Trials

This is a dual-bound connection. The same junction links an intervention to a trial and a trial to an intervention. Both directions share the same underlying record.

Why it matters

• a study needs clearly linked intervention records with role, blinding, and arm assignment
• reviewers need to understand how an intervention participates in the study design
• intervention updates affect trial-facing planning, arm composition, and blinding strategy
• the junction captures rich study-design context that goes beyond a simple link

Dual-bound relationship

flowchart LR
  I[Intervention] -- "role · status · blinding · arms · version" --> T[Trial]
  T -- "type · role · status · blinding · arms · version" --> I

Junction fields

From the intervention page (intervention → trial)

Column	Description
Protocol	The trial’s protocol number for quick identification
Role	The intervention’s role in the trial — e.g. investigational, comparator, placebo. Default when connecting: investigational
Status	Whether the intervention is currently active or inactive in this trial
Blinding	The blinding level for this intervention in the trial
Arms	Which trial arms this intervention is assigned to (linked arm labels)
Version	Junction version counter

From the trial page (trial → intervention)

Column	Description
Type	The intervention type — maps to interventionType dictionary
Role	Same role value as above
Status	Active / Inactive flag
Arms	Linked arm labels
Blinding	Blinding level
Version	Junction version counter

Operations

Action	From intervention page	From trial page
Connect	Pick a trial (default role: investigational)	Pick an intervention
Disconnect	Remove the trial link	Remove the intervention link
Reconnect	Update role / status / blinding / arms	Update role / status / blinding / arms

From each side

• Use Interventions for the intervention record.
• Use Trials for the study record.