Intervention Study on the Health Impact of Air Filters in Chinese Adults

Status Completed

Clinical Trial Summary

This study aimed to evaluate whether a short-term indoor air purifier intervention improves cardiopulmonary health based on a randomized double-blind crossover trial

Clinical Trial Description

We conducted a randomized double-blind crossover trial among 35 healthy college students in Shanghai, China in 2014. These students lived in dormitories that were randomized into two groups and alternated the use of true or sham air purifiers for 48 hours with a 2-week wash-out interval.All participants and research staff were blinded to the group assignment. We requested all participants to stay in their dormitory room with the windows/doors closed throughout each 48-hour intervention period. We delivered foods and drinks to each room during the intervention period. All interventions started at 8 a.m. to avoid issues related to diurnal variation. We evaluated health endpoints and drew blood immediately after the completion of each 48-hour intervention. We measured 14 circulating biomarkers of inflammation, coagulation and vasoconstriction, lung function, blood pressure (BP), and fractional exhaled nitric oxide (FeNO). ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02239744
Study type	Interventional
Source	Fudan University
Contact
Status	Completed
Phase	N/A
Start date	September 2014
Completion date	November 2014

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT03995979` - Inflammation and Protein Restriction	N/A
Completed	`NCT03255187` - Effect of Dietary Supplemental Fish Oil in Alleviating Health Hazards Associated With Air Pollution	N/A
Completed	`NCT04507867` - Effect of a NSS to Reduce Complications in Patients With Covid-19 and Comorbidities in Stage III	N/A
Completed	`NCT03577223` - Egg Effects on the Immunomodulatory Properties of HDL	N/A
Completed	`NCT04383561` - Relationship Between LRG and Periodontal Disease	N/A
Active, not recruiting	`NCT03622632` - Pilot Study to Measure Uric Acid in Traumatized Patients: Determinants and Prognostic Association
Completed	`NCT06216015` - Exercise Training and Kidney Transplantation	N/A
Completed	`NCT04856748` - Nomogram to Diagnose Prostatic Inflammation (PIN) in Men With Lower Urinary Tract Symptoms
Completed	`NCT05529693` - Efficacy of a Probiotic Strain on Level of Markers of Inflammation in an Elderly Population	N/A
Recruiting	`NCT05415397` - Treating Immuno-metabolic Depression With Anti-inflammatory Drugs	Phase 3
Recruiting	`NCT05670301` - Flemish Joint Effort for Biomarker pRofiling in Inflammatory Systemic Diseases	N/A
Recruiting	`NCT05775731` - Markers of Inflammation and of the Pro-thrombotic State in Hospital Shift and Day Workers
Recruiting	`NCT04543877` - WHNRC (Western Human Nutrition Research Center) Fiber Intervention Study	Early Phase 1
Completed	`NCT03859934` - Metabolic Effects of Melatonin Treatment	Phase 1
Completed	`NCT03429920` - Effect of Fermented Soy Based Product on Cardiometabolic Risk Factors	N/A
Completed	`NCT06065241` - Quantifiably Determine if the Botanical Formulation, LLP-01, Has a Significant Clinical Effect on Proteomic Inflammatory Biomarkers and Epigenetic Changes in Healthy, Older Individuals.	N/A
Completed	`NCT05864352` - The Role of Dietary Titanium Dioxide on the Human Gut Microbiome and Health
Completed	`NCT03318731` - Efficacy and Safety of Fenugreek Extract on Markers of Muscle Damage and Inflammation in Untrained Males	N/A
Not yet recruiting	`NCT06134076` - Comparing Effects of Fermented and Unfermented Pulses and Gut Microbiota	N/A
Not yet recruiting	`NCT06159543` - The Effects of Fresh Mango Consumption on Cardiometabolic Outcomes in Free-living Individuals With Prediabetes	N/A