Evidence map›Paper›PMID 31779159›Full record

ReviewAntioxidants (Basel, Switzerland)2019

Modulation of Oxidative Stress by Ozone Therapy in the Prevention and Treatment of Chemotherapy-Induced Toxicity: Review and Prospects.

Bernardino Clavo, Francisco Rodríguez-Esparragón, Delvys Rodríguez-Abreu, Gregorio Martínez-Sánchez, Pedro Llontop, David Aguiar-Bujanda, Leandro Fernández-Pérez, Norberto Santana-Rodríguez

7 registry-linked trialsOpen access · goldAbstract readReview
In one paragraph

Review in Antioxidants (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 7 registered trials, which are not on this map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
9.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04299893 phase2 / phase3recruitingnot on this mapstarted 2020, after this paper: background citation

Effectiveness and Cost-effectiveness of Ozone Therapy in Patients With Pain Secondary to Chemotherapy-induced Peripheral Neuropathy. Randomized, Triple-blind Clinical Trial (O3NPIQ)

TypeinterventionalSponsorBernardino Clavo, MD, PhDRan2020 to 2027Enrolled42ConditionsChemotherapy-induced Peripheral Neuropathy, Pain, Neuropathic, Pain SyndromeArmsOzone, Oxygen
NCT05417737 recruitingnot on this mapstarted 2022, after this paper: background citation

Prospective and Observational Study of Patients Referred to the Chronic Pain Unit for Palliative Treatment With Ozone Therapy Between 2022 and 2025. (EPOOzo)

Typeobservational_patient_registrySponsorBernardino Clavo, MD, PhDRan2022 to 2026Enrolled105ConditionsRadiation Toxicity, Chemotherapeutic Toxicity, Chemotherapy-induced Peripheral Neuropathy, Delayed Wound HealingArmsOzone therapy
NCT06706544 phase2 / phase3recruitingnot on this mapstarted 2025, after this paper: background citation

Effectiveness and Cost-effectiveness of Ozone Treatment in Patients With Paresthesia (Numbness, Tingling) Secondary to Chemotherapy-induced Peripheral Neuropathy. Randomized, Triple-blind Clinical Trial (OzoParQT)

TypeinterventionalSponsorBernardino Clavo, MD, PhDRan2025 to 2030Enrolled42ConditionsChemotherapy Induced Peripheral Neuropathy (CIPN), Paresthesia, Numbness, TinglingArmsOzone therapy, Oxygen (placebo)
NCT06799351 phase2 / phase3recruitingnot on this mapstarted 2025, after this paper: background citation

Evaluation of the Gut Microbiome Profiles in Patients with Chemotherapy-induced Peripheral Neuropathy Treated in the Randomized Clinical Trial with Ozone OzoParQT (NCT06706544).

TypeinterventionalSponsorBernardino Clavo, MD, PhDRan2025 to 2030Enrolled42ConditionsChemotherapy Induced Peripheral Neuropathy (CIPN), Paresthesia, Numbness, TinglingArmsOzone therapy, Oxygen (placebo)
NCT06816095 recruitingnot on this mapstarted 2025, after this paper: background citation

Gene and Molecular Pathway Characterization of the Response to Ozone Treatment in Gynecological Tumor Patients With Chronic Pelvic Pain Secondary to Radio-chemotherapy

TypeobservationalSponsorBernardino Clavo, MD, PhDRan2025 to 2027Enrolled40ConditionsChronic Pelvic Pain Syndrome (CPPS), Radiation-Induced Disorder, Radiotherapy Side Effects, Side Effect of Chemotherapy
NCT07325851 not yet recruitingnot on this mapstarted 2026, after this paper: background citation

Prospective and Observational Study of Patients Referred to the Chronic Pain Unit for Palliative Treatment With Ozone Therapy Between 2026 and 2029. Prospective Study EPOOzo-2.

Typeobservational_patient_registrySponsorBernardino Clavo, MD, PhDRan2026 to 2030Enrolled120ConditionsChemotherapy-Induced Peripheral Neuropathy, Radiation Toxicity, Chronic Pain, Delayed Wound HealingArmsOzone Therapy
NCT07728422 nacompletednot on this mapstarted 2024, after this paper: background citation

Effects of Ozone Therapy Modalities on Biochemical Markers of Muscle Damage Following Eccentric Exercise

TypeinterventionalSponsorInonu UniversityRan2024 to 2025Enrolled32ConditionsOzone Therapy, Muscle Damage, Oxidative Stress, RecoveryArmsAutohemotherapy, Ozone Sauna Therapy, Ozonated Lavender Oil Massage
3 · Its place in the literature

Who cites it

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 100 citations in OpenAlex.

  1. Pooled it
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  4. Review
  5. Article
  6. Review
  7. Review
  8. Frontiers in medicine · 2025
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  9. Review
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  11. Review
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  16. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Bernardino ClavoResearch Unit, Dr. Negrín University Hospital, 35019 Las Palmas de Gran Canaria, Spain.ORCID 0000-0003-2522-1064
Francisco Rodríguez-EsparragónResearch Unit, Dr. Negrín University Hospital, 35019 Las Palmas de Gran Canaria, Spain.ORCID 0000-0003-1663-3673
Delvys Rodríguez-AbreuMedical Oncology Department, Complejo Hospitalario Universitario Insular Materno-Infantil de Gran Canaria, University of Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain.
Gregorio Martínez-SánchezScientific Advisor, Freelance, 60126 Ancona, Italy.
Pedro LlontopExperimental Medicine and Surgery Unit of Hospital Gregorio Marañon and the Health Research Institute of Hospital Gregorio Marañon (IiSGM), 28007 Madrid, Spain.ORCID 0000-0002-4469-1099
David Aguiar-BujandaMedical Oncology Department, Dr. Negrín University Hospital, 35019 Las Palmas de Gran Canaria, Spain.ORCID 0000-0002-5623-9315
Leandro Fernández-PérezUniversitary Institute for Research in Biomedicine and Health (IUIBS), Molecular and Translational Pharmacology Group, University of Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain.ORCID 0000-0001-7802-465X
Norberto Santana-RodríguezUniversitary Institute for Research in Biomedicine and Health (IUIBS), Molecular and Translational Pharmacology Group, University of Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain.
Universidad de Las Palmas de Gran Canaria · ESHospital Universitario de Gran Canaria Doctor Negrín · ESHospital General Universitario Gregorio Marañón · ES

Funding

Fundación DISA 2019Fundación Española del Dolor FED BF1-19-03Instituto de Salud Carlos III PI 19/00458
6 · The paper itself

Abstract

(1) Background: Cancer is one of the leading causes of mortality worldwide. Radiotherapy and chemotherapy attempt to kill tumor cells by different mechanisms mediated by an intracellular increase of free radicals. However, free radicals can also increase in healthy cells and lead to oxidative stress, resulting in further damage to healthy tissues. Approaches to prevent or treat many of these side effects are limited. Ozone therapy can induce a controlled oxidative stress able to stimulate an adaptive antioxidant response in healthy tissue. This review describes the studies using ozone therapy to prevent and/or treat chemotherapy-induced toxicity, and how its effect is linked to a modification of free radicals and antioxidants. (2) Methods: This review encompasses a total of 13 peer-reviewed original articles (most of them with assessment of oxidative stress parameters) and some related works. It is mainly focused on four drugs: Cisplatin, Methotrexate, Doxorubicin, and Bleomycin. (3) Results: In experimental models and the few existing clinical studies, modulation of free radicals and antioxidants by ozone therapy was associated with decreased chemotherapy-induced toxicity. (4) Conclusions: The potential role of ozone therapy in the management of chemotherapy-induced toxicity merits further research. Randomized controlled trials are ongoing.

Indexed as

antioxidantsbleomycincancer treatmentchemotherapy-induced toxicitycisplatindoxorubicinfree radicalsmethotrexateoxidative stressozone therapy

Identifiers

PMID31779159
PMCPMC6943601
OpenAlexW2990230900

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

and 1 more above

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.