Philippe Thuillier1,2, Claire Joly3,4, Zarrin Alavi5, Geneviève Crouzeix3,4, Renaud Descourt6, Gilles Quere6, Véronique Kerlan3,4, Nathalie Roudaut3,4. 1. Department of Endocrinology, University Hospital of Brest, Boulevard Tanguy Prigent, 29609, Brest Cedex, France. philippe.thuillier@chu-brest.fr. 2. EA GETBO 3878, University Hospital of Brest, Brest Cedex, France. philippe.thuillier@chu-brest.fr. 3. Department of Endocrinology, University Hospital of Brest, Boulevard Tanguy Prigent, 29609, Brest Cedex, France. 4. EA GETBO 3878, University Hospital of Brest, Brest Cedex, France. 5. Inserm CIC 1412, University Hospital of Brest, Brest Cedex, France. 6. Department of Oncology, University Hospital of Brest, Brest Cedex, France.
Abstract
BACKGROUND: The objective of this study was to investigate the association between the onset of TD and treatment efficacy in NSCLC patients who initiated anti-PD-1 blockade (Nivolumab®) and to assess the impact of TD severity and subtype on nivolumab efficacy. MATERIALS AND METHODS: This study was performed at a referral oncology center between July 20, 2015 and June 30, 2018. Patients with histologically confirmed stage IIIB/IV NSCLC in progression after one or two lines of treatment and who initiated Nivolumab were included. Thyroid function (TSH ± fT4, fT3) was monitored and patients were classified according to TD status [TD(+) versus TD(-)], severity [moderate thyroid dysfunction: TSH level between 0.1 and 0.4 or 4.0 and 10 mIU/L and severe thyroid dysfunction: TSH ≤ 0.1 or ≥ 10mUI/L) and subtype (isolated hypothyroidism, isolated hyperthyroidism and hyperthyroidism then hypothyroidism)]. Clinical endpoints were overall survival (OS) and progression-free survival (PFS). RESULTS: Among 194 eligible patients, 134 patients (median age, 63 yo; 70.1% male) were included. Forty (29.9%) patients were classified in TD(+) and had a longer OS of 29.8 months (95% CI 18.8-NR) versus 8.1 months (95% CI 5.5-11.5) in TD(-) group (p < 0.001). PFS was also longer (8.7 months (95% CI 5.3-15.1) in TD(+) versus 1.7 months (95% CI 1.6-1.9) in TD(-) group (p < 0.001). In Cox proportional hazards analysis, TD remained an independent predictive factor of OS/PFS. Severity and subtype of TD were not correlated with OS/PFS. CONCLUSIONS: This study suggested that TD induced by Nivolumab appears to be an independent predictive factor of survival, irrespective of TD severity and subtype.
BACKGROUND: The objective of this study was to investigate the association between the onset of TD and treatment efficacy in NSCLCpatients who initiated anti-PD-1 blockade (Nivolumab®) and to assess the impact of TD severity and subtype on nivolumab efficacy. MATERIALS AND METHODS: This study was performed at a referral oncology center between July 20, 2015 and June 30, 2018. Patients with histologically confirmed stage IIIB/IV NSCLC in progression after one or two lines of treatment and who initiated Nivolumab were included. Thyroid function (TSH ± fT4, fT3) was monitored and patients were classified according to TD status [TD(+) versus TD(-)], severity [moderate thyroid dysfunction: TSH level between 0.1 and 0.4 or 4.0 and 10 mIU/L and severe thyroid dysfunction: TSH ≤ 0.1 or ≥ 10mUI/L) and subtype (isolated hypothyroidism, isolated hyperthyroidism and hyperthyroidism then hypothyroidism)]. Clinical endpoints were overall survival (OS) and progression-free survival (PFS). RESULTS: Among 194 eligible patients, 134 patients (median age, 63 yo; 70.1% male) were included. Forty (29.9%) patients were classified in TD(+) and had a longer OS of 29.8 months (95% CI 18.8-NR) versus 8.1 months (95% CI 5.5-11.5) in TD(-) group (p < 0.001). PFS was also longer (8.7 months (95% CI 5.3-15.1) in TD(+) versus 1.7 months (95% CI 1.6-1.9) in TD(-) group (p < 0.001). In Cox proportional hazards analysis, TD remained an independent predictive factor of OS/PFS. Severity and subtype of TD were not correlated with OS/PFS. CONCLUSIONS: This study suggested that TD induced by Nivolumab appears to be an independent predictive factor of survival, irrespective of TD severity and subtype.
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