double blinded study

double blinded study

Double-masked design Clinical research A clinical trial in which neither the Pt nor the researcher know which arm–eg a gold standard therapy, an experimental, or placebo–of the study the Pt has been placed, preventing, theoretically, Pt or researcher bias. See Bias, Blinding, Triple blinding; Cf Anecdotal.
References in periodicals archive ?
The IC study population will be comprised of 150 patients with Fontaine class lib; Rutherford category 2-3 in a dose escalation, placebo controlled, double blinded study.