Prospective Analysis of Self Medication With Phytotherapy in Nephropatic Patients. (PASSION)

September 14, 2026 updated by: Centre Hospitalier Universitaire de la Réunion

We propose the following hypotheses:

  • The use of herbal medicine is common among patients with chronic kidney disease in Réunion island.
  • This use could influence the progression of kidney disease in these patients. To assess the primary inclusion criterion, patients will be easily identified by nephrologists through existing follow-up. The questionnaires will be administered after this early identification by the investigators at each center.

The primary evaluation criterion is straightforward: it aims to establish an overview of the use of herbal medicine in our patient population. This information is currently unavailable and remains crucial for measuring the extent of the issue. Our secondary criteria will involve more in-depth analysis of this use and an attempt to correlate the use of certain herbs with the rate of progression of kidney disease at one year.

We targeted patients with moderate to end-stage chronic kidney disease (KDIGO classification 3 to 5), which are the stages typically included in kidney disease studies. Furthermore, these patients are the most likely to experience a greater annual progression of their kidney disease, and the effect of herbs on this progression could be investigated. Transplant patients were not included because they are more aware of the risks of not using herbal medicine due to their use of immunosuppressants.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The use of traditional medicine is widespread globally. In Africa, the prevalence is estimated at 60%, while usage in developing countries may reach 80%. Phytotherapy is defined as the treatment or prevention of diseases using plants; it plays a role in both traditional medicine and the current "modern" market. Chronic kidney disease (CKD) is one of the most common chronic conditions worldwide, with over 800 million prevalent cases. Its prevalence is steadily rising, affecting high-income and low-to-middle-income countries alike. Patients with kidney disease may be heavily exposed to phytotherapy.

Phytotherapy has long been used to treat kidney disease, and the kidneys are a primary route for the elimination of plant-derived compounds and their metabolites. While some plants appear to possess nephroprotective properties, others may cause acute kidney injury, chronic kidney disease, kidney stones, Fanconi syndrome, or urothelial cancers. Patients with chronic kidney disease may be at particular risk of nephrotoxicity due to reduced nephron mass and polypharmacy.

Currently, there is very little data regarding the use of phytotherapy among patients with chronic kidney disease, or concerning its protective or toxic effects.

In Réunion, there is a strong culture of phytotherapy-known as *z'herbages* in Réunionese Creole. Réunion is also the French department with the highest prevalence of end-stage renal disease. Patients with chronic kidney disease in Réunion may frequently use phytotherapies-whether for renal or systemic purposes-the consequences of which remain unknown. There is therefore a clear need to map these practices in order to identify candidate plants with potential nephroprotective or nephrotoxic effects.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
400

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

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Study Locations

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Individual:

  • Adult
  • Resident of Réunion Island and planning to remain on the island for the year following enrollment
  • Chronic Kidney Disease Stage 3, 4, or 5, not on dialysis
  • Under the care of a nephrologist
  • Able to complete a questionnaire
  • Registered with social security

Exclusion Criteria:

Individual:

  • Kidney transplant recipient
  • Adult under guardianship or legal protection
  • Pregnant or breastfeeding women, or women planning a pregnancy during the enrollment period

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: All patient with kidney chronic disease
Other: series of questions which can change patient care
Series of question are about self medication with plants

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Proportion of patients with stage 3 to 5 CKD using traditional herbal medicine at baseline
Time Frame: baseline
baseline

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Centre Hospitalier Universitaire de la Réunion

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 28, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 28, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 28, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 26, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 26, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 3, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 16, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 14, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2025/RUN/0033

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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.

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