NCT02665325

Brief Summary

Thyroid carcinoma is the common endocrine system malignant neoplasm. At present it has become the malignant neoplasm of fastest growing incidence rate. More than 90% thyroid carcinoma is thyroid differentiated carcinoma(DTC). Postoperative oral L-thyroxine suppressing thyroid stimulating hormone (TSH) treatment is the standard therapy in DTC patients. While TSH-suppressive therapy with L-thyroxine can cause subclinical hyperthyroidism in treatment of patients with thyroid differentiated carcinoma. The impact of this therapy on cognitive functions and mood have not been systematically studied. The investigators infer the subclinical hyperthyroidism caused by TSH-suppressive therapy may impact cognitive function and mood disorders in DTC patients. The aim of this study is to explore the possible mechanism of cognitive function impairment in the course of TSH-suppressive therapy by rat model of total thyroidectomy + TSH-suppressive therapy and clinical trials. The result of this study may provide clinical and experimental basis for the side effects risk result form TSH-suppressive therapy in DTC patients.

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
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2016

Longer than P75 for all trials

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

Study Start

First participant enrolled

January 1, 2016

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

January 17, 2016

Completed
10 days until next milestone

First Posted

Study publicly available on registry

January 27, 2016

Completed
7.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2023

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2024

Completed
Last Updated

July 20, 2023

Status Verified

July 1, 2023

Enrollment Period

7.9 years

First QC Date

January 17, 2016

Last Update Submit

July 18, 2023

Conditions

Keywords

TSH-suppressive therapycognitive function

Outcome Measures

Primary Outcomes (6)

  • Cognitive impairment assessed with the Mini-Mental State Examination (MMSE)

    2 years

  • Cognitive impairment assessed with the Clock Drawing Test (CDT)

    2 years

  • Cognitive impairment assessed with the Digit Symbol test (DST)

    2 years

  • Cognitive impairment assessed with the Wechsler Memory Scale (WMS)

    2 years

  • Cognitive impairment assessed with the Aphasia Battery of Chinese (ABC)

    2 years

  • Mood assessed with the patient health questionnaire -9 (PHQ-9)

    2 years

Study Arms (3)

TSHsuppressive therapy group

TSH-suppressive therapy group: newly diagnosed differentiated thyroid carcinoma and undergone thyroidectomy according to the China thyroid association guidelines for the Management of thyroid nodule and thyroid cancer; followed by TSH-suppressive therapy 6 /12 months.

Drug: TSH-suppressive therapy

Negative control group

Healthy volunteers (normal T3,T4,FT3,FT4,TSH, TG-ab,TPO-ab,TG) are recruited to match the patients with age, gender, education level, ect.

Positive control group

Newly diagnosed nodular goiter and undergone thyroidectomy according to the China thyroid association guidelines for the management of thyroid nodule and thyroid cnacer; followed by L-T4 replacement therapy 6/12 months.

Interventions

Thyroidectomy according to the China thyroid association guidelines for the Management of thyroid nodule and thyroid cancer; followed by TSH-suppressive therapy 6 /12 months.

Also known as: Thyroidectomy
TSHsuppressive therapy group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients aged 18-65 years; newly diagnosed differentiated thyroid carcinoma and undergone thyroidectomy according to the China thyroid association guidelines for the Management of thyroid nodule and thyroid cancer; followed by TSH-suppressive therapy 6 /12 months.

You may qualify if:

  • Newly diagnosed differentiated thyroid carcinoma.
  • Undergo thyroidectomy according to the China thyroid association guidelines for the Management of thyroid nodule and thyroid cancer.
  • Followed by TSH-suppressive therapy 6 /12 months.

You may not qualify if:

  • Current or past disorder/disease of the central nervous system or medical condition impacting cognitive functioning.
  • Head trauma history with prolonged loss of consciousness.
  • Epilepsy, dementia, or learning disability.
  • Current or past psychotic-spectrum disorder or current major affective disorder.
  • Current substance abuse/dependence.
  • Daily tobacco and alcohol use.
  • Whole brain irradiation or surgery.
  • Prior cancer diagnosis or chemotherapy treatment.
  • Active autoimmune disorder.
  • Insulin-dependent diabetes.
  • Uncontrolled allergic condition or asthma.
  • Chronic use of oral steroid medication.
  • Hormone therapy (estrogen, progestin compounds).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shan Jin

Hohhot, Inner Mongolia, 010050, China

RECRUITING

Related Publications (6)

  • Fiore E, Vitti P. Serum TSH and risk of papillary thyroid cancer in nodular thyroid disease. J Clin Endocrinol Metab. 2012 Apr;97(4):1134-45. doi: 10.1210/jc.2011-2735. Epub 2012 Jan 25.

    PMID: 22278420BACKGROUND
  • Biondi B, Cooper DS. Benefits of thyrotropin suppression versus the risks of adverse effects in differentiated thyroid cancer. Thyroid. 2010 Feb;20(2):135-46. doi: 10.1089/thy.2009.0311.

    PMID: 20151821BACKGROUND
  • Davis PJ, Zhou M, Davis FB, Lansing L, Mousa SA, Lin HY. Mini-review: Cell surface receptor for thyroid hormone and nongenomic regulation of ion fluxes in excitable cells. Physiol Behav. 2010 Feb 9;99(2):237-9. doi: 10.1016/j.physbeh.2009.02.015. Epub 2009 Feb 25.

    PMID: 19248795BACKGROUND
  • Bauer M, Silverman DH, Schlagenhauf F, London ED, Geist CL, van Herle K, Rasgon N, Martinez D, Miller K, van Herle A, Berman SM, Phelps ME, Whybrow PC. Brain glucose metabolism in hypothyroidism: a positron emission tomography study before and after thyroid hormone replacement therapy. J Clin Endocrinol Metab. 2009 Aug;94(8):2922-9. doi: 10.1210/jc.2008-2235. Epub 2009 May 12.

    PMID: 19435829BACKGROUND
  • Puighermanal E, Busquets-Garcia A, Maldonado R, Ozaita A. Cellular and intracellular mechanisms involved in the cognitive impairment of cannabinoids. Philos Trans R Soc Lond B Biol Sci. 2012 Dec 5;367(1607):3254-63. doi: 10.1098/rstb.2011.0384.

    PMID: 23108544BACKGROUND
  • Wekking EM, Appelhof BC, Fliers E, Schene AH, Huyser J, Tijssen JG, Wiersinga WM. Cognitive functioning and well-being in euthyroid patients on thyroxine replacement therapy for primary hypothyroidism. Eur J Endocrinol. 2005 Dec;153(6):747-53. doi: 10.1530/eje.1.02025.

MeSH Terms

Conditions

Cognitive Dysfunction

Interventions

Thyroidectomy

Condition Hierarchy (Ancestors)

Cognition DisordersNeurocognitive DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Endocrine Surgical ProceduresSurgical Procedures, Operative

Study Officials

  • Shan Jin, PhD

    The Affiliated Hospital of Inner Mongolia Medical University

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 17, 2016

First Posted

January 27, 2016

Study Start

January 1, 2016

Primary Completion

December 1, 2023

Study Completion

December 1, 2024

Last Updated

July 20, 2023

Record last verified: 2023-07

Locations