Comparing two medications for treating anhedonia in major depression

Efficacy and Safety of Toludesvenlafaxine Hydrochloride Sustained-release Tablets Versus Desvenlafaxine Succinate Sustained-release Tablets Targeting Anhedonia in Patients With Major Depression Disorder: a Multicentre, Open-label, Parallel-group, Randomised Controlled Trial

Not applicable Interventional Jiangsu Province Nanjing Brain Hospital · NCT06270433

This study tests whether a new medication can help people with major depression who have trouble feeling pleasure, comparing it to a different medication over eight weeks.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment80 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorJiangsu Province Nanjing Brain Hospital Academic / other
Locations1 site (Nanjing, Jiangsu)
Trial IDNCT06270433 on ClinicalTrials.gov

What this trial studies

This study evaluates the efficacy and safety of toludesvenlafaxine hydrochloride sustained-release tablets compared to desvenlafaxine succinate sustained-release tablets in patients with major depression disorder experiencing anhedonia. It involves 80 participants aged 18 to 65 who meet DSM-5 criteria for major depression. Patients are randomly assigned to receive one of the two medications for an 8-week period, with follow-ups at 2, 4, and 8 weeks to assess treatment outcomes and record any adverse events.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 65 diagnosed with major depression disorder and experiencing significant anhedonia.

Not a fit: Patients with severe self-injury or psychotic disorders, or those allergic to the study medications, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective treatment option for patients suffering from anhedonia associated with major depression.

How similar studies have performed: While this specific comparison may be novel, similar studies evaluating the efficacy of antidepressants have shown promising results.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subjects meet the diagnostic criteria for major depression disorder in the Diagnostic and Statistical Manual of Manual Disorders, fifth Edition (DSM-5);
* Male or female aged ≥18 and ≤65 years;
* Subjects who have a Montgomery-Asberg Depression Rating Scale (MADRS) total score ≥24 points;
* Subjects who have a total score of Snaith-Hamilton Pleasure Scale (SHARPS) ≥3 points;
* Subjects voluntarily participate in the study and sign the informed consent form.

Exclusion Criteria:

* Allergic or known to be allergic to toludesvenlafaxine hydrochloride sustained-release tablets and desvenlafaxine succinate sustained-release tablets;
* Subjects have a severe self-injury/clear suicide attempt or behavior; Scores on MADRS items factor 10 ≥4 points;
* Subjects who meet the diagnostic criteria for any other psychotic disorders (except for major depression disorder) in DSM-5, or those who have substance disorders or drug abuse within the past six months;
* Individuals with severe and unstable physical diseases such as cardiovascular disease, liver disease, kidney disease, blood disorders, and endocrine disorders;
* Hypertensive patients with poor blood pressure control (systolic blood pressure (SBP) ≥140 mmHg or diastolic blood pressure (DBP) ≥90 mmHg at screening);
* Total bilirubin (TBIL) values 1.5 times / alanine aminotransferase (ALT) or aspartate aminotransferase (AST) 2 times / creatinine (Cr) 1.2 times higher than the upper limit of normal, or Thyroid-stimulating hormone (TSH) outside the normal range at screening;
* Electrocardiogram (ECG) abnormalities that are clinically significant at period of screening and that the investigator considers as inappropriate conditions for inclusion, such as QTc interval \>450 ms in men and QTc interval \>460 ms in female;
* Pregnant or lactating women, recent planned pregnancy and unable to ensure effective contraception during the period;
* Other conditions that the investigator considers the participant is not suitable for the study.

Where this trial is running

Nanjing, Jiangsu

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Anhedonia
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.