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StrokeNCT00342992

Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study

An observational study of Stroke and Diabetes Mellitus, run by National Cancer Institute (NCI) at 1 site in Finland.

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

The project is a passive follow-up of the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study cohort. Originally, this was a large, randomized, double-blind, placebo-controlled, 2x2 factorial primary prevention trial testing the effects of alpha-tocopherol and beta-carotene supplementation on cancer… Read more about this study

Who is it for?
Ages 50 to 69 years, men only
Conditions the study is for
Stroke, Diabetes Mellitus, Heart Disease
How many people
29,133 participants
Where
1 siteFinland
Study dates
3 Mar 1995to 4 Sep 2020
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 50 to 69 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Study population: Male smokers in Southwestern Finland

Who may be able to join

  • Current smokers (five or more cigarettes per day at study entry) from Southwestern Finland.

Who cannot join

  • Females
  • Proven malignancy (except nonmelanoma skin cancer or cancer in situ)
  • Severe angina pectoris
  • Chronic renal insufficiency
  • Cirrhosis of the liver
  • Chronic alcoholism
  • Anticoagulant therapy
  • Use of supplements containing vitamin E greater than 20 mg/day, or vitaming A greater than 20,000 IU/day, or beta-carotene greater than 6 mg/day

Trial locations and contacts

1 site in 1 country.

Finland1 site
  • National Institute of Health and Welfare, Helsinki, Finland

    Helsinki

Other trials in Finland

About this study

Official title: Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study (ATBC Study) Population

The project is a passive follow-up of the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study cohort. Originally, this was a large, randomized, double-blind, placebo-controlled, 2x2 factorial primary prevention trial testing the effects of alpha-tocopherol and beta-carotene supplementation on cancer incidence and mortality. The study was conducted in Finland as a collaboration between the U.S. National Cancer Institute (NCI) and the National Public Health Institute of Finland. NCI has maintained passive surveillance of the cohort through Finnish national registries, including the cancer registry.

The primary purpose of the ATBC cohort follow-up is to use the existing risk factor data and biological specimens (i.e., serum, whole blood, DNA, red blood cells, and toenails) to test hypotheses relevant to cancer etiology, survival, early detection, and prevention. These data and biospecimens continue to provide an invaluable resource for the study of biochemical, nutritional, genetic, and molecular hypotheses. These analyses are made all the more informative and powerful by the addition of cases identified annually during the follow-up period, and the research benefits from a longer pre-diagnosis period (now over 30 years).

Read the detailed description

The ATBC study was a randomized, double-blind, placebo-controlled, primary prevention trial to determine whether daily supplementation with a-tocopherol, beta-carotene, or both would reduce the incidence of lung or other cancers among male smokers. Between 1985 and 1988, 29,133 men ages 50 to 69 years, who smoked at least five cigarettes per day, were recruited from southwestern Finland. Participants were randomly assigned to receive either a-tocopherol as dl-a-tocopheryl acetate (50 mg/day), beta-carotene as all-trans-beta-carotene (20 mg/day), both supplements, or placebo capsules for 5-8 years (median 6.1 years) through April 30, 1993. Post-intervention follow-up has continued through the Finnish Cancer Registry and other national registries, and epidemiological analyses continue to be conducted.

Keywords
Vitamin E, Micronutrients, Genetics, Smoking, Biomarkers
Medical subject headings
Stroke, Diabetes Mellitus, Heart Diseases, Neoplasms, Smoking

What participants receive

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

Study groups in NCT00342992
Study groupRoleWhat they receive
Healthy VolunteersMale smokers in Southwestern Finland

What is being measured

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

  1. Cancer

    Annual linkage with Finnish Cancer Registry

    Measured: Annually

Secondary outcomes (1)
  1. Causes of mortality

    Measured: Anually

Timeline

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

  1. First posted21 Jun 2006 (estimated)
  2. Study start3 Mar 1995
  3. Primary completion4 Sep 2020
  4. Study completion4 Sep 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
29,133 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00342992
Sponsor's protocol ID
999995012
Other IDs
OH95-C-N012
Status last verified
Sep 2020
First submitted
19 Jun 2006
Last updated
9 Sep 2020
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • The alpha-tocopherol, beta-carotene lung cancer prevention study: design, methods, participant characteristics, and compliance. The ATBC Cancer Prevention Study Group. Ann Epidemiol. 1994 Jan;4(1):1-10. doi: 10.1016/1047-2797(94)90036-1.

    PubMed 8205268
  • Alpha-Tocopherol, Beta Carotene Cancer Prevention Study Group. The effect of vitamin E and beta carotene on the incidence of lung cancer and other cancers in male smokers. N Engl J Med. 1994 Apr 14;330(15):1029-35. doi: 10.1056/NEJM199404143301501.

    PubMed 8127329
  • Heinonen OP, Albanes D, Virtamo J, Taylor PR, Huttunen JK, Hartman AM, Haapakoski J, Malila N, Rautalahti M, Ripatti S, Maenpaa H, Teerenhovi L, Koss L, Virolainen M, Edwards BK. Prostate cancer and supplementation with alpha-tocopherol and beta-carotene: incidence and mortality in a controlled trial. J Natl Cancer Inst. 1998 Mar 18;90(6):440-6. doi: 10.1093/jnci/90.6.440.

    PubMed 9521168
  • Zhang T, Moore SC, Fu S, Albanes D, Liao LM, Loftfield E, Playdon MC, Weinstein SJ, Yu K, Stolzenberg-Solomon RZ. Metabolomic profiling of genotype-derived ABO blood group, secretor status, and Lewis antigens and association with pancreatic ductal adenocarcinoma risk. Am J Epidemiol. 2026 Jun 3;195(6):1572-1584. doi: 10.1093/aje/kwag055.

    PubMed 41804787
  • Etievant L, Gail MH, Albanes D. Disentangling discordant vitamin D associations with prostate cancer incidence and fatality in a large, nested case-control study. Int J Epidemiol. 2024 Aug 14;53(5):dyae110. doi: 10.1093/ije/dyae110.

    PubMed 39180769
  • Huang J, Hodis HN, Weinstein SJ, Mack WJ, Sampson JN, Mondul AM, Albanes D. Serum Metabolomic Response to Low- and High-Dose Vitamin E Supplementation in Two Randomized Controlled Trials. Cancer Epidemiol Biomarkers Prev. 2020 Jul;29(7):1329-1334. doi: 10.1158/1055-9965.EPI-20-0187. Epub 2020 Apr 20.

    PubMed 32312759
  • Hemila H. Vitamin E and Mortality in Male Smokers of the ATBC Study: Implications for Nutritional Recommendations. Front Nutr. 2020 Mar 31;7:36. doi: 10.3389/fnut.2020.00036. eCollection 2020.

    PubMed 32296711
  • Hemila H. The effect of beta-carotene on the mortality of male smokers is modified by smoking and by vitamins C and E: evidence against a uniform effect of nutrient. J Nutr Sci. 2020 Mar 11;9:e11. doi: 10.1017/jns.2020.3.

    PubMed 32215208
  • Lai GY, Wang JB, Weinstein SJ, Parisi D, Horst RL, McGlynn KA, Mannisto S, Albanes D, Freedman ND. Association of 25-Hydroxyvitamin D with Liver Cancer Incidence and Chronic Liver Disease Mortality in Finnish Male Smokers of the ATBC Study. Cancer Epidemiol Biomarkers Prev. 2018 Sep;27(9):1075-1082. doi: 10.1158/1055-9965.EPI-17-0877. Epub 2018 May 2.

    PubMed 29720370
  • Playdon MC, Moore SC, Derkach A, Reedy J, Subar AF, Sampson JN, Albanes D, Gu F, Kontto J, Lassale C, Liao LM, Mannisto S, Mondul AM, Weinstein SJ, Irwin ML, Mayne ST, Stolzenberg-Solomon R. Identifying biomarkers of dietary patterns by using metabolomics. Am J Clin Nutr. 2017 Feb;105(2):450-465. doi: 10.3945/ajcn.116.144501. Epub 2016 Dec 28.

    PubMed 28031192
  • Miranti EH, Freedman ND, Weinstein SJ, Abnet CC, Selhub J, Murphy G, Diaw L, Mannisto S, Taylor PR, Albanes D, Stolzenberg-Solomon RZ. Prospective study of serum cysteine and cysteinylglycine and cancer of the head and neck, esophagus, and stomach in a cohort of male smokers. Am J Clin Nutr. 2016 Sep;104(3):686-93. doi: 10.3945/ajcn.115.125799. Epub 2016 Aug 17.

    PubMed 27534643
  • Lai GY, Weinstein SJ, Taylor PR, McGlynn KA, Virtamo J, Gail MH, Albanes D, Freedman ND. Effects of alpha-tocopherol and beta-carotene supplementation on liver cancer incidence and chronic liver disease mortality in the ATBC study. Br J Cancer. 2014 Dec 9;111(12):2220-3. doi: 10.1038/bjc.2014.514. Epub 2014 Oct 14.

    PubMed 25314069
  • Moy KA, Mondul AM, Zhang H, Weinstein SJ, Wheeler W, Chung CC, Mannisto S, Yu K, Chanock SJ, Albanes D. Genome-wide association study of circulating vitamin D-binding protein. Am J Clin Nutr. 2014 Jun;99(6):1424-31. doi: 10.3945/ajcn.113.080309. Epub 2014 Apr 16.

    PubMed 24740207
  • Mondul AM, Sampson JN, Moore SC, Weinstein SJ, Evans AM, Karoly ED, Virtamo J, Albanes D. Metabolomic profile of response to supplementation with beta-carotene in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study. Am J Clin Nutr. 2013 Aug;98(2):488-93. doi: 10.3945/ajcn.113.062778. Epub 2013 Jun 26.

    PubMed 23803886
  • Major JM, Yu K, Chung CC, Weinstein SJ, Yeager M, Wheeler W, Snyder K, Wright ME, Virtamo J, Chanock S, Albanes D. Genome-wide association study identifies three common variants associated with serologic response to vitamin E supplementation in men. J Nutr. 2012 May;142(5):866-71. doi: 10.3945/jn.111.156349. Epub 2012 Mar 21.

    PubMed 22437554

Questions about this trial

What is this clinical trial studying?

An observational study of Stroke and Diabetes Mellitus, run by National Cancer Institute (NCI) at 1 site in Finland.

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 8 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 9 Sep 2020. 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 Finland. 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?

Cancer (time frame: Annually). 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 NCT00342992, which also lists 20 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 9 Sep 2020.

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