Phenotyping and Genotyping of Duffy Antigen (DARC)

November 7, 2023 updated by: University Hospital, Strasbourg, France
Malaria remains the world's leading parasitic endemic. Almost half of the world's population lives in endemic areas. Many at-risk people in African countries remain without access to malaria control. Malaria kills approximately 400,000 people each year, most of whom are children under the age of 5 in Africa. Since 2005, an increasing number of Plasmodium vivax infections have been observed in Duffy-negative populations in South America and Africa, calling into question the essential role of the PvDBP-DARC interaction. The objective of the investigators is therefore to study and understand the invasion pathways used by Plasmodium vivax in Duffy-negative subjects.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

30

Contacts and Locations

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

Study Locations

      • Strasbourg, France, 67091
        • Service de Laboratoire de Parasitologie et Mycologie Médicale-PTM - CHU de Strasbourg - France

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

- Major subjects with malaria and willing to have their blood samples analyzed for this research

Description

Inclusion Criteria:

  • Major subjects
  • with malaria and willing to have their blood samples analyzed for this research

Exclusion Criteria:

  • Subjects refusing to participate in the study

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Number of blood samples tested (phenotype and genotype).
Time Frame: 2 months later
2 months later

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Didier MENARD, MD, PhD, Service Laboratoire de Parasitologie et Mycologie Médicale-PTM - CHU de Strasbourg - France

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)

March 11, 2022

Primary Completion (Actual)

July 11, 2023

Study Completion (Actual)

September 11, 2023

Study Registration Dates

First Submitted

August 30, 2022

First Submitted That Met QC Criteria

September 1, 2022

First Posted (Actual)

September 2, 2022

Study Record Updates

Last Update Posted (Estimated)

November 8, 2023

Last Update Submitted That Met QC Criteria

November 7, 2023

Last Verified

November 1, 2023

More Information

Terms related to this study

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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