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Campbell HM, Murata AE, Henrie AM, Conner TA. Combination Therapy Use and Associated Events in Clinical Practice Following Dissemination of Trial Findings: A De-Implementation Study Using Interrupted Time Series Analysis. Clin Ther 2024; 46:40-49. [PMID: 37953077 DOI: 10.1016/j.clinthera.2023.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 07/04/2023] [Accepted: 10/10/2023] [Indexed: 11/14/2023]
Abstract
PURPOSE It takes 17 years, on average, for trial results to be implemented into practice. Using data from the Department of Veterans Affairs (VA), this study assessed the potential impact on clinical practice of the dissemination of findings from a randomized, controlled trial reporting harm with the use of combination therapy. Communication between research and VA Pharmacy Benefits Management Services (PBM) provided the impetus for communication from the PBM about the findings of the trial in accordance with policy. METHODS In this de-implementation study, interrupted time series analysis was used for assessing prescribing patterns and adverse clinical events before and after the dissemination of the trial findings. The de-implementation strategy was multicomponent and multilevel. Strategies were aligned with categories outlined in the Expert Recommendations for Implementing Change: train and educate stakeholders, use evaluative and iterative strategies, develop stakeholder inter-relationships, change infrastructure, provide interactive assistance, and engage consumers. VA patients with type 2 diabetes mellitus, chronic kidney disease stages 1 to 3, and a moderate or severe albuminuria who received care between July 2008 and November 2017 were included. Patients were subgrouped according to treatment with an angiotensin-converting enzyme inhibitor + angiotensin receptor blocker. The primary end point was the prevalence of combination therapy use. Secondary end points were the incidences of acute kidney injury and hyperkalemia. FINDINGS This study followed 712,245 patients, 9297 of whom used combination therapy. Data were available from 428,535 and 283,710 patients pre- and post-intervention, respectively; among these, 8324 and 973 patients used combination therapy, the median ages were 66 and 68 years, and 96.92% and 98.82% were men. One month following communication from the PBM, the reductions in combination therapy users, acute kidney injury events, and hyperkalemia were 331.94 (95% CI, 500.27-163.32), 36.58% (95% CI, 31.90%-41.95%), and 25.49% (95% CI, 14.17%-36.07%) per 100,000 patients per month, respectively (all, P < 0.001), whereas before the communication, these changes were +14.84 (95% CI, 10.27-19.42), -3.46% (95% CI, 3.18-3.74), and -3.27% (95% CI, 2.66%-3.87%) (all, P < 0.001). IMPLICATIONS The apparent speed and impact of the implementation of changes resulting from the dissemination of trial findings into VA clinical practice are encouraging. The speed of implementation was much faster than average for health care providers in the United States. Established communications between research and clinical practice, as well as established policy and communications between PBM and clinical practice, may be a model for other health care organizations.
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Affiliation(s)
- Heather M Campbell
- Clinical Research Pharmacy Coordinating Center, Department of Veterans Affairs, Albuquerque, New Mexico; College of Pharmacy, University of New Mexico, Albuquerque, New Mexico.
| | - Allison E Murata
- Clinical Research Pharmacy Coordinating Center, Department of Veterans Affairs, Albuquerque, New Mexico
| | - Adam M Henrie
- Clinical Research Pharmacy Coordinating Center, Department of Veterans Affairs, Albuquerque, New Mexico; College of Pharmacy, University of New Mexico, Albuquerque, New Mexico
| | - Todd A Conner
- Clinical Research Pharmacy Coordinating Center, Department of Veterans Affairs, Albuquerque, New Mexico; College of Pharmacy, University of New Mexico, Albuquerque, New Mexico
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Joseph J, Pajewski NM, Dolor RJ, Ann Sellers M, Perdue LH, Peeples SR, Henrie AM, Woolard N, Jones WS, Benziger CP, Orkaby AR, Mixon AS, VanWormer JJ, Shapiro MD, Kistler CE, Polonsky TS, Chatterjee R, Chamberlain AM, Forman DE, Knowlton KU, Gill TM, Newby LK, Hammill BG, Cicek MS, Williams NA, Decker JE, Ou J, Rubinstein J, Choudhary G, Gazmuri RJ, Schmader KE, Roumie CL, Vaughan CP, Effron MB, Cooper-DeHoff RM, Supiano MA, Shah RC, Whittle JC, Hernandez AF, Ambrosius WT, Williamson JD, Alexander KP. Pragmatic evaluation of events and benefits of lipid lowering in older adults (PREVENTABLE): Trial design and rationale. J Am Geriatr Soc 2023; 71:1701-1713. [PMID: 37082807 PMCID: PMC10258159 DOI: 10.1111/jgs.18312] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/17/2023] [Accepted: 01/29/2023] [Indexed: 04/22/2023]
Abstract
Whether initiation of statins could increase survival free of dementia and disability in adults aged ≥75 years is unknown. PREVENTABLE, a double-blind, placebo-controlled randomized pragmatic clinical trial, will compare high-intensity statin therapy (atorvastatin 40 mg) with placebo in 20,000 community-dwelling adults aged ≥75 years without cardiovascular disease, disability, or dementia at baseline. Exclusion criteria include statin use in the prior year or for >5 years and inability to take a statin. Potential participants are identified using computable phenotypes derived from the electronic health record and local referrals from the community. Participants will undergo baseline cognitive testing, with physical testing and a blinded lipid panel if feasible. Cognitive testing and disability screening will be conducted annually. Multiple data sources will be queried for cardiovascular events, dementia, and disability; survival is site-reported and supplemented by a National Death Index search. The primary outcome is survival free of new dementia or persisting disability. Co-secondary outcomes are a composite of cardiovascular death, hospitalization for unstable angina or myocardial infarction, heart failure, stroke, or coronary revascularization; and a composite of mild cognitive impairment or dementia. Ancillary studies will offer mechanistic insights into the effects of statins on key outcomes. Biorepository samples are obtained and stored for future study. These results will inform the benefit of statins for increasing survival free of dementia and disability among older adults. This is a pioneering pragmatic study testing important questions with low participant burden to align with the needs of the growing population of older adults.
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Affiliation(s)
| | | | - Rowena J. Dolor
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | - Mary Ann Sellers
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | | | | | - Adam M. Henrie
- Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Office of Research and Development, Department of Veterans Affairs, Albuquerque, NM
| | - Nancy Woolard
- Wake Forest University School of Medicine, Winston-Salem, NC
| | - W. Schuyler Jones
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | | | - Ariela R. Orkaby
- New England Geriatric Research, Education, and Clinical Center (GRECC), VA Boston Healthcare System, and Division of Aging, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA
| | - Amanda S. Mixon
- Vanderbilt University Medical Center and Geriatric Research Education and Clinical Center (GRECC), VA Tennessee Valley Healthcare System, Nashville, TN
| | | | | | - Christine E. Kistler
- Department of Family Medicine, School of Medicine, University of North Carolina at Chapel Hill, NC
| | | | - Ranee Chatterjee
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | | | - Daniel E. Forman
- Department of Medicine, Sections of Geriatrics and Cardiology, University of Pittsburgh; Pittsburgh GRECC, VA Pittsburgh Healthcare System, Pittsburgh, PA
| | | | | | - L. Kristin Newby
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | - Bradley G. Hammill
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | | | | | - Jake E. Decker
- Section of Primary Care Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Jiafu Ou
- Cardiology Division, John Cochran VA Medical Center and Cardiology Division, Washington University School of Medicine, St. Louis, MO
| | - Jack Rubinstein
- Division of Cardiology, Cincinnati VAMC and Division of Cardiovascular Diseases, Department of Internal Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH
| | - Gaurav Choudhary
- Providence VA Medical Center, and Lifespan Cardiovascular Institute, and Alpert Medical School of Brown University, Providence RI
| | - Raúl J. Gazmuri
- Captain James A. Lovell Federal Health Care Center and Rosalind Franklin University of Medicine and Science, Chicago, IL
| | | | - Christianne L. Roumie
- Vanderbilt University Medical Center and Geriatric Research Education and Clinical Center (GRECC), VA Tennessee Valley Healthcare System, Nashville, TN
| | - Camille P. Vaughan
- Birmingham/Atlanta Geriatric Research Education and Clinical Center (GRECC), Department of Veterans Affairs, and Division of Geriatrics & Gerontology, Department of Medicine, Emory University, Atlanta, GA
| | - Mark B. Effron
- John Ochsner Heart and Vascular Institute, The University of Queensland Ochsner Clinical School, New Orleans, LA
| | | | | | - Raj C. Shah
- Family & Preventive Medicine and the Rush Alzheimer’s Disease Center, Rush University, Chicago, IL
| | | | - Adrian F. Hernandez
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | | | | | - Karen P. Alexander
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
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Goldberg A, Bakhireva LN, Page K, Henrie AM. A Qualitative Scoping Review of Early-Terminated Clinical Trials Sponsored by the Department of Veterans Affairs Cooperative Studies Program From 2010 to 2020. Epidemiol Rev 2022; 44:110-120. [PMID: 36193844 PMCID: PMC10362930 DOI: 10.1093/epirev/mxac009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 12/29/2022] Open
Abstract
Increasing attention has been paid to the risks and benefits of terminating large clinical trials before reaching prespecified targets, because such decisions can greatly affect the implementation of findings. The Department of Veterans Affairs (VA) Cooperative Studies Program (CSP) is a research infrastructure dedicated to conducting high-quality clinical research. A scoping review was performed to characterize barriers preventing the attainment of prespecified recruitment, statistical power, or sample-size targets in VA CSP trials. A trial was eligible for inclusion if the trial was sponsored by the VA CSP, primary findings were published within the last 10 years, and a decision was made to terminate enrollment or follow-up before meeting a priori recruitment or endpoint targets. In 11 of 29 included trials (37.9%), a decision was made to terminate the trial early. The most common reason for early termination was related to under-recruitment (n = 5). Other reasons included early detection of safety signals (n = 2), futility (n = 1), and benefit (n = 1). This review highlights recruitment as a critical facet of trial conduct that may hinder the production of high-quality data and thus warrant additional attention. Solutions to enhance recruitment now implemented by the VA CSP, including dedicated enrollment infrastructure and screening facilitated by informatics approaches, show promise in reducing this cause for early termination.
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Affiliation(s)
- Alexa Goldberg
- Correspondence to Dr. Alexa Goldberg, Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, 2401 Centre Avenue, SE, Albuquerque, NM 87106 (e-mail: )
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Krystal JH, Chow B, Vessicchio J, Henrie AM, Neylan TC, Krystal AD, Marx BP, Xu K, Jindal RD, Davis LL, Schnurr PP, Stein MB, Thase ME, Ventura B, Huang GD, Shih MC. Design of the National Adaptive Trial for PTSD-related Insomnia (NAP Study), VA Cooperative Study Program (CSP) #2016. Contemp Clin Trials 2021; 109:106540. [PMID: 34416369 DOI: 10.1016/j.cct.2021.106540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 11/15/2022]
Abstract
There are currently no validated pharmacotherapies for posttraumatic stress disorder (PTSD)-related insomnia. The purpose of the National Adaptive Trial for PTSD-Related Insomnia (NAP Study) is to efficiently compare to placebo the effects of three insomnia medications with different mechanisms of action that are already prescribed widely to veterans diagnosed with PTSD within U.S. Department of Veterans Affairs (VA) Medical Centers. This study plans to enroll 1224 patients from 34 VA Medical Centers into a 12- week prospective, randomized placebo-controlled clinical trial comparing trazodone, eszopiclone, and gabapentin. The primary outcome measure is insomnia, assessed with the Insomnia Severity Index. A novel aspect of this study is its adaptive design. At the recruitment midpoint, an interim analysis will be conducted to inform a decision to close recruitment to any "futile" arms (i.e. arms where further recruitment is very unlikely to yield a significant result) while maintaining the overall study recruitment target. This step could result in the enrichment of the remaining study arms, enhancing statistical power for the remaining comparisons to placebo. This study will also explore clinical, actigraphic, and biochemical predictors of treatment response that may guide future biomarker development. Lastly, due to the COVID-19 pandemic, this study will allow the consenting process and follow-up visits to be conducted via video or phone contact if in-person meetings are not possible. Overall, this study aims to identify at least one effective pharmacotherapy for PTSD-related insomnia, and, perhaps, to generate definitive negative data to reduce the use of ineffective insomnia medications. NATIONAL CLINICAL TRIAL (NCT) IDENTIFIED NUMBER: NCT03668041.
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Affiliation(s)
- John H Krystal
- Clinical Neuroscience Division, National Center for PTSD, VA Connecticut Healthcare System, West Haven, CT, United States of America; Department of Psychiatry, Yale School of Medicine, New Haven, CT, United States of America; Departments of Neuroscience and Psychology, Yale University, New Haven, CT, United States of America.
| | - Bruce Chow
- Cooperative Studies Program Coordinating Center (CSPCC), VA Palo Alto Healthcare System, Palo Alto, CA, United States of America
| | - Jennifer Vessicchio
- Clinical Neuroscience Division, National Center for PTSD, VA Connecticut Healthcare System, West Haven, CT, United States of America; Department of Psychiatry, Yale School of Medicine, New Haven, CT, United States of America
| | - Adam M Henrie
- Cooperative Studies Program, Clinical Research Pharmacy Coordinating Center (CSPCRPCC), U.S. Department of Veterans Affairs, Albuquerque, NM, United States of America
| | - Thomas C Neylan
- Department of Psychiatry and UCSF Weill Institute for Neurosciences, School of Medicine, University of California, San Francisco, CA; VA San Francisco Healthcare System, San Francisco, CA, United States of America
| | - Andrew D Krystal
- Department of Psychiatry and UCSF Weill Institute for Neurosciences, School of Medicine, University of California, San Francisco, CA
| | - Brian P Marx
- Behavioral Sciences Division, National Center for PTSD, VA Boston Healthcare System, Boston, MA, Department of Psychiatry, Boston University School of Medicine, Boston, MA, United States of America
| | - Ke Xu
- Clinical Neuroscience Division, National Center for PTSD, VA Connecticut Healthcare System, West Haven, CT, United States of America; Department of Psychiatry, Yale School of Medicine, New Haven, CT, United States of America
| | - Ripu D Jindal
- Department of Psychiatry, Birmingham VA Medical Center, Departments of Neurology and Psychiatry, University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Lori L Davis
- Tuscaloosa VA Medical Center, Tuscaloosa, AL, United States of America; Department of Psychiatry, University of Alabama School of Medicine, Birmingham, AL, United States of America
| | - Paula P Schnurr
- Executive Division, National Center for PTSD, White River Junction, VT, Department of Psychiatry, Geisel School of Medicine at Dartmouth, Hanover, NH, United States of America
| | - Murray B Stein
- VA San Diego Healthcare System, San Diego, CA, Departments of Psychiatry, Family Medicine, and Public Health, University of California, San Diego, CA, United States of America
| | - Michael E Thase
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States of America
| | - Beverly Ventura
- Cooperative Studies Program Coordinating Center (CSPCC), VA Palo Alto Healthcare System, Palo Alto, CA, United States of America
| | - Grant D Huang
- Cooperative Studies Program, Office of Research and Development, U.S. Department of Veterans Affairs, Washington, DC, United States of America
| | - Mei-Chiung Shih
- Cooperative Studies Program Coordinating Center (CSPCC), VA Palo Alto Healthcare System, Palo Alto, CA, United States of America; Department of Biomedical Data Science, Stanford School of Medicine, Stanford, CA, United States of America
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Bessesen MT, Doros G, Henrie AM, Harrington KM, Hermos JA, Bonomo RA, Ferguson RE, Huang GD, Brown ST. A multicenter randomized placebo controlled trial of rifampin to reduce pedal amputations for osteomyelitis in veterans with diabetes (VA INTREPID). BMC Infect Dis 2020; 20:23. [PMID: 31914940 PMCID: PMC6950878 DOI: 10.1186/s12879-019-4751-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/30/2019] [Indexed: 12/13/2022] Open
Abstract
Background The prevalence of diabetes mellitus continues to inexorably rise in the United States and throughout the world. Lower limb amputations are a devastating comorbid complication of diabetes mellitus. Osteomyelitis increases the risk of amputation fourfold and commonly presages death. Antimicrobial therapy for diabetic foot osteomyelitis (DFO) varies greatly, indicating that high quality data are needed to inform clinical decision making. Several small trials have indicated that the addition of rifampin to backbone antimicrobial regimens for osteomyelitis outside the setting of the diabetic foot results in 28 to 42% higher cure rates. Methods/design This is a prospective, randomized, double-blind investigation of the addition of 6 weeks of rifampin, 600 mg daily, vs. matched placebo (riboflavin) to standard-of-care, backbone antimicrobial therapy for DFO. The study population are patients enrolled in Veteran Health Administration (VHA), ages ≥18 and ≤ 89 years with diabetes mellitus and definite or probable osteomyelitis of the foot for whom an extended course of oral or intravenous antibiotics is planned. The primary endpoint is amputation-free survival. The primary hypothesis is that using rifampin as adjunctive therapy will lower the hazard rate compared with the group that does not use rifampin as adjunctive therapy. The primary hypothesis will be tested by means of a two-sided log-rank test with a 5% significance level. The test has 90% power to detect a hazard ratio of 0.67 or lower with a total of 880 study participants followed on average for 1.8 years. Discussion VA INTREPID will test if a rifampin-adjunctive antibiotic regimen increases amputation-free survival in patients seeking care in the VHA with DFO. A positive finding and its adoption by clinicians would reduce lower extremity amputations and their associated physical and emotional impact and reduce mortality for Veterans and for the general population with diabetic foot osteomyelitis. Given that rifampin-adjunctive regimens are currently employed for therapy for the majority of DFO cases in Europe, and only in a small minority of cases in the United States, the trial results will impact therapeutic decisions, even if the null hypothesis is not rejected. Trial registration Registered January 6, 2017 at ClinicalTrials.gov, NCT03012529.
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Affiliation(s)
- Mary T Bessesen
- Department of Veterans Affairs Eastern Colorado Healthcare System, Denver, CO, USA.,Division of Infectious Diseases, Department of Medicine, University of Colorado - Denver, Aurora, CO, USA
| | - Gheorghe Doros
- Massachusetts Veterans Epidemiology Research and Information Center, VA Boston Healthcare System, Boston, MA, USA.,Department of Biostatistics, Boston University, Boston, MA, USA
| | - Adam M Henrie
- Department of Veterans Affairs, Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Office of Research and Development, Albuquerque, NM, USA
| | - Kelly M Harrington
- Massachusetts Veterans Epidemiology Research and Information Center, VA Boston Healthcare System, Boston, MA, USA.,Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - John A Hermos
- Massachusetts Veterans Epidemiology Research and Information Center, VA Boston Healthcare System, Boston, MA, USA.,Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Robert A Bonomo
- Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, USA.,Case Western Reserve University, Cleveland, OH, USA
| | - Ryan E Ferguson
- Massachusetts Veterans Epidemiology Research and Information Center, VA Boston Healthcare System, Boston, MA, USA.,Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Grant D Huang
- Department of Veterans Affairs, Cooperative Studies Program Central Office, Washington, DC, USA
| | - Sheldon T Brown
- James J. Peters VA Medical Center, New York, NY, USA. .,Department of Medicine, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.
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Henrie AM, Sather MR, Bakhireva LN, Nawarskas JJ, Boardman KD, Huang GD. Impact of Department of Veterans Affairs Cooperative Studies Program clinical trials on practice guidelines for high blood pressure management. Contemp Clin Trials Commun 2018; 13:100313. [PMID: 30582070 PMCID: PMC6298905 DOI: 10.1016/j.conctc.2018.100313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/27/2018] [Accepted: 12/02/2018] [Indexed: 01/13/2023] Open
Abstract
Knowing the extent to which a clinical trial's findings translate into clinical practice can be challenging. One practical approach to estimating a trial's influence on clinical practice can be achieved by assessing how the trial informed relevant clinical practice guidelines (CPGs). Accordingly, the objectives of this study were to provide an overview of all the clinical trials involving the Department of Veterans Affairs (VA) Cooperative Studies Program (CSP) that aimed at informing or resulted in informing the management of high blood pressure and to identify and describe the extent to which these trials informed CPGs for the management of high blood pressure. A total of 26 clinical trials involving the VA CSP were identified. Using bibliographic information, 21 CPGs for the management of hypertension representing over 40 years of treatment recommendations from eight collectives were evaluated to determine how they were informed by trials involving the VA CSP. From 1977 to 2018, 13 of the 26 trials (50.0%) were found to have informed 19 of the 21 CPGs (90.5%) a total of 54 times (mean = 2.6 trial citations per CPG, SD ± 1.8). Clinical trials involving the VA CSP have informed a sizeable proportion of CPGs for the management of high blood pressure over the past 40 years. Because of this impact on the CPGs, these trials are also likely to have had at least moderate influence on clinical practice.
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Affiliation(s)
- Adam M Henrie
- Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Office of Research and Development, Department of Veterans Affairs, 2401 Center Ave SE, Albuquerque, NM, 87106, USA
| | - Mike R Sather
- Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Office of Research and Development, Department of Veterans Affairs, 2401 Center Ave SE, Albuquerque, NM, 87106, USA
| | - Ludmila N Bakhireva
- Department of Pharmacy Practice & Administrative Services, College of Pharmacy, University of New Mexico, MSC09 5360, 1 University of New Mexico, Albuquerque, NM, 87131, USA
| | - James J Nawarskas
- Department of Pharmacy Practice & Administrative Services, College of Pharmacy, University of New Mexico, MSC09 5360, 1 University of New Mexico, Albuquerque, NM, 87131, USA
| | - Kathy D Boardman
- Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Office of Research and Development, Department of Veterans Affairs, 2401 Center Ave SE, Albuquerque, NM, 87106, USA
| | - Grant D Huang
- Cooperative Studies Program, Office of Research and Development, Department of Veterans Affairs, 810 Vermont Avenue NW, Washington, DC, 20420, USA
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Timilsina S, Brittan K, O'Dell JR, Brophy M, Davis-Karim A, Henrie AM, Neogi T, Newcomb J, Palevsky PM, Pillinger MH, Pittman D, Taylor TH, Wu H, Mikuls TR. Design and Rationale for the Veterans Affairs "Cooperative Study Program 594 Comparative Effectiveness in Gout: Allopurinol vs. Febuxostat" Trial. Contemp Clin Trials 2018; 68:102-108. [PMID: 29597007 DOI: 10.1016/j.cct.2018.03.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 03/21/2018] [Accepted: 03/22/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Gout patients do not routinely achieve optimal outcomes related in part to suboptimal administration of urate lowering therapy (ULT) including first-line xanthine oxidase inhibitors allopurinol or febuxostat. Studies leading to the approval of febuxostat compared this agent to allopurinol in inappropriately low, fixed doses. We will compare allopurinol with febuxostat in gout using appropriately titrated doses of both agents and a "treat-to-target" strategy congruent with specialty guidelines. METHODS We have planned and initiated the Veterans Affairs (VA) Cooperative Study Program (CSP) 594, Comparative Effectiveness in Gout: Allopurinol vs Febuxostat study. This large double-blind, non-inferiority trial will enroll 950 gout patients randomized to receive allopurinol or febuxostat. Patients will be followed for a total of 72 weeks encompassing 3 distinct 24-week study phases. During Phase I (0-24 weeks), participants will undergo gradual dose titration of ULT until achievement of serum uric acid (sUA) <6.0 mg/dL or <5.0 mg/dL if tophi are present. Dose escalation will not be allowed during final three study visits of Phase 2 (24-48 weeks) and during Phase 3 (48-72 weeks). The primary study outcome is the proportion of participants experiencing at least one gout flare during Phase 3. Subsequent to the 72-week study, participants will be followed passively for up to 10 years after the study to assess long-term health outcomes. CONCLUSION With its completion, the VA Comparative Effectiveness in Gout: Allopurinol vs Febuxostat study will demonstrate the central role of gradual ULT dose escalation and a treat-to-target strategy in gout management.
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Affiliation(s)
- S Timilsina
- VA Nebraska-Western Iowa Health Care System, Omaha, NE, United States; University of Nebraska Medical Center, Omaha, NE, United States
| | - K Brittan
- VA Nebraska-Western Iowa Health Care System, Omaha, NE, United States; University of Nebraska Medical Center, Omaha, NE, United States
| | - J R O'Dell
- VA Nebraska-Western Iowa Health Care System, Omaha, NE, United States; University of Nebraska Medical Center, Omaha, NE, United States
| | - M Brophy
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), Cooperative Study Program Coordinating Center, Boston, MA, United States
| | - A Davis-Karim
- VA Cooperative Study Program, Clinical Research Pharmacy Coordinating Center, Albuquerque, NM, United States
| | - A M Henrie
- VA Cooperative Study Program, Clinical Research Pharmacy Coordinating Center, Albuquerque, NM, United States
| | - T Neogi
- Boston University School of Medicine, Boston, MA, United States
| | - J Newcomb
- VA Nebraska-Western Iowa Health Care System, Omaha, NE, United States; University of Nebraska Medical Center, Omaha, NE, United States
| | - P M Palevsky
- VA Pittsburgh Healthcare System, Pittsburgh, PA, United States
| | - M H Pillinger
- New York University Langone Medical Center, New York, NY, United States
| | - D Pittman
- VA Cooperative Study Program, Clinical Research Pharmacy Coordinating Center, Albuquerque, NM, United States
| | - T H Taylor
- White River Junction VA Hospital, White River Junction, VT, United States
| | - H Wu
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), Cooperative Study Program Coordinating Center, Boston, MA, United States
| | - T R Mikuls
- VA Nebraska-Western Iowa Health Care System, Omaha, NE, United States; University of Nebraska Medical Center, Omaha, NE, United States.
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Henrie AM, Wittstrom K, Delu A, Deming P. Evaluation of Liver Biomarkers as Prognostic Factors for Outcomes to Yttrium-90 Radioembolization of Primary and Secondary Liver Malignancies. Cancer Biother Radiopharm 2016; 30:305-9. [PMID: 26352926 DOI: 10.1089/cbr.2015.1842] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The objective of this study was to examine indicators of liver function and inflammation for prognostic value in predicting outcomes to yttrium-90 radioembolization (RE). In a retrospective analysis, markers of liver function and inflammation, biomarkers required to stage liver function and inflammation, and data regarding survival, tumor response, and progression after RE were recorded. Univariate regression models were used to investigate the prognostic value of liver biomarkers in predicting outcome to RE as measured by survival, tumor progression, and radiographic and biochemical tumor response. Markers from all malignancy types were analyzed together. A subgroup analysis was performed on markers from patients with metastatic colorectal cancer. A total of 31 patients received RE from 2004 to 2014. Median survival after RE for all malignancies combined was 13.6 months (95% CI: 6.7-17.6 months). Results from an exploratory analysis of patient data suggest that liver biomarkers, including albumin concentrations, international normalized ratio, bilirubin concentrations, and the model for end-stage liver disease score, possess prognostic value in predicting outcomes to RE.
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Affiliation(s)
- Adam M Henrie
- 1 College of Pharmacy, MSC09 5360 1 University of New Mexico , Albuquerque, New Mexico
| | - Kristina Wittstrom
- 1 College of Pharmacy, MSC09 5360 1 University of New Mexico , Albuquerque, New Mexico
| | - Adam Delu
- 2 School of Medicine, University of New Mexico , Albuquerque, New Mexico
| | - Paulina Deming
- 1 College of Pharmacy, MSC09 5360 1 University of New Mexico , Albuquerque, New Mexico
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Henrie AM, Nawarskas JJ, Anderson JR. Clinical utility of tadalafil in the treatment of pulmonary arterial hypertension: an evidence-based review. Core Evid 2015; 10:99-109. [PMID: 26587013 PMCID: PMC4636095 DOI: 10.2147/ce.s58457] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Pulmonary arterial hypertension (PAH) is a chronic and disabling condition characterized by an elevated pulmonary vascular resistance and an elevated mean pulmonary arterial pressure. Despite recent improvements in treatment availability, PAH remains challenging to treat, burdensome for patients, and ultimately incurable. Tadalafil is a phos-phodiesterase-5 inhibitor that is administered once daily by mouth for the treatment of PAH. Current treatment guidelines recommend tadalafil as an option for patients with World Health Organization functional class II or III PAH. In a placebo-controlled clinical trial, patients taking tadalafil demonstrated significantly improved exercise capacity as measured by the 6-minute walk distance. Patients also experienced decreased incidence of clinical worsening, increased quality of life, and improved cardiopulmonary hemodynamics. Uncontrolled studies and smaller trials have indicated a possible role for tadalafil as a suitable alternative to sildenafil and as a beneficial add-on option when used in combination with other treatments for PAH. Tadalafil is generally safe and well tolerated. Adverse events are typically mild-to-moderate in intensity, and discontinuation rates are usually low. The purpose of this review is to provide an evidence-based evaluation of the clinical utility of tadalafil in the treatment of PAH.
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Affiliation(s)
- Adam M Henrie
- College of Pharmacy, University of New Mexico, Albuquerque, NM, USA
| | | | - Joe R Anderson
- College of Pharmacy, University of New Mexico, Albuquerque, NM, USA
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