NTLA-2002 in Adults With Hereditary Angioedema (HAE) (NTLA-2002)
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ClinicalTrials.gov Identifier: NCT05120830 |
Recruitment Status :
Recruiting
First Posted : November 15, 2021
Last Update Posted : May 1, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Hereditary Angioedema | Biological: Biological NTLA-2002 Other: Normal Saline IV Administration | Phase 1 Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 55 participants |
Allocation: | Non-Randomized |
Intervention Model: | Sequential Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Phase 1/2 Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of NTLA-2002 in Adults With Hereditary Angioedema (HAE) |
Actual Study Start Date : | December 10, 2021 |
Estimated Primary Completion Date : | April 15, 2024 |
Estimated Study Completion Date : | December 15, 2025 |

Arm | Intervention/treatment |
---|---|
Experimental: Phase 1 Study Arm
Participants assigned to 1 of 3 dose-escalation cohorts will receive a single dose of NTLA-2002 on Day 1 and will then be followed for 104 weeks. Primary observation period is 16 weeks.
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Biological: Biological NTLA-2002
CRISPR/Cas9 gene editing system delivered by LNP for IV administration |
Experimental: Phase 2 Experimental Study Arm
Participants randomized to NTLA-2002 (2 dose levels), will receive a single dose of NTLA-2002 on Day 1 and will then be followed for 104 weeks. Primary observation period is 16 weeks.
|
Biological: Biological NTLA-2002
CRISPR/Cas9 gene editing system delivered by LNP for IV administration |
Placebo Comparator: Phase 2 Placebo Comparator Study Arm
Participants randomized to placebo will receive IV normal saline on Day 1 and will then be followed for up to 104 weeks. Primary observation period is 16 weeks.
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Other: Normal Saline IV Administration
The administration of IV normal saline |
- Safety and tolerability of NTLA-2002 as determined by adverse events (AEs) and dose limiting toxicities (DLTs) [ Time Frame: From NTLA-2002 infusion up to week 104 post-infusion ](Phase 1 only)
- Number of HAE attacks per month (Weeks 1-16) [ Time Frame: From study drug infusion up to week 16 post-infusion ](Phase 2 only)
- Change from baseline in total plasma kallikrein protein level [ Time Frame: From NTLA-2002 infusion up to week 104 post-infusion ](Phase 1 & 2)
- Plasma and urine concentrations for DMG-PEG2k, LP000001, Cas9 mRNA, and sgRNA [ Time Frame: From NTLA-2002 infusion up to week 104 post-infusion ](Phase 1 & 2)
- Safety and tolerability of NTLA-2002 as determined by AEs [ Time Frame: From study drug infusion up to week 104 post-infusion ](Phase 2 only)
- Number of HAE attacks per month (Weeks 5-16) [ Time Frame: From week 6 post-infusion up to week 16 post-infusion ](Phase 2 only)
- Number of HAE attacks per month requiring acute therapy (Weeks 1-16, Weeks 5-16) [ Time Frame: From study drug infusion up to week 16 post-infusion ](Phase 2 only)

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age >18 years
- Diagnosis of HAE Types I or II
- Ability to provide evidence of HAE attacks to meet the screening requirement
- Subjects must have access to, and the ability to use, ≥ 1 acute medication(s) to treat angioedema attacks.
- Adequate chemistry and hematology measures at screening
- Subjects must agree not to participate in another interventional study for the duration of this trial.
- Subjects must be capable of providing signed informed consent
Exclusion Criteria:
- Concurrent diagnosis of any other type of recurrent angioedema
- Subjects who have known negative reaction or hypersensitivity to any lipid nanoparticles (LNP) component.
- Any condition that, in the Investigator's opinion, could adversely affect the safety of the subject.
- Unwilling to comply with study procedures.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05120830
Contact: Trial Manager at Intellia | 833-888-0387 | clinicalscience@intelliatx.com |
France | |
Clinical Trial Site | Not yet recruiting |
Grenoble, France | |
Netherlands | |
Clinical Trial Site | Recruiting |
Amsterdam, Netherlands | |
New Zealand | |
Clinical Trial Site | Recruiting |
Auckland, New Zealand | |
United Kingdom | |
Clinical Trial Site | Recruiting |
Cambridge, United Kingdom |
Responsible Party: | Intellia Therapeutics |
ClinicalTrials.gov Identifier: | NCT05120830 |
Other Study ID Numbers: |
ITL-2002-CL-001 |
First Posted: | November 15, 2021 Key Record Dates |
Last Update Posted: | May 1, 2023 |
Last Verified: | July 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Angioedema Angioedemas, Hereditary Hereditary Complement Deficiency Diseases Vascular Diseases Cardiovascular Diseases Urticaria Skin Diseases, Vascular |
Skin Diseases Hypersensitivity, Immediate Hypersensitivity Immune System Diseases Primary Immunodeficiency Diseases Genetic Diseases, Inborn Immunologic Deficiency Syndromes |