A Study on Efficacy (Effectiveness), Safety, and Impact on Quality of Life Measures of Dilaudid CR (Controlled Release);, Hydromorphone HCl in Patients With Chronic Low Back Pain

Study Overview
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Brief Summary
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The purpose of the study was to characterize the safety, effectiveness, and impact on quality of life (QOL) measures of OROSÂ® hydromorphone HCL in patients with chronic low back pain.

Detailed Description
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This study was a short-term, non-randomized (each patient was assigned the same treatment from phase I through phase III by the researchers), non-comparative, open-label, repeated dose study of OROS® hydromorphone HCL consisting of 3 phases: Phase 1 - prior opioid stabilization phase (2-7 days); Phase 2 - OROS® hydromorphone HCL conversion, titration, and stabilization phase (3 - 14 days); Phase 3 - OROS® hydromorphone HCL maintenance therapy phase (28 days) Before Phase 1, patients must have had no change in their prescribed opioid regimen over the prior 30 days. During Phase 1, patients were to have demonstrated 2 consecutive days of stable baseline oral or transdermal opioid medication. During Phase 2, patients requiring =96 mg OROS® hydromorphone HCL every 24 hours converted to a once-daily dosing OROS® hydromorphone HCL dose at approximately a 5:1 morphine to hydromorphone equivalent ratio. OROS® hydromorphone HCL dose titration (25-100% baseline dose) was allowed every 2 days to achieve stabilization. OROS® hydromorphone HCL dose reduction was allowed during Phases 2 and 3 for opioid-related adverse events (AEs). Rescue medication, Dilaudid IR (immediate release) was allowed during all 3 phases. During Phase 3, patients attended 4 weekly study visits to provide diary information about study medication and rescue medication usage, daily pain relief scores and adverse events, and to receive weekly supplies of study medications. OROS® hydromorphone HCL tablets of 8,16, 32, or 64 mg depending on Phase I stable baseline oral or transdermal opioid medication, 2-7 days; study drug dose titration was allowed every 2 days to achieve stabilization in Phase II, 3-14 days; Phase III , maintenance therapy phase 28 days; study drug dose reduction was allowed during Phase 2 and 3 for opioid-related adverse events. Rescue medication of Dilaudid IR (immediate release) 2, 4, 8mg tablets were allowed during all phase.

Official Title
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An Open-Label, Repeated-Dose Trial to Characterize the Efficacy and Safety, and Impact on Quality of Life Measures of Dilaudid CR (Hydromorphone HCI) in Patients With Chronic Low Back Pain

Conditions
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Low Back Pain

Intervention / Treatment
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* Drug: OROS® hydromorphone HCL; Dilaudid CR (controlled release); Dilaudid IR (immediate release) as rescue medicine


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient with chronic low back pain who were currently receiving strong oral or transdermal opioid analgesics on a daily basis, or patients suitable for advancement of therapy to step 3 of the World Health Organization (WHO) analgesic ladder were considered for enrollment in the study. Patients requiring >8 and =96 mg of OROS® hydromorphone HCL every 24 hours were enrolled in the study. Exclusion Criteria: Patients intolerant or hypersensitive to hydromorphone or other opioid agonists and patients with a known history of alcohol or drug abuse within the previous year were excluded from study.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Intervention/Treatment |
| --- |
|Drug: OROS® hydromorphone HCL; Dilaudid CR (controlled release); Dilaudid IR (immediate release) as rescue medicine|nan|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The mean pain relief rating derived from daily recorded patient diaries during the 4 week maintenance phase; |  |  | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The overall global evaluation and Brief Pain Inventory (BPI) of study drug, as assessed by both patients and Investigators at weekly visits during the 4 week maintenance phase. |  |  | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Pain