Clinical trial Recruiting at 1 site Observational Ages 18 and up

Investigating how lung diseases affect white blood cells in the lungs

Official title: The Role of Conformational Diseases on Macrophage Function

Run by University of Florida · NCT01851642 · Data updated 2026-11-12

This study is trying to see how Alpha-1-antitrypsin deficiency and Cystic Fibrosis affect important white blood cells in the lungs, which could help us understand lung inflammation and disease better.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment220 (estimated)
SponsorUniversity of Florida
Academic / other
Locations1 site (Gainesville, Florida)
StatusRecruiting
StartedAugust 9, 2007
Main results expectedJuly 20, 2032
Study endsJuly 20, 2033
Registry record updatedNovember 6, 2025
Trial IDNCT01851642 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 and older with a diagnosis of Alpha-1-antitrypsin deficiency or Cystic Fibrosis.

Probably not a fit

Patients who are pregnant, breastfeeding, or have significant medical conditions that could affect their safety may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to explore the impact of Alpha-1-antitrypsin deficiency and Cystic Fibrosis on the functionality of lung macrophages, which are crucial white blood cells involved in inflammation and tissue repair. The study will involve participants undergoing a history and physical examination, blood draws, pulmonary function testing, and the use of an albuterol inhaler. By understanding how these conditions impair macrophage function, the research seeks to uncover new insights into the mechanisms behind lung inflammation and disease progression.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of lung diseases associated with AAT deficiency and Cystic Fibrosis.

How similar studies have gone: While the specific approach of this study is novel, previous research has indicated that understanding macrophage function in lung diseases can lead to significant insights.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Signed informed consent
* Male or female 18 years of age or older
* Negative pregnancy test for women of childbearing potential
* Hemoglobin \>12.5 g/dl measured on the day of participation
* Negative urine nicotine test

Exclusion Criteria:

* Pregnancy or breastfeeding
* Weight \< 50 kg
* History of anemia requiring blood transfusions, erythropoietin supplementation, or iron supplementation within the past 36 months
* Known hemoglobin \<12.5 g/dl within the past 90 days
* Systolic blood pressure \> 180 mmHg and/or diastolic blood pressure \>100 mmHg
* Poor venous access
* Large volume blood donation (\>200 ml or 7 ounces) within the previous 56 days (e.g. blood donation for the purposes of blood banking)
* Clinically significant cardiac, hemostatic or neurological impairment or any other significant medical condition that, in the opinion of the investigator would affect subject safety (e.g., recent myocardial infarction, history of prolonged bleeding time, cerebral vascular accident, advanced cancer or uncontrolled medical condition)
* Psychiatric or cognitive disturbance or illness that would affect subject safety
* Current smoker

Where it's running

  • Shands at the University of Florida
    Gainesville, Florida, United States
    Recruiting

Study contacts

  • Principal investigator: Karina Serban, MD — University of Florida, College of Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine
  • Study coordinator: Allison E. Faunce, B.A.
  • Email: Allison.Faunce@medicine.ufl.edu
  • Phone: 352-273-8666

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.