PURPOSE: The aim of this analysis was to evaluate the response to standard activity of (131)I-meta-iodobenzylguanidine (MIBG) in patients with disseminated neuroendocrine tumours (NETs), comparing overall survival of patients with symptomatic response, tumour size (as assessed by CT) and relevant plasma tumour markers. METHODS: A retrospective review of patients who had undergone (131)I-MIBG treatment between March 2001 and December 2006 was carried out. The administered activity of (131)I-MIBG was 5.5 GBq (NETs) and 7 GBq (phaeochromocytoma). Three cycles of treatment were planned with an interval of 10-12 weeks. A pre-therapy scan with (123)I-MIBG was performed to ascertain appropriate biodistribution. RESULTS: Thirty-eight patients were identified. Only two patients developed significant bone marrow suppression. Symptomatic response: data were available in 37 of 38 patients: 15 patients had improved symptoms, 19 had no improvement in symptoms and 3 were asymptomatic. In those with a symptomatic response, the median overall survival was 58 months vs no response of 20.0 months (p = 0.001). CT response: in those with stable disease, the median overall survival was 58 months compared with progressive disease of 16.0 months. The difference between these groups was significant (p = 0.006). Hormonal response: this was available in only 20 of 38 patients. The median overall survival was the same for patients that had increased hormone levels and patients that had stable/decreased hormone levels (48 months). CONCLUSION: Standard activity (131)I-MIBG is well tolerated. Symptomatic response to treatment is a significant predictor of overall survival. Whilst CT response also appears to predict survival, hormonal levels do not appear to correlate with survival.
PURPOSE: The aim of this analysis was to evaluate the response to standard activity of (131)I-meta-iodobenzylguanidine (MIBG) in patients with disseminated neuroendocrine tumours (NETs), comparing overall survival of patients with symptomatic response, tumour size (as assessed by CT) and relevant plasma tumour markers. METHODS: A retrospective review of patients who had undergone (131)I-MIBG treatment between March 2001 and December 2006 was carried out. The administered activity of (131)I-MIBG was 5.5 GBq (NETs) and 7 GBq (phaeochromocytoma). Three cycles of treatment were planned with an interval of 10-12 weeks. A pre-therapy scan with (123)I-MIBG was performed to ascertain appropriate biodistribution. RESULTS: Thirty-eight patients were identified. Only two patients developed significant bone marrow suppression. Symptomatic response: data were available in 37 of 38 patients: 15 patients had improved symptoms, 19 had no improvement in symptoms and 3 were asymptomatic. In those with a symptomatic response, the median overall survival was 58 months vs no response of 20.0 months (p = 0.001). CT response: in those with stable disease, the median overall survival was 58 months compared with progressive disease of 16.0 months. The difference between these groups was significant (p = 0.006). Hormonal response: this was available in only 20 of 38 patients. The median overall survival was the same for patients that had increased hormone levels and patients that had stable/decreased hormone levels (48 months). CONCLUSION: Standard activity (131)I-MIBG is well tolerated. Symptomatic response to treatment is a significant predictor of overall survival. Whilst CT response also appears to predict survival, hormonal levels do not appear to correlate with survival.
Authors: G Kaltsas; M Korbonits; E Heintz; J J Mukherjee; P J Jenkins; S L Chew; R Reznek; J P Monson; G M Besser; R Foley; K E Britton; A B Grossman Journal: J Clin Endocrinol Metab Date: 2001-02 Impact factor: 5.958
Authors: Dik J Kwekkeboom; Wouter W de Herder; Boen L Kam; Casper H van Eijck; Martijn van Essen; Peter P Kooij; Richard A Feelders; Maarten O van Aken; Eric P Krenning Journal: J Clin Oncol Date: 2008-05-01 Impact factor: 44.544
Authors: G Paganelli; L Bodei; D Handkiewicz Junak; P Rocca; S Papi; M Lopera Sierra; M Gatti; M Chinol; M Bartolomei; M Fiorenza; C Grana Journal: Biopolymers Date: 2002 Impact factor: 2.505
Authors: Mirosław L Nowicki; Jarosław B Cwikla; Artur J Sankowski; Sergey Shcherbinin; Josh Grimmes; Anna Celler; John R Buscombe; Andrzej Bator; Maciej Pech; Renata Mikołajczak; Dariusz Pawlak Journal: Med Sci Monit Date: 2014-08-02