Enhancement of Corticosteroid Efficacy in COPD

This is a pilot study designed to evaluate the effects of theophylline and roflumilast on circulating Histone deacetylase (HDAC) levels in subjects with COPD, and the bronchodilator effects of corticosteroids. Studies will be performed in 10 subjects with COPD nonresponsive to bronchodilators. Subjects will receive theophylline tablets for 1 week, followed by measurement of circulating HDAC and the acute effect of oral prednisone on the bronchodilator response to inhaled beta agonist. Roflumilast tablets will be added to the theophylline for a further week and the studies repeated. The study will provide preliminary data on the effects of theophylline and roflumilast on circulating HDAC levels and the effects of corticosteroids on the beta agonist bronchodilator response in COPD.

Study Overview

• Status: Completed
• Conditions: COPD
• Intervention / Treatment: Drug: Theophylline; Drug: Roflumilast

Detailed Description

1. SUBJECTS: 10 Stable patients >45 years of age, with an established diagnosis of COPD (18), with FEV1 <60% predicted, FEV1/FVC <70% and <+15% FEV1 response to bronchodilator will be recruited. Patients of both genders will be included.

2. TESTS

   a) Blood: i) HDAC 2 in peripheral blood mononuclear cells: ii) Serum theophylline level b) Spirometry for measurement of FVC, FEV1 and FEV1/FVC

   PROCEDURES Visit 1.

   1. After providing informed consent, subjects will receive a brief history and physical examination
   2. Blood will be drawn from a peripheral vein for HDAC2 levels (2 ml).
   3. Each subject will undergo baseline spirometry, which will be repeated after 3 inhalations of an albuterol inhaler.

   c) Subjects will be asked to continue their regular treatment regimen, including long and short acting beta agonists and anticholinergics, as well as inhaled steroids.

   d) Theophylline tablets extended-release 12 hr formulation, 300 mg orally taken every 12 hr will be dispensed, and the subject will return one week later for Visit 2. The subject will be asked to refrain from using his/her long acting beta agonists and anticholinergics for one day (24 hours) prior to Visit 2, and not to use the short acting beta agonist or take any caffeine containing drinks on the morning of visit 2. The subject will be asked to inform the P. I. should there be any adverse event.

   Subjects discontinuing the study drugs because of side effects will be withdrawn from the study.

   Visit 2.

   1. A brief history and physical examination will be performed and the subject will be asked about any change in symptoms.
   2. Blood (5 ml) will be drawn from a peripheral vein for HDAC2 and theophylline levels
   3. After baseline spirometry the subject will be given a single dose of 40 mg prednisone tablets.
   4. After 120 minutes, spirometry will be repeated, followed by 3 puffs of albuterol inhaler and repeat spirometry.

   The subject will then be asked to continue the theophylline tablets and in addition will be given roflumilast tablets 500 mcg orally once daily, and asked to return one week later for Visit 3.

   The subject will be asked to refrain from using his/her long acting beta agonists and anticholinergics for one day (24 hours) prior to Visit 3, and not to use the short acting beta agonist or take any caffeine containing drinks on the morning of visit 3. The subject will be asked to inform the P. I. should there be any adverse event.

   Visit 3

   1. A brief history and physical examination will be performed and the subject will be asked about any change in symptoms.
   2. Blood (5 ml) will be drawn from a peripheral vein for HDAC2 measurement.
   3. After baseline spirometry the subject will be given a single dose of prednisone tablets in a dose of 40 mg.
   4. After 120 minutes, spirometry will be repeated, followed by 3 puffs of albuterol inhaler and repeat spirometry.

   The subject will then have completed the study and will return to his/her previous treatment regimen.

   Data analysis:

   Results will be compared in terms of baseline vs drug by paired t test for change in FEV1 and FEV1/FVC as well as peripheral blood mononuclear blood HDAC2 levels. The relationship between FEV1 and FEV1/FVC and blood HDAC2 levels will be examined by correlation analysis.

   Expected results It is expected that with both theophylline and roflumilast treatment there will be a significant (p<0.05) increase in HDAC2 levels. It is also expected that with both theophylline and roflumilast treatment there will be a significant (p<0.05) increase in the bronchodilator response after the steroid dose, thereby supporting the hypothesis.

   It is also possible that there will be no effect on spirometry of either treatment; this would indicate that an increase in HDAC2 does not improve steroid responsiveness.

• Study Type: Interventional
• Enrollment (Actual): 13
• Phase: Phase 3

Contacts and Locations

Study Locations

• United States
  • Connecticut
    • Farmington, Connecticut, United States, 06032
      • UConnHealth

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 45 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Established diagnosis of COPD with FEV1 <60% predicted
• FEV1/FVC <70% and <+15% FEV1 response to bronchodilator.
• Patients of both genders will be included.
• IRB approved written informed consent will be obtained from each subject.

Exclusion Criteria:

1. Recent (<1 month) exacerbation of COPD,
2. Known hypersensitivity to beta agonists, theophylline, steroids, or roflumilast.
3. Current or recent (<2 weeks) treatment with oral steroids, theophylline or other methylxanthines, or roflumlast.
4. Diagnosis or history of asthma, uncontrolled hypertension, or congestive heart failure.
5. History of Cardiac arrhythmia
6. History of seizures.
7. History of Liver disease
8. Gastrointestinal disease, including history of peptic ulcer disease.
9. Current infection or antibiotic treatment.
10. History of depression or psychiatric disease.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: thophylline and roflumilast; Theophylline for one week, followed by the addition of Roflumilast for a further one week.	Drug: Theophylline; Oral; Drug: Roflumilast; Oral

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Bronchodilation	Change in FEV1 L and FVC L	Baseline, Week 1 and 2

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in HDAC2 Levels	circulating Histone Deacetylase2 levels measured in blood sample	Baseline, Week 1 and 2

Collaborators and Investigators

• Sponsor: UConn Health
• Investigators: Principal Investigator: Nausherwan Burki, UConn Health

Study record dates

Study Major Dates

• Study Start: December 1, 2014
• Primary Completion (Actual): August 1, 2016
• Study Completion (Actual): August 1, 2016

Study Registration Dates

• First Submitted: January 13, 2015
• First Submitted That Met QC Criteria: January 15, 2015
• First Posted (Estimate): January 16, 2015

Study Record Updates

• Last Update Posted (Actual): June 19, 2018
• Last Update Submitted That Met QC Criteria: May 21, 2018
• Last Verified: May 1, 2018

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Physiological Effects of Drugs; Neurotransmitter Agents; Molecular Mechanisms of Pharmacological Action; Vasodilator Agents; Autonomic Agents; Peripheral Nervous System Agents; Enzyme Inhibitors; Purinergic Antagonists; Purinergic Agents; Bronchodilator Agents; Anti-Asthmatic Agents; Respiratory System Agents; Phosphodiesterase Inhibitors; Purinergic P1 Receptor Antagonists; Theophylline
• Other Study ID Numbers: 14-032-3