A Study to Evaluate Efficacy and Safety of Toludesvenlafaxine Hydrochloride Sustained-release Tablets in Generalized Anxiety Disorder.

This study is evaluating a drug called toludesvenlafaxine hydrochloride sustained-release tablets for the treatment of generalized anxiety disorder (GAD). GAD is a condition where a person experiences persistent and difficult-to-control worry and anxiety that interferes with daily life. The study is testing whether this medication is effective and safe for adults with moderate to severe GAD. **You may be eligible if...** - You are between 18 and 65 years old - You have been diagnosed with generalized anxiety disorder (GAD) based on standard diagnostic criteria (DSM-5) - Your anxiety is moderate to severe, as measured by standard clinical scales (HAMA score ≥ 21 and CGI-S score ≥ 4) - You have significant anxious mood and tension as key symptoms **You may NOT be eligible if...** - You have another major psychiatric disorder such as depression (within the last 6 months), schizophrenia, bipolar disorder, OCD, PTSD, or an eating disorder - You have a history of substance or alcohol abuse in the last 6 months - Your anxiety is caused by a physical illness or another mental health condition - You are currently taking certain psychiatric medications without an adequate washout period - You have had brain surgery for psychiatric conditions - You are pregnant or planning to become pregnant Talk to your doctor to see if this trial is right for you.