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  • 1
    Electronic Resource
    Electronic Resource
    A phenylbutazone dose-finding study in rheumatoid arthritis (1983)
    Springer
    European journal of clinical pharmacology 24 (1983), S. 773-776 
    Details
    ISSN: 1432-1041
    Keywords: phenylbutazone ; rheumatoid arthritis ; dose ; oxyphenbutazone ; side effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Different doses of phenylbutazone have been compared in a double blind study on 32 patients with rheumatoid arthritis in order to determine the minimum effective dose. Of 8 different dose levels studied (90 mg, 150 mg, 180 mg, 240 mg, 270 mg, 300 mg, 360 mg and 450 mg/day) the most efficacious was found to be 300 mg/day. Doses below this did not produce full benefit; no further improvement occurs with higher doses. Although 7/32 patients developed adverse reactions there was no relationship between these and the plasma levels of either phenylbutazone or oxyphenbutazone. An attempt was made to distinguish ‘responders’ from ‘non-responders’. We found no relationship between response and plasma levels of phenylbutazone or oxyphenbutazone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00607086
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Intra-articular steroids: Confounder of clinical trials (1991)
    Springer
    Clinical rheumatology 10 (1991), S. 38-42 
    Details
    ISSN: 1434-9949
    Keywords: Intra-Articular Steroids ; ESR ; C-Reactive Protein ; Rheumatoid Arthritis ; Drug Efficacy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of intra-articular (i-a) steroid injection on ESR and C-reactive protein (CRP) in rheumatoid arthritis (RA) was investigated. One week following injection of 1 or 2 knees there was a significant fall in ESR (p〈0.0001) and CRP (p〈0.01) in a cohort of 20 RA patients. The mean drop for both ESR and CRP was 46%. This effect lasted over a variable period up to 6 months. A survey of 50 published drug efficacy studies in RA revealed that, while 44 used ESR and 20 CRP as efficacy measures, 37 neither excluded nor recorded i-a steroid injections during the study. Steroid injections were excluded in 8 studies and recorded in 5, being used as an outcome measure in 2 of these. It is recommended that the frequency with which i-a injections are used in drug efficacy studies is reported and that they are avoided in the 3 months preceding an outcome measurement if ESR or CRP are being used as outcome measures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02208031
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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