Mental health studies with practical context.

Researchers assign a treatment, tool, therapy, procedure, or program.

Researchers observe participants without assigning a treatment.

Intervention filters apply to interventional studies. Observational studies remain included.

Studies involving medicines or drug treatments.

Studies involving a tool, app, wearable, test, or medical device.

Studies involving psychotherapy, behavioural programs, or other non-drug approaches.

Other interventions, such as procedures or approaches not listed above.

Early testing, mainly focused on safety and dosage.

Tests whether a treatment may work and continues assessing safety.

Larger studies comparing effectiveness and monitoring safety.

Studies medicines after approval to monitor their effects.

Studies without a standard drug trial phase, or where the phase is not reported.