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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Arthritis+Rheumatol
2018 ; 70
(5
): 763-773
Nephropedia Template TP
gab.com Text
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English Wikipedia
Efficacy of Epratuzumab, an Anti-CD22 Monoclonal IgG Antibody, in Systemic Lupus
Erythematosus Patients With Associated Sjögren s Syndrome: Post Hoc Analyses From
the EMBODY Trials
#MMPMID29381843
Gottenberg JE
; Dörner T
; Bootsma H
; Devauchelle-Pensec V
; Bowman SJ
; Mariette X
; Bartz H
; Oortgiesen M
; Shock A
; Koetse W
; Galateanu C
; Bongardt S
; Wegener WA
; Goldenberg DM
; Meno-Tetang G
; Kosutic G
; Gordon C
Arthritis Rheumatol
2018[May]; 70
(5
): 763-773
PMID29381843
show ga
OBJECTIVE: EMBODY 1 (ClinicalTrials.gov identifier: NCT01262365) and EMBODY 2
(ClinicalTrials.gov identifier: NCT01261793) investigated the efficacy and safety
of epratuzumab, a CD22-targeted humanized monoclonal IgG antibody, in patients
with systemic lupus erythematosus (SLE). The studies showed no significant
difference from placebo in primary or secondary clinical outcome measures but did
demonstrate B cell-specific immunologic activity. The aim of this post hoc
analysis was to determine whether epratuzumab had a different clinical efficacy
profile in SLE patients with versus those without an associated diagnosis of
Sjögren's syndrome (SS). METHODS: The efficacy and safety of epratuzumab were
compared between 2 patient subpopulations randomized in EMBODY 1 and 2: SLE
patients with and those without a diagnosis of associated SS. British Isles Lupus
Assessment Group (BILAG) total score, BILAG-based Combined Lupus Assessment
(BICLA) clinical response to treatment, biologic markers (including B cells, IgG,
IgM, and IgA), and safety were assessed. RESULTS: A total of 1,584 patients were
randomized in the EMBODY 1 and EMBODY 2 trials; 113 patients were anti-SSA
positive and had a diagnosis of associated SS, and 1,375 patients (86.8%) had no
diagnosis of associated SS (918 patients were randomized to receive epratuzumab
and 457 to receive placebo). For patients with associated SS, but not those
without associated SS, a higher proportion of patients receiving epratuzumab
achieved a BICLA response and a reduction from baseline in BILAG total score. B
cell reduction was faster in patients with associated SS. The sensitivity of B
cells to epratuzumab as measured by the mean concentration producing 50% of the
maximum B cell count depletion was lower for patients with associated SS (9.5
?g/ml) versus the total EMBODY population (87.1 ?g/ml). No difference in the
frequency of adverse events in those receiving placebo was reported. CONCLUSION:
Patients with SLE and associated SS treated with epratuzumab showed improvement
in SLE disease activity, which was associated with bioactivity, such as decreases
in B cell number and IgM level.
|Adult
[MESH]
|Antibodies, Monoclonal, Humanized/*therapeutic use
[MESH]
|Antineoplastic Agents, Immunological/*therapeutic use
[MESH]