52 research outputs found
Restoranide külastusi registreeriva algoritmi valideerimine
Selleks, et kujundada autentset pilti inimeste üldisest tervisekäitumisest ja erinevate külastatud restoranide olemusest, on automaatse lahendusena loodud telefoni GPS-signaali analüüsiv algoritm. Bakalaureusetöö eesmärgiks on olemasoleva külastusi registreeriva algoritmi valideerimine 2015. aastal Tartus uuritud inimeste põhjal. Algoritmi korrektsust kontrollitakse selle poolt registreeritud ning isikute endi poolt raporteeritud andmete vastavusega. Inimeste toidukäitumise uurimiseks analüüsitakse valideerituid andmeid. Täpsemalt uuritakse ka indiviidide restoranide külastusi, et saada täpsem kirjeldus nende tervisekäitumisele
Biosimilars for the Treatment of Chronic Inflammatory Diseases: A Systematic Review of Published Evidence
BACKGROUND: Clinicians are required to assimilate, critically evaluate, and extrapolate information to support appropriate use of biosimilars across indications. OBJECTIVES: The objective of this study was to systematically collate all published data in order to assess the weight (quantity and quality) of available evidence for each molecule and inform and support healthcare decision-making in chronic inflammatory diseases. METHODS: MEDLINE(®), EMBASE(®), and ISI Web of Science(®) were searched to September 2015. Selected conference proceedings were searched from 2012 to July 2015. Studies disclosing biosimilars with unique identifiers were categorized by originator, study type, and indication. Risk of bias assessments were performed. Intended copies were differentiated as commercially available agents without evidence of rigorous comparative biosimilarity evaluations. RESULTS: Proposed biosimilars for adalimumab, etanercept, infliximab, and rituximab are reported in the published literature. Across indications, approved biosimilars infliximab CT-P13, SB2, and etanercept SB4 have published studies involving the largest number of patients or healthy subjects (n = 1405, 743, and 734, respectively), mostly in rheumatoid arthritis. At data cut-off, only CT-P13 had published data in ankylosing spondylitis (n = 250; randomized control trial) and ulcerative colitis/Crohn’s disease (n = 336; observational studies). Published data were not available for ongoing studies in psoriasis patients. Four intended copies were identified in published studies (total: n = 1430; n = 1372 in observational studies). Thematic analysis of non-empirical publications showed that indication extrapolation remains an issue, particularly for gastroenterologists. CONCLUSIONS: While most agents display a moderate to high degree of similarity to their originator in the published studies identified, large discrepancies persist in the overall amount and type of data available in the public domain. Significant gaps exist particularly for intended copies, reinforcing the need to maintain a clear differentiation between these molecules and true biosimilars. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s40259-016-0201-6) contains supplementary material, which is available to authorized users
Efficacy and Safety Outcomes for Originator TNF Inhibitors and Biosimilars in Rheumatoid Arthritis and Psoriasis Trials: A Systematic Literature Review
Objective Regulatory approval of biosimilar versions of originator biotherapeutics requires that new biological products be highly similar to originator products, with no clinically meaningful differences in safety, purity, and potency. In some trials of biosimilars of tumor necrosis factor inhibitors for the treatment of rheumatoid arthritis (RA) and plaque psoriasis (PsO), pre-specified margins for efficacy and safety have been met, but differences in treatment responses between pivotal originator trials and biosimilar trials have been noted. The objective of this systematic review was to examine these differences. Methods Searches were conducted to identify comparative randomized clinical trials of approved or proposed biosimilars of adalimumab, etanercept, and infliximab. Results Of 83 publications identified, 16 publications were included for analysis (RA: originators, n = 5; biosimilars, n = 6; PsO: originators, n = 2; biosimilars, n = 3). American College of Rheumatology 20% response rates were higher among patients with RA receiving originator biologics and biosimilars in biosimilar trials than among patients receiving the originator biologics in pivotal trials. In etanercept studies in PsO, a difference was observed in Psoriasis Area and Severity Index 75% response rates between biosimilar and pivotal trials. Insufficient efficacy data were available from adalimumab and infliximab biosimilar studies in PsO to determine any differences in treatment responses between pivotal and biosimilar studies. Conclusions Observed differences in treatment response rates between pivotal originator trials and trials of originator biologics and their respective biosimilars may be attributable to fundamental differences in study design and/or baseline patient characteristics, which require further analysis
Canakinumab relieves symptoms of acute flares and improves health-related quality of life in patients with difficult-to-treat Gouty Arthritis by suppressing inflammation: results of a randomized, dose-ranging study
INTRODUCTION: We report the impact of canakinumab, a fully human anti-interleukin-1β monoclonal antibody, on inflammation and health-related quality of life (HRQoL) in patients with difficult-to-treat Gouty Arthritis.
METHODS: In this eight-week, single-blind, double-dummy, dose-ranging study, patients with acute Gouty Arthritis flares who were unresponsive or intolerant to--or had contraindications for--non-steroidal anti-inflammatory drugs and/or colchicine were randomized to receive a single subcutaneous dose of canakinumab (10, 25, 50, 90, or 150 mg) (N = 143) or an intramuscular dose of triamcinolone acetonide 40 mg (N = 57). Patients assessed pain using a Likert scale, physicians assessed clinical signs of joint inflammation, and HRQoL was measured using the 36-item Short-Form Health Survey (SF-36) (acute version).
RESULTS: At baseline, 98% of patients were suffering from moderate-to-extreme pain. The percentage of patients with no or mild pain was numerically greater in most canakinumab groups compared with triamcinolone acetonide from 24 to 72 hours post-dose; the difference was statistically significant for canakinumab 150 mg at these time points (P < 0.05). Treatment with canakinumab 150 mg was associated with statistically significant lower Likert scores for tenderness (odds ratio (OR), 3.2; 95% confidence interval (CI), 1.27 to 7.89; P = 0.014) and swelling (OR, 2.7; 95% CI, 1.09 to 6.50, P = 0.032) at 72 hours compared with triamcinolone acetonide. Median C-reactive protein and serum amyloid A levels were normalized by seven days post-dose in most canakinumab groups, but remained elevated in the triamcinolone acetonide group. Improvements in physical health were observed at seven days post-dose in all treatment groups; increases in scores were highest for canakinumab 150 mg. In this group, the mean SF-36 physical component summary score increased by 12.0 points from baseline to 48.3 at seven days post-dose. SF-36 scores for physical functioning and bodily pain for the canakinumab 150 mg group approached those for the US general population by seven days post-dose and reached norm values by eight weeks post-dose.
CONCLUSIONS: Canakinumab 150 mg provided significantly greater and more rapid reduction in pain and signs and symptoms of inflammation compared with triamcinolone acetonide 40 mg. Improvements in HRQoL were seen in both treatment groups with a faster onset with canakinumab 150 mg compared with triamcinolone acetonide 40 mg.
TRIAL REGISTRATION: clinicaltrials.gov: NCT00798369
Monoclonal Antibody and Fusion Protein Biosimilars Across Therapeutic Areas: A Systematic Review of Published Evidence
Finantsteemaliste artiklite lihtsustamine
Paljud finantsteemalised artiklid sisaldavad valdkonnaspetsiifilist sõnavara, mistõttu võivad need tavalugejale olla keerulised mõista. Magistritöö raames uuritakse tihedalt tarbitavate allikate artiklite põhjal, kui palju keerulist sõnavara neis sisaldub ning kui edukalt on keeletehnoloogia vahendite abil võimalik teksti lugejale lihtsamaks teha. Artiklites märgendati väliste lugejate poolt nende silmis keerulised sõnad, mida lihtsustatakse kahe meetodiga: teksti tõlkimine Tartu Ülikooli Neurotõlke abil ning keeruliste sõnade sünonüümimine, kasutades EstNLTK Wordneti sünohulkasid ning eeltreenitud skip-gram mudelit. Analüüs näitas, et vaadeldavates artiklites moodustasid keerulised sõnad ligi 2% kõikidest sõnadest. Nende lihtsustamisel olid tõlkemeetodi tulemused üldiselt edukamad, kuna sünonüümimise puhul ei olnud keerulise sõna sünonüüm alati lihtsamini mõistetav või siis ei leidunud Wordnetis vaadeldavale sõnale ühtegi sünonüümi
Medical conditions in fibromyalgia patients and their relationship to pregabalin efficacy: pooled analysis of Phase III clinical trials
The Language of Biosimilars: Clarification, Definitions, and Regulatory Aspects
Biologic therapies have revolutionized treatment of a number of diseases. Patents and exclusivity for a number of biologics are expiring. This has created the opportunity for the development and approval of biosimilars. Biosimilars are biologic products developed using a step-wise approach to result in a biologic that demonstrates no clinically meaningful differences in terms of quality attributes, efficacy, safety, and immunogenicity compared with an existing licensed, originator biologic. As more biosimilars receive regulatory approval and reach the market, it is increasingly important for healthcare providers to understand the terminology about biosimilars. To help support healthcare providers, the aim of this manuscript is to (i) support understanding of the language of biosimilars, (ii) review the regulatory and manufacturing processes employed in developing a biosimilar, and (iii) provide information for clinical decisions about the use of biosimilars. Because biologics are large, structurally complex proteins, biosimilars cannot be considered generic equivalents to the originator. Biosimilars are developed and evaluated using rigorous processes involving detailed analytical and functional studies, nonclinical assessments, and clinical trials. Clinical studies evaluating the potential biosimilar are designed differently than those for approval of a novel biologic since the aim is merely to confirm similar efficacy and safety and not to demonstrate clinical benefit per se. Extrapolation of data may be used to grant approval of biosimilars in indications not directly evaluated in clinical studies using the biosimilar.status: publishe
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