Blinding in Clinical Trials
4. Types of Blinding
Type |
Description |
Unblinded or open label |
All are aware of the treatment(s) |
Single blind or single-masked |
The participants are blinded but no one else is |
Double blind or double-masked |
The participants and clinicians / data collectors are blinded |
Triple blind |
The participants, clinicians / data collectors and outcome adjudicators / data analysts are blinded |