Randomized Evaluation of Voucher Interventions for Value and Effectiveness (REVIVE) in Philippines

Обзор

This study aims to evaluate whether revised food voucher programs, combined with nutrition education sessions, can improve food security, dietary quality, nutrition knowledge, and nutritional outcomes among low-income households in the Philippines. Researchers will compare different monthly voucher amounts-Philippine Peso (PhP) 3,000, PhP 5,000, and PhP 8,000-with a no-voucher control group to determine which approach is most effective. The main questions the study aims to answer are: * Do food vouchers improve household food security, reduce hunger, and improve dietary quality and nutrient intake? * Do larger voucher amounts lead to greater improvements in nutrition and health outcomes? * Does enhanced nutrition education improve nutrition knowledge and healthy eating practices? Participants will: * Receive either a monthly food voucher or no voucher, depending on study group assignment * Attend nutrition education and Social and Behavior Change Communication (SBCC) sessions if assigned to a voucher group * Complete household interviews on food consumption, household expenditures, food security, and nutrition knowledge * Participate in dietary assessments and anthropometric measurements for women and children under 5 years of age

Подробное описание

The REVIVE study is a cluster-randomized controlled trial designed to evaluate the effectiveness of revised food voucher interventions combined with nutrition-focused Social and Behavior Change Communication (SBCC) among low-income households in the Philippines. The study will compare three monthly voucher amounts (PhP 3,000, PhP 5,000, and PhP 8,000) with a control group receiving no voucher to assess whether larger voucher values lead to greater improvements in food security, dietary quality, and nutrition-related outcomes.

The intervention includes structured food vouchers with revised allocations emphasizing protein-rich foods, fruits, and vegetables, together with nutrition education sessions delivered by trained local government staff. The study will be implemented across selected urban and rural areas in the Philippines.

Researchers will collect household- and individual-level data through surveys, dietary assessments, and anthropometric measurements to examine the effects of the intervention on household food consumption, nutrition knowledge, food insecurity, dietary quality, and nutritional status among women of reproductive age and children under five years of age. The study will also assess potential spillover effects within participating communities.

Вмешательства

• Поведенческое Food Voucher + SBCC (PhP 3,000)
  Households receive a monthly food voucher valued at PhP 3,000 with a structured allocation of 10% for carbohydrates and oils, 45% for protein-rich foods, and 45% for fruits and vegetables. Vouchers are redeemable continuously throughout the month. The intervention is combined with six structured social and behavior change communication (SBCC) sessions focused on nutrition knowledge, healthy dietary practices, maternal and child nutrition, and WASH behaviors, delivered by trained local government
• Поведенческое Food Voucher + SBCC (PhP 5,000)
  Households receive a monthly food voucher valued at PhP 5,000 with the same allocation structure (10% carbohydrates and oils, 45% protein, 45% fruits and vegetables) and continuous redemption design. The voucher is paired with six SBCC sessions covering nutrition education and behavior change topics related to diet quality and household nutrition.
• Поведенческое Food Voucher + SBCC (PhP 8,000)
  Households receive a monthly food voucher valued at PhP 8,000 with the same structured food group allocation and continuous redemption system. The intervention includes six SBCC sessions aimed at improving nutrition knowledge and dietary practices for maternal and child health.

Первичные конечные точки

• Nutrition Knowledge [Срок оценки: Baseline and End of intervention (approximately 24 months)]
• Individual Nutrient Adequacy [Срок оценки: End of intervention (approximately 24 months)]
• Minimum Dietary Diversity for Women (MDD-W) [Срок оценки: End of intervention (approximately 24 months)]
• Global Dietary Quality Score (GDQS) [Срок оценки: End of intervention (approximately 24 months)]
• Hunger and Food Insecurity Experience Scale [Срок оценки: Baseline and End of intervention (approximately 24 months)]

Вторичные конечные точки (6)

• Household Food Consumption Score (FCS) [Срок оценки: Baseline and endline (approximately 24 months after baseline survey)]
• Height-for-Age Z-score (HAZ) in Children Under Five Years of Age [Срок оценки: End of intervention (approximately 24 months)]
• Weight-for-Age Z-score (WAZ) in Children Under Five Years of Age [Срок оценки: End of intervention (approximately 24 months)]
• Weight-for-Height Z-score (WHZ) in Children Under Five Years of Age [Срок оценки: End of intervention (approximately 24 months)]
• Body Mass Index (BMI) Among Women of Reproductive Age [Срок оценки: End of intervention (approximately 24 months)]
• Household Food and Non-food Expenditure [Срок оценки: Baseline and End of intervention (approximately 24 months)]

Критерии участия

Критерии включения

• Households enrolled in the REVIVE study sample drawn from Listahanan 3-eligible low-income households
• Residency within selected study clusters in the study municipalities
• Household consent to participate in the study and all survey components
• Availability of a primary respondent (meal planner or primary food preparer) willing to participate in household interviews
• For individual dietary assessment components: presence of at least one woman of reproductive age (15-49 years) and/or at least one child under five years of age, where applicable

Критерии исключения

• Households unwilling or unable to provide informed consent
• Households not residing within the designated study clusters at the time of baseline data collection
• Inability to complete core survey modules due to communication barriers or other conditions preventing reliable data collection

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Открытое

Основная цель

Профилактика

Центры проведения

США · 1 центр

• International Food Policy Research Institute — Washington D.C.

Идентификаторы

NCT: NCT07640594 · NDH-26-0412

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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