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Recruiting NCT03839992

NCT03839992 Detection of Unsuspected Small Airways Obstruction in Cystic Fibrosis

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Clinical Trial Summary
NCT ID NCT03839992
Status Recruiting
Phase
Sponsor Gelb, Arthur F., M.D.
Condition Cystic Fibrosis in Children
Study Type OBSERVATIONAL
Enrollment 100 participants
Start Date 2018-04-25
Primary Completion 2027-04-25

Eligibility & Interventions

Sex All sexes
Min Age 5 Years
Max Age 40 Years
Study Type OBSERVATIONAL
Interventions
spirometry

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.

This trial targets 100 participants in total. It began in 2018-04-25 with a primary completion date of 2027-04-25.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

Goal is to physiologically detect unsuspected small airways obstruction in children and adults with treated heterozygous and homozygous cystic fibrosis. Unsuspected refers to normal routine pre bronchodilator spirometry including normal FEV1(L), FVC (L). and FEV1/FVC%. This is a retrospective study.

Eligibility Criteria

Inclusion Criteria: Heterozygote or homozygote patients with cystic fibrosis with normal routine pre bronchodilator spirometry including normal FEV1(L), FVC(L) and FEV1/FVC%. Exclusion Criteria:Heterozygote or homozygote patients with cystic fibrosis with ABNORMAL routine pre bronchodilator spirometry \-

Contact & Investigator

Central Contact

Arthur F Gelb, MD

✉ afgelb@msn.com

📞 562-565-5333

Principal Investigator

Arthur Gelb, MD

PRINCIPAL INVESTIGATOR

University of California, Los Angeles

Frequently Asked Questions

Who can join the NCT03839992 clinical trial?

This trial is open to participants of all sexes, aged 5 Years or older, up to 40 Years, studying Cystic Fibrosis in Children. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT03839992 currently recruiting?

Yes, NCT03839992 is actively recruiting participants. Contact the research team at afgelb@msn.com for enrollment information.

Where is the NCT03839992 trial being conducted?

This trial is being conducted at Lakewood, United States, Long Beach, United States.

Who is sponsoring the NCT03839992 clinical trial?

NCT03839992 is sponsored by Gelb, Arthur F., M.D.. The principal investigator is Arthur Gelb, MD at University of California, Los Angeles. The trial plans to enroll 100 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology