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Completed

NCT Number: NCT01008553

A Confirmatory Study of Fentanyl in Participants With Post-herpetic Neuralgia, Complex Regional Pain Syndrome or Postoperative Pain Syndrome

The purpose of this study is to evaluate the efficacy and safety of fentanyl in opioid-naive participants with post-herpetic neuralgia, complex regional pain syndrome or post-operative pain syndrome who cannot obtain a sufficient analgesic effect by the treatment of non-opioid analgesics (drug used to control pain).

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Key information

Conditions

Postherpetic Neuralgia Autonomic Nervous System Diseases Complex Regional Pain Syndromes Complex Regional Pain Syndromes (CRPS) Nervous System Diseases Neuralgia Neuralgia, Postherpetic Neurologic Manifestations Neuromuscular Diseases Pain Pain, Postoperative Pathologic Processes Pathological Conditions, Signs and Symptoms Peripheral Nervous System Diseases Postoperative Complications Postoperative Pain Signs and Symptoms

Age range

20 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Aichi, Japan

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About this study

This is a multi-center (conducted in more than one center), double-blind (neither the participant nor the physician knows the assigned study drug), randomized (participants assigned study drug by chance), withdrawal study in opioid-naive participants with post-herpetic neuralgia (intense, typically intermittent pain along the course of a nerve caused by the varicella zoster virus), complex regional pain syndrome or post-operative pain syndrome. The study will consist of titration period (10-29 days) and double-blind period (12 weeks) and the visits will include Day 5-7, 8, 15, 22, 29 in titration period and Day 2-4, 8, 15, 22, 29, 43, 57, 71 and 85 in double-blind period. All the eligible participants will receive one-day adhesive transdermal patch (patch containing a drug that is put on the skin so the drug will enter the body through the skin) of either fentanyl at the dose ranging from 12.5 to 50 microgram/hour or matching placebo. Efficacy will be evaluated primarily by time to withdrawal due to insufficient analgesic efficacy. Participants' safety will be monitored throughout the study.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participants whose pain because of post-herpetic neuralgia, Complex Regional Pain Syndrome (CRPS) or post-operative pain syndrome is continuing for at least 12 weeks prior to informed consent
  • Participants who are continuously taking a non-opioid analgesic at the normal highest dose or more for at least 14 consecutive days prior to informed consent, or at a certain dose (except the use on an as-needed base) on consecutive days or participants who are continuously taking an analgesic adjuvant with a certain dosage and administration (except the use on an as-needed base) for at least 14 consecutive days prior to informed consent
  • Participants showing insufficient therapeutic efficacy of the non-opioid analgesic currently being used, and to requiring a continuous opioid analgesic as per the Investigator or Sub-investigator
  • Participants with an average pain intensity of 50 millimeter or more on the Visual Analog Scale in 24-hour daily living prior to informed consent
  • Participants who can be hospitalized to the 4th day after the initiation of titration period

Exclusion criteria

  • Participants who had an operation that may affect the assessment within 30 days before informed consent
  • Participants whose main cause of the pain to be assessed is considered attributable to psychogenic pain (physical pain that is caused, increased, or prolonged by mental, emotional, or behavioral factors)
  • Participants with asthma, bradyarrhythmia (slow irregular heart beat) and severe respiratory function disorders
  • Participants complicated with hepatic dysfunction such as fulminant hepatitis (inflammation of the liver) and liver cirrhosis (serious liver disorder in which connective tissue replaces normal liver tissue, and liver failure often occurs), or renal impairment such as nephritic syndrome, acute renal failure, and chronic renal failure
  • Participants with a history of hypersensitivity to fentanyl and other opioid analgesics

Treatment and study plan

Fentanyl

Drug

One-day adhesive transdermal patch containing fentanyl 12.5 to 50 mcg/hr applied to chest, abdomen, upper arm and thigh and replaced every day.

Placebo

Drug

Placebo patch indistinguishable from one-day adhesive transdermal patch containing fentanyl 12.5 to 50 mcg/hr applied to chest, abdomen, upper arm and thigh and replaced every day.

Primary outcomes

  1. Time From the Initial Day of Application in Double-Blind Period to Withdrawal Because of Insufficient Analgesic Efficacy

    Time frame: Day 1 up to Day 85 (double-blind period) and Day 92 (discontinuation of the study)

    Time from start of double-blind (researchers and participants were unaware of the treatment) period to withdrawal because of insufficient analgesic efficacy based on any of the pre-defined discontinuation criteria was noted.

Secondary outcomes

  1. Pain Visual Analog Scale (VAS) Score - Titration Period

    Time frame: Day 12-14 (Screening period) and Day 27-29 (Titration period)

    The intensity of average pain (degree of pain) felt by the participants in daily living throughout the day on a "100-millimeter (mm) VAS scale" by drawing a slash. The left margin (0 mm) was considered "No pain at all", and the right margin (100 mm) was considered "Severer pain than this is inconceivable". The length (mm) from the left margin to the slash is measured. Mean VAS score during 3 days before the end of Screening period and during 3 days before the end of titration period was reported.

  2. Pain Visual Analog Scale (VAS) Score - Double-Blind Period

    Time frame: Day 27-29 (Titration period) and Day 83-85 (double-blind period)

    The intensity of average pain (degree of pain) felt by the participants in daily living throughout the day on a "100-millimeter (mm) VAS scale" by drawing a slash. The left margin (0 mm) was considered "No pain at all", and the right margin (100 mm) was considered "Severer pain than this is inconceivable". The length (mm) from the left margin to the slash is measured. Mean VAS score during 3 days before the end of titration period and during 3 days before the end of double-blind period was reported.

  3. Number of Participants Evaluated as Per Participant's Overall Assessment - Titration Period

    Time frame: Day 1 and 29 or final evaluation (Titration period)

    The participant assessed his/her satisfaction with the therapeutic efficacy by the following 5 grades: "Extremely satisfied", "Satisfied", "Neither satisfied nor dissatisfied", "Dissatisfied" and "Dissatisfied very much". The results were reported as Category 1 = At least "Neither satisfied nor dissatisfied", which included participants with general evaluation of "Extremely satisfied" to "Neither satisfied nor dissatisfied", and Category 2 = At least "Satisfied", which included participants with general evaluation of "Extremely satisfied" to "Satisfied".

  4. Number of Participants Evaluated as Per Participant's Overall Assessment - Double-Blind Period

    Time frame: Day 1 and 85 or final evaluation (double-blind period)

    The participant assessed his/her satisfaction with the therapeutic efficacy by the following 5 grades: "Extremely satisfied", "Satisfied", "Neither satisfied nor dissatisfied", "Dissatisfied" and "Dissatisfied very much". The results were reported as Category 1 = At least "Neither satisfied nor dissatisfied", which included participants with general evaluation of "Extremely satisfied" to "Neither satisfied nor dissatisfied", and Category 2 = At least "Satisfied", which included participants with general evaluation of "Extremely satisfied" to "Satisfied".

  5. Number of Doses of Rescue Treatment Per Day - Titration Period

    Time frame: Day 1 and 29 or final evaluation (Titration period)

    If a breakthrough pain occurred or the analgesic efficacy became insufficient, a fast-acting oral morphine was administered. At such instances, one-time dose of the rescue treatment was administered as per the pre-defined criteria. During hospitalization, Investigator, Sub-investigator or Study Collaborator recorded in the medical record and during the out-patient period, the participants were instructed to describe the name of rescue treatment, date and time of treatment, and one-time dose in the participant's diary.

  6. Number of Doses of Rescue Treatment Per Day - Double-Blind Period

    Time frame: Day 1 and 85 or final evaluation (double-blind period)

    If a breakthrough pain occurred or the analgesic efficacy became insufficient, a fast-acting oral morphine was administered. At such instances, one-time dose of the rescue treatment was administered as per the pre-defined criteria. During hospitalization, Investigator, Sub-investigator or Study Collaborator recorded in the medical record and during the out-patient period, the participants were instructed to describe the name of rescue treatment, date and time of treatment, and one-time dose in the participant's diary.

  7. Brief Pain Inventory Short Form (BPI-sf) Score - Titration Period

    Time frame: Day 1 and 29 or final evaluation (Titration period)

    The BPI-sf total score is an average of the pain interference score (mean value for the nine BPI-sf questions [questions inquiring about the extent of interference with activities by pain, where the extent is ranked from 0 (does not interfere) to 10 (completely interferes)]) and pain subscale score (mean value for the scores for BPI-sf questions 3, 4, 5 and 6 [questions inquiring about the extent of pain, where the extent is ranked from 0 (no pain) to 10 (pain as bad as you can imagine)]). Total score ranges from 0 to 10 with higher values indicating more pain.

  8. Brief Pain Inventory Short Form (BPI-sf) Score - Double-Blind Period

    Time frame: Day 1 and 85 or final evaluation (double-blind period)

    The BPI-sf total score is an average of the pain interference score (mean value for the nine BPI-sf questions [questions inquiring about the extent of interference with activities by pain, where the extent is ranked from 0 (does not interfere) to 10 (completely interferes)]) and pain subscale score (mean value for the scores for BPI-sf questions 3, 4, 5 and 6 [questions inquiring about the extent of pain, where the extent is ranked from 0 (no pain) to 10 (pain as bad as you can imagine)]). Total score ranges from 0 to 10 with higher values indicating more pain.

  9. Short-Form 36-Item Health Survey Version 2.0 (SF-36v2) Score - Titration Period

    Time frame: Day 1 and 29 or final evaluation (Titration period)

    The SF-36v2 is 36-item form related to 8 health concepts (physical functioning, role physical, role emotional, general health, social functioning, bodily pain, vitality, mental health) and 2 summary scores (physical and mental component summary). Physical functioning, role physical and bodily pain contribute to physical component; role emotional, social functioning and mental health contribute to mental component; and social functioning, vitality, and general health contribute to both. All scores are based on a scale from 0 to 100, with higher scores defining more favorable health state.

  10. Short-Form 36-Item Health Survey Version 2.0 (SF-36v2) Score - Double-Blind Period

    Time frame: Day 1 and 85 or final evaluation (double-blind period)

    The SF-36v2 is 36-item form related to 8 health concepts (physical functioning, role physical, role emotional, general health, social functioning, bodily pain, vitality, mental health) and 2 summary scores (physical and mental component summary). Physical functioning, role physical and bodily pain contribute to physical component; role emotional, social functioning and mental health contribute to mental component; and social functioning, vitality, and general health contribute to both. All scores are based on a scale from 0 to 100, with higher scores defining more favorable health state.

  11. Number of Participants Evaluated as Per Physician's Overall Assessment - Titration Period

    Time frame: Day 29 or final evaluation (Titration period)

    Physician's global assessment of therapeutic efficacy (effectiveness) of the study drug was measured on a 2-point scale where 1 = effective and 2 = not effective.

  12. Number of Participants Evaluated as Per Physician's Overall Assessment - Double-Blind Period

    Time frame: Day 1 and 85 or final evaluation (double-blind period)

    Physician's global assessment of therapeutic efficacy (effectiveness) of the study drug was measured on a 2-point scale where 1 = effective and 2 = not effective.

Sponsors and collaborators

Lead sponsor

Janssen Pharmaceutical K.K.

Industry

Registry information

Official study title

A Verification Study of JNS020QD in Patients With Post-herpetic Neuralgia, Complex Regional Pain Syndrome (CRPS) or Postoperative Pain Syndrome

Important dates

Study start
2008
Primary completion
2010
Study completion
2010
First posted
Nov 6, 2009
Registry last updated
Jul 25, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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