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MacroGenics Announces Pausing of Enrollment of New Study Participants in LINNET Trial

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ROCKVILLE, MD, Feb. 23, 2026 (GLOBE NEWSWIRE) --  MacroGenics, Inc. (NASDAQ:MGNX), a clinical-stage biopharmaceutical company focused on developing innovative antibody-based therapeutics for the treatment of cancer,

Original source

AI Summary

MacroGenics, Inc. faces a partial clinical hold from the FDA on its LINNET study of lorigerlimab, halting new patient enrollment due to safety concerns. This may delay potential advancement of the drug in key cancer markets, impacting investor sentiment and stock performance significantly.

Sentiment Rationale

Past instances of clinical holds often led to significant stock declines due to halted progress and uncertainty. Similar biotech companies have suffered when regulatory issues arise, impacting their timelines and growth forecasts.

Trading Thesis

Expect MGNX stock pressure in the short term due to regulatory overhang.

Market-Moving

  • Investors should monitor FDA communications for updates on the hold's resolution.
  • Safety concerns may lead to long-term impacts on lorigerlimab's market readiness.
  • Partnerships or further funding could stabilize stock if new trials are initiated.
  • Sales and revenue estimates dependent on timely lifting of enrollment suspension.

Key Facts

  • FDA places partial clinical hold on MGNX's Phase 2 LINNET study.
  • Enrollment paused due to serious safety events in trial participants.
  • Key safety issues included thrombocytopenia, myocarditis, and septic shock.
  • Current participants can continue treatment; enrollment stoppage impacts growth potential.
  • CEO emphasizes commitment to patient safety and resuming enrollment quickly.

Companies Mentioned

  • MacroGenics, Inc. (MGNX): MGNX's stock is likely to face volatility due to regulatory developments.

Corporate Developments

This falls under 'Corporate Developments' as it directly impacts MacroGenics' operational and clinical prospects and investor confidence.

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