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Cardiovascular DiseasesPhase 3NCT00000482

Coronary Drug Project

A Phase 3 study testing estrogen, clofibrate clofibrate and dextrothyroxine sodium in people with Cardiovascular Diseases and Coronary Disease, run by National Heart, Lung, and Blood Institute (NHLBI).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To determine whether regular administration of lipid modifying drugs (clofibrate, nicotinic acid, estrogen, dextrothyroxine) to men with a documented myocardial infarction would result in significant reduction in total mortality over a five year period. Read more about this study

Who is it for?
Ages 30 to 64 years, men only
What is being tested?
estrogen, clofibrate clofibrate and dextrothyroxine sodium
How many people
Not given
Where
No sites listed yet
Study dates
Apr 1965to Mar 1985
Phase
Phase 3
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 30 to 64 years
  • Men only
  • No healthy volunteers
  • Adult

Men, ages 30-64. Three months beyond most recent myocardial infarction.

About this study

To determine whether regular administration of lipid modifying drugs (clofibrate, nicotinic acid, estrogen, dextrothyroxine) to men with a documented myocardial infarction would result in significant reduction in total mortality over a five year period. Secondarily, to determine whether the degree to which these drugs changed serum lipids was correlated with any effect on mortality and morbidity rates; to gain further information on the long-term prognosis of myocardial infarction (by studying the control group as intensively as the treatment group); to acquire further experience and knowledge concerning the techniques and methodology of long-term clinical trials; to determine, in a substudy, the effectiveness of aspirin, a platelet inhibitor, in reducing recurrences of myocardial infarction.

Read the detailed description

BACKGROUND:

Correlation of high levels of serum cholesterol with an increased incidence and prevalence of coronary heart disease (CHD) was demonstrated--prior to the inception of the Coronary Drug Project--repeatedly in prospective and cross-sectional epidemiological surveys (e.g., the Tecumseh Study, the Framingham Heart Disease Study). These findings led to the question of whether long-term lowering of serum lipids in individuals both with and without CHD would have a beneficial effect on morbidity and mortality.

The Coronary Drug Project was designed to answer the question of secondary prevention. In 1961, Dr. Robert Wilkins (Boston University School of Medicine) chaired an ad hoc committee which determined the desirability and feasibility of the conduct of this study. Following National Heart Advisory Council (NHAC) support, a study Policy Board, Steering Committee, and Coordinating Center were established and a detailed protocol was written.

In 1964, NHAC approved the project and the NHI recommendation for implementation; the study was begun in 1965. Supported by the grant mechanism, the trial involved 53 participating clinics, a coordinating center, central laboratory, ECG center, drug procurement and distribution center, and NHI medical liaison office, and a policy board, steering committee, and 12 other committees (e.g., a data and safety monitoring committee).

The first patient was randomly allocated to treatment in March 1966 and the last in October 1969. Each patient reported to the clinic every 4 months for a follow-up visit.

DESIGN NARRATIVE:

Randomized, double-blind, fixed sample. A total of 8,341 patients were randomly assigned to six treatment groups consisting of 2.5 mg/day of conjugated estrogens, 5.0 mg/day of conjugated estrogens, 1.8 gm/day of clofibrate, 6.0 mg/day of dextrothyroxine sodium, 3.0 gm/day of niacin, or 3.8 gm/day of lactose placebo.

The study completion date listed in this record was obtained from the Query/View/Report (QVR) System.

Being tested
estrogen, clofibrate clofibrate, dextrothyroxine sodium, niacin
Medical subject headings
Cardiovascular Diseases, Coronary Disease, Heart Diseases, Myocardial Infarction, Myocardial Ischemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • estrogenDrug

  • clofibrate clofibrateDrug

  • dextrothyroxine sodiumDrug

  • niacinDrug

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Oct 1999 (estimated)
  2. Study startApr 1965
  3. Study completionMar 1985

Resources

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 3
Primary purpose
Prevention
Allocation
Randomised
Masking
Double blind
IDs, dates and publications
ClinicalTrials.gov ID
NCT00000482
Sponsor's protocol ID
1
Other IDs
R01HL008888-14
Status last verified
Jul 2004
First submitted
27 Oct 1999
Last updated
26 Nov 2013
Results posted
No

Publications

  • Coronary Drug Project Enters Enrollment Phase (Medical News). JAMA, 200:37-38, l967.

  • Parsons, W. Coronary Drug Project Deserves Support of Nation's Physicians. Cardiology Digest, January l967, pp. l3-l6.

  • Coronary Drug Project, Publication l695. National Heart Institute, Public Health Service, l968.

  • Coronary Drug Project Research Group: Control of Hyperlipidemia: 4. Progress in Drug Trials of Secondary Prevention with Particular Reference to the Coronary Drug Project, in Jones, R.J. (ed), Atherosclerosis (Proceedings of the Second International Symposium). New York, Springer-Verlag, l970, pp. 586-595.

  • The Coronary Drug Project. Initial findings leading to modifications of its research protocol. JAMA. 1970 Nov 16;214(7):1303-13. No abstract available.

    PubMed 4320008
  • Heart Drug Project Yields Good Results (Medical News). JAMA, 2l3:954-956, l970.

  • The coronary drug project. Findings leading to further modifications of its protocol with respect to dextrothyroxine. The coronary drug project research group. JAMA. 1972 May 15;220(7):996-1008. No abstract available.

    PubMed 4337170
  • Coronary Drug Project Research Group: The Natural History of Myocardial Infarction in the Coronary Drug Project: Prognostic Indicators Following Infarction, in Tibblin, G., Keys, A., Werko, L. (eds), Preventive Cardiology, Stockholm, Almqvist & Wiksell, l972, pp. 54-64.

  • The prognostic importance of the electrocardiogram after myocardial infarction. Experience in the Coronary Drug Project. Ann Intern Med. 1972 Nov;77(5):677-89. doi: 10.7326/0003-4819-77-5-677. No abstract available.

    PubMed 4117098
  • The coronary drug project. Design, methods, and baseline results. Circulation. 1973 Mar;47(3 Suppl):I1-50. doi: 10.1161/01.cir.47.3s1.i-1. No abstract available.

    PubMed 4570454
  • Prognostic importance of premature beats following myocardial infarction. Experience in the coronary drug project. JAMA. 1973 Mar 5;223(10):1116-24. doi: 10.1001/jama.1973.03220100016005. No abstract available.

    PubMed 4119817
  • The Coronary Drug Project. Findings leading to discontinuation of the 2.5-mg day estrogen group. The coronary Drug Project Research Group. JAMA. 1973 Nov 5;226(6):652-7. No abstract available.

    PubMed 4356847
  • Left ventricular hypertrophy patterns and prognosis. Experience postinfarction in the Coronary Drug Project. Circulation. 1974 May;49(5):862-9. doi: 10.1161/01.cir.49.5.862. No abstract available.

    PubMed 4275188
  • Factors influencing long-term prognosis after recovery from myocardial infarction--three-year findings of the coronary drug project. J Chronic Dis. 1974 Aug;27(6):267-85. doi: 10.1016/0021-9681(74)90091-5. No abstract available.

    PubMed 4610000
  • The prognostic importance of premature ventricular complexes in the late post-infarction period. Experience in the Cornary Drug Project. Acta Cardiol. 1974;Suppl 18:33-53. No abstract available.

    PubMed 4138758

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing estrogen, clofibrate clofibrate and dextrothyroxine sodium in people with Cardiovascular Diseases and Coronary Disease, run by National Heart, Lung, and Blood Institute (NHLBI).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Nov 2013. Status can change between updates, so confirm with the study contact before making plans.

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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 NCT00000482, which also lists 34 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 26 Nov 2013.

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