銀屑病關(guān)節(jié)炎和非放射性軸性脊柱關(guān)節(jié)炎都是慢性炎癥性疾病。銀屑病關(guān)節(jié)炎可導(dǎo)致無(wú)法逆轉(zhuǎn)的關(guān)節(jié)變形和殘疾。據(jù)估計(jì),全球有超過(guò)5000萬(wàn)名銀屑病關(guān)節(jié)炎患者。軸性脊柱關(guān)節(jié)炎(axSpA)則主要影響骶髂關(guān)節(jié)和軸性骨骼,全球有大約450萬(wàn)成年患者。其中,nr-axSpA通常難以被診斷,很多患者較難獲得妥善的治療。
禮來(lái)公司的單克隆抗體Taltz,可選擇性結(jié)合白細(xì)胞介素17A(IL-17A),并抑制其與IL-17受體的相互作用。IL-17A是一種天然存在的細(xì)胞因子,參與正常的炎癥和免疫反應(yīng)。通過(guò)抑制IL-17受體介導(dǎo)的信號(hào)通路,Taltz能抑制促炎細(xì)胞因子和趨化因子的釋放,從而緩解炎癥性疾病的癥狀。此前,Taltz已獲批用于治療活躍性PsA,活躍性強(qiáng)直性脊柱炎(AS),以及適合進(jìn)行全身治療或光療的中重度斑塊狀銀屑病成人患者。
在這項(xiàng)名為COAST-X的3期臨床試驗(yàn)中,尚未接受過(guò)生物制劑類(lèi)抗風(fēng)濕藥物(bDMARD)治療的nr-axSpA患者接受了Taltz或安慰劑的治療。試驗(yàn)數(shù)據(jù)表明,治療52周后,治療組中達(dá)到脊柱關(guān)節(jié)炎國(guó)際協(xié)會(huì)評(píng)定40(ASAS40)的患者比例分別為30%(每4周接受一次治療)和31%(每2周接受一次治療),而在安慰劑組中的數(shù)值為13%。
參考資料:
[1] ACR 2019: Lilly Presents 52-Week Head-to-Head (SPIRIT-H2H) Data from Taltz? (ixekizumab) Versus Humira? (adalimumab) Trial in Psoriatic Arthritis, Retrieved November 12, 2019, from https://investor.lilly.com/news-releases/news-release-details/acr-2019-lilly-presents-52-week-head-head-spirit-h2h-data-taltzr
[2] ACR 2019: Lilly Presents Positive New Data from COAST-X, a Phase 3 Study of Taltz? (ixekizumab) in Patients with Non-Radiographic Axial Spondyloarthritis,Retrieved November 12, 2019, from https://www.prnewswire.com/news-releases/acr-2019-lilly-presents-positive-new-data-from-coast-x-a-phase-3-study-of-taltz-ixekizumab-in-patients-with-non-radiographic-axial-spondyloarthritis-300954995.html
[3] A Head-to-Head Comparison of Ixekizumab and Adalimumab in Biologic-Na?ve Patients with Active Psoriatic Arthritis: Efficacy and Safety Outcomes from a Randomized, Open-Label, Blinded Assessor Study Through 52 Weeks,Retrieved November 12, 2019, from https://acrabstracts.org/abstract/a-head-to-head-comparison-of-ixekizumab-and-adalimumab-in-biologic-naive-patients-with-active-psoriatic-arthritis-efficacy-and-safety-outcomes-from-a-randomized-open-label-blinded-assessor-study-th/
[4] Ixekizumab in Non-Radiographic Axial Spondyloarthritis: Primary Results from a Phase 3 Trial,Retrieved November 12, 2019, from https://acrabstracts.org/abstract/ixekizumab-in-non-radiographic-axial-spondyloarthritis-primary-results-from-a-phase-3-trial/