Red Propolis Supplementation as a Strategy in Chronic Kidney Disease

May 12, 2026 updated by: Universidade Federal Fluminense

Red Propolis as a Strategy to Modulate Inflammation and Oxidative Stress in Patients With Chronic Kidney Disease

The objective of this study is to evaluate the effects of red propolis on inflammation and oxidative stress in patients with chronic kidney disease on conservative management.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Chronic kidney disease (CKD) is associated with chronic systemic inflammation and oxidative stress, which contribute to disease progression and adverse outcomes. Red propolis is a natural substance rich in bioactive compounds with potential anti-inflammatory and antioxidant effects. Clinical evidence on its use in CKD patients is limited, and no studies have evaluated its impact on gene expression related to inflammation and oxidative stress. This randomized, double-blind, placebo-controlled trial will assess the effects of alcoholic extract of red propolis (200 mg/day for 8 weeks) on inflammatory and oxidative stress markers in patients with CKD stages 3-5 under conservative management. Blood samples will be collected at baseline and after intervention to evaluate routine biochemical parameters, inflammatory and oxidative stress markers, and gene expression. Nutritional status and dietary intake will also be assessed.

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Brazil
    • Rio de Janeiro
      • Rio de Janeiro, Rio de Janeiro, Brazil, 22260050
        • Recruiting
        • Denise Mafra

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • patients with CKD stages 3-5 under conservative management

Exclusion Criteria:

  • pregnant,
  • lactating,
  • smoker
  • patients using antibiotics and antioxidant supplements in the last three months
  • patients with autoimmune and infectious diseases,
  • patients with cancer, liver disease, and AIDS

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Red Propolis Group
Patients with chronic kidney disease will receive capsules containing 200mg of red propolis / day for two months.
Dietary supplement: Red Propolis
Participants will receive 200mg of red propolis capsules per day for two months.
Placebo Comparator: Placebo Group
Patients with chronic kidney disease will receive capsules containing 200mg of placebo/ day for two months.
Other: Placebo Control
Participants will receive 200mg of placebo capsules per day for two months.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in inflammatory biomarkers
Time Frame: 8 weeks
Changes in the IL-6 and TNF-α
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Universidade Federal Fluminense

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 30, 2025

Primary Completion (Actual)

November 30, 2025

Study Completion (Estimated)

August 31, 2027

Study Registration Dates

First Submitted

May 12, 2026

First Submitted That Met QC Criteria

May 12, 2026

First Posted (Actual)

May 19, 2026

Study Record Updates

Last Update Posted (Actual)

May 19, 2026

Last Update Submitted That Met QC Criteria

May 12, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DeniseMafra23

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe