Cardiovascular DiseasesNCT00005350
Evaluating Strategies to Control Hypercholesterolemia
An observational study of Cardiovascular Diseases and Heart Diseases, run by National Bureau of Economic Research, Inc..
Trial summary
To determine the cost-effectiveness of alternative strategies for cholesterol reduction. Read more about this study
- Who is it for?
- Ages Up to 100 years, men only
- Conditions the study is for
- Cardiovascular Diseases, Heart Diseases, Hypercholesterolemia
- How many people
- Not given
- Where
- No sites listed yet
- Study dates
- Apr 1991to Jan 1993
- Phase
- Observational
- 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 Up to 100 years
- Men only
- No healthy volunteers
- Child, Adult, Older adult
No eligibility criteria
About this study
To determine the cost-effectiveness of alternative strategies for cholesterol reduction.
Read the detailed description
BACKGROUND:
The availability of effective treatment for hypercholesterolemia raised the hope that millions of Americans could avoid or postpone the development of heart disease. Because the interventions were potentially effective but were also costly, the cost-effectiveness of alternative approaches to detecting and treating hypercholesterolemia had become a critical issue for health policy.
The study was part of a three-grant initiative, Cost-Effective Strategies of Cholesterol-Lowering, which was recommended by the Arteriosclerosis, Hypertension, and Lipid Metabolism Advisory Committee in January, 1988 and given concept clearance at the September, 1988 National Heart, Lung, and Blood Advisory Council. The Request for Applications was released in March, 1990 and awards made in April, 1991.
DESIGN NARRATIVE:
Assessments were made of: effects of treatment on health outcomes (symptomatic coronary heart disease, death from coronary heart disease, and mortality from all causes); costs and effectiveness of specific dietary and pharmacological interventions; effects of delays in instituting treatment; effects of changing the interval between blood cholesterol tests on the probability and duration of treatment delay; cost and health consequences of modifying screening and treatment recommendations for other risk factors, age, and gender; population implications of screening and treatment strategies. Data from the Framingham Heart Study were used to estimate the time pattern of cholesterol levels, which was fundamental to the evaluation of changing the interval between cholesterol tests. Framingham data were also used to estimate the relation of event rates to blood cholesterol levels. Several components of the analysis were validated by testing model predictions against data from the Multiple Risk Factor Intervention Trial. The cost estimates were based on several additional sources. Individual-level cost-effectiveness estimates for several different interventions were presented along with population-level projections of the consequences of alternative strategies. The significance of altering assumptions about uncertain values, such as the long-term risks and benefits of specific medications, was tested in sensitivity analyses.
- Medical subject headings
- Cardiovascular Diseases, Heart Diseases, Hypercholesterolemia
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 May 2000 (estimated)
- Study startApr 1991
- Study completionJan 1993
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 Cardiovascular DiseasesStudies of the same condition, open and under way.
- 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
- Observational
Sponsor and investigators
- Lead sponsor
- National Bureau of Economic Research, Inc.
- Sponsor type
- University, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00005350
- Sponsor's protocol ID
- 4219
- Other IDs
- R01HL046297
- Status last verified
- Dec 2015
- First submitted
- 25 May 2000
- Last updated
- 23 Dec 2015
- Results posted
- No
Publications
Browner WS, Baron RB, Solkowitz S, Adler LJ, Gullion DS. Physician management of hypercholesterolemia. A randomized trial of continuing medical education. West J Med. 1994 Dec;161(6):572-8.
PubMed 7856157Hulley SB, Newman TB, Grady D, Garber AM, Baron RB, Browner WS. Should we be measuring blood cholesterol levels in young adults? JAMA. 1993 Mar 17;269(11):1416-9.
PubMed 8441219Garber AM, Browner WS, Hulley SB. Cholesterol screening in asymptomatic adults, revisited. Part 2. Ann Intern Med. 1996 Mar 1;124(5):518-31. doi: 10.7326/0003-4819-124-5-199603010-00013.
PubMed 8602715
Study at a glance
From the registry record, last updated by the sponsor on 23 Dec 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluating Strategies to Control Hypercholesterolemia
- ClinicalTrials.gov ID
- NCT00005350
- Acronym / sponsor ID
- 4219
- Study type
- Observational
- Recruitment status
- Completed
- Lead sponsor
- National Bureau of Economic Research, Inc.University, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Study start
- Apr 1991
- Study completion
- Jan 1993
- First posted
- 26 May 2000 (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.
To determine the cost-effectiveness of alternative strategies for cholesterol reduction.
Detailed description
BACKGROUND:
The availability of effective treatment for hypercholesterolemia raised the hope that millions of Americans could avoid or postpone the development of heart disease. Because the interventions were potentially effective but were also costly, the cost-effectiveness of alternative approaches to detecting and treating hypercholesterolemia had become a critical issue for health policy.
The study was part of a three-grant initiative, Cost-Effective Strategies of Cholesterol-Lowering, which was recommended by the Arteriosclerosis, Hypertension, and Lipid Metabolism Advisory Committee in January, 1988 and given concept clearance at the September, 1988 National Heart, Lung, and Blood Advisory Council. The Request for Applications was released in March, 1990 and awards made in April, 1991.
DESIGN NARRATIVE:
Assessments were made of: effects of treatment on health outcomes (symptomatic coronary heart disease, death from coronary heart disease, and mortality from all causes); costs and effectiveness of specific dietary and pharmacological interventions; effects of delays in instituting treatment; effects of changing the interval between blood cholesterol tests on the probability and duration of treatment delay; cost and health consequences of modifying screening and treatment recommendations for other risk factors, age, and gender; population implications of screening and treatment strategies. Data from the Framingham Heart Study were used to estimate the time pattern of cholesterol levels, which was fundamental to the evaluation of changing the interval between cholesterol tests. Framingham data were also used to estimate the relation of event rates to blood cholesterol levels. Several components of the analysis were validated by testing model predictions against data from the Multiple Risk Factor Intervention Trial. The cost estimates were based on several additional sources. Individual-level cost-effectiveness estimates for several different interventions were presented along with population-level projections of the consequences of alternative strategies. The significance of altering assumptions about uncertain values, such as the long-term risks and benefits of specific medications, was tested in sensitivity analyses.
Study design
Who may qualify
- Ages
- Up to 100 years
- Sex
- Male only
- 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.
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 23 Dec 2015.
- Background: PubMed 7856157Browner WS, Baron RB, Solkowitz S, Adler LJ, Gullion DS. Physician management of hypercholesterolemia. A randomized trial of continuing medical education. West J Med. 1994 Dec;161(6):572-8.
- Background: PubMed 8441219Hulley SB, Newman TB, Grady D, Garber AM, Baron RB, Browner WS. Should we be measuring blood cholesterol levels in young adults? JAMA. 1993 Mar 17;269(11):1416-9.
- Background: PubMed 8602715Garber AM, Browner WS, Hulley SB. Cholesterol screening in asymptomatic adults, revisited. Part 2. Ann Intern Med. 1996 Mar 1;124(5):518-31. doi: 10.7326/0003-4819-124-5-199603010-00013.
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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.
Questions about this trial
What is this clinical trial studying?
An observational study of Cardiovascular Diseases and Heart Diseases, run by National Bureau of Economic Research, Inc..
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 23 Dec 2015. 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.
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 NCT00005350, 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 23 Dec 2015.