ClinicalTrials.gg
Enrolling by invitationNCT07702916KILONGA2Updated Jul 14, 2026

Effect of Hygiene and Menstrual Hygiene Interventions on Learning and Psychosocial Wellbeing in Madagascar

An interventional study of Peer leadership/sensitization + sanitary pads and School infrastructure in Urinary Tract Infections, Malnutrition and Inflammation, sponsored by University of California Santa Cruz. Enrolling by invitation at 1 site in Madagascar. Open to female participants aged 11 Years to 21 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-14.

Sponsored by University of California Santa Cruz · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Aug 2026, 3 months ago, but the record still lists the study as enrolling by invitation.
  • Registered 1 year 9 months after the study started (first participant enrolled Oct 2024, registered Jul 2026).
Phase
Not applicable
Study type
Interventional
Enrollment
3,080
Allocation
Randomized
Ages
11 Years to 21 Years
Sex
Female
01

Study summary

A previous study in schools in rural Madagascar found that a bundle of hygiene-focused interventions substantially improved girls' learning outcomes. This study disentangles the effects of physical infrastructure (latrines, handwashing basins) from other intervention components (peer sensitization and free sanitary pad distribution) in a cluster-randomized trial across 140 secondary schools in the Amoron'i Mania region. The trial originally measured learning and psychosocial wellbeing outcomes and was prospectively registered with the AEA RCT Registry (AEARCTR-0014423). The study team is now also collecting secondary health biomarker outcomes (e.g., salivary cortisol and blood-based C-reactive protein) and is registering those health biomarker endpoints with ClinicalTrials.gov.

Read the detailed description

140 secondary schools were randomly assigned to one of four arms: (1) control, (2) infrastructure only, (3) sensitization + free sanitary pads, or (4) the full combined package. Outcomes are assessed via girls' surveys, teacher/director surveys, and school-level surveys at baseline (Oct 2024), midline, and endline.

This registration draws on two overlapping analytic samples. The first is the full 140-school evaluation sample (35 schools/arm; approximately 3,080 girls, \~22/school), used for the cognitive/academic composite, self-reported psychosocial well-being (GAD-7, PHQ-9), and health outcomes that do not require biospecimen collection or laboratory processing - self-reported infectious disease symptoms, mid-upper-arm circumference (MUAC), and self-reported urinary tract infection. These are collected during the social-science endline survey (May-June 2026), concurrent with the parent trial's learning and psychosocial data collection. The second is a 80-school biomarker subsample (approximately 20 schools/arm; \~1,360 girls, \~17/school), used specifically for salivary cortisol and blood-based C-reactive protein (CRP) drawn from a venipuncture. These outcomes require biospecimen collection, cold-chain transport, and laboratory assay, and are therefore restricted to the subset of schools logistically accessible for that purpose. They are collected at a separate endline health/biomarker visit at a Basic Health Center (July-August 2026, \~19 months post-baseline).

This registration covers the biomarker outcomes component of the trial, with data collection and analysis completing by approximately December 2026; the broader parent Kilonga 2 trial (registered with the AEA RCT Registry, AEARCTR-0014423) has a longer overall completion date of December 2027, covering the full set of learning and psychosocial endpoints. The biospecimen collection protocol includes additional biomarkers, cortisol and C-reactive protein, as registered secondary outcomes.

This trial was registered with ClinicalTrials.gov retrospectively, after participant enrollment had already begun. At inception (October 2024), the study was designed and IRB-approved (Paris School of Economics IRB #2024-046, approved September 17, 2024) as a social science evaluation focused on learning outcomes, and was prospectively registered with the AEA RCT Registry (AEARCTR-0014423) on September 23, 2024. Registration with ClinicalTrials.gov was initiated upon expanding the study to include health-related biomarker secondary endpoints, in order to comply with ICMJE requirements for biomedical journal publication. The Pre-Analysis Plan covering these health endpoints will be timestamped on the Open Science Framework prior to the start of health data collection in July 2026.

02

Conditions studied

  • Urinary Tract Infections
  • Malnutrition
  • Inflammation
  • Stress
  • Menstrual Hygiene

Keywords

  • menstrual hygiene management
  • menstrual hygiene intervention
  • menstrual stigma reduction intervention
  • adolescents
  • school-based intervention
  • WASH (water, sanitation, and hygiene)
  • Madagascar
  • cluster-randomized trial
  • biomarkers
  • psychosocial stress
  • cortisol
  • inflammation
  • anemia
  • urinary tract infection
  • environmental enteric dysfunction
  • gut microbiome
  • menstrual stigma
03

In context

Urinary Tract Infections

803 studies on the registry are indexed under Urinary Tract Infections; 133 are open to participants now.

This study's planned enrollment of 3,080 is above the median of 131 across 560 interventional studies indexed under Urinary Tract Infections.

Browse Urinary Tract Infections studies →

Lead sponsor

University of California Santa Cruz is the lead sponsor of 3 studies on the registry; 3 are open to participants now.

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

04

Who can participate

Ages eligible
11 Years to 21 Years
Sexes eligible
Female
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

  • Girl identified in the Kilonga 2 evaluation sample (randomly selected during the December 2024-January 2025 baseline from class registers across the 140 participating schools); participants were 11-20 years old at baseline enrollment and are approximately 12-21 years old at the time of endline/health-outcomes data collection (May-August 2026)
  • Full evaluation sample (n\~3,080; \~22 girls/school): all girls in the Kilonga 2 sample across the 140 schools are eligible for the cognitive, self-reported psychosocial, and non-biospecimen health outcomes, collected at the social-science endline.
  • Biomarker subsample (n\~1,360; \~17 girls/school): girls attending one of the 80 schools selected for the health biomarker subsample (logistically accessible for biospecimen collection and cold-chain maintenance) are additionally eligible for salivary cortisol and blood-based C-reactive protein outcomes.
  • obtained from parent/legal guardian, and assent obtained from the participant herself

Exclusion criteria

Exclusion Criteria:

  • Adolescents not meeting the inclusion criteria above
  • Adolescents (or their parent/legal guardian) who refuse to participate or who withdraw consent/assent at any time
  • Adolescents for whom sample collection is judged impossible or at the time of collection (e.g., health status precluding collection)
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Single (Investigator)
Enrollment
3,080 participants (estimated)

Study arms

  • No intervention
    Control

    No intervention

  • Experimental
    School infrastructure only

    Construction of latrines and handwashing basins

    Other: School infrastructure

  • Experimental
    Peer leadership/sensitization + sanitary pads

    Young Girl Leaders program, teacher sensitization, WASH competition, free sanitary pad vouchers

    Behavioral: Peer leadership/sensitization + sanitary pads

  • Experimental
    Full package

    Combination of all interventions: Construction of latrines and handwashing basins and Peer leadership/sensitization + sanitary pads

    Behavioral: Peer leadership/sensitization + sanitary pads · Other: School infrastructure

Interventions

  • BehavioralPeer leadership/sensitization + sanitary pads

    Young Girl Leaders program, teacher sensitization, WASH competition, free sanitary pad vouchers

  • OtherSchool infrastructure

    Construction of latrines and handwashing basins

06

What researchers measure

Primary outcomes

  1. Learning - Academic Test Scores

    Standardized math/literacy test scores and official school grades (140-school full evaluation sample and 80-school biomarker subsample)

    Time frame: Up to 19 months

  2. Learning - School Grades

    Official school grades (140-school full evaluation sample and and 80-school biomarker subsample)

    Time frame: Up to 19 months

  3. Psychosocial Wellbeing - Heart Rate

    Objective stress measure: heart rate, beats per minute (140-school full evaluation sample and 80-school biomarker subsample)

    Time frame: Up to 19 months

  4. Psychosocial Wellbeing - Blood Pressure

    Objective stress measure: systolic/diastolic blood pressure, mmHg (140-school full evaluation sample and 80-school biomarker subsample)

    Time frame: Up to 19 months

  5. Psychosocial Wellbeing - Salivary Cortisol Reactivity

    Salivary cortisol reactivity (80-school biomarker subsample). Cortisol reactivity, calculated as the area under the curve with respect to increase (AUCi), based on samples collected at clinic arrival (baseline), 5-8 minutes pre-venipuncture, and 20 minutes post-venipuncture. AUCi is calculated using the trapezoidal method: the area under the curve with respect to ground (AUCg) is first calculated by summing the areas of the trapezoids formed between each pair of consecutive cortisol values and their corresponding time interval, then subtracting the area under the baseline value across the total sampling duration. This is expressed as AUCg = Σ\[(Ci + Ci+1)/2 × Ti\], where Ci is the cortisol concentration at a given timepoint, Ci+1 is the concentration at the subsequent timepoint, and Ti is the time interval between them. AUCi = AUCg - (baseline cortisol × total sampling duration). Reported in µg/dL×min.

    Time frame: Up to 19 months

  6. Menstrual stigma

    Self-reported menstrual stigma (140-school full evaluation sample)

    Time frame: Up to 17 months

Secondary outcomes

  1. Hygiene Knowledge

    Self-reported hygiene knowledge (140-school full evaluation sample)

    Time frame: Up to 17 months

  2. Hygiene Behavior

    Self-reported hygiene behavior (140-school full evaluation sample)

    Time frame: Up to 17 months

  3. Menstrual Knowledge

    Self-reported menstrual hygiene knowledge (140-school full evaluation sample)

    Time frame: Up to 17 months

  4. Menstrual Behavior

    Self-reported menstrual hygiene behavior (140-school full evaluation sample)

    Time frame: Up to 17 months

  5. Student/Teacher Motivation

    Self-reported student/teacher motivation (140-school full evaluation sample)

    Time frame: Up to 17 months

  6. Network Integration

    Self-reported social network integration (140-school full evaluation sample)

    Time frame: Up to 17 months

  7. Bullying

    Self-reported bullying (140-school full evaluation sample)

    Time frame: Up to 17 months

  8. Self-reported Psychosocial Wellbeing

    Self-reported psychosocial wellbeing (140-school full evaluation sample and 80-school biomarker subsample)

    Time frame: Up to 19 months

  9. Information Diffusion

    Self-reported exposure to hygiene/menstruation discussions (140-school full evaluation sample)

    Time frame: Up to 17 months

  10. School Attendance

    Official school attendance records (140-school full evaluation sample)

    Time frame: Up to 17 months

  11. School History

    Official school records of dropout/withdrawal status and grade repetition (140-school full evaluation sample)

    Time frame: Up to 17 months

  12. Sexual Activity

    Self-reported early sexual activity (140-school full evaluation sample)

    Time frame: Up to 17 months

  13. Pregnancy

    Self-reported pregnancy (140-school full evaluation sample and 80-school biomarker subsample)

    Time frame: Up to 19 months

  14. Health - Infectious Disease Symptoms

    Self-reported infectious disease symptoms (140-school full evaluation sample and 80-school biomarker subsample)

    Time frame: Up to 19 months

  15. Health - Mid-Upper-Arm Circumference (MUAC)

    MUAC, cm (140-school full evaluation sample and 80-school biomarker subsample)

    Time frame: Up to 19 months

  16. Health - Urinary Tract Infection

    Self-reported urinary tract infection (140-school full evaluation sample and 80-school biomarker subsample)

    Time frame: Up to 19 months

  17. Health - C-Reactive Protein

    Blood-based C-reactive protein, mg/L (80-school biomarker subsample)

    Time frame: Up to 19 months

07

Study locations

1 site
  • Laboratoire d'Analyses Médicales Malagasy
    Antananarivo, Madagascar
08

References and documents

Individual participant data

Plan to share: No — Individual participant data will not be made publicly available. Per the approved protocol (UCSC IRB: HS-FY2025-210), all survey and biospecimen data are de-identified at the point of collection; identifiers are stored separately from research data and accessible only to authorized project personnel.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Oct 2024 (actual). Primary completion is estimated for Aug 2026, 22 months after the start.

Of 136 non-industry interventional studies with no phase under Urinary Tract Infections, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 39. This study's planned 22 months is close to that.

Counting every sponsor, half of 153 studies reached it within 22 months; a quarter within 8 and three quarters within 37.

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

Registered
Jul 1, 2026
First posted
Jul 14, 2026
StartActual
Oct 1, 2024
Primary completionEst.
Aug 2026
CompletionEst.
Dec 2026
Last update
Jul 14, 2026
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 Jul 14, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07702916
Lead sponsor
University of California Santa Cruz
Collaborators
Paris School of Economics, Laboratoire d'Analyses Médicales Malagasy (LA2M), Consultant Associates, Care International
Responsible party
Sponsor
First posted
Jul 14, 2026
Start date
Oct 1, 2024
Primary completion
Aug 2026 (estimated)
Completion
Dec 2026 (estimated)
Last update
Jul 14, 2026

Study contacts

Audrie Lin, PhD, MPH
principal investigator · University of California Santa Cruz
Karen Macours, PhD
principal investigator · Paris School of Economics
Duncan Webb, PhD
principal investigator · Nova School of Business and Economics
Mariachiara Iannuzzi, MS
principal investigator · Paris School of Economics
Oscar M Díaz, MS
principal investigator · Paris School of Economics
William Amedanou, MS
principal investigator · Paris School of Economics
Juliet Ellenbach, BS
principal investigator · University of California Santa Cruz
Eliane Z Ralison
principal investigator · Consultant Associates
Andry M Andrianarivelo, MD
principal investigator · Laboratoire d'Analyses Médicales Malagasy
Ianja I Razanadrakoto, MD
principal investigator · Laboratoire d'Analyses Médicales Malagasy
Tantely J Ramontalambo, MD
principal investigator · Laboratoire d'Analyses Médicales Malagasy

Oversight

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

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