SP Resistance and Falciparum Malaria Transmission

January 28, 2019 updated by: National Institute of Allergy and Infectious Diseases (NIAID)

SP Resistance Markers and Falciparum Malaria Transmission

The purpose of this study is to study resistance to current malaria treatments and affordable alternatives for uncomplicated malaria. Resistance occurs in areas where these treatments are used frequently. This study may help prevent future resistance. About 150 residents in Buenaventura, Colombia will participate. They will have uncomplicated malaria and they will be followed for 28 days after treatment. Physical exams and blood draws are included in study visits.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

Drug-resistant Plasmodium falciparum is a major threat to global public health and new strategies are needed to deter spread of resistance to available and forthcoming antimalarial drugs. This study seeks to contribute to understanding the molecular basis of spread of drug resistance in a setting with low level of sulfadoxine-pyrimethamine (SP) treatment failure. The objectives of this study are to compare the prevalence of dihydrofolate reductase (DHFR) and dihydropteroate synthase (DHPS) point mutations associated with SP resistance before and after SP treatment of uncomplicated Plasmodium falciparum malaria episodes and to measure parasite infectivity to Anopheles mosquitoes of post-treatment gametocytes with and without DHFR and DHPR mutations. Patients with uncomplicated falciparum malaria will receive a standard SP regimen and will be closely followed for 28 days. This study will add new knowledge of the understanding of ways in which resistance is spread and is expected to provide a sound basis for the future clinical evaluation of antimalarial drug combinations designed to prevent transmission of drug-resistance malaria.

Study Type

Interventional

Phase

  • Phase 3

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

  • Colombia
      • Cali, Colombia
        • Malaria Vaccine and Drug Development Center
      • Cali, Colombia
        • Universidad del Valle Sede San Fernando

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

5 years to 99 years (ADULT, OLDER_ADULT, CHILD)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

Age more than 5 years Positive blood smear for falciparum malaria Informed consent from participant or parent Intention to remain in the study area for at least 4 weeks from the time of enrollment

Exclusion Criteria:

Mixed Plasmodium infection Parasitemia > 10% Hematocrit < 15% Respiratory distress Spontaneous bleeding (from gums, nose, gastrointestinal tract, etc.) Recent seizures or coma Prostration or weakness, so that the patient cannot sit or walk, with no obvious neurological explanation Inability to drink Persistent vomiting History of allergy or adverse reaction to sulfadoxine-pyrimethamine (SP) or sulfa drugs Known pregnancy

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: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Collaborators and Investigators

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

Sponsor

National Institute of Allergy and Infectious Diseases (NIAID)

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

Primary Completion (ANTICIPATED)

December 1, 2006

Study Completion (ANTICIPATED)

December 1, 2006

Study Registration Dates

First Submitted

March 3, 2006

First Submitted That Met QC Criteria

March 3, 2006

First Posted (ESTIMATE)

March 6, 2006

Study Record Updates

Last Update Posted (ACTUAL)

January 30, 2019

Last Update Submitted That Met QC Criteria

January 28, 2019

Last Verified

January 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 03-246

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