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Ivabradine in the Management of Cardiac Autonomic Dysfunction Associated With Thoracic Radiation Therapy.

Ivabradine in the Management of Cardiac Autonomic Dysfunction Associated With Thoracic Radiation Therapy.

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03137537
Enrollment
23
Registered
2017-05-02
Start date
2018-02-27
Completion date
2020-11-18
Last updated
2022-02-10

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

Conditions

Autonomic Imbalance, Cancer Survivorship, Lymphoma

Keywords

Lymphoma, Abnormal resting heart rate, Autonomic imbalance, Cancer survivorship

Brief summary

This study will explore whether ivabradine lowers heart rate, and thus improves exercise capacity, in survivors of lymphoma who have an elevated resting heart rate as a side effect of prior radiation treatment. The drugs involved in this study are: * Ivabradine * Placebo

Detailed description

This research study is a Phase II clinical trial. Phase II clinical trials test the safety and effectiveness of an investigational intervention to learn whether the intervention works in treating a specific disease. Investigational means that the intervention is being studied. This research study is a Pilot Study, which is the first time investigators are examining this study intervention for this particular problem. In this research study, the investigators are studying a drug called ivabradine. The investigators are exploring whether ivabradine can be used to reduce heart rate, increase exercise duration, and improve quality of life in survivors of lymphoma who received radiation to their chest as a part of their cancer treatment. The U.S. Food and Drug Administration (FDA) has not approved ivabradine for this specific disease, but it has approved the drug as an oral medication to lower heart rate in heart failure patients. Survivors of lymphoma who were treated with neck and/or chest radiation can have an elevated resting heart rate and an abnormal rate of decline in their heart rate after exercise, also known as cardiac autonomic dysfunction. These abnormalities can limit exercise duration and worsen quality of life in some radiation treated survivors of lymphoma

Interventions

DRUGIvabradine

lower heart rate in heart failure patients.

DRUGPlacebo Oral Tablet

Procedure prescribed to compare the active effect of a medicine.

Sponsors

Amgen
CollaboratorINDUSTRY
Dana-Farber Cancer Institute
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Survivors of mediastinal lymphoma (either Non-Hodgkin's Lymphoma or Hodgkin's Lymphoma) with no active malignancy * Prior mediastinal or mantle radiation ≥ 5 years prior to enrollment in the study * Age 18-80 years. * Participants must have normal organ function as defined below: * AST(SGOT)/ALT(SGPT) ≤2.5 × institutional upper limit of normal * creatinine clearance ≥ 15 mL/min/1.73 m2 for participants with creatinine levels above institutional normal. * Normal sinus rhythm with resting heart rate ≥ 80 bpm on screening EKG * Based on findings in animals, ivabradine may cause fetal harm when administered to a pregnant woman. For this reason, women of child-bearing potential must agree to use adequate contraception. * Ability to understand and the willingness to sign a written informed consent document

Exclusion criteria

* Participants who are receiving any other investigational agents. * History of allergic reaction to ivabradine. * Participants receiving any medications or substances that are inhibitors or inducers of cytochrome P450 3A4 are ineligible. * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, acute coronary syndrome, symptomatic known coronary artery disease, severe valvular heart disease, active malignancy, or psychiatric illness/social situations that would limit compliance with study requirements. * Pregnant women are excluded from this study because ivabradine is an agent with the potential for teratogenic effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with ivabradine, breastfeeding should be discontinued if the mother is treated with ivabradine. * HIV-positive participants on combination antiretroviral therapy. * Patients with systolic blood pressure \< 90 mm Hg. * Patients with sick-sinus syndrome, sino-atrial block, third degree heart block, atrial fibrillation, and those with permanent pacemakers. * Patients with other established indications for ivabradine: stable, symptomatic chronic HF with a left ventricular ejection fraction ≤ 35% and in sinus rhythm with a resting HR ≥ 70 bpm, who are taking maximally tolerated doses of beta-blockers or have contraindications to beta-blocker use. * Patients with severe hepatic dysfunction (Child Pugh Class C). * Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier.

Design outcomes

Primary

MeasureTime frameDescription
To Investigate Whether Ivabradine Lowers Resting HR, Compared To Placebo, In Survivors Of Lymphoma6 weeksCalculate the change in resting HR (from Holter monitor data) from baseline to 6 weeks for each patient in the study. Then compare the median change with ivabradine to the median change with placebo.

Secondary

MeasureTime frameDescription
To Evaluate Whether Ivabradine Improves Exercise Duration, Compared To Placebo, In Survivors Of Lymphoma6 weeksCalculate the change in exercise duration (from exercise treadmill stress tests) from baseline to 6 weeks for each patient in the study. Then compare the median change in exercise duration with ivabradine to the median change in exercise duration with placebo.

Other

MeasureTime frameDescription
To Evaluate Whether Ivabradine Improves Additional Markers of Cardiac Sympatho-vagal Balance, Compared To Placebo, In Survivors Of Lymphoma6 weeksCalculate the change in cardiac autonomic function (from cardiac autonomic function testing) from baseline to 6 weeks in one half of the patients in the study (n=30)
To Evaluate Whether Ivabradine Improves Health Related Quality Of Life Compared To Placebo, In Survivors Of Lymphoma6 weeksCalculate the change in health related quality of life (from SF-36 quality of life surveys) from baseline to 6 weeks for each patient in the study (n=60)

Countries

United States

Participant flow

Participants by arm

ArmCount
Ivabradine
* Ivabradine will be administered for a total of 6 weeks * Ivabradine is taken orally twice daily * Dosage will be adjusted according to physician determination Ivabradine: lower heart rate in heart failure patients.
12
Placebo Oral Tablet
* Placebo will be administered for a total of 6 weeks * Placebo is taken orally twice daily * Dosage will be adjusted according to physician determination Placebo Oral Tablet: Procedure prescribed to compare the active effect of a medicine.
11
Total23

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event01

Baseline characteristics

CharacteristicIvabradinePlacebo Oral TabletTotal
Age, Continuous60 years52 years56 years
Beta-blocker at baseline6 Participants6 Participants12 Participants
Ejection Fraction, %61 %63 %63 %
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants11 Participants21 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
12 Participants11 Participants23 Participants
Resting heart rate90 bpm93 bpm91 bpm
Sex: Female, Male
Female
9 Participants10 Participants19 Participants
Sex: Female, Male
Male
3 Participants1 Participants4 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 120 / 11
other
Total, other adverse events
3 / 121 / 11
serious
Total, serious adverse events
0 / 120 / 11

Outcome results

Primary

To Investigate Whether Ivabradine Lowers Resting HR, Compared To Placebo, In Survivors Of Lymphoma

Calculate the change in resting HR (from Holter monitor data) from baseline to 6 weeks for each patient in the study. Then compare the median change with ivabradine to the median change with placebo.

Time frame: 6 weeks

Population: Analyzed all patients who had data available at baseline and at 6 weeks

ArmMeasureValue (MEDIAN)
IvabradineTo Investigate Whether Ivabradine Lowers Resting HR, Compared To Placebo, In Survivors Of Lymphoma-13 bpm
Placebo Oral TabletTo Investigate Whether Ivabradine Lowers Resting HR, Compared To Placebo, In Survivors Of Lymphoma-1 bpm
p-value: <0.001Wilcoxon (Mann-Whitney)
Secondary

To Evaluate Whether Ivabradine Improves Exercise Duration, Compared To Placebo, In Survivors Of Lymphoma

Calculate the change in exercise duration (from exercise treadmill stress tests) from baseline to 6 weeks for each patient in the study. Then compare the median change in exercise duration with ivabradine to the median change in exercise duration with placebo.

Time frame: 6 weeks

ArmMeasureValue (MEDIAN)
IvabradineTo Evaluate Whether Ivabradine Improves Exercise Duration, Compared To Placebo, In Survivors Of Lymphoma0.4 minutes
Placebo Oral TabletTo Evaluate Whether Ivabradine Improves Exercise Duration, Compared To Placebo, In Survivors Of Lymphoma-0.1 minutes
p-value: 0.63Wilcoxon (Mann-Whitney)
Other Pre-specified

To Evaluate Whether Ivabradine Improves Additional Markers of Cardiac Sympatho-vagal Balance, Compared To Placebo, In Survivors Of Lymphoma

Calculate the change in cardiac autonomic function (from cardiac autonomic function testing) from baseline to 6 weeks in one half of the patients in the study (n=30)

Time frame: 6 weeks

Other Pre-specified

To Evaluate Whether Ivabradine Improves Health Related Quality Of Life Compared To Placebo, In Survivors Of Lymphoma

Calculate the change in health related quality of life (from SF-36 quality of life surveys) from baseline to 6 weeks for each patient in the study (n=60)

Time frame: 6 weeks

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026