A Phase 2a Study to Assess Safety & Pharmacokinetics of Sustained Release Sodium Nitrite in Patients With Diabetic Pain

NCT ID: NCT02412852

Last Updated: 2020-04-24

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

26 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-04-28

Study Completion Date

2017-04-03

Brief Summary

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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.

Detailed Description

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This is a dose-ranging study to evaluate the safety, pharmacokinetics, and tolerability of multiple doses of an oral, sustained release formulation of sodium nitrite (TV1001sr) in subjects with DNP. The primary objective is to assess the safety and tolerability of multiple doses of twice daily 40 mg and 80 mg TV1001sr compared with placebo over a 12 week treatment period and the pharmacokinetics of the sustained release formulation of sodium nitrite. Secondary objectives are to evaluate the pharmacokinetics and markers of functional improvement including pain questionnaires, quantitative sensory testing and changes in markers of diabetes.

Conditions

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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

One placebo tablet administered twice daily for 12 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo tablets containing same excipients and coatings used in the active tablets, without sodium nitrite being added.

40 mg TV1001sr

One 40 mg enteric coated sustained release, sodium nitrite tablets administered twice daily.

Group Type ACTIVE_COMPARATOR

Sodium nitrite

Intervention Type DRUG

Sustained release formulation of sodium nitrite

Placebo (2)

Two placebo tablets administered twice daily for 12 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo tablets containing same excipients and coatings used in the active tablets, without sodium nitrite being added.

80 mg TV1001sr

Two 40 mg enteric coated sustained release, sodium nitrite tablets administered twice daily.

Group Type ACTIVE_COMPARATOR

Sodium nitrite

Intervention Type DRUG

Sustained release formulation of sodium nitrite

Interventions

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Sodium nitrite

Sustained release formulation of sodium nitrite

Intervention Type DRUG

Placebo

Placebo tablets containing same excipients and coatings used in the active tablets, without sodium nitrite being added.

Intervention Type DRUG

Other Intervention Names

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TV1001sr

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Kettering Health Network

OTHER

Sponsor Role collaborator

TheraVasc Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Amol Soin, PhD

Role: PRINCIPAL_INVESTIGATOR

Ohio Pain Clinic

Locations

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Ohio Pain Clinic

Centerville, Ohio, United States

Site Status

Countries

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United States

Other Identifiers

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TheraVasc-TV1001-003

Identifier Type: -

Identifier Source: org_study_id

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