Compare the Efficacy and Safety of KH607 Tablets Versus Vortioxetine Hydrobromide Tablets in Adult Patients With Major Depressive Disorder

Phase 3Not Yet RecruitingNCT07741331

Chengdu Kanghong Pharmaceutical Group Co., Ltd.326 enrolled

Overview

This trial includes a short-term study and a long-term study. The short-term study is a multicenter, randomized, double-Blind, double-Dummy, Parallel-Controlled study with a 6-week duration. The long-term study is a withdrawal follow-up study; participants meeting relapse criteria may receive one cycle of KH607 Tablets treatment.

This trial consists of two parts: a short-term study and a long-term study. The short-term study adopts a multicenter, randomized, double-blind, double-Dummy parallel-group design, including a 14-day screening period, 6-week double-blind treatment period; the experimental group receives KH607 tablets for 3 weeks, followed by KH607 placebo for 3 weeks; the control group receives vortioxetine hydrobromide tablets for 6 weeks. In the long-term study, participants will return to the study site for follow-up every 4 weeks for up to 24 weeks. Those who do not meet relapse criteria will receive no antidepressant treatment, while participants meeting relapse criteria will be treated with KH607 Tablets for one cycle.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Enrollment

326

Conditions

Major Depressive Disorder (MDD)

Interventions

KH607 tabletsDRUG

oral 20mg, once daily for 21 days.

Vortioxetine Hydrobromide TabletsDRUG

oral 10mg, once daily for 42 days.

Part B: KH607DRUG

oral 20mg, once daily for 21 days.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Age: 18 to 65 years old (inclusive), Male or female. 2. Based on investigator's clinical assessment, study participants meet the diagnostic criteria for Major Depressive Disorder (MDD) as defined in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), with a diagnosis of single episode or recurrent episodes (ICD-10 codes: 296.2/296.3), without psychotic features. For patients with first-episode depression, the current episode must have a duration of ≥3 months; for patients with recurrent depression, the current depressive episode must have a duration of ≥1 month 3. Depressive episode confirmed by the Mini International Neuropsychiatric Interview Version 7.0.0 (M.I.N.I. 7.0.0). 4. Patients must have a Montgomery and Åsberg Depression Rating Scale (MADRS) total score ≥26, a Clinical Global Impression-Severity (CGI-S) score ≥4, and a score ≥2 on Item 1 (Depressed Mood) of the HAM-D17 at screening and baseline 5. Body weight ≥45.0 kg for females or ≥50.0 kg for males, with a body mass index (BMI) ≥19 kg/m² 6. Participants who is taking antidepressants must have stopped for 7 days or 5 half-lives of the antidepressant prior to Day 1. 7. Participant is willing to stop other antidepressants, antipsychotics, mood stabilizers, sedatives and hypnotics during the trial. 8. Fully understand the procedures and sigh the informed consent. Only for long-term trials: 9. Subjects who complete the short-term trial (Visit 8 completion), have a ≥50% reduction from short-term trial baseline in MADRS total score at Visit 8, and volunteer to enter the long-term trial. Exclusion Criteria: 1. Other psychiatric disorders meeting DSM-5 criteria, including but not limited to schizophrenia spectrum and other psychotic disorders, bipolar and related disorders, panic disorder, agoraphobia, social anxiety disorder, obsessive-compulsive disorder, post-traumatic stress disorder, generalized anxiety disorder, anorexia nervosa and bulimia nervosa, neurodevelopmental disorders, schizoaffective disorder, or any other psychiatric disorder that, in the Investigator's judgment, may compromise subject compliance. 2. A reduction of ≥25% in MADRS total score at baseline compared with the screening visit (this criterion does not apply if baseline and screening assessments are performed at the same visit). 3. Participants with clinically significant risk of suicide or self-harm, defined as any of the following: 1. A score ≥4 on Item 10 (Suicidal Thoughts) of the MADRS; 2. An answer of "Yes" to Question 4 (active suicidal ideation with intent without specific plan) or Question 5 (active suicidal ideation with specific plan and intent) of the C-SSRS within the past 6 months at screening, or a suicide-related behavior within the past 6 months (any "Yes" response for Actual Attempt, Interrupted Attempt, or Aborted Attempt). 4. Participants meeting any of the following depressive disorder diagnoses: 1. Poor response to adequate dose and adequate duration (at least 6 weeks) of two or more antidepressants with distinct pharmacological mechanisms during a prior depressive episode (based on Investigator interview, to be adjudicated and documented by the Investigator); 2. Depressive disorder secondary to other psychiatric disorders or somatic diseases (e.g., depression induced by hypothyroidism); 3. Substance/medication-induced depressive disorder. 5. Participants receiving structured psychotherapy (interpersonal therapy, psychodynamic therapy, cognitive behavioral therapy, etc.), music therapy, exercise therapy, acupuncture, or other therapies from screening through baseline, who require continuation of such therapies during the study. 6. Receipt of depression-related neuromodulation therapies within 1 month prior to enrollment, including but not limited to modified electroconvulsive therapy (MECT), transcranial magnetic stimulation (TMS), vagus nerve stimulation (VNS), deep brain stimulation (DBS). 7. Prior use of atypical antipsychotics or mood stabilizers during the current depressive episode (e.g., olanzapine, risperidone, quetiapine, aripiprazole, brexpiprazole, ziprasidone, cariprazine, valproate, lithium carbonate). 8. Use of any strong CYP3A4 inhibitor or inducer within 14 days (or 5 half-lives, whichever is longer) prior to enrollment. 9. Abnormal hepatic or renal function prior to enrollment: liver function abnormalities (ALT or AST \>2×ULN), renal function abnormalities (Cr \>1.5×ULN), or other conditions deemed inappropriate for enrollment by the Investigator. 10. Positive test results at screening for active hepatitis B (HBV-DNA ≥1000 copies/mL or 200 IU/mL), hepatitis C antibody, syphilis antibody, or human immunodeficiency virus (HIV) antibody. 11. 12-lead electrocardiogram (ECG) showing second-degree or third-degree atrioventricular block, long QT syndrome, or QTcF \>450 ms (male) / 460 ms (female) prior to enrollment; or other conditions unsuitable for participation as judged by the Investigator (e.g., clinically significant tachyarrhythmia requiring intervention). 12. Severe hypothyroidism (TSH ≥10.0 mIU/L). 13. Participants with current obstructive sleep apnea and/or narcolepsy. 14. Participants who have known or suspected hypersensitivity to vortioxetine hydrobromide, the investigational product or their excipients, or those with allergic diathesis (defined as allergy to at least two different substances). 15. Pregnant or breastfeeding women, or women of childbearing potential with a positive pregnancy test at screening. 16. Participants or their partners planning pregnancy, sperm donation, or oocyte donation during the study and within 6 months after the last study drug administration, and unwilling to use adequate and effective contraception throughout this period. 17. Participants who cannot avoid driving, operating hazardous machinery, or working at heights from the first dose of study drug until 2 weeks after the last dose. 18. History of seizures, or any other medical conditions associated with an increased seizure risk (e.g., stroke, severe head trauma, significant metabolic disturbances). 19. History of narrow-angle glaucoma or other conditions resulting in elevated intraocular pressure. 20. Any other conditions that, in the Investigator's opinion, render the subject unsuitable for participation in this study.

Outcomes

Primary Outcomes

short-term study: Change From Baseline in the Montgomery and Åsberg Depression Rating Scale (MADRS) Total Score

The MADRS was a ten-item diagnostic questionnaire which psychiatrists used to measure the severity of depressive episodes in participants with mood disorders. Each item yielded a score of 0 to 6. The MADRS total score was calculated as the sum of the 10 individual item scores, which ranged from 0 to 60. Higher MADRS scores indicated more severe depression.

Time frame: Baseline to Day 22

Secondary Outcomes

short-term study: Change From Baseline in the MADRS Total Score

Time frame: Baseline up to Day 42

short-term study: Change From Baseline in the 17-item Hamilton Rating Scale for Depression (HAM-D17) Total Score

The HAM-D total score comprised a sum of 17 individual item scores.The total score could range from 0 to 52. Higher scores indicated a greater degree of depression.

Time frame: Baseline up to Day 42

short-term study: Change From Baseline in Hamilton Anxiety Rating Scale (HAM-A) Total Score

The 14-item HAM-A was used to rate the severity of symptoms of anxiety. Scoring for HAM-A was calculated by assigning scores of 0 (not present) to 4 (very severe), with a total score range of 0 to 56. The HAM-A total score was calculated as the sum of the 14 individual item scores.

Time frame: Baseline up to Day 42

short-term study: Change from baseline in Clinical Global Impressions-Severity (CGI-S) score

Central Contacts

Gang Wang, Medical Doctor

CONTACT

86-010-58303063 adgangwang@163.com

Bing Bing Fu, Medical Doctor

CONTACT

86-010-58303063 fbbkidd@126.com

Data from ClinicalTrials.gov

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