NCT03660657

Brief Summary

The main objective of this clinical trial is to evaluate the effectiveness and cost-effectiveness of adding ozone therapy to standard management of patients with advanced ischemic heart disease refractory to medical and surgical treatment.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
1

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Feb 2020

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
terminated

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

August 23, 2018

Completed
14 days until next milestone

First Posted

Study publicly available on registry

September 6, 2018

Completed
1.5 years until next milestone

Study Start

First participant enrolled

February 26, 2020

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2020

Completed
Last Updated

April 4, 2022

Status Verified

April 1, 2022

Enrollment Period

9 months

First QC Date

August 23, 2018

Last Update Submit

April 1, 2022

Conditions

Keywords

complementary and integrative medicinecost-effectiveness ratioischemic heart diseaseheart failureozone therapyquality of life related to healthshared decision-making tool

Outcome Measures

Primary Outcomes (2)

  • Quality of Life (QoL) measured by the Minnesota Living with Heart Failure Questionnaire (MLHFQ) (at the end of ozone therapy)

    Self-reported evaluation of 21 physical, emotional and socioeconomic ways heart failure can adversely affect a patient's life. Each item is scored from 0 (no affected) to 5 (very much affected). Total range from 0 (best) to 105 (worst)

    16 weeks

  • Direct Hospital Cost (at the end of ozone therapy)

    The direct expenses incurred by the hospital in providing services (medication, tests, medical visits...) during the 16 weeks of ozone therapy (in euros).

    16 weeks

Secondary Outcomes (30)

  • Change from Baseline in quality of life by the "5-level, 5-dimension EuroQol" (EQ-5D-5L) questionnaire (at the end of ozone therapy)

    16 weeks

  • Change from Baseline in quality of life by the "Short Form 36-item health survey" (SF-36) questionnaire (at the end of ozone therapy)

    16 weeks

  • Change from Baseline in Montreal Cognitive Assessment (MOCA) questionnaire (at the end of ozone therapy)

    16 weeks

  • Change from Baseline in Biochemical cardiac parameters (High sensitive troponin, pro-brain natriuretic peptide (proBNP)) (at the end of ozone therapy)

    16 weeks

  • Change from Baseline in Biochemical parameters of oxidative stress (at the end of ozone therapy)

    16 weeks

  • +25 more secondary outcomes

Study Arms (2)

Ozone Group:

EXPERIMENTAL

Standard treatment + Ozone therapy (O3/O2)

Drug: Ozone

Control Group:

PLACEBO COMPARATOR

Standard treatment + Oxygen (O2)

Drug: Oxygen

Interventions

OzoneDRUG

Ozone Group: Standard treatment + Ozone therapy (O3/O2) by rectal insufflation. O3/O2 concentration progressively increased from 10 to 30 µg/ml; 40 sessions in 16 weeks.

Also known as: O3
Ozone Group:
OxygenDRUG

Control Group: Standard treatment + Oxygen (O2) by rectal insufflation. O3/O2 concentration = 0 µg/ml (only O2); 40 sessions in 16 weeks.

Also known as: O2
Control Group:

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults with ischemic heart disease, Functional Class III-IV from the NYHA, with symptoms in spite of maximal conventional medical treatment and no suitable to further percutaneous or surgical procedures.
  • It should be required clinical diagnosis by the Cardiology Department and confirmation by cardiac catheterization with coronary angiography.
  • Ejection Fraction \< 40%
  • Patients who have signed and dated the study 's specific informed consent.
  • Before enrollment, women of childbearing potential should obtain a negative result in the serum or urine pregnancy test at the screening visit, and accept the use of appropriate contraceptive methods at least from the 14 days prior to the first dose of the study drug. up to 14 days after the last one.

You may not qualify if:

  • Age \< 18 or \> 85 years old.
  • Severe valve disease and/or dynamic left ventricular outflow tract obstruction.
  • Pregnancy at the time of enrollment.
  • Limited walking ability due to neurologic or orthopedic impairments of the legs
  • Those who are incapable to fill in the scales used to measure the quality of life variables
  • Cerebral vascular accident (CVA or Transient Ischemic Attack (TIA) within the previous 3 months or carotid stenosis \> 80%.
  • Acute myocardial infarction (AMI), Percutaneous coronary intervention (PCI) or transmyocardial laser revascularization (TMR or PMR) within the previous 3 months.
  • Hemodynamically or clinically unstable patients.
  • Severe or limiting pulmonary diseases.
  • Specific liver enzymes \[Aspartate Aminotransferase (AST), and Alanine Aminotransferase (ALT) \> 5 times the upper limit of normal
  • Increased creatinine \> 3 times the upper limit of normal or Glomerular Filtration Rate (GFR) \< 25 ml/min or who are on chronic renal dialysis.
  • Severe peripheral vascular disease with rest pain or significant chronic wounds.
  • Uncontrolled cancer disease or severe active systemic infection or HIV.
  • Life expectancy \< 4 months
  • Contraindication or disability for rectal ozone administration or to attend scheduled treatments.
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Dr. Negrin University Hospital

Las Palmas de Gran Canaria, Las Palmas, 35019, Spain

Location

Related Publications (11)

  • Buyuklu M, Kandemir FM, Set T, Bakirci EM, Degirmenci H, Hamur H, Topal E, Kucukler S, Turkmen K. Beneficial Effects of Ozone Therapy on Oxidative Stress, Cardiac Functions and Clinical Findings in Patients with Heart Failure Reduced Ejection Fraction. Cardiovasc Toxicol. 2017 Oct;17(4):426-433. doi: 10.1007/s12012-017-9400-8.

    PMID: 28097518BACKGROUND
  • Bocci V, Borrelli E, Travagli V, Zanardi I. The ozone paradox: ozone is a strong oxidant as well as a medical drug. Med Res Rev. 2009 Jul;29(4):646-82. doi: 10.1002/med.20150.

    PMID: 19260079BACKGROUND
  • Bocci VA, Zanardi I, Travagli V. Ozone acting on human blood yields a hormetic dose-response relationship. J Transl Med. 2011 May 17;9:66. doi: 10.1186/1479-5876-9-66.

    PMID: 21575276BACKGROUND
  • Bocci V, Valacchi G. Nrf2 activation as target to implement therapeutic treatments. Front Chem. 2015 Feb 2;3:4. doi: 10.3389/fchem.2015.00004. eCollection 2015.

    PMID: 25699252BACKGROUND
  • Clavo B, Perez JL, Lopez L, Suarez G, Lloret M, Rodriguez V, Macias D, Santana M, Morera J, Fiuza D, Robaina F, Gunderoth M. Effect of ozone therapy on muscle oxygenation. J Altern Complement Med. 2003 Apr;9(2):251-6. doi: 10.1089/10755530360623365.

    PMID: 12804078BACKGROUND
  • Clavo B, Catala L, Perez JL, Rodriguez V, Robaina F. Ozone Therapy on Cerebral Blood Flow: A Preliminary Report. Evid Based Complement Alternat Med. 2004 Dec;1(3):315-319. doi: 10.1093/ecam/neh039. Epub 2004 Oct 6.

    PMID: 15841265BACKGROUND
  • Clavo B, Eltobgy K, Caballero E, Abad C, Rodriguez-Esparragon F, Santana-Rodriguez N. Is There a Place for Ozone Therapy in Patients with Heart Failure? Cardiovasc Toxicol. 2017 Oct;17(4):496-497. doi: 10.1007/s12012-017-9423-1. No abstract available.

    PMID: 28853025BACKGROUND
  • Di Filippo C, Marfella R, Capodanno P, Ferraraccio F, Coppola L, Luongo M, Mascolo L, Luongo C, Capuano A, Rossi F, D'Amico M. Acute oxygen-ozone administration to rats protects the heart from ischemia reperfusion infarct. Inflamm Res. 2008 Oct;57(10):445-9. doi: 10.1007/s00011-008-7237-0.

    PMID: 18827966BACKGROUND
  • Giunta R, Coppola A, Luongo C, Sammartino A, Guastafierro S, Grassia A, Giunta L, Mascolo L, Tirelli A, Coppola L. Ozonized autohemotransfusion improves hemorheological parameters and oxygen delivery to tissues in patients with peripheral occlusive arterial disease. Ann Hematol. 2001 Dec;80(12):745-8. doi: 10.1007/s002770100377. Epub 2001 Oct 13.

    PMID: 11797116BACKGROUND
  • Martinez-Sanchez G, Delgado-Roche L, Diaz-Batista A, Perez-Davison G, Re L. Effects of ozone therapy on haemostatic and oxidative stress index in coronary artery disease. Eur J Pharmacol. 2012 Sep 15;691(1-3):156-62. doi: 10.1016/j.ejphar.2012.07.010. Epub 2012 Jul 13.

    PMID: 22796450BACKGROUND
  • Bocci V, Zanardi I, Travagli V. Ozone: a new therapeutic agent in vascular diseases. Am J Cardiovasc Drugs. 2011;11(2):73-82. doi: 10.2165/11539890-000000000-00000.

    PMID: 21446774BACKGROUND

Related Links

MeSH Terms

Conditions

Myocardial IschemiaHeart Failure

Interventions

OzoneOxygen

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular DiseasesVascular Diseases

Intervention Hierarchy (Ancestors)

GasesInorganic ChemicalsChalcogensElements

Study Officials

  • Bernardino Clavo, MD, PhD

    Dr. Negrín University Hospital, Las Palmas, Spain

    STUDY CHAIR
  • Pedro G Serrano-Aguilar, MD, PhD

    Servicio de Evaluación. Servicio Canario de Salud. Spain

    STUDY DIRECTOR
  • Renata Linertová, PhD

    Servicio de Evaluación. Servicio Canario de Salud. Spain

    PRINCIPAL INVESTIGATOR
  • Bernardino Clavo, MD, PhD

    Dr. Negrín University Hospital, Las Palmas, Spain

    PRINCIPAL INVESTIGATOR
  • Celestina Amador, MD, PhD

    Dr. Negrín University Hospital, Las Palmas, Spain

    PRINCIPAL INVESTIGATOR
  • Francisco Rodríguez-Esparragón, BSc, PhD

    Dr. Negrín University Hospital, Las Palmas, Spain

    PRINCIPAL INVESTIGATOR
  • Norberto Santana-Rodríguez, MD, PhD

    King Faisal Specialist Hospital & Research Center, Riyadh, Kingdom of Saudi Arabia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Masking of: patients, cardiologist and cardiac surgeons (clinical assessment), investigators obtaining other parameters (quality of life, biochemical and clinical parameters), investigators for statistical analysis
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Standard treatment + ozone therapy (O3/O2) versus Standard treatment + oxygen (O2) as placebo
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
MD, PhD, Head of Research Unit

Study Record Dates

First Submitted

August 23, 2018

First Posted

September 6, 2018

Study Start

February 26, 2020

Primary Completion

November 30, 2020

Study Completion

November 30, 2020

Last Updated

April 4, 2022

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will not share

Locations