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Treatment patterns, health state, and health care resource utilization of patients with radioactive iodine refractory differentiated thyroid cancer

Authors Gianoukakis A, Flores N, Pelletier C, Forsythe A, Wolfe G, Taylor M

Received 12 December 2015

Accepted for publication 7 February 2016

Published 30 May 2016 Volume 2016:8 Pages 67—76


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Kenan Onel

Andrew G Gianoukakis,1 Natalia M Flores,2 Corey L Pelletier,3 Anna Forsythe,3 Gregory R Wolfe,2 Matthew H Taylor4

1Division of Endocrinology and Metabolism, Harbor-UCLA Medical Center, The University of California, Los Angeles, 2Health Outcomes Research, Kantar Health, Foster City, CA, 3Global Value and Access, Eisai, Inc., Woodcliff Lakes, NJ, 4Division of Hematology and Medical Oncology, Oregon Health and Science University, Portland, OR, USA

Background: Patients with differentiated thyroid cancer (DTC) often respond well to treatment but some become refractory to radioactive iodine (RAI) treatment, and treatment options are limited. Despite the humanistic and economic burden RAI refractory disease imposes on patients, published research concerning treatment patterns and health care resource utilization is sparse.
Methods: Data were collected from an online retrospective chart review study in the US and five European Union (EU) countries (France, Germany, Italy, Spain, and UK) with physicians recruited from an online panel. Physicians (N=211) provided demographics, disease history, treatment information, and health care resource utilization for one to four of their patients with radioactive iodine refractory differentiated thyroid cancer (RR-DTC).
Results: The majority of the patients with RR-DTC (N=623) were female (56%), and their mean age was 58.2 years. In this sample, 63.2% had papillary thyroid cancer and 57.0% were in Stage IV when deemed RAI refractory. Patients with RR-DTC experienced regional recurrence in the thyroid bed/central neck area (25.3%) and had distant metastatic disease (53.6%). At the time data were collected, 50.7% were receiving systemic treatment. Of those, 78.5% were on first-line treatment and 62.7% were receiving multikinase inhibitors. Regional differences for prescribed treatments were observed; the US was more likely to have patients receiving multikinase inhibitors (79.2%) compared with UK (41.2%) and Italy (17.1%). Additional details regarding treatment patterns and resource utilization are discussed.
Conclusion: The current study aimed to obtain a greater understanding of RR-DTC treatment globally. These results can assist in the development and implementation of treatment guidelines and ultimately enhance the care of patients with RR-DTC.

Keywords: thyroid cancer, disease burden, therapy options, cost of illness

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