NCT02934438

Brief Summary

Reduced nitric oxide (NO) availability is a hallmark of a number of cardiovascular diseases (CVD) including peripheral artery disease (PAD). The investigators will test the hypothesis that sub-chronic NEO40™ supplementation will improve vascular NO function and improve intermittent claudication in patients with PAD. Using a prospective, double blind, placebo controlled experimental design in 30 patients, graded treadmill tests will be performed at baseline and after 3 months after randomization, according to the Skinner-Gardner protocol. Initial claudication distance (ICD) and absolute claudication distance (ACD) will be recorded. Two consecutive treadmill tests will be performed within 1 week at baseline (before administration of study drug); and 2 test will be performed at 3 months. Functional status will also be assessed by the Walking Impairment Questionnaire and the Health Status Survey SF-36 questionnaire (SF-36). Vascular function will be assessed with the use of a Vendys® vascular reactivity (endothelial function) test (Endothelix Inc). Digital pulse amplitude will be assessed using sensor probes on the index finger during reactive hyperemia. Blood will be collected for measurement (by Neogenis) of plasma levels of nitrite and nitrate at baseline and at the completion of the study. Based on previously published trials using this NO technology, the investigators predict that the group receiving the active supplement will exhibit an improvement in claudication distance and all measures of vascular function after 3 months.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2016

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2016

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

October 12, 2016

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 17, 2016

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2017

Completed
Last Updated

October 17, 2016

Status Verified

October 1, 2016

Enrollment Period

1 year

First QC Date

October 12, 2016

Last Update Submit

October 14, 2016

Conditions

Keywords

nitric oxideNeo40 supplement,exercise tolerance

Outcome Measures

Primary Outcomes (1)

  • Skinner-Gardner treadmill protocol.

    The primary end point is the change at 3 months in the absolute claudication distance. Distance will be measured in meters walked on treadmill

    3 months

Secondary Outcomes (1)

  • Endothelial function

    3 months

Study Arms (2)

Neo40 Supplement

ACTIVE COMPARATOR

Utilizing intellectual property developed out of the University of Texas Health Science Center in Houston, Neo40 is a GMP certified, over the counter, all natural formulation that provides a system for generating NO in an endothelium-dependent and independent manner. The NEO40™ Daily™ product ingredients list and packaging was submitted to FDA Office of Compliance by Neogenis Labs, Inc. for use as a dietary supplement. It is made up of Beet root extract, hawthorne berry, Vitamin C, L-citrulline and sodium nitrite. The lozenges utilize natural product chemistry activated by the saliva to generate authentic NO gas in the oral cavity through the one-electron reduction of nitrite. This product's formulation was designed to be a quick dissolve that melts in the mouth within four to five minutes.

Dietary Supplement: Neo40

Placebo

PLACEBO COMPARATOR

A placebo product has been manufactured that looks, tastes and feels like the Neo40 active lozenge without the active ingredients

Dietary Supplement: Placebo

Interventions

Neo40DIETARY_SUPPLEMENT
Neo40 Supplement
PlaceboDIETARY_SUPPLEMENT
Placebo

Eligibility Criteria

Age45 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Persons of at least 45 years of age
  • Persons with unilateral or bilateral PAD confirmed by a resting ankle-brachial index (ABI) \<0.9
  • Persons with stable intermittent claudication for the previous 3 months
  • Persons with the ability to walk 1 to 12 minutes on a treadmill. The pre-randomization treadmill test is limited by exercise-induced leg pain, which is relieved by cessation of the test. Variability of maximum walking distances between 2 consecutive screening treadmill tests will be \<10%.

You may not qualify if:

  • Persons with ischemic rest pain, ulceration or gangrene
  • Persons with history in the previous 3 months of acute coronary syndrome or revascularization involving the peripheral or coronary arteries
  • Persons with major amputation
  • Persons with malignancy within the previous 5 years (except for treated non-melanoma skin cancer)
  • Persons with proliferative retinopathy
  • Persons with uncontrolled hypertension
  • Persons with active inflammatory, infectious, or autoimmune diseases.
  • Persons taking taking phosphodiesterase inhibitors, organic nitrates and/or hydralazine

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Peripheral Arterial Disease

Condition Hierarchy (Ancestors)

AtherosclerosisArteriosclerosisArterial Occlusive DiseasesVascular DiseasesCardiovascular DiseasesPeripheral Vascular Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 12, 2016

First Posted

October 17, 2016

Study Start

October 1, 2016

Primary Completion

October 1, 2017

Study Completion

October 1, 2017

Last Updated

October 17, 2016

Record last verified: 2016-10