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Duloxetine Versus Placebo in Chronic Low Back Pain

18 de noviembre de 2009 actualizado por: Eli Lilly and Company

Effect of Duloxetine 60 mg to 120 mg Once Daily in Patients With Chronic Low Back Pain

The primary purpose of your participation in this study is to help answer the following research question, and not to provide you treatment for your condition.

Whether duloxetine once daily can help patients with Chronic Low Back Pain.

Patients who do not have their pain reduced by at least 30% by week 7 will be given 120 mg dose for the duration of the study. After the 13 week double blind period, patients randomized to placebo will switch to duloxetine 60 mg or 120 mg in the 41-week extension period.

Descripción general del estudio

Estado

Terminado

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Actual)

236

Fase

  • Fase 3

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

      • Ellwangen, Alemania, 73479
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Graefelfing, Alemania, 82166
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Hamburg, Alemania, 22143
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Wiesbaden, Alemania, 65191
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Curitiba, Brasil, 80060240
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • San Paulo, Brasil, 04027-000
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Sao Paulo, Brasil, 04026-000
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Amiens, Francia, 80054
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Marseille, Francia, 13008
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Paris, Francia, 75014
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Saint Affrique, Francia, 12400
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Saint-Etienne, Francia, 42055
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Mexico City, México, 06700
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Monterrey, México, 64460
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • San Pedro Garza Garcia, México, 66260
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Amsterdam, Países Bajos, 1105 AZ
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p
      • Rotterdam, Países Bajos, 3039 BD
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your p

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Male/Female outpatients 18 years of age with chronic low back pain
  • Females of child bearing potential must test negative on a pregnancy test at visit 1.

Exclusion Criteria:

  • Have a serious or unstable diseases of the heart or blood vessels, liver, kidney, lungs, or blood-related illness
  • Problems with decreased blood flow to arms and legs (peripheral vascular disease), or other medical conditions
  • Psychiatric conditions that, in the opinion of the investigator, would affect your participation or be likely to lead to hospitalization during the course of the study
  • Have acute liver injury (such as hepatitis) or severe cirrhosis
  • Have had previous exposure to duloxetine
  • Have a body mass index (BMI) over 40
  • Have a major depressive disorder
  • Require daily narcotics
  • Have suicidal risk
  • Have a presence of any factors/conditions, medical or other, that in the judgment of the investigator may interfere with performance of study outcome measures

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación de un solo grupo
  • Enmascaramiento: Cuadruplicar

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Duloxetine
30 mg, every day (QD), by mouth (PO) for 1 week followed by 60 mg, QD, PO, 6 weeks then 60 mg (responders) or 120 mg (non-responders), QD, PO, 6 weeks during the placebo-controlled phase, then 60 mg or 120 mg, QD, PO, 41 weeks during the extension phase
30 mg, every day (QD), by mouth (PO) for 1 week followed by 60 mg, QD, PO, 6 weeks then 60 mg (responders) or 120 mg (non-responders), QD, PO, 6 weeks during the placebo-controlled phase, then 60 mg or 120 mg, QD, PO, 41 weeks during the extension phase
Otros nombres:
  • Platillo
  • LY248686
Comparador de placebos: Placebo
every day (QD), by mouth (PO), 13 weeks
every day (QD), by mouth (PO), 13 weeks

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Change From Baseline to Week 13 in Brief Pain Inventory (BPI), 24-hour Average Pain Scores
Periodo de tiempo: Baseline, Week 13
A self-reported scale that measures the severity of pain based on the average pain over the past 24-hours. The severity scores range from 0 (no pain) to 10 (pain as severe as you can imagine).
Baseline, Week 13

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Patient's Global Impression of Improvement (PGI-I)
Periodo de tiempo: Week 13
A scale that measures the patient's perception of improvement at the time of assessment. The score ranges from 1 (very much better) to 7 (very much worse).
Week 13
Change From Baseline to Week 13 and Week 54 Endpoints in Roland Morris Disability Questionnaire-24 Item (RMDQ-24) Total Score
Periodo de tiempo: Baseline, Week 13, Week 54
Roland-Morris questionnaire will be completed by the patient and measures the degree of disability due to back pain. The questionnaire consists of 24 statements and the patient is instructed to put a mark next to each appropriate statement. The number of statements marked will be added up by the clinician and a total score is given. The total score ranges from 0 (no disability) to 24 (severe disability).
Baseline, Week 13, Week 54
Change From Baseline to Week 13 Endpoint in Weekly Mean of 24-hour Average Pain, Night Pain and Worst Pain by 11-Point Likert Scale
Periodo de tiempo: Baseline, Week 13
24-hour average pain severity scores recorded daily on an 11-point Likert scale, an ordinal scale ranging from 0 (no pain) to 10 (worst possible pain). Patients should complete the electronic diary at bedtime. The 11-point Likert scale will also be used for assessment of night pain and worst pain each day, and evaluated as weekly means. Average interference was calculated as the average of non-missing scores of individual interference items.
Baseline, Week 13
Change From Baseline to Week 13 and Week 54 Endpoints in Brief Pain Inventory - Severity (BPI-S) and Interference (BPI-I) Scores
Periodo de tiempo: Baseline, Week 13, Week 54
BPI-S and BPI-I are self-reported scales measuring severity of pain and interference on function. Severity scores: 0 (no pain) to 10 (severe pain) on each question assessing worst pain, least pain, and average pain in past 24 hours, and pain right now. Interference scores: 0 (does not interfere) to 10 (completely interferes) on each question assessing interference of pain in past 24 hours for general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life. Average interference = average of non-missing scores of individual interference items.
Baseline, Week 13, Week 54
Change From Baseline to Week 13 and Week 54 Endpoints in Clinical Global Impression of Severity (CGI-Severity)
Periodo de tiempo: Baseline, Week 13, Week 54
Measures severity of illness at the time of assessment. Scores range from 1 (normal, not at all ill) to 7 (among the most extremely ill patients).
Baseline, Week 13, Week 54
Number of Participants Who Responded to Treatment at Week 13 Endpoint Based on 30% Score Reduction Criteria
Periodo de tiempo: Week 13
Response to treatment was defined as at least a 30% reduction of weekly mean score in in Brief Pain Inventory (BPI) Average Pain severity ratings from baseline to endpoint. The number of participants who met this criteria are presented.
Week 13
Number of Participants Who Responded to Treatment at Week 13 Endpoint Based on 50% Score Reduction Criteria
Periodo de tiempo: Week 13
Response to treatment was defined as at least a 50% reduction of weekly mean score in in Brief Pain Inventory (BPI) Average Pain severity ratings from baseline to endpoint. The number of participants who met this criteria are presented.
Week 13
Change From Baseline to Week 13 and Week 54 Endpoints in Athens Insomnia Scale
Periodo de tiempo: Baseline, Week 13, Week 54
Estimates sleep difficulty. Consists of 8 items rated on a 4-point scale of 0 (no problem at all) to 3 (very serious problem). Total score of the 8-item version ranges from 0-24.
Baseline, Week 13, Week 54
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF-36)
Periodo de tiempo: Baseline, Week 13
The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary [MCS] and physical component summary [PCS]). MCS and PCS scores=0-100 (higher scores indicate better health status). Domain scores: general health=5-25; physical functioning=10-30; role-physical=4-8; role-emotional=3-6; social functioning=2-10; bodily pain=2-11; vitality=4-24; mental health=5-30.
Baseline, Week 13
Change From Baseline to Week 13 Endpoint in EuroQoL Questionnaire - 5 Dimension (EQ-5D)
Periodo de tiempo: Baseline, Week 13
The EuroQoL Questionnaire - 5 Dimension (EQ-5D) is a generic, multidimensional, health-related, quality-of-life instrument. The profile allows patients to rate their health state in 5 health domains: mobility, self-care, usual activities, pain/discomfort, and mood. A single score between 1 and 3 is generated for each domain. For each patient, the outcome rating on the 5 domains will be mapped to a single index through an algorithm. The index ranges between 0 and 1, with the higher score indicating a better health state perceived by the patient. Scores presented used the UK Based Index Score.
Baseline, Week 13
Change From Baseline to Week 13 and Week 54 Endpoints in Work Productivity and Activity Impairment Instrument (WPAI) Scores
Periodo de tiempo: Baseline, Week 13, Week 54

WPAI: self-administered instrument used to measure effect of general health and symptom severity on work productivity and regular activities and yields 4 types of scores: Absenteeism (work time missed); Presenteeism (impairment at work/reduced on-the-job effectiveness); Work Productivity Loss (overall work impairment/absenteeism plus presenteeism); and Activity Impairment. Higher scores are indicative of greater impairment.

  1. Absenteeism=(Q2/(Q2+Q4))*100
  2. Presenteeism=(Q5/10)*100
  3. Work productivity loss=(Q2/(Q2+Q4)+[(1-Q2/(Q2+Q4))x(Q5/10)])*100
  4. Activity Impairment=(Q6/10)*100
Baseline, Week 13, Week 54
Change From Baseline to Week 13 and Week 54 Endpoints in Beck Depression Inventory (BDI-II) Total Scores
Periodo de tiempo: Baseline, Week 13, Week 54
A 21-item, patient-completed questionnaire to assess characteristics of depression. Each of the 21 items corresponding to a symptom of depression is summed to give a single score. There is a four-point scale for each item ranging from 0 to 3. Total score of 0-13 is considered minimal range, 14-19 is mild, 20-28 is moderate, and 29-63 is severe.
Baseline, Week 13, Week 54
Change From Baseline to Week 13 Endpoint in Hospital Anxiety and Depression Scale (HADS) Scores
Periodo de tiempo: Baseline, Week 13
A 14-item questionnaire with 2 subscales: anxiety and depression. Each item is rated on a 4-point scale, giving maximum scores of 21 for anxiety and depression. Scores of 11 or more on either subscale are considered to be a significant 'case' of psychological morbidity, while scores of 8-10 represent 'borderline' and 0-7, 'normal.'
Baseline, Week 13
Laboratory Assessments That Were Statistically Significantly Different Between Treatment Groups in Change From Baseline to Week 13 Endpoint: Bicarbonate
Periodo de tiempo: Baseline, Week 13
Baseline, Week 13
Laboratory Assessments That Were Statistically Significantly Different Between Treatment Groups in Change From Baseline to Week 13 Endpoint: Uric Acid
Periodo de tiempo: Baseline, Week 13
Baseline, Week 13
Change From Baseline to Week 13 and Week 54 Endpoints in Vital Signs: Pulse Rate
Periodo de tiempo: Baseline, Week 13, Week 54
Baseline, Week 13, Week 54
Change From Baseline to Week 13 and Week 54 Endpoints in Vital Signs: Blood Pressure
Periodo de tiempo: Baseline, Week 13, Week 54
Baseline, Week 13, Week 54
Change From Baseline to Week 13 and Week 54 Endpoints in Vital Signs: Weight
Periodo de tiempo: Baseline, Week 13, Week 54
Baseline, Week 13, Week 54

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Serious Adverse Events During the Dose-Blind Extension Phase
Periodo de tiempo: Week 13 though Week 54
Serious adverse events during the extension phase reported based on the original treatment group to which the patient was randomized. Dictionary used was MedDRA 11.0.
Week 13 though Week 54
Treatment-Emergent Adverse Events Occurring in at Least 5 Percent of Patients During the Dose-Blind Extension Phase
Periodo de tiempo: Week 13 through Week 54
Treatment-emergent adverse events during the extension phase reported based on the original treatment group to which the patient was randomized. Dictionary used was MedDRA 11.0.
Week 13 through Week 54

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio

1 de enero de 2007

Finalización primaria (Actual)

1 de diciembre de 2007

Finalización del estudio (Actual)

1 de octubre de 2008

Fechas de registro del estudio

Enviado por primera vez

17 de enero de 2007

Primero enviado que cumplió con los criterios de control de calidad

17 de enero de 2007

Publicado por primera vez (Estimar)

19 de enero de 2007

Actualizaciones de registros de estudio

Última actualización publicada (Estimar)

20 de noviembre de 2009

Última actualización enviada que cumplió con los criterios de control de calidad

18 de noviembre de 2009

Última verificación

1 de noviembre de 2009

Más información

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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