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临床试验/NCT06023706
NCT06023706招募中3 期

Phase 3 Confirmatory, Randomised 1:1 Double-blind, Placebo-controlled Study Evaluating the Analgesic Efficacy of Capsaicin 8% Patches in Chronic Coccygodynia.

Nantes University Hospital6 个研究点 分布在 1 个国家目标入组 188 人开始时间: 2023年11月8日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
3 期
状态
招募中
入组人数
188
试验地点
6
主要终点
to demonstrate the analgesic effect at day 60 of 8% capsaicin patch (Qutenza) for the treatment of patients with coccygodyinia.

研究概览

简要总结

The primary objective is to demonstrate the analgesic effect at day 60 of 8% capsaicin patch (Qutenza) for the treatment of patients with coccygodyinia.

详细描述

This trial is a French, multicenter, randomized, controlled, bouble-blind and prospective study. Patients enrolled will be clinically followed for 5 months. The treatment duration per subject is 1 hour (1time).

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

盲法说明

Double-blind

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • >18 years old at the pre-inclusion visit
  • Presenting with chronic coccygodynia: pain in the coccygeal region, increased by sitting and or when rising from a sitting position and pain over the last ten days of intensity greater than or equal to four on the eleven-point numerical scale (from zero to ten) and having been present for more than 3 months.
  • Failure of previous treatments: NSAIDs, pressure-relieving cushions and/or infiltration or having a contraindication to these treatments, or not wishing to receive these treatments
  • Have never been treated with an 8% capsaicin patch for this indication
  • With at least one clinical sign suggestive of neuropathic pain (burning, painful cold, numbness, tingling, electric discharge, allodynia of the gluteal groove, allodynia to pressure on the coccyx)
  • Proficiency in reading and writing the French language
  • Be affiliated to the social security system
  • Have signed an informed consent form
  • Women must meet one of the following criteria at the time of inclusion:
  • be using adequate contraceptive measures, and have a negative pregnancy test (specify if urine or blood test) prior to receiving the first dose of trial medication;
  • or be post-menopausal (aged over 50 with amenorrhoea for at least 12 months after stopping all exogenous hormonal treatments)
  • or (if under 50) have been in amenorrhoea for at least 12 months after stopping all exogenous hormone treatments and with luteinising hormone (LH) and follicle stimulating hormone (FSH) levels corresponding to post-menopausal levels.
  • or have undergone irreversible surgical sterilisation by hysterectomy, bilateral oophorectomy or bilateral salpingectomy (this operation must be documented).

排除标准

  • Coccygodynia accompanied by a dermatological lesion in the intergluteal cleft (psoriasis, pilodinial cyste, wound)
  • Patients with other major pain disorders likely to interfere with pain assessment
  • Hypersensitivity to capsaicin or to one of the excipients
  • Adults under legal protection (guardianship, curatorship, legal protection)
  • Pregnant or breast-feeding women
  • Patients who have undergone total coccygectomy

研究组 & 干预措施

Capsaicin 179 mg cutaneous patch

Experimental

Capsaicin 179 mg cutaneous patch.

1 patch applied once for 1 hour at inclusion visit.

干预措施: Capsaicin 179 Mg Cutaneous Patch (Drug)

Capsaicin low concentration patch

Placebo Comparator

Capsaicin 0.04 cutaneous patch.

1 patch applied once for 1 hour at inclusion visit

干预措施: Capsaicin low concentration patch (capsaicin 0,04%, 3,2 mg/cm2) (Drug)

结局指标

主要结局

to demonstrate the analgesic effect at day 60 of 8% capsaicin patch (Qutenza) for the treatment of patients with coccygodyinia.

时间窗: Day 60

The difference in the proportion of subjects improved (PGIC≤2) in either treatment group at day 60. It is expected that there will be a difference of at least 20% between treatment arms.

次要结局

  • Analysis of primary and secondary endpoints according to the presence or absence of sacrococcygeal hypermobility.(At inclusion)
  • Evaluation of the tolerability of the 8% capsaicin patch compared to low concentration capsaicin patch (control) within the first 7 days(time 0 (prior to patch application), hour 1, 6, 12, 24, day 2 and day 7 and by collecting AEs during the study.time 0 (prior to patch application), hour 1, 6, 12, 24, day 2 and day 7 and through study completion (an average of 5 months))
  • Sensitivity study to compare results on the primary endpoint by comparing data from the PGI-C and a comparison of the two numerical pain assessments at Day 0 and Day 60.(Between Day 0 and Day 60)
  • Determination of the therapeutic response to 8% capsaicin patch(Day 60)
  • Evaluation of the analgesic effect over time and maintenance of effect in the two treatment groups over the entire study.(Day 2, Day 7, Day 15, Day 21, Day 30, Day 45, Day 60, Day 90, Day 120 and Day 150.)
  • Evaluate the safety of the capsaicin 8% patch compared with the control patch throughout the study.(Throughout the study (an average of 5 months))
  • Evaluation of the cost-utility of 8% capasaicin patch with common clinical practice over a time horizon of 5 months(Over a time horizon of 5 months)
  • Evaluation of health care consumption in the two treatment groups over the entire study period (5 months).(Over 5 months)

研究者

申办方类型
Other
责任方
Sponsor

研究点 (6)

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