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NTLA-2001

Phase 3

Transthyretin Amyloidosis (ATTR) With Cardiomyopathy | Monoclonal antibody | Cardiovascular |Intellia Therapeutics, Inc.|Last Updated: Mar 27, 2026

Target and mechanism

Molecular targetTTR
Target classProtein
ModalityMonoclonal antibody

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment1,200

FDA Designations

No designations recorded

Clinical trial landscape

NTLA-2001 · 2 trials · 4 indications

Phase 3 1Phase 1 1
NCT06128629MAGNITUDE: A Phase 3 Study of NTLA-2001 in Participants With Transthyretin Amyloidosis With Cardiomyopathy (ATTR-CM)Transthyretin Amyloidosis (ATTR) With Cardiomyopathy
RECRUITING1,200 Analytics
PHASE3RECRUITING
MAGNITUDE: A Phase 3 Study of NTLA-2001 in Participants With Transthyretin Amyloidosis With Cardiomyopathy (ATTR-CM)
Transthyretin Amyloidosis (ATTR) With CardiomyopathyUnlock trial analytics

Study Endpoints

Primary Endpoints

Composite outcome of cardiovascular (CV) mortality and CV events
Maximum study duration is dependent on event rates and is estimated to be at least 18 months and up to approximately 5 years
Number of Participants with Treatment-Emergent Adverse Events
up to Day 730
Number of Participants with Clinically Significant Clinical Laboratory Test Findings
up to Day 730
Number of Participants with Clinically Significant Safety Measurements
up to Day 730
Percent Change from Baseline in Serum TTR (enzyme-linked immunosorbent assay [ELISA])
up to Day 730
Percent Change from Baseline in Serum Prealbumin
up to Day 730
Mean Area Under the Plasma Concentration-Time Curve from Time Zero to the Time of the Last Measurable Concentration (AUClast) for DMG-PEG2k, LP000001, Cas9 mRNA, and sgRNA
up to Day 730
Mean Area Under the Plasma Concentration-Time Curve from Time Zero to Infinity (AUCinf) for DMG-PEG2k, LP000001, Cas9 mRNA, and sgRNA
up to Day 730
Mean Maximum Concentration (Cmax) for DMG-PEG2k, LP000001, Cas9 mRNA, and sgRNA
up to Day 730
Mean Time of the Maximum Concentration (Tmax) for DMG-PEG2k, LP000001, Cas9 mRNA, and sgRNA
up to Day 730
Mean Terminal Half-Life (t½) for DMG-PEG2k, LP000001, Cas9 mRNA, and sgRNA
up to Day 730
Mean Apparent Clearance (CL) for DMG-PEG2k, LP000001, Cas9 mRNA, and sgRNA
up to Day 730
Mean Volume of Distribution (Vd) for DMG-PEG2k, LP000001, Cas9 mRNA, and sgRNA
up to Day 730
Change from Baseline in Anti-Drug Antibody to NTLA-2001 and Anti-Cas9 Protein Antibody to Transgene Product Levels
up to Day 730

Secondary Endpoints

Change in baseline to month 18 in serum TTR
Baseline, Month 18
Change from baseline to month 18 in KCCQ-OS score
Baseline, Month 18
Polyneuropathy only: Change from Baseline in Familial Amyloid Polyneuropathy (FAP) Stage.
up to Day 730
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
NTLA-2001EXPERIMENTALSingle intravenous (IV) infusion of NTLA-2001
PlaceboPLACEBO_COMPARATORSingle IV infusion of normal saline
Polyneuropathy Part 1: NTLA-2001EXPERIMENTALParticipants, assigned to one of 4 dose-escalation cohorts, will receive a single dose of NTLA-2001.
Polyneuropathy Part 2: NTLA-2001EXPERIMENTALParticipants, assigned to the dose-expansion cohort, will receive a single dose of NTLA-2001.
Cardiomyopathy Part 1 (UK only): NTLA-2001EXPERIMENTALParticipants, assigned to one of 2 dose-escalation cohorts, will receive a single dose of NTLA-2001.
Cardiomyopathy Part 2 (UK only): NTLA-2001EXPERIMENTALParticipants, assigned to the dose-expansion cohort, will receive a single dose of NTLA-2001.
Polyneuropathy Follow-on Dosing (PN Part 1 Dose Level 1 Subjects only): NTLA-2001EXPERIMENTALParticipants assigned to the follow-on dosing cohort will receive a subsequent dose of NTLA-2001.

Interventions

NameTypeDescription
NTLA-2001BIOLOGICALNTLA-2001 (55mg) by IV infusion
PlaceboDRUGNormal saline (0.9% NaCl) by IV infusion
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Eligibility Criteria

Age Range18 Years to 90 Years
SexALL
Healthy VolunteersNo
Study Sites132

Inclusion Criteria: * Documented diagnosis of ATTR amyloidosis with cardiomyopathy * Medical history of heart failure (HF) * Symptoms of HF are optimally managed and clinically stable within 28 days prior to administration of study intervention * Screening NT-proBNP, a blood marker of HF severity, ...

Countries:United StatesArgentinaAustraliaAustriaBelgiumBrazilCanadaCzechiaDenmarkFranceGermanyHungaryIsraelItalyJapanMexicoNetherlandsNew ZealandNorwayPortugalSingaporeSouth KoreaSpainSwedenTaiwanUnited Kingdom
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Frequently asked questions about NTLA-2001

What is NTLA-2001 used for?

NTLA-2001 is an investigational therapy being developed for transthyretin amyloidosis (ATTR) with cardiomyopathy and transthyretin-related (ATTR) familial amyloid polyneuropathy. It is currently in Phase 3 clinical development for these indications.

What does NTLA-2001 target?

NTLA-2001 targets TTR, a protein involved in transthyretin amyloidosis. By targeting TTR, the therapy aims to address the underlying protein accumulation associated with the disease.

Who makes NTLA-2001?

NTLA-2001 is being developed by Intellia Therapeutics, Inc., a biopharmaceutical company. Intellia's stock is traded under the ticker symbol NTLA on the stock market.

What phase is NTLA-2001 in?

NTLA-2001 is currently in Phase 3 clinical development. A Phase 3 trial, known as MAGNITUDE, is recruiting participants with transthyretin amyloidosis with cardiomyopathy. The therapy is investigational and not yet approved.

What clinical trials is NTLA-2001 in?

NTLA-2001 has been studied in two clinical trials. NCT04601051 was a Phase 1 study completed in patients with hereditary transthyretin amyloidosis with polyneuropathy and cardiomyopathy. NCT06128629 is the Phase 3 MAGNITUDE trial, currently recruiting for transthyretin amyloidosis with cardiomyopathy.

Is NTLA-2001 the same as any other drug?

NTLA-2001 is the primary name for this investigational therapy. No alternative names have been reported for this drug in clinical trial registrations.