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Alnylam Pharmaceuticals Pipeline

Company

Alnylam Pharmaceuticals is an American biopharmaceutical company focused on discovering, developing, and commercializing RNA interference (RNAi) therapeutics for genetically defined diseases. The company was founded in 2002 and is headquartered in Cambridge, Massachusetts.

Trials
84
Recruiting
19
Completed
43
With results
24

Continuously tracked·last revised

Data: CSV·JSON·Browse the trials

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Recruiting Phase 3

Alnylam Pharmaceuticals — Recruiting Phase 3
TrialPhaseStatusSponsorStarted
TRITON-PN: A Study to Evaluate the Efficacy and Safety of Nucresiran in Patients With Hereditary Transthyretin Amyloidosis With Polyneuropathy NCT07223203 Phase 3 Recruiting Alnylam Pharmaceuticals Started 2026-02
Zilebesiran in Patients With Hypertension Not Adequately Controlled and With Either Established Cardiovascular Disease or High Risk for Cardiovascular Disease NCT07181109 Phase 3 Recruiting Alnylam Pharmaceuticals Started 2025-09
TRITON-CM: A Study to Evaluate Nucresiran in Patients With Transthyretin Amyloidosis With Cardiomyopathy NCT07052903 Phase 3 Recruiting Alnylam Pharmaceuticals Started 2025-07
A Study to Evaluate Mivelsiran in Adult Participants With Early-Stage Down Syndrome-Associated Alzheimer's Disease (DS-AD) NCT07636811 Phase 2 Recruiting Alnylam Pharmaceuticals Started 2026-08
HMBeacon: A Phase 2 Study to Evaluate ALN-6400 in Adult and Adolescent Female Patients With VWD and HMB NCT07575308 Phase 2 Recruiting Alnylam Pharmaceuticals Started 2026-07

See all 7 →

Recently started

Alnylam Pharmaceuticals — Recently started
TrialPhaseStatusSponsorStarted
A Study to Evaluate Mivelsiran in Adult Participants With Early-Stage Down Syndrome-Associated Alzheimer's Disease (DS-AD) NCT07636811 Phase 2 Recruiting Alnylam Pharmaceuticals Started 2026-08
HMBeacon: A Phase 2 Study to Evaluate ALN-6400 in Adult and Adolescent Female Patients With VWD and HMB NCT07575308 Phase 2 Recruiting Alnylam Pharmaceuticals Started 2026-07
A Study to Evaluate ALN-6222 in Participants With Obesity NCT07624071 Phase 1 Recruiting Alnylam Pharmaceuticals Started 2026-06
A Study to Evaluate ALN-AGT01 RVR in Adult Patients With Mild to Moderate Hypertension Pretreated With Zilebesiran NCT07553442 Phase 2 Recruiting Alnylam Pharmaceuticals Started 2026-04
A Study to Evaluate ALN-4915 in Adult Healthy Volunteers NCT07535606 Phase 1 Recruiting Alnylam Pharmaceuticals Started 2026-03

See all by start date →

Results recently posted

Alnylam Pharmaceuticals — Results recently posted
TrialPhaseStatusSponsorResults posted
A Study to Evaluate Zilebesiran in Japanese Patients With Mild to Moderate Hypertension NCT06423352 Phase 1/2 Completed Alnylam Pharmaceuticals Results posted 2026-04-30
HELIOS-B: A Study to Evaluate Vutrisiran in Patients With Transthyretin Amyloidosis With Cardiomyopathy NCT04153149 Phase 3 Active, not recruiting Alnylam Pharmaceuticals Results posted 2025-10-21
Zilebesiran as Add-on Therapy in Patients With Hypertension Not Adequately Controlled by a Standard of Care Antihypertensive Medication (KARDIA-2) NCT05103332 Phase 2 Completed Alnylam Pharmaceuticals Results posted 2025-07-09
A Study to Evaluate Efficacy and Safety of ALN-AGT01 in Patients With Mild To-Moderate Hypertension NCT04936035 Phase 2 Completed Alnylam Pharmaceuticals Results posted 2024-12-27
A Study to Evaluate Lumasiran in Adults With Recurrent Calcium Oxalate Kidney Stone Disease and Elevated Urinary Oxalate Levels NCT05161936 Phase 2 Terminated Alnylam Pharmaceuticals Results posted 2024-05-22

See all 24 →

Pipeline

Phase by status

Alnylam Pharmaceuticals — Phase by status
PhaseRecruitingBy invitationActiveCompletedTerminatedWithdrawnApproved for marketingNo longer availableTotal
Phase 1 7——143——— 24
Phase 1/2 1—243——— 10
Phase 2 4—11221—— 20
Phase 3 31110———— 15
Unknown 4—232—31 15

Trials started per year

2021
2
2022
3
2023
2
2024
9
2025
5
2026
9

Conditions studied, by phase

Alnylam Pharmaceuticals — Conditions studied, by phase
ConditionPhase 1Phase 1/2Phase 2Phase 3UnknownTotal
Amyloidosis ———77 14
Amyloidosis, Hereditary, Transthyretin-Related 1——74 12
Amyloidosis, Familial 1——54 10
Amyloid Neuropathies, Familial 1—134 9
Cardiomyopathies ——153 9
Hypertension 1141— 7
Amyloid Neuropathies 1——23 6
Coproporphyria, Hereditary 1——14 6
Hyperoxaluria, Primary —1131 6
Porphyria, Acute Intermittent 21—12 6

Most active sponsors

Alnylam Pharmaceuticals — Most active sponsors
#SponsorTrialsPhase 3
1Alnylam Pharmaceuticals8415

Frequent collaborators

Alnylam Pharmaceuticals — Frequent collaborators
#CollaboratorTrials
1Hoffmann-La Roche2
2Regeneron Pharmaceuticals1
3The Medicines Company1

Most studied interventions

Alnylam Pharmaceuticals — Most studied interventions
#InterventionTrials
1patisiran12
2lumasiran7
3givosiran5
4revusiran5
5Saline Solution2
6ALN-PCS1
7Amlodipine1
8Indapamide1
9Irbesartan1
10olmesartan1

Terminations

Terminated
10
Withdrawn
1
Stopped for recruitment
2.4%2 of 84 trials

Stated reasons

Other / unclear
5
Business decision
3
Recruitment
2
COVID-19
1

Reasons are grouped from the sponsor's own wording with a rule-based classifier; the original text is shown below.

Recently stopped

Alnylam Pharmaceuticals — Recently stopped
TrialStatusStated reasonStopped
NCT05761301 Terminated Terminated Business reasons (not safety related) 2025-04-03
NCT04565717 Terminated Terminated Study ALN-HSD-001 was terminated due to business reasons and changes in the development strategy of the product. No safety issues were found. 2023-12-21
NCT03841448 Terminated Terminated Study was terminated early having identified clinically meaningful magnitude of proteinuria reduction due to cemdisiran (study goal). Participants completed DBT period\&were in OLE period. Sponsor had no concerns with safety\&integrity of participants. 2023-06-27
NCT05256810 Terminated Terminated The Sponsor elected not to continue with the study 2023-01-25
NCT05161936 Terminated Terminated Study terminated early due to low enrollment 2022-11-01
NCT03767829 Terminated Terminated The sponsor decided not to proceed with Part B for business reasons. 2020-06-25
NCT03774784 Terminated Terminated The study was terminated due to the impacts of COVID-19 on patient safety and enrollment. 2020-05-18
NCT03547297 Terminated Terminated Sponsor elected not to continue with study 2019-01-15
NCT03303313 Withdrawn Withdrawn Study terminated early due to lack of enrollment. 2018-09-12
NCT02503683 Terminated Terminated Observation of low incidence of asymptomatic, transiently elevated liver enzymes in a subset of study subjects 2018-01-03

Evidence

Results reported
55.8%24 of 43 completed
Published
2.3%1 of 43 completed
Primary endpoint met
92.3%12 of 13 analyses
Median months to report
12

Documents disclosed

Protocol available
24
Statistical analysis plan
24
PubMed citations
1

Trial profile

Median enrollment
61
Median duration
29.5months
Countries
63
Study sites
1317

Who is enrolled

Adults
83
Children
16
Older adults
75
Healthy volunteers
22

Median enrollment by phase

Phase 1
43
Phase 1/2
51
Phase 2
28
Phase 3
206
Unknown
207

Where trials run

United Kingdom
53
United States
51
France
31
Germany
28
Spain
28
Canada
27
Sweden
23
Netherlands
21
Italy
19
Australia
17

Busiest cities

Alnylam Pharmaceuticals — Busiest cities
#CityCountryTrials
1LondonUnited Kingdom49
2BostonUnited States30
3New YorkUnited States27
4BarcelonaSpain20
5RochesterUnited States20
6ChicagoUnited States19
7HoustonUnited States19
8DallasUnited States17
9PhiladelphiaUnited States17
10BaltimoreUnited States16