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CompletedPhase 2

EPPIC-Net: Novaremed Painful Diabetic Peripheral Neuropathy ISA

Key facts

Who runs it
James P. Rathmell, MD
Where
Baltimore, Beavercreek, Boston, Chicago, Clermont, Flossmoor, Gainesville, Hazelwood, Houston, Kansas City, Madison, New York, Norfolk, Orangeburg, Pittsburgh, Rapid City, Richmond, Rochester, Salt Lake City, San Diego, and Seattle, United StatesSee the 26 sites
Trial code
Status
Completed
Phase
Phase 2
People taking part
127 people enrolled
Started
21 Sept 2022
Ended
31 Aug 2025
Type of study
Interventional, 2 groupsOne group gets a placebo (a dummy treatment), for comparison.
Treatments tested
  • NRD135SE.1
  • Placebo
Record updated
12 November 2026

Who can take part

Age
18 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 13 criteriaShow less

Other criteria

  • 7.1 ISA-Specific Inclusion Criteria (To be used in conjunction with Platform Protocol criteria; note, some ISA criteria may be more stringent than Platform criteria; always follow the more stringent criteria when determining eligibility.)
  • Provides written consent for the EN21-01 ISA. Legally Authorized Representatives (LARs) are not allowed, but impartial witnesses may be utilized as needed for visually impaired participants
  • Patient-reported daily 11-point NRS (for average pain over the last 24 hours) meets the criteria specified in "Appendix B: Blinded Information" during both the 7-day screening and 7-day baseline periods. The algorithm will be assessed centrally; Waivers to the inclusion criteria will not be allowed. 7.2 ISA-Specific Exclusion Criteria (To be used in conjunction with Platform Protocol criteria; note, some ISA criteria may be more stringent than Platform criteria; always follow the more stringent criteria when determining eligibility.) Participants fulfilling any of the following criteria are not eligible for the study
  • Diagnosis of alcohol or substance abuse or dependence (other than nicotine or caffeine) within the 2 years before the Screening visit. **This criterion is more stringent than a related Platform Protocol criterion.**
  • Moderate or severe renal impairment, known (documented) or defined as an estimated/calculated creatinine clearance/estimated glomerular filtration rate (eGFR) < 45 mL/min/1.73 m2, according to the Chronic Kidney Disease Epidemiology Collaboration formula during the screening process. **This criterion is more stringent than a related Platform Protocol criterion.**
  • Any of the following conditions related to corrected QT intervals using Fridericia's formula (QTcF):; A QTcF > 500 ms prior to starting IP, up to and including the V3 pre-dose ECG; A history of the following additional risk factors for torsade de pointes: heart failure, hypokalemia, history or family history of long QT syndrome
  • History of myocardial infarction, other clinically active significant heart disease, or stroke. **This criterion is more stringent than a related Platform Protocol criterion.**
  • Participants known to have participated in four or more studies for investigational pain drugs
  • Participants known to be non-responders to more than three previous neuropathic pain medications at adequate doses over at least 4 weeks. Adequate doses (given as total daily doses) are defined as follows: 1,800 mg gabapentin; 300 mg pregabalin; opioid analgesics 60 mg oxycodone equivalent or 200 mg tramadol; 75 mg amitriptyline or equivalent tricyclic antidepressant; 60 mg duloxetine; 150 mg venlafaxine
  • Known hypersensitivity or contraindication to any excipients of the study drug formulation
  • Taking prohibited medications as described in Appendix A, "Prohibited Medications."
  • Major depressive episode within the 6 months before screening and/or a history of diagnosed recurrent major depressive disorder within two years. Any of the following conditions related to suicidality:; Any suicidal ideation with intent, with or without a plan, at screening, i.e., answering "yes" to questions 4 or 5 on the Suicidal Ideation section of the Baseline/Screening version of the Columbia-Suicide Severity Rating Scale (C-SSRS); Answering "yes" on any item of the Suicidal Behavior Section (except for the "non-suicidal self-injurious behavior") of the C-SSRS if this behavior occurred in the past 2 years; A lifetime history of suicide attempt (V1)
  • Previous known or possible exposure to NRD135S.E1; Waivers to the exclusion criteria will not be allowed

Where in United States

  • Johns Hopkins University School Of MedicineBaltimore, United States
  • University of Maryland, BaltimoreBaltimore, United States
  • Clinical Inquest CenterBeavercreek, United States
  • MGH Department of Anesthesia, Critical Care, and PainBoston, United States
  • Northwestern Department of NeurologyChicago, United States
  • South Lake Pain InstituteClermont, United States
  • Healthcare Research Network (Flossmoor)Flossmoor, United States
  • SIMEDHealth, LLCGainesville, United States
  • University of FloridaGainesville, United States
  • Healthcare Research Network-HazelwoodHazelwood, United States
  • Clinicore InternationalHouston, United States
  • Nerve and Muscle Center of TexasHouston, United States
  • University of Kansas Medical CenterKansas City, United States
  • University of WisconsinMadison, United States
  • Columbia University Medical Center/Neurological InstituteNew York, United States
  • Mount Sinai School of MedicineNew York, United States
  • NYU Langone ManhattanNew York, United States
  • Eastern Virginia Medical SchoolNorfolk, United States
  • Low Country Pain CenterOrangeburg, United States
  • University of PittsburghPittsburgh, United States
  • American Indian Clinical Trials Research NetworkRapid City, United States
  • VCU Department of NeurologyRichmond, United States
  • University of RochesterRochester, United States
  • University of Utah School of MedicineSalt Lake City, United States
  • University of California San DiegoSan Diego, United States
  • University of WashingtonSeattle, United States

About the trial

What the trial wants to find out

The goal of the EN21-01 clinical trial is to learn if a drug called NRD135S.E1 reduces nerve pain caused by Painful Diabetic Peripheral Neuropathy (PDPN) in adults compared to a matching placebo (a look-alike substance that contains no drug). It will also learn about the safety of drug NRD135S.E1. The main questions it aims to answer are:

Read full original descriptionShow less

Is there a change in participants' average weekly pain score from the start of the study (Baseline) to Week 12. Pain is measured each day using the Numeric Rating Scale (NRS), and the weekly average is called Weekly Average Pain (WAP).

The study will also measure:

1. The number of participants who have at least a 30% decrease in their Weekly Average Pain (WAP) from Baseline to Week 12. 2. The number of participants who have at least a 50% decrease in their Weekly Average Pain (WAP) from Baseline to Week 12.

Participants will:

Take drug NRD135S.E1 or a placebo every day for 12 weeks. Visit the clinic once every 3 weeks for checkups and tests. Keep a diary of their pain symptoms and the number of times they use a pain medication.

The 2 groups in the trial

  • NRD135S.E1 80mg/dayTreatment being tested

    NRD135S.E1 as a potential treatment for moderate to severe painful diabetic peripheral neuropathy (PDPN). While the activity of NRD135S.E1 has been extensively studied, its molecular target is not known, though it does not appear to work through any of the opioid receptors or molecular pathways currently targeted by available analgesics. The best evidence suggests it may act, at least in part, through modulating the Lyn kinase signaling pathway In clinical studies, NRD135S.E1 has been well tolerated at all dose levels tested in single-dose (up to 1,200 mg) and repeat-dose regimens (up to 300 mg/day over 5 days or 150 mg over 3 weeks), and it has been shown to have predictable pharmacokinetics with dose-dependent increases in exposure.

    Treatment: NRD135SE.1

  • Matching placeboPlacebo, for comparison

    A matching placebo comparator will be used.

    Treatment: Placebo

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
EPPIC-Net EN21-01 A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Assess the Safety and Efficacy of 80 mg Daily of NRD135S.E1 Versus Placebo in Adult and Elderly Participants With Painful Diabetic Peripheral Neuropathy.
Record updated
12 November 2026