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Interleukin-1 Blockade in Recently Decompensated Heart Failure

Interleukin-1 Blockade in Recently Decompensated Heart Failure: A Randomized Placebo-controlled Double-blinded Study

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01936909
Acronym
RED-HART
Enrollment
60
Registered
2013-09-06
Start date
2014-02-28
Completion date
2016-09-23
Last updated
2017-12-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Heart Failure

Brief summary

The RED-HART is a randomized double-blinded placebo-controlled study of Anakinra (IL-1 blocker) in patients with recently decompensated heart failure to determine the safety and efficacy in terms of aerobic exercise capacity and ventilatory efficiency measured with a cardiopulmonary exercise test.

Interventions

DRUGAnakinra (weeks 1-2)

Anakinra 100 mg daily for weeks 1 and 2

DRUGAnakinra (weeks 3-12)
DRUGPlacebo

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
Virginia Commonwealth University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
21 Years to 130 Years
Healthy volunteers
No

Inclusion criteria

All 6 criteria need to be met for enrollment of the patient in the study 1. Primary diagnosis for hospitalization is decompensated heart failure established as the finding at admission of all 2 conditions listed below: 1. dyspnea or respiratory distress or tachypnea at rest or with minimal exertion; 2. evidence of elevated cardiac filling pressure or pulmonary congestion (at least one of the conditions must be met); * pulmonary congestion/edema at physical exam OR chest X-Ray; * plasma Brain Natriuretic Peptide (BNP) levels ≥200 pg/ml; * invasive measurement of left ventricular end-diastolic pressure \>18 mmHg or of pulmonary artery occluding pressure (wedge) \>16 mmHg. 2. The patient has a prior documentation of impaired left ventricular systolic function (ejection fraction \<50%) at most recent assessment by any imaging modality (within 12 months). 3. The patient is now clinically stable and meets standard criteria for hospital discharge as documented by all the 3 conditions listed below: 1. absence of dyspnea or pulmonary congestion/distress at rest; 2. absence of pitting edema in the lower extremities, or in any other region; 3. stable hemodynamic parameters (blood pressure, heart rate). 4. The patient is of age ≥21 years old, and is willing and able to provide written informed consent. 5. The patient is willing and able to comply with the protocol (i.e. self administration of the treatment, and exercise protocol). 6. The patient has screening plasma C-reactive protein levels \>2 mg/L.

Exclusion criteria

Subjects will not be eligible if they meet any of the following 15

Design outcomes

Primary

MeasureTime frameDescription
Interval Changes in Peak Oxygen Consumption (VO2)Baseline to 2 weeksInterval changes in peak oxygen consumption (VO2) after 2 weeks of anakinra treatment.

Secondary

MeasureTime frameDescription
Quality of Life Improvement12 weeksThe Duke Activity Status Index questionnaire will be completed at enrollment and 12 weeks. The scale ranges from 0 (unable to perform any tasks) to 58.20 (able to perform all tasks). Higher scores represent increased ability to perform daily activities and may be interpreted as improved quality of life.
Death or Hospital Admission for Heart Failure24 weeksWe will monitor survival and hospitalization for heart failure throughout the 24 week follow-up

Countries

United States

Participant flow

Participants by arm

ArmCount
Anakinra (Short)
Anakinra 100 mg daily for 2 weeks, followed by placebo for 10 weeks Anakinra (weeks 1-2): Anakinra 100 mg daily for weeks 1 and 2
20
Anakinra (Long)
Anakinra 100 mg daily for 12 weeks Anakinra (weeks 1-2): Anakinra 100 mg daily for weeks 1 and 2 Anakinra (weeks 3-12)
20
Placebo
Placebo injections daily for 12 weeks Placebo
20
Total60

Baseline characteristics

CharacteristicAnakinra (Long)PlaceboAnakinra (Short)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
3 Participants5 Participants4 Participants12 Participants
Age, Categorical
Between 18 and 65 years
17 Participants15 Participants16 Participants48 Participants
Age, Continuous53.5 years59.5 years55 years56.5 years
Region of Enrollment
United States
20 participants20 participants20 participants60 participants
Sex: Female, Male
Female
6 Participants6 Participants5 Participants17 Participants
Sex: Female, Male
Male
14 Participants14 Participants15 Participants43 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
1 / 160 / 181 / 18
other
Total, other adverse events
0 / 160 / 180 / 18
serious
Total, serious adverse events
7 / 163 / 187 / 18

Outcome results

Primary

Interval Changes in Peak Oxygen Consumption (VO2)

Interval changes in peak oxygen consumption (VO2) after 2 weeks of anakinra treatment.

Time frame: Baseline to 2 weeks

Population: Patients who completed baseline and 2 week exercise evaluation

ArmMeasureGroupValue (MEDIAN)
Anakinra (Short)Interval Changes in Peak Oxygen Consumption (VO2)Baseline14.05 mL/kg/min
Anakinra (Short)Interval Changes in Peak Oxygen Consumption (VO2)2 weeks14.85 mL/kg/min
Anakinra (Long)Interval Changes in Peak Oxygen Consumption (VO2)Baseline14.45 mL/kg/min
Anakinra (Long)Interval Changes in Peak Oxygen Consumption (VO2)2 weeks14.45 mL/kg/min
PlaceboInterval Changes in Peak Oxygen Consumption (VO2)Baseline13.3 mL/kg/min
PlaceboInterval Changes in Peak Oxygen Consumption (VO2)2 weeks12.65 mL/kg/min
Comparison: This test reflects a comparison between baseline and 2 weeks (both rows).p-value: >0.2ANOVA
Secondary

Death or Hospital Admission for Heart Failure

We will monitor survival and hospitalization for heart failure throughout the 24 week follow-up

Time frame: 24 weeks

Population: All analyses were restricted to patients with a minimum of 2 weeks follow-up.

ArmMeasureValue (NUMBER)
Anakinra (Short)Death or Hospital Admission for Heart Failure4 participants
Anakinra (Long)Death or Hospital Admission for Heart Failure1 participants
PlaceboDeath or Hospital Admission for Heart Failure3 participants
p-value: 0.12Log Rank
Secondary

Quality of Life Improvement

The Duke Activity Status Index questionnaire will be completed at enrollment and 12 weeks. The scale ranges from 0 (unable to perform any tasks) to 58.20 (able to perform all tasks). Higher scores represent increased ability to perform daily activities and may be interpreted as improved quality of life.

Time frame: 12 weeks

Population: Patients with baseline and follow-up data

ArmMeasureGroupValue (MEDIAN)
Anakinra (Short)Quality of Life ImprovementBaseline26.95 units on a scale
Anakinra (Short)Quality of Life Improvement12 weeks37.575 units on a scale
Anakinra (Long)Quality of Life ImprovementBaseline23.45 units on a scale
Anakinra (Long)Quality of Life Improvement12 weeks34.45 units on a scale
PlaceboQuality of Life ImprovementBaseline22.825 units on a scale
PlaceboQuality of Life Improvement12 weeks28.7 units on a scale
Comparison: Paired analysis versus baselinep-value: <0.01Wilcoxon (Mann-Whitney)

Source: ClinicalTrials.gov · Data processed: Feb 25, 2026