Completed OBSERVATIONAL NCT01344733

A Non Interventional Study to Investigating the Ratio of Mis-diagnosed Bipolar Symptoms in Patient With Major Depressive Disorder (MDD) (Improve)

A Non - Interventional Study to Investigating the Ratio of Mis-diagnosed Bipolar Symptoms in Patient Diagnosed as With Treatment Resistant Major Depressive Disorder (MDD)

Sponsor: AstraZeneca

Conditions MDD Major Depressive Disorder

Updated 7 times since 2017 Last updated: Mar 22, 2012 Started: May 31, 2011 Primary completion: Mar 31, 2012 Completion: Mar 31, 2012

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A observational or N/A phase clinical study on MDD and Major Depressive Disorder, this trial is completed. The trial is conducted by AstraZeneca and has accumulated 7 data snapshots since 2011. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

Change History

7 versions recorded

Sep 2025 — Present [monthly]

Completed
Sep 2024 — Sep 2025 [monthly]

Completed
Jul 2024 — Sep 2024 [monthly]

Completed
Jan 2021 — Jul 2024 [monthly]

Completed
Jun 2018 — Jan 2021 [monthly]

Completed

▶ Show 2 earlier versions

Apr 2018 — Jun 2018 [monthly]

Completed

Phase: NA → None
Jan 2017 — Apr 2018 [monthly]

Completed NA

First recorded

May 2011

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

AstraZeneca

Data source: AstraZeneca

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Adrano-Bronte, Italy , Agrigento, Italy , Ancona, Italy , Bolzano, Italy , Cagliari, Italy , Cantù, Italy , Capaccio, Italy , Castellammare di Stabia, Italy , Corato, Italy , Corleone, Italy and 19 more locations