Feasibility of Measuring Skin Carotenoid Level in an Asthma Clinic

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT06636396

Enrollment

Registered

2024-10-10

Start date

2021-11-08

Completion date

2023-02-07

Last updated

2024-10-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Asthma

Brief summary

The purpose of this study is to assess the use of a practical tool to objectively measure the fruit and vegetable intake in people with asthma.

Detailed description

After consenting to join the study, all participants enter a single cohort, cross-sectional study to assess pulmonary function, asthma control, carotenoid level, and diet intake.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Pulmonary patients 18 years of age and older * Confirmed diagnosis of asthma by a physician and confirmed by a pulmonary physician * English speaking * Access to the internet

Exclusion criteria

* Acute upper or lower respiratory infection * Systemic corticosteroids * Recent or current confirmed diagnosis of Covid-19

Design outcomes

Primary

Measure	Time frame	Description
FEV1	measured at a single time point when recruited in the study (cross sectional). Study outcomes will be reported upon study completion, approximately 1 year from study onset.	forced expiratory volume in one second
ACT	measured at a single time point when recruited in the study (cross sectional). Study outcomes will be reported upon study completion, approximately 1 year from study onset.	Asthma control test results in a score of 5-25, with a lower score indicating better asthma control.
Skin Carotenoid Level	measured at a single time point when recruited in the study (cross sectional). Study outcomes will be reported upon study completion, approximately 1 year from study onset.	Skin carotenoid level, measured with a non-invasive tool and is an indicator of fruit and vegetable intake. Skin carotenoid levels are shown as a score of 0-800, with a higher score representing a higher level of carotenoids.
Diet Intake	measured at a single time point when recruited in the study (cross sectional). Study outcomes will be reported upon study completion, approximately 1 year from study onset.	Nutrascreen diet questionnaire to assess nutritional intake. Specifically, quantity of fruits and vegetable intake will be assessed.

Countries

United States

Outcome results