Application of KW-ANOVA statistics to generate evidence for cytotoxic drug wastage induced financial burden among cancer patients: A clinical pharmacist observation.

Background: Very little is known about the effects of drug wastage costs among cancer patients in terms of "financial toxicity" leading to poor health and nonhealth outcomes. But reducing this drug waste is an attractive strategy for cost-cutting with regard to improving the health-related quality of life of the cancer patients. Thus, the objective of the study was to determine drug wastage and to generate evidence for cytotoxic drug waste and financial burden among cancer patients. On Ethics Committee approval, a prospective-observational study was conducted in cancer patients. The data were collected in data collection form. Daily monitoring was done to analyze the quantity of drug wastage which was interpreted using KW-ANOVA and further evidence was developed for corrective mitigation strategies applicable to intent drugs.

Results: Among 90 patients, 52 patients experienced drug wastage that includes 9 intent drugs which figured out unnecessary monetary units and quantity wastage that range from 80 to 50,000 INR and 10 to 500 mg, respectively. The median price value for cost of drug wastage was 237.30 INR.

Conclusion: The study generates evidence that concludes the mandatory requirement of implementation of drug wastage mitigation strategies for the drugs expected to cause wastage. Clinical pharmacist extensively contributes in oncology pharmacy practice setting to identify the intent drugs and to abate the drug wastage among medications intending to cause potential increment in drug expenditure among cancer patients on chemotherapy clinical pharmacist.