Incidence of Relapse and Post-Kala-Azar Dermal Leishmaniasis in South Sudan (PKDL)

April 22, 2025 updated by: Epicentre

A Prospective Cohort Study on the Incidence of Relapse and Post-Kala-Azar Dermal Leishmaniasis After Treatment for Primary Visceral Leishmaniasis in South Sudan

This study aims to describe the burden of Post-Kala-Azar Dermal Leishmaniasis and visceral leishmaniasis relapse in a cohort of patients discharged after successful treatment of primary visceral leishmaniasis.

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.

Detailed Description

This prospective, observational cohort study aims to describe the burden of Post-Kala-Azar Dermal Leishmaniasis and visceral leishmaniasis relapse in a cohort of patients discharged after successful treatment of primary visceral leishmaniasis from a hospital in Lankien, South Sudan.

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.
Observational

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.
52

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 Contact Backup

Study Locations

  • South Sudan
    • Jonglei
      • Lankien, Jonglei, South Sudan
        • Lankien Hospital

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Successfully treated and discharged primary cases of visceral leishmaniasis from the Médecins Sans Frontières-Operational Center Amsterdam (MSF-OCA)-run hospital in Jonglei State, South Sudan

Description

Inclusion Criteria:

  • Primary visceral leishmaniasis patients who had a confirmed (serological and/or parasitological) diagnosis at admission, and who were discharged after successful treatment
  • Availability for follow up visits
  • Provision of informed consent, and in the case of minors 12 to 17 years of age, assent as well

Exclusion Criteria:

  • Unavailability for follow-up visits due to distance, inaccessibility, or refusal to participate
  • Diagnosis of prior primary visceral leishmaniasis done only on clinical basis

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

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 of post-kala-azar-dermal leishmaniasis (PKDL)
Time Frame: 12 months
To determine the incidence of PDKL after initial successful treatment of primary visceral leishmaniasis (VL) over a period of 12 months
12 months
Incidence of VL relapse
Time Frame: 12 months
To determine the incidence of VL relapse after initial successful treatment of primary VL over a period of 12 months
12 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
Time of onset of visceral leishmaniasis (VL) relapse or post-kala-azar-dermal leishmaniasis (PKDL)
Time Frame: 12 months
To determine the time of onset of VL relapse or PKDL at follow-up 1, 3, 6, 9, and 12 months after initial successful treatment of primary VL
12 months
Characterize PKDL lesions
Time Frame: 12 months
To characterize (e.g., grade, distribution) PKDL lesions
12 months
Risk factors for the development of VL relapse or PKDL
Time Frame: 12 months
To assess the risk factors for the development of VL relapse or PKDL after initial successful treatment of primary VL
12 months
Rate and time period to self-healing of PKDL
Time Frame: 12 months
To determine the rate and time period to self-healing of PKDL
12 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.
Epicentre

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.
Drugs for Neglected Diseases
European and Developing Countries Clinical Trials Partnership (EDCTP)
Medecins Sans Frontieres, Netherlands

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: Rebecca M Coulborn, MPH, Epicentre
  • Principal Investigator: Margriet den Boer, MD, Medecins Sans Frontieres, Netherlands

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.
May 31, 2022

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.
April 11, 2025

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.
April 11, 2025

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).
July 4, 2022

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.
July 4, 2022

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.
July 8, 2022

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.
April 24, 2025

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.
April 22, 2025

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.
April 1, 2025

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.
  • PKDL/2184

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

A long-standing individual participant data (IPD) sharing plan already exists between Epicentre and Médecins Sans Frontières.

IPD Sharing Time Frame

The data will be shared as they become available, for the duration of the project, estimated at 3 years.

IPD Sharing Access Criteria

Existing co-investigator, or permission of Co-Principal Investigators, on research protocol.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • ICF
  • CSR

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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