Эта страница была переведена автоматически, точность перевода не гарантируется. Пожалуйста, обратитесь к английской версии для исходного текста.

Efficacy of Transcranial Direct-Current Stimulation (tDCS) for Provoked Vestibulodynia : a Triple Blind Randomized Controlled Trial (PVD/tDCS)

1 мая 2017 г. обновлено: Mélanie Morin, Université de Sherbrooke
Provoked vestibulodynia (PVD) is the most common form of vulvodynia and despite its high prevalence and important sexual, conjugal and psychological deleterious repercussions, effective evidence-based interventions remain limited. For a high proportion of women, significant pain persists despite the currently available treatments. Transcranial direct-current stimulation (tDCS) was shown to be effective in various chronic pain conditions. So far, only one case report study has shown significant pain reduction in women with vulvodynia. The main goal of this randomized controlled trial is to evaluate the efficacy of tDCS in women with PVD compared to sham tDCS. Forty women diagnosed with PVD, by a gynecologist following a standardized protocol will be randomized to either active or sham tDCS for ten 20 minute sessions of 2 mA stimulation over a 2-week period. Outcome measures will be collected at baseline, after treatment and at 3-month follow-up. The primary outcome is pain during intercourse assessed with a numerical rating scale (NRS). Secondary measurements focus on sexual function, vestibular pain sensitivity, psychological distress, treatment satisfaction and Patient Global Impression of Change (PGIC). The investigators expect that active tDCS treatment will significantly reduce pain during intercourse (post-treatment and 3-month follow-up compared to pre-treatment assessment). This trial will provide important information for determining the efficacy of a novel and promising intervention for women with PVD.

Обзор исследования

Статус

Завершенный

Условия

Вмешательство/лечение

Тип исследования

Интервенционный

Регистрация (Действительный)

40

Фаза

  • Непригодный

Контакты и местонахождение

В этом разделе приведены контактные данные лиц, проводящих исследование, и информация о том, где проводится это исследование.

Места учебы

  • Канада
    • Quebec
      • Sherbrooke, Quebec, Канада, J1H 5N4
        • Centre Hospitalier Universitaire de Sherbrooke
      • Sherbrooke, Quebec, Канада, J1H 5N4
        • Centre hospitalier Universitaire de Sherbroke

Критерии участия

Исследователи ищут людей, которые соответствуют определенному описанию, называемому критериям приемлемости. Некоторыми примерами этих критериев являются общее состояние здоровья человека или предшествующее лечение.

Критерии приемлемости

Возраст, подходящий для обучения

От 17 лет до 45 лет (Ребенок, Взрослый)

Принимает здоровых добровольцев

Нет

Полы, имеющие право на обучение

Женский

Описание

Inclusion Criteria:

  1. Experience moderate to severe pain in at least 90% of attempted sexual intercourse;
  2. Experience moderate to severe pain during cotton swab test, in one or more regions of the vestibule (minimum of 5/10 on a subjective numeric scale of pain intensity);
  3. Pain limited to the vestibule during vaginal intercourse and during activities exerting pressure on the vestibule (tampon insertion, tight jeans or pants, cycling, horseback riding);
  4. Presence of PVD for at least 6 months and diagnosed according to the standardized gynecological examination protocol by one of our staff gynecologists;
  5. Have a stable sexual partner with regular sexual activity including penetration.

Exclusion Criteria:

  1. Other pelvic pathology associated with pelvic pain (e.g., deep dyspareunia);
  2. Chronic pain conditions (e.g. fibromyalgia, low back pain, chronic migraines);
  3. Use of medication that can influence the perception of pain (eg analgesic, opioids, antiepileptic, muscle relaxant);
  4. Pregnancy for less than one year and breastfeeding;
  5. Anterior vulvar or vaginal surgery;
  6. Refusal to refrain from other treatments one month prior to first treatment study until the last 3-month follow-up assessment;
  7. Important urogynecologic symptoms (urinary or anal incontinence, urinary urgency, pelvic organ prolapse, active urinary tract or vaginal infection or earlier in the last 3 months, etc.);
  8. Contraindications to tDCS (e.g. metallic implant in or near the skull, history of epilepsy, pacemaker);
  9. Previously received tDCS treatment.

Учебный план

В этом разделе представлена ​​подробная информация о плане исследования, в том числе о том, как планируется исследование и что оно измеряет.

Как устроено исследование?

Детали дизайна

  • Основная цель: Уход
  • Распределение: Рандомизированный
  • Интервенционная модель: Параллельное назначение
  • Маскировка: Четырехместный

Оружие и интервенции

Группа участников / Армия
Вмешательство/лечение
Экспериментальный: Intervention
Participants will receive active transcranial direct-current stimulation (tDCS) for ten 20 minute sessions of 2 mA stimulation over a 2-week period.
Устройство: Active tDCS or Sham tDCS
tDCS is a painless technique which consists in applying low direct-current through electrodes (one electrode serving as an anode, the other as a cathode) placed on the scalp to target the cerebral cortex. In patients with chronic pain, the anode is commonly placed over the motor cortex (M1) (Valeriani et al., 1999).
Другие имена:
  • neuroConn; Model no: 0008; Serial no:0169
Фальшивый компаратор: Placebo
Participants will receive sham transcranial direct-current stimulation (tDCS) for ten 20 minute sessions of 2 mA stimulation over a 2-week period.
Устройство: Active tDCS or Sham tDCS
tDCS is a painless technique which consists in applying low direct-current through electrodes (one electrode serving as an anode, the other as a cathode) placed on the scalp to target the cerebral cortex. In patients with chronic pain, the anode is commonly placed over the motor cortex (M1) (Valeriani et al., 1999).
Другие имена:
  • neuroConn; Model no: 0008; Serial no:0169

Что измеряет исследование?

Первичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Pain during intercourse (Numeric rating scale)
Временное ограничение: Change in the NRS scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Pain during intercourse will be assessed using a numeric rating scale (NRS) ranging from 0 to 10, where 0 is no pain at all, and 10 is the worst pain ever. This method for measuring pain has been shown to detect significant treatment effects in women with PVD and demonstrates a significant positive correlation with other pain intensity measures. Pain during intercourse is the main symptom of PVD and the one that most interferes with quality of life, hence the most relevant measure of functional outcome (Bergeron et al., 2008; Bergeron et al., 2001; Morin et al., 2010; Morin et al., 2011).
Change in the NRS scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment

Вторичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Pain (McGill-Melzack questionnaire)
Временное ограничение: Change in the McGill-Melzack scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
The McGill-Melzack questionnaire allows the assessment of sensory, affective and evaluative components of pain. This world-renowned questionnaire, studied for its validity, reliability and responsiveness to change, is commonly used in RCTs (Bergeron et al., 2001; Melzack, 1975; Davidoff et al., 1987; Hays et al., 1994; Bansal et al., 2009; Moy et al., 2011; Foster et al., 2010).
Change in the McGill-Melzack scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Vestibular sensitivity (algometer)
Временное ограничение: Change in the pain threshold and pain tolerance scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
A gradual pressure (1 to 1000 g) will be applied to three distinct points of the vestibule at the 3, 6 and 9 o'clock positions (Cyr et al., 2014). Each of these pressure points will be applied randomly (e.g. 3,6,9 or 3,9,6 or 6,9,3.). During this procedure, each participant will be asked to indicate when they start to feel pain (pain threshold) and subsequently the maximal pressure that can be tolerated (pain tolerance). Pain intensity is assessed throughout the test using a Computerized Visual analog scale (CoVas). This assessment has shown good reliability and validity (Cyr et al., 2014).
Change in the pain threshold and pain tolerance scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Female Sexual Function Index (FSFI)
Временное ограничение: Change in the FSFI scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
The Female Sexual Function Index (FSFI) is a multidimensional measure of sexual function evaluating desire, arousal, lubrication, orgasm, satisfaction and pain. In addition to good psychometric properties (reliability, internal consistency and responsiveness to change (Rosen et al., 2000; Goldfinger et al, 2009), normative data are available for this questionnaire suggesting clinical level of dysfunctions (Wiegel et al., 2005).
Change in the FSFI scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Pain Catastrophizing Scale (PCS)
Временное ограничение: Change in the PCS scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Pain catastrophizing will be assessed using the Pain Catastrophizing Scale (Sullivan, Bishop, & Pivik, 1995), which consists of 13 items measuring exaggerated negative thoughts and feelings about the meaning of pain. Items are scored on a 5-point scale with the end points (0) not at all and (4) all the time. The PCS is a reliable and valid measure that has demonstrated a stable factorial structure across clinical and general populations, including a French population (French et al., 2005; Osman et al., 2000; Sullivan, et al., 1995).
Change in the PCS scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Spielberg State-Trait Anxiety Inventory (IASTA)
Временное ограничение: Change in the IASTA state and IASTA trait scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Anxiety will be assessed using the Spielberger State-Trait Anxiety Inventory (STAI - (Spielberger, Gorsuch, & Lushene, 1970); ASTA - (Gauthier & Bouchard, 1993)). The STAI is a 40-item, well-known and widely used measure of state and trait anxiety that has demonstrated very good psychometric properties (Cronbach's alpha State = .93, Trait = .97) in various clinical and non-clinical samples including pain populations (Gauthier & Bouchard, 1993; Greenberg & Burns, 2003; Rule & Traver, 1983; Tanaka-Masumi & Kameoka, 1986).
Change in the IASTA state and IASTA trait scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Beck Depression Inventory questionnaire (BDI-II)
Временное ограничение: Change in the BDI scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Depression or depression symptoms will be measured with the Beck Depression Inventory-II (BDI-II). The BDI-II is comprised of 21 items, with scores for most items ranging from 0 (low intensity) to 3 (high intensity) (Beck, Steer & Brown, 1996; Beck, Steer & Garvin, 1988). This measure of depression has been validated for use in chronic pain populations (Turner & Romano, 1984).
Change in the BDI scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Pain Anxiety Symptoms Scale (PASS-20)
Временное ограничение: Change in the PASS-20 scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
The Pain Anxiety Symptoms Scale (PASS-20), evaluating fear of pain, also shows good psychometric properties (Coons, Hadjistavropoulos & Asmundson, 2004; McCracken & Dhingra, 2002).
Change in the PASS-20 scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Patient's global impression of change (PGIC)
Временное ограничение: Change in the PGIC scores from 2-week post-treatment to 3-month post-treatment
Patient self-reported improvement [scale of 0 (completely dissatisfied) to 10 (completely satisfied)] and treatment satisfaction [scale of 0 (worse) to 10 (complete cure)] will be measured at the 2-week post-treatment and 3-month post-treatment structured interview in order to assess the clinical significance of results.
Change in the PGIC scores from 2-week post-treatment to 3-month post-treatment
Global Measure of Sexual Satisfaction scale (GMSS)
Временное ограничение: Change in the GMSS scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment
Sexual satisfaction will be assessed using the Global Measure of Sexual Satisfaction scale, which consists of 5 items assessing global sexual satisfaction. Internal consistency of this scale is high (alpha = 0.90), as is test-retest reliability (r = 0.84) (Lawrance & Byers, 1998).
Change in the GMSS scores from pre- to 2-week post-treatment, and from pre-treatment to 3-month post-treatment

Соавторы и исследователи

Здесь вы найдете людей и организации, участвующие в этом исследовании.

Спонсор

Université de Sherbrooke

Соавторы

Centre de recherche du Centre hospitalier universitaire de Sherbrooke

Публикации и полезные ссылки

Лицо, ответственное за внесение сведений об исследовании, добровольно предоставляет эти публикации. Это может быть что угодно, связанное с исследованием.

Общие публикации

Полезные ссылки

Даты записи исследования

Эти даты отслеживают ход отправки отчетов об исследованиях и сводных результатов на сайт ClinicalTrials.gov. Записи исследований и сообщаемые результаты проверяются Национальной медицинской библиотекой (NLM), чтобы убедиться, что они соответствуют определенным стандартам контроля качества, прежде чем публиковать их на общедоступном веб-сайте.

Изучение основных дат

Начало исследования

1 ноября 2014 г.

Первичное завершение (Действительный)

1 июня 2016 г.

Завершение исследования (Действительный)

1 ноября 2016 г.

Даты регистрации исследования

Первый отправленный

4 сентября 2015 г.

Впервые представлено, что соответствует критериям контроля качества

4 сентября 2015 г.

Первый опубликованный (Оценивать)

7 сентября 2015 г.

Обновления учебных записей

Последнее опубликованное обновление (Действительный)

2 мая 2017 г.

Последнее отправленное обновление, отвечающее критериям контроля качества

1 мая 2017 г.

Последняя проверка

1 мая 2017 г.

Дополнительная информация

Термины, связанные с этим исследованием

Ключевые слова

Дополнительные соответствующие термины MeSH

Другие идентификационные номера исследования

  • 14-169

Эта информация была получена непосредственно с веб-сайта clinicaltrials.gov без каких-либо изменений. Если у вас есть запросы на изменение, удаление или обновление сведений об исследовании, обращайтесь по адресу register@clinicaltrials.gov. Как только изменение будет реализовано на clinicaltrials.gov, оно будет автоматически обновлено и на нашем веб-сайте. .

Клинические исследования Active tDCS or Sham tDCS

Искать похожие исследования

Спонсоры и соавторы

Заболевания

Медикаментозные вмешательства

CROs by country

CROs in Peru

Заболевания

Редкие заболевания

Медикаментозные вмешательства

Пищевые добавки

Спонсор / Соавторы

Места

Подписаться