ClinicalTrials.gg
Status unknownNCT05265572Updated Apr 11, 2022

Evaluation of the Impact of a Personal and Domestic Hygiene Intervention on Lead Exposure in a Community Close to a Mine Dump

An interventional study of Domestic Hygiene and household hygiene Intervention in Lead Poisoning and Lead Poison Children, sponsored by University of Johannesburg. Status unknown at 1 site in South Africa. Open to participants aged 1 Year to 5 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-04-11.

Sponsored by University of Johannesburg · Not applicable, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Apr 2022), so the status shown — last known as Enrolling by invitation — may be out of date.

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Sep 2021, registered Feb 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
576
Allocation
Randomized
Ages
1 Year to 5 Years
Sex
All
01

Study summary

The study evaluates the impact of a personal and domestic hygiene intervention on exposure to lead in a community close to a mine dump. A before and after intervention study will be conducted in a selected area to determine lead exposure levels and the reduction or not after application of the intervention.

Read the detailed description

A before and after intervention study will be conducted with a control and intervention group, where data will be collected at the household (through questionnaire based interviews, floor and/or windowsill samples and soil samples collection) and individual level (through hand dust wipe sample collection). In phase one, both the control and intervention group will be interviewed, household floor and/or windowsill dust wipes will be taken, yard soil sample collected and hand dust wipe samples will be taken from children in participating households. After baseline data collection, participants will be allocated into either intervention or control group. The intervention group will participate in the domestic hygiene demonstration and educational discussion.

02

Conditions studied

  • Lead Poisoning
  • Lead Poison Children

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Keywords

  • Lead
  • Lead exposure
  • Mine Dumps
03

In context

Lead Poisoning

27 studies on the registry are indexed under Lead Poisoning; 2 are open to participants now.

This study's planned enrollment of 576 is above the median of 175 across 11 interventional studies indexed under Lead Poisoning.

Browse Lead Poisoning studies →

Lead sponsor

University of Johannesburg is the lead sponsor of 17 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Year to 5 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Children between the ages of one and five years

Exclusion criteria

Exclusion Criteria:

  • Children above 5 years
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
576 participants (estimated)

Study arms

  • Experimental
    Intervention group

    The group that will receive the intervention to apply

    Behavioral: Domestic Hygiene and household hygiene Intervention

  • No intervention
    Control group

    The group that will not receive the intervention

Interventions

  • BehavioralDomestic Hygiene and household hygiene Intervention

    A demonstration on the domestic hygiene intervention will be conducted where participants will be guided on optimal cleaning of windowsills, floors and other surfaces with water and detergent, and advised on appropriate method of cleaning. Participants will be provided with a package of cleaning materials (mop, bucket, detergent, hand wash liquid soap and cloth for wet dusting) which will be used during the demonstration, and retained by participants to facilitate sustainability of the intervention during and after the study. Participants will be further engaged in an educational discussion, with the aid of a specially designed educational pamphlet containing information about health effects potentially associated with dust lead exposure from mine dumps and the personal hygiene and domestic hygiene steps that may be followed to reduce dust lead exposure.

06

What researchers measure

Primary outcomes

  1. Lead exposure level

    To detect a mean difference in change from baseline to follow-up of -0.5 μg/dL between the control and experimental group, with common standard deviation of 2 μg/dL

    Time frame: Three months

Secondary outcomes

  1. Reference Lead exposure level

    A reference level of 5.0 μg/dL for public health intervention of exposure to lead

    Time frame: Three months

07

Study locations

1 site
  • Snake Park, Soweto
    Johannesburg, Gauteng 1863, South Africa
08

References and documents

Publications

  • Mokoatle C, Mathee A, Street R, Nkosi V. A study protocol to evaluate the impact of a personal and domestic hygiene intervention on lead exposure in a community next to a mine dump. BMC Public Health. 2022 Jun 4;22(1):1123. doi: 10.1186/s12889-022-13439-8. PubMed 35658916 ↗

Individual participant data

Plan to share: Yes — All collected IDP to be shared

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report, Analytic code

Time frame: Through out the duration of the study up to a period of five years

Access criteria: Only the research team will access IPD for capturing and analysis of covariance and descriptive statistics.

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Sep 2021 (actual). Primary completion is estimated for Jul 2022, 10 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 18, 2022
First posted
Mar 3, 2022
StartActual
Sep 14, 2021
Primary completionEst.
Jul 31, 2022
CompletionEst.
Sep 30, 2022
Last update
Apr 11, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 11, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05265572
Lead sponsor
University of Johannesburg
Collaborators
Medical Research Council, South Africa
Responsible party
Charlotte Mokoatle (Principal Investigator, University of Johannesburg) — Principal investigator
First posted
Mar 3, 2022
Start date
Sep 14, 2021
Primary completion
Jul 31, 2022 (estimated)
Completion
Sep 30, 2022 (estimated)
Last update
Apr 11, 2022

Study contacts

Makhutsisa C Mokoatle, Masters
principal investigator · University of Johannesburg
Vusumuzi Nkosi, PhD
study director · Medical Research Council, South Africa

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Apr 2022. You cannot join it, but the record below documents what was studied.

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