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1.
Negot J ; 36(4): 497-534, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-38607846

RESUMO

Urgent responses to the COVID-19 pandemic depend on increased collaboration and sharing of data, models, and resources among scientists and researchers. In many scientific fields and disciplines, institutional norms treat data, models, and resources as proprietary, emphasizing competition among scientists and researchers locally and internationally. Concurrently, long-standing norms of open data and collaboration exist in some scientific fields and have accelerated within the last two decades. In both cases-where the institutional arrangements are ready to accelerate for the needed collaboration in a pandemic and where they run counter to what is needed-the rules of the game are "on the table" for institutional-level renegotiation. These challenges to the negotiated order in science are important, difficult to study, and highly consequential. The COVID-19 pandemic offers something of a natural experiment to study these dynamics. Preliminary findings highlight: the chilling effect of politics where open sharing could be expected to accelerate; the surprisingly conservative nature of contests and prizes; open questions around whether collaboration will persist following an inflection point in the pandemic; and the strong potential for launching and sustaining pre-competitive initiatives.

3.
Health Qual Life Outcomes ; 11: 55, 2013 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-23548052

RESUMO

BACKGROUND: While arthritis is the most common cause of disability, non-Hispanic blacks and Hispanics experience worse arthritis impact despite having the same or lower prevalence of arthritis compared to non-Hispanic whites. People with arthritis who exercise regularly have less pain, more energy, and improved sleep, yet arthritis is one of the most common reasons for limiting physical activity. Mind-body interventions, such as yoga, that teach stress management along with physical activity may be well suited for investigation in both osteoarthritis and rheumatoid arthritis. Yoga users are predominantly white, female, and college educated. There are few studies that examine yoga in minority populations; none address arthritis. This paper presents a study protocol examining the feasibility and acceptability of providing yoga to an urban, minority population with arthritis. METHODS/DESIGN: In this ongoing pilot study, a convenience sample of 20 minority adults diagnosed with either osteoarthritis or rheumatoid arthritis undergo an 8-week program of yoga classes. It is believed that by attending yoga classes designed for patients with arthritis, with racially concordant instructors; acceptability of yoga as an adjunct to standard arthritis treatment and self-care will be enhanced. Self-care is defined as adopting behaviors that improve physical and mental well-being. This concept is quantified through collecting patient-reported outcome measures related to spiritual growth, health responsibility, interpersonal relations, and stress management. Additional measures collected during this study include: physical function, anxiety/depression, fatigue, sleep disturbance, social roles, and pain; as well as baseline demographic and clinical data. Field notes, quantitative and qualitative data regarding feasibility and acceptability are also collected. Acceptability is determined by response/retention rates, positive qualitative data, and continuing yoga practice after three months. DISCUSSION: There are a number of challenges in recruiting and retaining participants from a community clinic serving minority populations. Adopting behaviors that improve well-being and quality of life include those that integrate mental health (mind) and physical health (body). Few studies have examined offering integrative modalities to this population. This pilot was undertaken to quantify measures of feasibility and acceptability that will be useful when evaluating future plans for expanding the study of yoga in urban, minority populations with arthritis. TRIAL REGISTRATION: ClinicalTrials.gov: NCT01617421.


Assuntos
Artrite/etnologia , Pesquisa Participativa Baseada na Comunidade , Comportamentos Relacionados com a Saúde/etnologia , Autocuidado/métodos , Yoga , Adulto , Artrite/diagnóstico , Artrite/terapia , Feminino , Humanos , Maryland , Terapias Mente-Corpo , National Institute of Arthritis and Musculoskeletal and Skin Diseases (U.S.) , Seleção de Pacientes , Indicadores de Qualidade em Assistência à Saúde , Projetos de Pesquisa , Fatores Socioeconômicos , Inquéritos e Questionários , Resultado do Tratamento , Estados Unidos
4.
PLoS One ; 16(1): e0244187, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33444321

RESUMO

Rheumatoid arthritis (RA) is a systemic and incurable autoimmune disease characterized by chronic inflammation in synovial lining of joints. To identify the signaling pathways involved in RA, its disease activity, and treatment response, we adapted a systems immunology approach to simultaneously quantify 42 signaling nodes in 21 immune cell subsets (e.g., IFNα→p-STAT5 in B cells) in peripheral blood mononuclear cells (PBMC) from 194 patients with longstanding RA (including 98 patients before and after treatment), and 41 healthy controls (HC). We found multiple differences between patients with RA compared to HC, predominantly in cytokine-induced Jak/STAT signaling in many immune cell subsets, suggesting pathways that may be associated with susceptibility to RA. We also found that high RA disease activity, compared to low disease activity, was associated with decreased (e.g., IFNα→p-STAT5, IL-10→p-STAT1) or increased (e.g., IL-6→STAT3) response to stimuli in multiple cell subsets. Finally, we compared signaling in patients with established, refractory RA before and six months after initiation of methotrexate (MTX) or TNF inhibitors (TNFi). We noted significant changes from pre-treatment to post-treatment in IFNα→p-STAT5 signaling and IL-10→p-STAT1 signaling in multiple cell subsets; these changes brought the aberrant RA signaling profiles toward those of HC. This large, comprehensive functional signaling pathway study provides novel insights into the pathogenesis of RA and shows the potential of quantification of cytokine-induced signaling as a biomarker of disease activity or treatment response.


Assuntos
Artrite Reumatoide/patologia , Interferon-alfa/farmacologia , Interleucina-10/farmacologia , Fator de Transcrição STAT1/metabolismo , Fator de Transcrição STAT3/metabolismo , Transdução de Sinais/efeitos dos fármacos , Abatacepte/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Artrite Reumatoide/tratamento farmacológico , Artrite Reumatoide/metabolismo , Biomarcadores/metabolismo , Estudos de Casos e Controles , Feminino , Humanos , Leucócitos Mononucleares/citologia , Leucócitos Mononucleares/metabolismo , Masculino , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Fosforilação , Índice de Gravidade de Doença
5.
Am J Public Health ; 96(11): 1996-2001, 2006 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17018826

RESUMO

OBJECTIVES: We consulted with representatives of an urban community in Washington, DC, about the ethics of clinical research involving residents of the community with limited access to health care. METHODS: A semistructured community consultation was conducted with core members of the Health Partnership Program of the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Three research case examples were discussed; questions and probes (a predetermined question or series of questions used to further investigate or follow-up a response) guided the discussion. RESULTS: The community representatives who took part in the consultation were supportive of research and appreciated the opportunity to be heard. They noted the importance of respecting the circumstances, values, needs, and welfare of research participants; supported widely representative recruitment strategies; and cited the positive benefits of providing care or treatment to participants. Monitoring participants' welfare and ensuring care at a study's end were emphasized. Trust was a central theme; participants suggested several trust-enhancing strategies, including full disclosure of information and the involvement of advocates, physicians, and trusted church members. CONCLUSIONS: Several important strategies emerged for conducting ethical research in urban communities whose residents have limited access to health care.


Assuntos
Pesquisa Biomédica/ética , Redes Comunitárias/organização & administração , Participação da Comunidade , Acessibilidade aos Serviços de Saúde/economia , Pessoas sem Cobertura de Seguro de Saúde/etnologia , National Institutes of Health (U.S.)/organização & administração , Saúde da População Urbana , Populações Vulneráveis/etnologia , Negro ou Afro-Americano , District of Columbia , Necessidades e Demandas de Serviços de Saúde , Hispânico ou Latino , Humanos , Consentimento Livre e Esclarecido , Estudos de Casos Organizacionais , Seleção de Pacientes/ética , Valores Sociais , Seguridade Social , Confiança , Estados Unidos
6.
Clin Transl Med ; 2(1): 2, 2013 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-23369569

RESUMO

BACKGROUND: Despite progress in translational research, we are still falling short in developing the innovative medicines required to address major public health needs. Furthermore, the failure rate, time, and cost required for registration of a new drug are pushing the economics of the industry to the breaking point. New models of drug development based on collaborative endeavours are badly needed to improve this dire situation. FINDINGS: In 2004, the US Food and Drug Administration (FDA) introduced the Critical Path Initiative with the intent of modernizing drug development by implementing public-private partnerships (PPP) to share data, expertise, and resources. In response to FDA's initiative, in the following year the non-profit Critical Path Institute (C-Path) was formed. At the same time, the National Institutes of Health (NIH) Public-Private Partnership program was established. In Europe, the Innovative Medicines Initiative (IMI) supported jointly by the European Union and the European Federation of Pharmaceutical Industries and Associations was launched in 2008. These independent efforts have a common long-term objective, namely to facilitate the emergence of innovative medicines by developing new tools for drug discovery, new indicators for drug efficacy or safety, and new approaches for patient stratification. Herein, we present evidence that PPP already exert a positive impact on the drug development process. CONCLUSIONS: Public-private partnerships represent attractive means to leverage resources dispersed across industry, academia, and voluntary health organizations in order to address multiple challenges of drug development in an era of constrained resources and increased regulatory pressure.

7.
Pediatrics ; 132(5): e1384-94, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24144710

RESUMO

The proven effectiveness of biologics and other immunomodulatory products in inflammatory rheumatic diseases has resulted in their widespread use as well as reports of potential short- and long-term complications such as infection and malignancy. These complications are especially worrisome in children who often have serial exposures to multiple immunomodulatory products. Post-marketing surveillance of immunomodulatory products in juvenile idiopathic arthritis (JIA) and pediatric systemic lupus erythematosus is currently based on product-specific registries and passive surveillance, which may not accurately reflect the safety risks for children owing to low numbers, poor long-term retention, and inadequate comparators. In collaboration with the US Food and Drug Administration (FDA), patient and family advocacy groups, biopharmaceutical industry representatives and other stakeholders, the Childhood Arthritis and Rheumatology Research Alliance (CARRA) and the Duke Clinical Research Institute (DCRI) have developed a novel pharmacosurveillance model (CARRA Consolidated Safety Registry [CoRe]) based on a multicenter longitudinal pediatric rheumatic diseases registry with over 8000 participants. The existing CARRA infrastructure provides access to much larger numbers of subjects than is feasible in single-product registries. Enrollment regardless of medication exposure allows more accurate detection and evaluation of safety signals. Flexibility built into the model allows the addition of specific data elements and safety outcomes, and designation of appropriate disease comparator groups relevant to each product, fulfilling post-marketing requirements and commitments. The proposed model can be applied to other pediatric and adult diseases, potentially transforming the paradigm of pharmacosurveillance in response to the growing public mandate for rigorous post-marketing safety monitoring.


Assuntos
Sistema de Registros , Doenças Reumáticas/tratamento farmacológico , Doenças Reumáticas/epidemiologia , Produtos Biológicos/efeitos adversos , Humanos , Sistema de Registros/normas , Estados Unidos , United States Food and Drug Administration/normas
8.
Prog Community Health Partnersh ; 6(4): 405-15, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23221285

RESUMO

BACKGROUND: Disparities in the incidence, prevalence, severity, care, and outcomes for rheumatic diseases exist among racial and ethnic groups compared with White Americans. OBJECTIVE: This paper describes a community-based participatory research (CBPR) approach engaging researchers, community leaders, and patients in purposeful dialogues related to the implementation of health behavior research in an urban rheumatic disease clinic. METHODS: Seven focused discussions were led in either English or Spanish. Discussions were audiotaped and transcribed verbatim. RESULTS: Six community leaders and nine patients participated in the seven scheduled focused discussions. Transcripts uncovered five major themes that assisted with study design: trust, patient-provider relationship, study implementation suggestions, decreased functional capacity, and access to healthcare. CONCLUSIONS: Engaging community partners and patients in informal and formal discussions from early phases of research design through implementation, followed by systematic application of these insights, may serve to accelerate the potential for translation from findings into improved clinical practice and optimal outcomes.


Assuntos
Participação da Comunidade/métodos , Pesquisa Participativa Baseada na Comunidade/organização & administração , Comportamentos Relacionados com a Saúde/etnologia , Disparidades nos Níveis de Saúde , Doenças Reumáticas/etnologia , Adulto , Idoso , Feminino , Acessibilidade aos Serviços de Saúde/organização & administração , Pesquisa sobre Serviços de Saúde , Humanos , Liderança , Masculino , Pessoa de Meia-Idade , Pacientes Ambulatoriais , Relações Profissional-Paciente , Confiança , População Urbana
9.
Arthritis Res Ther ; 13(1): R1, 2011 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-21208400

RESUMO

INTRODUCTION: Rheumatic diseases are among the most common and debilitating health problems in the United States. These diseases are chronic, can result in severe decrements of physical and psychosocial functioning and affect patients' overall quality of life. A consensus regarding the best patient outcomes to be measured in randomized, controlled trials and prospective natural history studies is essential to provide best estimates of efficacy and safety of interventions across diverse patient populations. METHODS: Face-to-face English- and Spanish-language cognitive interviews were conducted among urban Hispanic and African American patients with rheumatic disease to develop a questionnaire booklet. Six measures validating patient-reported outcomes were included: the Arthritis Self-Efficacy Scale, the Stanford Health Assessment Questionnaire Disability Index, the Wong-Baker Faces Pain Scale, the Short Acculturation Scale, the Center for Epidemiologic Studies Depression Scale and the Inventory of Complementary and Alternative Medicine Practices. A sample of patients (n = 15) attending the National Institute of Arthritis and Musculoskeletal and Skin Diseases Community Health Center participated in the initial interviews. Revised measures were further tested for reliability in a separate sample of patients (n = 109) upon enrollment at the health center. RESULTS: Cognitive interviews provided feedback for questionnaire modifications and methods to enhance content validity and data quality, including discarding redundant questions, providing visual aids and concrete examples when appropriate and increasing the use of racially and ethnically concordant interviewers. The cognitive interviews further elucidated that some contextual assumptions and language usage in the original questionnaires may not have taken each respondent's environmental and sociocultural context into consideration. Internal reliability for previously tested measures remained high (Cronbach's α = 0.87-0.94). CONCLUSIONS: Cognitive interviewing techniques are useful in a diverse sample of racial and ethnic minority patients with rheumatic disease as a method to assess the content validity of the specific outcome measures selected. The data collection approaches and methods described here ultimately enhance data quality. Vigilance is required in the selection of outcome measures in studies or in practice, particularly with each new language translation and/or culturally unique or diverse sample.


Assuntos
Entrevistas como Assunto/métodos , Área Carente de Assistência Médica , Avaliação de Resultados em Cuidados de Saúde/métodos , Doenças Reumáticas , Compreensão , Humanos , Idioma , Inquéritos e Questionários
10.
Artigo em Inglês | MEDLINE | ID: mdl-19275685

RESUMO

No new drugs have been approved for the treatment of systemic lupus erythematosus (SLE) by the Food and Drug Administration for the last 30 years. One barrier has been the lack of validated biomarkers and surrogate endpoints. Validation of SLE biomarkers in the past have been methodologically flawed. We put forth a conceptual framework and five critical criterion for validating putative biomarkers and bio-surrogates in this heterogeneous multi-system disease with protean manifestations. Using the example of a putative biomarker for end-stage lupus nephritis, we performed computer simulations for planning a biomarker bio-repository to support the validation process. "Random time window" sampling where a biomarker is obtained in an interval randomly selected from the total follow-up time for that subject creates survival bias. This can be avoided by the "fixed calendar window" design, in which biomarkers are measured within the same, pre-specified period for all cohort members who remain at risk during that period. In lupus nephritis where the incidence rate of end-stage renal disease is relatively low, to accumulate 300 instances of end-stage renal disease, at risk patients would have to be followed for about 5,000 person-years, implying 500 subjects followed, on average, for about 10 years. Increasing the number of biomarker determinations per subject from one to five reduces the required number of subjects by 10-15%, while further increases in the number of observations per subject yielded much smaller gains. The large numbers of subjects required for a bio-repository, makes it essential to maximize the efficiency of study designs and analyses and provides the strongest rationale for collaboration and the use of standardized measures to ensure comparability.


Assuntos
Lúpus Eritematoso Sistêmico/tratamento farmacológico , Biomarcadores , Simulação por Computador , Humanos
13.
Biol Blood Marrow Transplant ; 12(2): 126-37, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16443511

RESUMO

Biology-based markers that can be used to confirm the diagnosis of chronic graft-versus-host disease (GVHD) or monitor progression of the disease could help in the evaluation of new therapies. Biomarkers have been defined as any characteristic that is objectively measured and evaluated as an indicator of a normal biologic or pathogenic process, a pharmacologic response to a therapeutic intervention, or a surrogate end point intended to substitute for a clinical end point. The following applications of biomarkers could be useful in chronic GVHD clinical trials or management: (1) predicting response to therapy; (2) measuring disease activity and distinguishing irreversible damage from continued disease activity; (3) predicting the risk of developing chronic GVHD; (4) diagnosing chronic GVHD: (5) predicting the prognosis of chronic GVHD; (6) evaluating the balance between GVHD and graft-versus-leukemia effects (graft-versus-leukemia or GVT); and (7) serving as a surrogate end point for therapeutic response. Such biomarkers can be identified by either hypothesis-driven testing or by high-throughput discovery-based methods. To date, no validated biomarkers have been established for chronic GVHD, although several candidate biomarkers have been identified from limited hypothesis-driven studies. Both approaches have merit and should be pursued. The consistent treatment and standardized documentation needed to support biomarker studies are most likely to be satisfied in prospective clinical trials.


Assuntos
Biomarcadores/metabolismo , Doença Enxerto-Hospedeiro , Efeito Enxerto vs Leucemia , Doença Crônica , Ensaios Clínicos como Assunto , Doença Enxerto-Hospedeiro/diagnóstico , Doença Enxerto-Hospedeiro/metabolismo , Doença Enxerto-Hospedeiro/terapia , Guias como Assunto , Humanos , Prognóstico
14.
Biol Blood Marrow Transplant ; 12(3): 252-66, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16503494

RESUMO

The lack of standardized criteria for quantitative measurement of therapeutic response in clinical trials poses a major obstacle for the development of new agents in chronic graft-versus-host disease (GVHD). This consensus document was developed to address several objectives for response criteria to be used in chronic GVHD-related clinical trials. The proposed measures should be practical for use both by transplantation and nontransplantation medical providers, adaptable for use in adults and in children, and focused on the most important chronic GVHD manifestations. The measures should also give preference to quantitative, rather than semiquantitative, measures; capture information regarding signs, symptoms, and function separately from each other; and use validated scales whenever possible to demonstrate improved patient outcomes and meet requirements for regulatory approval of novel agents. Based on these criteria, we propose a set of measures to be considered for use in clinical trials, and forms for data collection are provided (). Measures should be made at 3-month intervals and whenever major changes are made in treatment. Provisional definitions of complete response, partial response, and progression are proposed for each organ and for overall outcomes. The proposed response criteria are based on current expert consensus opinion and are intended to improve consistency in the conduct and reporting of chronic GVHD trials, but their use remains to be demonstrated in practice.


Assuntos
Conferências para Desenvolvimento de Consenso de NIH como Assunto , Doença Enxerto-Hospedeiro/patologia , Doença Enxerto-Hospedeiro/terapia , Prontuários Médicos , Adolescente , Adulto , Criança , Pré-Escolar , Doença Crônica , Ensaios Clínicos como Assunto/normas , Feminino , Humanos , Masculino , Prontuários Médicos/normas , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento , Estados Unidos
15.
Biol Blood Marrow Transplant ; 11(12): 945-56, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16338616

RESUMO

This consensus document is intended to serve 3 functions. First, it standardizes the criteria for diagnosis of chronic graft-versus-host disease (GVHD). Second, it proposes a new clinical scoring system (0-3) that describes the extent and severity of chronic GVHD for each organ or site at any given time, taking functional impact into account. Third, it proposes new guidelines for global assessment of chronic GVHD severity that are based on the number of organs or sites involved and the degree of involvement in affected organs (mild, moderate, or severe). Diagnosis of chronic GVHD requires the presence of at least 1 diagnostic clinical sign of chronic GVHD (e.g., poikiloderma or esophageal web) or the presence of at least 1 distinctive manifestation (e.g., keratoconjunctivitis sicca) confirmed by pertinent biopsy or other relevant tests (e.g., Schirmer test) in the same or another organ. Furthermore, other possible diagnoses for clinical symptoms must be excluded. No time limit is set for the diagnosis of chronic GVHD. The Working Group recognized 2 main categories of GVHD, each with 2 subcategories. The acute GVHD category is defined in the absence of diagnostic or distinctive features of chronic GVHD and includes (1) classic acute GVHD occurring within 100 days after transplantation and (2) persistent, recurrent, or late acute GVHD (features of acute GVHD occurring beyond 100 days, often during withdrawal of immune suppression). The broad category of chronic GVHD includes (1) classic chronic GVHD (without features or characteristics of acute GVHD) and (2) an overlap syndrome in which diagnostic or distinctive features of chronic GVHD and acute GVHD appear together. It is currently recommended that systemic therapy be considered for patients who meet criteria for chronic GVHD of moderate to severe global severity.


Assuntos
Ensaios Clínicos como Assunto , Conferências para Desenvolvimento de Consenso de NIH como Assunto , Doença Enxerto-Hospedeiro/diagnóstico , National Institutes of Health (U.S.) , Doença Crônica , Consenso , Diagnóstico Diferencial , Feminino , Doença Enxerto-Hospedeiro/patologia , Humanos , Masculino , Estados Unidos
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