What is Unblinding?

Unblinding is the process of revealing a participant's assigned treatment in a blinded clinical trial. It is performed only under predefined circumstances outlined in the study protocol, such as medical emergencies, safety concerns, or at specific stages of the trial after data collection is complete.

Unblinding is used when access to treatment assignment is necessary to protect participant safety or to support protocol-defined study activities. In emergency situations, investigators may need to determine whether a participant received the investigational treatment or control to guide appropriate medical care.

Depending on the study design, unblinding may occur for an individual participant, a specific study site, or the entire trial. Every unblinding event is typically documented and controlled to maintain study integrity and regulatory compliance.

Clinion RTSM supports both planned and emergency unblinding through secure, protocol-defined workflows. During study setup, study teams can configure unblinding rules, authorized user roles, approval requirements, and access permissions based on the study protocol.

In the event of a medical emergency, authorized investigators can perform emergency unblinding through the system to immediately access a participant's treatment assignment when necessary for clinical decision-making. Every unblinding event is automatically recorded with the reason, user details, date, and time, providing a complete audit trail while helping maintain study integrity and regulatory compliance.

A participant in a blinded clinical trial experiences a serious medical emergency that requires immediate treatment decisions. The investigator requests emergency unblinding through the RTSM system, which reveals the participant's treatment assignment to the authorized user while automatically recording the reason, user details, and time of the request in the audit trail.

Blinding

Double-Blind Study

Randomization

Treatment Arm

Investigational Medicinal Product (IMP)

Audit Trail

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