A Prospective Study of Anxiety, Depression, and Bipolar Disorder in People
Condition(s) studied
Study summary
This study aims to understand how anxiety disorders, depressive disorders, and bipolar disorder change over time and to identify patterns that may help with earlier recognition, diagnosis, and prediction of future symptoms.
The study will enroll approximately 2,690 participants aged 12 to 55 years across multiple hospitals in China. Participants will include people with anxiety disorders, depressive disorders, or bipolar disorder, as well as healthy volunteers for comparison.
Participants will be followed for 3 years after enrollment, with assessments at baseline and at 1, 6, 12, 18, 24, 30, and 36 months. Study assessments will collect information about symptoms, treatment, daily functioning, and quality of life. Other study data will include biological samples, brain imaging, recordings of brain electrical activity, and measurements from wearable devices and tasks involving speech, facial expressions, and eye movements.
Researchers will examine how these measurements relate to symptoms and changes in health over time. They will also develop and evaluate artificial intelligence models intended to help identify these disorders and predict treatment outcomes, relapse, and suicide or self-harm risk.
This is an observational study. The researchers will not assign treatments or change participants' treatment as part of the study. Treatments received during routine clinical care will be recorded.
Eligibility
Primary outcome measure(s)
- Macro-Averaged Area Under the ROC Curve of the Multimodal Digital Phenotyping-Based Diagnostic Model in the Independent Validation Cohort — Baseline (at enrollment in the independent validation cohort).
The model will use multimodal digital phenotyping data to identify three diagnostic labels: depressive disorders, anxiety disorders, and bipolar disorder. Reference diagnoses will be established by psychiatrists using MINI interviews and clinical diagnostic assessment. Co-occurring diagnoses will be represented according to diagnostic criteria, allowing anxiety disorders to coexist with depressive or bipolar disorders. An area under the receiver operating characteristic curve (AUC) will be calculated separately for each label. The primary measure will be the unweighted mean of the three label-specific AUCs. Healthy controls will be negative for all three labels. AUC ranges from 0 to 1, with higher values indicating better discrimination. A 95% confidence interval will be calculated using bootstrap resampling. Feature selection, tuning, and training will be completed in the development cohort, and the model will be locked before independent validation. - Change From Baseline in 17-Item Hamilton Depression Rating Scale (HAMD-17) Score — Baseline and 1, 6, 12, 18, 24, 30, and 36 months after baseline.
Depressive symptom severity will be assessed using the 17-item Hamilton Depression Rating Scale (HAMD-17). Total scores range from 0 to 52, with higher scores indicating more severe depressive symptoms. The outcome is the change in total score at each follow-up assessment relative to baseline, calculated as the follow-up score minus the baseline score. Results will be analyzed separately for the depressive disorders group and the bipolar disorder group. Negative changes indicate improvement. - Change From Baseline in 14-Item Hamilton Anxiety Rating Scale (HAMA-14) Score — Baseline and 1, 6, 12, 18, 24, 30, and 36 months after baseline.
Anxiety symptom severity will be assessed using the 14-item Hamilton Anxiety Rating Scale (HAMA-14). Each item is scored from 0 to 4, yielding a total score from 0 to 56. Higher scores indicate more severe anxiety symptoms. The outcome is the change in total score at each follow-up assessment relative to baseline, calculated as the follow-up score minus the baseline score. Negative changes indicate improvement. - Change From Baseline in Bech-Rafaelsen Mania Rating Scale (BRMS) Score in the Bipolar Disorder Group — Baseline and 1, 6, 12, 18, 24, 30, and 36 months after baseline.
Manic symptom severity in participants with bipolar disorder will be assessed using the 11-item Bech-Rafaelsen Mania Rating Scale (BRMS). Each item is scored from 0 to 4, yielding a total score from 0 to 44. Higher scores indicate more severe manic symptoms. The outcome is the change in total score at each follow-up assessment relative to baseline, calculated as the follow-up score minus the baseline score. Negative changes indicate improvement.
Trial sites (1)
| Facility | City | Region | Status |
|---|---|---|---|
| The Second Affiliated Hospital, School of Medicine, Zhejiang University | Hangzhou | Zhejiang | Recruiting |
More Second Affiliated Hospital, Zhejiang University, School of Medicine trials in China
Other trials for the same condition
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
View NCT07903246 on ClinicalTrials.gov ↗ ← All trials in China