Phase 2
Completed N=26
A Phase 2a Study to Assess Safety & Pharmacokinetics of Sustained Release Sodium Nitrite in Patients With Diabetic Pain
Source: ClinicalTrials.gov NCT02412852 ↗Enrolled (actual)
26
Serious AEs
24.0%
Results posted
Apr 2020
Primary outcomePrimary: Reporting of Adverse Events During 12 Week Study Period — 9; 8; 7; 29 Adverse Events
Summary
In this study, subjects with diabetic neuropathic pain (DNP) will be treated for 12 weeks with either placebo, 40 or 80 mg sustained release sodium nitrite (TV1001sr) twice daily. Primary endpoints will be safety and pharmacokinetics. Assessment of the study medications affects on pain following treatment will also be recorded.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Reporting of Adverse Events During 12 Week Study Period |
9; 8; 7; 29; 23; 24 | — |
| SECONDARY Pharmacokinetics (Blood Levels of Nitrite) |
1399; 9699; 9905 | — |
| SECONDARY The Number of Participants Who Reported Use of Analgesic or Medications for Neuropathic Pain. |
9; 7; 8; 6; 6; 3 | — |
| SECONDARY Assessment of Patients Reported Pain Through Composite Analysis of Pain Questionaires. |
47.4; 34.7; 56.0; 43.4; 30.0; 46.0 | 0.05 |
| SECONDARY Clinical Assessment of Pain. (Quantitative Sensory Testing) |
3.9; 3.4; 6.0; 4.3; 3.1; 5.2 | .15 |
| SECONDARY Assessment of Diabetes. (HbA1C Levels) |
7.7; 7.7; 8.5; 7.3; 7.4; 7.9 | .36 |
| SECONDARY Assessment of Blood Oxygenation. (Pulse Oximetry) |
95.7; 95.6; 96.3; 96.0; 96.4; 95.3 | .93 |
Eligibility Criteria
Inclusion Criteria
- Female subjects must be post-menopausal, sterilized or using suitable birth control
- Diagnosis of diabetes (HbA1c > 6.0)
- Diagnosis of diabetic peripheral neuropathy pain in feet
- Presence of ongoing diabetic neuropathic for at least 3 months
- A pain score of greater than or equal to 4 on the Numerical Pain Rating Scale at screening
- Ability to provide written informed consent
Exclusion Criteria
- Patients with fibromyalgia or regional pain caused by lumbar or cervical compression
- History or diagnosis of significant neurological disease
- History and diagnosis of clinically significant psychiatric diseases
- Serious liver disease
- Poorly controlled diabetes
- Hypersensitivity to sodium nitrite or related compounds
- Life expectancy < 6 months
- A chronic illness that may increase the risks associated with this study
- Active malignancy requiring active anti-neoplastic therapy that will, in the opinion of the investigator, interfere with study treatment or participation
- Pregnant or nursing women
- Current diagnosis of alcohol or other substance abuse
- Current use of sildenafil or other phosphodiesterase Type 5 Inhibitors
- History of methemoglobinemia, (met-Hb ≥ 15%)
- Subject is involved in litigation or receives worker's compensation
- Inability to speak English
Data sourced from ClinicalTrials.gov (NCT02412852). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.