Impact of oncology drug shortages on patient therapy: unplanned treatment changes.

J Oncol Pract 2013 Jul 19;9(4):e122-8. Epub 2013 Mar 19.

Continuum Cancer Center; Columbia University College of Physicians and Surgeons; and Albert Einstein College of Medicine, New York, NY.

Purpose: Cancer drug shortages have increased considerably over the past 5 years, but quantitative analyses of the scope and effects are limited. We assessed the effects of drug shortages on outpatient medication use in a single New York City university hospital.

Methods: We examined pharmacy records for drug shortages, as defined by the American Society of Health-System Pharmacists. We assessed outpatient records for all patients with cancer treated with infusional antineoplastic medications from April 2010 to September 2010 and April 2011 to September 2011.

Results: Twelve medications were in shortage in 2010 and 22 in 2011. Drugs in shortage were used for 170 patients (50.8%) in 2010 and 241 patients (63.6%) in 2011 (P < .001). Of 235 patients treated in August-September 2011, there were 23(9.8%) documented therapy changes due to shortages, compared with zero changes in August-September 2010 (P < .001). Among patients treated in August-September 2010, 24 (11.4%) received paclitaxel and 19 (9.0%) received docetaxel. Among patients treated in August-September 2011, 11 (4.7%) received paclitaxel and 38 (16.2%) received docetaxel, a 69% decrease for paclitaxel and 80% increase for docetaxel from 1 year prior (P = .009, and P = .024, respectively). The estimated cost of a single treatment with paclitaxel for one patient with body-surface area 1.75 was $47.59 versus $858.39 for docetaxel, a 1,704% increase. Surveyed physicians frequently reported lower level evidence (30.4%) and increased risk of toxicity (34.8%) with alternative therapy in drug shortage cases.

Conclusion: Oncology drug shortages affected the majority of patients in our center and increased at an alarming rate. Drug shortages have substantial economic costs and mandate treatment changes that may affect efficacy and toxicity.

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Source
http://dx.doi.org/10.1200/JOP.2012.000799DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3710178PMC
July 2013
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