NCT02552888

Brief Summary

The proposed randomized controlled trial will test the safety and efficacy of combination therapy with sodium nitrite and isoquercetin on endothelial function and inflammation among patients with chronic kidney disease.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
70

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Mar 2016

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

September 10, 2015

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 17, 2015

Completed
6 months until next milestone

Study Start

First participant enrolled

March 1, 2016

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2017

Completed
3.9 years until next milestone

Results Posted

Study results publicly available

April 20, 2021

Completed
Last Updated

April 20, 2021

Status Verified

March 1, 2021

Enrollment Period

1.3 years

First QC Date

September 10, 2015

Results QC Date

February 8, 2021

Last Update Submit

March 23, 2021

Conditions

Keywords

Endothelial DysfunctionInflammationOxidative StresseGFRUrine Albumin

Outcome Measures

Primary Outcomes (1)

  • Mean Percentage Change in Endothelium-dependent Flow-mediated Vasodilation (FMD) Over 12 Weeks

    FMD was measured using high resolution ultrasound on the brachial artery. FMD was calculated as the maximal percentage change in vessel size during hyperemia . The mean changes between baseline, 6 weeks and 12 weeks in FMD with 95% CI were calculated using linear mixed effects model.

    Baseline, 6 weeks, 12 weeks

Secondary Outcomes (9)

  • Mean Change in Endothelial Function Biomarkers VCAM-1, ICAM-1, E-selectin and vWF Over 12 Weeks

    Baseline, 6 weeks, 12 weeks

  • Mean Change in Endothelial Function Biomarker Asymmetrical DiMethylArginine (ADMA) Over 12 Weeks

    Baseline, 6 weeks, 12 weeks

  • Mean Change in Endothelial Function Biomarker Endostatin Over 12 Weeks

    Baseline, 6 weeks, 12 weeks

  • Mean Change in Endothelial Function Biomarker Urine Epidermal Growth Factor (UEGF) Over 12 Weeks

    Baseline, 6 weeks, 12 weeks

  • Mean Change in Inflammatory Biomarker C-Reactive Protein (CRP) Over 12 Weeks

    Baseline, 6 weeks, 12 weeks

  • +4 more secondary outcomes

Other Outcomes (11)

  • Mean Percentage Change in Methemoglobin Over 12 Weeks

    Baseline, 6 weeks, 12 weeks

  • Mean Change in Isoquercetin Over 12 Weeks

    Baseline, 6 weeks, 12 weeks

  • Mean Change in Plasma Nitrite Over 12 Weeks

    Baseline, 6 weeks, 12 weeks

  • +8 more other outcomes

Study Arms (2)

treatment

EXPERIMENTAL

Immediate release sodium nitrite 40 mg by mouth twice per day and Isoquercetin 225 mg by mouth once per day.

Drug: Immediate release sodium nitriteDietary Supplement: Isoquercetin

Placebos

PLACEBO COMPARATOR

identical placebos.

Other: placebos

Interventions

Immediate release sodium nitrite 40 mg by mouth twice per day

Also known as: TV1001
treatment
IsoquercetinDIETARY_SUPPLEMENT

Isoquercetin 225 mg by mouth once per day

Also known as: 3-O-glucoside
treatment

placebos

Placebos

Eligibility Criteria

Age21 Years - 74 Years
Sexall(Gender-based eligibility)
Gender Eligibility Detailsparticipant eligibility is based on self-representation of gender identity.
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women aged 21-74 years old with any race/ethnicity background
  • CKD as defined by an eGFR \<60 ml/min/1.73 m2 or urinary albumin to creatinine ratio ≥ 30 mg/g or protein to creatinine ratio ≥150 mg/g.
  • Systolic BP≥120 and \<180 mmHg and/or diastolic BP≥70 and \<110 mmHg

You may not qualify if:

  • Allergic to organic nitrite, isoquercetin, niacin, or vitamin C
  • Institutionalized (e.g., prisoner, nursing home or skilled nursing facility resident)
  • Unable or unwilling to give consent
  • Known HIV infection and/or AIDS
  • Pregnant or lactating women
  • Currently on dialysis
  • Previous or current organ or bone marrow transplant
  • Receiving immunosuppressive treatment or other immunotherapy
  • Receiving chemotherapy or alkylating agents for systemic cancer
  • Recent acute myocardial infarction, cerebrovascular accidence or transient ischemic attack, or hospitalization in 3 months
  • Acute kidney injury within the previous 3 months
  • Currently taking a phosphodiesterase-5 enzyme inhibitor, such as Viagra
  • History of chronic headaches
  • Chronically receiving fluoroguinolones, cyclosporin (neural, sandimmune), nitrate drug, NSAIDS ( except aspirin ≤ 81 mg daily), allopurinol or uloric, meperidine and related central nervous system (CNS) depressants, oral glucocorticoids, and not willing or able to stop during study period.
  • Active infection (i.e. systemic or osteomyelitis)
  • +10 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tulane School of Medicine

New Orleans, Louisiana, 70112, United States

Location

Related Publications (2)

  • Colombijn JM, Hooft L, Jun M, Webster AC, Bots ML, Verhaar MC, Vernooij RW. Antioxidants for adults with chronic kidney disease. Cochrane Database Syst Rev. 2023 Nov 2;11(11):CD008176. doi: 10.1002/14651858.CD008176.pub3.

  • Chen J, Hamm LL, Bundy JD, Kumbala DR, Bodana S, Chandra S, Chen CS, Starcke CC, Guo Y, Schaefer CM, Lustigova E, Mahone E, Vadalia AM, Livingston T, Obst K, Hernandez J, Bokhari SR, Kleinpeter M, Alper AB, Lukitsch I, He H, Nieman DC, He J. Combination Treatment with Sodium Nitrite and Isoquercetin on Endothelial Dysfunction among Patients with CKD: A Randomized Phase 2 Pilot Trial. Clin J Am Soc Nephrol. 2020 Nov 6;15(11):1566-1575. doi: 10.2215/CJN.02020220. Epub 2020 Oct 6.

MeSH Terms

Conditions

Renal Insufficiency, ChronicInflammation

Interventions

isoquercitrin

Condition Hierarchy (Ancestors)

Renal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Dr. Jing Chen
Organization
Tulane School of Medicine

Study Officials

  • Jing Chen, MD

    Tulane University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 10, 2015

First Posted

September 17, 2015

Study Start

March 1, 2016

Primary Completion

June 1, 2017

Study Completion

June 1, 2017

Last Updated

April 20, 2021

Results First Posted

April 20, 2021

Record last verified: 2021-03

Data Sharing

IPD Sharing
Will share

deidentified data sets may be available to other researchers.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
no end date.
Access Criteria
The de-identified patient level data will be provided directly to the researcher in a secure manner, and the researcher is responsible for protecting the confidentiality and integrity of the data while the research is conducted.

Locations