Cited by 154Multiple and Secondary Primary CancersThyroid Cancer Diagnosis and TreatmentThyroid and Parathyroid Surgery

Risk of hematologic malignancies after radioiodine treatment of well-differentiated thyroid cancer

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Molenaar, Remco J., Sidana, Surbhi, Radivoyevitch, Tomas, Advani, Anjali S., Gerds, Aaron T., Carraway, Hetty E., Angelini, Dana, Kalaycio, Matt +7 more·2018·Journal of Clinical Oncology

Abstract

Purpose To investigate the risk and outcomes of second hematologic malignancies (SHMs) in a population-based cohort of patients with well-differentiated thyroid cancer (WDTC) treated or not with radioactive iodine (RAI). Methods Patients with WDTC were identified from SEER registries. Competing risk regression analysis was performed to calculate the risks of SHMs that occurred after WDTC treatment and outcomes after SHM development were assessed. Results Of 148,215 patients with WDTC, 53% received surgery alone and 47% received RAI. In total, 783 patients developed an SHM after a median interval of 6.5 years (interquartile range, 3.3 to 11.2 years) from WDTC diagnosis. In multivariable analysis, compared with those undergoing thyroidectomy alone, RAI treatment was associated with an increased early risk of developing acute myeloid leukemia (AML; hazard ratio, 1.79; 95% CI, 1.13 to 2.82; P = .01) and chronic myeloid leukemia (CML; hazard ratio, 3.44; 95% CI, 1.87 to 6.36; P < .001). This increased risk of AML and CML after RAI treatment was seen even in low-risk and intermediate-risk WDTC tumors. Occurrence of AML but not CML in patients with WDTC was associated with shorter median overall survival compared with matched controls (8.0 years v 31.0 years; P = .001). In addition, AML developing after RAI trended toward inferior survival compared with matched controls with de novo AML (median overall survival, 1.2 years v 2.9 years; P = .06). Conclusion Patients with WDTC treated with RAI had an increased early risk of developing AML and CML but no other hematologic malignancies. AML that arises after RAI treatment has a poor prognosis. RAI use in patients with WDTC should be limited to patients with high-risk disease features, and patients with WDTC treated with adjuvant RAI should be monitored for myeloid malignancies as part of cancer surveillance.

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  • In a retrospective review of the SEER registry (n=148,215), the risk for hematologic malignancies after postsurgery radioiodine treatment of well-differentiated thyroid cancer appears significantly higher than in patients managed with surgery alone (hazard ratio, 1.43; 95% CI, 1.20-1.69; P<0.001).

    “In a retrospective review of the Surveillance, Epidemiology, and End Results Program (SEER) registry ( n 5 148,215), the risk for hematologic malignancies after postsurgery radioiodine treatment of well-differentiated thyroid cancer appears to be signi fi cantly higher than patients managed with surgery alone (hazard ratio, 1.43; 95% CI, 1.20 to 1.69; P , 0.001) ( 99 );”
  • The absolute risk of hematologic malignancies after surgery plus radioiodine therapy appears quite low, approximately 0.54% within 10 years.

    “however, the absolute risk appears quite low, approximately 0.54% within 10 y of surgery plus radioiodine therapy.”

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Authors
Molenaar, R. J., Sidana, S., Radivoyevitch, T., Advani, A. S., Gerds, A. T., Carraway, H. E., Angelini, D., Kalaycio, M., Nazha, A., Adelstein, D. J., Nasr, C., Maciejewski, J. P., Majhail, N. S., Sekeres, M. A., & Mukherjee, S.
Affiliations
Cleveland Clinic (US)
Venue
Journal of Clinical Oncology
Published
2018-06-20
Volume
36
Issue
18
Pages
1831-1839
ISSN
  • 0732-183X (ISSN-L)
  • 1527-7755
OpenAlex
W2780504388
Cited by
154
References
26
Citations by year
2026: 4 · 2025: 18 · 2024: 13 · 2023: 16 · 2022: 28 · 2021: 21 · 2020: 10 · 2019: 16 · 2018: 27 · 2016: 1
FWCI
11.36
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Oncology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R35HL135795)
  • National Cancer Institute (K12CA076917, U10CA180853)
Topics
  • Health Sciences › Medicine › Epidemiology › Multiple and Secondary Primary Cancers
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Cancer Diagnosis and Treatment
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
Keywords
differentiated thyroid cancer, radioiodine therapy, second primary malignancy, hematologic malignancies, acute myeloid leukemia, chronic myeloid leukemia, thyroidectomy, overall survival, cancer surveillance, competing risk regression
MeSH terms
Adult, Female, Humans, Iodine Radioisotopes, Male, Middle Aged, Neoplasms, Radiation-Induced, Registries, Risk, Thyroid Neoplasms, Thyroidectomy, United States, Cohort Studies, SEER Program, Hematologic Neoplasms

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