Actively Recruiting
Ozone Treatment in Paresthesia (Numbness, Tingling) Secondary to Chemotherapy-induced Peripheral Neuropathy
Led by Bernardino Clavo, MD, PhD · Updated on 2025-02-11
42
Participants Needed
1
Research Sites
268 weeks
Total Duration
On this page
Sponsors
B
Bernardino Clavo, MD, PhD
Lead Sponsor
C
Council of Gran Canaria
Collaborating Sponsor
AI-Summary
What this Trial Is About
The goal of this phase II/III randomized clinical trial is to evaluate the effect of adding rectal ozone therapy to the usual management of patients with paresthesia (numbness and/or tingling) due to chemotherapy-induced peripheral neuropathy (CIPN). Ozone treatment consists of the rectal insufflation of 180 - 300 milliliters of an ozone/oxygen gas mixture. The main questions to answer are: 1. Can ozone therapy improve patients' self-perceived level of numbness and tingling? 2. Can ozone therapy improve patients' self-perceived health-related quality of life (HRQoL)? In 42 patients with chronic numbness and tingling secondary to chemotherapy, the researchers will compare: * the addition of rectal ozone insufflations * versus the addition of rectal oxygen insufflations (placebo). Participants will receive 40 rectal gas (ozone versus oxygen) insufflations in 16 weeks and will continue other symptomatic or cancer treatments prescribed by their oncologists. Before treatment, after treatment, and 12 weeks after treatment, they will be evaluated: * Several questionnaires about neuropathy, quality of life, and anxiety and depression. * Biochemical parameters of oxidative stress and inflammation * Hyperspectral images of hands and feet * Toxicity of procedure.
CONDITIONS
Official Title
Ozone Treatment in Paresthesia (Numbness, Tingling) Secondary to Chemotherapy-induced Peripheral Neuropathy
Who Can Participate
Eligibility Criteria
You may qualify if you...
- 1. Adults > = 18 years old.
- 2. Previous treatment with any chemotherapy because of any tumor.
- 3. Clinical diagnosis of paresthesia (numbness, tingling) secondary to CIPN, with toxicity Grade > = 2 (according to the Common Toxicity Criteria for Adverse Events (CTCAE) from the National Cancer Institute of EEUU, v.5.0) for > = 3 months.
- 4. Without neurotoxic chemotherapy > = 3 months.
- 5. Cancer disease is stable or in remission.
- 6. Life expectancy > = 6 months.
- 7. 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 14 days before the first ozone therapy session up to 14 days after the last one.
- 8. To sign and date the study-specific informed consent
You will not qualify if you...
- 1. Age < 18 years.
- 2. A woman who is lactating, pregnant, suspected of being pregnant, or a woman of childbearing potential who does not use adequate contraceptive methods.
- 3. Suspected symptoms are due to diabetic or compressive neuropathy.
- 4. Severe psychiatric disorders.
- 5. Inability to complete the quality of life questionnaires.
- 6. Elevation above 5 times the maximum limit of normal creatinine.
- 7. Patient who is hemodynamic or clinically unstable or who requires urgent or short-term interventional measures.
- 8. Neoplasia in progression requiring recent initiation of systemic treatment or maintenance with neurotoxic chemotherapy.
- 9. Life expectancy (for any reason) < 6 months.
- 10. Known allergy to ozone, known glucose 6 phosphate dehydrogenase (G6PD) deficiency, or hemochromatosis.
- 11. Contraindications or impossibility for rectal ozone treatment or to attend regularly to the treatment.
- 12. Not meeting each and every one of the inclusion criteria
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Trial Site Locations
Total: 1 location
1
Dr. Negrín University Hospital
Las Palmas, Las Palmas, Spain, 35019
Actively Recruiting
Research Team
B
Bernardino Clavo, MD, PhD
CONTACT
F
Francisco Rodríguez-Esparragón, BSc, PhD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
TRIPLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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