CClinicalTrials.gg
TerminatedNCT02487394ProteomicsUpdated Apr 18, 2023Results posted

Protein Biomarker Discovery and Validation in Chronic Obstructive Pulmonary Disease (COPD) And Asthma

An observational study in Asthma and COPD, sponsored by The University of Texas Medical Branch, Galveston. Terminated at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2023-04-18.

Sponsored by The University of Texas Medical Branch, Galveston · Observational

Why this study was terminated
NIH Funded Grant Expired
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
9
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of the study is to better understand proteomics of asthma and COPD, and response to therapy. There are two Phases to this study broken into two arms. In Phase I, we propose is to use discovery proteomics and techniques to identify protein expression signatures. Subjects who complete Phase I are eligible, but not required, to enroll in Phase II. In Phase II, we propose to establish and validate the predictive value of protein signatures for treatment responses using inhaled corticosteroids.

Read the detailed description

There are two Phases to this study broken into two arms. In Phase I, our propose to use discovery proteomics and high throughput techniques to identify protein expression signatures. The total planned size of Phase I is 100 patients. Patients will be divided into two arms based on disease status (COPD or asthma). Active smoking will be defined as daily use of cigarettes, pipes, cigarillos or cigars at time of entry into the study and through duration of study. No active smoking defined as never smoking or having stopped smoking for 5 years or greater.

In the Phase II, we aim to establish and validate the predictive value of proteomic signatures for therapeutic responses using inhaled corticosteroids. For Phase II, subjects who completed Phase I are eligible, but not required to participate in Phase II.

02

Conditions studied

  • Asthma
  • COPD

Browse trials for

03

In context

Asthma

3,920 studies on the registry are indexed under Asthma; 506 are open to participants now.

This study's enrollment of 9 is below the median of 150 across 970 observational studies indexed under Asthma.

Browse Asthma studies →

Lead sponsor

The University of Texas Medical Branch, Galveston is the lead sponsor of 251 studies on the registry; 38 are open to participants now.

Of its 30 completed or terminated interventional studies of FDA-regulated products, 25 (83%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients will be divided into two identical arms based on smoking status. One arm will contain subjects who are active smokers and the other arm will contain subjects with no active smoking.

Each arm will contain 50 subjects, 26 with COPD (Stage II and III with 13 subjects in each) along with 24 asthmatics (Mild to Moderate disease with 12 subjects in each).

Eligibility criteria

Inclusion Criteria:

  • Criteria for Asthma

INCLUSION

  • History consistent with asthma: episodic wheezing, shortness of breath, or cough
  • Airway lability recognized by at least 12% improvement in Forced Expiratory Volume (FEV1) after 2 puffs of beta2 agonist Age >18yrs
  • FEV1 >40% predicted
  • Never smoker, current smoker, or quit smoking ≥5 years ago Criteria for COPD

INCLUSION

  • History consistent with COPD: dyspnea with exertion, productive cough, progressive course
  • Smoking history of at least 20 pack years
  • Current smoker or quit smoking ≥5 years ago
  • Age >18yrs
  • FEV1: Forced Vital Capacity (FVC) ratio \< 0.70 following 2 puffs of albuterol
  • FEV1 greater than 50% predicted

Exclusion Criteria:

  • Exclusion for Asthma EXCLUSION

    • Other respiratory illness other than asthma
    • Chronic infectious process
    • Significant other medical illness
    • Inability to consent
    • Pregnancy Exclusion for COPD EXCLUSION
    • Other respiratory illness other than COPD
    • Chronic infectious process
    • Significant other medical illness
    • Inability to consent
    • Pregnancy
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
9 participants (actual)
Target follow-up
1 Week
Patient registry
Yes

Groups and cohorts

  • COPD Smoker Subjects

    Smokers Active smoking will be defined as daily use of cigarettes, pipes, cigarillos or cigars at time of entry into the study and through duration of study.

    Procedure: Exhaled Breath Condensate (EBC)

  • Asthma Non-Smoker Subjects

    Non-Smokers Subjects with no active smoking. No active smoking defined as never smoking or having stopped smoking for 5 years or greater.

    Procedure: Exhaled Breath Condensate (EBC)

Interventions

  • ProcedureExhaled Breath Condensate (EBC)

    Collection of EBC condensate

06

What researchers measure

Primary outcomes

  1. Exhaled Breath Condensate Protein Concentration

    Protein concentrations were below the limit of detectability and are not scientifically robust.

    Time frame: 1 year through study completion

07

Results

Posted Apr 18, 2023
Limitations and caveats
It was anticipated to enroll in 4 arms of the study, only 2 arms had successful enrollment.

Participant flow

Phase 1
Participant flow — Phase 1
MilestoneAsthma Subjects-Non-SmokersCOPD Subjects-Smokers
Started81
Completed80
Not completed01
Withdrew: Withdrawal by subject01
Phase 2
Participant flow — Phase 2
MilestoneAsthma Subjects-Non-SmokersCOPD Subjects-Smokers
Started40
Completed40
Not completed00

Outcome measures

PrimaryExhaled Breath Condensate Protein Concentration

Protein concentrations were below the limit of detectability and are not scientifically robust.

Time frame:
1 year through study completion
Reported as:
Median · ug/ml
Exhaled Breath Condensate Protein Concentration
ug/mlCOPD, SmokersAsthma, Non-Smokers
Exhaled Breath Condensate Protein ConcentrationNA ± 0NA ± 0

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Asthma, Non-Smokers0/8 (0%)0/8 (0%)0/8 (0%)
COPD, Smokers0/1 (0%)0/1 (0%)0/1 (0%)

Baseline characteristics

The overall participants was a total of 9.

Age, Categorical
Age, Categorical(Participants)Asthma, Non-SmokersCOPD, SmokersTotal
<=18 years000
Between 18 and 65 years819
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Asthma, Non-SmokersCOPD, SmokersTotal
Female606
Male213
Region of Enrollment
Region of Enrollment(participants)Asthma, Non-SmokersCOPD, SmokersTotal
United States819
08

Study locations

1 site
  • University of Texas Medical Branch
    Galveston, Texas 77555, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02487394
Lead sponsor
The University of Texas Medical Branch, Galveston
Responsible party
Sponsor
First posted
Jul 1, 2015
Start date
May 2014
Primary completion
Jun 2016
Completion
Jun 2016
Results posted
Apr 18, 2023
Last update
Apr 18, 2023

Study contacts

William Calhoun, M.D.
principal investigator · UTMB

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Apr 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion