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Clinical trials drive the development of medicine. However, little is known about the current status of clinical trials on addiction. This study aimed to provide a comprehensive analysis of registered addiction-related trials from ClinicalTrials.gov. We examined all addiction-related trials registered on ClinicalTrials.gov up to March 23, 2020. Statistical analysis was performed by using SPSS 25.0, and a two-sided p <.05 was considered statistically significant. 370 eligible trials were identified. Over half of trials were completed, while only 13.8% of trials reported results. Sample sizes varied a lot with a median number of 84 per trial. Universities were the primary sponsor for 164 (44.3%) trials, followed by hospitals (96, 26.0%). Compared to trials without results, more trials with results were sponsored by universities (62.7% vs. 41.4%, p =.003), and conducted in United States/Canada (90.2% vs. 48.3%, p <.001). Most interventional trials were randomized with a parallel assignment, and 56.3% were blinded. Thirty one (41.3%) observational trials were cohort studies and 12 (16.0%) were case-only studies. Interventional trials were more likely to be funded by the US Government, while more observational trials were supported by industries. Trials funded by the US Government were more likely to be completed than those funded by other sources (p =.009). Most registered trials on ClinicalTrials.gov about addiction were interventional trials with purpose for treatment. Most interventional trials were randomized, parallel, and masked. Our analysis highlighted the need for improvement in completing study results on the ClinicalTrials.gov. [ABSTRACT FROM AUTHOR]

Objective: To investigate the prevalence rates of depression anxiety and suicidal ideation among Chinese general hospital inpatients and to identify the potential associations with sociodemographics. Method: A cross-sectional survey was applied in a Chinese general hospital. A questionnaire set, including sociodemographic variables, Patient Health Questionnaire-9 (PHQ-9), and the Generalized Anxiety Disorder Scale-7 (GAD-7), was completed by the participants. Clinically significant depression (CSD) and clinically significant anxiety (CSA) were defined as a score above 10 on the two scales. CSD and CSA are proxy measures but not specific diagnoses of mental disorders. Results: Data from 1329 patients were included in the final analysis. 422 (31.8%) reported clinically significant depressive symptoms, 83 (6.3%) reported frequent suicidal ideation, and 204 (15.3%) reported clinically significant anxiety. Household income was negatively associated with CSD. Inpatients with lower household incomes and educational levels had higher rates of CSA. Middle-aged inpatients were more prone to suicidal ideation, and stable marital status was related to less suicidal ideation. Conclusion: Depression, anxiety, and suicidal ideation were determined to be common psychological problems in Chinese inpatients. Chinese medical personnel must pay attention to the mental health conditions of inpatients, particularly inpatients with lower income, educational levels, and poor marital status. This is one of the first studies focusing on the prevalence of depression and anxiety in Chinese hospitalized inpatients in non-psychiatric departments of a general hospital. The PHQ-9 and GAD-7 were determined to be potential screening tools to aid Chinese medical workers in recognizing depression and anxiety in nonpsychiatric departments. The prevalence of depression, anxiety and suicidal ideation was observed to be relatively high in inpatients, which requires more attention from Chinese clinicians. [ABSTRACT FROM AUTHOR]