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Chronic Low-back PainPhase 2NCT04874636

Chronic Pain Master Protocol (CPMP): A Study of LY3556050 in Participants With Chronic Low Back Pain

A Phase 2 study testing LY3556050 in people with Chronic Low-back Pain, run by Eli Lilly and Company at 35 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is being done to test the safety and efficacy of the study drug LY3556050 for the treatment of chronic low back pain. 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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Chronic Low-back Pain
What is being tested?
LY3556050
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
153 participants
Where
35 sitesin 2 countries
Study dates
20 May 2021to 9 Feb 2022
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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 value of ≤30 on the pain catastrophizing scale.
  • 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.
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  • 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.
  • Have stable glycemic control as indicated by a glycated hemoglobin (HbA1c) less than or equal to 10 at time of screening.
  • Are men, or women able to abide by reproductive and contraceptive requirements.

Who cannot join

  • Have second or third-degree atrioventricular (AV) heart block or AV dissociation or history of ventricular tachycardia.
  • 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.
  • There is an inability to rule out other causative or confounding sources of pain in the primary condition under study.
  • Have had cancer within 2 years of baseline, except for cutaneous basal cell or squamous cell carcinoma resolved by excision.
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  • Have a substance use disorder as defined by the Diagnostic and Statistical Manual of Mental Disorders (5th edition; DSM-5; American Psychiatric Association).
  • Have congenital QT prolongation or QT interval corrected for heart rate using Fridericia's formula (QTcF) interval measurement >450 milliseconds (msec) for male participants, >470 msec for female participants, or >480 msec for participants with bundle branch block.
  • Have any clinically important abnormality at screening, as determined by investigator, in physical or neurological examination, vital signs, electrocardiogram (ECG), or clinical laboratory test results that could be detrimental to the participant or could compromise the study.
  • 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 osteoporotic compression fracture.
  • Have had a recent major trauma (within 6 months of baseline).
  • Have had surgical intervention for the treatment of low back pain in the past 6 months.
  • Have a history within 2 years prior to screening or current evidence of syncope, presyncope, uncontrolled vertigo, or postural dizziness, judged to be clinically significant by the investigator.
  • Have clinically significant active thyroid disease, including Hashimoto's thyroiditis.
  • Are taking metformin therapy.
  • Are pregnant or breastfeeding.

Trial locations and contacts

35 sites in 2 countries.

35 sites in 2 countries

United States33 sites
  • VIN-Julie Schwartzbard

    Aventura, Florida, 33180

  • Great Lakes Research Group, Inc.

    Bay City, Michigan, 48706

  • Northwest Clinical Research Center

    Bellevue, Washington, 98007

  • Simon Williamson Clinic

    Birmingham, Alabama, 35211

  • Boston Clinical Trials

    Boston, Massachusetts, 02131

  • Synexus- Chandler

    Chandler, Arizona, 85224

  • Synexus Clinical Research

    Chicago, Illinois, 60602

  • Northwestern University

    Chicago, Illinois, 60611

  • Synexus - Cincinnati

    Cincinnati, Ohio, 45236

  • StudyMetrix Research

    City of Saint Peters, Missouri, 63303

  • Clinical Research of South Florida

    Coral Gables, Florida, 33134

  • Cedar Health Research

    Dallas, Texas, 75251

  • META Medical Research Institute

    Dayton, Ohio, 45432

  • Altoona Center For Clinical Research

    Duncansville, Pennsylvania, 16635

  • Synexus Clinical Research - Glendale

    Glendale, Arizona, 85306

  • CMR of Greater New Haven

    Hamden, Connecticut, 06517

  • Irvine Clinical Research Center

    Irvine, California, 92614

  • ActivMed Practices and Research

    Methuen, Massachusetts, 01844

  • Suncoast Research Group

    Miami, Florida, 33135

  • University of Miami Don Suffer Clinical Research Building

    Miami, Florida, 33136

  • New Horizon Research Center

    Miami, Florida, 33165

  • Renstar Medical Research

    Ocala, Florida, 34470

  • Synexus Clinical Research US, Inc - Orlando

    Orlando, Florida, 32806

  • Synexus Clinical Research - St. Petersburg

    Pinellas Park, Florida, 33781

  • Martin E. Hale M.D., P.A.

    Plantation, Florida, 33317

  • Rainier Clinical Research Center

    Renton, Washington, 98057

  • Artemis Institute for Clinical Research

    Riverside, California, 92503

  • Synexus - US

    San Antonio, Texas, 78229

  • Artemis Institute for Clinical Research

    San Diego, California, 92103

  • Alliance for Multispecialty Research - Clinical Research Consortium

    Tempe, Arizona, 85281

  • Synexus Clinical Research US, Inc - Orlando

    The Villages, Florida, 32162

  • MedVadis Research Corporation

    Waltham, Massachusetts, 02451

  • Clinical Research Center of Reading,LLC

    Wyomissing, Pennsylvania, 19610

Other trials in United States

Puerto Rico2 sites
  • Ponce Medical School Foundation Inc.

    Ponce, 00716

  • Latin Clinical Trial Center

    San Juan, 00909

Other trials in Puerto Rico

About this study

Official title: Randomized, Placebo-Controlled, Phase 2 Clinical Trial to Evaluate LY3556050 for the Treatment of Chronic Low Back Pain

This study is being done to test the safety and efficacy of the study drug LY3556050 for the treatment of chronic low back pain. 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.

Being tested
LY3556050, Placebo

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LY3556050Drug

    Administered orally

  • PlaceboDrug

    Administered orally

Study groups in NCT04874636
Study groupRoleWhat they receive
600 Milligram (mg) LY3556050ExperimentalParticipants received 600 mg LY3556050 twice daily (BID) every 12 hours for up to 8 weeks.
Receives: Drug: LY3556050
PlaceboPlacebo comparatorParticipants received placebo BID every 12 hours for up to 8 weeks.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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 percent (%) credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.

    Measured: Baseline, Week 8

Secondary outcomes (7)
  1. 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 participant'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.

    Measured: Baseline, Week 8

  2. 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.

    Measured: Baseline, Week 8

  3. 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.

    Measured: Baseline, Week 8

  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.

    Measured: Baseline, Week 8

  5. 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.

    Measured: Baseline, Week 8

  6. 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, 95% credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.

    Measured: Week 8

  7. 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.

    Measured: Baseline, Week 8

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 May 2021
  2. Study start20 May 2021
  3. Primary completion9 Feb 2022
  4. Study completion9 Feb 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
153 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04874636
Sponsor's protocol ID
17595
Other IDs
H0P-MC-BP03
Status last verified
Oct 2023
First submitted
4 May 2021
Last updated
2 Nov 2023
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: 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.

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing LY3556050 in people with Chronic Low-back Pain, run by Eli Lilly and Company at 35 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 21 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 35 sites in United States, Puerto Rico. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Nov 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline for Average Pain Intensity as Measured by the Numeric Rating Scale (NRS) (time frame: Baseline, Week 8). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Nov 2023.

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