OER Glibenclamide for Neuropathic Pain in Multiple Sclerosis

October 27, 2025 updated by: University of Maryland, Baltimore

A Pilot Study of the Pharmacodynamics and Clinical Effects of Oral Extended Release (OER) Glibenclamide in Multiple Sclerosis Patients With Neuropathic Pain

This is an early phase safety evaluation of the use of oral extended release (OER) glibenclamide, which is otherwise known as glyburide, for use as a treatment for neurologic pain in people with multiple sclerosis. Patients will receive medication to assess safety and tolerability.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is a 2-stage pilot study of the pharmacodynamics and clinical effects of OER glibenclamide in MS patients with neuropathic pain. This pilot study will include 10 subjects. In Stage 1 of the study, which will last 5 days, unblinded subjects will take test-drug twice daily each day and participate in PK determinations. Successful completion of this Stage will establish the ability of a subject to safely tolerate the test-drug. In Stage 2 of the Study, which will last 3 months, blinded subjects who have demonstrated the ability to safely tolerate the test-drug will be asked to evaluate its clinical efficacy specifically with regard to neuropathic pain. By using a 3-block/on-off design with blinding, each subject will serve as their own control during the Stage-2 efficacy part of the study.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Maryland
      • Baltimore, Maryland, United States, 21201
        • University of Maryland School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Age 18-65
  2. Diagnosis of multiple sclerosis per the 2017 Revised McDonald Criteria
  3. Score of ≥ 19 on the painDETECT questionnaire

Exclusion Criteria:

  1. Severe renal disorder from the patient's history (e.g., dialysis) or eGFR of < 30 ml/min.1.73m2
  2. Severe liver disease, or ALT > 3 times upper limit of normal or bilirubin >2 times normal
  3. Acute ST elevation myocardial infarction, and/or acute decompensated heart failure, and/or QTc > 520 ms, and/or known history of cardiac arrest (PEA, VT, VF, asystole), and/or admission for an acute coronary syndrome, myocardial infarction, or coronary intervention within the past 3 months
  4. T2DM treated with insulin or oral medication
  5. Blood glucose < 55 mg/dL at enrollment or immediately prior to administration of study drug or a clinically significant history of hypoglycemia.
  6. Known sulfonylurea treatment within 7 days. Sulfonylureas include glyburide/glibenclamide (Diabeta, Glynase); glyburide plus metformin (Glucovance); glimepiride (Amaryl); repaglinide (Prandin); nateglinide (Starlix); glipizide (Glucotrol, GlibeneseR, MinodiabR); gliclazide (DiamicronR); tolbutamide (Orinase, Tolinase); glibornuride (Glutril)
  7. Known allergy to sulfa or specific allergy to sulfonylurea drugs
  8. Known G6PD enzyme deficiency
  9. Pregnancy. Women must be either postmenopausal, permanently sterilized or, if ≤50 years old must have a negative test for pregnancy obtained before enrollment
  10. Breast-feeding women who do not agree to stop breastfeeding during Study Drug infusion and for 7 days following the end of Study Drug infusion

Study Plan

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

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: oral extended release glibenclamide
  1. Stage 1, Pharmacokinetics/Pharmacodynamics: This will be a 5 day, unblinded evaluation while participants receive OER-glibenclamide
  2. Stage 2, Safety/Efficacy: This part of the study occurs during weeks 2-13, in 3 successive blocks of 4 weeks each. During this stage, group assignments are randomized, and subjects are blinded as to test-drug vs. placebo. Depending on group assignment, exposure to test-drug may occur early (week-2) or later (week-6). In both groups, exposure to placebo occurs for 4 weeks and exposure to drug occurs for 8 successive weeks.
Drug: glibenclamide
oral extended release pill
Other Names:
  • glyburide
Placebo Comparator: Placebo
2. Stage 2, Safety/Efficacy: This part of the study occurs during weeks 2-13, in 3 successive blocks of 4 weeks each. During this stage, group assignments are randomized, and subjects are blinded as to test-drug vs. placebo. Depending on group assignment, exposure to test-drug may occur early (week-2) or later (week-6). In both groups, exposure to placebo occurs for 4 weeks and exposure to drug occurs for 8 successive weeks.
Drug: Placebo
Placebo

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Cmax
Time Frame: over 10 hours
maximum concentration
over 10 hours
Safety
Time Frame: Through week 13
Full reporting of any adverse events on study drug
Through week 13
Cmin
Time Frame: Over 10 hours
Minimum concentration
Over 10 hours
AUC
Time Frame: 10 hours
Area under curve
10 hours
tmax
Time Frame: 10 hours
time to maximum concentration
10 hours
t 1/2
Time Frame: 10 hours
time to 1/2 maximum concentration
10 hours
blood glucose
Time Frame: 10 hours
blood glucose during 10 hour pharmacokinetic measurements
10 hours

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in PROMIS Neuropathic Pain Scale Score
Time Frame: Through week 13
The questionnaire uses a standard T-score metric, with a mean of 50 and a standard deviation of 10 for a relevant reference population (often the US general population). Higher scores indicate a greater level of neuropathic pain qualities.
Through week 13
Change in the PROMISE Pain Interference Score
Time Frame: Through week 13
The PROMIS Pain Interference (PROMIS-PI) scale is a patient-reported outcome measure that assesses how pain affects daily life, including physical, mental, and social activities, as well as sleep and enjoyment. Scores are typically presented on a T-score metric, where 50 is the U.S. general population mean, with higher scores indicating greater pain interference.
Through week 13

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Maryland, Baltimore

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Daniel M Harrison, University of Maryland, Baltimore

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 17, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 27, 2025

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 28, 2025

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 28, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 27, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HP-00115908

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings