Female Genital Schistosomiasis in Tanzania (ShWAB)

March 15, 2023 updated by: IRCCS Sacro Cuore Don Calabria di Negrar

Female Genital Schistosomiasis in Tanzania: Evaluation of Prevalence and Performance of Schistosoma Haematobium-specific Polymerase Chain Reaction (PCR) on Operator-based and Self-collected Cervical-vaginal Samples Among Women Living in Endemic Areas, North-western Tanzania

A cross-sectional survey will be conducted among 200 volunteering women aged 18- 45 years and having had prior sexual activity living in the target villages of Itilima and Maswa districts, North-western Tanzania. A single midday urine sample and two cervical-vaginal swabs (both self-collected and speculum-aided collected by a female healthcare worker) will be obtained from participating women and processed using urine filtration and polymerase chain reaction (PCR) for cervico-vaginal samples. A pre-tested structure questionnaire will be used to collect sociodemographic, clinical, and sampling acceptability information from participants.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not 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

A cross-sectional survey will be conducted among 200 volunteering women aged 18-45 years and having had prior sexual activity living in the target villages of Itilima and Maswa districts, North-western Tanzania. A single midday urine sample and two cervical-vaginal swabs (both self-collected and speculum-aided collected by a female healthcare worker) will be obtained from participating women and processed using urine filtration and polymerase chain reaction (PCR) for cervico-vaginal samples. A pre-tested structure questionnaire will be used to collect sociodemographic, clinical, and sampling acceptability information from participants. Prevalence of Female Genital Schistosomiasis (FGS) will be estimated based on positivity of at least one genital specimen. Quantitative data will be described using means/medians and standard deviation/interquartile range, as appropriate. Qualitative data will be described as numbers and percentages, and compared using Chi-squared or Fisher Exact test, as appropriate. Sensitivity of the two genital sampling methods will be compared using the composite reference constituted by positivity in at least one genital swab, and the performance of the two methods compared using Cohen's Kappa statistics, Fisher's Exact test and parametric/nonparametric test for comparison of PCR Ct values, as appropriate.

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.
206

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 Locations

  • Italy
    • Verona
      • Negrar, Verona, Italy, 37024
        • IRCCS Sacro Cuore Don Calabria hospital
  • Tanzania
      • Mwanza, Tanzania
        • Catholic University of Health and Allied Sciences (CUHAS)

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

18 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Women aged 18-45 years,
  • having had prior sexual activity (to allow speculum-aided gynaecological visit and genital sampling),
  • resident in any of the selected village of Itilima and Maswa districts,
  • irrespective of complaining of urogenital symptoms,
  • not reporting any exclusion criteria,
  • willing to participate to the study as documented by signing the informed consent form.

Exclusion Criteria:

  • Menstruation at the time of visit (since this limits visualization of the cervix and correct sampling);
  • no prior sexual activity (since this does not allow the use of a speculum in the visit);
  • known pregnancy;
  • documented treatment for schistosomiasis in the past 6 months;
  • age <18 or >45 years;
  • unwilling to sign the informed consent form.

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

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
Prevalence of Female Genital Schistosomiasis
Time Frame: 6 months
Prevalence of Female Genital Schistosomiasis among women aged 18-45 years living in selected villages of Itilima and Maswa districts, North-western Tanzania
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
Acceptability of different sample collection and diagnostic approaches (genital self-sampling, speculum-aided collected genital sampling conducted by female or hypothetically by male healthcare workers)
Time Frame: 6 months
The participant will be asked some questions about her clinical history and about her experience with self-sampling.
6 months
Sensitivity and specificity of self-collected versus healthcare operator speculum-aided collected cervico-vaginal samples for diagnosis of Female Genital Schistosomiasis
Time Frame: 6 months
Sensitivity of the two genital sampling methods will be calculated using the composite reference constituted by positivity in at least one genital swab, and the performance of the two methods.
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.
IRCCS Sacro Cuore Don Calabria di Negrar

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 4, 2022

Primary Completion (Anticipated)

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.
March 17, 2023

Study Completion (Anticipated)

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.
March 17, 2023

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).
March 3, 2023

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.
March 15, 2023

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 28, 2023

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.
March 28, 2023

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.
March 15, 2023

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.
March 1, 2023

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.
  • 2022-07

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Study data will be shared together with the paper describing the study results.

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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