Safety and Efficacy of Mirogabalin in Lumbar Spinal Stenosis Patients with Peripheral Neuropathic Pain on NSAIDs: Post Hoc Analysis of the MiroTAS Study.
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引用次数: 0
Abstract
Introduction: The primary analysis of the MiroTAS study in patients with lumbar spinal stenosis (LSS) taking non-steroidal anti-inflammatory drugs showed that mirogabalin add-on therapy further improved pain and quality of life (QOL) without new safety concerns.
Methods: This post hoc analysis of the MiroTAS study examined the timing of onset of mirogabalin-related adverse drug reactions (mrADRs) (composite of somnolence, dizziness, edema, and peripheral edema), factors affecting safety and efficacy, and the relationships between baseline numbness severity (by spine painDETECT questionnaire [SPDQ] score), EQ-5D-5L scores, leg pain improvement (by visual analogue scale [VAS]), and patient satisfaction (by Patient Global Impression of Change [PGIC] scores).
Results: Among 110 patients, there were no significant differences in the incidence rates of mrADRs by patient characteristics. The mrADRs occurred mainly after the first administration and uptitration period of mirogabalin. EQ-5D-5L scores significantly improved from baseline to week 12 in patients with mrADRs vs those without (difference 0.0767; p = 0.0304 by t test). The proportion of patients with PGIC scores ≤ 3 at week 12 was numerically higher in patients with mrADRs vs those without. There were no differences in the percentage of patients with reduced leg pain by VAS score (improvement ≥ 20 mm) at week 12 by patient characteristics except for spondylolysis/spondylolisthesis as a complication. Baseline SPDQ numbness scores were positively correlated with improvement in EQ-5D-5L at week 12 (Spearman's rank correlation coefficient 0.2811, p = 0.0092).
Conclusions: Mirogabalin was not related to specific patient characteristics regarding the onset of mrADRs and was effective for LSS regardless of patient characteristics. Caution is needed regarding the onset of mrADRs after first administration and uptitration of mirogabalin, but these may not reduce QOL or patient satisfaction. Patients with high numbness scores may be more likely to benefit from treatment with mirogabalin in terms of QOL.
Trial registration: Japan Registry of Clinical Trials (jRCTs021200007).
期刊介绍:
Pain and Therapy is an international, open access, peer-reviewed, rapid publication journal dedicated to the publication of high-quality clinical (all phases), observational, real-world, and health outcomes research around the discovery, development, and use of pain therapies and pain-related devices. Studies relating to diagnosis, pharmacoeconomics, public health, quality of life, and patient care, management, and education are also encouraged.
Areas of focus include, but are not limited to, acute pain, cancer pain, chronic pain, headache and migraine, neuropathic pain, opioids, palliative care and pain ethics, peri- and post-operative pain as well as rheumatic pain and fibromyalgia.
The journal is of interest to a broad audience of pharmaceutical and healthcare professionals and publishes original research, reviews, case reports, trial protocols, short communications such as commentaries and editorials, and letters. The journal is read by a global audience and receives submissions from around the world. Pain and Therapy will consider all scientifically sound research be it positive, confirmatory or negative data. Submissions are welcomed whether they relate to an international and/or a country-specific audience, something that is crucially important when researchers are trying to target more specific patient populations. This inclusive approach allows the journal to assist in the dissemination of all scientifically and ethically sound research.