Suspended

NGX-4010 Capsaicin Patch for Neuropathic Pain Treatment

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What is being tested

Data Collection

Who is being recruted

Varicella Zoster Virus Infection+31

+ Blood-Borne Infections

+ Urogenital Diseases

Over 18 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 2
Interventional
See protocol details

Summary

Principal SponsorNeurogesX
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

This is a study focused on treating neuropathic pain, a type of pain caused by damage to the nerves. It's specifically designed for individuals who have recently participated in a previous study (NeurogesX Study C111) and received treatment with a medication called NGX-4010, or Capsaicin Patch. The goal is to further explore the potential benefits of this treatment for neuropathic pain. In this study, participants will continue to receive the NGX-4010 treatment, which comes in the form of a patch. The study will monitor the effects of the treatment over time to understand its long-term impact on neuropathic pain. It's important to note that as an open-label study, everyone involved knows which treatment is being used.

Official TitleAn Open-Label Extension Study of NGX-4010 for the Treatment of Neuropathic Pain
Principal SponsorNeurogesX
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Over 18 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Varicella Zoster Virus InfectionBlood-Borne InfectionsUrogenital DiseasesGenital DiseasesCommunicable DiseasesDiabetes MellitusDiabetic NeuropathiesDNA Virus InfectionsEndocrine System DiseasesHerpes ZosterHerpesviridae InfectionsImmunologic Deficiency SyndromesImmune System DiseasesInfectionsMetabolic DiseasesNervous System DiseasesNeuralgiaNeurologic ManifestationsNeuromuscular DiseasesNutritional and Metabolic DiseasesPainPeripheral Nervous System DiseasesPolyneuropathiesRetroviridae InfectionsRNA Virus InfectionsSexually Transmitted DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsVirus DiseasesSexually Transmitted Diseases, ViralHIV InfectionsLentivirus InfectionsGlucose Metabolism DisordersDiabetes Complications

Criteria

Key Eligibility Criteria: * Must have completed NeurogesX Study C111 and received treatment with NGX-4010 (Capsaicin Patch) within 12 weeks (up to +7 days) before entry into Study C114. * Demonstrated adherence to protocol requirements during Study C111, and willing and able to comply with protocol requirements for the duration of the study participation. * Must not have had any serious adverse experience since enrollment in Study C111, whether or not considered to be study drug-related. * Must have intact skin at the treatment area. * Must be prepared to remain on the same pain medications at the same doses as before the study for the entire duration of the study (36 weeks). * Must not use topical pain medications on painful areas. * Must be at least 18 years old, not pregnant, and able to take care of self independently, with only occasional assistance if needed. * No history or current problem with substance abuse.

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
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