ClinicalTrials.gg
Status unknownNCT04124276Updated Oct 30, 2020

Evaluation of Efficacy of Lycium Barbarum Polysaccharide in Patients With Major Depressive Disorder

An interventional study of Lycium barbarum polysaccharide and Placebo in Major Depressive Disorder, Depression and Depressive Disorder, sponsored by Guangzhou Psychiatric Hospital. Status unknown at 1 site in China. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2020-10-30.

Sponsored by Guangzhou Psychiatric Hospital · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Oct 2020), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
284
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 206 studies in Depressive Disorder, Major with a site in China — 74 open to participants now, 77 under way, 5 of them phase 3. Depressive Disorder, Major · China.

Planned enrollment
38th of 173
284 · median 120
Started
2019
with 10 others
No phase
99 of 206
48 open now
Registered
61st of 206
by date
Lead sponsor
5 of 206
Guangzhou Psychiatric Hospital

Among the 206 studies in Depressive Disorder, Major with a site in China, this one is the 38th largest by planned enrollment of the 173 interventional ones, is one of 11 that started in 2019, is one of 99 with no phase, and was the 61st registered.

By phase

206 studies; the count open now beside each. This study's row is marked.

No phasethis study99 · 48 open
Observational33 · 13 open
Phase 219 · 3 open
Phase 419 · 3 open
Phase 317 · 4 open
Phase 114 · 2 open
Phase 2/33 · 1 open
Phase 1/22 · 0 open

By the year they started

First in 2004; this study’s year is marked. 11 started in 2019.

Size and results

Median enrollment 120 across the 173 interventional studies, 240 across the 33 observational. Of the 76 that completed or were terminated, 8 (11%) have results posted.

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02

Study summary

Lycium barbarum, a traditional Chinese herbal medicine, is a commonly used herb in the traditional Chinese pharmacopoeia. Its main active ingredient, lycium barbarum polysaccharide (LBP), is reported to have neuroprotective effects. Animal studies suggested that LBP has neuroprotective effect on optic ganglion cells. In animal models of depression, LBP can improve depressive symptom by improving synaptic plasticity. However, its clinical effect remains to be studied. We will conduct a 6-week double-blind, randomized, placebo-con-trolled trial in patients with major depressive disorder (MDD). The purpose of this clinical trial is to investigate the efficacy of LBP in patients with MDD.

03

Conditions studied

  • Major Depressive Disorder
  • Depression
  • Depressive Disorder

Keywords

  • Major Depressive Disorder
  • Lycium barbarum polysaccharide
04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age: 18-60 years old
  2. Sex: both men and women
  3. Compliance with the -5 (DSM-5) diagnostic criteria for major depressive disorder
  4. Hamilton Depression Scale scored more than 18 points.
  5. No of taking Lycium barbarum polysaccharide

Exclusion criteria

Exclusion Criteria:

  1. Comorbidity with other mental disorders
  2. Severe somatic diseases
  3. Current use of traditional Chinese medicine
  4. Suicide concept, attempt, act and attempted suicide
  5. Psychiatric symptoms
  6. Taking hormones and endocrine drugs
  7. Long-term use of wolfberry in recent three months
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
284 participants (estimated)

Study arms

  • Experimental
    Lycium barbarum polysaccharide

    Experimental group takes Lycium barbarum polysaccharide (LBP) tablet (300mg/day) for 6 weeks

    Dietary Supplement: Lycium barbarum polysaccharide

  • Placebo comparator
    Placebo

    Placebo control group takes placebo (300mg/day) for 6 weeks. The placebos are the same with the LBP tablets in appearance and taste.

    Dietary Supplement: Placebo

Interventions

  • Experimental groups take Lycium barbarum polysaccharide (LBP) (300mg/day) for 6 weeks

  • Dietary supplementPlacebo

    Placebo control group takes placebo (300mg/day) for 6 weeks.

06

What researchers measure

Primary outcomes

  1. Reduction rate of Hamilton Depression Scale (HDRS)

    HDRS is used to measure the depressive severity;its measured time range is within the past week. In this study, version of 24-items is used. The patients are depressed when the total score are greater than 19 points, and there are no depression when the total scores are less than points. Clinical control, HDRS score reduction rate≥75%; significant progress, 50%≤HDRS score reduction rate \< 75%; progress, 25%≤HDRS score reduction rate \< 50%; ineffectiveness, HDRS score reduction rate \< 25%. significant efficiency = (clinical control + significant progress) / sample number×100%.

    Time frame: 4weeks, 6weeks

Secondary outcomes

  1. Changes in depressive severity measured by Beck Depression Inventory (BDI) scale and Kessler Scale(K10)

    BDI scale is used to measure depressive severity by patients themselves. It's made of 21 items. Circle the number in front of the sentence that best suits your situation in according to the feeling for a week. The total score is obtained by adding up the delimited scores of each item. There is depression when the total score is greater than 15 points and there is no depression when the total score is less than 10 points. The K10 is a widely used, simple self-report measure of psychological distress which can be used to identify those in need of further assessment of depression and anxiety

    Time frame: 4 weeks, 6 weeks

  2. Changes in sleep quality

    Changes in Pittsburgh Sleep Quality Index (PSQI) scale. PSQI scale is used to evaluate sleep quality for last month. It's made of 7 items; every item is scored 1-4 point. Total score is obtained by adding up the points of 7 items. Total score range is 0\~21 point. The sleep quality is worse when the total score is higher.

    Time frame: 4 weeks, 6 weeks

  3. Changes in cognitive function

    Cognitive function is assessed using the THINC-it. The THINC-it was recently developed by the THINC-it Task Force (http://thinc.progress.im/en) with the principal goal of time-efficient screening of cognitive impairments specifically among individuals with major depressive disorder as a routine component of their clinical care. THINC-it is a digitized cognitive assessment battery comprised of carefully selected gamified variations of well-known cognitive tasks (Spotter \[Choice Reaction Time\], Symbol Check \[One-Back\], Codebreaker \[Digit Symbol Substitution Test\], Trails \[Trail Making Test-Part B\]), and the Perceived Deficits Questionnaire for Depression-5-item (PDQ-5-D), a subjective self-report scale.

    Time frame: 4 weeks, 6 weeks

  4. Changes in social adaptive levels

    Measured by Global Assessment Function (GAF) scale. GAF scale is used to evaluate the condition and social adaptability in psychiatry patients. It's divided into 1 to 100 grades. The lower the score, the more serious the disease is. 91-100 points shows that the patients have good social adaptation and normal mental status.

    Time frame: 4 weeks, 6 weeks

  5. Changes in serum brain-derived neurotrophic factor (BDNF) levels

    We measure the serum BDNF levels by enzyme linked immunosorbent assay (ELISA)

    Time frame: 6 weeks

  6. Changes in serum triglyceride levels

    The blood of patients are sent to clinical laboratory of our hospital to measure serum triglyceride levels

    Time frame: 6 weeks

  7. Changes in serum total cholesterol levels

    The blood of patients are sent to clinical laboratory of our hospital to measure serum total cholesterol levels

    Time frame: 6 weeks

07

Study locations

1 of 1 sites recruiting
  • Guangzhou Brain Hospital (Guangzhou Huiai Hospital)
    Guanzhou, Guangdong 510370, China
    Recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Nov 2019 (actual). Primary completion is estimated for Dec 2020, 13 months after the start.

Of 647 non-industry interventional studies with no phase under Depressive Disorder, Major, half reached primary completion within 35 months of starting (the median), counting those still running; a quarter within 19 and three quarters within 55. This study's planned 13 months is below that.

Counting every sponsor, half of 687 studies reached it within 33 months; a quarter within 17 and three quarters within 55.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 5, 2019
First posted
Oct 11, 2019
StartActual
Nov 1, 2019
Primary completionEst.
Dec 30, 2020
CompletionEst.
Jun 1, 2021
Last update
Oct 30, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 30, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04124276
Lead sponsor
Guangzhou Psychiatric Hospital
Collaborators
Fifth Affiliated Hospital of Guangzhou Medical University
Responsible party
Kangguang Lin (Deputy director, Department of Affective Disorder, Guangzhou Psychiatric Hospital) — Principal investigator
First posted
Oct 11, 2019
Start date
Nov 1, 2019
Primary completion
Dec 30, 2020 (estimated)
Completion
Jun 1, 2021 (estimated)
Last update
Oct 30, 2020

Study contacts

Kangguang Lin, MD, PhD
Contact
klin@connect.hku.hk
13560360144
Kangguang Lin, MD, PhD
principal investigator · Guangzhou Brain Hospital (Guangzhou Huiai Hospital)

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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