Study: NCT06659094

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: stepped-care Internet-based cognitive behavioral therapy(SC-ICBT)
Description: Using a WeChat mini-program, we offer personalized OCD SC-ICBT remote services. Training is customized based on individual assessments, focusing on psychological education and homework to simulate CBT therapy. If a patient's YBOCS score drop from baseline isn't 25% after four therapist sessions (one week of theory, two sessions/week), they get three more weeks of online guidance.~The program includes four structured lessons over six weeks:~Lesson 1: Psychological Health Education on OCD and related disorders. Lesson 2: ERP theory, exposure item lists, and related info. Lesson 3: Daily ERP practice for about an hour, followed by two weeks of therapist guidance.~Lesson 4: Retrospection and relapse prevention.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Cognitive Behavioral Group Therapy (CBGT)
Description: The CBGT group will receive cognitive-behavioral group therapy for 6 weeks, twice a week, each session lasting 2 hours, at the Shanghai Mental Health Center. The CBGT program follows a structured process for treating OCD. During the prep phase, therapists assess patients for 50 minutes, collect data, and set CBGT groundwork. In Session 1, families join to understand CBGT, with goals reinforced and OCD education provided. Session 2 reviews homework and develops ERP strategies. Session 3 initiates ERP practice. Sessions 4-11 continue homework review and group ERP practice. The final session involves families in a review, discussing challenges, celebrating achievements, and focusing on relapse prevention.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: conventional medical treatment (TAU)
Description: Drug therapy, managed by a deputy chief psychiatrist unaware of patient groupings, utilizes China Food and Drug Administration (CFDA)-approved SSRIs for OCD. These include fluoxetine, paroxetine, sertraline, fluvoxamine, and others, with tricyclic drugs like clomipramine and SNRIs such as venlafaxine. The maximum dosage adheres to the instructions. Benzodiazepines may assist with sleep, but usage is capped at two weeks; no other psychotropics are co-administered. Common side effects comprise dry mouth, constipation, nausea, indigestion, dizziness, fatigue, and sweating. The maximum dosage shall not exceed the maximum dosage prescribed in the instruction manual.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: conventional medical treatment (TAU)
Description: Drug therapy, managed by a deputy chief psychiatrist unaware of patient groupings, utilizes China Food and Drug Administration (CFDA)-approved SSRIs for OCD. These include fluoxetine, paroxetine, sertraline, fluvoxamine, and others, with tricyclic drugs like clomipramine and SNRIs such as venlafaxine. The maximum dosage adheres to the instructions. Benzodiazepines may assist with sleep, but usage is capped at two weeks; no other psychotropics are co-administered. Common side effects comprise dry mouth, constipation, nausea, indigestion, dizziness, fatigue, and sweating. The maximum dosage shall not exceed the maximum dosage prescribed in the instruction manual.