NCT06029543

Brief Summary

The goal of this cross-sectional observational study is to estimate the prevalence of lung function impairment as measured by spirometry in a population of Gambian women aged 15 and older. The main question\[s\] it aims to answer are:

  • What is the prevalence of lung function impairment in Gambian women
  • What is the prevalence of eosinophilic inflammation in Gambian women Consenting participants will undergo
  • Spirometry
  • Fractional exhaled nitric oxide (FENO) testing
  • α1-antitrypsin testing in patients with lung function impairment as assessed by spirometry

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
350

participants targeted

Target at P75+ for all trials

Timeline
7mo left

Started Dec 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress81%
Dec 2023Dec 2026

First Submitted

Initial submission to the registry

August 26, 2023

Completed
13 days until next milestone

First Posted

Study publicly available on registry

September 8, 2023

Completed
3 months until next milestone

Study Start

First participant enrolled

December 1, 2023

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

September 8, 2023

Status Verified

August 1, 2023

Enrollment Period

3 years

First QC Date

August 26, 2023

Last Update Submit

August 31, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Prevalence of lung function Impairment as measured by spirometry

    Certified technicians will perform Spirometry testing to measure lung function parameters such as FEV1, FVC, and FEV1/FVC ratio. Results will be interpreted by two Pulmonologists using GLI reference equations and z-scores. Bronchodilator reversibility is defined as an improvement of over 10% in FEV1 after albuterol sulfate administration. Lung function impairment will be assessed based on z-scores, with normal lung function being z-scores greater than -1.645, mild impairment between -1.65 and -2.5, moderate impairment between -2.51 and -4, and severe impairment below -4.1.

    Through study completion, an average of 1 year

Secondary Outcomes (1)

  • Prevalence of Type II (Eosinophilic) inflammation in Gambian Women

    Through study completion, an average of 1 year

Study Arms (1)

Gambian Women

Gambian women aged 15 and older with lung function impairment as measured by spirometry

Eligibility Criteria

Age15 Years+
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsSelf-identified female sex
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

All women older than 15 years in The Gambia

You may qualify if:

  • Self-identified female sex
  • Age \> 15 years: This age cutoff was chosen (as opposed to 18) because of the unique cultural norms and practices in the country where experiences and exposures occur at an earlier age than women in Western countries.

You may not qualify if:

  • Age \< 15 years
  • Non-resident household member
  • Any acutely unwell individual
  • Pregnancy
  • Any known history of active pulmonary disease (including TB) on treatment.
  • Individuals unable or unwilling to give consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Gamcotrap

Kanifing, The Gambia

Location

Related Publications (6)

  • Ale BM, Ozoh OB, Gadanya MA, Li Y, Harhay MO, Adebiyi AO, Adeloye D. Estimating the prevalence of COPD in an African country: evidence from southern Nigeria. J Glob Health Rep. 2022;6:e2022049. doi: 10.29392/001c.38200. Epub 2022 Sep 15.

    PMID: 36185970BACKGROUND
  • Chan-Yeung M, Ait-Khaled N, White N, Ip MS, Tan WC. The burden and impact of COPD in Asia and Africa. Int J Tuberc Lung Dis. 2004 Jan;8(1):2-14.

    PMID: 14974740BACKGROUND
  • Halbert RJ, Natoli JL, Gano A, Badamgarav E, Buist AS, Mannino DM. Global burden of COPD: systematic review and meta-analysis. Eur Respir J. 2006 Sep;28(3):523-32. doi: 10.1183/09031936.06.00124605. Epub 2006 Apr 12.

    PMID: 16611654BACKGROUND
  • Stoller JK, Sandhaus RA, Turino G, Dickson R, Rodgers K, Strange C. Delay in diagnosis of alpha1-antitrypsin deficiency: a continuing problem. Chest. 2005 Oct;128(4):1989-94. doi: 10.1378/chest.128.4.1989.

    PMID: 16236846BACKGROUND
  • Chapman KR, Chorostowska-Wynimko J, Koczulla AR, Ferrarotti I, McElvaney NG. Alpha 1 antitrypsin to treat lung disease in alpha 1 antitrypsin deficiency: recent developments and clinical implications. Int J Chron Obstruct Pulmon Dis. 2018 Jan 31;13:419-432. doi: 10.2147/COPD.S149429. eCollection 2018.

    PMID: 29430176BACKGROUND
  • American Thoracic Society; European Respiratory Society. American Thoracic Society/European Respiratory Society statement: standards for the diagnosis and management of individuals with alpha-1 antitrypsin deficiency. Am J Respir Crit Care Med. 2003 Oct 1;168(7):818-900. doi: 10.1164/rccm.168.7.818. No abstract available.

    PMID: 14522813BACKGROUND

MeSH Terms

Conditions

Pulmonary Disease, Chronic ObstructiveRespiratory Insufficiencyalpha 1-Antitrypsin Deficiency

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsRespiration DisordersLiver DiseasesDigestive System DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesSubcutaneous EmphysemaEmphysema

Study Design

Study Type
observational
Observational Model
ECOLOGIC OR COMMUNITY
Time Perspective
CROSS SECTIONAL
Target Duration
3 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 26, 2023

First Posted

September 8, 2023

Study Start

December 1, 2023

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

September 8, 2023

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will not share

Locations