Intellia Therapeutics Announces Publication of Positive Interim Phase 1 Data for NTLA-2002 in Patients with Hereditary Angioedema in the New England Journal of Medicine

• Data reinforce the potential of NTLA-2002 to eliminate angioedema attacks in people living with hereditary angioedema (HAE) after a single dose
• A single dose of NTLA-2002 led to 95% mean reduction in monthly HAE attack rate with 9 of 10 patients remaining completely attack free following the 16-week primary observation period through the latest follow-up reported
• NTLA-2002 was well-tolerated at all dose levels
• Second NEJM publication of initial clinical data for Intellia’s in vivo CRISPR-based investigational therapies

Excerpt from the Press Release:

CAMBRIDGE, Mass., Jan. 31, 2024 (GLOBE NEWSWIRE) — Intellia Therapeutics, Inc. (NASDAQ:NTLA), a leading clinical-stage gene editing company focused on revolutionizing medicine with CRISPR-based therapies, today announced that interim results from the Phase 1 portion of the Phase 1/2 study of NTLA-2002 were published online in the New England Journal of Medicine (NEJM). NTLA-2002 is an investigational in vivo CRISPR-based gene editing therapy in development as a single-dose treatment for hereditary angioedema (HAE), a rare genetic condition that leads to potentially life-threatening swelling attacks.

“Despite currently available treatments, people living with hereditary angioedema continue to face frequent anxiety about their next swelling attack. The interim NTLA-2002 clinical data published suggest that a single dose of NTLA-2002 may eliminate angioedema attacks for people suffering from hereditary angioedema,” said Intellia President and Chief Executive Officer John Leonard, M.D. “We are highly encouraged by these data and look forward to presenting extended follow-up from the Phase 1 and results from the Phase 2 portion later this year. Additionally, we remain on track to initiate a global pivotal study for NTLA-2002 in the second half of 2024, subject to regulatory feedback. This marks the second consecutive Intellia in vivo CRISPR-based program to have its initial clinical data published in the New England Journal of Medicine, further supporting the immense potential impact our proprietary gene editing platform could have on the future of human health.”

The reported data showed that a single dose of NTLA-2002 led to a 95% mean reduction in monthly HAE attack rate across all 10 patients in the Phase 1 portion. Nine out of 10 patients remained completely attack-free following the 16-week primary observation period through the latest follow-up. Further, all patients who discontinued concomitant long-term HAE prophylaxis treatment after NTLA-2002 administration (n=6) have reported no HAE attacks since discontinuation. NTLA-2002 has been well tolerated at all dose levels. The most frequent adverse events reported were mild, transient infusion-related reactions and fatigue. The data were previously shared in a late-breaking presentation at the 2023 European Academy of Allergy and Clinical Immunology Hybrid Congress.

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