Ignite Creation Date:
2025-12-24 @ 11:38 PM
Ignite Modification Date:
2025-12-25 @ 9:29 PM
Study NCT ID:
NCT07206251
Status:
COMPLETED
Last Update Posted:
2025-10-03
First Post:
2025-03-20
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
The Effect of the Window Films on Cognition, Perception, and Health
Sponsor:
Maastricht University Medical Center
Organization:
Study Overview
Official Title:
The Effect of the Window Films on Cognition, Perception, and Health
Status:
COMPLETED
Status Verified Date:
2025-03
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
FOIL
Brief Summary:
To enable the Netherlands to reach the 2030 carbon emission goals, older homes need to be renovated to become more energy-efficient and comfortable. This project aims to provide shallow renovations of window films. These shallow renovations can be completed in 1-2 days and cost significantly less than a deep renovation. We would like to investigate how such window films can affect humans (low-e film and thermochromatic) if applicated in real life.
Detailed Description:
This study consists of one screening session (1.5 hours) and two testing sessions (5.5 hours each)
Screening session:
In the screening session, participants will fill in a questionnaire about their general information as well as a medical questionnaire that asks about, current health status, lifestyle, morningness-eveningness chronotype, use of contraceptives, and sleep quality. This data is necessary to assess the eligibility to participate and to analyse the collected data with consideration of possible effect of lifestyle of the participant.
Testing sessions:
Subjects will be exposed to 2 different conditions (window film vs. no window film) in two days (11:15- 16:45) to assess the window film(s) influence on visual and temperature comfort, sensation and perception. The exposure rooms are low-e film room (film 1) or a thermochromic film room (film 2), compared with no film room (control). These films will be applied to windows. Participants will perform 2 cognitive tests, 2 vision tasks and fill in questionanires at set times. They will also wear the sensors mentiond in Part 3 section 2 (wearable sensors) to measure their physiological parametersm suchs as skin temperature, heart rate and physical activity. Lastly, every hour they will provide a saliva sample by spitting into a tube to measure the cortisol level in the saliva. Saliva is collected to measure cortisol changes caused by the environment. The participants only saliva is collected by a cotton swap from a saliva collection tube (salivattes). The samples are then stored immediately in a -20 freezer, after it is transported to the storage lab they will be centrifuged for 2 mins at 1000g and then stored in a
-80 freezer for the duration of the study until analysis. The storage room is secured and only the research team can assess the samples. When they are to be analyzed for cortisol, the sample is defrosted and tested by a spectrophotometer to quantify the amount of cortisol. The sample is then discarded after this analysis.
Screening session:
In the screening session, participants will fill in a questionnaire about their general information as well as a medical questionnaire that asks about, current health status, lifestyle, morningness-eveningness chronotype, use of contraceptives, and sleep quality. This data is necessary to assess the eligibility to participate and to analyse the collected data with consideration of possible effect of lifestyle of the participant.
Testing sessions:
Subjects will be exposed to 2 different conditions (window film vs. no window film) in two days (11:15- 16:45) to assess the window film(s) influence on visual and temperature comfort, sensation and perception. The exposure rooms are low-e film room (film 1) or a thermochromic film room (film 2), compared with no film room (control). These films will be applied to windows. Participants will perform 2 cognitive tests, 2 vision tasks and fill in questionanires at set times. They will also wear the sensors mentiond in Part 3 section 2 (wearable sensors) to measure their physiological parametersm suchs as skin temperature, heart rate and physical activity. Lastly, every hour they will provide a saliva sample by spitting into a tube to measure the cortisol level in the saliva. Saliva is collected to measure cortisol changes caused by the environment. The participants only saliva is collected by a cotton swap from a saliva collection tube (salivattes). The samples are then stored immediately in a -20 freezer, after it is transported to the storage lab they will be centrifuged for 2 mins at 1000g and then stored in a
-80 freezer for the duration of the study until analysis. The storage room is secured and only the research team can assess the samples. When they are to be analyzed for cortisol, the sample is defrosted and tested by a spectrophotometer to quantify the amount of cortisol. The sample is then discarded after this analysis.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
False
Is an FDA AA801 Violation?: