Cardiomyopathy, HypertrophicPhase 2NCT00001965
Cyclosporine A to Treat Hypertrophic Cardiomyopathy (HCM)
A Phase 2 study testing Cyclosporine A in people with Cardiomyopathy, Hypertrophic and Heart Hypertrophy, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.
Trial summary
This study will examine the effectiveness of the drug cyclosporine in treating hypertrophic cardiomyopathy (HCM), a condition in which the heart muscle thickens. The thickened muscle can impair the heart's pumping action or decrease its blood supply, or both. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Cardiomyopathy, Hypertrophic, Heart Hypertrophy
- What is being tested?
- Cyclosporine A
- How many people
- 32 participants
- Where
- 1 siteUnited States
- Study dates
- Dec 1999to Feb 2001
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Patients of either gender, aged 18-75 years, with HCM caused by sarcomeric gene mutations determined by existing protocols.
LV wall thickness of greater than or equal to 20 mm measured in any LV segment by MRI.
Severe symptoms refractory to medical treatment (New York Heart Association functional class III or IV).
No LV outflow tract obstruction at rest greater than 30 mm Hg as determined by cardiac catheterization.
No coronary artery disease (greater than 50% arterial luminal narrowing of a major epicardial vessel).
No chronic atrial fibrillation.
No bleeding disorder (PTT greater than 35 sec, pro time greater than 14 sec, platelet count less than 154 k/mm(3).
No anemia (Hb less than 12.7 g/dl in males and less than 11.0 g/dl in females).
No renal impairment (serum creatinine greater than 1.3 mg/dl).
No hepatitis B or C; nor unexplained abnormal LFTs.
No inability to estimate LV wall thickness.
No positive urine pregnancy test.
No pregnant or lactating female patients.
No concurrent use of immunosuppressives or steroids.
No diabetes mellitus.
No history of malignancy other than skin tumors (squamous and basal cell) in the last 5 years.
No condition that excludes the patient from undergoing an MRI test.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Heart, Lung and Blood Institute (NHLBI)
Bethesda, Maryland, 20892
About this study
Official title: Double Blind Placebo Controlled Study of Cyclosporin A in Patients With Left Ventricular Hypertrophy Caused by Sarcomeric Gene Mutations
This study will examine the effectiveness of the drug cyclosporine in treating hypertrophic cardiomyopathy (HCM), a condition in which the heart muscle thickens. The thickened muscle can impair the heart's pumping action or decrease its blood supply, or both. Various symptoms, such as chest pain, shortness of breath, fatigue, and palpitations, may result. In animal studies, cyclosporine prevented heart muscle from thickening in mice that had been engineered to develop thick hearts.
Patients with HCM 18 to 75 years old are screened for this study under protocol 98-H-0102 and this protocol. Screening tests include blood tests, echocardiogram to measure heart thickness, Holter monitor to record heartbeats, treadmill exercise test, and various imaging tests including a thallium scan, radionuclide angiography, magnetic resonance imaging (MRI), and cardiac catheterization to examine heart function and blood supply.
Patients admitted to the study will be randomly assigned to take either cyclosporine tablets or a placebo (a look-alike tablet with no active ingredient) twice a day for 6 months. During a brief hospital stay at the start of the study, blood samples will be taken to measure cyclosporine levels. After discharge, heart rate and blood pressure will be checked and blood tests done during follow-up visits once a week for 2 weeks and then every two weeks until the end of the 6-month treatment period. At that time, patients will be hospitalized a second time for repeat tests to determine the effects of the drug on the heart condition. They include thallium scan, radionuclide angiogram, MRI, treadmill exercise test, cardiac catheterization, and echocardiogram. An echocardiogram and MRI will be repeated 1 year after the start of the study to evaluate long term effects of the drug, if any.
Read the detailed description
Hypertrophic cardiomyopathy (HCM) is a genetic cardiac disease characterized by marked increase in cardiac mass caused by proliferation/hypertrophy of several cell types (myocytes, fibroblasts, smooth muscle cells, and endothelial cells). There is often associated left ventricular (LV) diastolic dysfunction and myocardial ischemia. The severity of the LV hypertrophy, diastolic dysfunction, and myocardial ischemia are important determinants of clinical course. In several animal models of LV hypertrophy, calcineurin has been implicated in the development of myocardial hypertrophy, leading to cardiac dilatation and failure. Inhibitors of calcineurin (Cyclosporin A and FK506) have been shown to prevent the development of cardiac hypertrophy in these animal models, where cardiac hypertrophy is related to sarcomeric dysfunction. We propose to study the ability of Cyclosporin A (CsA) to reduce LV mass, and to improve symptoms, LV diastolic function, and myocardial perfusion in HCM caused by sarcomeric gene mutations.
- Conditions
- Cardiomyopathy, Hypertrophic, Heart Hypertrophy
- Being tested
- Cyclosporine A
- Keywords
- Calcineurin, Cardiac Hypertrophy, Hypertrophic Cardiomyopathy
- Medical subject headings
- Cardiomyopathy, Hypertrophic, Cardiomegaly
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Cyclosporine ADrug
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Dec 2002 (estimated)
- Study startDec 1999
- Study completionFeb 2001
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Cardiomyopathy, HypertrophicStudies of the same condition, open and under way.
- More trials run by National Heart, Lung, and Blood Institute (NHLBI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Enrolment
- 32 participants
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00001965
- Sponsor's protocol ID
- 000034
- Other IDs
- 00-H-0034
- Status last verified
- Nov 1999
- First submitted
- 18 Jan 2000
- Last updated
- 4 Mar 2008
- Results posted
- No
Publications
Spirito P, Maron BJ. Relation between extent of left ventricular hypertrophy and occurrence of sudden cardiac death in hypertrophic cardiomyopathy. J Am Coll Cardiol. 1990 Jun;15(7):1521-6. doi: 10.1016/0735-1097(90)92820-r.
PubMed 2140576Molkentin JD, Lu JR, Antos CL, Markham B, Richardson J, Robbins J, Grant SR, Olson EN. A calcineurin-dependent transcriptional pathway for cardiac hypertrophy. Cell. 1998 Apr 17;93(2):215-28. doi: 10.1016/s0092-8674(00)81573-1.
PubMed 9568714Sussman MA, Lim HW, Gude N, Taigen T, Olson EN, Robbins J, Colbert MC, Gualberto A, Wieczorek DF, Molkentin JD. Prevention of cardiac hypertrophy in mice by calcineurin inhibition. Science. 1998 Sep 11;281(5383):1690-3. doi: 10.1126/science.281.5383.1690.
PubMed 9733519
Study at a glance
From the registry record, last updated by the sponsor on 4 Mar 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Double Blind Placebo Controlled Study of Cyclosporin A in Patients With Left Ventricular Hypertrophy Caused by Sarcomeric Gene Mutations
- ClinicalTrials.gov ID
- NCT00001965
- Acronym / sponsor ID
- 000034
- Conditions
- Cardiomyopathy, Hypertrophic, Heart Hypertrophy
- Keywords
- Calcineurin, Cardiac Hypertrophy, Hypertrophic Cardiomyopathy
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 32 participants
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)US National Institutes of Health
- Study start
- Dec 1999
- Study completion
- Feb 2001
- First posted
- 10 Dec 2002 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will examine the effectiveness of the drug cyclosporine in treating hypertrophic cardiomyopathy (HCM), a condition in which the heart muscle thickens. The thickened muscle can impair the heart's pumping action or decrease its blood supply, or both. Various symptoms, such as chest pain, shortness of breath, fatigue, and palpitations, may result. In animal studies, cyclosporine prevented heart muscle from thickening in mice that had been engineered to develop thick hearts.
Patients with HCM 18 to 75 years old are screened for this study under protocol 98-H-0102 and this protocol. Screening tests include blood tests, echocardiogram to measure heart thickness, Holter monitor to record heartbeats, treadmill exercise test, and various imaging tests including a thallium scan, radionuclide angiography, magnetic resonance imaging (MRI), and cardiac catheterization to examine heart function and blood supply.
Patients admitted to the study will be randomly assigned to take either cyclosporine tablets or a placebo (a look-alike tablet with no active ingredient) twice a day for 6 months. During a brief hospital stay at the start of the study, blood samples will be taken to measure cyclosporine levels. After discharge, heart rate and blood pressure will be checked and blood tests done during follow-up visits once a week for 2 weeks and then every two weeks until the end of the 6-month treatment period. At that time, patients will be hospitalized a second time for repeat tests to determine the effects of the drug on the heart condition. They include thallium scan, radionuclide angiogram, MRI, treadmill exercise test, cardiac catheterization, and echocardiogram. An echocardiogram and MRI will be repeated 1 year after the start of the study to evaluate long term effects of the drug, if any.
Detailed description
Hypertrophic cardiomyopathy (HCM) is a genetic cardiac disease characterized by marked increase in cardiac mass caused by proliferation/hypertrophy of several cell types (myocytes, fibroblasts, smooth muscle cells, and endothelial cells). There is often associated left ventricular (LV) diastolic dysfunction and myocardial ischemia. The severity of the LV hypertrophy, diastolic dysfunction, and myocardial ischemia are important determinants of clinical course. In several animal models of LV hypertrophy, calcineurin has been implicated in the development of myocardial hypertrophy, leading to cardiac dilatation and failure. Inhibitors of calcineurin (Cyclosporin A and FK506) have been shown to prevent the development of cardiac hypertrophy in these animal models, where cardiac hypertrophy is related to sarcomeric dysfunction. We propose to study the ability of Cyclosporin A (CsA) to reduce LV mass, and to improve symptoms, LV diastolic function, and myocardial perfusion in HCM caused by sarcomeric gene mutations.
Study design
- Primary purpose
- Treatment
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Cyclosporine A | Drug | – |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 Mar 2008.
- Background: PubMed 2140576Spirito P, Maron BJ. Relation between extent of left ventricular hypertrophy and occurrence of sudden cardiac death in hypertrophic cardiomyopathy. J Am Coll Cardiol. 1990 Jun;15(7):1521-6. doi: 10.1016/0735-1097(90)92820-r.
- Background: PubMed 9568714Molkentin JD, Lu JR, Antos CL, Markham B, Richardson J, Robbins J, Grant SR, Olson EN. A calcineurin-dependent transcriptional pathway for cardiac hypertrophy. Cell. 1998 Apr 17;93(2):215-28. doi: 10.1016/s0092-8674(00)81573-1.
- Background: PubMed 9733519Sussman MA, Lim HW, Gude N, Taigen T, Olson EN, Robbins J, Colbert MC, Gualberto A, Wieczorek DF, Molkentin JD. Prevention of cardiac hypertrophy in mice by calcineurin inhibition. Science. 1998 Sep 11;281(5383):1690-3. doi: 10.1126/science.281.5383.1690.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Cyclosporine A in people with Cardiomyopathy, Hypertrophic and Heart Hypertrophy, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 4 Mar 2008. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00001965, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Mar 2008.