Skip to content

Efficacy Evaluation of Vitamin D3 Intervention in Early-Stage Hashimoto's Thyroiditis: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

Efficacy Evaluation of Vitamin D3 Intervention in Early-Stage Hashimoto's Thyroiditis: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600118924
Enrollment
Unknown
Registered
2026-02-12
Start date
2026-02-24
Completion date
Unknown
Last updated
2026-02-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hashimoto's Thyroiditis, HT

Interventions

Intervention Group:Oral vitamin D3 supplementation
Placebo Group:Placebo

Sponsors

The First Affiliated Hospital of Kunming Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: 1. Age between 18 and 50 years. 2. Meeting the diagnostic criteria for early Hashimoto's thyroiditis (HT), as defined by: Serum TPOAb > 34 IU/mL and/or TGAb > 115 IU/mL; Heterogeneous echogenicity or reticular pattern changes on thyroid ultrasound; Normal clinical presentation, TSH, and thyroid function. 3. No clinical intervention with immunomodulators (e.g., thymopentin, interferons, human immunoglobulin for injection, glucocorticoids, cyclophosphamide, azathioprine), vitamins, or other trace elements within the past 3 months. 4. Capable of complying with the study protocol (e.g., completing medication intake, examinations, and follow-ups as required by the protocol). 5. No contraindications or allergies to the supplements included in the study.

Exclusion criteria

Exclusion criteria: 1. Coexistence of Graves ophthalmopathy, dermopathy, granulocytopenia, thyroid nodules, hypothyroidism, thyroid and/or other organ malignancies. 2. Diagnosis of other autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, systemic sclerosis, etc. 3. Severe hepatic or renal dysfunction (with alanine aminotransferase or serum creatinine levels exceeding 1.5 times the upper limit of normal as defined by the hospital); severe cardiovascular or cerebrovascular diseases (e.g., heart failure, myocardial infarction, cerebral infarction, acute myocarditis, severe arrhythmia, or having undergone interventional procedures); stage 3 hypertension (systolic blood pressure not controlled below 160 mmHg despite the use of three antihypertensive agents). 4. Infectious diseases including HBsAg-positive hepatitis B, active pulmonary tuberculosis, AIDS, etc. 5. Any psychiatric disorder; epilepsy or current use of antiepileptic drugs; current use of antidepressant medications. 6. Lack of cognitive capacity. 7. Women who are pregnant, breastfeeding, or planning to become pregnant within the next 6 months. 8. Chronic medical conditions (e.g., diabetes mellitus, chronic obstructive pulmonary disease, arthritis, chronic liver disease, etc.). 9. History of organic brain diseases (including cerebral trauma, intracranial tumors, cerebral hemorrhage, cerebral infarction, or other cerebrovascular diseases). 10. Use of medications affecting bone metabolism within the past 6 months (e.g., bisphosphonates, glucocorticoids, estrogen, estrogen receptor agonists, immunosuppressants, chemotherapeutic agents, etc.). 11. History of fracture or presence of bone diseases. 12. Diagnosis of hyperparathyroidism. 13. Alcohol abuse (defined as daily alcohol intake >40 grams for women [approximately equivalent to 250 ml of rice wine, 400 ml of beer, or 80 ml of distilled spirits] or >80 grams for men). 14. Participation in another clinical trial within the past 3 months or current enrollment in any other clinical study.

Design outcomes

Primary

MeasureTime frame
Thyroid profile:TPOAb?TGAb?TSH?FT3?FT4;

Secondary

MeasureTime frame
Fasting plasma glucose (FPG);Cytokine testing:IL?TNF;Liver and renal function tests:AST?ALT?TG?TC?Cr?Ca;Bone metabolism markers:25(OH)D?PTH;

Countries

China

Contacts

Public ContactGaohong Zhu

The First Affiliated Hospital of Kunming Medical University

1026909611@qq.com+86 871 6532 4888

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 19, 2026