N C van Varsseveld1, C C van Bunderen1, A A M Franken1, H P F Koppeschaar1, A J van der Lely1, M L Drent1. 1. Department of Internal Medicine (N.C.v.V., C.C.v.B., M.L.D.), Endocrine Section, Neuroscience Campus Amsterdam, VU University Medical Center, 1007 MB Amsterdam, The Netherlands; Department of Internal Medicine (A.A.M.F.), Isala Clinics, 8000 GK Zwolle, The Netherlands; Emotional Brain and Alan Turing Institute for Multidisciplinary Health Research (H.P.F.K.), 1311 RL Almere, The Netherlands; and Division of Endocrinology and Metabolism (A.J.v.d.L.), Department of Internal Medicine, Erasmus Medical Center, 3000 CA Rotterdam, The Netherlands.
Abstract
CONTEXT: GH replacement therapy (GH-RT) is a widely accepted treatment in GH-deficient adults with nonfunctioning pituitary adenoma (NFPAs). However, some concerns have been raised about the safety of GH-RT because of its potentially stimulating effect on tumor growth. OBJECTIVE: The aim of this study was to evaluate tumor progression in NFPA patients using GH-RT. DESIGN, SETTING, AND PATIENTS: From the Dutch National Registry of Growth Hormone Treatment in Adults, a nationwide surveillance study in severely GH-deficient adults (1998-2009), all NFPA patients with ≥ 30 days of GH-RT were selected (n = 783). Data were retrospectively collected from the start of GH-RT in adulthood (baseline). MAIN OUTCOME MEASURE: Tumor progression, including tumor recurrence after complete remission at baseline and regrowth of residual tumor. RESULTS: Tumor progression developed in 12.1% of the patients after a median (range) time of 2.2 (0.1-14.9) years. Prior radiotherapy decreased tumor progression risk compared to no radiotherapy (hazard ratio = 0.16; 95% confidence interval, 0.09-0.26). Analysis in 577 patients with available baseline imaging data showed that residual tumor at baseline increased tumor progression risk compared to no residual tumor (hazard ratio = 4.5; 95% confidence interval, 2.4-8.2). CONCLUSIONS: The findings in this large study were in line with those reported in literature and provide further evidence that GH-RT does not appear to increase tumor progression risk in NFPA patients. Although only long-term randomized controlled trials will be able to draw firm conclusions, our data support the current view that GH-RT is safe in NFPA patients.
CONTEXT: GH replacement therapy (GH-RT) is a widely accepted treatment in GH-deficient adults with nonfunctioning pituitary adenoma (NFPAs). However, some concerns have been raised about the safety of GH-RT because of its potentially stimulating effect on tumor growth. OBJECTIVE: The aim of this study was to evaluate tumor progression in NFPA patients using GH-RT. DESIGN, SETTING, AND PATIENTS: From the Dutch National Registry of Growth Hormone Treatment in Adults, a nationwide surveillance study in severely GH-deficient adults (1998-2009), all NFPA patients with ≥ 30 days of GH-RT were selected (n = 783). Data were retrospectively collected from the start of GH-RT in adulthood (baseline). MAIN OUTCOME MEASURE: Tumor progression, including tumor recurrence after complete remission at baseline and regrowth of residual tumor. RESULTS:Tumor progression developed in 12.1% of the patients after a median (range) time of 2.2 (0.1-14.9) years. Prior radiotherapy decreased tumor progression risk compared to no radiotherapy (hazard ratio = 0.16; 95% confidence interval, 0.09-0.26). Analysis in 577 patients with available baseline imaging data showed that residual tumor at baseline increased tumor progression risk compared to no residual tumor (hazard ratio = 4.5; 95% confidence interval, 2.4-8.2). CONCLUSIONS: The findings in this large study were in line with those reported in literature and provide further evidence that GH-RT does not appear to increase tumor progression risk in NFPA patients. Although only long-term randomized controlled trials will be able to draw firm conclusions, our data support the current view that GH-RT is safe in NFPA patients.
Authors: Sina Jasim; Fares Alahdab; Ahmed T Ahmed; Shrikant U Tamhane; Anu Sharma; Diane Donegan; Todd B Nippoldt; M Hassan Murad Journal: Endocrine Date: 2016-11-04 Impact factor: 3.633
Authors: Margaret C S Boguszewski; Adriane A Cardoso-Demartini; Cesar Luiz Boguszewski; Wassim Chemaitilly; Claire E Higham; Gudmundur Johannsson; Kevin C J Yuen Journal: Pituitary Date: 2021-07-25 Impact factor: 4.107