Effectiveness of Novel Approaches to Radical Cure With Tafenoquine and Primaquine (EFFORT)

October 3, 2024 updated by: Menzies School of Health Research

Effectiveness of Novel Approaches to Radical Cure With Tafenoquine and Primaquine - a Randomized Controlled Trial in P. Vivax Patients

Health care facility based, randomized, controlled, open label, superiority trial with 3 arms

Study Overview

Status

Status

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

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

  • To assess the effectiveness of a short-course of high dose primaquine (total dose 7mg/kg given unsupervised over 7 days) compared to the current standard low dose primaquine regimen (total dose 3.5mg/kg given unsupervised over 14 days).
  • To assess the effectiveness of tafenoquine (single dose of 300mg) compared to the short-course high dose primaquine regimen.
  • To assess the safety of tafenoquine compared to the high and low dose primaquine regimens.
  • To assess the cost-effectiveness and feasibility of high dose primaquine and tafenoquine compared to the current low dose primaquine regimen

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 (Actual)

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.
960

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.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Cambodia
      • Kampong Speu, Cambodia
        • Chambak Health Center
      • Stung Treng, Cambodia
        • Siem Pang Health Centre
    • Pursat Province
      • Pursat, Pursat Province, Cambodia
        • Kravanh District Hospital
  • Ethiopia
      • Arba Minch, Ethiopia
        • Arba Minch General Hospital
  • Indonesia
    • Sumatera
      • Labuhanbatu, Sumatera, Indonesia
        • Tanjung Leidong Health Center
  • Pakistan
      • Karachi, Pakistan
        • Aga Khan Hospital Karachi

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

14 years to 96 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria

  • P. vivax peripheral parasitaemia (mono-infection) as determined by microscopy
  • G6PD normal status (G6PD activity ≥ 70% of the adjusted male median as determined by the Biosensor™ (SD Biosensor, ROK))
  • Fever (temperature ≥37.5⁰C) or history of fever in the preceding 48 hours
  • Age ≥18 years
  • Written informed consent
  • Living in the study area and willing to be followed for six months

Exclusion Criteria:

  • Danger signs or symptoms of severe malaria
  • Anaemia (defined as Hb <8g/dl)
  • Pregnant or lactating females
  • Known hypersensitivity to any of the study drugs
  • Regular use of drugs with haemolytic potential

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: Randomized
  • Interventional Model: Parallel 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.
No Intervention: Control
Patients are treated with schizontocidal treatment plus low dose PQ (total dose 3.5mg/kg) unsupervised over 14 days (PQ14)
Experimental: PQ Intervention
Patients are treated with schizontocidal treatment plus high dose PQ (total dose 7 mg/kg) unsupervised over 7 days (PQ7)
Drug: Primaquine
patients are treated with schizontocidal treatment plus high dose PQ (total dose 7 mg/kg) unsupervised over 7 days (PQ7)
Other Names:
  • Primaquine 7 days
Experimental: TQ Intervention
Patients are treated with schizontocidal treatment plus a single dose of Tafenoquine (TQ)
Drug: Tafenoquine
patients are treated with schizontocidal treatment plus a single dose of Tafenoquine (TQ).

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
Measure Description
Time Frame
Incidence risk any P vivax PQ7 / PQ14
Time Frame: 6 months
The incidence risk (time to first event) of any P. vivax parasitaemia during the 6-month follow up period as determined by microscopy compared between the PQ7 arm and the control arm (PQ14).
6 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Incidence risk symptomatic P vivax TQ / PQ14
Time Frame: 6 months
The incidence risk (time to first event) of symptomatic P. vivax parasitaemia during the 6 months follow up period as determined by microscopy compared between TQ and the control arm (PQ14).
6 months
Incidence risk any P vivax PQ7 / TQ
Time Frame: 6 months
• The incidence risk (time to first event) of any P. vivax parasitaemia during the 6 months follow up period as determined by microscopy compared between PQ7 and TQ arms
6 months
Incidence risk any P vivax PQ14 / TQ
Time Frame: 6 months
The incidence risk (time to first event) of any P. vivax parasitaemia during the 6 months follow up period as determined by microscopy compared between PQ14 and TQ arms
6 months
Incidence risk any P vivax PQ7 / TQ
Time Frame: 6 months
The incidence risk (time to first event) of any P. vivax parasitaemia during the 6 months follow up period as determined by microscopy compared between PQ7 and TQ arms
6 months
Incidence risk any P vivax PQ7 / PQ14
Time Frame: 6 months
The incidence risk (time to first event) of symptomatic P. vivax parasitaemia during the 6-month follow up period as determined by microscopy compared between the PQ7 arm and the control arm (PQ14).
6 months

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.
Menzies School of Health Research

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Aga Khan University
University of Melbourne
Universitas Sumatera Utara
Ethiopian Public Health Institute
Mahidol Oxford Tropical Medicine Research Unit
Arba Minch University
National Centre for Parasitology, Entomology and Malaria Control, Cambodia

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Kamala Thriemer, MD, MPH, PhD, Menzies School of Health Research

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.
April 25, 2021

Primary Completion (Actual)

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.
September 30, 2024

Study Completion (Actual)

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.
September 30, 2024

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).
May 28, 2020

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.
May 28, 2020

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.
June 2, 2020

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.
October 8, 2024

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.
October 3, 2024

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.
October 1, 2024

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.
  • EFFORT

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Study Protocol and Statistical Analysis Plan will be made available to others. Data collected for the study, including individual patient data and the final trial dataset are reserved for the chief investigator and co-investigators of the trial. The trial will be reported in accordance with the Consolidated Standards of Reporting Trials (CONSORT) guidelines. Trial results will be published in peer-reviewed open access journals and disseminated to trial stakeholders, including participants, as per ethical guidelines.

IPD Sharing Access Criteria

The data are available for access via the WorldWide Antimalarial Resistance Network (WWARN.org). Requests for access will be reviewed by a Data Access Committee to ensure that use of data protects the interests of the participants and researchers according to the terms of ethics approval and principles of equitable data sharing. Requests can be submitted by email to malariaDAC@iddo.org via the Data Access Form available at WWARN.org/accessing-data. The WWARN is registered with the Registry of Research Data Repositories (re3data.org).

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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