Preventive treatment

预防性治疗
  • 文章类型: Journal Article
    目的:描述美国偏头痛患者开始治疗急性和预防性治疗药物标准后3年的治疗模式和直接医疗费用。
    背景:关于长期(>1年)偏头痛治疗模式和相关结局的数据有限。
    方法:这是一个回顾性研究,使用IBM®MarketScan®研究数据库(2010年1月至2017年12月)的美国索赔数据进行的观察性队列研究.如果成年人在指数期(2011年1月至2014年12月)有急性偏头痛治疗(AMT)或预防性偏头痛治疗(PMT)的处方要求,则包括在内。AMT队列被归类为持久性,骑自行车,或附加亚组;PMT队列被归类为PMT-持久性,无间隙切换,或与间隙循环。AMT和PMT队列亚组的偏头痛特异性年度直接费用(2017美元)在基线至3年(随访)进行了总结。
    结果:在索引期间,20,778和42,259名患者开始了AMT和PMT,分别。在3年的随访中,在两个AMT中,相对于非持续性亚组,持续性亚组的偏头痛特异性直接成本较低(平均值[SD]:$789[$1741]vs.附加子组中为$2847[$8149],循环子组中为$862[$5426])和PMT队列(持久性子组中的平均值[SD]:$1817[$5892]与无间隙子组中的$4257[$11,392]和带间隙子组中的$3269[$18,540])。急性药物过度使用在持续性亚组(1025/6504[27.2%])和非持久性亚组(11,236/58,863[32.2%]在有间隙的循环亚组和1431/6504[39.4%]在无间隙的切换亚组)。大多数患者在治疗开始后3年内使用多种急性(19,717/20,778[94.9%])或预防性(38,494/42,259[91.1%])药物治疗。预防性治疗的差距很常见;平均差距为85至211天(〜3-7个月)。
    结论:在AMT和PMT持续治疗的患者中,偏头痛特异性年度医疗费用和急性偏头痛药物过度使用仍然最低。研究结果仅限于美国人口。未来的研究应该比较偏头痛患者的新型预防性偏头痛药物的成本和相关结果。
    OBJECTIVE: To describe treatment patterns and direct healthcare costs over 3 years following initiation of standard of care acute and preventive migraine medications in patients with migraine in the United States.
    BACKGROUND: There are limited data on long-term (>1 year) migraine treatments patterns and associated outcomes.
    METHODS: This was a retrospective, observational cohort study using US claims data from the IBM® MarketScan® Research Database (January 2010-December 2017). Adults were included if they had a prescription claim for acute migraine treatments (AMT) or preventive migraine treatments (PMT) in the index period (January 2011-December 2014). The AMT cohort was categorized as persistent, cycled, or added-on subgroups; the PMT cohort was categorized PMT-persistent, switched without gaps, or cycled with gaps. Migraine-specific annual direct costs (2017 US$) across AMT and PMT cohort subgroups were summarized at baseline through 3 years from index (follow-up).
    RESULTS: During the index period, 20,778 and 42,259 patients initiated an AMT and a PMT, respectively. At the 3-year follow-up, migraine-specific direct costs were lower in the persistent subgroup relative to the non-persistent subgroups in both AMT (mean [SD]: $789 [$1741] vs. $2847 [$8149] in the added-on subgroup and $862 [$5426] for the cycled subgroup) and PMT cohorts (mean [SD]: $1817 [$5892] in the persistent subgroup vs. $4257 [$11,392] in the switched without gaps subgroup and $3269 [$18,540] in the cycled with gaps subgroup). Acute medication overuse was lower in the persistent subgroup (1025/6504 [27.2%]) vs. non-persistent subgroups (11,236/58,863 [32.2%] in cycled with gaps subgroup and 1431/6504 [39.4%] in the switched without gaps subgroup). Most patients used multiple acute (19,717/20,778 [94.9%]) or preventive (38,494/42,259 [91.1%]) pharmacological therapies over 3 years following treatment initiation. Gaps in preventive therapy were common; an average gap ranged from 85 to 211 days (~3-7 months).
    CONCLUSIONS: Migraine-specific annual healthcare costs and acute migraine medication overuse remained lowest among patients with persistent AMT and PMT versus non-persistent treatment. Study findings are limited to the US population. Future studies should compare costs and associated outcomes between newer preventive migraine medications in patients with migraine.
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  • 文章类型: Journal Article
    确定偏头痛患者对急性和预防性治疗方案的偏好和看法,并调查哪些治疗结果是最重要的。
    作者在一组来自希腊和塞浦路斯的偏头痛患者中进行了选择格式调查。使用了与希腊偏头痛患者协会合作开发的自我管理问卷。
    对617名偏头痛患者进行问卷调查。作为唯一最重要的参数,疗效优于安全性。无论是在急性和预防性治疗。在分析单一结果时,患者优先考虑急性治疗给药后1小时疼痛完全缓解.关于偏头痛的预防,频率减少75%,疼痛的强度,伴随症状和急性药物摄入被认为是最重要的。相反,临床试验中常规使用的结果,即急性治疗给药后2小时完全或部分疼痛缓解,预防偏头痛频率减少50%或30%,被认为不是特别相关。片剂配方是最优选的,无论是在急性和预防性治疗。结论:倾听患者的需求可能会增加临床实践中普遍缺失的难题,并经常解释急性和预防性抗偏头痛治疗缺乏依从性。
    UNASSIGNED: To identify the preferences and perceptions of migraine patients for acute and preventive treatment options and to investigate which treatment outcomes are the most important.
    UNASSIGNED: The authors performed a choice-format survey in a cohort of migraine patients from Greece and Cyprus. A self-administered questionnaire developed in collaboration with the Greek Society of Migraine Patients was used.
    UNASSIGNED: Questionnaires were collected from 617 migraine patients. Efficacy was preferred over safety as the single most important parameter, both in acute and preventive treatment. When analyzing single outcomes, patients prioritized a complete pain remission at 1-hour post-dose for acute therapies. Regarding migraine prevention, a 75% reduction in frequency, intensity of pain, accompanying symptoms and acute medication intake were considered as most important. Conversely, outcomes routinely used in clinical trials, namely complete or partial pain remission at 2-hours post-dose for acute treatment and 50% or 30% reduction in migraine frequency for prevention, were not deemed particularly relevant. Tablet formulation was mostly preferred, both in acute and preventive treatment. Conclusion: Listening to patients\' needs may add a piece of the puzzle that is generally missing in clinical practice and often explains the lack of adherence in both acute and preventative anti-migraine therapies.
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  • 文章类型: Journal Article
    希腊偏头痛和头痛患者协会在2023年进行了第三次在线人群网络调查,以确定疾病负担和患者对传统和新型偏头痛疗法的满意度是否正在发生变化。方法:抽样过程基于对参与者的随机呼吁,以回答特定的偏头痛为重点的自我管理问卷,包括83个希腊语问题,通过在线研究软件SurveyMonkey在全国范围内分发。结果:我们最终招募了2565名患者,其中大多数是女性。我们的发现清楚地表明,偏头痛仍然是一种繁重的疾病。其对生产力各个方面的影响程度取决于偏头痛的每月频率以及对急性和预防性治疗的反应率。共有1029例(42.4%)的患者因对急性治疗或先兆相关症状无反应而去急诊室。Triptans作为急性疗法似乎部分有效。对于几乎一半的慢性偏头痛患者(43.9%)来说,对这种治疗有足够的满意度(27.8%的人“相当满意”,10.6%的人“非常高兴”,5.5%的人“非常高兴”)。由于它们的高预防效力,大多数接受抗CGRPMab治疗的受访者对偏头痛的未来表示乐观(88.25%),以及进一步提高他们的生活质量(82.8%),主要是Fremanezumab.结论:患者认识到抗CGRPMab在偏头痛预防中的有用性,因此似乎比以前对偏头痛的生活更加乐观。考虑到使用gepants和ditans预期的市场变化,有必要进行更大规模的基于人群的纵向研究,以进一步探讨偏头痛治疗的新时代是否可以进一步减轻疾病负担.
    Objective: The Greek Society of Migraine and Headache Patients conducted its third in-line population web-based survey in 2023 to ascertain if the burden of the disease and the patients\' satisfaction with conventional and novel migraine therapies are changing compared to our previous findings from 2018 and 2020. Methods: The sampling process was based on a random call to participants to reply to a specific migraine-focused self-administered questionnaire, including 83 questions in Greek, which was distributed nationwide through the online research software SurveyMonkey. Results: We eventually enrolled 2565 patients, the majority of which were females. Our findings clearly demonstrate that migraine is still a burdensome condition. The degree of its impact on all aspects of productivity depends on the monthly frequency of migraine and the response rates to acute and prophylactic treatments. A total of 1029 (42.4%) of the patients had visited the emergency room mainly for unresponsiveness to acute treatments or aura-related symptoms. Triptans seem to be partly effective as acute therapies. OnabotulinumtoxinA seems to be effective for almost half of chronic migraine patients (43.9%) to report adequate satisfaction with this treatment (27.8% were \"fairly happy\", 10.6% were \"very happy\", and 5.5% were \"extremely happy\"). Due to their high rates of preventative effectiveness, most respondents treated with anti-CGRP Mabs expressed their optimism concerning their future while living with their migraine (88.25%), as well as towards further improvements in their quality of life (82.8%) status, mostly with fremanezumab. Conclusions: The patients recognize the usefulness of anti-CGRP Mabs in migraine prevention and consequently seem to be more optimistic than before about living with migraine. Considering the market change that is anticipated with the use of gepants and ditans, larger longitudinal population-based studies are warranted to further explore if the new era of migraine therapeutics might further lessen the burden of the disease.
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  • 文章类型: Journal Article
    目的:比较降钙素基因相关肽单克隆抗体(CGRPmAb)与非特异性口服偏头痛预防药物(NOEP)。
    背景:保险公司在批准CGRPmAb之前,必须使用NOEP进行阶梯治疗。
    方法:在数据库中搜索I类或II类随机对照试验(RCTs),比较CGRPmAb或NOEP与安慰剂预防成人偏头痛的作用。主要结果指标是每月偏头痛天数(MMD)或中度至重度头痛天数。
    结果:CGRP单克隆抗体的12个RCT,5托吡酯的随机对照试验,和3个双丙戊酸钠的RCT纳入荟萃分析。有很高的确定性,CGRP单克隆抗体比安慰剂更有效,加权平均差(WMD;95%置信区间)为-1.64(-1.99至-1.28)MMD,这与小效应大小(科恩的d-0.25[-0.34至-0.16])兼容。托吡酯或双丙戊酸钠比安慰剂更有效的证据的确定性非常低,(WMD分别为-1.45[-1.52至-1.38]和-1.65[-2.30至-1.00],分别;科恩的d-1.25[-2.47至-0.03]和-0.48[-0.67至-0.29],分别)。试验序贯分析表明,信息大小足够,CGRPmAb与安慰剂相比具有明显的益处。网络荟萃分析显示CGRPmAb与托吡酯(WMD-0.19[-0.56,0.17])或二丙戊酸钠(0.01[-0.73,0.75])之间无统计学差异。托吡酯或双丙戊酸钠之间没有显著差异(0.21[-0.45至0.86])。
    结论:有很高的确定性,CGRP单克隆抗体比安慰剂更有效,但效果大小小。在可行的情况下,CGRP单克隆抗体可作为一线预防药物;托吡酯或双丙戊酸钠可能同样有效,但耐受性较差。这项研究的结果支持了美国头痛协会最近发表的2024年关于使用CGRPmAb作为一线治疗的立场。
    OBJECTIVE: To compare calcitonin gene-related peptide monoclonal antibodies (CGRP mAbs) versus nonspecific oral migraine preventives (NOEPs).
    BACKGROUND: Insurers mandate step therapy with NOEPs before approving CGRP mAbs.
    METHODS: Databases were searched for class I or II randomized controlled trials (RCTs) comparing CGRP mAbs or NOEPs versus placebo for migraine prevention in adults. The primary outcome measure was monthly migraine days (MMD) or moderate to severe headache days.
    RESULTS: Twelve RCTs for CGRP mAbs, 5 RCTs for topiramate, and 3 RCTs for divalproex were included in the meta-analysis. There was high certainty that CGRP mAbs are more effective than placebo, with weighted mean difference (WMD; 95% confidence interval) of -1.64 (-1.99 to -1.28) MMD, which is compatible with small effect size (Cohen\'s d -0.25 [-0.34 to -0.16]). Certainty of evidence that topiramate or divalproex is more effective than placebo was very low and low, respectively (WMD -1.45 [-1.52 to -1.38] and -1.65 [-2.30 to -1.00], respectively; Cohen\'s d -1.25 [-2.47 to -0.03] and -0.48 [-0.67 to -0.29], respectively). Trial sequential analysis showed that information size was adequate and that CGRP mAbs had clear benefit versus placebo. Network meta-analysis showed no statistically significant difference between CGRP mAbs and topiramate (WMD -0.19 [-0.56 to 0.17]) or divalproex (0.01 [-0.73 to 0.75]). No significant difference was seen between topiramate or divalproex (0.21 [-0.45 to 0.86]).
    CONCLUSIONS: There is high certainty that CGRP mAbs are more effective than placebo, but the effect size is small. When feasible, CGRP mAbs may be prescribed as first-line preventives; topiramate or divalproex could be as effective but are less well tolerated. The findings of this study support the recently published 2024 position of the American Headache Society on the use of CGRP mAbs as the first-line treatment.
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  • 文章类型: Journal Article
    背景:幼儿龋齿(ECC)是一种普遍存在的牙科问题,影响六岁以下的儿童。传统的修复治疗,如填充物,对幼儿来说往往是具有挑战性和侵入性的。氟化银二胺(SDF)为管理ECC提供了一种微创且经济高效的替代方案。然而,的影响,接受,父母对这种治疗的理解对于其成功实施仍然至关重要。
    目的:评估在ECC中接受SDF治疗的影响和水平。
    方法:选择了来自Anganwadi中心的32名儿童,年龄在2至5岁之间患有ECC。在确定的龋齿病变上施加38%的SDF3分钟,在三周三个月的召回期后,对逮捕率进行了检查。Likert量表用于有关父母对申请程序的简易性反馈的问卷,牙齿变色,可能与手术相关的疼痛,和SDF的味道。
    结果:在本研究中,总共75个表面经受SDF的应用。三个星期后,据观察,这些表面中有64个成功地经历了龋齿阻止的过程。这一发现被认为具有统计学意义,P值为0.021。此外,其余未达到龋齿阻止的表面随后在三个月后得到治疗。这项后续治疗的结果也被发现具有统计学意义,P值为0.027。这些发现强调了龋齿治疗和龋齿阻止与使用SDF有关的功效。
    结论:发现SDF是微创的,易于管理,便宜,高效,以及有效的治疗方法来阻止幼儿的原发性牙列龋齿,特别是缺乏合作的患者。
    BACKGROUND:  Early childhood caries (ECC) is a widespread dental problem that impacts children below the age of six years. Traditional restorative treatments like fillings are often challenging and invasive for young children. Silver diamine fluoride (SDF) offers a minimally invasive and cost-effective alternative for managing ECC. However, the effects, acceptance, and understanding of this treatment by parents remain crucial for its successful implementation.
    OBJECTIVE: To evaluate the impact and level of acceptance of SDF treatment in ECC.
    METHODS: Thirty-two children from an Anganwadi center aged between two to five years suffering from ECC were selected. A 38% SDF was applied for 3 minutes on the identified carious lesion, and the arrest percentage was checked after a recall period of three weeks and three months. The Likert scale was used for the questionnaire regarding parental feedback about the ease of application procedure, tooth discoloration, possible pain associated with the procedure, and the taste of SDF.
    RESULTS: In the present study, a total of 75 surfaces were subjected to the application of SDF. After a period of three weeks, it was observed that 64 of these surfaces had successfully undergone the process of caries arrest. This finding was deemed to be statistically significant, with a P value of 0.021. Furthermore, the remaining surfaces that had not achieved caries arrest were subsequently treated at three months. The results of this subsequent treatment were also found to be statistically significant, with a P value of 0.027. These findings highlight the efficacy of both caries treatment and caries arrest in relation to the utilization of SDF.
    CONCLUSIONS: SDF was found to be minimally invasive, easy to administer, inexpensive, highly efficient, and effective treatment in arresting caries in the primary dentition of young children, particularly in patients lacking cooperation.
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  • 文章类型: Journal Article
    背景:在最近的一项随机研究中,双盲,安慰剂对照研究,我们观察到脉冲给药后,丛集性头痛的发作频率没有显着降低(10mg/70kg,3剂,每个间隔5天)。我们进行了盲延伸阶段,以考虑重复脉冲方案的安全性和有效性。
    方法:符合条件的参与者在第一轮研究参与后至少6个月返回接受psilocybin脉冲。参与者在第一次服药前两周开始记录头痛日记,并在第一次服药后持续八周。十名参与者完成了扩展阶段,所有十名都包括在最终分析中。
    结果:在脉搏开始后的三周内,集群攻击频率较基线显著降低(18.4[95%置信区间8.4~28.4]至9.8[4.3~15.2]次攻击/周;p=0.013,d'=0.97).观察到约50%的减少,无论在第一轮中个体对裸盖素的反应如何。Psilocybin耐受性良好,没有任何意外或严重的不良事件。
    结论:本研究显示,在反复循环脉冲裸盖素给药过程中,集群攻击频率显著降低,并提示先前的反应可能无法预测反复治疗的效果。为了评估psilocybin作为丛集性头痛的可行药物的全部潜力,未来的工作应该研究更大的安全性和治疗效果,在更长的时间内更有代表性的样本,包括重复治疗。
    背景:NCT02981173。
    BACKGROUND: In a recent randomized, double-blind, placebo-controlled study, we observed a nonsignificant reduction of attack frequency in cluster headache after pulse administration of psilocybin (10 mg/70 kg, 3 doses, 5 days apart each). We carried out a blinded extension phase to consider the safety and efficacy of repeating the pulse regimen.
    METHODS: Eligible participants returned to receive a psilocybin pulse at least 6 months after their first round of study participation. Participants kept headache diaries starting two weeks before and continuing through eight weeks after the first drug session. Ten participants completed the extension phase and all ten were included in the final analysis.
    RESULTS: In the three weeks after the start of the pulse, cluster attack frequency was significantly reduced from baseline (18.4 [95% confidence interval 8.4 to 28.4] to 9.8 [4.3 to 15.2] attacks/week; p = 0.013, d\' = 0.97). A reduction of approximately 50% was seen regardless of individual response to psilocybin in the first round. Psilocybin was well-tolerated without any unexpected or serious adverse events.
    CONCLUSIONS: This study shows a significant reduction in cluster attack frequency in a repeat round of pulse psilocybin administration and suggests that prior response may not predict the effect of repeated treatment. To gauge the full potential of psilocybin as a viable medicine in cluster headache, future work should investigate the safety and therapeutic efficacy in larger, more representative samples over a longer time period, including repeating the treatment.
    BACKGROUND: NCT02981173.
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  • 文章类型: Journal Article
    Eptinezumab,一种靶向降钙素基因相关肽(CGRP)的单克隆抗体,最近在欧洲被批准用于每月至少有四天偏头痛的成年人的偏头痛预防性治疗。每12周通过静脉内输注施用Eptinezumab。最近几个月,来自eptinezumab试验的大量证据已经发表.这篇综述的目的是描述关于耐受性的现有证据,在偏头痛患者中使用eptinezumab的安全性和有效性。来自随机(PROMISE-1,PROMISE-2,RELIEF和DELIVER)和开放标签(PREVAIL)3期临床试验的数据表明,从治疗的第一天起,eptinezumab对偏头痛症状具有良好的作用。这些研究表明,eptinezumab导致平均每月偏头痛天数(MMD)的整体减少,发作性偏头痛(EM)和慢性偏头痛(CM)患者的≥50%和≥75%偏头痛反应率(MRR)增加,患者报告的结局指标改善,包括以前预防性治疗失败的患者。RELIEF试验还显示,eptinezumab,在施用后2小时内,减轻头痛,偏头痛发作期间的偏头痛相关症状和急性药物使用。Eptinezumab益处早在给药后第1天表现出来,随后的剂量持续至少2年。≥2%的患者报告的因治疗引起的不良事件包括上呼吸道感染和疲劳。目前的证据表明,eptinezumab具有有效的,快速行动,对EM和CM患者的持续偏头痛预防作用。Eptinezumab也显示出良好的耐受性,支持将其用于偏头痛患者的治疗,并将其纳入当前的偏头痛治疗方案。
    Eptinezumab, a monoclonal antibody that targets calcitonin gene-related peptide (CGRP), was recently approved in Europe for the prophylactic treatment of migraine in adults who have at least four migraine days a month. Eptinezumab is administered by intravenous infusion every 12 weeks. During recent months, a considerable amount of evidence from eptinezumab trials has been published. The aim of this review is to describe the existing evidence on the tolerability, safety and efficacy of eptinezumab in patients with migraine. Data from randomized (PROMISE-1, PROMISE-2, RELIEF and DELIVER) and open-label (PREVAIL) phase 3 clinical trials have demonstrated the favorable effect of eptinezumab in migraine symptoms from first day of treatment. These studies showed that eptinezumab results in an overall reduction in mean monthly migraine days (MMDs), increases in the ≥50% and ≥ 75% migraine responder rates (MRRs) and improvements in patient-reported outcome measures in both patients with episodic migraine (EM) and with chronic migraine (CM), including patients who failed previous preventive treatments. The RELIEF trial also showed that eptinezumab, within 2 h of administration, reduced headache pain, migraine-associated symptoms and acute medication use when administered during a migraine attack. Eptinezumab benefits manifested as early as day 1 after dosing and with the subsequent doses lasted up to at least 2 years. Treatment-emergent adverse events reported by ≥2% of patients included upper respiratory tract infection and fatigue. Current evidence demonstrates that eptinezumab has a potent, fast-acting, sustained migraine preventive effect in patients with EM and CM. Eptinezumab has also shown to be well tolerated, supporting its use in the treatment of patients with migraine and inclusion in the current migraine therapeutic options.
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  • 文章类型: Observational Study
    背景:降钙素基因相关肽已显示在丛集性头痛(CH)病理生理学中起重要作用。在慢性丛集性头痛(CCH)中进行了galcanezumab的临床试验,但未达到其最初的终点。然而,可以考虑将其用于对其他疗法无效的CCH患者的标签外使用。我们的目的是在现实生活中评估galcanezumab作为CCH预防性治疗的有效性和安全性。
    方法:进行观察性研究。CCH患者接受至少一个剂量的240mggalcanezumab。
    结果:21名患者尝试平均6.3±1.9次预防性治疗,其中包括90.5%的单糖霉素A。在基线,频率中位数为每月发作60次(37.5-105次),疼痛强度为10次(8.3-10次)(数值评定量表).一个月后,频率降至31(10.5-45)(p=0.003),强度为8.5(8-9.5)(p=0.007);10(47.6%)例患者为50%应答者,其中4例(19%)为75%应答者.15例患者随访3个月,七个(46.6%)的频率降低了50%,四个(26.6%)的频率降低了75%,每月发作40次(10-60次)(p=0.07),疼痛强度为8次(5-10次)(p=0.026)。约52%的患者出现不良事件,大多温和。
    结论:在我们的难治性CCH队列中,galcanezumab在近50%的患者中有效.这一发现支持个人的标签外治疗尝试。
    BACKGROUND: Calcitonin gene-related peptide has shown to play a central role in cluster headache (CH) pathophysiology. A clinical trial with galcanezumab was carried out in chronic cluster headache (CCH) but did not meet its primay endpoint. However, its off-label use in patients with CCH refractory to other therapies could be considered. We aimed to asses the efficacy and safety of galcanezumab as CCH preventive treatment in a real-life setting.
    METHODS: An observational study was conducted. Patients with CCH who received at least one dose of 240 mg of galcanezumab.
    RESULTS: Twenty-one patients who tried a mean of 6.3 ± 1.9 preventive therapies, including onabotulinumtoxinA in 90.5%. At baseline, the median of frequency was 60 (37.5-105) monthly attacks with 10 (8.3-10) points in pain intensity (Numerical Rating Scale). After one month, the frequency decreased to 31 (10.5-45) (p = 0.003) with 8.5 (8-9.5) intensity (p = 0.007); 10 (47.6%) patients were 50% responders of whom four (19%) were 75% responders. Of the 15 patients with 3 months of follow-up, seven (46.6%) reduced their frequency by 50% and four (26.6%) by 75%, with 40 (10-60) monthly attacks (p = 0.07) and pain intensity of 8 (5-10) (p = 0.026). Some 52% patients experienced adverse events, mostly mild.
    CONCLUSIONS: In our cohort of refractory CCH, galcanezumab was effective in almost 50% of patients. This finding supports individual off-label treatment attempts.
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  • 文章类型: Journal Article
    对潜伏性结核感染(LTBI)患者的预防性治疗引起了我们的极大兴趣。在本文中,我们提出并分析了一种新的结核病数学模型,该模型考虑了有媒体影响的预防性治疗.基本再现数R0由下一代矩阵方法定义。在没有媒体影响的情况下,我们证明了如果R0<1(R0>1),无病平衡是全局渐近稳定(不稳定)的。此外,我们得到,当R0>1时,存在一个唯一的地方性均衡,在永久免疫和无媒体影响的情况下,它是全局渐近稳定的。我们将模型与中国四个地区2009-2019年新报告的结核病例数据进行拟合,并估计参数。我们估计湖北的R0=0.5013<1,表明湖北的结核病将在未来被消除。然而,河南估计R0=1.015>1,江西的R0=1.282>1和新疆的R0=1.930>1意味着结核病将在这三个地区继续存在,而没有进一步的预防和控制措施。此外,进行了敏感性分析,以说明模型参数在结核病控制中的作用。我们的发现表明,适当提高积极感染者的及时治疗率和增加LTBI患者寻求预防性治疗的比例可以实现消除结核病的目标。此外,另一个有趣的发现表明,媒体的影响只能在有限的程度上减少活动性感染的数量,但不能改变结核病的患病率。
    Preventive treatment for people with latent Tuberculosis infection (LTBI) has aroused our great interest. In this paper, we propose and analyze a novel mathematical model of TB considering preventive treatment with media impact. The basic reproduction number R0 is defined by the next generation matrix method. In the case without media impact, we prove that the disease-free equilibrium is globally asymptotically stable (unstable) if R0<1(R0>1). Furthermore, we obtain that a unique endemic equilibrium exists when R0>1, which is globally asymptotically stable in the case of permanent immunity and no media impact. We fit the model to the newly reported TB cases data from 2009 to 2019 of four regions in China and estimate the parameters. And we estimated R0=0.5013<1 in Hubei indicating that TB in Hubei will be eliminated in the future. However, the estimated R0=1.015>1 in Henan, R0=1.282>1 in Jiangxi and R0=1.930>1 in Xinjiang imply that TB will continue to persist in these three regions without further prevention and control measures. Besides, sensitivity analysis is carried out to illustrate the role of model parameters for TB control. Our finding reveals that appropriately improving the rate of timely treatment for actively infected people and increasing the rate of individuals with LTBI seeking preventive treatment could achieve the goal of TB elimination. In addition, another interesting finding shows that media impact can only reduce the number of active infections to a limited extent, but cannot change the prevalence of TB.
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  • 文章类型: Journal Article
    目的:多项模型研究表明,实施潜伏性结核感染(LTBI)检测和治疗可以大大降低结核病(TB)的发病率,并实现“终止结核病”战略的2035目标。中国。本研究的目的是评估LTBI检测和结核病预防治疗在中国社区范围内的主要人群(≥50岁)的成本效益。
    方法:建立了一个马尔可夫模型,以研究使用干扰素γ释放试验(IGRA)进行LTBI测试的成本效益,以及随后使用6个月每日异烟肼方案(6H)(作为比较的标准方案)或6周每周两次的利福喷丁和异烟肼方案(6周H2P2)治疗的10,000名成年人,平均初始年龄为50岁。
    结果:在基本案例分析中,LTBI测试和6H治疗占主导地位(即,通过LTBI测试和6周H2P2治疗,在质量调整生命年(QALY)较低的情况下更昂贵)。LTBI测试和6周H2P2治疗比没有干预更有效,每QALY获得20,943.81美元,低于在中国获得的每QALY24,211.84美元的支付意愿(WTP)门槛。单向敏感性分析显示,LTBI患病率的变化是对增量成本效益比(ICER)结果影响最大的参数。
    结论:根据马尔可夫模型的估计,与使用6H的LTBI测试和治疗相比,使用6周H2P2的LTBI测试和治疗节省成本,它被认为是中国农村结核病控制的一种具有成本效益的选择。
    OBJECTIVE: Several model studies suggested the implementation of latent tuberculosis infection (LTBI) testing and treatment could greatly reduce the incidence of tuberculosis (TB) and achieve the 2035 target of the \"End TB\" Strategy in China. The present study aimed to evaluate the cost-effectiveness of LTBI testing and TB preventive treatment among key population (≥ 50 years old) susceptible to TB at community level in China.
    METHODS: A Markov model was developed to investigate the cost-effectiveness of LTBI testing using interferon gamma release assay (IGRA) and subsequent treatment with 6-month daily isoniazid regimen (6H) (as a standard regimen for comparison) or 6-week twice-weekly rifapentine and isoniazid regimen (6-week H2P2) in a cohort of 10,000 adults with an average initial age of 50 years.
    RESULTS: In the base-case analysis, LTBI testing and treatment with 6H was dominated (i.e., more expensive with a lower quality-adjusted life year (QALY)) by LTBI testing and treatment with 6-week H2P2. LTBI testing and treatment with 6-week H2P2 was more effective than no intervention at a cost of $20,943.81 per QALY gained, which was below the willingness-to-pay (WTP) threshold of $24,211.84 per QALY gained in China. The one-way sensitivity analysis showed the change of LTBI prevalence was the parameter that most influenced the results of the incremental cost-effectiveness ratios (ICERs).
    CONCLUSIONS: As estimated by a Markov model, LTBI testing and treatment with 6-week H2P2 was cost-saving compared with LTBI testing and treatment with 6H, and it was considered to be a cost-effective option for TB control in rural China.
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