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Spots Global Cancer Trial Database for Evaluation of Metformin Effect on the Fertility of Women Treated With 131I for Thyroid Cancer

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Trial Identification

Brief Title: Evaluation of Metformin Effect on the Fertility of Women Treated With 131I for Thyroid Cancer

Official Title: Evaluation of Metformin Effect on the Fertility of Women Treated With 131I for Thyroid Cancer

Study ID: NCT05468554

Conditions

Thyroid Cancer

Study Description

Brief Summary: This study is aimed to investigate the metformin effect on the fertility of women treated with 131 I for thyroid cancer

Detailed Description: One of the most common types of endocrine cancer, especially in young women, is thyroid cancer. More than 90% of all thyroid cancers are differentiated thyroid cancers (DTC), including papillary thyroid cancer (PTC) and follicular cancer. Papillary thyroid cancer is considered as indolent tumour as progression free survival is 10 years of 98%. As per current knowledge and basing on current literature most of the PTC are considered to be low incidence of recurrence or metastasis, however, there are more invasive/aggressive types with very specific pathological and molecular characteristics. The aggressive variants of PTC were strictly associated with higher rates of extrathyroid extension, multifocality, and nodal and distant metastasis. Thyroidectomy followed by radioactive iodine 131 (131I) therapy, in higher stages of PTC disease to ablate residual thyroid cancer or treat metastases, significantly increase survival Metformin (1,1-dimethylbiguanide) is an oral antihyperglycemic drug. Orally administered metformin is absorbed into the blood in 40-60% of the drug dose. Maximum blood levels are reached after approximately 2.5 hours for the immediate-release formulation and 7 hours for the prolonged-release tablets. It is not metabolised in the liver, however, it is excreted unchanged by the kidneys, mainly through the renal tubules. Metformin is used in patients with type 2 diabetes and prediabetes as well as in insulin resistant state and in women with polycystic ovary syndrome (PCOS). Metformin works by lowering level of glucose in the blood by lowering its production by the liver and increasing the sensitivity to insulin by muscle and fat tissue. It also has a beneficial effect on serum lipids by reducing the concentration of triglycerides, total cholesterol, LDL-cholesterol and VLDL. Additionally, this drug has also several other biological effects such as anti-inflammatory, anticancer, hepatoprotective, cardioprotective, otoprotective, radioprotective and radio-sensitising. Currently there is also a large evidential material for effectiveness of metformin therapy in re-establishing of reproductive functions and fertility in women with polycystic ovary syndrome. Having proved the metformin restore of ovulation in PCOS and has antioxidant properties there are indications that metformin can be a therapy which will helps to maintain ovary follicle number on acceptable level. At present, there are no performed studies concerned on the evaluation of the potential beneficial effect of metformin application impact on fertility parameters in the group of women treated with 131I. Therefore, the proposed study will assess the effect of metformin intervention on the indirect parameters of fertility of women treated with 131I for papillary thyroid cancer

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT

Sex: FEMALE

Healthy Volunteers: No

Locations

Department of Endocrinology, Diabetology and Internal Medicine, Medical Univeristy of Bialystok, Bialystok, , Poland

Contact Details

Name: Agnieszka Adamska, Assoc.Prof.

Affiliation: Medical University of Bialystok

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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