Abstract
608 Background: Somatostatin analogue (SSA) use is indicated in acromegaly and neuroendocrine tumours for symptomatic relief and tumour control. Two long-acting SSAs (lanreotide and octreotide) are currently available, but comparative real-world data on their use are limited. This study evaluated SSA use and costs in Canada. Methods: Claims data from the IQVIA Private Drug Plan (PDP), Ontario Drug Benefit (ODB) program and Régie de l’assurance-maladie du Québec (RAMQ) were compiled. Injection burden, rescue medication use and costs were compared (using unpaired t-test or Wilcoxon test) over a 12-month period from first SSA prescription. Patients (pts) were eligible if the first prescription was dispensed Sept. 2015–Jun. 2018. Results: 908 pts were included: lanreotide 120 mg, N=375; octreotide long-acting release (LAR) 30 mg, N=533. Lanreotide treatment was associated with a lower weighted average injection burden for 12 months when compared to octreotide (12.54 vs 13.44 injections/pt, respectively; p<0.0001). Pts receiving lanreotide also had lower mean use of rescue medications than those treated with octreotide (0.01 vs 0.05 claims/pt/year), although this difference was greatest during the first month of treatment (mean difference: 0.19; p<0.0001), after which differences in rescue medication use were only significant (p<0.05) at Months 5 and 6. Mean total annual costs (rescue medication + LAR) were lower for lanreotide than octreotide ($27,829.35/pt [N=373] vs $31,255.49/pt [N=530], respectively, p<0.0001). Conclusions: In the absence of clinical trials directly comparing the SSAs, factors driving treatment selection are unclear. Findings from our real-world observational study suggest treatment with lanreotide to be less burdensome and costly than octreotide and may inform treatment discussions with pts.
Published Version
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