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  1. A pilot study for a randomized controlled trial to prevent gastric cancer in high-risk Japanese population : Study design and feasibility evaluation.

    Article - En anglais

    Observational epidemiological studies suggest that some nutrients reduce the risk of gastric cancer and that individuals with atrophic gastritis are at high risk of developing gastric cancer.

    One possible measure for gastric cancer prevention is therefore nutritional supplementation for the high risk group.

    Before recommending this strategy for the general public, however, a randomized controlled trial (RCT) is necessary.

    To evaluate the feasibility of an RCT, the authors conducted a pilot study using recipients of a health check-up program in a general hospital in Japan.

    The subjects who were asked to participate in the trial had been diagnosed as having atrophic gastritis on the basis of serum pepsinogen I<70 ng/ml and the ratio of pepsinogen I to II<3.0. They were requested to ingest double-blinded capsules containing different levels of vitamin C and bêta-carotene every day.

    Out of the 219 subjects (118 males, 101 females) who were eligible for the study and had the required pepsinogen measurement, 90 (41%) met the criteria for atrophic gastritis.

    Among them, 55 (61%) (35 males, 20 females) gave their informed consent to participate in the RCT.

    Fifty-four participants completed a 3-month course of supplementation, and all of them agreed to a 5-year supplementation period.

    The authors concluded that an RCT using double-blinded nutritional supplements and targeting apparently healthy individuals is feasible in an intervention study for cancer prevention in Japan.

    Mots-clés Pascal : Tumeur maligne, Estomac, Anticancéreux, Gastrite atrophique, Prévention, Ascorbique acide, bêta-Carotène, Japon, Asie, Essai thérapeutique contrôlé, Randomisation, Supplémentation, Homme, Appareil digestif pathologie, Estomac pathologie, Chimioprophylaxie

    Mots-clés Pascal anglais : Malignant tumor, Stomach, Antineoplastic agent, Atrophic gastritis, Prevention, Ascorbic acid, Japan, Asia, Controlled therapeutic trial, Randomization, Supplementation, Human, Digestive diseases, Gastric disease, Chemoprophylaxis

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 96-0367339

    Code Inist : 002B02R02. Création : 10/04/1997.