Chronic Pain Master Protocol (CPMP): A Study of LY3526318 in Participants With Chronic Low Back Pain

Randomized Placebo-controlled Phase 2 Clinical Trial to Evaluate LY3526318 for the Treatment of Chronic Low Back Pain

The purpose of this study is to test whether LY3526318 is efficacious and safe in relieving chronic low back pain (CLBP). This trial is part of the chronic pain master protocol H0P-MC-CPMP (NCT05986292) which is a protocol to accelerate the development of new treatments for chronic pain.

Study Overview

• Status: Completed
• Conditions: Chronic Low-back Pain
• Intervention / Treatment: Drug: Placebo; Drug: LY3526318

• Study Type: Interventional
• Enrollment (Actual): 159
• Phase: Phase 2

Contacts and Locations

Study Locations

• Puerto Rico
  • Ponce, Puerto Rico, 00716
    • Ponce Medical School Foundation Inc.
  • San Juan, Puerto Rico, 00909
    • Latin Clinical Trial Center
• United States
  • Arizona
    • Chandler, Arizona, United States, 85224
      • Synexus- Chandler
    • Glendale, Arizona, United States, 85306
      • Synexus Clinical Research - Glendale
    • Tempe, Arizona, United States, 85281
      • Alliance for Multispecialty Research, LLC Tempe
  • California
    • Riverside, California, United States, 92503
      • Artemis Institute for Clinical Research
    • San Diego, California, United States, 92103
      • Artemis Institute for Clinical Research
  • Connecticut
    • Hamden, Connecticut, United States, 06517
      • CMR of Greater New Haven
  • Florida
    • Aventura, Florida, United States, 33180
      • VIN-Julie Schwartzbard
    • Miami, Florida, United States, 33165
      • New Horizon Research Center
    • Miami, Florida, United States, 33135
      • Suncoast Research Group
    • Ocala, Florida, United States, 34470
      • Renstar Medical Research
    • Orlando, Florida, United States, 32806
      • Synexus Clinical Research US, Inc - Orlando
    • Pinellas Park, Florida, United States, 33781
      • Synexus Clinical Research US, Inc.
    • The Villages, Florida, United States, 32162
      • Synexus Clinical Research US, Inc.
  • Idaho
    • Idaho Falls, Idaho, United States, 83404
      • Rocky Mountain Clinical Research
  • Illinois
    • Chicago, Illinois, United States, 60611
      • Northwestern University
    • Chicago, Illinois, United States, 60602
      • Synexus Clinical Research US, Inc.
  • Massachusetts
    • Boston, Massachusetts, United States, 02131
      • Boston Clinical Trials
    • Methuen, Massachusetts, United States, 01844
      • ActivMed Practices and Research
    • Waltham, Massachusetts, United States, 02451
      • MedVadis Research Corporation
  • Michigan
    • Bay City, Michigan, United States, 48706
      • Great Lakes Research Group, Inc.
  • Missouri
    • Saint Peters, Missouri, United States, 63303
      • StudyMetrix Research
    • Springfield, Missouri, United States, 65807
      • Clinvest Research LLC
  • Ohio
    • Cincinnati, Ohio, United States, 45236
      • Synexus - Cincinnati
    • Dayton, Ohio, United States, 45432
      • META Medical Research Institute
  • Pennsylvania
    • Duncansville, Pennsylvania, United States, 16635
      • Altoona Center for Clinical Research
  • Texas
    • Austin, Texas, United States, 78731
      • FutureSearch Trials
    • San Antonio, Texas, United States, 78229
      • Synexus - US
  • Washington
    • Bellevue, Washington, United States, 98007
      • Northwest Clinical Research Center
    • Renton, Washington, United States, 98057
      • Rainier Clinical Research Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Have a visual analog scale (VAS) pain value ≥40 and <95 during screening.
• Have a history of daily pain for at least 12 weeks based on participant report or medical history.
• Have a body mass index <40 kilograms per meter squared (kg/m²) (inclusive).
• Are willing to maintain a consistent regimen of any ongoing nonpharmacologic pain-relieving therapies (for example, physical therapy) and will not start any new nonpharmacologic pain-relieving therapies during study participation.
• Are willing to discontinue all medications taken for chronic pain conditions for the duration of the study.
• Are at 18 years old or older at the time consent is signed.
• Have a history of low back pain for at least 3 months located between the 12th thoracic vertebra and the lower gluteal folds, with or without radiation.
• Have a history of low back pain as classified by the Quebec Task Force Category 1 through 3.
• Are men, or women able to abide by reproductive and contraceptive requirements.

Exclusion Criteria:

• Have had a procedure within the past 6 months intended to produce permanent sensory loss in the target area of interest (for example, ablation techniques).
• Have surgery planned during the study for any reason, related or not to the disease state under evaluation.
• Have, in the judgment of the investigator, an acute, serious, or unstable medical condition or a history or presence of any other medical illness that would preclude study participation.
• Have had cancer within 2 years of baseline, except for cutaneous basal cell or squamous cell carcinoma resolved by excision.
• Have fibromyalgia
• Have a substance use disorder as defined by the Diagnostic and Statistical Manual of Mental Disorders (5th edition; DSM-5; American Psychiatric Association).
• Have a positive human immunodeficiency virus (HIV) test result at screening.
• Are, in the judgment of the investigator, actively suicidal and therefore deemed to be at significant risk for suicide.
• Have an intolerance to acetaminophen or paracetamol or any of its excipients.
• Have a history of alcohol, illicit drug, analgesic or narcotic use disorder within 2 years prior to screening.
• Have used a therapeutic injection (botulinum toxin or corticosteroids) in the 3 months prior to starting the washout period.
• Have history of or current compression fracture.
• Have had a recent major trauma (within 6 months of baseline).
• Have a history of low back pain as classified by the Quebec Task Force categories 4 through 11.
• Are using a spinal cord stimulator or dorsal root ganglion stimulator.
• Are pregnant or breastfeeding.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: Placebo; Participants received placebo orally, once daily, for 8-weeks treatment period.	Drug: Placebo; Administered orally
Experimental: LY3526318; Participants received 250 mg of LY3526318 orally, once daily for the first 4 weeks of treatment period and were switched to placebo once daily for the next 4 weeks of the treatment period.	Drug: LY3526318; Administered orally

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change From Baseline for Average Pain Intensity as Measured by the Numeric Rating Scale (NRS) at Week 4	The NRS was used to describe pain severity. Participants were asked to describe their average pain over the past 24 hours, on a scale of 0 to 10: 0 = no pain, and 10 = pain as bad as you can imagine. Posterior mean change from baseline, 95 percent (%) credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 4

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change From Baseline on the Visual Analog Scale (VAS) for Pain	VAS was a graphic, single-item scale where participants were asked to describe their pain intensity over the past week, on a scale of 0 to 100: 0=no pain, and 100=worst imaginable pain. Participants completed the VAS by placing a line perpendicular to the VAS line at a point that described their pain intensity. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 4
Change From Baseline on the Visual Analog Scale (VAS) for Pain	VAS was a graphic, single-item scale where participants were asked to describe their pain intensity over the past week, on a scale of 0 to 100: 0=no pain, and 100=worst imaginable pain. Participants completed the VAS by placing a line perpendicular to the VAS line at a point that described their pain intensity. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 8
Change From Baseline on the Sleep Scale From the Medical Outcomes Study (MOS Sleep Scale) - Average Hours of Sleep	The MOS Sleep Scale consists of 12 questions addressing the past week. Question 1 asks time to fall asleep and it is reported in 5-point timeframe categories. Question 2 asks average hours of sleep. In the remaining 10 questions participants report how often a sleep symptom or problem was present on a scale ranging from '0=all of the time' to '5=none of the time.' MOS Sleep scale dimension scores range from 0 to 100 with lower score indicating improvement, except for the dimension of sleep adequacy, where higher scores indicate improvement. Here, the average hours of sleep (i.e., Question 2) is reported as the average number of hours slept each night during the past week (range 0 to 24 hours). Higher number of hours slept indicates improvement. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 4
Change From Baseline on the Sleep Scale From the Medical Outcomes Study (MOS Sleep Scale) - Average Hours of Sleep	The MOS Sleep Scale consists of 12 questions addressing the past week. Question 1 asks time to fall asleep and it is reported in 5-point timeframe categories. Question 2 asks average hours of sleep. In the remaining 10 questions participants report how often a sleep symptom or problem was present on a scale ranging from '0=all of the time' to '5=none of the time.' MOS Sleep scale dimension scores range from 0 to 100 with lower score indicating improvement, except for the dimension of sleep adequacy, where higher scores indicate improvement. Here, the average hours of sleep (i.e., Question 2) is reported as the average number of hours slept each night during the past week (range 0 to 24 hours). Higher number of hours slept indicates improvement. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 8
Change From Baseline for Average Pain Intensity as Measured by the Numeric Rating Scale (NRS)	The NRS was used to describe pain severity. Participants were asked to describe their average pain over the past 24 hours, on a scale of 0 to 10: 0 = no pain, and 10 = pain as bad as you can imagine. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 8
Change From Baseline on the Roland Morris Disability Questionnaire (RMDQ)	The RMDQ is a simple, sensitive, and reliable method to measure disability in patients with back pain that consists of 24 statements relating to the person's perceptions of back pain and associated disability based on physical ability/activity, sleep/rest, psychosocial, household management, eating, and pain frequency. Participants are asked if they feel the statement is descriptive of their own circumstance on that day. The total score is obtained by counting the number of ''Yes'' responses, ranging from: 0 = no disability to 24 = maximal disability. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 4
Change From Baseline on the Roland Morris Disability Questionnaire (RMDQ)	The RMDQ is a simple, sensitive, and reliable method to measure disability in patients with back pain that consists of 24 statements relating to the person's perceptions of back pain and associated disability based on physical ability/activity, sleep/rest, psychosocial, household management, eating, and pain frequency. Participants are asked if they feel the statement is descriptive of their own circumstance on that day. The total score is obtained by counting the number of ''Yes'' responses, ranging from: 0 = no disability to 24 = maximal disability. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 8
Change From Baseline for Overall Improvement as Measured by Patient's Global Impression of Change	Patients Global Impression of Change captured the participant's perspective of treatment apart from sub-aspects of the general improvement. This is a numeric scale from 1 to 7 where, 1=very much better, and 7=very much worse. Posterior mean, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 4
Change From Baseline for Overall Improvement as Measured by Patient's Global Impression of Change	Patients Global Impression of Change captured the participant's perspective of treatment apart from sub-aspects of the general improvement. This is a numeric scale from 1 to 7: 1 = very much better, and 7 = very much worse. Posterior mean, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 8
Change From Baseline for Worst Pain Intensity as Measured by NRS	The NRS was used to describe pain severity. Participants were asked to describe their worst pain over the past 24 hours, on a scale of 0 to 10: 0=no pain, and 10=pain as bad as you can imagine. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 4
Change From Baseline for Worst Pain Intensity as Measured by NRS	The NRS was used to describe pain severity. Participants were asked to describe their worst pain over the past 24 hours, on a scale of 0 to 10: 0=no pain, and 10=pain as bad as you can imagine. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 8
Change From Baseline on the EuroQuality of Life Five Dimensions (5D) Five Level (5L) Questionnaire (EQ-5D-5L) Health State Index (United States Algorithm)	The EQ-5D-5L assessed quality of life based on 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The participant was asked to 'check the ONE box that best describes your health TODAY,' choosing from 5 options (no problems, slight problems, moderate problems, severe problems, extreme problems) provided under each dimension. The scores in the 5 dimensions were summarized into a health state index score using the United States algorithm. The health state index value is a single value on a scale from less than 0 to 1 (negative values are valued as worse than dead) with higher scores indicating better health: 0=a health state equivalent to death, and 1=perfect health. Posterior mean change from baseline, 95% credible intervals was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 4
Change From Baseline on the EuroQuality of Life Five Dimensions (5D) Five Level (5L) Questionnaire (EQ-5D-5L) Health State Index (United States Algorithm)	The EQ-5D-5L assessed quality of life based on 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The participant was asked to 'check the ONE box that best describes your health TODAY,' choosing from 5 options (no problems, slight problems, moderate problems, severe problems, extreme problems) provided under each dimension. The scores in the 5 dimensions were summarized into a health state index score using the United States algorithm. The health state index value is a single value on a scale from less than 0 to 1 (negative values are valued as worse than dead) with higher scores indicating better health: 0=a health state equivalent to death, and 1=perfect health. Posterior mean change from baseline, 95% credible intervals was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Baseline, Week 8
Total Amount of Rescue Medication Use as Measured by Average Daily Dosage	Total amount of rescue medication use as measured by average daily dosage. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Week 4
Total Amount of Rescue Medication Use as Measured by Average Daily Dosage	Total amount of rescue medication use as measured by average daily dosage. Posterior mean change from baseline, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.	Week 8

Collaborators and Investigators

• Sponsor: Eli Lilly and Company
• Investigators: Study Director: Call 1-877-CTLILLY (1-877-285-4559) or (1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST), Eli Lilly and Company

Publications and helpful links

Helpful Links

• Chronic Pain Master Protocol (CPMP): A Study of LY3526318 in Participants With Chronic Low Back Pain

Study record dates

Study Major Dates

• Study Start (Actual): October 25, 2021
• Primary Completion (Actual): June 17, 2022
• Study Completion (Actual): June 17, 2022

Study Registration Dates

• First Submitted: October 19, 2021
• First Submitted That Met QC Criteria: October 19, 2021
• First Posted (Actual): October 20, 2021

Study Record Updates

• Last Update Posted (Actual): October 5, 2023
• Last Update Submitted That Met QC Criteria: October 3, 2023
• Last Verified: October 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pain; Neurologic Manifestations; Back Pain; Low Back Pain
• Other Study ID Numbers: 17515; H0P-MC-BP02 (Other Identifier: Eli Lilly and Company)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.
• IPD Sharing Time Frame: Data are available 6 months after the primary publication and approval of the indication studied in the US and European Union (EU), whichever is later. Data will be indefinitely available for requesting.
• IPD Sharing Access Criteria: A research proposal must be approved by an independent review panel and researchers must sign a data sharing agreement.
• IPD Sharing Supporting Information Type: STUDY_PROTOCOL; SAP; CSR

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No