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Pharmacokinetics, tolerability, and preliminary efficacy of ABR-215757, a new quinoline-3-carboxamide derivative, in murine and human SLE
- Bengtsson, Anders A (author)
- Sturfelt, Gunnar (author)
- Lood, Christian (author)
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- van Vollenhoven, Ronald F (author)
- Axelsson, Bengt (author)
- Sparre, Birgitta (author)
- Tuvesson, Helén (author)
- Wallén Öhman, Marie (author)
- Leanderson, Tomas (author)
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- (creator_code:org_t)
- 2012-04-26
- 2012
- English.
- In: Arthritis and Rheumatism. - : Wiley. - 0004-3591 .- 1529-0131. ; 64:5, s. 1579-1588
- Journal article (peer-reviewed)
Abstract
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- OBJECTIVE: To assess the efficacy of ABR-215757, a new immunomodulatory small molecule in a murine SLE model, to evaluate the pharmacokinetics and tolerability in SLE patients at doses predicted to be efficacious and safe, and to determine the maximum tolerated dose (MTD). METHODS: The efficacy of ABR-215757 was studied in lupus prone MRLlpr/lpr mice and compared with established SLE treatments. Dose response data of ABR-215757 were together with pharmacokinetic data used to calculate effective and safe clinical doses. The pharmacokinetics and tolerance of ABR-215757 were evaluated in a Phase Ib double-blind, placebo controlled, dose-escalation study where cohorts of SLE patients received daily oral treatment for 12 weeks. RESULTS: Disease inhibition in MRLlpr/lpr mice, comparable to that of prednisolone and mycophenolate mofetil, was obtained with ABR-215757. Prominent effects on disease manifestations, serological markers and a steroid sparing effect were seen for ABR-215757. The pharmacokinetic properties in SLE patients were linear and well suitable for once daily oral treatment. The majority of the adverse events (AEs) were mild or moderate and transient. The most frequent AEs were arthralgia and myalgia, reported at the highest (4.5 and 6 mg/day) dose levels. At 4.5 mg and higher some AEs of severe intensity and serious adverse events (SAEs) were reported. CONCLUSION: ABR-215757 effectively inhibited disease and had a steroid sparing effect in experimental lupus. Clinical doses up to 3 mg/day, dose levels predicted from pre-clinical studies to be efficacious and safe, were well tolerated in the SLE patients. The MTD was concluded to be 4.5 mg/day.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reumatologi och inflammation (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Rheumatology and Autoimmunity (hsv//eng)
Keyword
- quinoline-3-carboxamide derivative
- SLE
- lupus
- Rheumatology
- Reumatologi
- Medicin
- Medicine
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- ref (subject category)
- art (subject category)
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