Open-label trial
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Through Signs and symptoms
Open-label trials may be appropriate for comparing two similar treatments to determine which is most effective, such as a comparison of different prescription anticoagulants, or possible relief from symptoms of some disorders when a placebo is given.
An open-label trial may still be randomized. Open-label trials may also be uncontrolled (without a placebo group), with all participants receiving the same treatment.
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TonneMetric unit of mass equivalent to 1,000 kilograms or 1 megagramPeer reviewEvaluation by peers with similar expertiseSolar massStandard unit of mass in astronomyMinute and second of arcUnits for measuring anglesClinical trialPhase of clinical research in medicineBar (unit)Unit of pressure equal to 100,000 Pa