodgkin lymphoma (HL) treated at the recommended phase 2 dose level (RP2D), the objective response rate (ORR) was 97% and the complete response (CR) rate was 78%
• In this cohort median EFS was 9.8 months with 84% patients alive at 12 months, and median duration of response (DoR) was 8.8 months
• Patients were heavily pretreated (median of 7 prior lines), all had previously received CPIs and BV, and were refractory to their most recent line of therapy
• Patients received up to four cycles of therapy and the treatment was well tolerated with no instances of cytokine release syndrome (CRS), graft versus host disease (GvHD) or immune effector cell-associated neurotoxicity syndrome (ICANS)

MANNHEIM, Germany, Dec. 11, 2023 (GLOBE NEWSWIRE) -- Affimed N.V. (Nasdaq: AFMD) (“Affimed” or the “Company”), a clinical-stage immuno-oncology company committed to giving patients back their innate ability to fight cancer, announced updated data on its lead innate cell engager (ICE^®) acimtamig. Data from the investigator-initiated trial is being presented today at the American Society of Hematology (ASH) 2023 Annual Meeting by Yago Nieto, M.D., Ph.D., Professor of Stem Cell Transplantation and Cellular Therapy at The University of Texas MD Anderson Cancer Center and principal investigator of the study. Affimed will host a webcast following the presentation to review the data and provide a strategic update on acimtamig’s future development.

A total of 42 patients were enrolled in the study with 36 patients treated at the RP2D. 32 of the 36 patients treated at the RP2D were HL patients. All 32 HL patients were heavily pretreated with multiple lines of chemotherapy, all had previously received CPIs and BV, and were refractory to their most recent line of therapy with active progressive disease at the time of enrollment. Across all dose levels, the treatment regimen achieved an ORR of 93% with a CR rate of 67%; among the 32 HL patients treated at the RP2D the treatment regimen achieved an ORR of 97% and a CR rate of 78%. In addition, the treatment regimen demonstrated a good safety and tolerability profile with no cases of CRS, ICANS or GvHD of any grade. Mild to moderate infusion related reactions (IRRs) were seen in 7.7% of the acimtamig infusions.

Across all dose levels, median event free survival (EFS) was 8.8 months and median overall survival (OS) was not reached. For the HL patients treated at the RP2D, median EFS was 9.8 months - with 84% patients alive at 12 months. The median DoR was 8.8 months and 72% CR assessed at 6 months for HL patients treated at the RP2D; 30% of patients with complete response remained in CR beyond 12 months.

“When we conduct studies in a patient population that has failed their previous line of therapy, demonstrating even a modest response is encouraging. To see this magnitude of responses in terms of ORR (97%) and CR (78%) is remarkable and fuels our commitment to bring this therapy to more patients,” said Dr. Andreas Harstrick, Chief Medical Officer at Affimed. “Building on these results, we are well underway with our Phase 2 LuminICE-203 study. We have enrolled and dosed patients in the first two cohorts and we look forward to sharing data in the first half of 2024.”

The Company will host a call today at 1:30 p.m. PST / 4:30 p.m. EST / 22:30 CET to discuss the data presented at ASH and provide a strategic update. The conference call will be available via phone and webcast. The live audio webcast of the call will be available in the “Webcasts” section on the “Investors” page of the Affimed website at https://www.affimed.com/investors/webcasts-and-corporate-presentation/. To access the call by phone, please use the link:  https://register.vevent.com/register/BIb2258d6c5f5a474cad74869a7b7b1bb5, and you will be provided with dial-in details and a pin number.

Note: To avoid delays, we encourage participants to dial into the conference call 15 minutes ahead of the scheduled start time. A replay of the webcast will be accessible at the same link for 30 days following the call.

About the AFM13-104 Phase 1/2 Study

The University of Texas MD Anderson Cancer Center is studying acimtamig (AFM13) in an investigator-sponsored phase 1/2 trial in combination with cord blood-derived allogeneic NK cells in patients with recurrent or refractory CD30-positive lymphomas. The study is a dose-escalation trial of precomplexed NK cells, followed by an expansion phase that recruited 36 patients with r/r CD30 positive lymphomas, treated with the RP2D of 1×10⁸ NK cells/kg followed by three weekly doses of 200 mg acimtamig monotherapy. Each treatment cycle consists of lymphodepleting chemotherapy with fludarabine (30 mg/m² per day) and cyclophosphamide (300 mg/m² per day) followed two days later by a single infusion of cytokine-preactivated and expanded cord blood-derived NK cells that are pre-complexed with acimtamig. Three weekly infusions of acimtamig (200 mg) monotherapy are subsequently administered and responses are assessed by the investigator on day 28 by FDG-PET.

MD Anderson has an institutional financial conflict of interest with Affimed related to this research and has therefore implemented an Institutional Conflict of Interest Management and Monitoring Plan. Additional information about the study can be found at www.clinicaltrials.gov (NCT04074746).

About Acimtamig

Acimtamig (AFM13) is a first-in-class innate cell engager (ICE^®) that uniquely activates the innate immune system to destroy CD30-positive hematologic tumors. Acimtamig induces specific and selective killing of CD30-positive tumor cells, leveraging the power of the innate immune system by engaging and activating natural killer (NK) cells and macrophages. Acimtamig is a tetravalent bispecific innate cell engager designed to act as a bridge between the innate immune cells and the tumor creating the necessary proximity for the innate immune cells to specifically destroy the tumor cells.

About Affimed N.V.

Affimed (Nasdaq: AFMD) is a clinical-stage immuno-oncology company committed to giving patients back their innate ability to fight cancer by actualizing the untapped potential of the innate immune system. The Company’s proprietary ROCK^® platform enables a tumor-targeted approach to recognize and kill a range of hematologic and solid tumors, enabling a broad pipeline of wholly-owned and partnered single agent and combination therapy programs. The ROCK^® platform predictably generates customized innate cell engager (ICE^®) molecules, which use patients’ immune cells to destroy tumor cells. This innovative approach enabled Affimed to become the first company with a clinical-stage ICE^®. Headquartered in Mannheim, Germany, with offices in New York, NY, Affimed is led by an experienced team of biotechnology and pharmaceutical leaders united by a bold vision to stop cancer from ever derailing patients’ lives. For more about the Company’s people, pipeline and partners, please visit: www.affimed.com.

About AlloNK^® and Artiva

Artiva is an immunotherapy company with the ability to produce off-the-shelf, allogeneic NK cell therapies at a massive scale. Artiva’s mission is to develop effective, safe and accessible cell therapies for patients with devastating autoimmune diseases and cancers. Artiva’s lead program, AlloNK^® (also known as AB-101), is an allogenic, non-genetically modified NK cell therapy candidate designed to enhance the antibody-dependent cellular cytotoxicity (ADCC) effect of monoclonal antibodies or NK cell engagers. AlloNK is a cryopreserved, off-the-shelf therapy with the potential to be administered in the community setting. Using the company’s cell therapy manufacturing platform, Artiva can generate thousands of doses of cryopreserved, infusion-ready AlloNK cells from a single umbilical cord blood unit while retaining high and consistent expression of CD16 and other activating NK receptors. Artiva is headquartered in San Diego. For more information, visit www.artivabio.com.

Forward-Looking Statements

This press release contains forward-looking statements. All statements other than statements of historical fact are forward-looking statements, which are often indicated by terms such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “goal,” “intend,” “look forward to,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “will,” “would” and similar expressions. Forward-looking statements appear in a number of places throughout this release and include statements regarding the Company’s intentions, beliefs, projections, outlook, analyses and current expectations concerning, among other things, the potential of acimtamig, AFM24, AFM28 and the Company’s other product candidates, the value of its ROCK® platform, its ongoing and planned preclinical development and clinical trials, its collaborations and development of its products in combination with other therapies, the timing of and its ability to make regulatory filings and obtain and maintain regulatory approvals for its product candidates, its intellectual property position, its collaboration activities, its ability to develop commercial functions, clinical trial data, its results of operations, cash needs, financial condition, liquidity, prospects, future transactions, growth and strategies, the industry in which it operates, the macroeconomic trends that may affect the industry or the Company, such as the instability in the banking sector experienced in the first quarter of 2023, impacts of the COVID-19 pandemic, the benefits to Affimed of orphan drug designation, the impact on its business by political events, war, terrorism, business interruptions and other geopolitical events and uncertainties, such as the Russia-Ukraine conflict, the fact that the current clinical data of acimtamig in combination with NK cell therapy is based on acimtamig precomplexed with fresh allogeneic cord blood-derived NK cells from The University of Texas MD Anderson Cancer Center, as opposed to Artiva’s AlloNK^® and other uncertainties and factors described under the heading “Risk Factors” in Affimed’s filings with the SEC. Given these risks, uncertainties, and other factors, you should not place undue reliance on these forward-looking statements, and the Company assumes no obligation to update these forward-looking statements, even if new information becomes available in the future.

Affimed Investor Relations Contact

Alexander Fudukidis
Director, Investor Relations
E-Mail: a.fudukidis@affimed.com
Tel.: +1 (917) 436-8102

Affimed Media Contact

Mary Beth Sandin
Vice President, Marketing and Communications
E-Mail: m.sandin@affimed.com 

FAQ

What is the updated data announced by Affimed N.V. (AFMD) at the ASH 2023 Annual Meeting?

The updated data includes an objective response rate (ORR) of 97% and a complete response (CR) rate of 78% for r/r Hodgkin lymphoma (HL) patients.

What is the median event-free survival (EFS) for the patients in the study?

The median EFS was 9.8 months, with 84% of patients alive at 12 months.

What were the major findings of the study regarding treatment tolerance?

The treatment was well tolerated with no instances of cytokine release syndrome (CRS), graft versus host disease (GvHD) or immune effector cell-associated neurotoxicity syndrome (ICANS).

What is the webcast about and when will it be available?

The webcast will review the data presented at ASH and provide a strategic update on acimtamig’s future development. It will be available in the 'Webcasts' section on the 'Investors' page of the Affimed website at https://www.affimed.com/investors/webcasts-and-corporate-presentation/.

When will the Phase 2 LuminICE-203 study data be shared?

Data from the Phase 2 LuminICE-203 study is expected to be shared in the first half of 2024.