NCT03584529

Brief Summary

the aim of this randomised clinical trial study is to evaluate whether supplementation with vitamin D could inhibit the growth of uterine fibroids in reproductive stage women.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
360

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2018

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 13, 2018

Completed
29 days until next milestone

First Posted

Study publicly available on registry

July 12, 2018

Completed
2 months until next milestone

Study Start

First participant enrolled

September 15, 2018

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2021

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2021

Completed
Last Updated

September 5, 2018

Status Verified

July 1, 2018

Enrollment Period

2.3 years

First QC Date

June 13, 2018

Last Update Submit

September 2, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • volume of the total fibroids

    percent change in volume of the largest fibroid compared to baseline in different groups

    two years after treatment

Secondary Outcomes (8)

  • percentage of subjects undergoing other medical or surgical treatment of uterine fibroids

    two years after treatment

  • Hypercalcemia

    Two years after treatment

  • abnormal liver function

    Two years after treatment

  • urinary calculus

    Two years after treatment

  • abnormal renal function

    Two years after treatment

  • +3 more secondary outcomes

Study Arms (4)

vitamin D deficiency treatment group

EXPERIMENTAL

patients with vitamin D deficiency (12 ng/ml ≤ serum 25-hydroxyvitamin D3 \< 20 ng/ml)and uterine fibroids receive 1600 IU/day of vitamin D3 oral capsule for two years

Drug: Vitamin D 3

vitamin D deficiency control group

NO INTERVENTION

patients with vitamin D deficiency (12 ng/ml ≤ serum 25-hydroxyvitamin D3 \< 20 ng/ml)and uterine fibroids receive regular follow-up.

vitamin D insufficiency treatment group

EXPERIMENTAL

patients with vitamin D insufficiency (20 ng/ml ≤ serum 25-hydroxyvitamin D3 \< 30 ng/ml) and uterine fibroids receive 800 IU/d of vitamin D3

Drug: Vitamin D 3

vitamin D insufficiency control group

NO INTERVENTION

patients with vitamin D insufficiency (20 ng/ml ≤ serum 25-hydroxyvitamin D3 \< 30 ng/ml)and uterine fibroids receive regular follow-up.

Interventions

Non-Vitamin D3 Drops group Patients in this group would take nothing.

vitamin D deficiency treatment groupvitamin D insufficiency treatment group

Eligibility Criteria

Age35 Years - 50 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • \. Patients are willing to cooperate with the follow-up and sign informed consent;
  • \. Females aged 35-50 who are diagnosed as having uterine fibroids by transvaginal or abdominal ultrasonography;
  • \. The maximum average diameter of intramural myoma is ≤ 4cm,≥ 1cm; The amount of myoma is less than 4;
  • \. Serum 25-hydroxyvitamin D3 \< 30 ng/ml, ≥ 12 ng/ml.

You may not qualify if:

  • \. Patients with heavy menstrual bleeding (\>80.0 mL), menstrual disorders, pelvic discomfort, infertility, or other indications for operation;
  • \. Patients complicated with myoma degeneration and adenomyosis that were suspected or diagnosed by ultrasound or gynecologic examination;
  • \. Allergic to vitamin D3;
  • \. Use of sexual hormone, mifepristone, gonadotropin-releasing hormone agonist (GnRHa), or other medication which is likely to interfere with uterine fibroids within 3 months;
  • \. Pregnancy, lactation, postmenopause, or planned pregnancy within two years;
  • \. Suspected or identified as other tumors of genital tract;
  • \. History of osteoporosis or vitamin D deficiency taking vitamin D supplements within previous one month;
  • \. History of autoimmune diseases, infectious diseases (tuberculosis, AIDS), autoimmune diseases, digestive system diseases (malabsorption, crohn disease, and dysentery);
  • \. Alanine aminotransferase (ALT) or aspartate transaminase(AST) more than 3 times of the normal upper limit, total bilirubin (TBIL) more than 2 times of the normal upper limit;
  • \. Creatinine levels≥1.4 mg/dL (123μmol/L) or creatinine clearance ≤ 50 mL/min;
  • \. History of malignant tumors;
  • \. Simultaneous participation in another clinical study with investigational medicinal product(s) or researcher thinks the subjects are not suitable for this trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University

Wenzhou, Zhejiang, 325000, China

Location

Related Publications (1)

  • Sheng B, Song Y, Liu Y, Jiang C, Zhu X. Association between vitamin D and uterine fibroids: a study protocol of an open-label, randomised controlled trial. BMJ Open. 2020 Nov 6;10(11):e038709. doi: 10.1136/bmjopen-2020-038709.

MeSH Terms

Conditions

Genital Diseases, FemaleVitamin D Deficiency

Interventions

Cholecalciferol

Condition Hierarchy (Ancestors)

Female Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital DiseasesAvitaminosisDeficiency DiseasesMalnutritionNutrition DisordersNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

CholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipids

Central Study Contacts

Xueqiong Zhu, PHD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 13, 2018

First Posted

July 12, 2018

Study Start

September 15, 2018

Primary Completion

January 1, 2021

Study Completion

July 1, 2021

Last Updated

September 5, 2018

Record last verified: 2018-07

Data Sharing

IPD Sharing
Will share

Locations