Evaluation of pharmacy-supplied half and quarter tablets at an academic medical center

DISCLAIMER

In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

PURPOSE

Manipulation of tablet medications to produce a customized dose is common practice, and splitting tablets may reduce the acquisition cost of the medication. However, cost savings may be diminished by the cost of the increased labor and repackaging materials needed when splitting tablets. Splitting tablets may also result in safety concerns if the final products are under (eg, reduced benefit) or over (eg, toxicity) the desired dosage. The purpose of this quality improvement project was to evaluate and recommend changes for all half- and quarter-tablet medications prepared and distributed from the inpatient pharmacy at University of Utah Health (U of U Health).

SUMMARY

The evaluation included all half- and quarter-tablet medications prepared by pharmacy technicians for administration to patients admitted to U of U Health hospitals. A final list of 173 half- and quarter-tablet dosages was evaluated for opportunities to decrease the total number. On the basis of the developed criteria, 93 half- and quarter-tablet dosages (54%) were recommended to be removed from routine stock in the inpatient pharmacy. Systems remain in place to create customized half and quarter tablets if required for patient care.

CONCLUSION

Reducing the number of medications for which half and quarter tablets are used may allow pharmacy technicians to prioritize other patient care tasks and potentially decrease waste.

How Should Critical Medications Be Rationed During Shortages?

When any drug is in short supply, it must be rationed. Recent increases in the frequency of shortages require more rationing by clinicians. Most health systems have policies on managing drug shortages, but transparency of criteria according to which specific scarce medications should be rationed-and by whom-are rare. The COVID-19 pandemic offered several examples of clinical and ethical need to develop and implement clear, fair strategies for distributing medications in short supply. Lessons from the pandemic should inform strategies for managing drug shortages now and in the future.

Development of a proactive process to harmonize policy, infusion pump library, and electronic health record entries for continuous infusions at an academic medical center

PURPOSE

Standardized processes to order and prepare medications can decrease the potential for error and provider uncertainty. Our health system utilizes a standard concentration policy, smart infusion pumps, and the electronic health record (EHR) to catalog, order, and deliver intravenous medications. A need for a more proactive and formalized process to ensure medication listings are harmonized between these 3 resources was identified. Standardizing these resources can reduce confusion, reduce time spent in pharmacy operations and nursing workflow, and may improve patient safety. The purpose of this quality improvement project was to compare and resolve inconsistencies between these 3 sources and to create a new process to assure uniformity in a complex work environment.

SUMMARY

An audit-style comparison and evaluation of entries for continuous infusions within the standard concentration policy, the pump library, and the EHR was conducted. All continuous infusion entries within any one of these 3 sources were included. Key exclusion criteria included pediatric and neonatal infusions, intermittent infusions, and infusions in procedural areas. We compared the policy, the pump library, and the EHR to identify, document, and resolve discrepancies in medication name, concentration, rate, and volume; fluid restriction concentration; and upper and lower pump limits. A new method to ensure proactive continuity and consistent updates to the 3 sources was implemented into existing operational workflows. We recommended a total of 82 updates to policy (n = 48), the pump library (n = 30), and the EHR (n = 4) out of 187 continuous infusion entries.

CONCLUSION

Standardizing infusion resources will reduce confusion, and improve pharmacy operations, nursing workflow, and patient safety.

Shortages of agents used to treat antimuscarinic delirium

INTRODUCTION

Antimuscarinic delirium (AD), a potentially life-threatening condition frequently encountered by emergency physicians, results from poisoning with antimuscarinic agents. Treatment with physostigmine and benzodiazepines is the mainstay of pharmacotherapy, and use of dexmedetomidine and non-physostigmine centrally-acting acetylcholinesterase inhibitors (cAChEi) such as rivastigmine has also been described. Unfortunately, these medications are subject to drug shortages which negatively impact the ability to provide appropriate pharmacologic treatment of patients with AD.

METHODS

Drug shortage data were retrieved from the University of Utah Drug Information Service (UUDIS) database from January 2001 through December 2021. Shortages of first-line agents used to treat AD (physostigmine and parenteral benzodiazepines) and second-line agents (dexmedetomidine and non-physostigmine cAChEi) were examined. Drug class, formulation, route of administration, reason for shortage, shortage duration, generic status, and whether the drug was a single-source product (made by only one manufacturer) were extracted. Shortage overlap and median shortage durations were calculated.

RESULTS

Twenty-six shortages impacting drugs used to treat AD were reported to UUDIS from January 1, 2001 to December 31, 2021. Median shortage duration for all medication classes was 6.0 months. Four shortages were unresolved at the end of the study period. The single medication most often on shortage was dexmedetomidine, however benzodiazepines were the most common medication class on shortage. Twenty-five shortages involved parenteral formulations, and one shortage involved the transdermal patch formulation of rivastigmine. The majority (88.5%) of shortages involved generic medications, and 50% of products on shortage were single-source. The most common reported reason for shortage was a manufacturing issue (27%). Shortages were often prolonged and, in 92% of cases, overlapped temporally with other shortages. Shortage frequency and duration increased during the second half of the study period.

CONCLUSION

Shortages of agents used in the treatment of AD were common during the study period and affected all agent classes. Shortages were often prolonged and multiple shortages were ongoing at study period end. Multiple concurrent shortages involving different agents occurred, which could hamper substitution as a means of mitigating shortage. Healthcare stakeholders must develop innovative patient- and institution-specific solutions in times of shortage and work to build resilience into the medical product supply chain to minimize future shortages of drugs used for treatment of AD.

A data-driven quality-score system for rating drug products and its implications for the health care industry

The quality of drug products in the United States has been a matter of growing concern. Buyers and payers of pharmaceuticals have limited insight into measures of drug-product quality. Therefore, a quality-score system driven by data collection is proposed to differentiate between the qualities of drug products produced by different manufacturers. The quality scores derived using this proposed system would be based upon public regulatory data and independently-derived chemical data. A workflow for integrating the system into procurement decisions within health care organizations is also suggested. The implementation of such a quality-score system would benefit health care organizations by including the consideration of the quality of products while also considering price as a part of the drug procurement process. Such a system would also benefit the U.S. health care industry by bringing accountability and transparency into the drug supply chain and incentivizing manufacturers to place an increased emphasis on the quality and safety of their drug products.

US drug shortages compared to the World Health Organization's Model List of Essential Medicines for Children: A cross-sectional study

DISCLAIMER

In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

PURPOSE

To describe US drug shortages affecting medications on the 2019 World Health Organization (WHO) Model List of Essential Medicines for Children (EMLc).

METHODS

Drug shortage data from January 2014 to December 2019 were obtained from the University of Utah Drug Information Service. Shortage data for drugs on the EMLc were analyzed for the type of drug, American Hospital Formulary Service category, reason for the shortage, duration of the shortage, marketing status (generic vs brand name), and whether the agent was a single- or multisource drug.

RESULTS

From 2014 to 2019, a total of 209 drug shortages impacted medications on the EMLc, of which 77 (36.8%) remained unresolved by 2019. Of all active shortages, 13 (6.2%) began before 2014. Resolved shortages had a median duration of 5.9 months (interquartile range [IQR], 3.6-13.2 months) while active shortages had a median duration of 18.3 months (IQR, 10.9-33.5 months; P ≤ 0.0001). The therapeutic categories most impacted by drug shortages were anti-infective agents (27.3%), central nervous system agents (12.9%), and antineoplastic agents (11.0%). The reason for the shortage was not reported in 46.4% of cases. When a reason was provided, the most common reason was manufacturing problems (29.2%) followed by supply/demand mismatch (15.8%).

CONCLUSION

US drug shortages affected many medications on the WHO EMLc. Future studies should examine the global shortage climate and implications for patient care.

Prescription Drug Shortages: Pediatric Emergency and Critical Care Medications

OBJECTIVES

Drug shortages have been increasing over the past 2 decades. There are limited data on drug shortages and their effect on pediatric emergency and critical care. Our objective was to describe pediatric emergency and critical care drug shortages.

METHODS

Drug shortage data from January 2001 to December 2015 were obtained from the University of Utah Drug Information Services. Shortages were reviewed, identifying agents used in pediatric emergency and critical care. Shortage data were analyzed for the type of drug, formulation, shortage reason, duration, marketing status (generic vs brand name), or if it was a pediatric-friendly formulation, used for a high-acuity condition, or a single-source product. The availability of a substitute was also described.

RESULTS

Of 1883 products on shortage, 779 were used in pediatric emergency or critical care. The annual number of shortages decreased from 2001 to 2004, but then increased, reaching a high in 2011. The median duration for resolved shortages was 7.6 months (interquartile range, 3.0-17.6 months). The most common category affected was infectious disease drugs. High-acuity agents were involved in 27% of shortages and in 11% of pediatric-friendly formulations. An alternative agent was available for 95% of drugs, yet 43% of alternatives were also affected at some time during the study period. The most common reported reason for a shortage was manufacturing problems.

CONCLUSIONS

From 2001 to 2015, drug shortages affected a substantial number of agents used in pediatric emergency and critical care. This has had implications to the medications available for use and may impact patient outcomes. Providers must be aware of current shortages and implement mitigation strategies to optimize patient care.

The Impact of the Parenteral Opioid Medication Shortages on Opioid Utilization Practices in the Emergency Department of Two University Hospitals

INTRODUCTION

Both opioid and non-opioid analgesics are commonly utilized in treating acute and chronic pain in the emergency department (ED). Opioid stewardship efforts have focused on judicious opioid use and opioid alternatives as first-line analgesics. Parenteral opioid formulations have been impacted by periodic shortages creating the opportunity for a natural experiment to observe how emergency clinician prescribing behavior may be impacted. We investigated the change in analgesic practice related to a period of parenteral opioid shortage at two large urban, academic medical centers.

METHODS

A retrospective review of pharmacy administration data from two academic urban EDs was performed looking at time periods before, during, and after resolution of the parenteral opioid shortage. The data were analyzed by medication, dose, time, number of doses, and oral morphine milligram equivalents (MME) administered per patient.

RESULTS

The percentage of patients who received any opioid among ED visits decreased during the shortage period and did not return to pre-shortage levels after the shortage ended: 11.5% pre, 8.5% during (p=0.01), 7.2% post (NS; p=0.18). The number of doses of either oral or IV opioid doses administered during the shortage decreased significantly: 8.7% pre, 5.6% during (p=0.02) for PO, and 13.7% pre, 9.0% during (p=0.004) for IV, and neither changed during recovery from the shortage. The percentage of patients receiving non-opioid analgesics rose from 30.5% before to 45.8% (p=0.004) after the shortage. Among patients who received opioids, the MME per patient did not change across the time periods: 11.5% before, 11.2% during, 12.7% post.

CONCLUSIONS

A period of restricted opioid use due to parenteral opioid shortages led to less opioid use overall and fewer patients treated with opioids, yet no significant change in opioid MME administered per patient requiring opioids. Overall, the shift in opioid prescribing during the parenteral opioid shortage appeared to be sustained in the post-shortage period.

Developing statewide remdesivir use criteria

Purpose

This report describes our process of 4 health systems coming together to agree on standard use criteria for remdesivir as a coronavirus disease 2019 (COVID-19) treatment for patients in Utah. We hope our process provides a framework for remdesivir use in other states and insights on future use of other therapeutic agents that may also be in short supply, such as vaccines and monoclonal antibodies.

Summary

Emergency use authorization (EUA) criteria for COVID-19 treatments often allow for broad use of a treatment relative to limited supplies. Without national criteria, each health system must develop further rationing criteria. Health systems in Utah worked together as part of the state’s crisis standards of care workgroup to develop a framework for how to limit the EUA criteria for remdesivir to match available supplies. The 4 largest health systems were represented by infectious diseases specialists, chief medical officers, and pharmacists. The group met several times online and communicated via email over a 9-day period to develop the criteria. The clinicians agreed to use this framework to develop criteria for future therapeutics such as monoclonal antibodies.

Conclusion

The unique collaboration of the 4 health systems in Utah led to statewide criteria for use of remdesivir for patients with COVID-19, ensuring similar access to this limited resource for all patients in Utah.

A 2019 evaluation of opioid use disorder treatment resources in rural Utah counties

OBJECTIVES

The opioid crisis significantly affects residents of rural communities who already experience poor health outcomes based on social determinants. Therefore, this project evaluated the reported availability and accessibility of opioid use disorder (OUD) treatment resources in rural Utah county pharmacies through a multistep process intended to estimate the distance (miles) to registered (waivered) OUD care providers and community pharmacies and, thus, the ability to fill prescriptions for OUD treatment medications.

METHODS

First, the United States Department of Agriculture Economic Research Service dichotomous classification scheme was used to identify nonmetropolitan counties. Second, online resources were used to identify the volume of waivered treatment providers and community pharmacies by county. Third, the driving distances to both resources were estimated according to ZIP Code and county. Finally, the immediate availability of filling a prescription for OUD treatment medications was determined by surveying community pharmacists in rural Utah counties.

RESULTS

Nineteen of the 29 Utah counties were identified as rural and included in the study. Pharmacists in 50 of the 75 viable pharmacies completed surveys (66.7% usable response rate). OUD treatment medications were immediately available for dispensing in 90% (45 of 50) of the responding pharmacies. Two of the 19 counties (10.5%) lacked a pharmacy, and 6 of the 19 counties (31.6%) lacked a registered OUD treatment provider. Driving distances ranged from 1 mile to 71 miles to the nearest pharmacy and from 1 mile to 96 miles to the nearest waivered treatment provider.

CONCLUSION

OUD treatment medications were readily available in some but not all rural Utah pharmacies. However, geographic barriers may prevent reasonable access to treatment providers and pharmacies for residents of smaller, remote communities.

COVID-19 and Drug Shortages: A Call to Action

The ever-vulnerable medication supply chain is being further strained by the COVID-19 pandemic. Pharmacists in all settings, including managed care, will need to prepare for a potential exacerbation of existing and new drug shortages in the midst of unprecedented crisis. We summarize the major issues, discuss potential mitigation strategies, and call on our colleagues to respond with the resilience necessary to protect our patients. DISCLOSURES: The authors declare no funding sources nor conflicts of interest.

The rising cost of commonly used emergency department medications (2006-15)

OBJECTIVE

We determine how aggregate costs have changed for commonly used emergency department (ED) medications, and assess drivers of cost increases.

METHODS

Using the National Hospital Ambulatory Medical Care Survey (NHAMCS), we identified the top 150 ED medications administered and prescribed at discharge in 2015. We used average wholesale prices (AWP) for each year from 2006 to 15 from the Red Book (Truven Health Analytics Inc.). Average wholesale price per patient (AWPP) was calculated by dividing AWP by drug uses. This was then multiplied by the total drug administrations or prescriptions to estimate the total cost in a given the year. All prices were converted to 2015 dollars.

RESULTS

Aggregate costs of drugs administered in the ED increased from $688.7 million in 2006 to $882.4 million in 2015. For discharge prescriptions, aggregate costs increased from $2.031 billion in 2006 to $4.572 billion in 2015. AWPP for drugs administered in the ED in 2015 was 14.5% higher than in 2006 and 24.3% higher at discharge. The largest absolute increase in AWPP for drugs administered was for glucagon, which increased from $111 in 2006 to $235 in 2015. The largest AWPP increase at discharge was for epinephrine auto-injector, which increased from $124 in 2006 and to $481 in 2015.

CONCLUSION

Over the course of the study period, the aggregate costs of the most common medications administered in the ED increased by 28% while the costs of medications prescribed at discharge increased 125%.

Implementation of hyperlinks to medication management policies and guidelines in the electronic health record

PURPOSE

The implementation and maintenance of a process for adding and removing hyperlinks to medication management policies and guidelines approved by a pharmacy and therapeutics (P&T) committee into the electronic health record (EHR) are described.

SUMMARY

Medication management policies and guidelines approved by the P&T committee are published on the University of Utah Health intranet, making it possible to add hyperlinks to this information within the EHR. Adding these hyperlinks allows policy and guideline information to be available to clinicians on the medication ordering, verification, and administration screens without requiring a separate search of the intranet. In a quality-improvement project, all medication management policies and guidelines posted on the intranet were reviewed for relevance to the medication ordering, verification, and administration processes. Hyperlinks to relevant policies and guidelines were implemented into the EHR for specific medications. At the beginning of the review, 100 unique drugs associated with 1 or more hyperlinks were identified. The hyperlinks referenced a total of 33 Web documents: 8 policies and 25 guidelines. There are 74 medication management policies and 78 medication management guidelines approved by the P&T committee at University of Utah Health. After investigator review, 12 of 74 policies (16%) and 41 of 78 guidelines (53%) were deemed relevant during the medication ordering, verification, and administration processes. The review and hyperlink implementation process took a total of 101 hours. A continual review process was developed to enable addition and removal of hyperlinks as appropriate.

CONCLUSION

Providing direct access to relevant medication management policies and guidelines approved by the P&T committee during the medication ordering, verification, and administration processes via hyperlinks in the EHR makes formulary information readily accessible by appropriate staff. These hyperlinks may also improve adherence to formulary information, reduce medication expenditure, and improve safety and therapeutic outcomes of medication therapy.

Longitudinal trends in U.S. shortages of sterile solutions, 2001-17

PURPOSE

Trends in the shortages of sterile solutions in the United States were evaluated.

METHODS

A retrospective review of shortage data from the University of Utah Drug Information Service (UUDIS) was performed. Shortages of sterile solutions, including saline, dextrose, lactated Ringer's, and sterile water for injection, were identified. We extracted the product name, reason for the shortage, shortage duration, and primary use of the solution, examining trends in shortages over time.

RESULTS

There were 37 sterile solution shortages in the UUDIS data set, 22 of which had been resolved. The mean ± S.D. duration of a resolved shortage was 13.9 ± 9.6 months. The most common category of solution shortage was for saline products (n = 11). Manufacturing delay was the most common reason given for shortages (n = 19). In 2017, 12 new shortages were reported, and 15 solutions remained in shortage by year's end. This was the highest number of shortages at any time during the study period. The longest active shortage was for 5% dextrose/0.45% sodium chloride, which began in October 2007 and has yet to be resolved.

CONCLUSION

There were 37 shortages of sterile solutions from 2001 through 2017. Shortages became more severe after Hurricane Maria damaged manufacturing facilities in Puerto Rico, with 12 new shortages reported in 2017.

Predictors of Drug Shortages and Association with Generic Drug Prices: A Retrospective Cohort Study

BACKGROUND

Prescription drug shortages can disrupt essential patient care and drive up drug prices.

OBJECTIVE

To evaluate some predictors of shortages within a large cohort of generic drugs in the United States and to determine the association between drug shortages and changes in generic drug prices.

METHODS

This was a retrospective cohort study. Outpatient prescription claims from commercial health plans between 2008 and 2014 were analyzed. Seven years of data were divided into fourteen 6-month periods; the first period was designated as the baseline period. The first model estimated the probability of experiencing a drug shortage using drug-specific competition levels, market sizes, formulations (e.g., capsules), and drug prices as predictors. The second model estimated the percentage change in drug prices from baseline on the basis of drug shortage duration.

RESULTS

From 1.3 billion prescription claims, a cohort of 1114 generic drugs was identified. Low-priced generic drugs were at a higher risk for drug shortages compared with medium- and high-priced generic drugs, with odds ratios of 0.60 (95% confidence interval [CI] 0.44-0.82) and 0.72 (95% CI 0.52-0.99), respectively. Compared with periods of no shortage, drug shortages lasting less than 6 months, 6 to 12 months, 12 to 18 months, and at least 18 months had corresponding price increases of 6.0% (95% CI 4.7-7.4), 10.9% (95% CI 8.5-13.4), 14.2% (95% CI 10.6-17.9), and 14.0% (95% CI 9.1-19.2), respectively.

CONCLUSIONS

Study findings may not be generalizable to drugs that became generic after 2008 or those commonly used in an inpatient setting. The lowest priced drugs are at a substantially elevated risk of experiencing a drug shortage. Periods of drug shortages were associated with modest increases in drug prices.

Prescription Drug Shortages: Implications for Ambulatory Pediatrics

OBJECTIVE

To describe contemporary drug shortages affecting general ambulatory pediatrics.

STUDY DESIGN

Data from January 2001 to December 2015 were obtained from the University of Utah Drug Information Service. Two pediatricians reviewed drug shortages and identified agents used in ambulatory pediatrics. Shortage data were analyzed by the type of drug, formulation, reason for shortage, duration, marketing status, if a pediatric friendly-formulation was available, or if it was a single-source product. The availability of an alternative, and whether that alternative was affected by a shortage, also was noted.

RESULTS

Of 1883 products in shortage during the study period, 314 were determined to be used in ambulatory pediatrics. The annual number of new pediatric shortages decreased initially but then increased to a high of 38 in 2011. Of the 314 pediatric shortages, 3.8% were unresolved at the end of the study. The median duration of resolved shortages was 7.6 months. The longest shortage was for ciprofloxacin 500-mg tablets. The most common class involved was infectious disease drugs. Pediatric-friendly dosage forms were affected in 19.1% of shortages. An alternative agent was available for 86% drugs; however, 29% of these also were affected. The most common reason for shortage was manufacturing problems.

CONCLUSIONS

Drug shortages affected a substantial number of agents used in general ambulatory pediatrics. Shortages for single-source products are a concern if a suitable alternative is unavailable. Providers working in the ambulatory setting must be aware of current shortages and implement mitigation strategies to optimize patient care.

Despite Federal Legislation, Shortages Of Drugs Used In Acute Care Settings Remain Persistent And Prolonged

Early evidence suggests that provisions of the Food and Drug Administration Safety and Innovation Act of 2012 are associated with reductions in the total number of new national drug shortages. However, drugs frequently used in acute unscheduled care such as the care delivered in emergency departments may be increasingly affected by shortages. Our estimates, based on reported national drug shortages from 2001 to 2014 collected by the University of Utah's Drug Information Service, show that although the number of new annual shortages has decreased since the act's passage, half of all drug shortages in the study period involved acute care drugs. Shortages affecting acute care drugs became increasingly frequent and prolonged compared with non-acute care drugs (median duration of 242 versus 173 days, respectively). These results suggest that the drug supply for many acutely and critically ill patients in the United States remains vulnerable despite federal efforts.

Shortage of generic neurologic therapeutics: An escalating threat to patient care

OBJECTIVE

To assess longitudinal trends in shortages of generic drugs used for neurologic conditions over a 15-year period in the United States.

METHODS

Drug shortage data from the University of Utah Drug Information Service (UUDIS) from 2001 to 2015 were analyzed. Medications were included that were likely to be prescribed by a neurologist to treat a primary neurologic condition or critical for care of a patient with a neurologic condition. Trends in shortage length were assessed using standard descriptive statistics.

RESULTS

A total of 2,081 shortages were reported by UUDIS and 311 (15%) involved medications for neurologic conditions. After excluding discontinued products, 291 shortages were analyzed. The median number of neurologic drugs in shortage was 21 per month with a median duration of 7.4 months. During the three 5-year periods of 2001-2005, 2006-2010, and 2011-2015, a median of 12.5, 14, and 45 drugs were in shortage, respectively. A maximum of 50 drugs in shortage was reached in December 2012 and December 2014. By the end of the study period, 30 neurologic drugs remained in shortage. In over half of the shortages, manufacturers did not provide a reason for the shortage. When reported, manufacturing delays, followed by supply/demand issues, raw material shortages, regulatory issues, and business decisions were cited.

CONCLUSIONS

Continued drug shortages may compromise the care of patients with neurologic conditions. Manufacturers, together with professional organizations, patient advocacy groups, and the government, need to continue to address this issue, which may escalate with a growing burden of neurologic disease.

U.S. vaccine and immune globulin product shortages, 2001-15

PURPOSE

Trends in shortages of vaccines and immune globulin products from 2001 through 2015 in the United States are described.

METHODS

Drug shortage data from January 2001 through December 2015 were obtained from the University of Utah Drug Information Service. Shortage data for vaccines and immune globulins were analyzed, focusing on the type of product, reason for shortage, shortage duration, shortages requiring vaccine deferral, and whether the drug was a single-source product. Inclusion of the product into the pediatric vaccination schedule was also noted.

RESULTS

Of the 2,080 reported drug shortages, 59 (2.8%) were for vaccines and immune globulin products. Of those, 2 shortages (3%) remained active at the end of the study period. The median shortage duration was 16.8 months. The most common products on shortage were viral vaccines (58%), especially hepatitis A, hepatitis B, rabies, and varicella vaccines (4 shortages each). A vaccine deferral was required for 21 shortages (36%), and single-source products were on shortage 30 times (51%). The most common reason for shortage was manufacturing problems (51%), followed by supply-and-demand issues (7%). Thirty shortages (51%) were for products on the pediatric schedule, with a median duration of 21.7 months.

CONCLUSION

Drug shortages of vaccines and immune globulin products accounted for only 2.8% of reported drug shortages within a 15-year period, but about half of these shortages involved products on the pediatric vaccination schedule, which may have significant public health implications.

The FDA Unapproved Drugs Initiative: An Observational Study of the Consequences for Drug Prices and Shortages in the United States

BACKGROUND

Hundreds of drug products are currently marketed in the United States without approval from the FDA. The 2006 Unapproved Drugs Initiative (UDI) requires manufacturers to remove these drug products from the market or obtain FDA approval by demonstrating evidence of safety and efficacy. Once the FDA acts against an unapproved drug, fewer manufacturers remain in the market, potentially enabling drug price increases and greater susceptibility to drug shortages. There is a need for systematic study of the UDI's effect on prices and shortages of all targeted drugs.

OBJECTIVE

To examine the clinical evidence for approval and association with prices and shortages of previously unapproved prescription drugs after being addressed by the UDI.

METHODS

Previously unapproved prescription drugs that faced UDI regulatory action or with at least 1 product that received FDA approval through manufacturers' voluntary compliance with the UDI between 2006 and 2015 were identified. The clinical evidence was categorized as either newly conducted clinical trials or use of previously published literature and/or bioequivalence studies to demonstrate safety and efficacy. We determined the change in average wholesale price, presence of shortage, and duration of shortage for each drug during the 2 years before and after UDI regulatory action or approval through voluntary compliance.

RESULTS

Between 2006 and 2015, 34 previously unapproved prescription drugs were addressed by the UDI. Nearly 90% of those with a drug product that received FDA approval were supported by literature reviews or bioequivalence studies, not new clinical trial evidence. Among the 26 drugs with available pricing data, average wholesale price during the 2 years before and after voluntary approval or UDI action increased by a median of 37% (interquartile range [IQR] = 23%-204%; P < 0.001). The number of drugs in shortage increased from 17 (50.0%) to 25 (73.5%) during the 2 years before and after, respectively (P = 0.046). The median shortage duration in the 2 years before and after voluntary approval or UDI action increased from 31 days (IQR = 0-339) to 217 days (IQR = 0-406; P = 0.053).

CONCLUSIONS

The UDI was associated with higher drug prices and more frequent drug shortages when compared with the period before UDI action, while the approval process for these drugs did not necessarily require new clinical evidence to establish safety or efficacy.

DISCLOSURES

This project was not supported by any external grants or funds. Gupta was supported by the Yale University School of Medicine Office of Student Research at the time of this study. Dhruva is supported by the Department of Veterans Affairs as part of the Robert Wood Johnson Foundation Clinical Scholars program. Ross reports receiving research support through Yale University from Johnson and Johnson to develop methods of clinical trial data sharing; from Medtronic and the FDA to develop methods for postmarket surveillance of medical devices; from the FDA to establish the Yale-Mayo Clinic Center of Excellence in Regulatory Science and Innovation; from the Blue Cross Blue Shield Association to better understand medical technology evidence generation; from the Centers for Medicare & Medicaid Services to develop and maintain performance measures that are used for public reporting; and from the Laura and John Arnold Foundation to support the Collaboration on Research Integrity and Transparency at Yale. Fox reports travel support from Oklahoma Society of Health System Pharmacists, Premier Oncology Hematology Management Society, and SEHA-United Arab Emirates. Vizient provides some financial support to the University of Utah Drug Information Service to provide summaries of drug shortage information. Gupta and Ross were responsible for the conception and design of this work, drafted the manuscript, and conducted the statistical analysis. Gupta and Fox were responsible for acquisition of data. Ross provided supervision. All authors participated in the analysis and interpretation of the data and critically revised the manuscript for important intellectual content.

High Generic Drug Prices and Market Competition: A Retrospective Cohort Study

BACKGROUND

Prices for some generic drugs have increased in recent years, adversely affecting patients who rely on them.

OBJECTIVE

To determine the association between market competition levels and the change in generic drug prices in the United States.

DESIGN

Retrospective cohort study.

SETTING

Prescription claims from commercial health plans between 2008 and 2013.

MEASUREMENTS

The 5.5 years of data were divided into 11 study periods of 6 months each. The Herfindahl-Hirschman Index (HHI)-calculated by summing the squares of individual manufacturers' market shares, with higher values indicating a less competitive market-and average drug prices were estimated for the generic drugs in each period. The HHI value estimated in the baseline period (first half of 2008) was modeled as a fixed covariate. Models estimated price changes over time by level of competition, adjusting for drug shortages, market size, and dosage forms.

RESULTS

From 1.08 billion prescription claims, a cohort of 1120 generic drugs was identified. After adjustment, drugs with quadropoly (HHI value of 2500, indicating relatively high levels of competition), duopoly (HHI value of 5000), near-monopoly (HHI value of 8000), and monopoly (HHI value of 10 000) levels of baseline competition were associated with price changes of -31.7% (95% CI, -34.4% to -28.9%), -11.8% (CI, -18.6% to -4.4%), 20.1% (CI, 5.5% to 36.6%), and 47.4% (CI, 25.4% to 73.2%), respectively, over the study period.

LIMITATION

Study findings may not be generalizable to drugs that became generic after 2008.

CONCLUSION

Market competition levels were associated with a change in generic drug prices. Such measurements may be helpful in identifying older prescription drugs at higher risk for price change in the future.

PRIMARY FUNDING SOURCE

None.

Pharmacy-Administered IV to Oral Therapeutic Interchange Program: Development, Implementation, and Cost-Assessment

This study describes the development, implementation, and estimated vs. actual cost benefits of an IV to oral therapeutic interchange program. Secondary objectives were determining patient eligibility criteria and selecting medications for future inclusion in the program. Medical charts were reviewed to determine which patients were appropriate candidates for the interchange. Targeted medications were selected by reviewing the literature and the institution's drug expenditures. Five medications — famotidine, ciprofloxacin, levofloxacin, fluconazole, and azithromycin — were selected for the initial stages of the program. Preimplementation cost analysis suggested that the interchange would yield cost savings of more than $30,000 per year in medication costs alone. The interchange was piloted on a single nursing unit to determine best procedures and possible barriers to implementation. Data collected in the first 6 months after implementation indicated greater potential cost benefits than originally estimated. Including more medications in the interchange would further reduce drug acquisition costs.

U.S. drug shortages for medications used in adult critical care (2001-2016)

PURPOSE

We describe trends in U.S. shortages impacting critical care drugs from 2001 to 2016.

MATERIALS AND METHODS

Shortages within the scope of critical care were identified using data from the University of Utah Drug Information Services. Shortage characteristics were described using standard descriptive statistics and regression analysis.

RESULTS

Of 1969 shortages reported, 1004 (51%) were for drugs used in critical care. New shortages fell from 2001 to 2004, then increased, peaking in 2011 (116). For critical care shortages, 247 (24.6%) involved drugs used for high acuity conditions. The majority of drugs on shortage were parenteral, (720; 71.7%) and 393 (39.1%) were single source drugs. Alternatives were available for 887 (88.3%) drugs, although 250 (24.9%) alternatives were impacted by shortages. Infectious disease drugs were the most common drugs on shortage, with 200 (19.9%) shortages, with a median duration of 7.7months (IQR=2.8-17.3). By the end of the study, 896 (89.2%) shortages were resolved and 108 (10.8%) remained active. The median duration for active shortages was 13.6months (IQR=5.8-58.4) while the duration for resolved shortages was 7.2months (IQR=2.8-17.3).

CONCLUSIONS

Although the number of new shortages peaked in 2011 and is now declining, there remain a substantial number of active shortages impacting critical care drugs.

Unavailability of Outpatient Medications: Examples and Opportunities for Management

Drug shortages create significant challenges for patients and health care providers. Pharmacists play important roles in managing medication therapy during drug shortages. The management of drug shortages by the community pharmacist is an expanding role. Adverse drug reactions and delayed treatments are highlighted in the literature as some of the consequences of outpatient drug shortages; it is likely these harms are underreported. This commentary reviews examples and opportunities for the management of outpatient drug shortages.

Potential Association between Drug Shortages and High-Cost Medications

Shortages and sudden price increases of certain drugs may both occur emergently, with little to no warning, and they can have a dramatic impact on patient care. Little data are available linking drug shortages and price increases. Many of the same characteristics that may make medications susceptible to shortages can also place them at risk for sudden price increases. These characteristics include unapproved drugs, off-patent sole-source medications, and infrequently used medications. We reviewed drug shortage data from the University of Utah Drug Information Service to demonstrate how frequently these characteristics occurred and resulted in higher drug prices. Clinicians can use drug shortage management principles to mitigate the impact of sudden price increases for patients and health care organizations.

A Comparison of Drug Shortages in the Hospital Setting in the United States and Saudi Arabia: An Exploratory Analysis

BACKGROUND

Drug shortages are a problem that has been growing in recent years. This problem has an impact on patient outcomes and public health. Most countries have been affected by a diversity of drug supply chain problems.

OBJECTIVE

To assess explanations for differences in drug shortages reported in the hospital setting in Saudi Arabia (SA) and the United States (US).

METHODS

Data were collected in May-June 2014 from Brigham and Women's Hospital (BWH) and from 2 Saudi hospitals: King Abdulaziz University Hospital (KAUH) and King Faisal Specialist Hospital and Research Centre (KFSHRC). Drugs were classified using the World Health Organization (WHO) Anatomical Therapeutic Chemical (ATC) classification system. The drug shortages among the hospitals were compared using descriptive statistics and a chi-square test.

RESULTS

The percentage of the total number of active ingredients reported in shortage was higher in the US hospital setting (15.1%) than in the Saudi hospitals (10.3%) (p < .0001). KAUH reported the highest number of shortages (n = 133), followed by BWH (n = 42) and KFSHRC (n = 27). A significantly higher percentage of shortages involved injectable drugs in the US hospital setting (78.1%) than the Saudi hospitals (34.43%) (p ≤ .0001). Nervous system (17%) and alimentary tract and metabolism agents (15.7%) were the therapeutic areas with the higher number of reported shortages in the US and SA hospital settings, respectively.

CONCLUSIONS

The number and characteristics of shortages varied by country and hospital. Several factors, including differences in hospital characteristics, number and type of drugs available, and procurement systems, may explain differences in reported shortages.

Association Between the Number of Suppliers for Critical Antineoplastics and Drug Shortages: Implications for Future Drug Shortages and Treatment

PURPOSE

Congress has identified the critical need to evaluate contributors to ongoing cancer drug shortages. Because increased competition may reduce drug shortages, we investigated the association between the number of suppliers for first-line breast, colon, and lung antineoplastics and drug shortages.

DATA AND METHODS

Using the 2003 to 2014 Red Book and national drug shortage data from the University of Utah's Drug Information Service, we used exploratory analysis to quantify time trends in first-line drug suppliers and shortages by cancer site. Generalized mixed models were used to examine the association between the number of suppliers for individual drugs and resulting drug shortages.

RESULTS

Among 35 antineoplastic drugs approved for first-line treatment of breast, colon, and lung cancer, the number of unique suppliers varied greatly (range, 1 to 19). In 2003, 12.5%,33.3%, and 0%of breast, colon, and lung cancer drugs, respectively, experienced shortages, which increased overall by 2014, to 40.0%, 37.5%, and 54.5%, respectively. Having as mall number of drug suppliers more than doubled the odds of shortages compared with a large number of suppliers (≥5), although the results were only statistically significant with three to four suppliers (odds ratio = 2.6, P = .049) but not with one to two suppliers (odds ratio = 3.49, P = .105). One of the strongest risk factors for drug shortages was the age of the drug, with older drugs significantly more likely to experience shortages (P<.001).

CONCLUSION

Cancer drugs with a small number of suppliers had a higher risk of drug shortages than did those with$5 suppliers, but the relationship was nonlinear. Because the age of the drug is the strongest risk factor, future studies should explore underlying causes of shortages in older drugs.

Longitudinal Trends in U.S. Drug Shortages for Medications Used in Emergency Departments (2001-2014)

OBJECTIVES

This was a study of longitudinal trends in U.S. drug shortages within the scope of emergency medicine (EM) practice from 2001 to 2014.

METHODS

Drug shortage data from the University of Utah Drug Information Service were analyzed from January 2001 to March 2014. Two board-certified emergency physicians classified drug shortages based on whether they were within the scope of EM practice, whether they are used for lifesaving interventions or high-acuity conditions, and whether a substitute for the drug exists for its routine use in emergency care. Trends in the length of shortages for drugs used in EM practice were described using standard descriptive statistics and regression analyses.

RESULTS

Of the 1,798 drug shortages over the approximately 13-year period (159 months), 610 shortages (33.9%) were classified as within the scope of EM practice. Of those, 321 (52.6%) were for drugs used as lifesaving interventions or for high-acuity conditions, and of those, 32 (10.0%) were for drugs with no available substitute. The prevalence of EM drug shortages fell from 2002 to 2007; however, between January 2008 and March 2014, the number of EM drug shortages sharply increased by 435% from 23 to 123. From January 2008 to March 2014 shortages in drugs used as a direct lifesaving intervention or for high-acuity conditions increased 393% from 14 to 69, and shortages for drugs with no available substitute grew 125% from four to nine. Almost half (46.6%) of all EM drug shortages were caused by unknown reasons (the manufacturer did not cite a specific reason when contacted). Infectious disease drugs were the most common EM drugs on shortage, with 148 drug shortages totaling 2,213 months during the study period.

CONCLUSIONS

Drug shortages impacting emergency care have grown dramatically since 2008. The majority of shortages are for drugs used for lifesaving interventions or high-acuity conditions. For some, no substitute is available.

Generics Substitution, Bioequivalence Standards, and International Oversight: Complex Issues Facing the FDA

The regulations for assessing the quality of generic drugs and their bioequivalence to innovator products are outdated and need to be substantially modernized. There are multiple reasons why these changes are needed, including: (i) the regulations remain largely unchanged since the passage of the Hatch-Waxman Act in 1984; (ii) medication therapies have become substantially more complex over the three decades since the passage of the Act; (iii) a switch from an innovator drug to a generic drug, or switching from one generic to another, is not a benign process - there is substantial clinical professional judgment involved and in some instances these decisions should be better informed; and (iv) pharmaceutical ingredients for finished products, whether innovator or generic, are from multiple sources of supply, adding variability in their production, and which may not be accounted for in specification tolerances. When these elements are viewed together, they clearly suggest that more transparency of responsible manufacturers in product labels and updated standards for bioequivalence are required.

Drug shortages: a complex health care crisis

National tracking of drug shortages began in 2001. However, a significant increase in the number of shortages began in late 2009, with numbers reaching what many have termed crisis level. The typical drug in short supply is a generic product administered by injection. Common classes of drugs affected by shortages include anesthesia medications, antibiotics, pain medications, nutrition and electrolyte products, and chemotherapy agents. The economic and clinical effects of drug shortages are significant. The financial effect of drug shortages is estimated to be hundreds of millions of dollars annually for health systems across the United States. Clinically, patients have been harmed by the lack of drugs or inferior alternatives, resulting in more than 15 documented deaths. Drug shortages occur for a variety of reasons. Generic injectable drugs are particularly susceptible to drug shortages because there are few manufacturers of these products and all manufacturers are running at full capacity. In addition, some manufacturers have had production problems, resulting in poor quality product. Although many suppliers are working to upgrade facilities and add additional manufacturing lines, these activities take time. A number of stakeholder organizations have been involved in meetings to further determine the causes and effects of drug shortages. A new law was enacted in July 2012 that granted the Food and Drug Administration additional tools to address the drug shortage crisis. The future of drug shortages is unknown, but there are hopeful indications that quality improvements and additional capacity may decrease the number of drug shortages in the years to come.

Call to action: finding solutions for the drug shortage crisis in the United States

In their article in this issue of CPT, Woodcock and Wosinska are the first to clearly outline the quality and manufacturing problems causing drug shortages of generic injectables. These authors have focused on the main issue, namely, that manufacturing problems and the lack of incentives for quality products are the primary reasons for most recent shortages of generic injectable drugs.

Shortages of systemic antibiotics in the USA: how long can we wait?

Objectives

Drug shortages have risen steadily in the USA. Systemic antibiotics are most frequently in short supply raising concerns about public health safety and patient care. We sought to assess the prevalence and characteristics of systemic antibiotics in short supply as reported by federal agencies and private healthcare providers in the USA on 1 June 2011.

Methods

Data derived from the US Food and Drug Administration, American Society of Health-System Pharmacists and the Brigham and Women's Hospital. The units of analysis were active ingredient(s) and route of administration.

Key findings

Overall, 18 antibiotic active ingredients, with 20 routes of administration, were in short supply on 1 June 2011. The prevalence varied from 5.7% reported by the Food and Drug Administration and Brigham and Women's Hospital to 28.3% reported by the American Society of Health-System Pharmacists. Injectable antibiotics had the highest (28.3%) level of shortage. Shortages occurred because of problems with manufacturing (35.0%) and raw materials (15%.0), and for unknown reasons (45.0%). The average duration of the shortages was 591.7 ± 304.9 days.

Conclusions

Over one-fifth of the systemic antibiotics (one-quarter of the injectables) marketed in the USA were reported to be in short supply on 1 June 2011. One-half of the shortages were attributed to problems with manufacturing and raw materials although reasons for shortages are often unknown.