Gastrointestinal adverse effects associated with the use of intravenous oliceridine compared with intravenous hydromorphone or fentanyl in acute pain management utilizing adjusted indirect treatment comparison methods

Background: In the absence of head-to-head comparative data from randomized controlled trials, indirect treatment comparisons (ITCs) may be used to compare the relative effects of treatments versus a common comparator (either placebo or active treatment). For acute pain management, the effects of oliceridine have been compared in clinical trials to morphine but not to fentanyl or hydromorphone. Aim: To assess the comparative safety (specifically differences in the incidence of nausea, vomiting and opioid-induced respiratory depression [OIRD]) between oliceridine and relevant comparators (fentanyl and hydromorphone) through ITC analysis. Methods: A systematic literature review identified randomized clinical trials with oliceridine versus morphine and morphine versus fentanyl or hydromorphone. The ITC utilized the common active comparator, morphine, for the analysis. Results: A total of six randomized controlled trials (oliceridine - 2; hydromorphone - 3; fentanyl - 1) were identified for data to be used in the ITC analyses. The oliceridine data were reported in two studies (plastic surgery and orthopedic surgery) and were also reported in a pooled analysis. The ITC focused on nausea and vomiting due to limited data for OIRD. When oliceridine was compared with hydromorphone in the ITC analysis, oliceridine significantly reduced the incidence of nausea and/or vomiting requiring antiemetics compared with hydromorphone (both orthopedic surgery and pooled data), while results in plastic surgery were not statistically significant. When oliceridine was compared with hydromorphone utilizing data from Hong, the ITC only showed a trend toward reduced risk of nausea and vomiting with oliceridine that was not statistically significant across all three comparisons (orthopedic surgery, plastic surgery and combined). An ITC comparing oliceridine with a study of fentanyl utilizing the oliceridine orthopedic surgery data and combined orthopedic and plastic surgery data showed a trend toward reduced risk that was not statistically significant. Conclusion: In ITC analyses, oliceridine significantly reduced the incidence of nausea and/or vomiting or the need for antiemetics in orthopedic surgery compared with hydromorphone and a non-significant trend toward reduced risk versus fentanyl.

The Association of Retinal Disease with Vision Impairment and Functional Status in Medicare Patients

Background: The association of neovascular age-related macular degeneration (nAMD), diabetic macular edema (DME), and retinal vein occlusion (RVO) with functional status in the general Medicare population are not well established. Objectives: This study examined patient-reported survey data linked with Medicare claims to describe the burden of these vision-threatening retinal diseases (VTRDs) among Medicare beneficiaries. Methods: Medicare Current Beneficiary Survey data linked with Medicare Fee-for-Service claims data from 2006 to 2018 were used in a nationally representative retrospective pooled cross-sectional population-based comparison study. Outcomes between community-dwelling beneficiaries with nAMD (n = 1228), DME (n = 101), or RVO (n = 251) were compared with community-dwelling beneficiaries without any VTRDs (n = 104 088), controlling for baseline demographic and clinical differences. Beneficiaries with a diagnosis of nAMD, DME, or RVO during the data year were included; those with other VTRDs were excluded. Outcomes included vision function and loss, overall functioning as assessed by difficulties with activities of daily living (ADLs) and instrumental ADLs (iADLs), anxiety/depression, falls, and fractures. Results: In patient cohorts with nAMD, DME, and RVO, approximately one-third (34.2%-38.3%) reported "a little trouble seeing" (vs 28.3% for controls), and 26%, 17%, and 9%, respectively, reported "a lot of trouble seeing/blindness" (vs 5% of controls). Difficulty walking and doing heavy housework were the most reported ADLs and iADLs, respectively. Compared with those without VTRDs, beneficiaries with nAMD had higher odds of diagnosed vision loss (odds ratio [OR], 5.39; 95% confidence interval, 4.06-7.16; P < .001) and difficulties with iADLs (odds ratio, 1.41; 95% confidence interval, 1.11-1.80; P = .005); no differences were observed for DME or RVO vs control. After adjusting for age, sex, race/ethnicity, poverty status, comorbidities, and other relevant covariates, nAMD, DME, and RVO were not significantly associated with anxiety/depression, falls, or fractures. Discussion: Patients with nAMD or DME were more likely to report severe visual impairment than those without VTRDs, although only those with nAMD were more likely to be diagnosed with vision loss. Conclusions: Patients with nAMD continue to experience more vision impairment and worse functional status compared with a similar population of Medicare beneficiaries despite availability of therapies like antivascular endothelial growth factor to treat retinal disease.

Payer perceptions on the use of patient-reported outcomes in oncology decision making

BACKGROUND: In oncology, especially with accelerated regulatory approvals and niche populations, US payers appreciate all evidence that can help support formulary decision making, including evidence beyond traditional safety and efficacy data from clinical trials. Research suggests payers incorporate patient-reported outcome (PRO) evidence in their decision making and expect the importance of PRO evidence to grow. Greater understanding on payers' use of PRO information in oncology is needed. OBJECTIVE: To assess US payer perceptions regarding the use of PRO evidence in informing oncology formulary decision making. METHODS: A multidisciplinary steering committee involving a measurement specialist, health economics and outcomes research experts, and payers developed a survey containing single-answer, multiple-answer, and free-response questions. The pilot survey was tested at a mini-advisory board with 5 US payers and revised based on feedback. In February 2020, the survey was distributed to 221 US payers through the AMCP Market Insights program and 10 additional payer panelists who were invited to discuss and contextualize the survey results. Results were presented primarily as frequencies of responses and evaluated by plan size, type of health plan, and geography (regional vs national). Differences in categorical data responses were compared using Pearson chi-square or Fisher exact tests. Two-tailed values are reported and a P value less than or equal to 0.05 was used to indicate statistical significance. RESULTS: Overall, 106 of 231 payers (45.9%) completed the survey; 45.5% represented small plans (< 1 million lives), and 54.5% represented large plans (≥ 1 million lives). Respondents were largely pharmacists (89.9%), with 55.6% of all respondents indicating their job was pharmacy administrator. The majority of payers (60.0% of small health plans and 57.8% of large plans) felt PRO evidence from clinical trials is useful. Similarly, the majority of payers (57.8% of small plans and 51.9% of large plans) felt PRO evidence from real-world studies is useful. Almost half (47.1%) suggested formulary review would be influenced by a lack of PRO evidence from oncology clinical trials either somewhat, much, or a great deal. Most payers (78.2%) thought PRO evidence is useful for providing additional context for safety of oncology therapies. More than one-third of payers (34.3%) valued PRO evidence when comparing 2 similar therapies, and 51.5% felt PRO evidence may help in measuring value for value-based agreements. Panelists indicated PRO evidence can be useful for developing treatment pathways for addressing health-related quality of life, informing provider-patient dialogues, and defining progression-free survival length and quality. CONCLUSIONS: US payers view PRO evidence from both clinical trials and real-world studies as useful for supplementing traditional clinical trial data when making oncology formulary decisions and for refining treatment pathways and care delivery models. Manufacturers of oncology therapies should collect and consider leveraging PRO evidence from both settings when engaging with US payers. DISCLOSURES: Pfizer provided funding for this research, and employees of Pfizer contributed to the development of the survey instrument, were involved in the interpretation of the data, and contributed to the discussion and output as authors. Biskupiak, Oderda, and Brixner are managers of Millcreek Outcomes Group and were paid as consultants on this project. Burgoyne was a consultant for Pfizer on this project. Arondekar, Deal, and Niyazov are employees of Pfizer and own Pfizer stock. Qwek was an employee of Pfizer at the time of this project and owns Pfizer stock.

Payer perceptions on the use of economic models in oncology decision making

BACKGROUND: To support oncology formulary decisions, especially with accelerated regulatory approvals and niche populations, payers desire data beyond what regulators review. Economic models showing financial impact of treatments may help, but data on payers' use of economic models in oncology are limited. OBJECTIVE: To assess payer perceptions regarding use of economic models in informing oncology formulary decisions. METHODS: A multidisciplinary steering committee involving health economists and payers developed a survey containing singleanswer, multiple-answer, and free-response questions. The pilot survey was tested at a mini-advisory board with 5 US payers and revised based on feedback. In February 2020, the survey was distributed to 221 US payers through the AMCP Market Insights program and 10 additional payer panelists, who were invited to discuss survey results. Results were presented primarily as frequencies of responses and evaluated by plan size, type of health plan, and geography (regional vs national). Differences in categorical data responses were compared using Pearson chi-square or Fisher's exact tests. Two-tailed values were reported and an alpha level of 0.05 or less was used to indicate statistical significance. RESULTS: Overall, 106 of 231 payers completed the survey (45.9%); 45.5% represented small plans (< 1 million lives), and 54.5% represented large plans (≥ 1 million lives). Respondents were largely pharmacists (89.9%), and 55.6% indicated that their job was pharmacy administrator. Payers indicated moderate/most interest in cost-effectiveness models (CEMs; 85.3%) and budget impact models (BIMs; 80.4%). Overall, 51.6% of respondents claimed oncology expertise on their pharmacy and therapeutics committees. Large plans were more likely to have expertise in reviewing oncology economic models than small plans (55.6% vs 31.1%, P = 0.015). The most common reasons for not reviewing economic models included "not available at time of review" (44.1%) and "potential bias" (38.2%). Overall, 43.1% of payers conduct analyses using their own data after reviewing a manufacturer-sponsored economic model. To inform formulary decisions, 62.7% of payers use BIMs and 66.7% use CEMs sometimes, often, or always. When comparing therapies with similar safety/efficacy profiles, 68.6% of payers reported economic models as helpful a moderate amount, a lot, or a great deal. Over one-third of payers (37.3%) were willing to partner with manufacturers on economic models using their plans' data. Payers valued preapproval information, data on total cost of care, and early access to models. Concerns remained regarding model transparency and assumptions. CONCLUSIONS: Most US payers reported interest in using economic models to inform oncology formulary decision making. Opportunities exist to educate payers in assessing economic models, especially among small health plans. Ensuring model availability at launch, transparency in model assumptions, and payer-manufacturer partnership in model development may increase the utility of oncology economic models among US payers. DISCLOSURES: Pfizer provided funding for this research, and Pfizer employees led the development of the survey instrument, were involved in the analysis and interpretation of the data, and contributed to the manuscript as authors. Arondekar and Niyazov are employed by Pfizer. Biskupiak, Oderda, and Brixner are managers of Millcreek Outcomes Group and were paid as consultants on this project. Burgoyne was a consultant for Pfizer on this project.

Payer perceptions of the use of real-world evidence in oncology-based decision making

BACKGROUND: Randomized controlled trials (RCTs), the gold standard of safety and efficacy evidence, are conducted in select patients that may not mirror real-world populations. As a result, healthcare decision makers may have limited information when making formulary decisions, especially in oncology, given accelerated regulatory approvals and niche patient populations. Real-world evidence (RWE) studies may help address these knowledge gaps and help inform oncology formulary decision making. OBJECTIVE: To assess US payer perceptions regarding the use and relevance of RWE in informing oncology formulary decisionmaking. METHODS: A national survey containing single-answer, multiple-answer, and free-response questions evaluated 4 key areas: (1) the value of RWE, (2) barriers to RWE, (3) sources of RWE, and (4) use of RWE in outcomes-based contracting. The survey was distributed to 221 US payers through the Academy of Managed Care Pharmacy (AMCP) Market Insights program in February 2020. Ten additional respondents were invited to discuss the survey results. The survey results were presented primarily as frequencies of responses and were evaluated by the respondent's plan size, type, and geography (regional vs national). Differences in responses for categorical data were compared using a Pearson Chi-Square or a Fisher's Exact test. Two-tailed values are reported and a level of ≤ 0.05 was used to indicate statistical significance. RESULTS: The national survey had a 45.9% response rate, with 106 payers responding. Most were from managed care organizations (MCOs; 47.5%) and pharmacy benefit managers (PBMs; 37.4%), with 54.5% from large plans (≥ 1 million lives) and 45.5% from small plans (< 1 million lives). Respondents were largely pharmacists (89.9%), with 55.6% overall indicating their job was a pharmacy administrator. Most (84.9%) used RWE to inform formulary decisions in oncology to support comparative effectiveness in the absence of head-to-head clinical trials (4.1 on a scale of 1 = Not At All Useful to 5 = Extremely Useful) and validation of National Comprehensive Cancer Network (NCCN) recommendations (4.0). Almost half (41.5%) used RWE results to inform off-label usage decisions. Payers valued RWE pre-launch to inform formulary and contracting decisions and desired real-world comparative effectiveness data post-launch to validate coverage decisions. However, the majority of payers (54.7%) did not conduct their own real-world studies. Commonly considered RWE sources included claims data (79.2%), medical records (68.9%), prospective cohort studies (60.4%), patient registries (36.8%), and patient outcome surveys (33.0%). Barriers to conducting internal RWE studies included the lack of resources and personnel, analytic capabilities, appropriate in-house data, and perceived value in conducting analyses. Payers expressed interest in using outcomes-based contracting in oncology; few have direct experience, and operationalizing through value measurement is challenging. CONCLUSIONS: RWE providing comparative treatment data, validation of NCCN treatment recommendations, and information on off-label usage are appreciated pre launch with post launch validation. DISCLOSURES: Pfizer provided funding for this research, and employees of Pfizer led the development of the survey and contributed to the manuscript as authors. Arondekar and Niyazov are employees of Pfizer; Oderda, Biskupiak, and Brixner are managers of Millcreek Outcomes Group and were paid as consultants on this project. Burgoyne was a consultant for Pfizer on this project. Malone was paid by Millcreek Outcomes as a consultant on this project.

HTX-011 effectively reduces postoperative pain intensity and opioid use in the elderly

Aim: HTX-011 (ZYNRELEF™) is an extended-release, dual-acting local anesthetic containing bupivacaine and meloxicam. In bunionectomy and herniorrhaphy studies, HTX-011 resulted in less postoperative pain and less opioid consumption versus bupivacaine HCl. Here we evaluate HTX-011 in patients aged ≥65 years. Materials & methods: Patients received placebo, bupivacaine HCl or HTX-011 following surgery. End points included pain intensity, total opioid consumption, opioid-free patients and safety. Results: HTX-011-treated patients reported lower postoperative pain through 72 h versus bupivacaine HCl and placebo. Elderly patients administered HTX-011 used fewer opioids versus bupivacaine HCl, and a greater proportion remained opioid-free through 72 h. HTX-011 was well tolerated with a safety profile similar to bupivacaine HCl and placebo. Conclusion: HTX-011 maintained effectiveness and was well tolerated in elderly patients. Clinical Trial Registration: NCT03295721 and NCT03237481.

Budget impact of capmatinib for adults with metastatic non-small cell lung cancer harboring a MET exon 14 skipping mutation in the United States

AIMS

To estimate the budget impact of adding capmatinib, the first FDA approved MET inhibitor, to a US commercial or Medicare health plan for patients with metastatic non-small cell lung cancer (mNSCLC) whose tumors have a mutation that leads to MET exon 14 (METex14) skipping.

METHODS

Target population size was estimated using published epidemiology data. Clinical data were obtained from the GEOMETRY mono-1 capmatinib trial and published trials. Treatments in the market mix included crizotinib, pembrolizumab, ramucirumab, and chemotherapy. Uptake of capmatinib and testing rates were based on market research. All costs (drug acquisition and administration, pre-progression, progression, terminal care, adverse event, and testing) were estimated based on public sources (2020 USD).

RESULTS

The number of patients eligible for capmatinib in the first three years was estimated to be 2-3 in a hypothetical 1 million member commercial plan and 34-44 in a hypothetical 1 million member Medicare plan each year. The estimated total budget impact ranged from $9,695 to $67,725 for a commercial plan and $141,350 to $985,695 for Medicare. With capmatinib included, a marginal per member per month budget impact was estimated (commercial: $0.0008 to $0.0056; Medicare: $0.0118 to $0.0821). Capmatinib inclusion resulted in lower medical costs (commercial: -$0.0003 to -$0.0007; Medicare: -$0.0037 to -$0.0106), partially offsetting increased drug costs ($0.0011 to $0.0064; $0.0154 to $0.0928, respectively), and were primarily driven by reductions in progression and terminal care costs (-$0.0003 to -$0.0009; -$0.0037 to -$0.0125, respectively). The results were most sensitive to capmatinib market share, capmatinib price, and treatment duration.

LIMITATIONS

Certain assumptions were applied to the model to account for inputs with limited evidence.

CONCLUSIONS

The estimated budget impact of including capmatinib for mNSCLC with a METex14 skipping mutation is minimal, and the increased drug costs were partially offset by savings in AEs, and progression-related and terminal care costs.

Health Care Burden Associated with Outpatient Opioid Use Following Inpatient or Outpatient Surgery

BACKGROUND

The treatment of postsurgical pain with prescription opioids has been associated with persistent opioid use and increased health care utilization and costs.

OBJECTIVE

To compare the health care burden between opioid-naive adult patients who were prescribed opioids after a major surgery and opioidnaive adult patients who were not prescribed opioids.

METHODS

Administrative claims data from the IBM Watson Health MarketScan Research Databases for 2010-2016 were used. Opioid-naive adult patients who underwent major inpatient or outpatient surgery and who had at least 1 year of continuous enrollment before and after the index surgery date were eligible for inclusion. Cohorts were defined based on an opioid pharmacy claim between 7 days before index surgery and 1 year after index surgery (opioid use during surgery and inpatient use were not available). To ensure an opioid-naive population, patients with opioid claims between 365 and 8 days before surgery were excluded. Acute medical outcomes, opioid utilization, health care utilization, and costs were measured during the post-index period (index surgery hospitalization and day of index outpatient surgery not included). Predicted costs were estimated from multivariable log-linked gamma-generalized linear models.

RESULTS

The final sample consisted of 1,174,905 opioid-naive patients with an inpatient surgery (73% commercial, 20% Medicare, 7% Medicaid) and 2,930,216 opioid-naive patients with an outpatient surgery (74% commercial, 23% Medicare, and 3% Medicaid). Opioid use after discharge was common among all 3 payer types but was less common among Medicare patients (63% inpatient/43% outpatient) than patients with commercial (80% inpatient/75% outpatient) or Medicaid insurance (86% inpatient/81% outpatient). Across all 3 payers, opioid users were younger, were more likely to be female, and had a higher preoperative comorbidity burden than nonopioid users. In unadjusted analyses, opioid users tended to have more hospitalizations, emergency department visits, and pharmacy claims. Adjusted predicted 1-year post-period total health care costs were significantly higher (P< 0.001) for opioid users than nonopioid users for commercial insurance (inpatient: $22,209 vs. $14,439; outpatient: $13,897 vs. $8,825), Medicare (inpatient: $31,721 vs. $26,761; outpatient: $24,529 vs. $15,225), and Medicaid (inpatient: $13,512 vs. $9,204; outpatient: $11,975 vs. $8,212).

CONCLUSIONS

Filling an outpatient opioid prescription (vs. no opioid prescription) in the 1 year after inpatient or outpatient surgery was associated with increased health care utilization and costs across all payers.

DISCLOSURES

Funding for this study was provided by Heron Therapeutics, which participated in analysis and interpretation of data, drafting, reviewing, and approving the publication. All authors contributed to the development of the publication and maintained control over the final content. Brummett is a paid consultant for Heron Therapeutics and Recro Pharma and reports receipt of research funding from MDHHS (Sub K Michigan Open), NIDA (Centralized Pain Opioid Non-Responsiveness R01 DA038261-05), NIH0DHHS-US-16 PAF 07628 (R01 NR017096-05), NIH-DHHS (P50 AR070600-05 CORT), NIH-DHHS-US (K23 DA038718-04), NIH-DHHS-US-16-PAF06270 (R01 HD088712-05), NIH-DHHS-US-17-PAF02680 (R01 DA042859-05), and UM Michigan Genomics Initiative and holding a patent for peripheral perineural dexmedetomidine. Oderda is a paid consultant for Heron Therapeutics. Pawasauskas is a paid consultant to Heron Therapeutics and Mallinckrodt Pharmaceuticals. England and Evans-Shields are employees of Heron Therapeutics. Kong, Lew, Zimmerman, and Henriques are employees of IBM Watson Health, which was compensated by Heron Therapeutics for conducting this research. Portions of this work were presented as a poster at the AMCP Managed Care and Specialty Pharmacy Annual Meeting 2019; March 25-28, 2019; San Diego, CA.

Quantification of Economic Impact of Drug Wastage in Oral Oncology Medications: Comparison of 3 Methods Using Palbociclib and Ribociclib in Advanced or Metastatic Breast Cancer

BACKGROUND

Discarding unused drugs after dose changes or discontinuation can significantly affect pharmacy budgets. This is especially concerning for expensive oncology agents. However, few economic studies account for drug wastage, providing an inaccurate estimate of a drug's actual economic cost, cost-effectiveness, and value.

OBJECTIVES

To (a) compare the economic impact of drug wastage between ribociclib and palbociclib-clinically similar oral medications for metastatic breast cancer-using 3 approaches (Markov model, pharmacy acquisition cost model, and a retrospective claims analysis) and (b) compare the modeling results with a published estimate of drug wastage for palbociclib from a claims analysis.

METHODS

A Markov model and a pharmacy acquisitions cost model were developed to evaluate the economic impact of dose reductions for ribociclib and palbociclib over a 1-year time period. Data inputs were pharmacy costs (RED BOOK wholesale acquisition cost) and proportion of patients experiencing dose reductions from either ribociclib randomized clinical trials (MONALEESA-2, -3, or -7) or real-world observational data (Symphony Health retrospective claims analysis). The latter constituted the third approach for quantifying drug wastage. The economic impact of dose reductions for ribociclib and palbociclib in postmenopausal women with previously untreated HR-positive/HER2-negative advanced breast cancer was assessed. Drug wastage was defined as drug doses that could not be used by a patient following a dose reduction. The cost of drug wastage was defined as the cost associated with an unused drug resulting from a dose reduction. The predicted results from the 2 models were compared with a previously published claims analysis that estimated the effect of treatment costs and drug wastage for palbociclib based on the observed dosing patterns from the Symphony Health Solutions database.

RESULTS

In the Markov model, relative to ribociclib, palbociclib users experienced drug wastage of $112,382 total, or $1,124 per treated patient, per year due to dose changes. In the pharmacy acquisition cost model, relative to ribociclib, palbociclib usage was associated with an increased cost of $7,196 per patient per year (based on a mid-cycle dose reduction) comprising dosing-based cost differences and drug wastage cost for palbociclib of $3,727. The previously published claims analysis found that palbociclib users experiencing a dose reduction had drug wastage costs of $5,471 per patient.

CONCLUSIONS

In both models, dose reductions for ribociclib patients resulted in no wastage, since unused tablets could be administered in subsequent cycles, while dose reductions for palbociclib resulted in drug wastage and increased costs. The results from both models were consistent with previously published results from the claims analysis, demonstrating drug wastage costs for palbociclib.

DISCLOSURES

This study received financial support from Novartis Pharmaceuticals, which has products approved for treatment of breast cancer. Tang was employed by Novartis during this study; Zacker and Dalal are employed by Novartis and own company stock. Biskupiak, Brixner, and Oderda received payment from Novartis for this study. Brixner serves as a consultant for Millcreek Outcomes Group and also declares consulting fees from Abbvie, AstraZeneca, Abbott, Becton Dickinson, and Xcenda, unrelated to this study.

The Challenge of Variable Costs in Decisions Based on Cost-Effectiveness Evidence: A Case Study for Brodalumab

BACKGROUND

Payers often consider cost-effectiveness studies for new drugs when making decisions on coverage, formulary position, and budgets; however, cost-effectiveness studies are often calculated using estimated pricing before a drug's launch. If the drug's price changes on or after launch, or if rebate programs are initiated, cost-effectiveness studies need to be updated to prevent payers from making decisions using inaccurate value assumptions, which can lead to unexpected financial impacts and potentially delay patient access to drugs.

OBJECTIVE

To evaluate how lower at-launch drug pricing versus initial estimated pricing affects cost-effectiveness ratios and potentially influences treatment decisions, using the case study of brodalumab, a biologic drug indicated for the treatment of moderate-to-severe plaque psoriasis.

METHODS

We compared the estimated cost-effectiveness of brodalumab, which was published in a December 2016 Institute for Clinical and Economic Review (ICER) report based on estimated pricing, with the drug's cost-effectiveness based on its actual pricing after its approval.

DISCUSSION

The 2016 ICER report on the cost-effectiveness of targeted immunomodulators indicated for the treatment of moderate-to-severe plaque psoriasis, brodalumab's price was estimated to be $4267 by averaging the cost of its likely competitors. Brodalumab's effectiveness as a treatment for moderate-to-severe plaque psoriasis is high in clinical trials, but its estimated cost placed it as the fourth most cost-effective targeted immunomodulatory drug in the ICER report. On its approval in February 2017, brodalumab's newly estimated base price was $3900, based on its prelaunch price. Calculations using this base price placed brodalumab as the most cost-effective option among targeted immunomodulators in this setting. At the time this current article was written, brodalumab's cost was $3500, making it even more cost-effective.

CONCLUSION

Because payers, providers, and patients are all concerned with achieving better outcomes for the often painful and disfiguring disease of plaque psoriasis, while controlling costs, updating cost-effectiveness data when new pricing information becomes available may reveal significant cost differences to help stakeholders make better decisions about their population's healthcare outcomes and costs.

Preapproval Information Exchange: Perspectives of U.S. Population Health Decision Makers on Preferences for Early Engagement with Investigational Therapies

BACKGROUND

Preapproval information exchange (PIE) is the communication of clinical and health care economic information (HCEI) on therapies in development between U.S. population health decision makers (PHDMs) and drug manufacturers before regulatory approval. Early access to HCEI can help PHDMs plan budgets, inform formulary coverage decisions, and accelerate policy development to improve patient access to innovative health technologies. While recent FDA guidelines and proposed legislation aim to clarify definitions and execution of PIE, the level of U.S. PHDMs' awareness and preferences for early engagement with investigational therapies is unclear.

OBJECTIVES

To (a) assess U.S. PHDMs' current knowledge and perceptions of PIE and (b) identify their preferences for PIE, in order to shape future development of related guidelines and policy.

METHODS

An expert panel of 5 U.S. PHDMs representing national and regional payers from integrated health plans, pharmacy benefit management, and specialty pharmacy organizations participated in a 2-round modified Delphi process. A targeted literature review of PIE was used to develop a web-based survey administered to the panel. Survey responses were grouped by consensus, with ≥ 80% agreement or disagreement as the threshold in round 1. In round 2, content experts moderated an inperson meeting where panelists deliberated and then revoted on round 1 nonconsensus topics.

RESULTS

In the round 1 survey, the panelists reached consensus on 35 of 54 (65%) multiple-choice questions. In the round 2 face-to-face discussion, 19 nonconsensus questions were debated. One question was removed due to duplication, and consensus was achieved on 16 additional questions, with 2 items of nonconsensus remaining. Overall, consensus was achieved on 51 of 53 topics (96%). There was full consensus by the panelists that PIE should encompass new molecular entities and new indications of marketed therapies. Panelists completely agreed on the need for a legislative "safe harbor" for PIE. Four of five panelists reported that the value of PIE was high to PHDMs, and they expressed a strong preference for peer-to-peer conversations with manufacturers' medical or outcomes liaisons for PIE. The main topic of nonconsensus was the optimal timing of PIE.

CONCLUSIONS

This panel of U.S. PHDMs achieved consensus on the value of PIE to proactively budget, make informed formulary decisions, and develop pharmaceutical policy to facilitate patient access to new therapies. The PHDM panel's preferences for PIE should be considered in legislative discussions and planning for future PIE by PHDMs and manufacturers. The full contribution of PIE to improving the U.S. health system can best be realized under a safe harbor that allows U.S. PHDM and manufacturer experts to engage in robust scientific and economic discourse. Additional research and broad stakeholder engagement is needed to advance the development of formal U.S. PIE guidelines.

DISCLOSURES

This study was funded by GlaxoSmithKline (GSK). Brixner, Oderda, and Biskupiak are principals of Millcreek Outcomes Group, a consultancy that received funding from GSK to conduct this study. Marciniak and Woodward are employees of GSK and own stock in GSK. Seifter was employed by GSK at the time of this study. Neumann served as external health policy advisor for this study and has consulted or served on advisory boards with Merck, Bayer, Pacira, Novo Nordisk, Amgen, Abbvie, Boston Health Economics, Vertex, Precision Health Economics, the Congressional Budget Office, CEA Registry Sponsors, Axovant, Veritech, Janssen, Parateck, Avexis, GSK, Celegene, Bluebird, Roche, Sage, Sarepta, Biogen, and Ipsen. Neumann also reports grants from Amgen, Lundbeck, Gates, NPC, Alzheimer's Association, and NIH.

Budget impact of including ribociclib in combination with letrozole on US payer formulary: first-line treatment of post-menopausal women with HR+/HER2- advanced or metastatic breast cancer

OBJECTIVES

The combination of a cyclin-dependent kinase 4 and 6 (CDK 4/6) inhibitor with the aromatase inhibitor letrozole is a safe and effective alternative to letrozole monotherapy for first-line hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2-) breast cancer. This study evaluates the budget impact of using the CDK 4/6 inhibitor ribociclib plus letrozole as a first-line treatment option for postmenopausal women with HR+/HER2- advanced breast cancer, from a United States (US) payer perspective.

METHODS

A cohort-based budget impact model was used to calculate the incremental cost of introducing ribociclib plus letrozole over three years for the target population. The analysis compared two scenarios: treatment options excluding or including ribociclib plus letrozole. Market shares were derived from market research and the assumption was the introduction of ribociclib plus letrozole would only displace existing CDK-based therapies. Treatment duration was based on the median time to treatment discontinuation or median progression-free survival for first-line treatment, and on clinical trial data for second- and third-line treatment. Acquisition costs were based on wholesale acquisition costs and considered co-payment. Costs for drug administration and monitoring, subsequent therapy, and relevant adverse events were included.

RESULTS

Of 1 million insured members, 263 were eligible for CDK 4/6 inhibitor treatment. Cumulative total savings with ribociclib plus letrozole were $3.01M over three years, corresponding to a cumulative incremental cost saving of $318.11 per member treated per month.

CONCLUSIONS

In the US, ribociclib plus letrozole represents a cost-saving first-line treatment option for postmenopausal women with HR+/HER2- advanced breast cancer.

Benzodiazepines, Health Care Utilization, and Suicidal Behavior in Veterans With Posttraumatic Stress Disorder

OBJECTIVE

To evaluate the relationships between benzodiazepine use and (1) health care utilization and (2) suicide risk in veterans diagnosed with posttraumatic stress disorder (PTSD).

METHODS

This propensity-matched retrospective cohort study included veterans diagnosed with 1 ICD-9 code for PTSD who were active users of the Veterans Affairs health care system between January 1, 2001, and December 31, 2014. Exposure included at least 1 thirty-day prescription of a benzodiazepine within 1 year following PTSD diagnosis among patients with no recent history of benzodiazepine use. The primary outcomes were health care utilization and suicidal behavior.

RESULTS

A total of 242,493 of 1,134,201 eligible veterans were included in the propensity-matched cohort, 80,831 (7.13%) of whom were prescribed benzodiazepines. Veterans with PTSD who received benzodiazepines had significantly more hospitalizations (incident rate ratio [IRR] = 1.27; 95% CI, 1.10-1.47) and emergency department (IRR = 1.16; 95% CI, 1.13-1.20), general outpatient (IRR = 1.19; 95% CI, 1.16-1.21), outpatient mental health (IRR = 1.49; 95% CI, 1.41-1.57), and total mental health (IRR = 1.37; 95% CI, 1.34-1.40) visits. Benzodiazepine users had a significantly greater risk of death due to suicide (hazard ratio [HR] = 2.74; 95% CI, 2.40-3.13) and were significantly more likely to have medically documented suicide attempts (HR = 1.85; 95% CI, 1.65-2.08) and suicidal ideation (HR = 1.57; 95% CI, 1.48-1.67).

CONCLUSIONS

Benzodiazepine users had higher rates of health care utilization and were more likely to attempt and complete suicide than patients without benzodiazepine exposure. This study strengthens the empirical evidence against the use of benzodiazepines in veterans with PTSD. Prescribers should weigh the benefits and risks-especially the almost 3-fold increase in suicide risk-when prescribing benzodiazepines in these patients.

Cost-Effectiveness of Ribociclib plus Letrozole Versus Palbociclib plus Letrozole and Letrozole Monotherapy in the First-Line Treatment of Postmenopausal Women with HR+/HER2- Advanced or Metastatic Breast Cancer: A U.S. Payer Perspective

BACKGROUND

U.S. regulatory approvals of the cyclin-dependent kinase 4 and 6 (CDK 4/6) inhibitors ribociclib and palbociclib as add-ons to letrozole greatly enhance the prospects for treating postmenopausal women with hormone receptor-positive (HR+)/human epidermal receptor 2-negative (HER2-) advanced or metastatic breast cancer. Clinical trials have established that the combination of a CDK 4/6 inhibitor with letrozole can significantly improve progression-free survival (PFS) versus letrozole monotherapy and is safe and well tolerated. Cost-effectiveness studies are required to inform payers and clinical decision makers on the money value of combination treatment in clinical practice.

OBJECTIVE

To evaluate the cost-effectiveness of ribociclib plus letrozole versus palbociclib plus letrozole and versus letrozole monotherapy in the first-line treatment of postmenopausal women with HR+/HER2- advanced or metastatic breast cancer from a U.S. private third-party payer perspective.

METHODS

A partitioned survival model including 3 health states (progression free, with either overall response or stable disease; progressed disease; and death) simulated lifetime costs and outcomes over a 40-year lifetime horizon with a 1-month cycle length. Clinical efficacy data (PFS and overall survival [OS]) were derived from a phase III trial of ribociclib plus letrozole (MONALEESA-2; NCT01958021), a phase II trial of palbociclib plus letrozole (PALOMA-1; NCT00721409), and a Bayesian network meta-analysis. Health care costs included drug acquisition and monitoring, disease management, subsequent therapies, and serious drug-related adverse events. Effectiveness was measured in life-years, derived from survival projections, and in quality-adjusted life-years (QALYs), calculated from time spent in each state combined with health-state utility values. A one-way deterministic sensitivity analysis explored the impact of uncertainty in key model parameters on results, and probabilistic uncertainty was assessed through a Monte Carlo probabilistic sensitivity analysis.

RESULTS

Ribociclib plus letrozole was dominant versus palbociclib plus letrozole, with a cost saving of $43,037 and a gain of 0.086 QALYs. Compared with letrozole monotherapy, ribociclib plus letrozole was associated with an incremental cost of $144,915 and an incremental QALY of 0.689, equating to an incremental cost-effectiveness ratio of $210,369 per QALY. Key model drivers included OS HRs for palbociclib plus letrozole versus letrozole and for ribociclib plus letrozole versus letrozole, the PFS HR for palbociclib plus letrozole versus letrozole, PD health-state costs, utility of response, and cost discount rate. The probabilities that ribociclib plus letrozole was cost-effective versus letrozole at thresholds of $50,000, $100,000 and $200,000 per QALY gained were 1.6%, 6.3%, and 50.5%, respectively.

CONCLUSIONS

In the United States, ribociclib plus letrozole is a cost-effective alternative to palbociclib plus letrozole for the first-line treatment of postmenopausal women with HR+/HER2- advanced or metastatic breast cancer. Ribociclib plus letrozole is also cost-effective versus letrozole monotherapy at willingness-to-pay thresholds greater than $198,000 per QALY (for probabilistic analysis).

DISCLOSURES

Funding for this study was provided by Novartis, which manufactures ribociclib and provided input on the study design and data collection, analysis, and interpretation. Mistry, May, Suri, and Young are employees of PAREXEL. Tang, Mishra, D. Bhattacharyya, and Dalal are employees of Novartis. S. Bhattacharyya was an employee of Novartis during the study period. Tang and Dalal hold stock in Novartis. Brixner, Oderda, and Biskupiak were paid by Millcreek Outcomes Group as consultants for work on this project. Brixner has also consulted for AstraZeneca, UCB, Regeneron, and Abbott.

[Diagnosis and treatment of Helicobacter pylori infection in pediatrics: recommendation for 2014 clinical practice]

Helicobacter pylori (H. pylori) infection is a large worldwide infection usually acquired during childhood, whose prevalence in pediatric population varies, with lower incidence rates in developed countries compared to developing countries (up to 10-15% and 70%, respectively). Diagnosis can be performed both with endoscopic-based methods and noninvasive diagnostic tests, such as urea breath test and fecal antigen. Current guidelines recommend endoscopic evaluation of the young patients, in order to determine the underlying cause of abdominal pain. Even in case of suspected functional pain, patient should not be investigated for infection, unless upper endoscopy is performed to rule out organic causes. Nowadays, in pediatric population, applications of noninvasive tests are limited to verifying eradication after therapy and to investigating the presence of infection in asymptomatic patients with first-degree relatives affected by gastric cancer. Since correlation between abdominal pain and H. pylori gastritis, in absence of peptic ulcer disease is still debated, "test and treat" strategy is not recommended in children. As for adults, treatment regimens are based on the combination of proton-pump inhibitor and two or more antibiotics, for 7-14 days, depending on resistance rates of geographic areas.

Challenges in the management of acute postsurgical pain

The majority of patients who undergo surgery will require drug therapy for the management of acute postsurgical pain. Effective control of acute postsurgical pain is essential for the patient not only in the short term but also in the long term to prevent the development of chronic pain, which can occur if early acute pain is prolonged. Currently, opioid analgesics are widely used for the management of acute postsurgical pain. Although opioids provide effective postsurgical pain relief, their use is associated with a number of risks, including the development of opioid-related adverse drug events (ORADEs). This review investigates the prevalence of opioid use in the postsurgical setting, the incidence of ORADEs, and the impact of these ORADEs on patient outcomes, length of stay, and costs after common surgeries. According to a national analysis of ORADE incidence, almost 20% of patients treated with opioids experienced an ORADE, with the most common being gastrointestinal effects, central nervous system effects, pruritus, or urinary retention. Studies show that the risk of developing an ORADE is higher in patients receiving higher doses of opioids and in patients undergoing orthopedic or gynecologic surgery compared with patients undergoing general surgery. Elderly patients and those with comorbidities (e.g., obesity, sleep apnea, respiratory disease, urinary disorders) may be particularly vulnerable to ORADE development. Both hospital costs and length of stay are increased in patients with an ORADE versus those without an ORADE. Strategies to reduce the use of opioids after surgery are likely to result in positive outcomes by reducing the incidence of ORADEs and, as a result, reducing treatment costs associated with surgery and improving patient care.

Current and Future Use of HEOR Data in Healthcare Decision-Making in the United States and in Emerging Markets

BACKGROUND

Health economics and outcomes research (HEOR) is a growing field that provides important information for making healthcare coverage and access decisions. However, there is no standard process for incorporating HEOR into the decision-making process, and the current use of HEOR by healthcare payers remains unknown.

OBJECTIVES

To examine how HEOR data are being used by healthcare payers, including managed care organizations today, and how the use of such data is expected to change in the future in relation to access and reimbursement decision-making.

METHODS

The Managed Care Survey (MCS) and the Pharmacy & Therapeutics (P&T) Committee Survey (PTS) were distributed to decision makers in the United States. A total of 72 managed care decision makers responded to the MCS and 30 P&T Committee members responded to the PTS from US healthcare organizations that cover from tens of thousands to millions of lives. The goal of these surveys was to understand the current use of HEOR data, perceived barriers and limitations in the use of HEOR, and the expectations for future use, and how these and other factors affect formulary decisions. An international perspective was gained by modifying the MCS based on feedback received at a European conference, and a pilot version was given to individuals in emerging markets across Asia, Latin America, and the Middle East and Africa.

RESULTS

The majority of US respondents to the MCS (74%; N = 53) and to the PTS (77%; N = 23) indicate that HEOR is currently being used in their decision-making process; but the majority of respondents to the MCS (66%; N = 48) also state that quality assessment is limited (quality assessment was not addressed in the PTS). In addition, the majority of respondents to the MCS (82%; N = 59) expect the use of HEOR to increase in the future. Safety and efficacy were reported in the PTS to be the most important factors in the P&T Committee decision-making process, followed by head-to-head comparisons, and cost. The current use of HEOR in Asia, Latin America, and the Middle East and Africa varied widely across respondents.

CONCLUSION

This study provides an important benchmark of HEOR use in the United States before the implementation of healthcare reform. Between the years 2010 and 2011, HEOR data were used to varying extents across global regions, but their use in the future is likely to increase in relation to access and reimbursement decisions.

Bringing liraglutide to market: a CER case study

BACKGROUND

Faced with competition from other drugs and therapies, drug manufacturers may be able to use comparative effectiveness research (CER) to help reduce barriers to a new drug's adoption and integration into formularies. But few examples exist to show how CER can be used effectively and whether the data can make a difference.

OBJECTIVES

To examine how CER can help strengthen a new drug's entry into the market and integration into formularies, and how ongoing CER might be valuable as a drug is implemented in the real world.

SUMMARY

A roundtable of 9 representatives from health plans, including formulary decision makers, evaluated how CER in phase 3 development of a new drug can add to the drug's strength of evidence, helping decision makers understand how and where to integrate that drug into a formulary. The round table participants viewed, as a case study, the development of liraglutide, a glucagon-like peptide-1 (GLP-1) receptor agonist for adults with type 2 diabetes that was approved by the FDA in January 2010. With this drug, CER was incorporated into an extensive type 2 diabetes clinical development program, comparing how the drug worked in comparison with other established therapies. Although there are many antidiabetic drugs available for use, patients with type 2 diabetes often need additional agents. The FDA approved liraglutide with the conclusion that benefits of the drug outweighed potential risks but noted the association with pancreatitis in humans and animal data that showed rare medullary thyroid cancer associated with liraglutide. Roundtable participants agreed that while pre-launch CER can be valuable, ongoing real-world research is also important for confirming expected results, identifying additional uses and indications and managing risks. The participants also suggested opportunities for additional CER studies and made recommendations for manufacturers.

CONCLUSIONS

Roundtable thought leaders agreed that well-planned trial designs incorporating CER result in high-quality evidence that may provide sufficient data to support adoption of a new therapy onto the formulary. When more real-world data become available and confirm the phase 3 clinical trial results, decision makers may be able to use the results to change the drug's position and either lessen or extend its use.

Interleukin-10 and transforming growth factor-beta1 in cord blood: relationship with paternal allergy and cesarean section

AIM

To measure Interleukin-10 (IL-10) and transforming growth factor-beta1 (TGF-beta1) in cord blood and assess their relationship with parental allergy and perinatal characteristics.

METHODS

In a neonatal care unit 212 consecutive full-term and appropriate for gestational age newborns were recruited. IL-10 and TGF-beta1 levels were determined in cord blood by high sensitivity ELISA. Perinatal characteristics, mode of delivery and presence of allergy in parents were recorded.

RESULTS

Out of 212 newborns, 136 were of non-allergic parents and 76 (35.8%) of one or both allergic parents. In newborns of allergic fathers median IL-10 levels tended to be lower (0.67 vs. 1.06 pg/mL, p = 0.07) and TGF-beta1 levels were significantly lower (40.9 vs. 45.3 ng/mL, p = 0.008) than in newborns of non-allergic parents. Multiple general regression analysis showed that presence of paternal allergy (beta=-0.19, p = 0.003) to be born by cesarean section (beta=-0.21, p = 0.03) and younger gestational age (beta= 0.14, p = 0.04) independently contributed to decrease TGF-beta1 levels (multiple R = 0.38, p < 0.0001).

CONCLUSION

Paternal allergy and cesarean section are associated to decreased TGF-beta1, which might be the mediator of the increased risk of atopy development. Cord blood IL-10 and TGF-beta1 levels of our newborn series could be used as reference values for further studies on these relationships.

Systematic review on quality control for drug management programs: is quality reported in the literature?

BACKGROUND

Maintaining quality of care while managing limited healthcare resources is an ongoing challenge in healthcare. The objective of this study was to evaluate how the impact of drug management programs is reported in the literature and to identify potentially existing quality standards.

METHODS

This analysis relates to the published research on the impact of drug management on economic, clinical, or humanistic outcomes in managed care, indemnity insurance, VA, or Medicaid in the USA published between 1996 and 2007. Included articles were systematically analyzed for study objective, study endpoints, and drug management type. They were further categorized by drug management tool, primary objective, and study endpoints.

RESULTS

None of the 76 included publications assessed the overall quality of drug management tools. The impact of 9 different drug management tools used alone or in combination was studied in pharmacy claims, medical claims, electronic medical records or survey data from either patient, plan or provider perspective using an average of 2.1 of 11 possible endpoints. A total of 68% of the studies reported the impact on plan focused endpoints, while the clinical, the patient or the provider perspective were studied to a much lower degree (45%, 42% and 12% of the studies). Health outcomes were only accounted for in 9.2% of the studies.

CONCLUSION

Comprehensive assessment of quality considering plan, patient and clinical outcomes is not yet applied. There is no defined quality standard. Benchmarks including health outcomes should be determined and used to improve the overall clinical and economic effectiveness of drug management programs.

Inflammatory bowel disease in children and adolescents in Italy: data from the pediatric national IBD register (1996-2003)

BACKGROUND

The purpose was to assess in Italy the clinical features at diagnosis of inflammatory bowel disease (IBD) in children.

METHODS

In 1996 an IBD register of disease onset was established on a national scale.

RESULTS

Up to the end of 2003, 1576 cases of pediatric IBD were recorded: 810 (52%) ulcerative colitis (UC), 635 (40%) Crohn's disease (CD), and 131 (8%) indeterminate colitis (IC). In the period 1996-2003 an increase of IBD incidence from 0.89 to 1.39/10(5) inhabitants aged <18 years was observed. IBD was more frequent among children aged between 6 and 12 years (57%) but 20% of patients had onset of the disease under 6 years of age; 28 patients were <1 year of age. Overall, 11% had 1 or more family members with IBD. The mean interval between onset of symptoms and diagnosis was higher in CD (10.1 months) and IC (9 months) versus UC (5.8 months). Extended colitis was the most frequent form in UC and ileocolic involvement the most frequent in CD. Upper intestinal tract involvement was present in 11% of CD patients. IC locations were similar to those of UC. Bloody diarrhea and abdominal pain were the most frequent symptoms in UC and IC, and abdominal pain and diarrhea in CD. Extraintestinal symptoms were more frequent in CD than in UC.

CONCLUSIONS

The IBD incidence in children and adolescents in Italy shows an increasing trend for all 3 pathologies. UC diagnoses exceeded CD.

How expensive is antipsychotic polypharmacy? Experience from five US state Medicaid programs

OBJECTIVE

To characterize healthcare costs associated with antipsychotic polypharmacy and to investigate predictors of high-cost patients.

METHODS

A retrospective cohort study using Medicaid claims data from California, Nebraska, Oregon, Utah, and Wyoming evaluated 55 383 fee-for-service patients with antipsychotic prescriptions between 1998 and 2002. Polypharmacy was defined as initiating multiple antipsychotic drugs or concomitant antipsychotic therapy (>or=60 days). Healthcare costs (drug and non-drug) were summed for 365 days following index antipsychotic claim. Adjusted mean costs were compared to antipsychotic monotherapy. Logistic regression was performed to identify predictors of high-cost patients (top quintile) with regard to patient age, gender, race/ethnicity, mental disorders, hospitalization, index antipsychotic, concomitant psychotropic drugs, and polypharmacy.

RESULTS

The average annual prevalence of antipsychotic polypharmacy was 6%. 70-80% of total healthcare expenditures for polypharmacy patients were drug-related. Polypharmacy was associated with significantly higher drug expenditures ($1716-2079) in the year following drug initiation than monotherapy even after adjusting for case mix and index antipsychotic (p < 0.05). Differences in non-drug expenditures versus monotherapy were smaller and varied by state ranging from a $77 increase in California (p < 0.001) to a $211 savings in Utah (p = 0.02). In California, polypharmacy alone (OR = 2.69; 95% CI: 2.30-3.16) or in combination with concomitant psychotropics (OR = 6.26; 95% CI: 5.51-7.11) was associated with greater likelihood of being a high-cost patient than monotherapy.

CONCLUSIONS

Cost savings from limiting antipsychotic polypharmacy could be significant. Caution must be taken in ensuring reductions in polypharmacy do not lead to unintended consequences or shift care to more costly alternatives. Study limitations, including the known shortcomings of claims data and differences across state Medicaid programs, should be considered when interpreting the results of this or any multi-state study.

Prevalence, utilization patterns, and predictors of antipsychotic polypharmacy: experience in a multistate Medicaid population, 1998-2003

OBJECTIVES

This study was conducted to estimate the prevalence of antipsychotic polypharmacy among fee-for service state Medicaid beneficiaries initiating antipsychotic drug therapy and to investigate psychiatric and demographic predictors of such polypharmacy.

METHODS

This was a retrospective cohort study employing Medicaid claims data from California, Nebraska, Oregon, Utah, and Wyoming for patients who filled >1 antipsychotic prescription between 1998 and 2003 and who were continuously eligible for benefits from 180 days before to 1 year after the index antipsychotic claim. Antipsychotic Polypharmacy was defined as initiation of multiple antipsychotic medications or at least 60 consecutive days of concomitant antipsychotic medication overlapping the index antipsychotic prescription at any time during the 365 days after the index drug claim. Primary and secondary diagnosis codes (International Classification of Diseases, Ninth Revision, Clinical Modification) were used to identify patients with mental disorders and mental health-related hospitalizations. Multivariate logistic regression, with adjustment for sex, age, race/ethnicity, state, mental health diagnoses, hospitalization, year, and type of index antipsychotic, was performed to identify predictors of polypharmacy. A multivariate Cox proportional hazards model was used to compare the cumulative incidence of polypharmacy by index antipsychotic drug.

RESULTS

The study cohort consisted of 55,481 individuals with > or =1 prescription claim for an antipsychotic drug. The mean prevalence of long-term antipsychotic polypharmacy in the year after initiating antipsychotic medication was 6.4%. Approximately half of those with polypharmacy were started on multiple antipsychotic drugs and half were started on monotherapy but received > or =2 antipsychotic drugs concomitantly in the year after drug initiation. Among the stronger predictors of polypharmacy were a diagnosis of schizophrenia (odds ratio [OR] = 2.95; 95% Cl, 2.43-3.58), recent mental health hospitalization (OR = 1.17; 95% Cl, 1.02-1.33), and the number of mental health diagnoses (OR = 1.07 per diagnosis; 95% CI, 1.06-1.08). Polypharmacy was more likely among male than female patients (OR = 1.26; 95% Cl, 114-1.39) and among those between the ages of 18 and 24 years. The cumulative incidence of polypharmacy was greater among patients initiating clozapine compared with those initiating other antipsychotics (P < 0.001).

CONCLUSIONS

In these fee-for-service Medicaid beneficiaries from 5 states, the prevalence of chronic antipsychotic polypharmacy was low in the year after the initiation of therapy. Polypharmacy was more common in patients with indicators of more severe mental illness.

Characterization of therapy and costs for patients with uterine fibroids in Utah Medicaid

OBJECTIVES

To determine in an eligible Utah Medicaid population (1) medical and drug costs associated with treating uterine fibroids (UFs) and (2) the cost and incidence of hysterectomy complications.

METHODS

Medical and drug cost analyses were based on data from 897 premenopausal patients with UFs included in the Utah Medicaid database from 1996 to 2004. UF-related medical and pharmacy costs were determined from first diagnosis of UFs until a related procedure or until estimated menopause. Outcomes for patients treated with a procedure (hysterectomy, myomectomy, or embolization), medication, and watchful waiting (no procedure, no UF-related drug) were compared. When determining hysterectomy complication rates for the population of women in the Medicaid database, a total of 1,323 pre- or postmenopausal patients with UFs were included.

RESULTS

Overall, 20% of patients were treated with medication, 33% with a procedure, and 47% with watchful waiting. Mean total UF costs were: $11,996 (procedure), $2,703 (medication), and $2,118 (watchful waiting). Mean eligibility months were 8.8, 28.8, and 14.1, respectively. Costs/eligible month were: $1,358 (procedure), $151 (watchful waiting), and $94 (medication). The mean hysterectomy cost was $12,107.

CONCLUSION

Treatment for UFs is expensive with a mean cost of $5,504 per study patient. The highest costs are seen in patients receiving procedures, which can lead to complications; 15% in this study. Costs for watchful waiting are similar to costs in patients receiving UF-related drugs. Consideration should be given to using non-surgical therapies for the treatment of UFs before procedures are performed.

[Treatment of Helicobacter pylori in children]

BACKGROUND

There are very few studies that compare therapeutic protocols against H. pylori infection in children and the few available data derive from studies that usually evaluate the remission of symptoms or the accuracy of diagnostic procedures before and after treatment. Furthermore, no randomised, controlled clinical trials using placebo have been carried out in children.

METHODS

We systematically collected data from the pediatric literature on the treatment of H. pylori to assess the efficacy of various treatments. This review included all articles and letters published since 1987 and all abstracts presented at the three main international meetings from 1997 to 1999. The results of studies published in English and French journals were collected and analysed.

RESULTS

We only found 30 articles and 17 abstracts containing results on the treatment of H. pylori, carried out respectively in a total of 870 and 1552 children. All the data collected seemed to indicate that single-therapy or dual therapy with an antisecretory drug combined with an antibiotic showed a low level of efficacy. Dual therapy proved effective, in the form of bismuth and one antibiotic (amoxycillin or a nitroimidazole) or two antibiotics when administered for two or more weeks. The same was true of triple therapy based on bismuth or a proton pump inhibitor associated with two antibiotics. Triple therapies were less effective in children than in adults, and although triple therapies based on bismuth were more effective when administered for at least two weeks, the triple therapies based on a proton pump inhibitor showed a comparable level of efficacy irrespective of duration.

CONCLUSIONS

Dual therapies in children using two antibiotics appear to have a similar efficacy as triple therapies, and if the latter contain a proton pump inhibitor, they show a similar efficacy irrespective of duration. For this reason, it does not seem necessary to administer them for more than one week.

Usefulness of Helicobacter pylori stool antigen test to monitor response to eradication treatment in children

BACKGROUND

The monitoring of the results of eradication treatment is a crucial step for patients with Helicobacter pylori gastritis. A non-invasive test for H. pylori antigens in stools (HpSA) was recently validated for children.

AIM

To evaluate the accuracy of HpSA in monitoring eradication treatment in children.

METHODS

In 60 children, H. pylori gastritis was diagnosed by endoscopy and the 13C-urea breath test. The children were treated and returned for a follow-up (13)C-urea breath test 6 weeks after the end of treatment. Children were considered cured when the (13)C-urea breath test was negative. Stool were collected at baseline, and at 2 and 6 weeks. Stool antigens were measured by HpSA.

RESULTS

According to (13)C-urea breath test, 6 weeks after the end of treatment 49 children were cured and 11 were still H. pylori-positive. The sensitivity and specificity of HpSA on stools collected 2 weeks after therapy were 100%. At 6 weeks specificity was 93.9 and sensitivity 100%. Results by visual reading were concordant with the plate-reader in all but two cases at baseline.

CONCLUSIONS

HpSA is accurate for monitoring treatment in children as early as 2 weeks after therapy, when information is most useful and unachievable with other tests. Results by visual reading are accurate, and this can make the test cheaper and more practical.

A systematic review of Helicobacter pylori eradication treatment schedules in children

METHODS

We systematically reviewed all available data in the paediatric literature on treatment for Helicobacter pylori infection to determine overall efficacy of different schedules. A comprehensive search of all published articles and letters from 1987, and of abstracts presented at three main meetings on this topic between 1997 and 1999, was carried out. Results from all English and French papers, letters and abstracts were extracted and analysed.

RESULTS

Only 30 full articles and 16 abstracts were found, with results on eradication of H. pylori in 870 and 1552 children, respectively. Monotherapy or dual therapy with an antisecretory drug plus one antibiotic showed a very low efficacy. Dual therapies with bismuth plus one antibiotic (either amoxycillin or a nitro- imidazole) or two antibiotics when administered for 2 or more weeks were as effective as either bismuth-based or proton pump inhibitor-based triple therapies. Triple therapies were less effective than in adults, and while bismuth-based triple therapies were more effective when given for 2 weeks than for one week, proton pump inhibitor-based triple therapies have a similar efficacy irrespective of the duration.

CONCLUSION

In children dual therapies seemed as effective as triple therapies, and longer courses of proton pump inhibitor-base triple therapies are not better than shorter ones.

Validation of the 13C-urea breath test for the diagnosis of Helicobacter pylori infection in children: a multicenter study

OBJECTIVE

The 13C-urea breath test (13C-UBT) is a safe, noninvasive, and accurate test for the detection of Helicobacter pylori (H. pylori) infection in adults. The aim of this study was to evaluate sensitivity and specificity of 13C-UBT in children using different types of test meal, doses of 13C-urea and breath sampling intervals. As yet, a validated, standardized 13C-UBT protocol for children has not been formulated.

METHODS

13C-UBT was performed in 115 children and repeated within 3 days, modifying the test meal or the dose of 13C-urea. H. pylori status was assessed by histology and rapid urease test. 13C-UBT was performed using 100 mg or 50 mg of 13C-urea and a fatty test meal (100 FA; 50 FA), 50 mg of 13C-urea, and a carbohydrate test meal (50 CA). Breath samples were collected every 10 min for 60 min.

RESULTS

The 13C-UBT in children was highly sensitive and specific with all three protocols used. The best combination of sensitivity (97.92%) and specificity (97.96%) was obtained with Protocol 50 FA at 30 min with a cut-off of 3.5 per mil.

CONCLUSIONS

The 13C-UBT is an accurate test for the detection of H. pylori infection also in children. Administration of 50 mg of 13C-urea, a fatty test meal, and breath sampling at 30 min appears to be the most convenient protocol.

Transmission of Helicobacter pylori infection

Helicobacter pylori infection is one of the most common bacterial infections worldwide. It is accepted as the major cause of chronic gastritis, peptic ulcer, carcinoma of the distal part of the stomach and gastric lymphoma. However, how and when the infection is acquired remain largely unknown. Identification of mode of transmission is vital for developing preventive measures to interrupt its spread, but studies focused on this issue are difficult to implement. From epidemiological studies, it is known that there are great differences in the prevalence of infection in different populations and in ethnic groups originating from high prevalence regions. This is likely related to inferior hygienic conditions and sanitation. In developing countries, infection occurs at a much earlier age. In developed countries, the prevalence of infection is related to poor socioeconomic conditions, particularly density of living. Humans seem to be the only reservoir of H pylori, which spread from person to person by oral-oral, fecal-oral or gastro-oral routes. Most infections are acquired in childhood, possibly from parents or other children living as close contacts. Infection from the environment or from animals cannot be entirely excluded.

Linkage disequilibrium between intra-locus variants in the aminopeptidase n gene and test of their association with coeliac disease

Coeliac disease (CD) is a multigenic and multifactorial enteropathy triggered by gluten-composing proteins. A possible involvement of the intestinal Aminopeptidase N (APN) was investigated by an association analysis. SSCP analysis detected four variants at position 281, 378, 956 and 2957 (referred to no. g178535, GenBank) that were studied in 193 Italian CD families. The haplotypic combinations were determined from family segregation and pairwise linkage disequilibria (D' = D/Dmax) between the polymorphic sites were calculated. Significant D' values ranged between 0.78 and 0.31. Association with CD was tested by TDT (Transmission Disequilibrium Test) utilizing as markers the nucleotide substitutions and their haplotypic combinations. No statistically significant transmission distortion to the probands or to their clinically silent sibs was observed. Our data exclude an involvement in CD of the tested markers and of further undetected variation in strong linkage disequilibrium (D' approximately equal to 1) with them. The power of the test was not adequate to detect an association with an unknown polymorphism which is not in complete linkage disequilibrium with those analysed.

Clinical significance of Helicobacter pylori seropositivity and seronegativity in asymptomatic blood donors

To determine the clinical significance of Helicobacter pylori seropositivity and seronegativity in healthy blood donors, we carried out a serological evaluation of Helicobacter pylori status and endoscopy in a healthy blood donors population. In all, 1010 donors were screened for Helicobacter pylori by IgG ELISA and assessed for pepsinogen I and gastrin levels by RIA; 298 IgG seropositive and 61 seronegative subjects underwent endoscopy with biopsies. Of 359, 165 were also tested for CagA by western blotting. Of the 298 IgG seropositives, 274 were shown to be infected on biopsy testing. Endoscopy revealed 70 peptic ulcers, 41 cases of erosive duodenitis, and two gastric cancers. In all 105 seropositive donors were tested for CagA and 69 were CagA positive [34/58 gastritis (58.6%), 24/35 duodenal ulcer (68.6%) and 11/12 gastric ulcer (91.6%)]. Histologically active/chronic gastritis was associated with CagA: 88.4% vs 50% (CagA seropositive vs seronegative). Of the 61 IgG seronegatives, 59 were negative on biopsy testing. At endoscopy three had duodenitis. Of the 60/61 IgG seronegatives tested for CagA, one had a moderate reaction. Duodenal ulcer donors showed higher pepsinogen I levels than donors without duodenal ulcers (97.7 microg/ml vs 80.9 microg/ml respectively). Screening for Helicobacter pylori and anti-CagA seropositivity and pepsinogen I can identify individuals likely to have gastroduodenal pathology even in the absence of symptoms.

Management of Helicobacter pylori infection in children

When trying to decide which children with Helicobacter pylori infection should be treated and at what stage they should be tested, we should take into account the fact that eradication of the infection may be useful both to induce symptom remission and to prevent later complications in adulthood. However, well designed studies to identify those infected children who are at risk of developing complications or have symptoms due to the infection are still lacking. Current literature only gives information on how to treat children with H pylori infection. Treatment regimens that include two drugs are usually more effective than in adults, and produce an eradication rate of 70-80%, but they should be given for at least two weeks, shorter treatments being less effective. Antibiotic resistance can impair eradication rate and the frequency of resistant strains in children should be studied. Combinations of antibiotics with antisecretory drugs are highly effective in adults, but triple therapy with two antibiotics and an antisecretory drug has been seldom tried in children; compliance is often poor so that the eradication rate is often similar to that produced by dual therapy. Compliance strongly influences eradication, and short simple treatment regimens that produce rapid symptom remission with few side effects are needed to optimise patient compliance. After treatment, eradication must be proved. Serological tests can help, provided that pretreatment serum is available and three to six months have passed since the treatment. A 13C-ureabreath test (13C-UBT) should be performed at least six weeks after treatment, but false negative results can occur and cut-off must be adjusted.

Salivary immunoglobulin G assay to diagnose Helicobacter pylori infection in children

An in-house enzyme-linked immunosorbent assay (ELISA) for measurement of Helicobacter pylori-specific immunoglobulin G (IgG) and IgA in saliva was evaluated by comparison with histopathologic (Giemsa staining) and biochemical (urease quick test) examination of gastric biopsy specimens obtained from 112 children referred for diagnostic gastroscopy. Serum H. pylori IgG was also measured in a subgroup of 50 children by the same ELISA. Salivary H. pylori IgG levels were significantly higher in H. pylori-positive (n = 57) than in H. pylori-negative (n = 55) children (P < 0.001). The sensitivity and specificity of the salivary IgG test were 93 and 82%, respectively; the positive and negative predictive values were 84 and 92%, respectively; and the accuracy was 87.5%. Salivary H. pylori IgA did not distinguish H. pylori-positive from H. pylori-negative children. The performance of serum H. pylori IgG was slightly (3 to 6%) better than that of salivary H. pylori IgG. The salivary IgG test can be considered a useful tool for the screening of H. pylori infection in children.

Family treatment of symptomatic children with Helicobacter pylori infection

BACKGROUND

Familial clustering of Helicobacter pylori infection has been reported. We tested the hypothesis that simultaneously treating all Helicobacter pylori positive family contacts of infected symptomatic children results in lower treatment failure.

METHODS

Relatives of 47 children (index) with Helicobacter pylori gastritis had endoscopy to assess prevalence of infection in first degree cohabiting relatives. Controls included 60 children with dyspepsia and Helicobacter pylori gastritis whose infected family contacts were not treated. Index children, siblings younger than 18 years of age and control children received a 2-week course of amoxicillin and tinidazole. Parents of index children and their siblings over 18 years of age received a 2-week course of Colloidal Bismuth Subcytrate and tinidazole. The eradication rate in index children and their relatives was compared to controls whose infected family contacts were not treated.

RESULTS

Helicobacter pylori was found in 67% of 31 siblings younger than 18, in 82% of 22 siblings older than 18 years, and in 87% of 92 parents. Endoscopy, repeated four to six weeks after the end of treatment, showed Helicobacter pylori eradication in 94% of children and siblings younger than 18, and in 70% of parents and siblings over 18 years in the family treatment group, compared with 75% of control children (p < .01).

CONCLUSIONS

The high prevalence of the infection in family members suggests that person-to-person spread of Helicobacter pylori takes place. Furthermore our results show that if (or when) required, simultaneous treatment given to the whole family results in lower treatment failure, since it may promote compliance to treatment.

Serum pepsinogen I in childhood Helicobacter pylori gastritis: its relation to mucosal peptic activity

Serum pepsinogen I (PG I) levels are raised in children with Helicobacter pylori gastritis. To ascertain if this is due to increased production or to increased secretion of pepsin by chief cells, we measured mucosal peptic activity in antrum and gastric body mucosal homogenates and correlated it to serum PG I levels in 122 children with and without H. pylori gastritis. In patients infected with H. pylori, mucosal peptic activity was decreased when compared to control and to children with non H. pylori gastritis. Serum PG I levels were increased (P < 0.001) and were inversely related to mucosal peptic activity (P < 0.01). These findings suggest that H. pylori can promote a leakage of pepsinogen into the circulation.