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AZD3427

Phase 2

Pulmonary Hypertension (World Health Organization Group 2) | Small molecule | Cardiovascular |AstraZeneca PLC|Last Updated: Sep 24, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment260
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05737940A Study of AZD3427 in Participants With Heart Failure and Pulmonary Hypertension Group 2PHASE2 COMPLETED 260Apr 24, 2023Aug 25, 2025Sep 24, 202560 United States, Austria +12
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Study Endpoints
Primary Endpoints
Change from baseline in Pulmonary Vascular Resistance (PVR)
Baseline to Week 25

To evaluate the effect of AZD3427 on PVR parameter compared with placebo as measured by right heart catheterization (RHC) after 24 weeks of treatment in participants with HF and PH Group 2.

Secondary Endpoints
Change from baseline in Mean pulmonary arterial pressure (mPAP)
Baseline to Week 25
Change from baseline in Pulmonary artery wedge pressure (PAWP)
Baseline to Week 25
Change from baseline in cardiac output
Baseline to Week 25
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
AZD3427 Dose AEXPERIMENTALThe participants will receive single dose of AZD3427 Dose A every 2 weeks for 24 weeks from Day 1 to Day 155.
AZD3427 Dose BEXPERIMENTALThe participants will receive single dose of AZD3427 Dose B every 2 weeks for 24 weeks from Day 1 to Day 155.
AZD3427 Dose CEXPERIMENTALThe participants will receive single dose of AZD3427 Dose C every 2 weeks for 24 weeks from Day 1 to Day 155.
PlaceboPLACEBO_COMPARATORThe participants will receive single dose of placebo every 2 weeks for 24 weeks from Day 1 to Day 155.
Interventions
NameTypeDescription
AZD3427DRUGThe participants will receive AZD3427 SC injection single dose of either Dose A or Dose B or Dose C every 2 weeks for 24 weeks.
PlaceboDRUGThe participants will receive SC injection of placebo single dose every 2 weeks for 24 weeks.
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Eligibility Criteria
Age Range18 Years — 130 Years
SexALL
Healthy VolunteersNo
Study Sites60

Inclusion criteria: 1. Participant must be ≥ 18 years of age inclusive. 2. Participants must have a pre-existing diagnosis of HF, NYHA function class (FC) II to IV, and a pre-existing diagnosis of PH-LHD or likely or intermediate probability of Pulmonary hypertension due to left heart disease (PH-L...

Countries:United StatesAustriaCanadaChinaCzechiaDenmarkGermanyItalyJapanNetherlandsPolandSpainSwedenUnited Kingdom
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