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Regular Growth Monitoring (RGM) of Young Children in Guinea-Bissau

13 июля 2026 г. обновлено: Susan B. Roberts, Trustees of Dartmouth College

Pilot Study to Assess the Benefits and Sustainability of Regular Growth Monitoring (RGM) of Young Children in Villages in Guinea-Bissau

Wasting (severe thinness) is a common and serious problem among young children in rural Guinea-Bissau. Community Health Agents (CHAs) can help prevent malnutrition by regularly measuring children's growth and advising families on nutritious local foods. However, this practice is not consistently implemented.

This pilot study will test whether implementing Regular Growth Monitoring (RGM) by CHAs every month is feasible and effective in reducing malnutrition among children aged 6 months to 5 years in two rural villages. Investigators will also compare three methods for measuring mid-upper arm circumference (MUAC), which is used to detect malnutrition: the standard WHO tape measure, a photograph of the arm, and a simple bracelet. The goal is to identify which method is easiest for CHAs to use reliably.

Baseline and final measurements will be taken in both villages. One village will receive the monthly RGM intervention first, followed by the second village. Families will also be asked about their experiences with the program through brief questionnaires.

Обзор исследования

Подробное описание

Wasting is prevalent in rural Guinea-Bissau villages and adversely affects child health and cognitive development long-term. Prior work by this team of investigators suggests that regular feedback from Community Health Agents (CHAs) to caregivers, including recommendations of locally available nutritious recipes for at-risk children, may reduce the incidence of moderate acute malnutrition (MAM) and severe acute malnutrition (SAM). However, routine growth monitoring (RGM) has been largely unfeasible at the village level due to measurement complexity and limited training resources. Modern technology and artificial intelligence may help make this more scalable.

This is a proof-of-concept, sequential pilot study conducted in two villages in Guinea-Bissau with which the team has an established relationship. Baseline anthropometric measurements will be collected on all eligible children (aged 6 months to 5 years, without SAM at enrollment) in both villages. Children identified with SAM at baseline will be referred to the local malnutrition clinic and excluded from the study.

One village will begin the RGM intervention immediately after baseline data collection. The second village will begin the intervention after final data collection in the first village. Assignment order will be by PI decision rather than randomization, as required by the collaborating UCSF team members.

During the RGM period, CHAs will screen each child monthly using all three mid-upper arm circumference (MUAC) methods: (1) WHO tape measure (reference standard), (2) arm photograph, and (3) bracelet. Data will be entered into a secure REDCap database. Children meeting SAM criteria (by tape measure) will be referred to tertiary care; children with MAM will receive weekly CHA nutrition education on local recipes. Measurements collected at baseline and end-of-study include: weight, height, MUAC by all three methods, skinfold thicknesses (biceps and triceps), and family demographics.

After study completion, brief questionnaires will be administered to parents, CHAs, and Ministry of Health staff to assess perceived effects, acceptability, feasibility, and preferences among the monitoring methods. This study has been approved by both the Dartmouth College CPHS and the Ministry of Health in Guinea-Bissau.

Тип исследования

Интервенционный

Регистрация (Оцененный)

400

Фаза

  • Непригодный

Контакты и местонахождение

В этом разделе приведены контактные данные лиц, проводящих исследование, и информация о том, где проводится это исследование.

Места учебы

    • Bissau Region
      • Bissau, Bissau Region, Гвинея-Бисау, 1000
        • Two villages in rural Guinea-Bissau

Критерии участия

Исследователи ищут людей, которые соответствуют определенному описанию, называемому критериям приемлемости. Некоторыми примерами этих критериев являются общее состояние здоровья человека или предшествующее лечение.

Критерии приемлемости

Возраст, подходящий для обучения

  • Ребенок

Принимает здоровых добровольцев

Да

Описание

Inclusion Criteria:

  • Children aged 6 months to 5 years residing in one of the two selected villages in Guinea-Bissau
  • Caregiver willing to enroll the child in the study (verbal consent provided)
  • Caregiver can provide birth certificate or documentation of child's age
  • Child does not have severe acute malnutrition (SAM) at the baseline assessment

Exclusion Criteria:

  • Children diagnosed with severe acute malnutrition (SAM) at baseline (these children will be referred to the local malnutrition clinic)
  • Children whose caregivers do not wish to participate

Учебный план

В этом разделе представлена ​​подробная информация о плане исследования, в том числе о том, как планируется исследование и что оно измеряет.

Как устроено исследование?

Детали дизайна

  • Основная цель: Профилактика
  • Распределение: Нерандомизированный
  • Интервенционная модель: Последовательное назначение
  • Маскировка: Нет (открытая этикетка)

Оружие и интервенции

Группа участников / Армия
Вмешательство/лечение
Экспериментальный: Village #1 (initial start)
Children aged 6 months to 5 years in the first village who do not have SAM at baseline. This village receives the monthly Regular Growth Monitoring (RGM) intervention immediately after baseline data collection. CHAs perform monthly MUAC screening using three methods; at-risk children are referred or receive caregiver nutrition education.
Monthly malnutrition screening by Community Health Agents (CHAs) using three MUAC methods: (1) WHO standard tape measure, (2) arm photograph for remote review, and (3) a solid bracelet device. The tape measure is the reference standard. Children identified with SAM are referred to a tertiary malnutrition clinic; children with MAM have their caregivers provided with weekly education on using local nutritious recipes to support recovery. Data are entered into REDCap and reviewed remotely by the US research team.
Активный компаратор: Village #2 (delayed start)
Children aged 6 months to 5 years in the second village who do not have SAM at baseline. This village serves as a comparison group during the first village's RGM period, then receives the same RGM intervention subsequently.
Monthly malnutrition screening by Community Health Agents (CHAs) using three MUAC methods: (1) WHO standard tape measure, (2) arm photograph for remote review, and (3) a solid bracelet device. The tape measure is the reference standard. Children identified with SAM are referred to a tertiary malnutrition clinic; children with MAM have their caregivers provided with weekly education on using local nutritious recipes to support recovery. Data are entered into REDCap and reviewed remotely by the US research team.

Что измеряет исследование?

Первичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Prevalence of severe acute malnutrition (SAM)
Временное ограничение: Baseline to study completion (~4 months)
Proportion of enrolled children meeting SAM criteria (by WHO tape measure MUAC) at study completion, compared between early-start and delayed-start villages.
Baseline to study completion (~4 months)

Вторичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Prevalence of moderate acute malnutrition (MAM)
Временное ограничение: Baseline to study completion (~4 months)
Proportion of enrolled children meeting MAM criteria (by WHO tape measure MUAC) at study completion, compared between early-start and delayed-start villages.
Baseline to study completion (~4 months)
Weight-for-length z-score
Временное ограничение: Baseline to study completion (~4 months)
Change in weight-for-length z-score between baseline and final assessment, compared between early-start and delayed-start villages
Baseline to study completion (~4 months)
Weight-for-age z-score
Временное ограничение: Baseline to study completion (~4 months)
Change in weight-for-age z-score between baseline and final assessment, compared between early-start and delayed-start villages.
Baseline to study completion (~4 months)
Length-for-age z-score
Временное ограничение: Baseline and study completion (~4 months)
Change in length-for-age z-score between baseline and final assessment, compared between early-start and delayed-start villages
Baseline and study completion (~4 months)

Другие показатели результатов

Мера результата
Мера Описание
Временное ограничение
Agreement of new RGM methods vs. reference standard
Временное ограничение: Assessed at each study visit (monthly from baseline to 4 months follow-up)
Accuracy of the arm photograph and bracelet for detecting MAM and SAM relative to the WHO tape measure MUAC.
Assessed at each study visit (monthly from baseline to 4 months follow-up)
Acceptability and feasibility of RGM methods
Временное ограничение: N/A, data collected at study completion (4 month visit)
Perceived acceptability and feasibility of the three MUAC monitoring methods among parents, CHAs, and Ministry of Health staff, collected via brief structured questionnaires.
N/A, data collected at study completion (4 month visit)

Соавторы и исследователи

Здесь вы найдете людей и организации, участвующие в этом исследовании.

Следователи

  • Главный следователь: Susan B. Roberts, Ph.D., Dartmouth College

Даты записи исследования

Эти даты отслеживают ход отправки отчетов об исследованиях и сводных результатов на сайт ClinicalTrials.gov. Записи исследований и сообщаемые результаты проверяются Национальной медицинской библиотекой (NLM), чтобы убедиться, что они соответствуют определенным стандартам контроля качества, прежде чем публиковать их на общедоступном веб-сайте.

Изучение основных дат

Начало исследования (Действительный)

5 мая 2026 г.

Первичное завершение (Оцененный)

1 декабря 2026 г.

Завершение исследования (Оцененный)

1 декабря 2026 г.

Даты регистрации исследования

Первый отправленный

30 апреля 2026 г.

Впервые представлено, что соответствует критериям контроля качества

7 мая 2026 г.

Первый опубликованный (Действительный)

13 мая 2026 г.

Обновления учебных записей

Последнее опубликованное обновление (Действительный)

15 июля 2026 г.

Последнее отправленное обновление, отвечающее критериям контроля качества

13 июля 2026 г.

Последняя проверка

1 апреля 2026 г.

Дополнительная информация

Термины, связанные с этим исследованием

Планирование данных отдельных участников (IPD)

Планируете делиться данными об отдельных участниках (IPD)?

ДА

Описание плана IPD

Deidentified participant data will be stored and made publicly available at an appropriate repository following publication of the primary manuscript. Participant names stored locally in Guinea-Bissau will be retained for 3 years after study completion and then destroyed. The US team will not have access to identifiable participant information.

Сроки обмена IPD

Following publication of the primary manuscript.

Критерии совместного доступа к IPD

Publicly available deidentified dataset; access details to be determined at time of publication.

Совместное использование IPD Поддерживающий тип информации

  • STUDY_PROTOCOL
  • САП

Информация о лекарствах и устройствах, исследовательские документы

Изучает лекарственный продукт, регулируемый FDA США.

Нет

Изучает продукт устройства, регулируемый Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов США.

Нет

Эта информация была получена непосредственно с веб-сайта clinicaltrials.gov без каких-либо изменений. Если у вас есть запросы на изменение, удаление или обновление сведений об исследовании, обращайтесь по адресу register@clinicaltrials.gov. Как только изменение будет реализовано на clinicaltrials.gov, оно будет автоматически обновлено и на нашем веб-сайте. .

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