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

Drug Shortages Prior to and During the COVID-19 Pandemic

Importance

Drug shortages are a chronic and worsening issue that compromises patient safety. Despite the destabilizing impact of the COVID-19 pandemic on pharmaceutical production, it remains unclear whether issues affecting the drug supply chain were more likely to result in meaningful shortages during the pandemic.

Objective

To estimate the proportion of supply chain issue reports associated with drug shortages overall and with the COVID-19 pandemic.

Design, Setting, and Participants

This longitudinal cross-sectional study used data from the IQVIA Multinational Integrated Data Analysis database, comprising more than 85% of drug purchases by US pharmacies from wholesalers and manufacturers, from 2017 to 2021. Data were analyzed from January to May 2023.

Exposure

Presence of a supply chain issue report to the US Food and Drug Administration or the American Society of Health-Systems Pharmacists (ASHP).

Main Outcomes and Measures

The main outcome was drug shortage, defined as at least 33% decrease in units purchased within 6 months of a supply chain issue report. Random-effects logistic regression models compared the marginal odds of shortages for drugs with vs without reports. Interaction terms assessed heterogeneity prior to vs during the COVID-19 pandemic and by drug characteristics (formulation, age, essential medicine status, clinician- vs self-administered, sales volume, and number of manufacturers).

Results

A total of 571 drugs exposed to 731 supply chain issue reports were matched to 7296 comparison medications with no reports. After adjusting for drug characteristics, 13.7% (95% CI, 10.4%-17.8%) of supply chain issue reports were associated with subsequent drug shortages vs 4.1% (95% CI, 3.6%-4.8%) of comparators (marginal odds ratio [mOR], 3.7 [95% CI, 2.6-5.1]). Shortages increased among both drugs with and without reports in February to April 2020 (34.2% of drugs with supply chain issue reports and 9.5% of comparison drugs; mOR, 4.9 [95% CI, 2.1-11.6]), and then decreased after May 2020 (9.8% of drugs with reports and 3.6% of comparison drugs; mOR, 2.9 [95% CI, 1.6-5.3]). Significant associations were identified by formulation (parenteral mOR, 1.9 [95% CI, 1.1-3.2] vs oral mOR, 5.4 [95% CI, 3.3-8.8]; P for interaction = .008), WHO essential medicine status (essential mOR, 2.2 [95% CI, 1.3-5.2] vs nonessential mOR, 4.6 [95% CI, 3.2-6.7]; P = .02), and for brand-name vs generic status (brand-name mOR, 8.1 [95% CI, 4.0-16.0] vs generic mOR, 2.4 [95% CI, 1.7-3.6]; P = .002).

Conclusions and Relevance

In this national cross-sectional study, supply chain issues associated with drug shortages increased at the beginning of the COVID-19 pandemic. Ongoing policy work is needed to protect US drug supplies from future shocks and to prioritize clinically valuable drugs at greatest shortage risk.

Price increase negotiations to address drug shortages in South Korea's national health insurance

South Korea has adopted a unique approach to address drug shortages by increasing reimbursement prices within its National Health Insurance Service. This study aims to analyze the characteristics, increase rates, affecting factors, and budget impacts of products that have increased price through the negotiation system. Between 2007 and 2022, there were price increase negotiations over 244 items. Of these, price increase negotiations were successful for 217 items, resulting in an agreement rate of 89%. The average rate of price increase for the agreed-upon products was 37.8%, and the overall budget increase for drugs with price increases (n = 217) was approximately 24.5%. Budget impact of each variable of the negotiated agreements showed that the number of negotiated agreement items was smaller after 2015 than before 2015, but each total budget impact (initial budget, increased budget, and final budget) and the average budget impact were higher. Although domestic companies accounted for a larger overall budget, the average budget per item was larger for multinational companies. The correlation analysis of the ratio of price increase and budget impact variables showed that the ratio of price increase was positively and significantly correlated with the increased budget, while it was negatively but not significantly correlated with the initial and final budgets. The South Korean model of increasing reimbursement prices in public insurance for drugs at risk of shortages serves as an exemplary case for not only securing patient access but also considering budget management.

Managing opioid waste, cost, and opportunity for drug diversion in the emergency department

INTRODUCTION

Management of pain is a component of 80% of all emergency department (ED) visits, and intravenous (IV) opioids are most commonly used to treat moderate to severe pain. Since the dose of stock vials is rarely purchased based on provider ordering patterns, there is often a discrepancy between ordered doses and the dose of the stock vial, leading to waste. Here, waste is defined as the difference between the dose of the stock vials used to fill an order and the ordered dose. Drug waste is problematic as it increases the chance of administering the incorrect dose, it is a source of lost revenue, and in the context of opioids, it increases the opportunity for drug diversion. In this study, we sought to utilize real-world data to describe the magnitude of morphine and hydromorphone waste in the studied EDs. We also applied scenario analyses based on provider ordering patterns to simulate the effects of cost versus opioid waste minimization when making purchasing decisions for the dose of stock vial of each opioid.

METHODS

This was an observational analysis of IV morphine and hydromorphone orders across three EDs within a health care system between December 1, 2014 and November 30, 2015. In the primary analysis we measured total waste and cost of all ordered hydromorphone and morphine, and we created logistic regression models for each opioid to estimate the odds that a given ordered dose would create waste. In the secondary scenario analysis we determined the total waste created and total cost to satisfy all written orders for both opioids with respect to prioritizing minimizing waste versus cost.

RESULTS

Among a total of 34,465 IV opioid orders, 7866 (35%) of morphine orders created 21,767 mg of waste, and 10,015 (85%) of hydromorphone orders created 11,689 mg of waste. Larger dose orders were associated with a smaller likelihood of waste in both morphine and hydromorphone due to the doses of stock vials available. In the waste optimization scenario, relative to the base scenario, total waste, which included waste from both morphine and hydromorphone, was reduced by 97% and cost was reduced by 11%. In the cost optimization scenario, cost was reduced by 28% but waste increased by 22%.

CONCLUSION

As hospitals continue to seek strategies to reduce costs and mitigate the harms of opioid diversion amidst the opioid epidemic, this study shows that optimizing the dose of the stock vial to minimize waste using provider ordering patterns, could mitigate risk while also reducing cost. Limitations included the use of data from EDs within a single health system, drug shortages that affected stock vial availability, and finally, the actual cost of stock vials, used for cost calculations, can differ based on a variety of factors.

Do Medicine Shortages Reduce Access and Increase Pharmaceutical Expenditure? A Retrospective Analysis of Switzerland 2015-2020

OBJECTIVES

We analyze how shortages led to changes in access to and expenditure for pharmaceutical care in the Swiss health system between 2015 and 2020.

METHODS

We combined cross-sectional and longitudinal data to study medicine shortages by incidence, duration, intensity, and pharmaceutical expenditure. We assessed 4119 markets defined by active ingredient, dosage form, and strength. We classified markets by essential medicine status and other characteristics. We differentiated shortages by the degree to which alternative options are still available. We investigated the first lockdown period of the pandemic, considering also the shortage of COVID-19-specific medicines.

RESULTS

A total of 1964 markets never reported shortages, and 1336 markets reported some shortages; 819 markets reported shortages lasting at least 14 days. Markets with a higher number of manufacturers, a lower co-payment share, and lower prices more frequently reported shortages. We did not find differences by essential medicine status. In 50% of instances, the average price of substitutes available was lower than the price of the product on shortage. The total pharmaceutical expenditure attributed to shortages increased by CHF 17.00 million (€15.63 million) in 2018.

CONCLUSIONS

Medicine shortages have substantially reduced access to pharmaceuticals. Switzerland has experienced shortages on a scale similar to that in other countries. Prices of substitutes available at the time of shortages can be higher or lower, indicating an unelastic demand for medicines.

Nearly all thirty most frequently used emergency department drugs experienced shortages from 2006-2019

BACKGROUND

Drug shortages contribute to avoidable medication error and patient harm; these shortages are exacerbated in the Emergency Department due to the time-sensitive nature of acute care.

METHODS

We performed a cross-sectional study to describe the frequency and duration of drug shortages associated with the most frequent medications administered in the ED. We identified the most frequently used ED medications and calculated number of visits associated with these medications using the 2006-2019 National Hospital Ambulatory Medical Care Survey. We obtained the frequency and duration of shortages associated with these medications from the University of Utah Drug Information System. We calculated duration and total ED visits associated with shortages of the most frequently used ED medications.

RESULTS

From 2006 through 2019, the most frequently used drugs were ondansetron (255.1 million ED visits), 0.9% normal saline (251.3 million ED visits), and ibuprofen (188.5 million ED visits). All but two of the top thirty most frequently used medications experienced a shortage. The median shortage duration was 425 days, while the longest were for injectable morphine (3,202 days). The number of ED visits associated with drugs experiencing shortages increased from 2,564,425 (2.2% of U.S. ED visits) in 2006 to 67,221,968 (60.4%) in 2019. The most common reasons for shortage include manufacturing delays and increased demand.

CONCLUSIONS AND RELEVANCE

Drug shortages were more frequent and persistent from 2006 through 2019. Further studies on the clinical impact of these shortages are needed, in addition to policy interventions to mitigate shortages.

Ultrasound-Guided Nerve Blocks for Painful Hand Injuries: A Randomized Control Trial

OBJECTIVES

 Traumatic hand injuries present to emergency departments frequently. Pain secondary to these injuries is typically managed with opioids, which may be inadequate and have side effects. Ultrasound (US)-guided forearm nerve blocks have emerged as an alternative modality for patients with acute pain from isolated extremity injuries.

METHODS

 We performed a non-blinded, consecutive, randomized pragmatic trial of US-guided forearm nerve blocks using medium and long-acting anesthetic versus usual care for a six-day period around July 4th, 2017. Adults who sustained a traumatic or blast injury of their hands were considered. Consecutive emergency department patients were consented, enrolled and randomized into a study group (block) or control (standard care). The study group received a US-guided forearm block using a 50/50 mix of 1% lidocaine and 0.5% bupivacaine. The primary outcome was median pain scores via a 100-point visual analog scale at 15, 60, and 120 minutes after the nerve block compared to the baseline pain score. The secondary outcome was mean morphine equivalents administered.

RESULTS

 Sixteen patients were screened and 12 were randomized: six to the treatment group and six to the control group. Median pain reduction from baseline at 15, 60, and 120 minutes in the forearm block group was -35 (IQR=10), -30 (IQR=50), and -20 (IQR=70, versus -5 (IQR=10), -20.5 (IQR=20), -20 (IQR=70) in the control group. At all time points, patient-reported pain scores decreased significantly over baseline in the forearm block group, whereas non-significant reductions in pain scores occurred in the control group.

CONCLUSION

US-guided forearm blocks for acute traumatic hand injuries resulted in greater pain relief when compared to usual care.

Medication Dosing Safety for Pediatric Patients: Recognizing Gaps, Safety Threats, and Best Practices in the Emergency Medical Services Setting. A Position Statement and Resource Document from NAEMSP

BACKGROUND

Millions of patients receive medications in the Emergency Medical Services (EMS) setting annually, and dosing safety is critically important. The need for weight-based dosing in pediatric patients and variability in medication concentrations available in the EMS setting may require EMS providers to perform complex calculations to derive the appropriate dose to deliver. These factors can significantly increase the risk for harm when dose calculations are inaccurate or incorrect.

METHODS

We conducted a scoping review of the EMS, interfacility transport and emergency medicine literature regarding pediatric medication dosing safety. A priori, the authors identified four research topics: (1) what are the greatest safety threats that result in significant dosing errors that potentially result in harm to patients, (2) what practices or technologies are known to enhance dosing safety, (3) can data from other settings be extrapolated to the EMS environment to inform dosing safety, and (4) what impact could standardization of medication formularies have on enhancing dosing safety. To address these topics, 17 PICO (Patient, Intervention, Comparison, Outcome) questions were developed and a literature search was performed.

RESULTS

After applying exclusion criteria, 70 articles were reviewed. The methods for the investigation, findings from these articles and how they inform EMS medication dosing safety are summarized here. This review yielded 11 recommendations to improve safety of medication delivery in the EMS setting.

CONCLUSION

These recommendations are summarized in the National Association of EMS Physicians® position statement: Medication Dosing Safety for Pediatric Patients in Emergency Medical Services.

A Cross-Sectional Survey of Medical Trainee Experiences During Medication Shortages

BACKGROUND

Medication shortages prevent patients from receiving optimal care. Despite the frequency with which medical trainees care for inpatients, no assessment of their experiences in medication shortage management has been performed.

OBJECTIVE

We evaluated trainees' experiences managing medication shortages.

METHODS

We performed a cross-sectional survey of trainees postgraduate year 2 (PGY-2) and above in medicine, anesthesiology, and emergency medicine departments at 2 academic centers in 2018-2019. Categorical and ordinal assessments evaluated shortage awareness, substitution availability, pharmacy and therapeutics committee-based restrictions, communication, and education. Regressions were performed to determine effect of PGY, department, and institution on responses.

RESULTS

A total of 168 of 273 subjects completed the survey (62% response rate). Most (95%, 159 of 168) reported managing medication shortages during training; 51% (86 of 168) described managing clinically relevant shortages daily or weekly. Seventy-seven percent (129 of 168) noted equivalent alternatives were unavailable at least one-quarter of the time, and 43% (72 of 168) reported clinically necessary medications were restricted at least weekly. Fifty-four percent (89 of 168) and 64% (106 of 167) of respondents discussed clinically relevant shortages with supervising physicians or patients "some of the time" or less, respectively. Most respondents (90%, 151 of 168) reported they would benefit from shortage management training, but few (13%, 21 of 168) reported prior training.

CONCLUSIONS

Although trainees reported frequent involvement in clinically impactful shortage management, medication shortage communication between trainees and supervising physicians or patients appears sporadic. Medication shortage management training is uncommon but perceived as beneficial.

Characteristics of Recent Generic Drug Approvals by the US Food and Drug Administration

This cross-sectional study describes the characteristics of abbreviated new drug applications approved by the US Food and Drug Administration, focusing on those with limited generic competition or with history of shortages.

Medicine Shortages: Gaps Between Countries and Global Perspectives

Introduction: Over the last decade, global health policies and different research areas have focused on the relevance and impact of medicine shortages. Published studies suggest there have been difficulties with access to medicines since the beginning of the 20th century, and there have been advances in our understanding and management of the problem since then. However, in view of global and regional health care concerns with shortages, we believe this phenomenon needs to be characterized and described more fully regarding the types of medicines affected, possible causes, and potential strategies to address these. The aim of this scoping review was to identify, compare if possible, and characterize the recent literature regarding the situation of medicines shortages between countries, and provide different perspectives, including a global context and national approaches.

Methodology: A scoping study presented as a narrative review of the situation and findings principally based on published articles.

Results: Based on the reported cases in the literature, a typology of medicines shortage and supply interruption episodes and their causes were proposed; national approaches to notify and manage the medicines shortages cases were described and classified by update frequency; principal differences between market and supply chain management perspectives of the situation were identified and global and countries’ perspectives were described.

Conclusion: Policy makers require solutions that prevent those cases in which the population’s health is affected by episodes of medicine shortages and/or interruption in the supply chain. There is also a need to generate a glossary related to logistics management and the availability of medicines which will be useful to understand and overcome shortages. In addition, recognize that potential solutions are not only related with actions linked to research, development and innovation, but much wider. Overall, we believe this article can act as a basis for future discussions in this important area.

Impact of Oncology Drug Shortages on Chemotherapy Treatment

Prescription drug shortages began to increase markedly in the mid-2000s, including sterile injectable products such as chemotherapy drugs. Using Medicare claims linked to Surveillance Epidemiology and End Results (SEER), we examined outpatient chemotherapy use during shortage periods relative to the months before and after a shortage for newly diagnosed patients with breast, colorectal, leukemia, lung, lymphoma, ovarian, or pancreatic cancer (N = 182,470). For most drugs, we found little impact of shortages on either the fraction of patients receiving that drug or the quantity provided. In some cases, we found declines in utilization: 4% for doxorubicin and fluorouracil; 2.9% for oxaliplatin; and about 1% for cytarabine, dacarbazine, and leuprolide. Although shortages for a few drugs resulted in substantial reductions in use, in most cases, they resulted in little to no reduction. We discuss potential explanations for these counterintuitive findings, including potential limitations of current drug shortage reporting methods.

The Drug Shortage Crisis in the United States: Impact on Cancer Pharmaceutical Safety

Drug shortages pose a significant public health concern in the United States, and cancer drugs are among those most affected. Shortages present serious safety risks for patients and substantial burden on providers and the healthcare system. Multifaceted drivers of this complex problem include manufacturing disruptions, raw material shortages, regulatory issues, market dynamics, and limited financial incentives that reward quality and production of off-patent drugs. Oncology drugs in short supply have resulted in substitution of less effective or more toxic alternatives, medication errors, and treatment delays, and are especially concerning for medications with no adequate substitute. Consequently, patient outcomes such as disease progression and survival have been adversely affected. Furthermore, emerging gray markets have contributed to cost-prohibitive markups and introduction of counterfeit products that compromise patient safety. The Food and Drug Administration plays a key role in preventing and managing pharmaceutical shortages, largely through regulations requiring early notification of manufacturing interruptions. Other proposed strategies similarly target upstream causes and center on reducing regulatory hurdles for manufacturers and increasing incentives for market entry and quality improvement. Despite progress in preventing supply disruptions, continued exploration of underlying systemic drivers remains critical to informing long-term solutions and alleviating the clinical and economic impact of drug shortages.

Drug Shortages From the Perspectives of Authorities and Pharmacy Practice in the Netherlands: An Observational Study

Background: Drug shortages are a potential threat to public health. Reliable data on drug shortages is limited. The objective was to examine the extent and nature of potential drug shortages signaled by authorities and pharmacy practice in the Netherlands

Materials and Methods: The primary working systems of Dutch authorities (Medicines Evaluation Board and Health and Youth Care Inspectorate) and the archives of pharmacy practice (Royal Dutch Pharmacists Association) from 2012 to 2015 were searched for number, characteristics, overlap, and date of signals on potential drug shortages. Also, the product characteristics of the potential drug shortages were analyzed from the two different sources

Results: Authorities detected 2.6 times more signals on potential shortages than pharmacy practice. Only 438 (8%) out of 5,731 potential drug shortages were detected by both authorities and pharmacy practice. Signals were detected later by authorities than by pharmacy practice, especially on potential permanent shortages (median difference −180 days (IQR: −4 to −405 days)). Authorities detected by majority (72%) signals related to permanent shortages with relative overrepresentation of rectal products and anti-infectives for systemic use. In contrast, pharmacy practice detected by majority (71%) signals related to temporary shortages with relative overrepresentation of ocular and cutaneous products, anti-infectives for systemic use, products for sensory organs and dermatologicals.

Conclusions: Authorities and pharmacy practice detected different signals on potential drug shortages with little overlap. Combining data from both authorities and pharmacy practice seems to be necessary in order to gain a more complete overview and maximum insight in potential drug shortages at a national level. Moreover, the finding that authorities were informed later than pharmacy practice causes concerns in terms of opportunities for authorities to assist pharmacy practice to find solutions for shortages.

Impact of a Metoprolol Extended Release Shortage on Post-Myocardial Infarction β-Blocker Utilization, Adherence, and Rehospitalization

Background:

Shortages of chronic medications are an increasingly common problem, yet little is known about their impact on drug utilization and clinical outcomes. We evaluated the population-level impact of metoprolol extended release shortage that occurred in the United States in 2009 to 2010.

Methods and Results:

We conducted a population-based, time series analysis of 38 914 patients (mean age, 60 years; 69% men) discharged after hospitalization for myocardial infarction (MI) between January 2006 and November 2012 in a large commercial insurance database. The shortage period was defined as February 2009 to June 2010. Data before September 2008 was defined as preshortage period and data after June 2010 as postshortage period. Outcomes were proportion of patients who filled any long- or short-acting β-blocker within 30 days of discharge, adherence to β-blockers within the first year of therapy among patients who initiated β-blockers, and rates of 1-year rehospitalization for MI or unstable angina. Post-MI statin utilization and adherence were evaluated as control outcomes. During the preshortage period, 70% of patient filled a β-blocker, mean monthly adherence was 76%, and the average monthly rate of rehospitalization was 6.5 events per 100 person-years, as compared with β-blocker use of 62%, average adherence of 70%, and rehospitalization rate of 5.6 events per 100 person-years during the shortage. After accounting for the baseline (preshortage) trends, the shortage was associated with significant monthly reductions in postdischarge β-blocker use (−0.57% of patients [95% CI, −0.90 to −0.24] per month) and an immediate decrease in adherence (−4.58% days covered [95% CI, −6.12 to −3.04]). No negative impact on rates of rehospitalization, post-MI statin utilization, or statin adherence was observed. β-Blocker utilization began to increase after the resolution of the shortage.

Conclusions:

The nationwide metoprolol extended release shortage in the United States was associated with fewer patients receiving any long- or short-acting β-blocker post-MI and lower adherence to β-blocker therapy for those who did receive it, but did not appear to appreciably affect clinical outcomes at the population level.

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.

Controlling postoperative use of i.v. acetaminophen at an academic medical center

PURPOSE

Results of an interprofessional formulary initiative to decrease postoperative prescribing of i.v. acetaminophen are reported.

SUMMARY

After a medical center added i.v. acetaminophen to its formulary, increased prescribing of the i.v. formulation and a 3-fold price increase resulted in monthly spending of more than $40,000, prompting an organizationwide effort to curtail that cost while maintaining effective pain management. The surgery, anesthesia, and pharmacy departments applied the Institute for Healthcare Improvement's Model for Improvement to implement (1) pharmacist-led enforcement of prescribing restrictions, (2) retrospective evaluation of i.v. acetaminophen's impact on rates of opioid-related adverse effects, (3) restriction of prescribing of the drug to 1 postoperative dose on select patient care services, and (4) guideline-driven pain management according to an enhanced recovery after surgery (ERAS) protocol. Monitored metrics included the monthly i.v. acetaminophen prescribing rate, the proportion of i.v. acetaminophen orders requiring pharmacist intervention to enforce prescribing restrictions, and prescribing rates for select adjunctive analgesics. Within a year of project implementation, the mean monthly i.v. acetaminophen prescribing rate decreased by 83% from baseline to about 6 doses per 100 patient-days, with a decline in the monthly drug cost to about $4,000. Documented pharmacist interventions increased 2.7-fold, and use of oral acetaminophen, ketorolac, and gabapentin in ERAS areas increased by 18% overall.

CONCLUSION

An interprofessional initiative at a large medical center reduced postoperative use of i.v. acetaminophen by more than 80% and yielded over $400,000 in annual cost savings.

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.

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.