Status:

WITHDRAWN

Selective PDE9 Inhibition With IMR-687 in Adults With Heart Failure With Preserved Ejection Fraction

Lead Sponsor:

Cardurion Pharmaceuticals, Inc.

Collaborating Sponsors:

Imara, Inc.

Conditions:

Heart Failure With Preserved Ejection Fraction

Eligibility:

All Genders

45+ years

Phase:

PHASE2

Brief Summary

This study is to evaluate whether 16 weeks of treatment with IMR-687 is a safe and effective treatment for patients with Heart Failure with Preserved Ejection Fraction (HFpEF). The primary objective i...

Eligibility Criteria

Inclusion

  • Males or females ≥45 years
  • Weight 60 to 160 kg, inclusive
  • LVEF ≥45% by echo within 6 months prior to Screening Visit
  • Symptoms of HFpEF requiring treatment with a diuretic(s) for at least 30 days prior to Screening
  • NYHA class II to IV at the time of Screening
  • LV hypertrophy, by echo within 6 months of screening, defined by either LV mass/BSA \>95 g/m² for females and 115 g/m² for males or LV mass/m² for males \>44 g/m2.7 for females and 48 g/m2.7 for males
  • NT-proBNP criteria either ≥300 pg/mL if in sinus rhythm or ≥700 pg/mL if in atrial fibrillation at screening
  • Elevated LV filling pressure criteria are defined as ONE OR MORE of the following:
  • HF hospitalization within 12 months prior to screening
  • LA enlargement (LA width (diameter) ≥3.8 cm, LA length ≥5.0 cm, LA area ≥20 cm² , LA volume ≥55 mL, or LA volume index \>29 mL/m²) within 6 months of screening for a participant in sinus rhythm
  • Cardiac catheterization with at least one of the following in the 12 months prior to screening: rest LVEDP or PCWP ≥15 mm Hg, exercise PCWP ≥25 mm Hg, or fluid challenge PCWP ≥18 mm Hg
  • Echocardiogram criteria of one or more within 6 months of screening for a participant in sinus rhythm: E/e' (mean of lateral and septal) \>13, E/e' lateral \>12, or E/e' septal \>14; or for a participant in atrial fibrillation: E/e' septal \>11
  • For WOCBP: Two negative pregnancy tests and the use of highly effective contraception up to 3 months following end of study

Exclusion

  • Any prior echocardiographic imaging measurement of LVEF \<40%
  • Six-minute walk test (6MWT) distance \<100 m or \>450 m at Screening Visit
  • Kansas City Cardiomyopathy Questionnaire (KCCQ) overall summary score of \>80
  • Major cardiovascular surgery, or urgent percutaneous coronary intervention (PCI) within the 3 months prior to Screening Visit, or an elective PCI within 30 days prior to Screening Visit
  • Any clinical event within 6 months prior to Screening Visit that could have reduced the LVEF (eg, myocardial infarction, coronary artery bypass graft) unless an echocardiographic measurement was performed at least 1 month after the event confirming the LVEF to be ≥45%

Key Trial Info

Start Date :

April 1 2022

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

November 1 2023

Estimated Enrollment :

Patients enrolled

Trial Details

Trial ID

NCT05312021

Start Date

April 1 2022

End Date

November 1 2023

Last Update

May 15 2025

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