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A Study to Evaluate Efficacy and Safety of a Single Application of Capsaicin 8%Transdermal Delivery System Compared to Placebo in Reducing Pain Intensity in Subjects With Painful Diabetic Peripheral Neuropathy (PDPN) (STEP)

12 ottobre 2015 aggiornato da: Astellas Pharma Inc

A Phase III, Double-blind, Randomized, Placebo-controlled, Multicenter Study Evaluating the Efficacy and Safety of QUTENZA® in Subjects With Painful Diabetic Peripheral Neuropathy

The purpose of the study is to assess efficacy and safety of a single treatment of Capsaicin 8% transdermal delivery system in reducing pain from damaged nerves (neuropathic pain) caused by diabetes.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Participants were divided into 2 groups of approximately equal size. In the first group, participants received a Capsaicin 8% patch applied for 30 minutes to the feet; in the second group, participants received a placebo patch applied for 30 minutes to the feet. Participants were involved in the study for approximately 12 weeks and have visited the clinic approximately 6 times.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

369

Fase

  • Fase 3

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

  • Stati Uniti
    • Alabama
      • Anniston, Alabama, Stati Uniti, 36207
        • Site: 125
    • California
      • Fresno, California, Stati Uniti, 93720
        • Site: 131
      • Long Beach, California, Stati Uniti, 90806
        • Site: 123
      • Los Angeles, California, Stati Uniti, 90033
        • Site: 116
      • Orange, California, Stati Uniti, 92868
        • Site: 112
      • Walnut Creek, California, Stati Uniti, 94597
        • Site: 130
    • Connecticut
      • Milford, Connecticut, Stati Uniti, 06460
        • Site: 113
      • New London, Connecticut, Stati Uniti, 06320
        • Site: 119
    • Florida
      • Boynton Beach, Florida, Stati Uniti, 33435
        • Site: 117
      • Bradenton, Florida, Stati Uniti, 34205
        • Site: 124
      • Clearwater, Florida, Stati Uniti, 33765
        • Site: 107
      • Jupiter, Florida, Stati Uniti, 33458
        • Site: 120
      • Orlando, Florida, Stati Uniti, 32806
        • Site: 108
      • Oviedo, Florida, Stati Uniti, 32765
        • Site: 132
      • St. Petersburg, Florida, Stati Uniti, 33709
        • Site: 127
      • Tampa, Florida, Stati Uniti, 33606
        • Site: 122
    • Hawaii
      • Honolulu, Hawaii, Stati Uniti, 96814
        • Site: 133
    • Massachusetts
      • New Bedford, Massachusetts, Stati Uniti, 02740
        • Site: 126
    • Michigan
      • Ann Arbor, Michigan, Stati Uniti, 48104
        • Site: 115
    • Missouri
      • Hazelwood, Missouri, Stati Uniti, 63042
        • Site: 128
    • New York
      • New York, New York, Stati Uniti, 10029
        • Site:111
    • North Carolina
      • Winston-Salem, North Carolina, Stati Uniti, 27103
        • Site: 110
    • Ohio
      • Kettering, Ohio, Stati Uniti, 45429
        • Site: 121
    • Texas
      • Dallas, Texas, Stati Uniti, 75230
        • Site:106
      • Houston, Texas, Stati Uniti, 77030
        • Site: 118
      • Houston, Texas, Stati Uniti, 77098
        • Site: 114
      • Lubbock, Texas, Stati Uniti, 79410
        • Site: 103
      • San Antonio, Texas, Stati Uniti, 78228
        • Site: 105
      • San Antonio, Texas, Stati Uniti, 78229
        • Site: 102

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Diagnosis of painful, distal, symmetrical, sensorimotor polyneuropathy which is due to diabetes, for at least 1 year prior to screening visit
  • Average Numeric Pain Rating Scale (NPRS) score over the last 24 hours of ≥4 at the screening and the baseline visit

Exclusion Criteria:

  • Primary pain associated with PDPN (Painful Diabetic Peripheral Neuropathy) in the ankles or above
  • Pain that could not be clearly differentiated from, or conditions that might interfere with the assessment of PDPN (Painful Diabetic Peripheral Neuropathy), neurological disorders unrelated to diabetic neuropathy (e.g., phantom limb pain from amputation); skin condition in the area of the neuropathy that could alter sensation (e.g., plantar ulcer)
  • Current or previous foot ulcer as determined by medical history and medical examination
  • Any amputation of lower extremity
  • Severe renal disease as defined by a creatinine clearance of <30 ml/min calculated according to the Cockcroft-Gault formula
  • Clinically significant cardiovascular disease within 6 months prior to screening visit defined as cerebrovascular accident, unstable or poorly controlled hypertension, transient ischemic attack, myocardial infarction, unstable angina, current arrhythmia, any heart surgery including coronary artery bypass graft surgery, percutaneous coronary angioplasty/stent placement, or valvular heart disease
  • Significant peripheral vascular disease (intermittent claudication or lack of pulsation of either the dorsalis pedis or posterior tibial artery, or ankle-brachial systolic blood pressure index of <0.80)
  • Clinically significant foot deformities, including hallux rigidus, hallux valgus, or rigid toe as determined by physical examination as judged by the investigator
  • Clinically significant ongoing, uncontrolled or untreated abnormalities in cardiac, renal, hepatic, or pulmonary function that may interfere either with the ability to complete the study or the evaluation of adverse events
  • Diagnosis of any poorly controlled major psychiatric disorder
  • Active substance abuse or history of chronic substance abuse within 1 year prior to screening visit or any prior chronic substance abuse (including alcoholism) likely to re-occur during the study period as judged by the investigator
  • Hypersensitivity to capsaicin (i.e., chili peppers or over-the-counter [OTC] capsaicin products), any Capsaicin 8% transdermal delivery system excipients, Eutectic Mixture of Local Anaesthetics (EMLA) ingredients or adhesives
  • Use of any topical pain medication, such as non-steroidal anti-inflammatory drugs, menthol, methyl salicylate, local anesthetics, steroids or capsaicin products on the painful areas within 7 days preceding the first patch application at the baseline visit
  • Use of oral or transdermal opioids exceeding a total daily dose of morphine of 80 mg/day, or equivalent; or any parenteral opioids, regardless of dose, within 7 days preceding the first patch application at the baseline visit
  • Skin areas to be treated with Capsaicin 8% transdermal delivery system showing changes such as crusting or ulcers
  • Planned elective surgery during the trial

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Quadruplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Capsaicin 8%
Capsaicin 8% patch was applied for 30 minutes to the painful area(s) on Day 1
Droga: Capsaicin 8%
Capsaicin 8% transdermal delivery system
Altri nomi:
  • Qutenza
Comparatore placebo: Placebo
Placebo patch was applied for 30 minutes to the painful area(s) on Day 1
Droga: Placebo
Placebo Patch

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Percent Change in the Average Daily Pain Score From Baseline to Between Weeks 2 and 8
Lasso di tempo: Baseline to between Weeks 2 to 8
Percent change in the average daily pain score from baseline to between Weeks 2 and 8, measured using Question 5 of the Brief Pain Inventory-Diabetic Neuropathy (BPI-DN). Participants assessed their pain due to diabetes in the last 24 hours on a numeric rating scale from 0 (no pain) to 10 (pain as bad as you can imagine).
Baseline to between Weeks 2 to 8

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Percent Change in the Average Daily Pain Score From Baseline to Between Weeks 2 and 12
Lasso di tempo: Baseline to between Weeks 2 and 12
Percent Change in the Average Daily Pain Score from baseline to between Weeks 2 and 12 measured using Question 5 of the Brief Pain Inventory-Diabetic Neuropathy (BPI-DN). Participants assessed their pain due to diabetes in the last 24 hours on a numeric rating scale from 0 (no pain) to 10 (pain as bad as you can imagine).
Baseline to between Weeks 2 and 12
Weekly Percent Change From Baseline in Average Daily Pain Score
Lasso di tempo: Baseline to Weeks 2, 3, 4, 5, 6, 7, 8, 9,10, 11 and 12
Weekly Percent Change from baseline in average daily pain score from baseline to Week 12 measured using Question 5 of the Brief Pain Inventory-Diabetic Neuropathy (BPI-DN). Participants assessed their pain due to diabetes in the last 24 hours on a numeric rating scale from 0 (no pain) to 10 (pain as bad as you can imagine).
Baseline to Weeks 2, 3, 4, 5, 6, 7, 8, 9,10, 11 and 12
Weekly Average of Average Daily Pain at Baseline and Every Week After Baseline
Lasso di tempo: Baseline and Weeks 2, 4, 8 and 12
Weekly average of average daily pain score at Baseline and Weeks 2,4,8 and 12 measured using Question 5 of the Brief Pain Inventory-Diabetic Neuropathy (BPI-DN). Participants assessed their pain due to diabetes in the last 24 hours on a numeric rating scale from 0 (no pain) to 10 (pain as bad as you can imagine).
Baseline and Weeks 2, 4, 8 and 12
Percentage of Participants With 30% Reduction in Average Daily Pain Score.
Lasso di tempo: Baseline, Weeks 2-8 and Weeks 2-12
Percentage of participants achieving 30% decrease in the average daily pain score in Weeks 2 and 8 and Weeks 2 and 12 measured using Question 5 of the Brief Pain Inventory-Diabetic Neuropathy (BPI-DN). Participants assessed their pain on a numeric rating scale from 0 (no pain) to 10 (pain as bad as you can imagine).
Baseline, Weeks 2-8 and Weeks 2-12
Percentage of Participants With 50% Reduction in Average Daily Pain Score.
Lasso di tempo: Baseline, Weeks 2-8 and Weeks 2-12
Percentage of participants achieving 50% decrease in the average daily pain score in Weeks 2 and 8 and Weeks 2 and 12 measured using Question 5 of the Brief Pain Inventory-Diabetic Neuropathy (BPI-DN). Participants assessed their pain on a numeric rating scale from 0 (no pain) to 10 (pain as bad as you can imagine).
Baseline, Weeks 2-8 and Weeks 2-12
Overall Participant Status Assessed Using Patient Global Impression of Change (PGIC) Self-assessment Questionnaire in Week 2
Lasso di tempo: Baseline to Week 2
Overall participant status assessed using Patient Global Impression of Change (PGIC) self-assessment questionnaire which was used by participants to report on 7 categories listed as follows; Very Much Improved, Much Improved, Minimally Improved, No Change, Minimally Worse, Much Worse and Very Much Worse in Week 2
Baseline to Week 2
Overall Participant Status Assessed Using Patient Global Impression of Change (PGIC) Self-assessment Questionnaire in Week 8
Lasso di tempo: Baseline to Week 8
Overall participant status assessed using Patient Global Impression of Change (PGIC) self-assessment questionnaire which was used by participants to report on 7 categories listed as follows; Very Much Improved, Much Improved, Minimally Improved, No Change, Minimally Worse, Much Worse and Very Much Worse in Week 8
Baseline to Week 8
Overall Participant Status Assessed Using Patient Global Impression of Change (PGIC) Self-assessment Questionnaire in Week 12
Lasso di tempo: Baseline to Week 12
Overall participant status assessed using Patient Global Impression of Change (PGIC) self-assessment questionnaire which was used by participants to report on 7 categories listed as follows; Very Much Improved, Much Improved, Minimally Improved, No Change, Minimally Worse, Much Worse and Very Much Worse in Week 12
Baseline to Week 12
Change From Baseline in the European Quality Of Life (QOL) Questionnaire in 5 Dimensions (EQ-5D) With Visual Analog Scale (VAS) to Weeks 2, 8 and 12
Lasso di tempo: Baseline to Weeks 2, 8 and 12
Change from Baseline in the European Quality Of Life (QOL) questionnaire in 5 dimensions (EQ-5D) with Visual Analog Scale (VAS) to Weeks 2, 8 and 12. EQ-5D self-reported questionnaire is used to measure health-related quality of life by measuring 5 dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The EQ-5D questionnaire includes a visual analog scale (VAS) which records participants self-rated health status on a graduated (0-100) scale with higher scores indicating higher Health-Related Quality of Life (HRQoL).
Baseline to Weeks 2, 8 and 12
Change in Hospital Anxiety and Depression Scale (HADS) Anxiety Scale From Baseline to Weeks 2, 8 and 12
Lasso di tempo: Baseline to Weeks 2, 8 and 12
The Hospital Anxiety and Depression Scale (HADS) is a self-report scale developed for the assessment of anxiety and depression, that contain 14 items rated on a 4-point Likert-type scale. There are 2 subscales,one assessing depression and the other anxiety. The 7-item depression and anxiety subscales yield scores of 0 to 21 that are interpreted with the following cut-off points: 0 to 7, normal; 8 to 10, mild mood disturbance; 11 to 14, moderate mood disturbance; and 15 to 21, severe mood disturbance.
Baseline to Weeks 2, 8 and 12
Change in Hospital Anxiety and Depression Scale (HADS) Depression Scale From Baseline to Weeks 2, 8 and 12.
Lasso di tempo: Baseline to Weeks 2, 8 and 12
The Hospital Anxiety and Depression Scale (HADS) is a self-report scale developed for the assessment of anxiety and depression, it contains 14 items rated on a 4-point Likert-type scale. There are 2 subscales,one assessing depression and the other anxiety. The 7-item depression and anxiety subscales yield scores of 0 to 21 that are interpreted with the following cut-off points: 0 to 7, normal; 8 to 10, mild mood disturbance; 11 to 14, moderate mood disturbance; and 15 to 21, severe mood disturbance.
Baseline to Weeks 2, 8 and 12
Treatment Satisfaction Assessment Based on Self-Assessment of Treatment (SAT II) Questionnaire at Baseline, Weeks 8 and 12
Lasso di tempo: Baseline, Weeks 8 and 12
Treatment satisfaction assessment based on Self-Assessment Treatment (SAT II) questionnaire and the question "Over the past 7 days, how much has the study treatment improved your pain level?"
Baseline, Weeks 8 and 12
Percent Change in Average Sleep Interference Score From Baseline to Between Weeks 2-8 and Weeks 2-12
Lasso di tempo: Baseline, Weeks 2-8 and Weeks 2-12
Percent change in average sleep interference was measured by Question 9F of the Brief Pain Inventory-Diabetic Neuropathy (BPI DN) and was used to assess pain and sleep interference index. Daily sleep interference rating scale consists of an 11-point numerical scale with which the patient describes how pain related to diabetes has interfered with their sleep during the past 24 hours. On a scale 0 identifies "pain does not interfere with sleep" and 10 identifies "pain completely interferes with sleep". Average sleep interference score is assessed from baseline to Weeks 2-8 and Weeks 2-12.
Baseline, Weeks 2-8 and Weeks 2-12
Tolerability of Patch Application Assessed by Dermal Assessment on Day 1, 15 Minutes and 60 Minutes After Patch Removal.
Lasso di tempo: Day 1, 15 minutes and 60 minutes after patch removal
Tolerability of patch application was assessed by dermal assessment (0 to 7 point severity score on Dermal Assessment Scale). Data reported is based on the number of participants in the combined category with a score ≥ 4 (Definite edema or higher), 15 and 60 minutes after patch removal.
Day 1, 15 minutes and 60 minutes after patch removal
Change From Pre-application in"Pain Now" Score
Lasso di tempo: Pre-application and 15 minutes and 60 minutes after patch removal
Change from pre-application in"Pain Now" score was measured on a scale from 0-10 where 0 equates to "No Pain" and 10 to "Pain as bad as you can imagine". Participants were asked to provide pain ratings relative only to the area of pain undergoing treatment.
Pre-application and 15 minutes and 60 minutes after patch removal
Number of Participants Who Used Rescue Pain Medication Days 1 Through 5
Lasso di tempo: Days 1 - 5
Summarized number of participants who used Rescue Pain Medications for Pain
Days 1 - 5
Safety Assessed Through Adverse Events (AE) and Serious Adverse Events (SAE), Vital Signs, and Laboratory Analyses From Baseline to Week 12
Lasso di tempo: Baseline to Week 12
Number of patients assessed for Safety through Adverse Events (AE) and Serious Adverse Events (SAE), vital signs, and laboratory analyses from baseline to week 12
Baseline to Week 12

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Astellas Pharma Inc

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Collegamenti utili

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 febbraio 2012

Completamento primario (Effettivo)

1 febbraio 2014

Completamento dello studio (Effettivo)

1 febbraio 2014

Date di iscrizione allo studio

Primo inviato

12 febbraio 2012

Primo inviato che soddisfa i criteri di controllo qualità

14 febbraio 2012

Primo Inserito (Stima)

15 febbraio 2012

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

4 novembre 2015

Ultimo aggiornamento inviato che soddisfa i criteri QC

12 ottobre 2015

Ultimo verificato

1 ottobre 2015

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • E05-CL-3004

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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