# The unreliability of estimated release dates in hospital drug shortage management: A case study of hospital pharmacy operations during the COVID-19 pandemic

## TL;DR

This paper shows that estimated release dates for drugs during shortages are often unreliable, complicating hospital pharmacy decisions.

## Contribution

The study provides novel empirical evidence on the inaccuracy of estimated release dates during drug shortages.

## Key findings

- Estimated release dates frequently do not align with actual shipment times.
- ERD information is subject to unpredictable changes, complicating hospital operations.
- The findings highlight the need for better decision-making strategies under unreliable lead time information.

## Abstract

Drug shortages are prominent, persistent operational challenges that hospital pharmacies have been facing for years. During a drug shortage, hospital pharmacists must solve the problem of how best to invest resources to mitigate the effect of the drug shortage on patient health care. One piece of data they use to inform their decision-making is the estimated release date (ERD) of a drug, a lead time estimate given from the pharmaceutical manufacturer specifying when the next release of a drug (that is on shortage) will occur. Working with a hospital collaborator, we collected a novel set of ERD and shipment data to analyze the accuracy of this information and the impact on decision-making at hospitals. We show via statistical analysis that ERD information tends to be an inaccurate indicator of when the hospital should expect to receive more product and is subject to change unpredictably, adding additional complexity to managing drug shortages. We discuss managerial insights that stem from this analysis and lay a foundation for future research studying decision-making with unreliable lead time information.