On April 8, 2026 MacroGenics, Inc. (NASDAQ: MGNX), a clinical-stage biopharmaceutical company focused on developing innovative antibody-based therapeutics for the treatment of cancer, reported that the U. S. Food and Drug Administration (FDA) has removed the partial clinical hold on the Company’s Phase 2 LINNET study of lorigerlimab, an investigational, bispecific DART molecule that targets PD-1 and CTLA-4. During the partial clinical hold, previously enrolled study participants were allowed to continue to receive study drug. Going forward, new participants will be enrolled under a revised protocol that includes additional risk-mitigation measures for potential hematologic and cardiac toxicities.

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"We are grateful for the productive interaction with the reviewers at the FDA’s Office of Oncologic Diseases, as well as the diligent efforts of the MacroGenics team to provide a rapid and comprehensive response to the FDA," said Eric Risser, President and Chief Executive Officer of MacroGenics. "With the partial clinical hold lifted, we intend to resume enrollment of new study participants in the ongoing LINNET study and we remain on track to provide a mid-year clinical update on the program."

About the LINNET Study

The LINNET study is evaluating single-agent lorigerlimab, a bispecific DART molecule that targets PD-1 and CTLA-4, in up to approximately 60 eligible study participants. These study participants comprise patients with either platinum-resistant ovarian cancer (PROC) or clear cell gynecologic cancer (CCGC) who have received one or more prior lines of therapy. The primary endpoint is objective response rate (ORR), with multiple secondary endpoints. To date, 41 study participants have been dosed in the LINNET study and over 300 study participants have been dosed across all previous lorigerlimab Phase 1 and Phase 2 clinical studies.

(Press release, MacroGenics, APR 8, 2026, View Source [SID1234664239])