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Related Experiment Videos

Consent to open label extension studies: some ethical issues.

P Wainwright

    Journal of Medical Ethics
    |December 7, 2002
    PubMed
    Summary
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    Open label extension studies in pharmaceutical research offer continued access to new drugs. However, ethical considerations regarding patient consent and potential bias in clinical trials require careful examination.

    Area of Science:

    • Pharmaceutical research
    • Clinical trial methodology
    • Medical ethics

    Background:

    • Open label extension studies are common in pharmaceutical research.
    • These studies allow participants of double-blind placebo-controlled trials to continue taking the study drug.
    • Patients receive the active substance regardless of their initial trial assignment.

    Purpose of the Study:

    • To explore the ethical implications of open label extension studies.
    • To address concerns regarding patient consent and potential bias in clinical trials.

    Main Methods:

    • Review of ethical considerations in pharmaceutical research.
    • Analysis of consent procedures in open label extension studies.
    • Examination of potential ascertainment bias in clinical trials.
    Keywords:
    Biomedical and Behavioral Research

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    Main Results:

    • Investigators often delay unblinding patient assignments to prevent bias.
    • Arguments suggest patients need to know their trial arm for informed consent.
    • Recruiting certain patient groups into extension studies may raise ethical concerns.

    Conclusions:

    • Open label extension studies present complex ethical challenges.
    • Ensuring informed consent and mitigating bias are critical.
    • Further ethical review is needed for patient recruitment in extension studies.