Study Stopped
The trial was slow to enroll, and the sponsor made a business decision to terminate the trial earlier than planned.
Chronic Pain Master Protocol (CPMP): A Study of LY3556050 in Participants With Diabetic Peripheral Neuropathic Pain
Randomized, Placebo-Controlled, Phase 2 Clinical Trial to Evaluate LY3556050 for the Treatment of Diabetic Peripheral Neuropathic Pain
2 other identifiers
interventional
68
2 countries
37
Brief Summary
This study is being done to test the safety and efficacy of the study drug LY3556050 for the treatment of diabetic peripheral neuropathic pain. This trial is part of the chronic pain master protocol (H0P-MC-CPMP) which is a protocol to accelerate the development of new treatments for chronic pain.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started May 2021
Shorter than P25 for phase_2
37 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 12, 2021
CompletedFirst Posted
Study publicly available on registry
January 13, 2021
CompletedStudy Start
First participant enrolled
May 6, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 13, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
June 13, 2022
CompletedResults Posted
Study results publicly available
November 2, 2023
CompletedNovember 2, 2023
October 1, 2023
1.1 years
January 12, 2021
October 9, 2023
October 9, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Change From Baseline in 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.
Baseline, Week 8
Secondary Outcomes (7)
Change From Baseline in the Brief Pain Inventory-Short Form Modified (BPI-SFM) Total Pain Interference Score
Baseline, Week 8
Change From Baseline for Overall Improvement as Measured by Patient's Global Impression of Change
Baseline, Week 8
Change From Baseline for Worst Pain Intensity as Measured by NRS
Baseline, Week 8
Change From Baseline on the Visual Analog Scale (VAS) for Pain
Baseline, Week 8
Change From Baseline on the Sleep Scale From the Medical Outcomes Study (MOS Sleep Scale) - Average Hours of Sleep
Baseline, Week 8
- +2 more secondary outcomes
Study Arms (2)
600 Milligram (mg) LY3556050
EXPERIMENTALParticipants received 600 mg LY3556050 twice daily (BID) every 12 hours for up to 8 weeks.
Placebo
PLACEBO COMPARATORParticipants received placebo BID every 12 hours for up to 8 weeks.
Interventions
Eligibility Criteria
You may qualify if:
- 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 pain medications taken for chronic pain conditions for the duration of the study.
- Have daily symmetrical foot pain secondary to peripheral neuropathy present for at least 6 months and as diagnosed through use of the Michigan Neuropathy Screening Instrument Part B ≥3 (©University of Michigan).
- Have a history and current diagnosis of type 1 or type 2 diabetes mellitus.
- Have stable glycemic control as indicated by a glycated hemoglobin ≤11 at time of screening.
- Are men, or women able to abide by reproductive and contraceptive requirements.
You may not qualify if:
- 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 a substance use disorder as defined by the Diagnostic and Statistical Manual of Mental Disorders (5th edition; DSM-5; American Psychiatric Association).
- Have had cancer within 2 years of baseline, except for cutaneous basal cell or squamous cell carcinoma resolved by excision.
- Are, in the judgment of the investigator, actively suicidal and therefore deemed to be at significant risk for suicide.
- Have a positive human immunodeficiency virus (HIV) test result at screening.
- 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 a current drug-induced neuropathy, for example, due to some types of chemotherapy, or other types of peripheral neuropathy.
- Have known hereditary motor, sensory or autonomic neuropathies.
- 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.
- Have a history or presence of lactic acidosis.
- Have a history or presence of severe hepatic disease including cirrhosis.
- +6 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (37)
Synexus- Chandler
Chandler, Arizona, 85224, United States
Synexus Clinical Research - Glendale
Glendale, Arizona, 85306, United States
Alliance for Multispecialty Research - Clinical Research Consortium
Tempe, Arizona, 85281, United States
Artemis Institute for Clinical Research
Riverside, California, 92503, United States
Artemis Institute for Clinical Research
San Diego, California, 92103, United States
CMR of Greater New Haven
Hamden, Connecticut, 06517, United States
VIN-Julie Schwartzbard
Aventura, Florida, 33180, United States
Clinical Research of South Florida
Coral Gables, Florida, 33134, United States
Suncoast Research Group
Miami, Florida, 33135, United States
University of Miami Don Suffer Clinical Research Building
Miami, Florida, 33136, United States
New Horizon Research Center
Miami, Florida, 33165, United States
Renstar Medical Research
Ocala, Florida, 34470, United States
Synexus Clinical Research US, Inc - Orlando
Orlando, Florida, 32806, United States
Synexus Clinical Research US, Inc.
Pinellas Park, Florida, 33781, United States
Gold Coast Research
Plantation, Florida, 33317, United States
Synexus Clinical Research US, Inc - Orlando
The Villages, Florida, 32162, United States
Rocky Mountain Clinical Research
Idaho Falls, Idaho, 83404, United States
Synexus Clinical Research US, Inc.
Chicago, Illinois, 60602, United States
Northwestern University
Chicago, Illinois, 60611, United States
NorthShore University HealthSystem
Skokie, Illinois, 60077, United States
Boston Clinical Trials
Boston, Massachusetts, 02131, United States
Joslin Diabetes Center
Boston, Massachusetts, 02215, United States
ActivMed Practices and Research
Methuen, Massachusetts, 01844, United States
MedVadis Research Corporation
Waltham, Massachusetts, 02451, United States
Great Lakes Research Group, Inc.
Bay City, Michigan, 48706, United States
StudyMetrix Research
City of Saint Peters, Missouri, 63303, United States
Clinvest Research LLC
Springfield, Missouri, 65807, United States
Synexus - Cincinnati
Cincinnati, Ohio, 45236, United States
META Medical Research Institute
Dayton, Ohio, 45432, United States
Altoona Center For Clinical Research
Duncansville, Pennsylvania, 16635, United States
FutureSearch Trials
Austin, Texas, 78731, United States
Cedar Health Research
Dallas, Texas, 75251, United States
Synexus - US
San Antonio, Texas, 78229, United States
Northwest Clinical Research Center
Bellevue, Washington, 98007, United States
Rainier Clinical Research Center
Renton, Washington, 98057, United States
Ponce Medical School Foundation Inc.
Ponce, 00716, Puerto Rico
Latin Clinical Trial Center
San Juan, 00909, Puerto Rico
Related Links
Results Point of Contact
- Title
- Chief Medical Officer
- Organization
- Eli Lilly and Company
Study Officials
- 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
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 12, 2021
First Posted
January 13, 2021
Study Start
May 6, 2021
Primary Completion
June 13, 2022
Study Completion
June 13, 2022
Last Updated
November 2, 2023
Results First Posted
November 2, 2023
Record last verified: 2023-10
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, CSR
- Time Frame
- Data are available 6 months after the primary publication and approval of the indication studied in the US and EU, whichever is later. Data will be indefinitely available for requesting.
- Access Criteria
- A research proposal must be approved by an independent review panel and researchers must sign a data sharing agreement.
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.