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AzTrials

CHDNCT00289237

Lifestyle Intervention in a General Population for Prevention of Ischaemic Heart Disease

A study testing Lifestyle intervention in people with CHD and AMI, run by Glostrup University Hospital, Copenhagen at 1 site in Denmark.

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

In spite of declining trend coronary heart disease (CHD) is still a leading cause of morbidity and mortality. Many years of epidemiological research have identified several risk factors for CHD. Read more about this study

Who is it for?
Ages 30 to 60 yearsHealthy volunteers can take part
Conditions the study is for
CHD, AMI, CVD
What is being tested?
Lifestyle intervention
Could I receive a placebo?
No, everyone receives an active treatment
How many people
61,301 participants
Where
1 siteDenmark
Study dates
Mar 1999to Mar 2011
Phase
Interventional
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 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • All citizens in a predefined area

Who cannot join

  • Drug abuse
  • Language problem

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Research Centre for Prevention and Health

    Glostrup Municipality, 2600

Other trials in Denmark

About this study

Official title: A Randomised Non-pharmacological Intervention Study for Prevention of Ischaemic Heart Disease Inter99

In spite of declining trend coronary heart disease (CHD) is still a leading cause of morbidity and mortality. Many years of epidemiological research have identified several risk factors for CHD. The main causes are physical inactivity and inappropriate diet (mediated through high blood pressure, high cholesterol and fatness) and smoking. So far intervention studies on lifestyle factors have shown disappointing results, most probably due to insufficient interventions and methodology.

Inter99 is a randomized non-pharmacological intervention study comprising 61,301 persons representing a well-defined population. About 13,000 are invited for a health examination and assessment of risk for CHD. Those at high risk are offered lifestyle intervention in three waves over a five year period. A priori the group is divided into a high intensive and low intensive intervention group. The remaining 48.285 individuals serve as control.

Read more

After five years all individuals who attended the base-line examination are re-invited to assess the effect of the intervention on intermediate end-points as lifestyle, absolute risk of CHD and biological risk factors. The total cohort (61.301) is followed through central registers to evaluate the effect of the intervention on use of the health care system and the long term effect on incidence of CHD.

The status for the project is that the four waves of intervention have been performed, the last follow-up was in March 2006.

Data collection finalized with 10 years follow-up via Central National Registries and a questionnaire. No further follow-up is scheduled for the main purposes of the study.

Analyses as regard the primary effect (on incidence of cardiovascular diseases) and secondary effect (on incidence of type 2 diabetes) are on-going. Analyses for a large number of spin off project are on-going.

More than 25 Ph.d. studies and more than 200 peer-review publication have so far been produced.

Summary of results, links to articles and theses at: www.Inter99.dk

Read the detailed description

In spite of declining trend coronary heart disease (CHD) is still a leading cause of morbidity and mortality. Many years of epidemiological research have identified several risk factors for CHD. The main causes are physical inactivity and inappropriate diet (mediated through high blood pressure, high cholesterol and fatness) and smoking. So far intervention studies on lifestyle factors have shown disappointing results.

Inter99 is a randomized non-pharmacological intervention study comprising 61,301 persons representing a well-defined population. About 13,000 are invited for a health examination and assessment of risk for CHD. Those at high risk are offered lifestyle intervention in three waves over a five year period. A priori the group is divided into a high intensive and low intensive intervention group. The remaining 48.285 individuals serve as control.

After five years all individuals who attended the base-line examination are re-invited to assess the effect of the intervention on intermediate end-points as lifestyle, absolute risk of CHD and biological risk factors. The total cohort (61.301) is followed through central registers to evaluate the effect of the intervention on use of the health care system and the long term effect on incidence of CHD.

Being tested
Lifestyle intervention
Keywords
Lifestyle intervention, Behavioural changes, CHD, Type 2 diabetes
Medical subject headings
Diabetes Mellitus, Type 2

What participants receive

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

  • Lifestyle interventionBehavioural

Study groups in NCT00289237
Study groupRoleWhat they receive
High intensity intervention groupExperimentalLifestyle intervention consisted of 15-30 minutes of individual lifestyle counselling + offer of participation in group-based lifestyle counselling (½ year). This offer was given at baseline to all participants in the group. Persons at high risk of IHD: offer additionally given at 1- and 3-year follow-up
Receives: Behavioral: Lifestyle intervention
Low intensity intervention groupExperimentalLifestyle intervention consisted of 15-30 minutes of individual lifestyle counselling. This offer was given at baseline to all participants in the group. Persons at high risk of IHD: offer additionally given at 1- and 3-year follow-up
Receives: Behavioral: Lifestyle intervention
Control groupNo interventionQuestionnaires regarding lifestyle and general health were sent to all participants in this group. The importance of healthy lifestyle was not mentioned, and no intervention was offered.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of CHD and other lifestyle related diseases after ten years

    Ongoing analyses in National Central Registers (Oct 2012)

    Measured: 2012

Secondary outcomes (1)
  1. Changes in lifestyle and biological markers after one, three and five years

    Analyses completed. Results at: www.Inter99.dk

    Measured: 2006

Timeline

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

  1. First posted9 Feb 2006 (estimated)
  2. Study startMar 1999
  3. Primary completionMar 2006
  4. Study completionMar 2011

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 N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
61,301 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00289237
Sponsor's protocol ID
RCPH - 99-1
Status last verified
Oct 2012
First submitted
19 Sep 2005
Last updated
3 Oct 2012
Results posted
No

Publications

  • Glumer C, Jorgensen T, Borch-Johnsen K; Inter99 study. Prevalences of diabetes and impaired glucose regulation in a Danish population: the Inter99 study. Diabetes Care. 2003 Aug;26(8):2335-40. doi: 10.2337/diacare.26.8.2335.

    PubMed 12882858
  • Husemoen LL, Thomsen TF, Fenger M, Jorgensen HL, Jorgensen T. Contribution of thermolabile methylenetetrahydrofolate reductase variant to total plasma homocysteine levels in healthy men and women. Inter99 (2). Genet Epidemiol. 2003 May;24(4):322-30. doi: 10.1002/gepi.10239.

    PubMed 12687650
  • Jorgensen ME, Glumer C, Bjerregaard P, Gyntelberg F, Jorgensen T, Borch-Johnsen K; Grennland Population Study. Obesity and central fat pattern among Greenland Inuit and a general population of Denmark (Inter99): relationship to metabolic risk factors. Int J Obes Relat Metab Disord. 2003 Dec;27(12):1507-15. doi: 10.1038/sj.ijo.0802434.

    PubMed 14634682
  • Jorgensen T, Borch-Johnsen K, Thomsen TF, Ibsen H, Glumer C, Pisinger C. A randomized non-pharmacological intervention study for prevention of ischaemic heart disease: baseline results Inter99. Eur J Cardiovasc Prev Rehabil. 2003 Oct;10(5):377-86. doi: 10.1097/01.hjr.0000096541.30533.82.

    PubMed 14663300
  • Nielsen EM, Hansen L, Echwald SM, Drivsholm T, Borch-Johnsen K, Ekstrom CT, Hansen T, Pedersen O. Evidence for an association between the Leu162Val polymorphism of the PPARalpha gene and decreased fasting serum triglyceride levels in glucose tolerant subjects. Pharmacogenetics. 2003 Jul;13(7):417-23. doi: 10.1097/01.fpc.0000054105.48725.5c.

    PubMed 12835617
  • Glumer C, Carstensen B, Sandbaek A, Lauritzen T, Jorgensen T, Borch-Johnsen K; inter99 study. A Danish diabetes risk score for targeted screening: the Inter99 study. Diabetes Care. 2004 Mar;27(3):727-33. doi: 10.2337/diacare.27.3.727.

    PubMed 14988293
  • Glumer C, Jorgensen T, Borch-Johnsen K. Targeted screening for undiagnosed diabetes reduces the number of diagnostic tests. Inter99(8). Diabet Med. 2004 Aug;21(8):874-80. doi: 10.1111/j.1464-5491.2004.01260.x.

    PubMed 15270791
  • Hansen SK, Gjesing AP, Rasmussen SK, Glumer C, Urhammer SA, Andersen G, Rose CS, Drivsholm T, Torekov SK, Jensen DP, Ekstrom CT, Borch-Johnsen K, Jorgensen T, McCarthy MI, Hansen T, Pedersen O. Large-scale studies of the HphI insulin gene variable-number-of-tandem-repeats polymorphism in relation to Type 2 diabetes mellitus and insulin release. Diabetologia. 2004 Jun;47(6):1079-87. doi: 10.1007/s00125-004-1418-3. Epub 2004 May 29.

    PubMed 15170498
  • Johansen A, Nielsen EM, Andersen G, Hamid YH, Jensen DP, Glumer C, Drivsholm T, Borch-Johnsen K, Jorgensen T, Hansen T, Pedersen O. Large-scale studies of the functional K variant of the butyrylcholinesterase gene in relation to Type 2 diabetes and insulin secretion. Diabetologia. 2004 Aug;47(8):1437-41. doi: 10.1007/s00125-004-1459-7. Epub 2004 Jul 17.

    PubMed 15258737
  • Andersen KL, Echwald SM, Larsen LH, Hamid YH, Glumer C, Jorgensen T, Borch-Johnsen K, Andersen T, Sorensen TI, Hansen T, Pedersen O. Variation of the McKusick-Kaufman gene and studies of relationships with common forms of obesity. J Clin Endocrinol Metab. 2005 Jan;90(1):225-30. doi: 10.1210/jc.2004-0465. Epub 2004 Oct 13.

    PubMed 15483080
  • Husemoen LL, Thomsen TF, Fenger M, Jorgensen T. Effect of lifestyle factors on plasma total homocysteine concentrations in relation to MTHFR(C677T) genotype. Inter99 (7). Eur J Clin Nutr. 2004 Aug;58(8):1142-50. doi: 10.1038/sj.ejcn.1601942.

    PubMed 15054427
  • Kessel L, Hougaard JL, Mortensen C, Jorgensen T, Lund-Andersen H, Larsen M. Visual acuity and refractive errors in a suburban Danish population: Inter99 Eye Study. Acta Ophthalmol Scand. 2004 Feb;82(1):19-24. doi: 10.1111/j.1395-3907.2004.0179.x.

    PubMed 14738485
  • Andersen G, Wegner L, Yanagisawa K, Rose CS, Lin J, Glumer C, Drivsholm T, Borch-Johnsen K, Jorgensen T, Hansen T, Spiegelman BM, Pedersen O. Evidence of an association between genetic variation of the coactivator PGC-1beta and obesity. J Med Genet. 2005 May;42(5):402-7. doi: 10.1136/jmg.2004.026278.

    PubMed 15863669
  • Andersen G, Wegner L, Jensen DP, Glumer C, Tarnow L, Drivsholm T, Poulsen P, Hansen SK, Nielsen EM, Ek J, Mouritzen P, Vaag A, Parving HH, Borch-Johnsen K, Jorgensen T, Hansen T, Pedersen O. PGC-1alpha Gly482Ser polymorphism associates with hypertension among Danish whites. Hypertension. 2005 Apr;45(4):565-70. doi: 10.1161/01.HYP.0000158946.53289.24. Epub 2005 Feb 28.

    PubMed 15738346
  • Hansen SK, Nielsen EM, Ek J, Andersen G, Glumer C, Carstensen B, Mouritzen P, Drivsholm T, Borch-Johnsen K, Jorgensen T, Hansen T, Pedersen O. Analysis of separate and combined effects of common variation in KCNJ11 and PPARG on risk of type 2 diabetes. J Clin Endocrinol Metab. 2005 Jun;90(6):3629-37. doi: 10.1210/jc.2004-1942. Epub 2005 Mar 29.

    PubMed 15797964

Questions about this trial

What is this clinical trial studying?

A study testing Lifestyle intervention in people with CHD and AMI, run by Glostrup University Hospital, Copenhagen at 1 site in Denmark.

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

Who may be eligible to take part?

The sponsor lists 1 inclusion and 2 exclusion criteria. 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 3 Oct 2012. 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 Denmark. 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.

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.

What does the primary outcome measure?

Incidence of CHD and other lifestyle related diseases after ten years (time frame: 2012). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00289237, which also lists 54 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 3 Oct 2012.

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