Adjunctive tonic motor activation enables opioid reduction for refractory restless legs syndrome: a prospective, open-label, single-arm clinical trial.
Adjunctive tonic motor activation enables opioid reduction for refractory restless legs syndrome: a prospective, open-label, single-arm clinical trial.
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辅助紧张性运动激活使难治性不宁腿综合征的阿片类药物减少:一项前瞻性、开放标签、单臂临床试验。
DOI:
10.1186/s12883-023-03462-6
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发表时间:
2023-11-21
期刊:
影响因子:
2.6
通讯作者:
Charlesworth, Jonathan D.
中科院分区:
文献类型:
--
作者:
Buchfuhrer, Mark J.;Roy, Asim;Rodriguez, Stephanye;Charlesworth, Jonathan D.
关键词:
There is a large population of restless legs syndrome (RLS) patients who are refractory to medication. Whereas experts recommend off-label opioids as an effective long-term treatment for refractory RLS, reducing opioid dose could substantially reduce side effects and risks. Tonic motor activation (TOMAC) is a nonpharmacological therapeutic device indicated for refractory RLS. Here, we investigated if TOMAC could enable opioid dose reduction for refractory RLS. This prospective, open-label, single-arm clinical trial [NCT04698343] enrolled 20 adults taking ≤ 60 morphine milligram equivalents (MMEs) per day for refractory RLS. Participants self-administered 30-min TOMAC sessions bilaterally over the peroneal nerve when RLS symptoms presented. During TOMAC treatment, opioid dose was reduced iteratively every 2–3 weeks until Clinician Global Impression of Improvement (CGI-I) score relative to baseline exceeded 5. Primary endpoint was percent of participants who successfully reduced opioid dose ≥ 20% with CGI-I ≤ 5. Secondary endpoints included mean successful percent opioid dose reduction with CGI-I ≤ 5. On average, participants were refractory to 3.2 medications (SD 1.6) and were taking a stable dose of opioids for 5.3 years (SD 3.9). Seventy percent of participants (70%, 14 of 20) successfully reduced opioid dose ≥ 20% with CGI-I ≤ 5. Mean percent opioid dose reduction with CGI-I ≤ 5 was 29.9% (SD 23.7%, n = 20) from 39.0 to 26.8 MME per day. Mean CGI-I score at the reduced dose was 4.0 (SD 1.4), indicating no change to RLS severity. For refractory RLS, TOMAC enabled substantial opioid dose reduction without increased RLS symptoms. These results suggest that TOMAC has the potential to reduce the risk profile associated with opioid therapy for refractory RLS. ClinicalTrials.gov trial number NCT04698343 registered on January 6, 2021. The online version contains supplementary material available at 10.1186/s12883-023-03462-6.
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