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537 citation(s) found for "Walker, J C".

Newborn Screening for Severe Combined Immunodeficiency in 11 Screening Programs in the United States
Kwan, Antonia , Abraham, Roshini S. , Currier, Robert J. , Andruszewski, Karen, Abbott, Jordan K. , Ballow, Mark, Bartoshesky, Louis, Bonilla, Francisco A., Brokopp, Charles D., Brooks, Edward G. , Caggana, Michele, Celestin, Jocelyn, Church, Joseph A., Comeau, Anne Marie , Connelly, James A. , Cowan, Morton J. , Cunningham‐Rundles, Charlotte , Dasu, Trivikram , Dave, Nina, Morena, M. Teresa de la , Duffner, Ulrich, Fong, Chin-To, Forbes, Lisa R., Freedenberg, Debra, Gelfand, Erwin W. , Hale, Jaime E. , Hanson, I. Celine , Hay, Beverly N., Hu, Diana, Infante, Anthony J., Johnson, Daisy, Kapoor, Neena , Kay, Denise M. , Lee, Rachel , Lehman, Heather K. , Lin, Zhili, Lorey, Fred, Abdel‐Mageed, Aly, Manning, Adrienne, McGhee, Sean, Naides, Stanley J. , Orange, Jordan S. , Pai, Sung‐Yun , Porteus, Matthew H. , Rodríguez, Ray, Romberg, Neil , Routes, John M. , Ruehle, Mary, Rubenstein, Arye, Saavedra‐Matiz, Carlos A., Scott, G. E. M., Scott, Patricia M., Secord, Elizabeth , Seroogy, Christine M. , Shearer, William T. , Siegel, Subhadra , Silvers, Stacy K., Stiehm, E. Richard, Sugerman, Robert W., Sullivan, John L., Tanksley, Susan, Tierce, Millard L., Verbsky, James , Vogel, Beth , Walker, Rosalyn, Walkovich, Kelly, Walter, Jolán E. , Watson, Michael S., Weinberg, Geoffrey A. , Weiner, Leonard B. , Wood, Heather, Yates, Anne, Puck, Jennifer M. , Satter, Lisa Forbes , Brower, Amy , Baker, Mei Wang , Kohn, Donald B. , Moore, Theodore Bruce , Notarangelo, Luigi D , Walker, Rosalyn, Wasserman, Richard L. , Currier, Robert , Forbes Satter, Lisa R

JAMA | August 19, 2014 | Volume: 312 | Issue: 7 | Pages: 729

10.1001/jama.2014.9132 | PMID 25138334 Get It

Abstract P2-16-10: Safety of pertuzumab plus trastuzumab plus vinorelbine for first-line treatment of patients with HER2-positive locally advanced or metastatic breast cancer
Perez, EA, López-Vega, JM, Zamagni, Claudio , Freudensprung, Ulrich, Bastière-Truchot, Lydie, Walker, Russell, Mastro, Lucia Del , Petit, Thomas , Andersson, Magnus V

Cancer Research | August 14, 2014 | Volume: 73 | Issue: 24_Supplement | Pages: P2-16-10-P2-16-10

10.1158/0008-5472.sabcs13-p2-16-10 Get It

Abstract Background: HER2 overexpression or amplification, occuring in ∼15-20% of breast cancers (BC), is associated with a poor prognosis. Trastuzumab (T) and pertuzumab (P) are humanized monoclonal antibodies that bind to different HER2 epitopes, inhibiting HER2 signaling. It was previously shown that first-line (1L) treatment of patients (pts) with HER2-positive metastatic breast cancer (MBC) with vinorelbine (V)+T had similar efficacy to docetaxel+T, but with fewer adverse events (AEs) (HERNATA). In a recent study, P+T+docetaxel significantly improved progression-free survival (PFS) and overall survival (OS) compared with T+docetaxel in pts with HER2-positive 1L MBC (CLEOPATRA). The objective of the VELVET study is to investigate the efficacy and safety of P+T+V for 1L treatment of HER2-positive MBC. Methods: This is a multicenter, open-label, single-arm, two-cohort, Phase II study. The recruitment target is 105 pts per cohort. Pts in Cohort 1 receive P+T+V as separate infusions. Pts in Cohort 2 receive P+T from a single infusion bag followed by V. The initial dose of P is 840 mg, followed by 420 mg q3w; the initial dose of T is 8 mg/kg, followed by 6 mg/kg q3w; V is administered at 25 mg/m2 in Cycle 1, followed by 30-35 mg/m2, on Days 1 and 8 of each cycle, q3w. Pts must have HER2-positive MBC or locally advanced BC (LABC) and a baseline left ventricular ejection fraction (LVEF) of ≥55%. Previous treatment with systemic nonhormonal anticancer therapy in the metastatic setting is not allowed. The primary endpoint is independently assessed overall response rate. Secondary endpoints include PFS, OS, and safety. Results: Interim safety data are presented for Cohort 1; 106 pts were enrolled. Median age at screening was 56 years. Median interval between initial BC diagnosis and enrollment was 2.6 years. 33% of pts had Stage IV BC at initial BC diagnosis. At diagnosis of advanced disease, 13% and 87% of pts had LABC and MBC, respectively. 54% of pts had previously received chemotherapy, including taxane (38%) and anthracycline (36%). 41% had prior T exposure. A median of 6 cycles of P, T, and V was received at the time of this analysis. An AE overview is shown in the table. Pts, n(%)N = 106Any AE102(96)Grade 338(36)Grade 417(16)Grade 52(2)aAny serious AE25(24)Most frequent (≥4 pts) grade ≥3 AEs Neutropeniab21(20)Febrile neutropenia6(6)Leukopenia5(5)Asthenia4(4)Constipation4(4)Diarrhea4(4)a Myocardial infarction and septic shock; b Covers ‘neutropenia’ and ‘neutrophil count decreased’ Grade ≥3 neutropenia/febrile neutropenia was experienced by 8% of pts in Cycle 1 and by 14% of pts in Cycle 2; this proportion decreased during subsequent cycles. There was no overall decrease in mean LVEF from baseline. Conclusions: The combination of P+T+V was well tolerated; no new safety signals were observed. The incidences of grade ≥3 neutropenia, febrile neutropenia, and leukopenia were lower than those previously observed in pts with HER2-positive MBC treated with 1L P+T+docetaxel in CLEOPATRA or those treated with T+V in HERNATA; however, it should be noted that the treatment period in these two studies was longer. Efficacy data for Cohorts 1 and 2 will be reported at the end of the study. Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-16-10.
Stability in the cumulative incidence, severity and mortality of 101 cases of invasive mucormycosis in high‐risk patients from 1995 to 2011: a comparison of eras immediately before and after the availability of voriconazole and echinocandin‐amphotericin co
Abidi, Maheen Z. , Sohail, M. Rizwan , Wilhelm, Mark , Wengenack, Nancy L. , Brumble, Lisa , Shah, Harshal , Hata, D. Jane , McCullough, Ann E. , Wendel, Amy J., Vikram, Holenarasipur R. , Kusne, Shimon , Litzow, Mark R. , Letendre, Louis, Lahr, Brian D. , Poeschla, Eric M. , Walker, Randall C., Cummins, Nathan W. , Vikram, Holenarasipur R. , Sohail, M Rizwan , Abidi, Maheen Z , Abidi, Maheen Z

Mycoses | July 18, 2014 | Volume: 57 | Issue: 11 | Pages: 687-698

10.1111/myc.12222 | PMID 25040241 Get It

SummaryAs invasive mucormycosis (IM) numbers rise, clinicians suspect prior voriconazole worsens IM incidence and severity, and believe combination anti‐fungal therapy improves IM survival. To compare the cumulative incidence (CI), severity and mortality of IM in eras immediately before and after the commercial availability of voriconazole all IM cases from 1995 to 2011 were analysed across four risk‐groups (hematologic/oncologic malignancy (H/O), stem cell transplantation (SCT), solid organ transplantation (SOT) and other), and two eras, E1 (1995–2003) and E2, (2004–2011). Of 101 IM cases, (79 proven, 22 probable): 30 were in E1 (3.3/year) and 71 in E2 (8.9/year). Between eras, the proportion with H/O or SCT rose from 47% to 73%, while ‘other’ dropped from 33% to 11% (P = 0.036). Between eras, the CI of IM did not significantly increase in SCT (P = 0.27) or SOT (P = 0.30), and patterns of anatomic location (P = 0.122) and surgical debridement (P = 0.200) were similar. Significantly more patients received amphotericin‐echinocandin combination therapy in E2 (31% vs. 5%, P = 0.01); however, 90‐day survival did not improve (54% vs. 59%, P = 0.67). Since 2003, the rise of IM reflects increasing numbers at risk, not prior use of voriconazole. Frequent combination of anti‐fungal therapy has not improved survival.
Diagnosis and management of adult coeliac disease: guidelines from the British Society of Gastroenterology
Bai, Julio C. , Biagi, Federico , Card, Tim , Ciacci, Carolina , Ciclitira, Paul J. , Green, Peter H.R. , Hadjivassiliou, Marios , Holdoway, Anne , Heel, David A. van , Kaukinen, Katri , Leffler, Daniel A. , Leonard, Jonathan N., McGough, Norma, Davidson, Mike, Swift, G L, Walker, Marjorie M. , Zingone, Fabiana , Sanders, David S. , Group, Authors of the BSG Coeliac Disease Guidelines Development, Ludvigsson, Jonas F. , Lundin, Knut E. A. , Murray, Joseph A. , Group, Authors of the BSG Coeliac Disease Guidelines Development, van Heel, David A , Ciacci, Carolina

Gut | June 11, 2014 | Volume: 63 | Issue: 8 | Pages: 1210-1228

10.1136/gutjnl-2013-306578 | PMID 24917550 Get It

A multidisciplinary panel of 18 physicians and 3 non-physicians from eight countries (Sweden, UK, Argentina, Australia, Italy, Finland, Norway and the USA) reviewed the literature on diagnosis and management of adult coeliac disease (CD). This paper presents the recommendations of the British Society of Gastroenterology. Areas of controversies were explored through phone meetings and web surveys. Nine working groups examined the following areas of CD diagnosis and management: classification of CD; genetics and immunology; diagnostics; serology and endoscopy; follow-up; gluten-free diet; refractory CD and malignancies; quality of life; novel treatments; patient support; and screening for CD.
The past, present, and future of telemedicine for Parkinson's disease
Achey, Meredith A. , Aldred, Jason , Aljehani, Noha, Bloem, Bastiaan R. , Biglan, Kevin , Chan, Piu, Cubo, Esther , Dorsey, E. Ray , Guttman, Mark, Hassan, Anhar , Khandhar, Suketu M., Spindler, Meredith , Haak, Pieter van den , Walker, Richard , Wilkinson, Jayne , Force, on behalf of the International Parkinson and Movement Disorder Society Telemedicine Task, Goetz, Christopher G. , Mari, Zoltan K. , Tanner, Caroline M. , Force, on behalf of the International Parkinson and Movement Disorder Society Telemedicine Task

Movement Disorders | May 17, 2014 | Volume: 29 | Issue: 7 | Pages: 871-883

10.1002/mds.25903 | PMID 24838316 Get It

ABSTRACT Travel distance, growing disability, and uneven distribution of doctors limit access to care for most Parkinson's disease (PD) patients worldwide. Telemedicine, the use of telecommunications technology to deliver care at a distance, can help overcome these barriers. In this report, we describe the past, present, and likely future applications of telemedicine to PD. Historically, telemedicine has relied on expensive equipment to connect single patients to a specialist in pilot programs in wealthy nations. As the cost of video conferencing has plummeted, these efforts have expanded in scale and scope, now reaching larger parts of the world and extending the focus from care to training of remote providers. Policy, especially limited reimbursement, currently hinders the growth and adoption of these new care models. As these policies change and technology advances and spreads, the following will likely develop: integrated care networks that connect patients to a wide range of providers; education programs that support patients and health care providers; and new research applications that include remote monitoring and remote visits. Together, these developments will enable more individuals with PD to connect to care, increase access to expertise for patients and providers, and allow more‐extensive, less‐expensive participation in research. © 2014 International Parkinson and Movement Disorder Society
Mycobacterium arupense Flexor Tenosynovitis: Case Report and Review of Antimicrobial Susceptibility Profiles for 40 Clinical Isolates
Beam, Elena , Vasoo, Shawn , Simner, Patricia J. , Rizzo, Marco , Mason, Erin L., Walker, Randall C., Deml, Sharon M., Brown‐Elliott, Barbara A. , Wallace, Richard J. , Wengenack, Nancy L. , Sia, Irene G. , Beam, Elena , Sia, Irene G

Journal of Clinical Microbiology | May 1, 2014 | Volume: 52 | Issue: 7 | Pages: 2706-2708

10.1128/jcm.00277-14 | PMID 24789193 Get It

ABSTRACT We describe a case of chronic tenosynovitis in the hand of a 58-year-old cattle farmer. Surgical biopsy specimens grew Mycobacterium arupense . The patient responded to surgery and antimicrobial therapy based on in vitro susceptibility testing. The antimicrobial susceptibility profiles of the isolate from this patient and 39 additional clinical isolates are presented.
Mucormycosis in Patients with Inflammatory Bowel Disease: Case Series and Review of the Literature
Abidi, Maheen Z. , Weiland, Tim, Dyken, Irminne Van, Tande, Aaron J. , Tosh, Pritish K. , Walker, Randall C., Coelho-Prabhu, Nayantara , Tande, Aaron , Cummins, Nathan W. , Coelho–Prabhu, Nayantara , Hargreaves, James , Abidi, Maheen Z , Abidi, Maheen Z

Case Reports in Medicine | April 27, 2014 | Volume: 2014 | Issue: No issue available | Pages: 1-7

10.1155/2014/637492 | PMID 24872818 Get It

Mucormycosis is a rare and often fatal invasive fungal infection mostly seen in immune-compromised individuals. A high index of clinical suspicion is necessary, so that effective preemptive therapy can be started, as timely intervention is crucial. In this series we present three cases of invasive mucormycosis in patients with underlying inflammatory bowel disease that had received therapy with immunomodulators prior to the infection. All three had varied clinical manifestations. We also review the literature of invasive mucormycosis in patients with inflammatory bowel disease.
Conversion From Sildenafil to Tadalafil
Frantz, Robert P. , Durst, Louise A., Franco, Verónica , McDevitt, Susanne , Walker, Susan , Durst, Louise, Burger, Charles D. , Oudiz, Ronald J. , Bourge, Robert C. , Waxman, Aaron B. , Frantz, Robert P

Journal of Cardiovascular Pharmacology and Therapeutics | April 18, 2014 | Volume: 19 | Issue: 6 | Pages: 550-557

10.1177/1074248414528066 | PMID 24742768 Get It

Purpose: Among phosphodiesterase type 5 inhibitors, tadalafil offers clinicians a once-daily alternative to 3 times daily sildenafil for the treatment of pulmonary arterial hypertension (PAH). This study assessed the safety and patient satisfaction with conversion from sildenafil to tadalafil. Methods: In this multicenter, prospective, 6-month study, patients with PAH were instructed to take their last dose of sildenafil in the evening and initiate tadalafil 40 mg/d the next morning. Patients completed the Treatment Satisfaction Questionnaire for Medication at baseline and 30, 90, and 180 days after transition to assess PAH symptoms and patient satisfaction. Safety was assessed on the basis of recorded adverse events (AEs). Results: Of the 35 patients who met the study criteria, 56% were receiving ≥2 PAH therapies. At the time of transition, the sildenafil dose ranged from 40 to 300 mg/d, with 20% of the patients on >20 mg of sildenafil 3 times daily. Transition to tadalafil was generally well tolerated, and the incidence of common AEs, except for myalgia, appeared to decrease over time on tadalafil therapy. Five (14%) patients switched back to sildenafil. A greater percentage of patients were satisfied than were dissatisfied after conversion to tadalafil (55% vs 19% at 90 days), while 26% felt about the same degree of satisfaction. Conversion to tadalafil resulted in significant improvement in patient ratings of therapy convenience. Conclusions: Transition of patients from sildenafil to tadalafil was usually well tolerated, with improved convenience and may enhance treatment satisfaction.
Endemic fungal infections in solid organ and hematopoietic cell transplant recipients enrolled in the Transplant‐Associated Infection Surveillance Network (TRANSNET)
Kauffman, Carol A., Freifeld, Alison G. , Andes, David R. , Herwaldt, Loreen A. , Walker, Randall C., Alexander, Barbara D. , Anaissie, E., Benedict, Kaitlin , Ito, James I., Knapp, Katherine M. , Lyon, G. Marshall, Marr, Kieren A. , Morrison, V. A., Park, B. J., Schuster, Mindy G. , Chiller, Tom , Pappas, Peter G. , Baddley, John W. , Patterson, Thomas F.

Transplant Infectious Disease | March 4, 2014 | Volume: 16 | Issue: 2 | Pages: 213-224

10.1111/tid.12186 | PMID 24589027 Get It

AbstractBackgroundInvasive fungal infections are a major cause of morbidity and mortality among solid organ transplant (SOT) and hematopoietic cell transplant (HCT) recipients, but few data have been reported on the epidemiology of endemic fungal infections in these populations.MethodsFifteen institutions belonging to the Transplant‐Associated Infection Surveillance Network prospectively enrolled SOT and HCT recipients with histoplasmosis, blastomycosis, or coccidioidomycosis occurring between March 2001 and March 2006.ResultsA total of 70 patients (64 SOT recipients and 6 HCT recipients) had infection with an endemic mycosis, including 52 with histoplasmosis, 9 with blastomycosis, and 9 with coccidioidomycosis. The 12‐month cumulative incidence rate among SOT recipients for histoplasmosis was 0.102%. Occurrence of infection was bimodal; 28 (40%) infections occurred in the first 6 months post transplantation, and 24 (34%) occurred between 2 and 11 years post transplantation. Three patients were documented to have acquired infection from the donor organ. Seven SOT recipients with histoplasmosis and 3 with coccidioidomycosis died (16%); no HCT recipient died.ConclusionsThis 5‐year multicenter prospective surveillance study found that endemic mycoses occur uncommonly in SOT and HCT recipients, and that the period at risk extends for years after transplantation.
Campylobacter Prosthetic Joint Infection
Vasoo, Shawn , Schwab, Jeramy J., Cunningham, Scott A. , Robinson, Trisha J., Cass, Joseph R., Berbari, Elie F. , Walker, Randall C., Osmon, Douglas R. , Patel, Robin , Patel, Robin , Cunningham, Scott A

Journal of Clinical Microbiology | February 13, 2014 | Volume: 52 | Issue: 5 | Pages: 1771-1774

10.1128/jcm.03572-13 | PMID 24523462 Get It

ABSTRACTA 75-year-old man was diagnosed with probableCampylobacter jejuniprosthetic knee infection after a diarrheal illness. Joint aspirate and operative cultures were negative, but PCR of prosthesis sonicate fluid was positive, as was stool culture. Nineteen additional cases ofCampylobacterprosthetic joint infection reported in the literature are reviewed.