Efficacy, Safety, and PK of LX9211 in Participants With Diabetic Peripheral Neuropathic Pain

NCT ID: NCT04455633

Last Updated: 2025-06-25

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

319 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-09-03

Study Completion Date

2022-06-28

Brief Summary

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Evaluation of the efficacy of a low and high dose of LX9211 compared to placebo in reducing pain related to diabetic peripheral neuropathy (DPNP) over an 11 week assessment period.

Detailed Description

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Conditions

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Diabetic Peripheral Neuropathy Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Placebo

Following a 2-week run-in period, participants were randomized to LX9211 matching placebo received as a single loading dose, orally, on Day 1, followed by maintenance doses of LX9211 matching placebo tablets, orally, once daily (QD) from Day 2 up to Week 6. Following completion of the 6-week treatment, all participants were followed for safety and received single oral tablet of LX9211 matching placebo, QD, for 5 weeks during the safety follow-up.

Group Type PLACEBO_COMPARATOR

LX9211 Matching Placebo

Intervention Type DRUG

Oral Tablets

LX9211 100 mg/10 mg

Following a 2-week run-in period, participants were randomized to receive a single loading dose of LX9211, 100 milligrams (mg), tablet, orally, on Day 1, followed by maintenance doses of LX9211 10 mg tablets, orally, QD from Day 2 up to Week 6. Following completion of the 6-week treatment, all participants were followed for safety and received single oral tablet of LX9211 matching placebo, QD, for 5 weeks during safety follow-up.

Group Type EXPERIMENTAL

LX9211

Intervention Type DRUG

Oral Tablets

LX9211 200 mg/20 mg

Following a 2-week run-in period, participants were randomized to receive a single loading dose of LX9211, 200 mg orally on Day 1, followed by maintenance doses of LX9211, 20 mg, orally, QD from Day 2 up to Week 6. Following completion of the 6-week treatment, all participants were followed for safety and received single oral tablet of LX9211 matching placebo, QD, for 5 weeks during safety follow-up.

Group Type EXPERIMENTAL

LX9211

Intervention Type DRUG

Oral Tablets

Interventions

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LX9211

Oral Tablets

Intervention Type DRUG

LX9211 Matching Placebo

Oral Tablets

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Participant has given written informed consent to participate in the study in accordance with local regulations
* Adult male and female participants ≥18 years of age at the time of screening
* Body mass index ≥18.0 to ≤40.0 kg/m2 at Screening
* Diagnosis of diabetic peripheral neuropathic pain (DPNP) at Screening
* Pain from DPN present for at least 6 months
* Haemoglobin A1C ≤11% at screening
* Stable regimen for the treatment of type 1 diabetes mellitus (T1DM) or type 2 diabetes mellitus (T2DM) for ≥1 month prior to Screening

Exclusion Criteria

* Presence of other painful conditions that may confound assessment or self-evaluation of DPNP
* History of major depressive episode, active, significant psychiatric disorders
* History of clinically significant drug or alcohol use disorder
* History of neurolytic or neurosurgical therapy for DPNP
* Use of opioid medications for management of DPNP within the 2 months prior to Screening Visit
* Use of non-steroidal anti-inflammatory drugs (NSAIDs) less than 2 weeks prior to the Screening Visit
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Lexicon Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Suma Gopinathan, PhD

Role: STUDY_DIRECTOR

Lexicon Pharmaceuticals

Locations

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Lexicon Investigational Site

Mobile, Alabama, United States

Site Status

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Chandler, Arizona, United States

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Glendale, Arizona, United States

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Kingman, Arizona, United States

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Tucson, Arizona, United States

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Anaheim, California, United States

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Greenbrae, California, United States

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Los Angeles, California, United States

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North Hollywood, California, United States

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Sacramento, California, United States

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Tustin, California, United States

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Brandon, Florida, United States

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Fort Myers, Florida, United States

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Jacksonville, Florida, United States

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Lake City, Florida, United States

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New Port Richey, Florida, United States

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Ormond Beach, Florida, United States

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Winter Park, Florida, United States

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Macon, Georgia, United States

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Evansville, Indiana, United States

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Boston, Massachusetts, United States

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South Dartmouth, Massachusetts, United States

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Ann Arbor, Michigan, United States

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Dearborn, Michigan, United States

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Farmington Hills, Michigan, United States

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Sterling Heights, Michigan, United States

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Hazelwood, Missouri, United States

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Omaha, Nebraska, United States

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Berlin, New Jersey, United States

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Westfield, New York, United States

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Williamsville, New York, United States

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Asheville, North Carolina, United States

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Cary, North Carolina, United States

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Morehead City, North Carolina, United States

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Greenville, South Carolina, United States

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Austin, Texas, United States

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Austin, Texas, United States

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Dallas, Texas, United States

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Flower Mound, Texas, United States

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Houston, Texas, United States

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Houston, Texas, United States

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Pearland, Texas, United States

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Salt Lake City, Utah, United States

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Lexicon Investigational Site

Renton, Washington, United States

Site Status

Countries

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United States

References

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Luo G, Chen L, Kostich WA, Hamman B, Allen J, Easton A, Bourin C, Gulianello M, Lippy J, Nara S, Maishal TK, Thiyagarajan K, Jalagam P, Pattipati SN, Dandapani K, Dokania M, Vattikundala P, Sharma V, Elavazhagan S, Verma MK, Das ML, Wagh S, Balakrishnan A, Johnson BM, Santone KS, Thalody G, Denton R, Saminathan H, Holenarsipur VK, Kumar A, Rao A, Putlur SP, Sarvasiddhi SK, Shankar G, Louis JV, Ramarao M, Conway CM, Li YW, Pieschl R, Tian Y, Hong Y, Ditta J, Mathur A, Li J, Smith D, Pawluczyk J, Sun D, Yip S, Wu DR, Vetrichelvan M, Gupta A, Wilson A, Gopinathan S, Wason S, Bristow L, Albright CF, Bronson JJ, Macor JE, Dzierba CD. Discovery of (S)-1-((2',6-Bis(difluoromethyl)-[2,4'-bipyridin]-5-yl)oxy)-2,4-dimethylpentan-2-amine (BMS-986176/LX-9211): A Highly Selective, CNS Penetrable, and Orally Active Adaptor Protein-2 Associated Kinase 1 Inhibitor in Clinical Trials for the Treatment of Neuropathic Pain. J Med Chem. 2022 Mar 24;65(6):4457-4480. doi: 10.1021/acs.jmedchem.1c02131. Epub 2022 Mar 8.

Reference Type DERIVED
PMID: 35257579 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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LX9211.201

Identifier Type: OTHER

Identifier Source: secondary_id

LX9211.1-201-DPN

Identifier Type: -

Identifier Source: org_study_id

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