Outcome of RAI131 Therapy in Patients With Differentiated Thyroid Cancer (Low and Intermediate Risk)

NCT07056218 | Not Yet Recruiting

• 1 other identifier: Soh-Med-25-6-7MS
• Study Type: observational
• Target: 50
• Locations: 0 countries
• Sites: N/A

Brief Summary

Thyroid cancer is a universally relatively rare neoplasm, accounting for nearly 1-5% of all female cancers and less than 2% of male cancers. In spite of this relatively low incidence, it occupies the first rank among the most common endocrinal malignancies, with a consistent male to female ratio of 1: 3 observed in nearly all ethnic groups and geographic areas. Differentiated thyroid cancer (DTC) is rated as slowly growing disease with a fairly good outcome where the five-year survival rate for localized tumor is 99.8% Total thyroidectomy, the removal of the entire thyroid gland, is the most common surgical approach-especially for tumors larger than 1 cm, multifocal disease, or suspected lymph node involvement. Lobectomy may be considered for small, low-risk tumors (\<1 cm) confined to a single lobe. If lymph node metastasis is evident clinically or radiologically, neck dissection is performed. Postoperative radioactive iodine (RAI) therapy is used to ablate residual tissue or treat recurrent disease, particularly in iodine-avid tumors and intermediate- to high-risk patients. It may not be necessary for small, low-risk tumors. Thyroid hormone suppression therapy with levothyroxine serves both to replace thyroid hormone and suppress TSH, which could stimulate cancer growth. Long-term monitoring includes serial thyroglobulin (Tg) levels (along with anti-Tg antibodies if needed), neck ultrasound, and, in some cases, additional imaging like RAI scans or PET/CT to detect recurrence

Conditions

Thyroid Cancer

Outcome Measures

Primary Outcomes (1)

• outcome of radioactive iodine therapy on thyroid cancer

  outcome of radioactive iodine therapy on thyroid cancer

  12:18 months

Study Arms (2)

low risk

patients typically have intrathyroidal papillary or follicular carcinoma, tumors \<4 cm, no lymph node metastasis or only \<5 small-volume (\<0.2 cm) mico metastases, no vascular invasion (for follicular type), no aggressive histologic features, and no local or distant metastases.

Device: neck ultrasound; Diagnostic Test: thyroglobulin

intermediate risk

includes cases with microscopic extrathyroidal extension (ETE), cervical lymph node metastases (especially \>5 nodes or \>0.2 cm), vascular invasion, aggressive histologic variants, or RAI-avid distant metastases

Device: neck ultrasound; Diagnostic Test: thyroglobulin

Interventions

neck ultrasound DEVICE

ultrasound scan

intermediate risk; low risk

thyroglobulin DIAGNOSTIC_TEST

blood test

intermediate risk; low risk

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

This study will include 50 patients with thyroid cancer.

You may qualify if:

• \- Pathologically or cytologically proven differentiated thyroid cancer.
• Total thyroidectomy with or without lymph node dissection
• Patient was treated by RAI after surgery
• Male and female patients
• Age \>18 yrs

You may not qualify if:

• \) Patients with undifferentiated thyroid cancer. 2) patients with high risk (distant metastasis) 3)patient with double malignancy 4) medullary thyroid cancer 4) Patient age \< 18 years. 5)patient not treated by surgery or RAI

Sponsors & Collaborators

• Sohag University: lead

Related Publications (4)

• Liu Y, Su L, Xiao H. Review of Factors Related to the Thyroid Cancer Epidemic. Int J Endocrinol. 2017;2017:5308635. doi: 10.1155/2017/5308635. Epub 2017 May 2.

  PMID: 28555155 BACKGROUND

• Baloch ZW, Asa SL, Barletta JA, Ghossein RA, Juhlin CC, Jung CK, LiVolsi VA, Papotti MG, Sobrinho-Simoes M, Tallini G, Mete O. Overview of the 2022 WHO Classification of Thyroid Neoplasms. Endocr Pathol. 2022 Mar;33(1):27-63. doi: 10.1007/s12022-022-09707-3. Epub 2022 Mar 14.

  PMID: 35288841 BACKGROUND

• Tondi Resta I, Gubbiotti MA, Montone KT, Livolsi VA, Baloch ZW. Differentiated high grade thyroid carcinomas: Diagnostic consideration and clinical features. Hum Pathol. 2024 Feb;144:53-60. doi: 10.1016/j.humpath.2024.01.002. Epub 2024 Jan 19.

  PMID: 38244615 BACKGROUND

• do Prado Padovani R, Duarte FB, Nascimento C. Current practice in intermediate risk differentiated thyroid cancer - a review. Rev Endocr Metab Disord. 2024 Feb;25(1):95-108. doi: 10.1007/s11154-023-09852-y. Epub 2023 Nov 23.

  PMID: 37995023 BACKGROUND

MeSH Terms

Conditions

Thyroid Neoplasms

Condition Hierarchy (Ancestors)

Endocrine Gland Neoplasms; Neoplasms by Site; Neoplasms; Head and Neck Neoplasms; Endocrine System Diseases; Thyroid Diseases

Central Study Contacts

Rana A Sabry, resident

CONTACT

01008706603; rana.ashraf@med.sohag.edu.eg

Wafaa A Elsayed, assisstant lecturer

CONTACT

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: resident at oncology department nuclear medicine unit sohag university

Study Record Dates

• First Submitted: June 29, 2025
• First Posted: July 9, 2025
• Study Start: July 15, 2025
• Primary Completion (Estimated): December 15, 2026
• Study Completion (Estimated): December 15, 2026
• Last Updated: July 9, 2025

Record last verified: 2025-06