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Not yet recruitingNCT07035522Updated Jun 25, 2025

Ozone Therapy for Women With Endometriosis

An interventional study of Ozone therapy in Endometriosis, Ozone Therapy and Thermography, sponsored by Universidade Federal do Paraná. Not yet recruiting at 1 site in Brazil. Open to female participants aged 25 Years to 45 Years. Per ClinicalTrials.gov, last updated 2025-06-25.

Sponsored by Universidade Federal do Paraná · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Not applicable
Ages
25 Years to 45 Years
Sex
Female
01

Study summary

To evaluate the action of ozone therapy as an adjuvant treatment in patients with endometriosis. Secondary Objective: To evaluate the efficacy of ozone therapy for pelvic analgesia in women with endometriosis; To compare the imaging diagnostic techniques of transvaginal ultrasound with infrared thermography in the pre-treatment (before), fourth, seventh and post-treatment (10th session) periods; To evaluate the application of the consolidated questionnaire (EHP-30) in the changes in the quality of life of the participants immediately after the intervention.

Read the detailed description

Endometriosis is a chronic gynecological condition characterized by the abnormal presence of endometrial glands and stroma outside the uterus, accompanied by chronic inflammation. It is found mainly in girls and women of reproductive age, and according to data from the World Health Organization, it occurs in approximately 10% of women of reproductive age (190 million) worldwide. Effective management of endometriosis requires rapid diagnosis to allow early multidisciplinary intervention that aligns with the patient's needs and priorities. The etiopathogenesis is not yet well established, but evidence indicates that the combination of genetic, hormonal and immunological factors may contribute to the formation and development of ectopic foci of endometriosis. The clinical picture is quite variable. It may be asymptomatic, refer only to infertility or have symptoms such as severe dysmenorrhea, deep dyspareunia, chronic pelvic pain, ovulatory pain, urinary or perimenstrual evacuation symptoms and chronic fatigue. Uncertainty and delays in diagnosis contribute to disturbances in the emotional system, impacting on quality of life. The objective of this research project is to evaluate the effectiveness of ozone therapy and the assessment by means of diagnostic imaging examinations using transvaginal ultrasound and infrared thermography, before, during and after the intervention, aiming at a comparative investigation of possible evidence of the evolution of patients diagnosed with endometriosis who did not respond to conventional treatments, as well as to apply a consolidated questionnaire that assesses changes in the quality of life of the participants after the intervention. This study is part of an experimental research project and will be carried out in a private clinic, Clínica Fernanda Ferraz - Fisioterapia Integrativa LTDA. The clinic is located at Travessa João Turin, 37, room 603 - Água Verde, Curitiba-PR. The target population of this study will be composed of women between the ages of 25 and 45, with a diagnosis based on a report of endometriosis (all stages will be treated). A convenience sample will be used, recruited through advertisements on social networks. A total of 40 participants will be selected for the study, divided equally into two groups: Group A (ozone therapy) and Group B (control group - conventional clinical treatment). This study will contribute to a deeper understanding of the effects of ozone therapy on endometriosis. It is expected that a statistically significant analysis will be observed that will highlight important differences in imaging in transvaginal ultrasound and thermographic examinations, as well as in symptoms and quality of life. Based on the literature review and the biochemical properties of both techniques (ozone therapy and clinical approach), it is likely that one of the approaches will demonstrate a statistically superior advantage over the other. In addition, the research aims to investigate whether the quality of life of the participants will improve, and in some cases, with potential positive results on infertility.

02

Conditions studied

  • Endometriosis
  • Ozone Therapy
  • Thermography

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Keywords

  • ozone
  • ozone therapy
  • ultrasound
  • thermography
03

Who can participate

Ages eligible
25 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Women with a clinical diagnosis of endometriosis (ultrasonography / transvaginal exam)
  • 25-45 years old

Exclusion criteria

Exclusion Criteria:

  • Pregnancy
  • G6PD positive
  • Addicted
  • HIV and hepatitis positive
  • Cancer
  • Anticoagulant sensitive
  • Endometrial surgery history
04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
40 participants (estimated)

Study arms

  • Experimental
    Ozone therapy on endometriosis

    The participants will undergo anamnesis, including clinical and epidemiological aspects for this research, including the capture of thermographic images. The participants will have previously undergone the transvaginal ultrasound examination; These participants will undergo 10 sessions, within the pre-established protocol with ozone. The selected participants will be allocated into two groups: Group A (ozone therapy) and Group B (control group - conventional treatment). Each group will consist of 20 participants. - Group A (Ozone Therapy): The participants in this group will undergo ozone therapy sessions, according to the established protocol, and will receive treatment in the pelvic cavity with an initial injection of ozonated water, followed by an injection of ozone gas. The application of ozone will be done according to standardized and referenced techniques. - Group B (Clinical treatment): The participants in this group will be monitored to compare the results.

    Other: Ozone therapy

Interventions

  • OtherOzone therapy

    The study also aims to analyze the efficacy of ozone therapy in participants affected by endometriosis, enriching the knowledge base in the field of women's health/gynecology. The expected results will contribute to improving current therapeutic approaches, informing clinical decisions and encouraging future research. Understanding the technique and its clinical applicability will help health professionals to offer personalized and effective treatments. In addition, the insights obtained can direct new investigations, such as the optimization of protocols or the exploration of innovative therapeutic combinations for even more satisfactory results. Based on the literature review and the biochemical properties of both techniques (ozone therapy and clinical approach), it may be possible that one of the approaches demonstrates a statistically superior advantage over the other. In addition, the research aims to investigate whether the quality of life of these participants will improve and i

    Also known as: thermography, ultrasound

05

What researchers measure

Primary outcomes

  1. EHP-30 - Endometriosis Health Profile Questionnaire

    The EHP-30 (Endometriosis Health Profile-30) is a disease-specific, patient-reported outcome measure designed to assess the health-related quality of life (HRQoL) in individuals with endometriosis on various aspects, including physical, emotional, and social well-being.

    Time frame: EHP-30 will be applied at pre (baseline), through study completion, an average of 2 months.

Secondary outcomes

  1. Thermographic images

    Thermography, a non-invasive imaging technique that detects infrared radiation to map skin surface temperature, will be applied as a tool to assess the physiological response to ozone therapy in endometriosis. Ozone therapy, known for its anti-inflammatory and analgesic properties, may influence local blood flow and immune activity. Thermographic imaging allows visualization of these changes by capturing temperature variations in the abdominal or pelvic regions before (baseline), during (4 and 7th session) and after treatment (10th session). In endometriosis, affected areas often exhibit thermal asymmetry or increased heat due to inflammation. Post-ozone therapy, thermography can reveal reductions in localized hyperthermia, suggesting decreased inflammation and improved circulation. This method provides a visual, quantifiable means to monitor treatment response over time, offering a complementary assessment tool alongside symptom tracking.

    Time frame: Infra-red images will be captured at pre (baseline), through study completion, an average of 2 months.

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Study locations

1 site
  • Clínica Fernanda Ferraz - Fisioterapia Integrativa LTDA
    Curitiba, Paraná 80240-100, Brazil
07

References and documents

Publications

  • Pires MV, de Lima CJ, Carvalho HC, Moreira LH, Fernandes AB. Effectiveness of intravesical ozone in interstitial cystitis by the O'Leary-Sant symptom index. Int Urogynecol J. 2023 Jul;34(7):1437-1446. doi: 10.1007/s00192-022-05383-3. Epub 2022 Oct 15. PubMed 36242631 ↗
  • Wei A, Feng H, Jia XM, Tang H, Liao YY, Li BR. Ozone therapy ameliorates inflammation and endometrial injury in rats with pelvic inflammatory disease. Biomed Pharmacother. 2018 Nov;107:1418-1425. doi: 10.1016/j.biopha.2018.07.137. Epub 2018 Sep 1. PubMed 30257358 ↗
  • Merhi Z, Garg B, Moseley-LaRue R, Moseley AR, Smith AH, Zhang J. Ozone therapy: a potential therapeutic adjunct for improving female reproductive health. Med Gas Res. 2019 Apr-Jun;9(2):101-105. doi: 10.4103/2045-9912.260652. PubMed 31249259 ↗
  • Gupta S, Goldberg JM, Aziz N, Goldberg E, Krajcir N, Agarwal A. Pathogenic mechanisms in endometriosis-associated infertility. Fertil Steril. 2008 Aug;90(2):247-57. doi: 10.1016/j.fertnstert.2008.02.093. PubMed 18672121 ↗
  • Nisolle M, Donnez J. Peritoneal endometriosis, ovarian endometriosis, and adenomyotic nodules of the rectovaginal septum are three different entities. Fertil Steril. 1997 Oct;68(4):585-96. doi: 10.1016/s0015-0282(97)00191-x. PubMed 9341595 ↗
  • Wright CI, Kroner CI, Draijer R. Non-invasive methods and stimuli for evaluating the skin's microcirculation. J Pharmacol Toxicol Methods. 2006 Jul-Aug;54(1):1-25. doi: 10.1016/j.vascn.2005.09.004. Epub 2005 Oct 25. PubMed 16256378 ↗
  • Horne AW, Saunders PTK. SnapShot: Endometriosis. Cell. 2019 Dec 12;179(7):1677-1677.e1. doi: 10.1016/j.cell.2019.11.033. Epub 2019 Dec 12. PubMed 31951524 ↗
  • Ahn SH, Singh V, Tayade C. Biomarkers in endometriosis: challenges and opportunities. Fertil Steril. 2017 Mar;107(3):523-532. doi: 10.1016/j.fertnstert.2017.01.009. Epub 2017 Feb 8. PubMed 28189296 ↗
  • Smolarz B, Szyllo K, Romanowicz H. Endometriosis: Epidemiology, Classification, Pathogenesis, Treatment and Genetics (Review of Literature). Int J Mol Sci. 2021 Sep 29;22(19):10554. doi: 10.3390/ijms221910554. PubMed 34638893 ↗
  • Saunders PTK, Horne AW. Endometriosis: Etiology, pathobiology, and therapeutic prospects. Cell. 2021 May 27;184(11):2807-2824. doi: 10.1016/j.cell.2021.04.041. PubMed 34048704 ↗

Individual participant data

Plan to share: No — Ethical or Consent Restrictions: Participants may not have given explicit consent for their data to be shared beyond the original study. Legal or Institutional Policies: Data sharing may be restricted by Brazillian laws.

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Registry details

Key details

Study ID
NCT07035522
Lead sponsor
Universidade Federal do Paraná
Collaborators
Philozon Geradores de Ozonio LTDA
Responsible party
Henrique Cunha Carvalho (Evaluation of the effects of ozone therapy on endometriosis, Universidade Federal do Paraná) — Principal investigator
First posted
Jun 25, 2025
Start date
Jun 18, 2025 (estimated)
Primary completion
Dec 20, 2025 (estimated)
Completion
Dec 20, 2025 (estimated)
Last update
Jun 25, 2025

Study contacts

Fernanda Luiza Ferraz, Physiotherapist / Therapist
Contact
fernandaferraz88@gmail.com
55 41 99971-1737
Henrique Cunha Carvalho, PhD. Dr.
study chair · UTFPR

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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