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CompletedNCT06728644Updated Jul 11, 2025

The Role of L-arginine in Polycystic Ovary Syndrome

An interventional study of L-arginine intervention in Polycystic Ovary Syndrome, L-arginine and Gut Microbiome, sponsored by Shanghai 10th People's Hospital. Completed at 2 sites in China. Open to female participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2025-07-11.

Sponsored by Shanghai 10th People's Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Jul 2024, registered Dec 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
31
Allocation
Not applicable
Ages
18 Years to 45 Years
Sex
Female
01

Study summary

PCOS patients meeting the trial criteria were enrolled from the Shanghai 10th People's Hospital. The contents of this study were introduced to them, and they were invited to participate in the study. We further evaluated the efficacy and safety of arginine in treating PCOS by implementing the L-arginine clinical intervention protocol, and conducting post-intervention follow-up, efficacy evaluation, laboratory tests, and fecal sample 16S rRNA sequencing.

Read the detailed description

In this study, we will enroll PCOS patients who meet the trial criteria from the Shanghai 10th People's Hospital, introduce the content of this study to them, and invite them to participate in the study. Perform laboratory tests for PCOS and collect baseline stool and blood samples. The clinical intervention program of L-arginine was implemented, and post-intervention follow-up, efficacy evaluation and laboratory examination were carried out. Stool and blood samples were collected after the intervention, and 16S rRNA sequencing was performed on stool samples before and after the intervention. To analyze whether PCOS-related clinical and laboratory indicators improved after L-arginine treatment of PCOS, and to analyze the changes in patients' microbiome before and after L-arginine treatment, to clarify the effectiveness and safety of L-arginine treatment of PCOS.

02

Conditions studied

  • Polycystic Ovary Syndrome
  • L-arginine
  • Gut Microbiome
03

In context

Polycystic Ovary Syndrome

944 studies on the registry are indexed under Polycystic Ovary Syndrome; 174 are open to participants now.

This study's enrollment of 31 is below the median of 70 across 685 interventional studies indexed under Polycystic Ovary Syndrome.

Browse Polycystic Ovary Syndrome studies →

Lead sponsor

Shanghai 10th People's Hospital is the lead sponsor of 167 studies on the registry; 45 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • aged 18-45 years
  • Diagnosis of PCOS with the Rotterdam diagnosis criteria (2003)

Exclusion criteria

Exclusion Criteria:

  • Pregnant women;
  • Hyperthyroidism or hypothyroidism
  • Severe liver and kidney function injury
  • Cancer patients;
  • Associated with severe infection, severe anemia, neutropenia and other blood system diseases;
  • Have type 1 diabetes, single-gene mutated diabetes or other secondary diabetes;
  • Patients with mental illness or intellectual disability;
  • Have a long history of taking hormone therapy;
  • Currently or recently participating in another clinical trial.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
31 participants (actual)

Study arms

  • Experimental
    L-arginine intervention with 3g daily treatment for three months

    L-arginine therapy

    Drug: L-arginine intervention

Interventions

  • DrugL-arginine intervention

    L-arginine intervention for 3 months, 3 g per day.

06

What researchers measure

Primary outcomes

  1. menstrual frequency

    number of menstruation in a year

    Time frame: Within 7 days of enrollment

Secondary outcomes

  1. Homeostasis model assessment of insulin resistance

    insulin resistance index

    Time frame: Within 7 days of enrollment

  2. body mass index

    body mass index (kg/m2)

    Time frame: Within 7 days of enrollment.

  3. fasting glucose

    fasting glucose (mmol/L)

    Time frame: Within 7 days of enrollment.

  4. fasting insulin

    fasting insulin (mmol/L)

    Time frame: Within 7 days of enrollment.

  5. Total cholesterol

    Total cholesterol (mmol/L)

    Time frame: Within 7 days of enrollment.

  6. Triglycerides

    Triglycerides (mmol/L)

    Time frame: Within 7 days of enrollment.

  7. HDL-c

    HDL-c (mmol/L)

    Time frame: Within 7 days of enrollment.

  8. LDL-c

    LDL-c (mmol/L)

    Time frame: Within 7 days of enrollment.

  9. total testosterone

    total testosterone (nmol/L)

    Time frame: Within 7 days of enrollment.

  10. free testosterone

    free testosterone (nmol/L)

    Time frame: Within 7 days of enrollment.

  11. Sex hormone-binding globulin

    Sex hormone-binding globulin (nmol/L)

    Time frame: Within 7 days of enrollment.

  12. Androstenedione

    Androstenedione (ng/ml)

    Time frame: Within 7 days of enrollment.

  13. Dehydroepiandrosterone

    Dehydroepiandrosterone (ug/dl)

    Time frame: Within 7 days of enrollment.

07

Study locations

2 sites
  • Department of Endocrinology, Shanghai Tenth People's Hospital
    Shanghai, 200072, China
  • Shanghai Tenth People's Hospital
    Shanghai, 200072, China
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 11, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06728644
Lead sponsor
Shanghai 10th People's Hospital
Responsible party
Zhang Manna (Prof., Shanghai 10th People's Hospital) — Principal investigator
First posted
Dec 11, 2024
Start date
Jul 14, 2024
Primary completion
Jul 4, 2025
Completion
Jul 4, 2025
Last update
Jul 11, 2025

Study contacts

Manna Zhang, doctor
principal investigator · Shanghai 10th People's Hospital

Oversight

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

Not currently enrolling

This study is completed, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.

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