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Recruiting NCT03263130

NCT03263130 Site and Mechanism(s) of Expiratory Airflow Limitation in COPD, Emphysema and Asthma-COPD Overlap

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Clinical Trial Summary
NCT ID NCT03263130
Status Recruiting
Phase
Sponsor Gelb, Arthur F., M.D.
Condition COPD, Emphysema, Asthma COPD Overlap
Study Type OBSERVATIONAL
Enrollment 60 participants
Start Date 2017-01-01
Primary Completion 2027-01-01

Eligibility & Interventions

Sex All sexes
Min Age 30 Years
Max Age N/A
Study Type OBSERVATIONAL
Interventions
As above: diagnosis: COPD, Emphysema, Asthma-COPD Overlap

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 60 participants in total. It began in 2017-01-01 with a primary completion date of 2027-01-01.

⚠ 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

The purpose of this cross-sectional, observational study is to evaluate the site and mechanism(s) for expiratory airflow limitation in chronic, treated, current or former smokers (\>15 pack years) with COPD, Emphysema, and Asthma-COPD Overlap with mild to severe expiratory airflow limitation. Treatment may include short and long acting inhaled beta2agonists, short and long acting inhaled muscarinic receptor antagonists, inhaled and or oral corticosteroid, oral antibiotic, supplemental oxygen, and PDE type 4 inhibitor. In some cases, the patient may have had a history of asthma preceding the development of COPD (Asthma COPD Overlap).

Eligibility Criteria

Inclusion Criteria: * asthma- copd overlap * emphysema in smokers with smoking history \> 15 pack years * COPD/ bronchitis and bronchiectasis in smokers with smoking history * \>15 pack years Exclusion Criteria:other pulmonary or systemic diagnosis * non smokers * any other pulmonary diagnosis * pulmonary fibrosis

Contact & Investigator

Central Contact

Arthur F Gelb, MD

✉ afgelb@msn.com

📞 562-633-2204

Principal Investigator

Arthur F Gelb, MD

PRINCIPAL INVESTIGATOR

Clin Prof Geffen School of Medicine at UCLA Medical Center

Frequently Asked Questions

Who can join the NCT03263130 clinical trial?

This trial is open to participants of all sexes, aged 30 Years or older, studying COPD, Emphysema, Asthma COPD Overlap. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT03263130 currently recruiting?

Yes, NCT03263130 is actively recruiting participants. Contact the research team at afgelb@msn.com for enrollment information.

Where is the NCT03263130 trial being conducted?

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

Who is sponsoring the NCT03263130 clinical trial?

NCT03263130 is sponsored by Gelb, Arthur F., M.D.. The principal investigator is Arthur F Gelb, MD at Clin Prof Geffen School of Medicine at UCLA Medical Center. The trial plans to enroll 60 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: September 2026  ·  Data Methodology