Clinical trial Recruiting at 1 site Interventional Ages 18 to 75

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.

More Inflammation Biomarkers trials

Quick facts

Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment48 (estimated)
SponsorUniversidade Federal Fluminense
Academic / other
Locations1 site (Niterói, Rio de Janeiro)
StatusRecruiting
StartedOctober 15, 2025
Main results expectedDecember 10, 2026
Study endsDecember 10, 2027
Registry record updatedMay 19, 2026
Trial IDNCT07596966 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.