A Study of the Effect of IW-1973 on the Exercise Capacity of Patients With Heart Failure With Preserved Ejection Fraction (HFpEF)



Status:Recruiting
Conditions:Cardiology
Therapuetic Areas:Cardiology / Vascular Diseases
Healthy:No
Age Range:45 - Any
Updated:4/5/2019
Start Date:November 7, 2017
End Date:September 2019
Contact:Stella Ibebunjo, PhD
Email:IIbebunjo@cyclerion.com
Phone:857-338-3308

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A Multicenter, Randomized, Double-blind, Placebo-controlled, Phase 2 Study Evaluating the Safety and Efficacy of Different Doses of IW-1973 Over 12 Weeks in Patients With Heart Failure With Preserved Ejection Fraction

The objective of the CAPACITY-HFpEF study is to evaluate the safety and efficacy of IW-1973
compared with placebo when administered daily for approximately 12 weeks to patients with
HFpEF. The study will evaluate the effect of oral IW-1973 on peak exercise capacity in
patients with HFpEF, with or without permanent or persistent atrial fibrillation.


Inclusion Criteria:

1. Patient is an ambulatory male or female ≥45 years old at the Screening Visit

2. Patient has heart failure with ejection fraction (EF) of ≥40%

3. Patient has a peak VO2 measuring <80% of age- and sex-adjusted normal values

4. Patient has evidence in medical history supporting clinical heart failure syndrome
consisting of at least 1 of the following:

1. Hospitalization or emergency department visit for heart failure within the past
year

2. Elevated B-type natriuretic peptide (BNP) or N-terminal pro b-type natriuretic
peptide (NT-proBNP) within the past 6 months

3. Echocardiographic evidence within the past 12 months of at least 2 of the
following: left ventricular (LV) hypertrophy, left atrial (LA) enlargement, or
diastolic dysfunction

4. Hemodynamic evidence of elevated filling pressures

5. Patient meets at least 2 of the following criteria at the Screening Visit:

1. Diagnosis of type 2 diabetes mellitus or prediabetes

2. History of hypertension

3. Body mass index (BMI) >30 kg/m2

4. Age ≥70 years

Exclusion Criteria:

1. Patient has had acute coronary syndrome or percutaneous coronary intervention within
30 days before Randomization

2. Patient has had cardiac transplantation or has cardiac transplantation planned during
the study

3. Patient has had cardiac artery bypass graft, cardiac mechanical support implantation,
or other cardiac surgery in the 3 months before the Screening Visit or planned during
the study

4. Patient has severe chronic obstructive coronary disease as defined by chronic oxygen
dependence

5. Patient had had heart failure hospitalization with discharge within 30 days before the
Screening Visit

6. Patient has a history of clinically significant hypersensitivity or allergies to any
of the inactive ingredients contained in the active or placebo drug products

7. Patient has previously received IW-1973 in a study, or received an investigational
drug during the 30 days or 5 half lives of that investigational drug (whichever is
longer) before the Screening Visit, or is planning to receive another investigational
drug at any time during the study

8. Patient is taking specific inhibitors of phosphodiesterase 5 (PDE5), nonspecific
inhibitors of PDE5, any supplements for the treatment of erectile dysfunction,
riociguat, or nitrates or nitric oxide (NO) donors in any form

9. Patient is taking strong cytochrome P450 3A (CYP3A) inhibitors

10. Women of childbearing potential must have a negative pregnancy test prior to
randomization and must agree to use protocol-specified contraception from the
Screening Visit through 60 days after the final dose of study drug

11. Male patients must be surgically sterile by vasectomy (conducted ≥60 days before the
Screening Visit or confirmed via sperm analysis) or must agree to use
protocol-specified contraception from the Screening Visit through 60 days after the
final dose of study drug

12. Other exclusion criteria per protocol
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