Royal jelly and propolis for hypertension: does it lower inflammation and oxidative stress?
Official title: EFFECTS OF PROPOLIS AND ROYAL JELLY SUPPLEMENTATION ON INFLAMMATORY AND OXIDATIVE STRESS MARKERS IN PATIENTS WITH SYSTEMIC ARTERIAL HYPERTENSION
Run by Universidade Federal Fluminense · NCT07596966 · Data updated 2026-11-12
This study tests whether royal jelly and propolis can reduce inflammation and oxidative stress in adults with high blood pressure.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 48 (estimated) |
| Sponsor | Universidade Federal Fluminense Academic / other |
| Locations | 1 site (Niterói, Rio de Janeiro) |
| Status | Recruiting |
| Started | October 15, 2025 |
| Main results expected | December 10, 2026 |
| Study ends | December 10, 2027 |
| Registry record updated | May 19, 2026 |
| Trial ID | NCT07596966 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with stage 1–2 hypertension on stable antihypertensive therapy for at least six months, without recent medication changes.
✕Probably not a fit
Patients with autoimmune disease, infectious disease, diabetes, chronic kidney or liver disease, cancer, AIDS, or those taking antioxidant supplements or habitual royal jelly/propolis use may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional, double-blind randomized trial will compare royal jelly plus propolis versus placebo over two months in adults with stage 1–2 hypertension. The study focuses on inflammatory and oxidative stress markers to see if the supplements offer additional benefits beyond standard hypertension care. Eligible participants have had stable antihypertensive treatment for at least six months and no recent medication changes. The research is conducted at Denise Mafra in Niterói, Brazil, led by Universidade Federal Fluminense. Safety and adherence will be monitored throughout the trial.
Why it matters
Potential benefit: If successful, participants may experience reductions in inflammatory and oxidative stress markers beyond their usual hypertension management.
How similar studies have gone: Prior preclinical data are promising, but clinical evidence in humans remains limited and this study aims to provide initial human data.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Diagnosis of stage 1 and 2 hypertension * Regular treatment for more than 6 months * There have been no changes in medication doses over the last three months. Exclusion Criteria: * Autoimmune and infectious diseases, diabetes * Chronic kidney disease, liver disease, cancer and AIDS * Pregnant women * Use of catabolic drugs or antibiotics * Use of antioxidant vitamin supplements, prebiotics, probiotics, symbiotic * Habitual intake of royal jelly and propolis
Where it's running
-
Denise Mafra
Niterói, Rio de Janeiro, Brazil Recruiting
Study contacts
- Study coordinator: Denise Mafra, PhD
- Email: dmafra30@gmail.com
- Phone: +5521985683003
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.