- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT02944682
Pollution de l'air domestique et santé : un essai d'intervention GPL dans plusieurs pays (HAPIN)
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
À l'échelle mondiale, près de 3 milliards de personnes dépendent des combustibles solides pour cuisiner et se chauffer, la grande majorité dans les pays à revenu faible ou intermédiaire (PRFI). La pollution de l'air domestique (HAP) qui en résulte est le troisième principal facteur de risque de la charge mondiale de morbidité en 2010, représentant environ 4,3 millions de décès par an, principalement chez les femmes et les jeunes enfants. Les interventions précédentes ont fourni des foyers de cuisson à base de biomasse plus propres, mais n'ont pas réussi à réduire l'exposition à des niveaux qui produisent des améliorations significatives pour la santé. Il n'y a pas eu d'essais à grande échelle sur le terrain avec des cuisinières au gaz de pétrole liquéfié (GPL), probablement l'intervention évolutive la plus propre.
Le but de cette étude est de mener un essai contrôlé randomisé sur la distribution de réchauds et de combustibles au GPL dans 3 200 ménages de quatre PRFM (Inde, Guatemala, Pérou et Rwanda) afin de fournir des preuves rigoureuses concernant les avantages potentiels pour la santé tout au long de la vie. Chaque site d'intervention recrutera 800 femmes enceintes (âgées de 18 à 34 ans, 9 à <20 semaines de gestation) et attribuera au hasard la moitié de leurs ménages pour recevoir des réchauds au GPL et un approvisionnement de 18 mois de GPL. Les ménages témoins devraient continuer à cuisiner principalement avec des combustibles de biomasse solides et recevront une compensation basée sur un ensemble uniforme de principes à l'échelle de l'essai, adaptés à chaque site sur la base d'une recherche formative. La mère sera suivie avec son enfant jusqu'à ce que l'enfant ait 1 an. Dans les ménages avec une deuxième femme adulte âgée non enceinte (âgée de 40 à <80 ans), les chercheurs l'inscriront et la suivront également pendant la période de suivi de 18 mois afin d'évaluer les résultats cardiopulmonaires, métaboliques et cancéreux. Afin d'optimiser l'utilisation des interventions, les chercheurs mettront en œuvre des stratégies de changement de comportement. Cette étude évaluera l'utilisation des cuisinières, effectuera des évaluations répétées de l'exposition personnelle aux HAP (PM2,5, carbone noir, monoxyde de carbone) et collectera des taches de sang séché et des échantillons urinaires pour l'analyse des biomarqueurs et le stockage des échantillons biologiques sur tous les participants à plusieurs moments. Les critères de jugement principaux sont le faible poids à la naissance, l'incidence de la pneumonie grave et le retard de croissance de l'enfant, ainsi que la tension artérielle chez la femme âgée. Les critères de jugement secondaires comprennent la naissance prématurée et le développement de l'enfant, la tension artérielle maternelle pendant la grossesse et la fonction endothéliale, l'insuffisance respiratoire, l'athérosclérose, les métabolites cancérigènes et la qualité de vie de la femme âgée.
Cette étude portera sur les objectifs spécifiques suivants : (1) à l'aide d'une analyse en intention de traiter, déterminer l'effet d'une intervention randomisée de réchaud à GPL et de carburant sur la santé dans quatre différentes populations des PRITI en utilisant un protocole commun ; (2) déterminer les relations exposition-réponse pour les HAP et les effets sur la santé ; et (3) déterminer les relations entre l'intervention LPG et les biomarqueurs ciblés et exploratoires d'exposition/effets sur la santé.
Cette étude fournira des preuves, y compris les coûts et les stratégies de mise en œuvre, pour éclairer les politiques nationales et mondiales sur la mise à l'échelle des réchauds au GPL parmi les populations vulnérables. En fin de compte, cela facilitera des discussions plus approfondies au niveau politique et identifiera les exigences pour lancer et soutenir les interventions HAP à l'échelle mondiale.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Departamento de Guatemala
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Guatemala City, Departamento de Guatemala, Guatemala, 01015
- Universidad del Valle de Guatemala
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Tamil Nadu
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Chennai, Tamil Nadu, Inde, 600116
- Sri Ramachandra Institute of Higher Education and Research
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Puno, Pérou
- Puno Global Non-Communicable Disease Research Site, School of Medicine, Johns Hopkins University
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Kigali, Rwanda
- Rwanda Research Site, London School of Hygiene and Tropical Medicine, University of Liverpool
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
La description
Critères d'inclusion pour les femmes enceintes :
- Grossesse confirmée (test sanguin ou urinaire hCG positif)
- Âgé de 18 à <35 ans (par auto-déclaration)
- Utilise principalement un poêle à biomasse
- Vit dans la zone d'étude
- 9 - <20 semaines de gestation confirmée par échographie
- Grossesse unique (un fœtus)
- Fœtus viable avec une fréquence cardiaque fœtale normale (120-180 battements par minute) au moment de l'échographie
- Poursuite de la grossesse au moment de la randomisation confirmée par auto-évaluation
- Accepte de participer avec un consentement éclairé
Critères d'exclusion pour les femmes enceintes :
- Fume actuellement des cigarettes ou d'autres produits du tabac
- Prévoit de déménager de façon permanente à l'extérieur de la zone d'étude au cours des 12 prochains mois
- Utilise principalement un réchaud au GPL ou est susceptible d'utiliser principalement du GPL dans un proche avenir
Critères d'inclusion pour les femmes âgées dans le même ménage :
- Âgé de 40 à <80 ans (par auto-déclaration)
Critères d'exclusion pour les femmes âgées du même foyer :
- Fume actuellement des cigarettes ou d'autres produits du tabac
- Enceinte (par auto-déclaration)
- Prévoit de quitter son foyer actuel au cours des 12 prochains mois
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: La prévention
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Expérimental: Cuisinière au gaz de pétrole liquéfié
Les participants randomisés dans le bras expérimental recevront une cuisinière au gaz de pétrole liquéfié (GPL) et un approvisionnement de 18 mois de GPL.
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The intervention consists of a high-quality locally available liquefied petroleum gas (LPG) stove having at least two burners, a continuous supply of LPG fuel for 18 months, and the promotion of stove use on an exclusive basis for cooking.
The intervention will be provided free of charge to all intervention households upon enrollment.
On a weekly basis, study staff will examine stove condition, perform any necessary repairs, and measure and record weight of LPG tanks in order to anticipate need for refills.
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Aucune intervention: Contrôle
Les participants du groupe témoin ne recevront pas de réchaud à gaz de pétrole liquéfié (GPL) et continueront à utiliser les méthodes de cuisson traditionnelles (feu ouvert ou réchauds traditionnels), ou la méthode de cuisson de leur choix.
Les ménages témoins recevront une indemnisation basée sur un ensemble uniforme de principes applicables à l'ensemble de l'essai, adaptés à chaque site sur la base d'une recherche formative.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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Birth weight
Délai: Within 24 hours of birth (up to 5 months post-randomization of mother)
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Birth weight is assessed by a trained nurse or health worker within 24 hours of birth.
Infants are weighed naked or in a pre-weighed blanket.
Weight is measured to the nearest 10 g using a digital electronic scale, if performed by the study field staff; otherwise, hospital medical records are used.
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Within 24 hours of birth (up to 5 months post-randomization of mother)
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Incidence of HAPIN Defined Severe Pneumonia
Délai: Up to 12 months after birth
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The number of times a child has severe pneumonia over their period of follow-up during the first year of life is assessed.
For this study pneumonia criteria are adapted from the WHO classification of childhood pneumonia (2014) and there are 3 algorithms for case criteria: 1) the presence of cough and/or difficult breathing and at least 1 general danger sign plus evidence of pneumonia on lung imaging (i.e., lung ultrasound or chest x-ray), or 2) the presence of cough and/or difficult breathing and hypoxemia (measured either via pulse oximetry (SpO2), or observing a child requiring advanced respiratory support (i.e., intubation and mechanical ventilation, non-invasive ventilation with continuous or bi-level positive airway pressure support, or high-flow nasal cannula oxygen), or 3) children who die prior to evaluation but their death is attributed to pneumonia by verbal autopsy.
Cases of pneumonia are recorded children present to HAPIN health facilities with respiratory symptoms.
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Up to 12 months after birth
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Length-for-age z-score 2 standard deviations below the standard
Délai: 12 months after birth
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The primary outcome measured is stunting at one year of age, defined as a length-for-age z-score (LAZ) that is 2 standard deviations below the median of the growth standard.
Infant length is assessed at birth and quarterly thereafter, until the child is 12 months old.
Z-scores are calculated using the 2006 World Health Organization (WHO) Multi-Growth Reference Standard (MGRS).
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12 months after birth
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Systolic Blood Pressure Among Older Adult Women
Délai: Baseline, 3, 6, 9, 12, and 18 months post-randomization
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Systolic blood pressure is assessed in the older adult women in the intervention and control arms using automatic sphygmomanometers (Omron HEM-907XL; Osaka, Japan).
The study team uses the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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Baseline, 3, 6, 9, 12, and 18 months post-randomization
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Child Linear Growth During Extended Follow-up
Délai: 24, 36, 48 and 60 months of age
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Linear growth of children is assessed in centimeters of height.
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24, 36, 48 and 60 months of age
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Caregiver Reported Early Childhood Development Instrument (CREDI) Score During Extended Follow-up
Délai: 24 months of age
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Child development is assessed with the Caregiver Reported Early Childhood Development Instrument (CREDI).
The CREDI is a population-level measure of early childhood development (ECD) for children from 0-3 years of age.
The CREDI assesses 4 domains of child development: 1) motor (fine and gross motor), 2) language (expressive and receptive language), 3) cognitive (executive function, problem solving and reasoning, and pre-academic knowledge), and 4) social-emotional (emotional and behavioral self-regulation, emotional knowledge, and social competence).
The CREDI long form consists of up to 108 items and the number of questions answered depends on the age of the child.
Responses of "yes" are coded as 1 and "no" is coded as 0; certain items are reverse coded.
Both domain-specific and overall z-scores are calculated.
Total raw scores increase by age (with developmental progression), and higher scores indicate increased development.
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24 months of age
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Malawi Developmental Assessment Tool (MDAT) Score
Délai: 36, 48 and 60 months of age
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The MDAT measures gross motor (39 items), fine motor (42 items), language/cognition (40 items) and social skills (36 items).
Originally developed and validated in rural Malawi, it has now been used in over 25 countries with more than 8,000 children as both a clinical and research tool.
The MDAT is a continuous test with start and stop rules.
Most items are administered directly to the child and items that are not easily observed (e.g., child speaks in full sentences; child understands sharing with others; child can dress self) are administered by parent report.
Children receive either a pass or fail for each item, and summed pass scores can produce a composite score as well as domain-specific scores.
Total scores range from 0 to 157 where higher scores indicate greater neurodevelopment.
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36, 48 and 60 months of age
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
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Naissance prématurée
Délai: Jusqu'à 5 mois (dans les 24 heures suivant la naissance, 3 à 5 mois après la randomisation)
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La prématurité est définie comme l'accouchement d'un enfant vivant avant 37 semaines complètes de gestation.
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Jusqu'à 5 mois (dans les 24 heures suivant la naissance, 3 à 5 mois après la randomisation)
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Hospitalisation pour maladie respiratoire
Délai: Jusqu'à 12 mois après la naissance
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Incidence cumulée des hospitalisations pour une maladie respiratoire au cours de la première année de vie.
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Jusqu'à 12 mois après la naissance
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OMS Pneumonie non sévère
Délai: Jusqu'à 12 mois après la naissance
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Incidence cumulée des pneumonies non graves de l'OMS (définition 2014 et définition 2013) au cours de la première année de vie.
Des cas de pneumonie sont enregistrés chaque fois que des enfants se présentent dans les structures de santé HAPIN avec des symptômes respiratoires.
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Jusqu'à 12 mois après la naissance
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OMS Pneumonie Sévère
Délai: Jusqu'à 12 mois après la naissance
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Incidence cumulée des pneumonies non graves de l'OMS (définition 2014 et définition 2013) au cours de la première année de vie.
Des cas de pneumonie sont enregistrés chaque fois que des enfants se présentent dans les structures de santé HAPIN avec des symptômes respiratoires.
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Jusqu'à 12 mois après la naissance
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WHO Pocket Book Non-severe Pneumonia
Délai: Jusqu'à 12 mois après la naissance
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Incidence cumulée des pneumonies non sévères OMS au cours de la première année de vie, telle que définie dans la deuxième édition du "Pocket book of hospital care for children" (2013).
Des cas de pneumonie sont enregistrés chaque fois que des enfants se présentent dans les structures de santé HAPIN avec des symptômes respiratoires.
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Jusqu'à 12 mois après la naissance
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WHO Pocket Book Severe Pneumonia
Délai: Jusqu'à 12 mois après la naissance
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Incidence cumulée des pneumonies sévères OMS au cours de la première année de vie, telle que définie dans la deuxième édition du "Pocket book of hospital care for children" (2013).
Des cas de pneumonie sont enregistrés chaque fois que des enfants se présentent dans les structures de santé HAPIN avec des symptômes respiratoires.
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Jusqu'à 12 mois après la naissance
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Pneumonie hypoxémique
Délai: Jusqu'à 12 mois après la naissance
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Incidence cumulée de la pneumonie hypoxémique au cours de la première année de vie.
Des cas de pneumonie sont enregistrés chaque fois que des enfants se présentent dans les structures de santé HAPIN avec des symptômes respiratoires.
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Jusqu'à 12 mois après la naissance
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Pneumonie échographique ou radiographique
Délai: Jusqu'à 12 mois après la naissance
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Incidence cumulée des pneumonies échographiques pulmonaires ou radiographiques thoraciques au cours de la première année de vie.
Des cas de pneumonie sont enregistrés chaque fois que des enfants se présentent dans les structures de santé HAPIN avec des symptômes respiratoires.
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Jusqu'à 12 mois après la naissance
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Gestational Systolic Blood Pressure
Délai: Baseline (9-20 weeks gestation), 24-28 and 32-36 weeks gestation
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Blood pressure is assessed in the pregnant women in the intervention and control arms using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team will use the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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Baseline (9-20 weeks gestation), 24-28 and 32-36 weeks gestation
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Gestational Diastolic Blood Pressure
Délai: Baseline (9-20 weeks gestation), 24-28 and 32-36 weeks gestation
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Blood pressure is assessed in the pregnant women in the intervention and control arms using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team will use the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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Baseline (9-20 weeks gestation), 24-28 and 32-36 weeks gestation
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Systolic Blood Pressure in New Mothers
Délai: 9, 12, and 18 months post-randomization
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Blood pressure is assessed in the new mothers in the intervention and control arms using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team will use the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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9, 12, and 18 months post-randomization
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Diastolic Blood Pressure in New Mothers
Délai: 9, 12, and 18 months post-randomization
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Blood pressure is assessed in the new mothers in the intervention and control arms using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team will use the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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9, 12, and 18 months post-randomization
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Diastolic Blood Pressure Among Older Adult Women
Délai: Baseline, 3, 6, 12 and 18 months post-randomization
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Diastolic blood pressure is assessed in the older adult women in the intervention and control arms using automatic sphygmomanometers (Omron HEM-907XL; Osaka, Japan).
The study team uses the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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Baseline, 3, 6, 12 and 18 months post-randomization
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Mean arterial pressure
Délai: Baseline, 3, 6, 12 and 18 months post-randomization
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Mean arterial pressure is assessed in the older adult women in the intervention and control arms using automatic sphygmomanometers (Omron HEM-907XL; Osaka, Japan).
Mean arterial pressure is calculated as DBP+(SBP-DBP)/3, where SBP=systolic blood pressure and DBP=diastolic blood pressure.
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Baseline, 3, 6, 12 and 18 months post-randomization
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Pulse pressure
Délai: Baseline, 3, 6, 12 and 18 months post-randomization
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Pulse pressure is assessed in the older adult women in the intervention and control arms using automatic sphygmomanometers (Omron HEM-907XL; Osaka, Japan).
pressure.
Pulse pressure is the difference between systolic blood pressure and diastolic blood pressure.
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Baseline, 3, 6, 12 and 18 months post-randomization
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Fetal Growth
Délai: Baseline, Gestation Week 24-28 and Gestation Week 32-36
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Pregnant women have ultrasounds at Baseline and during gestation weeks 24-28 and gestation weeks 32-36 to measure fetal growth outcomes.
Specifically, the researchers evaluate head circumference (HC), abdominal circumference (AC), femur length (FL) and estimated fetal weight (EFW) during gestation.
The researchers are comparing (i) z-scores of individual fetal growth measurements (HC, AC, FL, EFW) at the 2 growth ultrasound visits between intervention and control participants (separately at 24-28 weeks gestation and 32-36 weeks gestation); (ii) differences in proportions of the 2.5th percentiles of each of these measurements evaluated separately at 24-28 and 32-36 weeks gestation; (iii) Z-score trajectories of HC, AC, FL and EFW as a function of gestational age and intervention; and (iv) prevalence of small for gestational age (SGA) during the fetal period through birth as measured by WHO INTERGROWTH 21st standards.
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Baseline, Gestation Week 24-28 and Gestation Week 32-36
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Gestational age at birth
Délai: Up to 5 months (within 24 hours of birth, 3-5 months post randomization)
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Gestational age at birth is measured in weeks, as continuous outcome, among all live births.
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Up to 5 months (within 24 hours of birth, 3-5 months post randomization)
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Brachial artery reactivity testing (BART)
Délai: Baseline, 18 months post-randomization
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Brachial artery reactivity testing (BART) measures endothelial function via flow-mediated dilatation to reactive hyperemia following the release of arm blood-flow occlusion.
In this test, baseline artery diameter is measured, then a blood pressure cuff is inflated to induce distal arm ischemia for 5 minutes and after releasing the pressure, the post-occlusion brachial artery diameter is measured.
The ratio of post- to pre-occlusion artery diameter represents endothelial function where lower values indicate worse endothelial function.
(Peru only)
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Baseline, 18 months post-randomization
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Carotid intima-media thickness (CIMT) Among Older Adult Women
Délai: Baseline, 18 months post-randomization
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The carotid intima-media thickness test (CIMT) is used to determine the extent of carotid atherosclerotic vascular disease.
The test measures the thickness of the inner two layers of the carotid artery and can detect plaque build up prior to physical symptoms being experienced.
The carotid ultrasound will be performed with a portable ultrasound by trained sonographers.
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Baseline, 18 months post-randomization
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St. George Respiratory Questionnaire (SGRQ) Score
Délai: Baseline, 18 months post-randomization
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Adult respiratory health and well-being is assessed with the St. George Respiratory Questionnaire (SGRQ).
The SGRQ measures impaired health and perceived well-being among individuals with chronic airway disease.
The SGRQ has sections assessing symptoms, activities that cause breathlessness or are limited because of breathlessness, and the impacts of respiratory problems on employment, sense of control of health, panic, stigmatization, medication use, side effects of therapies, expectations for health and disturbances of daily life.
The questionnaire includes multiple choice, true/false and open-ended questions.
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Baseline, 18 months post-randomization
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Short Form 36 Survey (SF-36) Score Among Older Adult Women
Délai: Baseline, 18 months post-randomization
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The Short Form 36 survey (SF-36) is a standardized, preference-based 36 item questionnaire evaluating quality of life.
The survey has 8 sections (vitality, physical functioning, bodily pain, general health perceptions, physical role functioning, emotional role functioning, social role functioning, and mental health).
Possible scores range from 0 (lowest quality of life) to 100 (highest quality of life).
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Baseline, 18 months post-randomization
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Weight
Délai: 24, 36, 48 and 60 months of age of the child
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Weight is measured in kilograms (kg).
Weight in new mothers in Rwanda is measured when the child is 24 months old.
For new mothers in Guatemala weight is measured when the child is 24 and 36 months old.
In older adult women, weight is measured when the child is 24 months old.
Weight is measured in children at 24, 36, 48 and 60 months of age.
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24, 36, 48 and 60 months of age of the child
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Body Mass Index (BMI)
Délai: 24, 36, 48 and 60 months of age of the child
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BMI is calculated as weight in kilograms divided by height in meters (m) squared (kg/m^2).
BMI in new mothers in Rwanda is calculated from height and weight measurements obtained when the child is 24 months old.
For new mothers in Guatemala BMI is calculated from height and weight measurements obtained when the child is 24 and 36 months old.
In older adult women, BMI is calculated from height and weight measurements obtained when the child is 24 months old.
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24, 36, 48 and 60 months of age of the child
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Height
Délai: 24 and 36 months of age of the child
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Height is measured in meters.
Height in new mothers in Rwanda is measured when the child is 24 months old.
For new mothers in Guatemala height is measured when the child is 24 and 36 months old.
In older adult women, height is measured when the child is 24-months old.
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24 and 36 months of age of the child
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Child Blood Pressure
Délai: 24 (Rwanda only) and 60 months of age
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Blood pressure is assessed in the children using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team uses the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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24 (Rwanda only) and 60 months of age
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Child Linear Growth
Délai: Birth (3-5 months post-randomization), and 3, 6, 9, and 12 months of age
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Linear growth of children is assessed in centimeters at birth and quarterly thereafter, until the child is 12 months old.
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Birth (3-5 months post-randomization), and 3, 6, 9, and 12 months of age
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Caregiver Reported Early Childhood Development Instrument (CREDI) Score
Délai: 3 and 12 months of age
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Child development is assessed with the Caregiver Reported Early Childhood Development Instrument (CREDI).
The CREDI is a population-level measure of early childhood development (ECD) for children from 0-3 years of age.
The CREDI assesses 4 domains of child development: 1) motor (fine and gross motor), 2) language (expressive and receptive language), 3) cognitive (executive function, problem solving and reasoning, and pre-academic knowledge), and 4) social-emotional (emotional and behavioral self-regulation, emotional knowledge, and social competence).
The CREDI long form consists of up to 108 items and the number of questions answered depends on the age of the child.
Responses of "yes" are coded as 1 and "no" is coded as 0; certain items are reverse coded.
Both domain-specific and overall z-scores are calculated.
Total raw scores increase by age (with developmental progression), and higher scores indicate increased development.
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3 and 12 months of age
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Autres mesures de résultats
Mesure des résultats |
Description de la mesure |
Délai |
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Avortement spontané
Délai: Ligne de base jusqu'à 20 semaines de gestation
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Mort fœtale avant 19 semaines 6 jours.
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Ligne de base jusqu'à 20 semaines de gestation
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Accouchement prématuré précoce
Délai: Naissance
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Naissances à moins de 34 semaines de gestation révolues, parmi toutes les naissances vivantes.
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Naissance
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Mortinaissance
Délai: Jusqu'à la naissance
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Toute mort fœtale survenant à ou après 20 semaines de gestation OU indiquée sur le formulaire d'événement indésirable grave OU sur le formulaire d'antécédents médicaux de la femme enceinte OU sur le formulaire d'autopsie verbale.
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Jusqu'à la naissance
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Décès néonatal
Délai: Naissance jusqu'à 28 jours
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Décès entre la naissance et 28 jours.
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Naissance jusqu'à 28 jours
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Fonction pulmonaire de l'enfant
Délai: 36, 48 et 60 mois
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Les mesures de la fonction pulmonaire seront effectuées à l'aide de la technique d'oscillation forcée (FOT) avec l'appareil Tremoflo C-100 avec embouts jetables.
FOT est une technique qui permet d'identifier les changements précoces dans les voies respiratoires.
Le dispositif FOT mesure la relation entre les ondes de pression appliquées de l'extérieur et le flux d'air résultant pour mesurer l'impédance respiratoire.
Les valeurs produites à hautes fréquences correspondent aux voies respiratoires proximales et larges, et les valeurs produites à basses fréquences correspondent aux voies respiratoires distales et petites.
Cette mesure sera effectuée chez des enfants au Guatemala.
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36, 48 et 60 mois
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Modification des biomarqueurs urinaires
Délai: Au départ, 3, 6, 9, 12 et 18 mois après la randomisation et 24 mois de l'enfant
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Des biomarqueurs d'exposition multiple seront mesurés : 3-OH Cotinine, 4-(méthylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), lévoglucosan, 8OH-désoxyguanosine (8OHdG) et métabolites de produits chimiques organiques volatils (COV). .
Les biomarqueurs d'exposition (en particulier pour les enfants dont l'urine peut être limitée) seront priorisés comme suit : biomarqueurs d'hydrocarbures aromatiques polycycliques (HAP), lévoglucosane, biomarqueurs de produits chimiques organiques volatils (COV), métaux lourds et biomarqueurs liés au tabac.
Les biomarqueurs urinaires seront mesurés chez les femmes enceintes au départ, entre 24 et 28 semaines de gestation et entre 32 et 36 semaines de gestation, et chez les nouvelles mères lorsque l'enfant a 24 mois.
Les biomarqueurs seront mesurés chez les femmes adultes plus âgées au départ, 3, 6, 9, 12 et 18 mois après la randomisation.
Les biomarqueurs seront mesurés chez les enfants de 3, 6, 12 et 24 mois.
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Au départ, 3, 6, 9, 12 et 18 mois après la randomisation et 24 mois de l'enfant
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Modification des biomarqueurs des taches de sang séché (DBS)
Délai: Au départ, 3, 6, 9, 12 et 18 mois après la randomisation et à 24 mois de l'enfant
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Les principaux biomarqueurs à mesurer à partir des gouttes de sang séché sont : les marqueurs d'inflammation, les marqueurs endothéliaux des maladies cardiovasculaires, les marqueurs de stress oxydatif, l'Hb, l'HbA1C, les anticorps antigènes associés à la tumeur, le cytochrome P450, l'antigène associé à la tumeur (TAA) p53, les lipides, métabolomique, MiARN, métaux lourds.
Les biomarqueurs DBS seront mesurés chez les femmes enceintes au départ, entre 24 et 28 semaines de gestation et entre 32 et 36 semaines de gestation, et chez les nouvelles mères lorsque l'enfant a 24 mois.
Les biomarqueurs DBS seront mesurés chez les femmes adultes plus âgées au départ, 3, 6, 9, 12 et 18 mois après la randomisation.
Les biomarqueurs DBS seront mesurés chez les enfants de 3, 6, 12 et 24 mois.
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Au départ, 3, 6, 9, 12 et 18 mois après la randomisation et à 24 mois de l'enfant
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Échelle de stress perçu par la mère (PSS)
Délai: 9 à 18 mois après la randomisation (3 à 12 mois de l'enfant)
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L'échelle de stress perçu de Cohen (PPS) en 10 éléments évalue la façon dont un individu évalue les événements de sa vie comme étant stressants (par exemple : « Au cours du dernier mois, à quelle fréquence avez-vous eu l'impression que les difficultés s'accumulaient si haut que vous ne pouviez pas les surmonter ? » ) (Cohen, 1983).
Les réponses au niveau de Likert allaient de 0 (jamais) à 4 (très souvent), ce qui signifie qu’un score PPS élevé entraînerait un niveau élevé de stress perçu.
Un PPS en espagnol créé et testé et jugé valide et fiable (Vallijo et al., 2018).
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9 à 18 mois après la randomisation (3 à 12 mois de l'enfant)
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Accouchement prématuré
Délai: Naissance
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Y compris les naissances prématurées et les mortinaissances.
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Naissance
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Insécurité alimentaire des ménages
Délai: Base de référence, 18 mois après la randomisation
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L'insécurité alimentaire des ménages sera mesurée à l'aide de l'échelle d'expérience en matière de sécurité alimentaire (FIES), développée et validée par l'Organisation pour l'alimentation et l'agriculture (FAO).
Le module FIES comprend huit questions, chacune avec des options de réponse oui/non, sur l'accès du ménage à une nourriture adéquate, et est destiné à mesurer trois domaines d'insécurité alimentaire : l'incertitude/l'anxiété, la quantité et la qualité de la nourriture.
Chaque question prend des valeurs de 0/1, qui sont additionnées pour un score total possible de 0 à 8.
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Base de référence, 18 mois après la randomisation
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Diversité alimentaire - femmes
Délai: De référence à 18 mois après la randomisation
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La diversité alimentaire des femmes sera mesurée à l'aide du questionnaire Minimum Dietary Diversity - Women (MDD-W) de la FAO et de FHI 360, qui utilise un format de rappel ouvert pour collecter des données sur les aliments et les boissons consommés par le répondant au cours de la journée et de la nuit précédentes. .
Les réponses seront classées en dix groupes alimentaires et les femmes qui déclarent consommer cinq groupes alimentaires ou plus sur dix seront classées comme atteignant une diversité alimentaire minimale.
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De référence à 18 mois après la randomisation
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Concentration d'hémoglobine (Hb) / anémie - femmes
Délai: Base de référence, 3 et 5 mois après la randomisation
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L'hémoglobine sera mesurée à partir d'une seule goutte de sang capillaire obtenue par piqûre au doigt, à l'aide du dispositif au point de service HemoCue® Hb 201system (HemoCue® AB).
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Base de référence, 3 et 5 mois après la randomisation
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Concentration d'hémoglobine (Hb) / anémie - nourrissons
Délai: 12 et 18 mois après la randomisation (6 et 12 mois)
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L'hémoglobine sera mesurée à partir d'une seule goutte de sang capillaire obtenue par piqûre au doigt, à l'aide du dispositif au point de service HemoCue® Hb 201system (HemoCue® AB).
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12 et 18 mois après la randomisation (6 et 12 mois)
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Change in fine particulate matter (PM2.5) exposure
Délai: Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Personal monitoring equipment is used to assess exposure to fine particulate matter (PM2.5) over a 24-hour period in intervention and control participants (pregnant women, older adult women, and children).
Exposure for pregnant women is measured at baseline, 24-28 weeks gestation, 32-36 weeks gestation, and in Guatemala and India, when the child is 24 months old.
Exposure for the child is measured at 3, 6, 12, 24, 36, 48 and 60 months of age.
Exposure for the older adult women is measured at baseline, 3, 6, 12 and 18 months post-randomization, and in Guatemala and India, when the child is 24 months old.
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Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Change in Carbon monoxide (CO) exposure
Délai: Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Personal monitoring equipment is used to assess exposure to carbon monoxide (CO) over a 24-hour period in intervention and control participants (pregnant women, older adult women, and children).
Exposure for pregnant women is measured at baseline, 24-28 weeks gestation, 32-36 weeks gestation, and in Guatemala and India, when the child is 24 months old.
Exposure for the child is measured at 3, 6, 12, 24, 36, 48 and 60 months of age.
Exposure for the older adult women is measured at baseline, 3, 6, 12 and 18 months post-randomization, and in Guatemala and India, when the child is 24 months old.
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Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Change in Black carbon (BC) exposure
Délai: Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Personal monitoring equipment is used to assess exposure to black carbon (BC) over a 24-hour period in intervention and control participants (pregnant women, older adult women, and children).
Exposure for pregnant women is measured at baseline, 24-28 weeks gestation, 32-36 weeks gestation, and in Guatemala and India, when the child is 24 months old.
Exposure for the child is measured at 3, 6, 12, 24, 36, 48 and 60 months of age.
Exposure for the older adult women is measured at baseline, 3, 6, 12 and 18 months post-randomization, and in Guatemala and India, when the child is 24 months old.
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Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Messenger Ribonucleic Acid (mRNA) Expression and microRNA in Older Adult Women
Délai: Baseline, 18 months post-randomization
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Two buccal cell scrapes will be collected by gently scraping the buccal mucosa on both sides of the mouth with a small plastic collection spoon.
Nasal turbinate brush samples can be collected using a soft cytobrush on each turbinate.
Collection is gentle and causes no discomfort to study participants.
Both samples will be processed in the laboratory according to procedures detailed in the protocol.
This will occur in the older adult women in an NCI substudy.
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Baseline, 18 months post-randomization
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Microbiome Operational Taxonomic Units (OTUs) in Older Adult Women
Délai: Baseline, 18 months post-randomization
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For the oral rinse, participants will vigorously rinse their mouth and the rinsates are collected in a centrifuge tube.
The tube is centrifuged and the pellet and supernatant are removed to separate cryovials, labeled and frozen.
This will occur in the older adult women in an NCI substudy.
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Baseline, 18 months post-randomization
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Epigenetics (DNA methylation) in Older Adult Women
Délai: Baseline, 18 months post-randomization
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Two buccal cell scrapes will be collected by gently scraping the buccal mucosa on both sides of the mouth with a small plastic collection spoon.
A 5-mL venous blood sample will be collected in an ethylenediaminetetraacetic acid (EDTA) vacutainer tube by standard clinical venipuncture of a cubital vein.
Both samples will be transported and processed in the laboratory according to procedures detailed in the protocol.
This will occur in the older adult women in an NCI substudy.
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Baseline, 18 months post-randomization
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Metabolomics and MicroRNA in Older Adult Women
Délai: Baseline, 18 months post-randomization
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A 5-mL venous blood sample will be collected in an EDTA vacutainer tube by standard clinical venipuncture of a cubital vein.
The sample will be transported and processed in the laboratory according to procedures detailed in the protocol.
This will occur in the older adult women in an NCI substudy.
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Baseline, 18 months post-randomization
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Dietary diversity - infants
Délai: 9, 12, 15 and 18 months post-randomization (3, 6, 9, and 12 months of age)
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Minimum dietary diversity for children will be measured using the World Health Organization (WHO) infant and young child feeding questionnaire.
The questionnaire uses a combination of open and closed recall and asks caregivers to report on foods and beverages consumed by the infant or young child during the previous day and night.
Responses will be categorized into eight food groups and infants who consumed five or more out of ten eight food groups will be categorized as achieving minimum dietary diversity.
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9, 12, 15 and 18 months post-randomization (3, 6, 9, and 12 months of age)
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Carotid intima-media thickness (CIMT) Among Older Adult Women During Extended Follow-up
Délai: 24 months of age of the child
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The carotid intima-media thickness test (CIMT) is used to determine the extent of carotid atherosclerotic vascular disease.
The test measures the thickness of the inner two layers of the carotid artery and can detect plaque build up prior to physical symptoms being experienced.
The carotid ultrasound will be performed with a portable ultrasound by trained sonographers.
This outcome is only assessed in Guatemala during the extended follow-up period (after the birth of the household child).
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24 months of age of the child
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Reported Diarrhea in Children
Délai: Up to 12 months after birth
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Reported diarrhea will be extracted from the Monthly Child Health Status Visit case report form.
Each month, the child's caretaker will be administered a survey to obtain information on whether the child under 1 year of age (the HAPIN study index child) or any other child in the home under 5 has experienced WHO-defined diarrhea (defined as three or more loose stools that can take the shape of a container within a 24-hour period) in the past 7 days.
Persistent diarrhea will be defined as 14 or more continuous days of diarrhea.
The presence of blood in the stool will also be noted as an indicator of severity.
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Up to 12 months after birth
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Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Thomas Clasen, PhD, Emory University
- Chercheur principal: Jennifer Peel, PhD, Colorado State University
- Chercheur principal: William Checkley, MD PhD, Johns Hopkins School of Medicine
Publications et liens utiles
Publications générales
- Kearns KA, Naeher LP, McCracken JP, Boyd Barr D, Saikawa E, Hengstermann M, Mollinedo E, Panuwet P, Yakimavets V, Lee GE, Thompson LM. Estimating personal exposures to household air pollution and plastic garbage burning among adolescent girls in Jalapa, Guatemala. Chemosphere. 2024 Jan;348:140705. doi: 10.1016/j.chemosphere.2023.140705. Epub 2023 Nov 17.
- Younger A, Ye W, Alkon A, Harknett K, Kirby MA, Elon L, Lovvorn AE, Wang J, Diaz-Artiga A, McCracken JP, Castanaza Gonzalez A, Alarcon LM, Mukeshimana A, Rosa G, Chiang M, Balakrishnan K, Garg SS, Pillarisetti A, Piedrahita R, Johnson MA, Craik R, Papageorghiou AT, Toenjes A, Williams KN, Underhill LJ, Hartinger SM, Nicolaou L, Chang HH, Naeher LP, Rosenthal J, Checkley W, Peel JL, Clasen TF, Thompson LM; Household Air Pollution Intervention Network (HAPIN) Investigators. Effects of a liquefied petroleum gas stove intervention on stillbirth, congenital anomalies and neonatal mortality: A multi-country household air pollution intervention network trial. Environ Pollut. 2024 Mar 15;345:123414. doi: 10.1016/j.envpol.2024.123414. Epub 2024 Jan 27.
- Pillarisetti A, Ye W, Balakrishnan K, Rosa G, Diaz-Artiga A, Underhill LJ, Steenland K, Peel JL, Kirby MA, McCracken J, Waller L, Chang H, Wang J, Dusabimana E, Ndagijimana F, Sambandam S, Mukhopadhyay K, Kearns KA, Campbell D, Kremer J, Rosenthal J, Ghosh A, Clark M, Checkley W, Clasen T, Naeher L, Piedrahita R, Johnson M. Post-birth exposure contrasts for children during the Household Air Pollution Intervention Network randomized controlled trial. medRxiv [Preprint]. 2023 Jul 6:2023.07.04.23292226. doi: 10.1101/2023.07.04.23292226.
- Simkovich SM, Hossen S, McCollum ED, Toenjes AK, McCracken JP, Thompson LM, Castanaza A, Diaz A, Rosa G, Kirby MA, Mukeshimana A, Myers R, Lenzen PM, Craik R, Jabbarzadeh S, Elon L, Garg SS, Balakrishnan K, Thangavel G, Peel JL, Clasen TF, Davila-Roman VG, Papageorghiou AT, de las Fuentes L, Checkley W; HAPIN Investigators. Lung Ultrasound Protocol and Quality Control of Image Interpretation Using an Adjudication Panel in the Household Air Pollution Intervention Network (HAPIN) Trial. Ultrasound Med Biol. 2023 May;49(5):1194-1201. doi: 10.1016/j.ultrasmedbio.2023.01.005. Epub 2023 Feb 19.
- Williams KN, Quinn A, North H, Wang J, Pillarisetti A, Thompson LM, Diaz-Artiga A, Balakrishnan K, Thangavel G, Rosa G, Ndagijimana F, Underhill LJ, Kirby MA, Puzzolo E, Hossen S, Waller LA, Peel JL, Rosenthal JP, Clasen TF, Harvey SA, Checkley W; HAPIN Investigators. Fidelity and adherence to a liquefied petroleum gas stove and fuel intervention: The multi-country Household Air Pollution Intervention Network (HAPIN) trial. Environ Int. 2023 Sep;179:108160. doi: 10.1016/j.envint.2023.108160. Epub 2023 Aug 19.
- Younger A, Alkon A, Harknett K, Kirby MA, Elon L, Lovvorn AE, Wang J, Ye W, Diaz-Artiga A, McCracken JP, Castanaza Gonzalez A, Monroy Alarcon L, Mukeshimana A, Rosa G, Chiang M, Balakrishnan K, Garg SS, Pillarisetti A, Piedrahita R, Johnson M, Craik R, Papageorghiou AT, Toenjes A, Quinn A, Williams KN, Underhill L, Chang HH, Naeher LP, Rosenthal J, Checkley W, Peel JL, Clasen TF, Thompson LM; HAPIN investigators. Effects of a LPG stove and fuel intervention on adverse maternal outcomes: A multi-country randomized controlled trial conducted by the Household Air Pollution Intervention Network (HAPIN). Environ Int. 2023 Aug;178:108059. doi: 10.1016/j.envint.2023.108059. Epub 2023 Jun 28.
- Checkley W, Hossen S, Rosa G, Thompson LM, McCracken JP, Diaz-Artiga A, Balakrishnan K, Simkovich SM, Underhill LJ, Nicolaou L, Hartinger SM, Davila-Roman VG, Kirby MA, Clasen TF, Rosenthal J, Peel JL, On Behalf Of Household Air Pollution Intervention Network Hapin Investigators. Facing the Realities of Pragmatic Design Choices in Environmental Health Studies: Experiences from the Household Air Pollution Intervention Network Trial. Int J Environ Res Public Health. 2022 Mar 23;19(7):3790. doi: 10.3390/ijerph19073790.
- Hennessee I, Kirby MA, Misago X, Mupfasoni J, Clasen T, Kitron U, Rosenthal JP, Hakizimana E. Assessing the Effects of Cooking Fuels on Anopheles Mosquito Behavior: An Experimental Study in Rural Rwanda. Am J Trop Med Hyg. 2022 Feb 21;106(4):1196-1208. doi: 10.4269/ajtmh.21-0997. Print 2022 Apr 6.
- Johnson M, Pillarisetti A, Piedrahita R, Balakrishnan K, Peel JL, Steenland K, Underhill LJ, Rosa G, Kirby MA, Diaz-Artiga A, McCracken J, Clark ML, Waller L, Chang HH, Wang J, Dusabimana E, Ndagijimana F, Sambandam S, Mukhopadhyay K, Kearns KA, Campbell D, Kremer J, Rosenthal JP, Checkley W, Clasen T, Naeher L; the Household Air Pollution Intervention Network (HAPIN) Trial Investigators. Exposure Contrasts of Pregnant Women during the Household Air Pollution Intervention Network Randomized Controlled Trial. Environ Health Perspect. 2022 Sep;130(9):97005. doi: 10.1289/EHP10295. Epub 2022 Sep 16.
- Kaufman JD. Invited Perspective: A Critical Part of a Real-World Environmental Health Trial Is to Demonstrate That the Intervention Reduced Exposure. Environ Health Perspect. 2022 Sep;130(9):91304. doi: 10.1289/EHP11697. Epub 2022 Sep 16. No abstract available.
- Rajamani KD, Sambandam S, Mukhopadhyay K, Puttaswamy N, Thangavel G, Natesan D, Ramasamy R, Sendhil S, Natarajan A, Aravindalochan V, Pillarisetti A, Johnson M, Rosenthal J, Steenland K, Piedhrahita R, Peel J, Clark ML, Boyd Barr D, Rajkumar S, Young B, Jabbarzadeh S, Rosa G, Kirby M, Underhill LJ, Diaz-Artiga A, Lovvorn A, Checkley W, Clasen T, Balakrishnan K. Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India. J Vis Exp. 2022 Dec 23;(190). doi: 10.3791/64144.
- Ye W, Thangavel G, Pillarisetti A, Steenland K, Peel JL, Balakrishnan K, Jabbarzadeh S, Checkley W, Clasen T; HAPIN Investigators. Association between personal exposure to household air pollution and gestational blood pressure among women using solid cooking fuels in rural Tamil Nadu, India. Environ Res. 2022 May 15;208:112756. doi: 10.1016/j.envres.2022.112756. Epub 2022 Jan 20.
- Ye W, Steenland K, Quinn A, Liao J, Balakrishnan K, Rosa G, Ndagijimana F, Ntivuguruzwa JD, Thompson LM, McCracken JP, Diaz-Artiga A, Rosenthal JP, Papageorghiou A, Davila-Roman VG, Pillarisetti A, Johnson M, Wang J, Nicolaou L, Checkley W, Peel JL, Clasen TF; Household Air Pollution Intervention Network (HAPIN) trial Investigators. Effects of a Liquefied Petroleum Gas Stove Intervention on Gestational Blood Pressure: Intention-to-Treat and Exposure-Response Findings From the HAPIN Trial. Hypertension. 2022 Aug;79(8):1887-1898. doi: 10.1161/HYPERTENSIONAHA.122.19362. Epub 2022 Jun 16.
- Hengstermann M, Diaz-Artiga A, Otzoy-Sucuc R, Laura Maria Ruiz-Aguilar A, Thompson LM; HAPIN Investigators. Developing Visual Messages to Support Liquefied Petroleum Gas Use in Intervention Homes in the Household Air Pollution Intervention Network (HAPIN) Trial in Rural Guatemala. Health Educ Behav. 2021 Oct;48(5):651-669. doi: 10.1177/1090198121996280. Epub 2021 Mar 18.
- Liao J, Kirby MA, Pillarisetti A, Piedrahita R, Balakrishnan K, Sambandam S, Mukhopadhyay K, Ye W, Rosa G, Majorin F, Dusabimana E, Ndagijimana F, McCracken JP, Mollinedo E, de Leon O, Diaz-Artiga A, Thompson LM, Kearns KA, Naeher L, Rosenthal J, Clark ML, Steenland K, Waller LA, Checkley W, Peel JL, Clasen T, Johnson M; HAPIN Investigators. LPG stove and fuel intervention among pregnant women reduce fine particle air pollution exposures in three countries: Pilot results from the HAPIN trial. Environ Pollut. 2021 Dec 15;291:118198. doi: 10.1016/j.envpol.2021.118198. Epub 2021 Sep 21.
- Quinn AK, Williams KN, Thompson LM, Harvey SA, Piedrahita R, Wang J, Quinn C, Pillarisetti A, McCracken JP, Rosenthal JP, Kirby MA, Diaz Artiga A, Thangavel G, Rosa G, Miranda JJ, Checkley W, Peel JL, Clasen TF. Fidelity and Adherence to a Liquefied Petroleum Gas Stove and Fuel Intervention during Gestation: The Multi-Country Household Air Pollution Intervention Network (HAPIN) Randomized Controlled Trial. Int J Environ Res Public Health. 2021 Nov 29;18(23):12592. doi: 10.3390/ijerph182312592.
- Simkovich SM, Underhill LJ, Kirby MA, Crocker ME, Goodman D, McCracken JP, Thompson LM, Diaz-Artiga A, Castanaza-Gonzalez A, Garg SS, Balakrishnan K, Thangavel G, Rosa G, Peel JL, Clasen TF, McCollum ED, Checkley W; HAPIN Investigators. Resources and Geographic Access to Care for Severe Pediatric Pneumonia in Four Resource-limited Settings. Am J Respir Crit Care Med. 2022 Jan 15;205(2):183-197. doi: 10.1164/rccm.202104-1013OC.
- Barr DB, Puttaswamy N, Jaacks LM, Steenland K, Rajkumar S, Gupton S, Ryan PB, Balakrishnan K, Peel JL, Checkley W, Clasen T, Clark ML; (HAPIN Investigative Team). Design and Rationale of the Biomarker Center of the Household Air Pollution Intervention Network (HAPIN) Trial. Environ Health Perspect. 2020 Apr;128(4):47010. doi: 10.1289/EHP5751. Epub 2020 Apr 29.
- Burrowes VJ, Piedrahita R, Pillarisetti A, Underhill LJ, Fandino-Del-Rio M, Johnson M, Kephart JL, Hartinger SM, Steenland K, Naeher L, Kearns K, Peel JL, Clark ML, Checkley W; HAPIN Investigators. Comparison of next-generation portable pollution monitors to measure exposure to PM2.5 from household air pollution in Puno, Peru. Indoor Air. 2020 May;30(3):445-458. doi: 10.1111/ina.12638. Epub 2020 Jan 23.
- Clasen T, Checkley W, Peel JL, Balakrishnan K, McCracken JP, Rosa G, Thompson LM, Barr DB, Clark ML, Johnson MA, Waller LA, Jaacks LM, Steenland K, Miranda JJ, Chang HH, Kim DY, McCollum ED, Davila-Roman VG, Papageorghiou A, Rosenthal JP; HAPIN Investigators. Design and Rationale of the HAPIN Study: A Multicountry Randomized Controlled Trial to Assess the Effect of Liquefied Petroleum Gas Stove and Continuous Fuel Distribution. Environ Health Perspect. 2020 Apr;128(4):47008. doi: 10.1289/EHP6407. Epub 2020 Apr 29.
- Crocker ME, Hossen S, Goodman D, Simkovich SM, Kirby M, Thompson LM, Rosa G, Garg SS, Thangavel G, McCollum ED, Peel J, Clasen T, Checkley W; HAPIN Investigators. Effects of high altitude on respiratory rate and oxygen saturation reference values in healthy infants and children younger than 2 years in four countries: a cross-sectional study. Lancet Glob Health. 2020 Mar;8(3):e362-e373. doi: 10.1016/S2214-109X(19)30543-1.
- Johnson MA, Steenland K, Piedrahita R, Clark ML, Pillarisetti A, Balakrishnan K, Peel JL, Naeher LP, Liao J, Wilson D, Sarnat J, Underhill LJ, Burrowes V, McCracken JP, Rosa G, Rosenthal J, Sambandam S, de Leon O, Kirby MA, Kearns K, Checkley W, Clasen T; HAPIN Investigators. Air Pollutant Exposure and Stove Use Assessment Methods for the Household Air Pollution Intervention Network (HAPIN) Trial. Environ Health Perspect. 2020 Apr;128(4):47009. doi: 10.1289/EHP6422. Epub 2020 Apr 29.
- Puttaswamy N, Saidam S, Rajendran G, Arumugam K, Gupton S, Williams EW, Johnson CL, Panuwet P, Rajkumar S, Clark ML, Peel JL, Checkley W, Clasen T, Balakrishnan K, Barr DB. Cross-validation of biomonitoring methods for polycyclic aromatic hydrocarbon metabolites in human urine: Results from the formative phase of the Household Air Pollution Intervention Network (HAPIN) trial in India. J Chromatogr B Analyt Technol Biomed Life Sci. 2020 Oct 1;1154:122284. doi: 10.1016/j.jchromb.2020.122284. Epub 2020 Jul 29.
- Sambandam S, Mukhopadhyay K, Sendhil S, Ye W, Pillarisetti A, Thangavel G, Natesan D, Ramasamy R, Natarajan A, Aravindalochanan V, Vinayagamoorthi A, Sivavadivel S, Uma Maheswari R, Balakrishnan L, Gayatri S, Nargunanathan S, Madhavan S, Puttaswamy N, Garg SS, Quinn A, Rosenthal J, Johnson M, Liao J, Steenland K, Piedhrahita R, Peel J, Checkley W, Clasen T, Balakrishnan K. Exposure contrasts associated with a liquefied petroleum gas (LPG) intervention at potential field sites for the multi-country household air pollution intervention network (HAPIN) trial in India: results from pilot phase activities in rural Tamil Nadu. BMC Public Health. 2020 Nov 26;20(1):1799. doi: 10.1186/s12889-020-09865-1.
- Simkovich SM, Underhill LJ, Kirby MA, Goodman D, Crocker ME, Hossen S, McCracken JP, de Leon O, Thompson LM, Garg SS, Balakrishnan K, Thangavel G, Rosa G, Peel JL, Clasen TF, McCollum ED, Checkley W. Design and conduct of facility-based surveillance for severe childhood pneumonia in the Household Air Pollution Intervention Network (HAPIN) trial. ERJ Open Res. 2020 Mar 23;6(1):00308-2019. doi: 10.1183/23120541.00308-2019. eCollection 2020 Jan.
- Williams KN, Thompson LM, Sakas Z, Hengstermann M, Quinn A, Diaz-Artiga A, Thangavel G, Puzzolo E, Rosa G, Balakrishnan K, Peel J, Checkley W, Clasen TF, Miranda JJ, Rosenthal JP, Harvey SA; Household Air Pollution Intervention Network (HAPIN) trial Investigators; HAPIN Investigators. Designing a comprehensive behaviour change intervention to promote and monitor exclusive use of liquefied petroleum gas stoves for the Household Air Pollution Intervention Network (HAPIN) trial. BMJ Open. 2020 Sep 29;10(9):e037761. doi: 10.1136/bmjopen-2020-037761.
- Wilson DL, Williams KN, Pillarisetti A. 2020. An Integrated Sensor Data Logging, Survey, and Analytics Platform for Field Research and Its Application in HAPIN, a Multi-Center Household Energy Intervention Trial. Sustainability. 2020; 12 (5): 1805. doi:10.3390/su12051805.
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- IRB00089799
- 1UM1HL134590-01 (Subvention/contrat des NIH des États-Unis)
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