Percentage of BRAFV600E Alleles and Outcome in Thyroid Carcinoma

NCT04664413 | Unknown

• 1 other identifier: ABOUT
• Study Type: observational
• Target: 300
• Locations: 1 country
• Sites: 1

Brief Summary

BRAFV600E is the most frequent oncogene in Papillary thyroid carcinoma (PTC). It correlates with greater extension, lymph node metastasis, and advanced stage. However, the prognostic value of BRAFV600Eis weak and the search of this mutation is not recommended in clinical management of thyroid cancer. PTC are characterized by intratumor heterogeneity with wild-type and BRAFV600E tumoral cells. In a previous study, the BRAFV600E/BRAFwild-type ratio correlated with patient age, tumor volume, lymph node metastasis and with worst disease outcome. While the existence of intratumor heterogeneity in PTC is supported by many evidences, its extension, biological significance and clinical utility is questioned and must be further investigated. Primary endpoint of the study is to determine the relationship between the percentage of BRAFV600E alleles and outcome in PTC patients. Secondary endpoints are to determine the mean and median BRAFV600E/BRAFwild-type allele ratio in heterogeneous tumors; determine the relationship between the percentage of BRAFV600E alleles and clinicopathological features. The study protocol entails the assessment by digital-droplet PCR the BRAFV600E/BRAFwild-type allele ratio in a series of PTC and its correlation with clinicopathology features and outcome.

Conditions

Papillary Thyroid Cancer

Outcome Measures

Primary Outcomes (1)

• Intratumor BRAFV600E heterogeneity and outcome

  3\. Determine the relationship between the percentage of BRAFV600E alleles and outcome in PTC patients

  6 months

Secondary Outcomes (2)

• Intratumor BRAFV600E heterogeneity quantification

  5 months

• Intratumor BRAFV600E heterogeneity and clinicopathological features

  5 months

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Any patient 18 years age or more with a diagnosis of papillary thyroid carcinoma, subjected to thyroidectomy no less than 3 years before

You may qualify if:

• Patients undergone surgery because of any PTC subtypes 3 years before or more
• Availability of PTC tissue samples, well annotated
• Availability of clinical data of the patients including gender, age at diagnosis, type and extension of surgery, radiation therapy, radio-iodide therapy, TSH suppressive therapy
• Follow up of 3 years or more after surgery, including periodical 6 months assessment of TSH, thyroglobulin and AbTG, neck ultrasound evaluation and episodic hrTSH stimulation test

You may not qualify if:

• Inadequate tissue samples or clinical data and follow up
• Purity of PTC samples \< 50%

Sponsors & Collaborators

• University of Salerno: lead

Study Sites (1)

Department of Medicine and Surgery, Univeristy of Salerno

Baronissi, Salerno, 84081, Italy

Location

Related Publications (7)

• Ito Y, Miyauchi A, Kihara M, Fukushima M, Higashiyama T, Miya A. Overall Survival of Papillary Thyroid Carcinoma Patients: A Single-Institution Long-Term Follow-Up of 5897 Patients. World J Surg. 2018 Mar;42(3):615-622. doi: 10.1007/s00268-018-4479-z.

  PMID: 29349484 BACKGROUND

• Xing M, Westra WH, Tufano RP, Cohen Y, Rosenbaum E, Rhoden KJ, Carson KA, Vasko V, Larin A, Tallini G, Tolaney S, Holt EH, Hui P, Umbricht CB, Basaria S, Ewertz M, Tufaro AP, Califano JA, Ringel MD, Zeiger MA, Sidransky D, Ladenson PW. BRAF mutation predicts a poorer clinical prognosis for papillary thyroid cancer. J Clin Endocrinol Metab. 2005 Dec;90(12):6373-9. doi: 10.1210/jc.2005-0987. Epub 2005 Sep 20.

  PMID: 16174717 BACKGROUND

• Xing M, Alzahrani AS, Carson KA, Shong YK, Kim TY, Viola D, Elisei R, Bendlova B, Yip L, Mian C, Vianello F, Tuttle RM, Robenshtok E, Fagin JA, Puxeddu E, Fugazzola L, Czarniecka A, Jarzab B, O'Neill CJ, Sywak MS, Lam AK, Riesco-Eizaguirre G, Santisteban P, Nakayama H, Clifton-Bligh R, Tallini G, Holt EH, Sykorova V. Association between BRAF V600E mutation and recurrence of papillary thyroid cancer. J Clin Oncol. 2015 Jan 1;33(1):42-50. doi: 10.1200/JCO.2014.56.8253. Epub 2014 Oct 20.

  PMID: 25332244 BACKGROUND

• Xing M, Alzahrani AS, Carson KA, Viola D, Elisei R, Bendlova B, Yip L, Mian C, Vianello F, Tuttle RM, Robenshtok E, Fagin JA, Puxeddu E, Fugazzola L, Czarniecka A, Jarzab B, O'Neill CJ, Sywak MS, Lam AK, Riesco-Eizaguirre G, Santisteban P, Nakayama H, Tufano RP, Pai SI, Zeiger MA, Westra WH, Clark DP, Clifton-Bligh R, Sidransky D, Ladenson PW, Sykorova V. Association between BRAF V600E mutation and mortality in patients with papillary thyroid cancer. JAMA. 2013 Apr 10;309(14):1493-501. doi: 10.1001/jama.2013.3190.

  PMID: 23571588 BACKGROUND

• Guerra A, Sapio MR, Marotta V, Campanile E, Rossi S, Forno I, Fugazzola L, Budillon A, Moccia T, Fenzi G, Vitale M. The primary occurrence of BRAF(V600E) is a rare clonal event in papillary thyroid carcinoma. J Clin Endocrinol Metab. 2012 Feb;97(2):517-24. doi: 10.1210/jc.2011-0618. Epub 2011 Dec 14.

  PMID: 22170714 BACKGROUND

• Gandolfi G, Sancisi V, Torricelli F, Ragazzi M, Frasoldati A, Piana S, Ciarrocchi A. Allele percentage of the BRAF V600E mutation in papillary thyroid carcinomas and corresponding lymph node metastases: no evidence for a role in tumor progression. J Clin Endocrinol Metab. 2013 May;98(5):E934-42. doi: 10.1210/jc.2012-3930. Epub 2013 Mar 26.

  PMID: 23533235 BACKGROUND

• Guerra A, Fugazzola L, Marotta V, Cirillo M, Rossi S, Cirello V, Forno I, Moccia T, Budillon A, Vitale M. A high percentage of BRAFV600E alleles in papillary thyroid carcinoma predicts a poorer outcome. J Clin Endocrinol Metab. 2012 Jul;97(7):2333-40. doi: 10.1210/jc.2011-3106. Epub 2012 Apr 16.

  PMID: 22508706 BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

3 adjacent slides of formalin-fixed, paraffin-embedded (FFPE) tissues. One devoted to microscopy analysis; two for DNA and RNA extraction.

MeSH Terms

Conditions

Thyroid Cancer, Papillary

Condition Hierarchy (Ancestors)

Adenocarcinoma, Papillary; Adenocarcinoma; Carcinoma; Neoplasms, Glandular and Epithelial; Neoplasms by Histologic Type; Neoplasms; Thyroid Neoplasms; Endocrine Gland Neoplasms; Neoplasms by Site; Head and Neck Neoplasms; Endocrine System Diseases; Thyroid Diseases

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: professor

Study Record Dates

• First Submitted: December 5, 2020
• First Posted: December 11, 2020
• Study Start: February 1, 2021
• Primary Completion: April 30, 2021
• Study Completion: May 30, 2021
• Last Updated: December 14, 2020

Record last verified: 2020-12

Locations

IT (1)