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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT00924664
Other study ID # A4091039
Secondary ID CLBP SAFETY EXTE
Status Terminated
Phase Phase 2
First received
Last updated
Start date August 20, 2009
Est. completion date June 22, 2011

Study information

Verified date March 2021
Source Pfizer
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to investigate the safety and efficacy of tanezumab for chronic low back pain. Patients who were randomized and treated with study medication in a previous chronic low back pain "parent" study will be eligible to enroll in this safety extension study at the Preferred Rollover Time Point visit or at the Early Termination visit of the parent study upon discontinuation due to lack of efficacy.


Description:

This study was terminated on 30 November 2010 following a US FDA clinical hold for tanezumab chronic low back pain clinical studies which halted dosing and enrollment of patients on 19 July 2010 for potential safety issues.


Recruitment information / eligibility

Status Terminated
Enrollment 849
Est. completion date June 22, 2011
Est. primary completion date November 30, 2010
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Written informed consent prior to completing any of the study procedures. - Female patients must meet one of the following criteria: 1) Female patients of non childbearing potential - Must be post menopausal, defined as women who are >=45 years old with amenorrhea for 24 consecutive months (regardless of FSH levels), or women who are amenorrheic for at least 1 year AND have a serum Follicle Stimulating Hormone (FSH) level greater than 30 IU/L at Screening for the parent double blind CLBP study; or Must be surgically sterile, defined as having had a hysterectomy and/or bilateral oophorectomy. 2.) Female patients of child bearing potential: must not be pregnant or lactating, and must be abstinent or use adequate contraception (2 forms of birth control, one of which must be a barrier method), and must have a negative serum pregnancy test at Screening (within 30 days prior to Baseline) and a negative urine pregnancy test at Baseline prior to initial dosing - Male patients must agree that they and their female spouses / partners will use adequate contraception (2 forms of birth control, one of which must be barrier method) or be of non childbearing potential. - Females of child bearing potential and males must be willing to use approved methods of contraception from commencement of screening procedures until 16 weeks after the last dose of IV study medication. - Patient must be able to comply with lifestyle guidelines, scheduled visits, treatment plan, laboratory tests, and other study procedures - Patient has been treated in a parent tanezumab double blind CLBP study - Patient has completed the Preferred Rollover Time Point visit of the double blind CLBP parent study or has been withdrawn for lack of efficacy. At least eight weeks but no more than 12 weeks have elapsed since the last study medication infusion in the parent study. Patients are permitted to enter the extension study up to 12 weeks after their last dose of study medication in their parent study (or 4 weeks after the End of Treatment visit) Exclusion Criteria: - Failed screening in a parent tanezumab double blind CLBP study - Withdrawn from a parent tanezumab double blind CLBP study for an adverse event - Pregnant women, lactating mothers, women suspected of being pregnant, and women who wish to become pregnant during the course of clinical study - Use of any investigational medication within 30 days prior to Baseline (3 months for any investigational biological other than tanezumab) or plans to receive an investigational medication other than the study medication during the course of this study - Patients who exited the parent double blind CLBP study because of lack of compliance, protocol violation (including not meeting entrance criteria), no longer willing to participate (for reasons other than lack of efficacy), or were lost to follow up in the parent double blind study - Patients who were randomized into the parent study in violation of inclusion or exclusion criteria but who were not withdrawn from the parent study; - Any other condition, which in the opinion of the Investigator, would put the patient at increased safety risk or otherwise make the patient unsuitable for this study

Study Design


Related Conditions & MeSH terms


Intervention

Biological:
Tanezumab 20 mg
Tanezumab 20 mg administered IV every 8 weeks for 3 administrations followed by SC administration every 8 weeks for 4 administrations over a period of 64 weeks
Tanezumab 10 mg
Tanezumab 10 mg administered IV every 8 weeks for 3 administrations followed by SC administration every 8 weeks for 4 administrations over a period of 64 weeks

Locations

Country Name City State
United States Albuquerque Clinical Trials, Inc. Albuquerque New Mexico
United States Allegheny Pain Management Altoona Pennsylvania
United States Blair Medical Associates-Radiology Altoona Pennsylvania
United States Pinnacle Research Group Anniston Alabama
United States Pinnacle Research Group, Anniston Medical Clinic Anniston Alabama
United States Pinnacle Research Group, LLC Anniston Alabama
United States Center for Prospective Outcome Studies Atlanta Georgia
United States Southeastern Radiology Associates, LLC Atlanta Georgia
United States FutureSearch Trials of Neurology Austin Texas
United States Office of Peter A. Holt, MD Baltimore Maryland
United States Beaumont Internal Medicine & Geriatric Associates Beaumont Texas
United States DiscoveResearch, Inc. Beaumont Texas
United States Northwest Clinical Research Center Bellevue Washington
United States Comprehensive Clinical Research Berlin New Jersey
United States The Center for Clinical Trials Biloxi Mississippi
United States Simon Williamson Clinic, PC Birmingham Alabama
United States River Birch Research Alliance, LLC Blue Ridge Georgia
United States Selah Medical Center, PA Boise Idaho
United States Alpine Clinical Research Center Boulder Colorado
United States Paramount Clinical Research Bridgeville Pennsylvania
United States DiscoveResearch Incorporated Bryan Texas
United States Providence Clinical Research Burbank California
United States Punzi Medical Center Carrollton Texas
United States Phoenix Diagnostic Imaging Chandler Arizona
United States Radiant Research - Phoenix Southeast Chandler Arizona
United States Charlottesville Medical Research Charlottesville Virginia
United States Southeast Clinical Research Chiefland Florida
United States Southeast Clinical Research, LLC Chiefland Florida
United States Rapid Medical Research, Inc. Cleveland Ohio
United States Clinicos, LLC Colorado Springs Colorado
United States Columbia Arthritis Center, P.A. Columbia South Carolina
United States Southern Orthopaedic Sports Medicine Columbia South Carolina
United States New England Center for Clinical Research Cranston Rhode Island
United States KRK Medical Research Dallas Texas
United States Doctors Medical Center DeFuniak Springs Florida
United States Avail Clinical Research, LLC DeLand Florida
United States SJS Clinical Research, Inc. Destin Florida
United States Altoona Center for Clinical Research Duncansville Pennsylvania
United States Advanced Diagnostic Imaging (ADI) Evansville Indiana
United States MediSphere Medical Research Center, LLC Evansville Indiana
United States Valley Research Fresno California
United States Collaborative Neuroscience Network, Inc. Garden Grove California
United States SCRI Research Center, LLC Germantown Tennessee
United States Wolf River Medical Group, LLC Germantown Tennessee
United States Greensboro Imaging Greensboro North Carolina
United States Pharmquest Greensboro North Carolina
United States Radiant Research Greer South Carolina
United States Advances In Health, Inc. Houston Texas
United States Centex Research Houston Texas
United States Centex Research Inc. Houston Texas
United States St. Luke's Diagnostic & Treatment Center Kirby Glen Houston Texas
United States Simon-Williamson Clinic, PC Hueytown Alabama
United States Saadat Ansari, MD Huntsville Alabama
United States Clinical Research Center of Jackson Jackson Mississippi
United States Physician's Surgery Center Jackson Mississippi
United States Jacksonville Center for Clinical Research Jacksonville Florida
United States Southeast Clinical Research, LLC Jacksonville Florida
United States Advanced Therapeutics, Inc. Johnson City Tennessee
United States University of California San Diego La Jolla California
United States Advanced Biomedical Research of America Las Vegas Nevada
United States Clinical Research Consortium Las Vegas Nevada
United States Mirkil Medical Las Vegas Nevada
United States Caldwell Memorial Hospital Lenoir North Carolina
United States Northstate Clinical Research, PLLC Lenoir North Carolina
United States Central Kentucky Research Associates, Inc. Lexington Kentucky
United States Little Rock Family Practice Clinic Little Rock Arkansas
United States Samaritan Center for Medical Research Medical Group Los Gatos California
United States Commonwealth Biomedical Research Madisonville Kentucky
United States Central New York Clinical Research Manlius New York
United States CT: Marietta Imaging Center LLC Marietta Georgia
United States Drug Studies America Marietta Georgia
United States Medford Medical Clinic, LLP Medford Oregon
United States Rogue Valley Medical Center Medford Oregon
United States Sunstone Research Medford Oregon
United States Simon Med Mesa Arizona
United States Alabama Orthopaedic Clinic Mobile Alabama
United States Horizon Research Group Mobile Alabama
United States Arthritis and Diabetes Clinic Monroe Louisiana
United States Collier Neurologic Specialists Naples Florida
United States Centex Research Nassau Bay Texas
United States Medex Healthcare Research New York New York
United States The Medical Research Network, LLC New York New York
United States Newport Diagnostic Center Newport Beach California
United States Chesapeake Regional Imaging Center-Kempsville Norfolk Virginia
United States Hampton Road Center for Clinical Research Norfolk Virginia
United States North County Clinical Research (NCCR) Oceanside California
United States Christine Codding, MD Oklahoma City Oklahoma
United States Health Research of Oklahoma Oklahoma City Oklahoma
United States Lynn Health Science Institute Oklahoma City Oklahoma
United States McBride Clinic, Inc Oklahoma City Oklahoma
United States Meridian Clinical Research, LLC Omaha Nebraska
United States Quality Clinical Research, Inc. Omaha Nebraska
United States Compass Research, LLC Orlando Florida
United States Diagnostic Imaging Centers Overland Park Kansas
United States Palm Beach Gardens Open Imaging Center Palm Beach Gardens Florida
United States University Clinical Research Pembroke Pines Florida
United States Pivotal Research Centers Peoria Arizona
United States Sun Radiology Peoria Arizona
United States CRI Worldwide LLC Philadelphia Pennsylvania
United States Arizona Research Center, LLC Phoenix Arizona
United States Advent Clinical Research Center Pinellas Park Florida
United States Summit Research Network (Oregon), Inc. Portland Oregon
United States Clinical Trials Technology, Inc. Prairie Village Kansas
United States Wake Internal Medicine Consultants, Inc. Raleigh North Carolina
United States Wake Research Associates, LLC Raleigh North Carolina
United States Advances in Medicine Rancho Mirage California
United States Health Concepts Rapid City South Dakota
United States National Clinical Research - Richmond Richmond Virginia
United States B & I Imaging Rochester New York
United States Finger Lakes Clinical Research Rochester New York
United States Rochester Clinical Research, Inc. Rochester New York
United States Trinity Medical Research Roseville California
United States Center for Clinical Trials of Sacramento, Inc. Sacramento California
United States Medex Healthcare Research, Inc. Saint Louis Missouri
United States Mercy Health Research Saint Louis Missouri
United States Dale G. Bramlet, MD., P.L. Saint Petersburg Florida
United States Meridien Research Saint Petersburg Florida
United States St Petersburg General Hospital - X-Rays only Saint Petersburg Florida
United States J. Lewis Research, Inc. Salt Lake City Utah
United States J. Lewis Research, Incorporated/Foothill Family Clinic South Salt Lake City Utah
United States Office of Theresia Lee, MD San Antonio Texas
United States Paragon Research Center San Antonio Texas
United States Progressive Clinical Research San Antonio Texas
United States Sendero Imaging and Treatment Center San Antonio Texas
United States Wetlin Research Associates, Inc San Diego California
United States Radiant Research Scottsdale Arizona
United States Scottsdale Medical Imaging Scottsdale Arizona
United States Miami Research Associates South Miami Florida
United States Clinvest, A Division of Banyan Group, Inc Springfield Missouri
United States Advanced Radiology Stamford Connecticut
United States Stamford Therapeutics Consortium Stamford Connecticut
United States Booth Radiology Stratford New Jersey
United States Clinical Research Advantage, Inc./Fiel Family and Sports Medicine, PC Tempe Arizona
United States Premiere Phamaceutical Research, LLC Tempe Arizona
United States Cotton-O'Neil Clinic Topeka Kansas
United States Cotton-O'Neil Clinical Research Center Topeka Kansas
United States New England Research Associates, LLC Trumbull Connecticut
United States Inland Rheumatology & Osteoporosis Medical Group, Inc. Upland California
United States Advanced Pain Management Virginia Beach Virginia
United States Virginia Beach Radiology Virginia Beach Virginia
United States Omega Medical Research Warwick Rhode Island
United States MD Now Urgent Care West Palm Beach Florida
United States Midtown Imaging West Palm Beach Florida
United States Palm Beach Research Center West Palm Beach Florida
United States Elite Clinical Trials, Inc. Wildomar California
United States Upstate Clinical Research Associates Williamsville New York
United States CRI Worldwide, LLC Willingboro New Jersey
United States The Center for Clinical Research Winston-Salem North Carolina
United States Clinical Pharmacology Study Group Worcester Massachusetts

Sponsors (1)

Lead Sponsor Collaborator
Pfizer

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Other Number of Participants Using Concomitant Medication for Chronic Low Back Pain (CLBP) Food and Drug Administration (FDA) approved analgesics and muscle relaxants were permitted as concomitant medications for CLBP and were prescribed as per investigator's discretion. These medications included opioids, topical analgesics, non-steroidal anti-inflammatory drug (NSAIDs), capsaicin products, oral/injectable corticosteroids, and viscosupplementation (eg, hyaluronan). Baseline up to Week 56
Other Change From A4091012 (NCT00876187) Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) at Week 24 and 56 WPAI:SHP: 6-item, binary question on current employment, 3 questions on hours of work and work-loss, 2 questions based on 0-10 point scale to judge how CLBP affects ability to work, perform regular activities(0=no effect on work/activity, 10=completely prevented from working/activity). Four scores derived as percent: activity impairment, impairment while working, overall work impairment, work time missed. Total possible score: 0-100 (0=no impairment/high productivity, 100=completely impaired/low activity). Each of 4 scores expressed as impairment percentages, high percentage=more impairment, less productivity. A4091012: Baseline, A4091039: Week 24, 56
Other Number of Participants Who Developed Anti-Tanezumab Antibodies Human serum anti-drug antibody (ADA) samples were analyzed for the presence or absence of anti-tanezumab antibodies by using the semi-quantitative enzyme-linked immunosorbent assay (ELISA). Same participant may have positive ADA result at more than 1 time point. Baseline (Day 1), Week 8, 24, 40, 56, 64
Other Number of Participants With Injection and Infusion Site Reactions The injection and infusion site reactions were assessed based on presence of erythema (redness), induration (swelling), ecchymosis (bruising), pruritus (itching) and pain that occurred after administration (not related to needle insertion pain) of subcutaneous injection or intravenous infusion. Baseline (Day 1), Week 4, 8, 16, 24, 32 for intravenous infusion; Week 24, 32, 40, 56, 64 for subcutaneous injection
Other Number of Participants With Intravenous and Subcutaneous Doses of Study Medication Number of participants are reported based on the maximum number of intravenous (IV) and subcutaneous (SC) doses of tanezumab received. Day 1 up to Week 56
Primary Number of Participants With Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs) AE: any untoward medical occurrence in participant who received study medication without regard to possibility of causal relationship. SAE: AE resulting in any of following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study medication and up to 112 days after last dose that were absent before treatment in this study or that worsened relative to pretreatment state. Baseline up to 112 days after last dose of study treatment (up to 448 days)
Primary Change From A4091012 (NCT00876187) Baseline in Neuropathy Impairment Score (NIS) at Week 4 NIS: 74 items, assess muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment. A4091012: Baseline, A4091039: Week 4
Primary Change From A4091012 (NCT00876187) Baseline in Neuropathy Impairment Score (NIS) at Week 8 NIS: 74 items, assess muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment. A4091012: Baseline, A4091039: Week 8
Primary Change From A4091012 (NCT00876187) Baseline in Neuropathy Impairment Score (NIS) at Week 16 NIS: 74 items, assess muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment. A4091012: Baseline, A4091039: Week 16
Primary Change From A4091012 (NCT00876187) Baseline in Neuropathy Impairment Score (NIS) at Week 24 NIS: 74 items, assess muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment. A4091012: Baseline, A4091039: Week 24
Primary Change From A4091012 (NCT00876187) Baseline in Neuropathy Impairment Score (NIS) at Week 32 NIS: 74 items, assess muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment. A4091012: Baseline, A4091039: Week 32
Primary Change From A4091012 (NCT00876187) Baseline in Neuropathy Impairment Score (NIS) at Week 40 NIS: 74 items, assess muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment. A4091012: Baseline, A4091039: Week 40
Primary Change From A4091012 (NCT00876187) Baseline in Neuropathy Impairment Score (NIS) at Week 48 NIS: 74 items, assess muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment. A4091012: Baseline, A4091039: Week 48
Primary Change From A4091012 (NCT00876187) Baseline in Neuropathy Impairment Score (NIS) at Week 56 NIS: 74 items, assess muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment. A4091012: Baseline, A4091039: Week 56
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Scores (Worst, Least, Average, Right Now) at Week 4 BPI-sf: 11-item self-report questionnaire consists of 5 questions, to assess severity and impact of pain on daily functions. Question/item 1-4 (Q1-Q4) measure impact of pain (worst, least, average, right now). Question 5 (Q5) consists of 7 items which measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). A4091012: Baseline, A4091039: Week 4
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Scores (Worst, Least, Average, Right Now) at Week 8 BPI-sf: 11-item self-report questionnaire consists of 5 questions, to assess severity and impact of pain on daily functions. Question/item 1-4 (Q1-Q4) measure impact of pain (worst, least, average, right now). Question 5 (Q5) consists of 7 items which measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). A4091012: Baseline, A4091039: Week 8
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Scores (Worst, Least, Average, Right Now) at Week 16 BPI-sf: 11-item self-report questionnaire consists of 5 questions, to assess severity and impact of pain on daily functions. Question/item 1-4 (Q1-Q4) measure impact of pain (worst, least, average, right now). Question 5 (Q5) consists of 7 items which measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). A4091012: Baseline, A4091039: Week 16
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Scores (Worst, Least, Average, Right Now) at Week 24 BPI-sf: 11-item self-report questionnaire consists of 5 questions, to assess severity and impact of pain on daily functions. Question/item 1-4 (Q1-Q4) measure impact of pain (worst, least, average, right now). Question 5 (Q5) consists of 7 items which measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). A4091012: Baseline, A4091039: Week 24
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Scores (Worst, Least, Average, Right Now) at Week 32 BPI-sf: 11-item self-report questionnaire consists of 5 questions, to assess severity and impact of pain on daily functions. Question/item 1-4 (Q1-Q4) measure impact of pain (worst, least, average, right now). Question 5 (Q5) consists of 7 items which measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). A4091012: Baseline, A4091039: Week 32
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Scores (Worst, Least, Average, Right Now) at Week 40 BPI-sf: 11-item self-report questionnaire consists of 5 questions, to assess severity and impact of pain on daily functions. Question/item 1-4 (Q1-Q4) measure impact of pain (worst, least, average, right now). Question 5 (Q5) consists of 7 items which measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). A4091012: Baseline, A4091039: Week 40
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Scores (Worst, Least, Average, Right Now) at Week 48 BPI-sf: 11-item self-report questionnaire consists of 5 questions, to assess severity and impact of pain on daily functions. Question/item 1-4 (Q1-Q4) measure impact of pain (worst, least, average, right now). Question 5 (Q5) consists of 7 items which measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). A4091012: Baseline, A4091039: Week 48
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Scores (Worst, Least, Average, Right Now) at Week 56 BPI-sf: 11-item self-report questionnaire consists of 5 questions, to assess severity and impact of pain on daily functions. Question/item 1-4 (Q1-Q4) measure impact of pain (worst, least, average, right now). Question 5 (Q5) consists of 7 items which measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). A4091012: Baseline, A4091039: Week 56
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Interference Scores (General Activity, Walking Ability, Normal Work, Sleep, Function Composite) at Week 4 BPI-sf: 11-item self-report questionnaire consists of 5 questions, assess severity and impact of pain on daily functions. Q1-Q4 measure impact of pain (worst, least, average, right now). Q5 (7 items) measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). 7 items in Q5 averaged to obtain function composite score, range: 0 to 10; higher score=greater impairment. A4091012: Baseline, A4091039: Week 4
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Interference Scores (General Activity, Walking Ability, Normal Work, Sleep, Function Composite) at Week 8 BPI-sf: 11-item self-report questionnaire consists of 5 questions, assess severity and impact of pain on daily functions. Q1-Q4 measure impact of pain (worst, least, average, right now). Q5 (7 items) measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). 7 items in Q5 averaged to obtain function composite score, range: 0 to 10; higher score=greater impairment. A4091012: Baseline, A4091039: Week 8
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Interference Scores (General Activity, Walking Ability, Normal Work, Sleep, Function Composite) at Week 16 BPI-sf: 11-item self-report questionnaire consists of 5 questions, assess severity and impact of pain on daily functions. Q1-Q4 measure impact of pain (worst, least, average, right now). Q5 (7 items) measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). 7 items in Q5 averaged to obtain function composite score, range: 0 to 10; higher score=greater impairment. A4091012: Baseline, A4091039: Week 16
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Interference Scores (General Activity, Walking Ability, Normal Work, Sleep, Function Composite) at Week 24 BPI-sf: 11-item self-report questionnaire consists of 5 questions, assess severity and impact of pain on daily functions. Q1-Q4 measure impact of pain (worst, least, average, right now). Q5 (7 items) measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). 7 items in Q5 averaged to obtain function composite score, range: 0 to 10; higher score=greater impairment. A4091012: Baseline, A4091039: Week 24
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Interference Scores (General Activity, Walking Ability, Normal Work, Sleep, Function Composite) at Week 32 BPI-sf: 11-item self-report questionnaire consists of 5 questions, assess severity and impact of pain on daily functions. Q1-Q4 measure impact of pain (worst, least, average, right now). Q5 (7 items) measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). 7 items in Q5 averaged to obtain function composite score, range: 0 to 10; higher score=greater impairment. A4091012: Baseline, A4091039: Week 32
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Interference Scores (General Activity, Walking Ability, Normal Work, Sleep, Function Composite) at Week 40 BPI-sf: 11-item self-report questionnaire consists of 5 questions, assess severity and impact of pain on daily functions. Q1-Q4 measure impact of pain (worst, least, average, right now). Q5 (7 items) measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). 7 items in Q5 averaged to obtain function composite score, range: 0 to 10; higher score=greater impairment. A4091012: Baseline, A4091039: Week 40
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Interference Scores (General Activity, Walking Ability, Normal Work, Sleep, Function Composite) at Week 48 BPI-sf: 11-item self-report questionnaire consists of 5 questions, assess severity and impact of pain on daily functions. Q1-Q4 measure impact of pain (worst, least, average, right now). Q5 (7 items) measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). 7 items in Q5 averaged to obtain function composite score, range: 0 to 10; higher score=greater impairment. A4091012: Baseline, A4091039: Week 48
Primary Change From A4091012 (NCT00876187) Baseline in Brief Pain Inventory-Short Form (BPI-sf) Pain Interference Scores (General Activity, Walking Ability, Normal Work, Sleep, Function Composite) at Week 56 BPI-sf: 11-item self-report questionnaire consists of 5 questions, assess severity and impact of pain on daily functions. Q1-Q4 measure impact of pain (worst, least, average, right now). Q5 (7 items) measure level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item answered on 11-point scale ranging from 0 (no pain/interference) to 10 (pain as bad as you can imagine/completely interferes). 7 items in Q5 averaged to obtain function composite score, range: 0 to 10; higher score=greater impairment. A4091012: Baseline, A4091039: Week 56
Primary Change From A4091012 (NCT00876187) Baseline in Roland-Morris Disability Questionnaire (RMDQ) Total Score at Week 4 RMDQ: back-specific, participant administered questionnaire that assess how well participants with low back pain were able to function with regard to daily activities. The questionnaire consists of 24 statements and the participant is instructed to put a mark next to each appropriate statement. The number of statements marked are added up by the clinician. Total RMDQ score was calculated as the sum of number of statements checked. Total possible RMDQ score: 0 to 24, with higher scores indicated greater disability. A4091012: Baseline, A4091039: Week 4
Primary Change From A4091012 (NCT00876187) Baseline in Roland-Morris Disability Questionnaire (RMDQ) Total Score at Week 8 RMDQ: back-specific, participant administered questionnaire that assess how well participants with low back pain were able to function with regard to daily activities. The questionnaire consists of 24 statements and the participant is instructed to put a mark next to each appropriate statement. The number of statements marked are added up by the clinician. Total RMDQ score is calculated as the sum of number of statements checked. Total possible RMDQ score: 0 to 24, with higher scores indicated greater disability. A4091012: Baseline, A4091039: Week 8
Primary Change From A4091012 (NCT00876187) Baseline in Roland-Morris Disability Questionnaire (RMDQ) Total Score at Week 16 RMDQ: back-specific, participant administered questionnaire that assess how well participants with low back pain were able to function with regard to daily activities. The questionnaire consists of 24 statements and the participant is instructed to put a mark next to each appropriate statement. The number of statements marked are added up by the clinician. Total RMDQ score is calculated as the sum of number of statements checked. Total possible RMDQ score: 0 to 24, with higher scores indicated greater disability. A4091012: Baseline, A4091039: Week 16
Primary Change From A4091012 (NCT00876187) Baseline in Roland-Morris Disability Questionnaire (RMDQ) Total Score at Week 24 RMDQ: back-specific, participant administered questionnaire that assess how well participants with low back pain were able to function with regard to daily activities. The questionnaire consists of 24 statements and the participant is instructed to put a mark next to each appropriate statement. The number of statements marked are added up by the clinician. Total RMDQ score is calculated as the sum of number of statements checked. Total possible RMDQ score: 0 to 24, with higher scores indicated greater disability. A4091012: Baseline, A4091039: Week 24
Primary Change From A4091012 (NCT00876187) Baseline in Roland-Morris Disability Questionnaire (RMDQ) Total Score at Week 32 RMDQ: back-specific, participant administered questionnaire that assess how well participants with low back pain were able to function with regard to daily activities. The questionnaire consists of 24 statements and the participant is instructed to put a mark next to each appropriate statement. The number of statements marked are added up by the clinician. Total RMDQ score is calculated as the sum of number of statements checked. Total possible RMDQ score: 0 to 24, with higher scores indicated greater disability. A4091012: Baseline, A4091039: Week 32
Primary Change From A4091012 (NCT00876187) Baseline in Roland-Morris Disability Questionnaire (RMDQ) Total Score at Week 40 RMDQ: back-specific, participant administered questionnaire that assess how well participants with low back pain were able to function with regard to daily activities. The questionnaire consists of 24 statements and the participant is instructed to put a mark next to each appropriate statement. The number of statements marked are added up by the clinician. Total RMDQ score is calculated as the sum of number of statements checked. Total possible RMDQ score: 0 to 24, with higher scores indicated greater disability. A4091012: Baseline, A4091039: Week 40
Primary Change From A4091012 (NCT00876187) Baseline in Roland-Morris Disability Questionnaire (RMDQ) Total Score at Week 48 RMDQ: back-specific, participant administered questionnaire that assess how well participants with low back pain were able to function with regard to daily activities. The questionnaire consists of 24 statements and the participant is instructed to put a mark next to each appropriate statement. The number of statements marked are added up by the clinician. Total RMDQ score is calculated as the sum of number of statements checked. Total possible RMDQ score: 0 to 24, with higher scores indicated greater disability. A4091012: Baseline, A4091039: Week 48
Primary Change From A4091012 (NCT00876187) Baseline in Roland-Morris Disability Questionnaire (RMDQ) Total Score at Week 56 RMDQ: back-specific, participant administered questionnaire that assess how well participants with low back pain were able to function with regard to daily activities. The questionnaire consists of 24 statements and the participant is instructed to put a mark next to each appropriate statement. The number of statements marked are added up by the clinician. Total RMDQ score is calculated as the sum of number of statements checked. Total possible RMDQ score: 0 to 24, with higher scores indicated greater disability. A4091012: Baseline, A4091039: Week 56
Primary Change From A4091012 (NCT00876187) Baseline in Patient Global Assessment of Low Back Pain at Week 4 Participants answered: "Considering all ways your low back pain affects you, how are you doing today?" Participants rated their condition using scale assessing symptoms and limitations to carry out normal daily activities. Score range: 1-5. 1: Very Good (No symptoms and limitations); 2: Good (Mild symptoms and no limitations); 3: Fair (Moderate symptoms and some limitations); 4: Poor (Severe symptoms and inability to carry out most activities); 5: Very Poor (Very severe, intolerable symptoms and inability to carry all activities). A4091012: Baseline, A4091039: Week 4
Primary Change From A4091012 (NCT00876187) Baseline in Patient Global Assessment of Low Back Pain at Week 8 Participants answered: "Considering all ways your low back pain affects you, how are you doing today?" Participants rated their condition using scale assessing symptoms and limitations to carry out normal daily activities. Score range: 1-5. 1: Very Good (No symptoms and limitations); 2: Good (Mild symptoms and no limitations); 3: Fair (Moderate symptoms and some limitations); 4: Poor (Severe symptoms and inability to carry out most activities); 5: Very Poor (Very severe, intolerable symptoms and inability to carry all activities). A4091012: Baseline, A4091039: Week 8
Primary Change From A4091012 (NCT00876187) Baseline in Patient Global Assessment of Low Back Pain at Week 16 Participants answered: "Considering all ways your low back pain affects you, how are you doing today?" Participants rated their condition using scale assessing symptoms and limitations to carry out normal daily activities. Score range: 1-5. 1: Very Good (No symptoms and limitations); 2: Good (Mild symptoms and no limitations); 3: Fair (Moderate symptoms and some limitations); 4: Poor (Severe symptoms and inability to carry out most activities); 5: Very Poor (Very severe, intolerable symptoms and inability to carry all activities). A4091012: Baseline, A4091039: Week 16
Primary Change From A4091012 (NCT00876187) Baseline in Patient Global Assessment of Low Back Pain at Week 24 Participants answered: "Considering all ways your low back pain affects you, how are you doing today?" Participants rated their condition using scale assessing symptoms and limitations to carry out normal daily activities. Score range: 1-5. 1: Very Good (No symptoms and limitations); 2: Good (Mild symptoms and no limitations); 3: Fair (Moderate symptoms and some limitations); 4: Poor (Severe symptoms and inability to carry out most activities); 5: Very Poor (Very severe, intolerable symptoms and inability to carry all activities). A4091012: Baseline, A4091039: Week 24
Primary Change From A4091012 (NCT00876187) Baseline in Patient Global Assessment of Low Back Pain at Week 32 Participants answered: "Considering all ways your low back pain affects you, how are you doing today?" Participants rated their condition using scale assessing symptoms and limitations to carry out normal daily activities. Score range: 1-5. 1: Very Good (No symptoms and limitations); 2: Good (Mild symptoms and no limitations); 3: Fair (Moderate symptoms and some limitations); 4: Poor (Severe symptoms and inability to carry out most activities); 5: Very Poor (Very severe, intolerable symptoms and inability to carry all activities). A4091012: Baseline, A4091039: Week 32
Primary Change From A4091012 (NCT00876187) Baseline in Patient Global Assessment of Low Back Pain at Week 40 Participants answered: "Considering all ways your low back pain affects you, how are you doing today?" Participants rated their condition using scale assessing symptoms and limitations to carry out normal daily activities. Score range: 1-5. 1: Very Good (No symptoms and limitations); 2: Good (Mild symptoms and no limitations); 3: Fair (Moderate symptoms and some limitations); 4: Poor (Severe symptoms and inability to carry out most activities); 5: Very Poor (Very severe, intolerable symptoms and inability to carry all activities). A4091012: Baseline, A4091039: Week 40
Primary Change From A4091012 (NCT00876187) Baseline in Patient Global Assessment of Low Back Pain at Week 48 Participants answered: "Considering all ways your low back pain affects you, how are you doing today?" Participants rated their condition using scale assessing symptoms and limitations to carry out normal daily activities. Score range: 1-5. 1: Very Good (No symptoms and limitations); 2: Good (Mild symptoms and no limitations); 3: Fair (Moderate symptoms and some limitations); 4: Poor (Severe symptoms and inability to carry out most activities); 5: Very Poor (Very severe, intolerable symptoms and inability to carry all activities). A4091012: Baseline, A4091039: Week 48
Primary Change From A4091012 (NCT00876187) Baseline in Patient Global Assessment of Low Back Pain at Week 56 Participants answered: "Considering all ways your low back pain affects you, how are you doing today?" Participants rated their condition using scale assessing symptoms and limitations to carry out normal daily activities. Score range: 1-5. 1: Very Good (No symptoms and limitations); 2: Good (Mild symptoms and no limitations); 3: Fair (Moderate symptoms and some limitations); 4: Poor (Severe symptoms and inability to carry out most activities); 5: Very Poor (Very severe, intolerable symptoms and inability to carry all activities). A4091012: Baseline, A4091039: Week 56
Secondary Time to Discontinuation Due to Lack of Efficacy Median time to discontinuation due to lack of efficacy was estimated using Kaplan-Meier method. Baseline up to Week 56
Secondary Plasma Concentration of Tanezumab Analysis was done by setting concentration values below the lower limit of quantification (LLOQ) to zero. Baseline (Day 1), Week 8, 24, 40, 56, 64
Secondary Total Nerve Growth Factor (NGF) Concentration Baseline (Day 1), Week 8, 24, 40, 56, 64
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