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Safety and Tolerability Trial of Inhaled Alpha1-Proteinase Inhibitor (Human), Hydrophobic Chromatography Process (Alpha-1 HC) in Subjects With Cystic Fibrosis

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ClinicalTrials.gov Identifier: NCT01684410
Recruitment Status : Completed
First Posted : September 13, 2012
Results First Posted : February 8, 2016
Last Update Posted : February 8, 2016
Sponsor:
Information provided by (Responsible Party):
Grifols Therapeutics LLC

Study Description
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Brief Summary:
This was a randomized, double-blind, placebo-controlled, dose escalation study to assess the safety and tolerability of 100 mg and 200 mg of inhaled Alpha-1 HC administered once a day for three weeks in subjects aged 18 years and older with cystic fibrosis (CF). The treatment duration in this study was intended to provide multi-dose safety information prior to proceeding to longer durations of exposure.

Condition or disease Intervention/treatment Phase
Cystic Fibrosis Biological: Alpha-1 HC 100 mg Biological: Placebo Biological: Alpha-1 HC 200 mg Phase 2

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 30 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Three Week Dose Escalation, Randomized, Double-Blind, Placebo-Controlled Trial to Assess the Safety and Tolerability of 100 mg or 200 mg of Inhaled Alpha-1 HC, Once a Day in Subjects With Cystic Fibrosis.
Study Start Date : August 2012
Actual Primary Completion Date : October 2013
Actual Study Completion Date : October 2013

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Arms and Interventions
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Arm Intervention/treatment
Experimental: Alpha-1 HC 100 mg
100 mg of aerosolized Alpha-1 HC inhaled daily via nebulizer for 3 weeks.
 Biological: Alpha-1 HC 100 mg
Alpha-1 HC is a sterile, liquid preparation of purified alpha1-proteinase inhibitor prepared from pooled human plasma. Alpha-1 HC 100 mg inhaled once daily for 21 days for a total of 21 inhaled treatments.
Other Names:
  • Alpha1-proteinase inhibitor
  • alpha1-antitrypsin
Experimental: Alpha-1 HC 200 mg
200 mg of aerosolized Alpha-1 HC inhaled daily via nebulizer for 3 weeks.
 Biological: Alpha-1 HC 200 mg
Alpha-1 HC is a sterile, liquid preparation of purified alpha1-proteinase inhibitor prepared from pooled human plasma. Alpha-1 HC 200 mg inhaled once daily for 21 days for a total of 21 inhaled treatments.
Other Names:
  • Alpha1-proteinase inhibitor
  • alpha1-antitrypsin
Placebo Comparator: Placebo
Placebo inhaled daily via nebulizer for 3 weeks. Placebo (phosphate buffer saline with polysorbate).
 Biological: Placebo
Phosphate Buffer Saline with Polysorbate (placebo) composed of the same elements listed for Alpha-1 HC, minus the 50 mg/mL of Alpha-1 HC. Placebo inhaled once daily for 21 days for a total of 21 inhaled treatments.


Outcome Measures
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Primary Outcome Measures :
  1. Adverse Events [ Time Frame: 3 weeks ]
    adverse event frequency


Other Outcome Measures:
  1. Percent Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1) at Week 3 [ Time Frame: 3 weeks ]
    FEV1 conducted before and after inhalation of the investigational product at study visits.

  2. Percent Change From Baseline in Forced Vital Capacity (FVC) at Week 3 [ Time Frame: 3 weeks ]
    FVC conducted before and after inhalation of the investigational product


Eligibility Criteria
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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Age 18 years or older.
  • Documentation of CF diagnosis.
  • Have a pre-bronchodilator FEV1 ≥ 40% of predicted at Visit 1 and have a Visit 2 pre-investigational product FEV1 that is ≥ 40% of predicted and within ± 15% of the Visit 1 result.
  • Deemed by the Investigator to be a suitable candidate for serial collection of expectorated sputum.

Exclusion Criteria:

  • Had a pulmonary exacerbation during the 4 weeks before screening (Visit 1) which required the initiation of new antibiotic treatment
  • Have a pulmonary exacerbation during the screening period (between Visit 1 and Visit 2) which requires the initiation of new antibiotic treatment
  • FEV1 < 0.59 liters at the screening visit
  • Respiratory insufficiency with continuous supplemental oxygen therapy, or carbon dioxide retention
  • Elevated aspartate transaminase (AST) or alanine aminotransferase (ALT) that is ≥ 3 times the upper limit of normal for age and gender
  • Smoking during the past 6 months
  • Lung surgery during the past 2 years
  • Positive culture for Burkholderia cepacia or mycobacterium during the past two years.
  • Active allergic bronchopulmonary aspergillosis
  • Pre-treatment sputum collection at Visit 1 or Visit 2 (Randomization) characterized by problems such as inadequate sputum volume or quality.
  • Known selective Immunoglobulin A (IgA) deficiency with known antibody against IgA (anti-IgA antibody).
  • History of anaphylaxis or severe systemic response to any plasma-derived alpha1-proteinase inhibitor preparation or other blood product(s), or to polysorbates.
  • Use of chronic oral steroids during the study. Note: Inhaled corticosteroids that had been administered for at least 4 weeks prior to Visit 1 were permissible during the study.
  • Use of chronic, high dose ibuprofen therapy within 3 weeks of screening and at anytime during the study.
  • Chronic maintenance therapy with systemic antibiotics within 3 weeks of screening and through last dose of investigational product.
  • Use of leukotriene synthesis inhibitor (zileuton) or leukotriene receptor antagonists (montelukast, zafirlukast) within 3 weeks of screening and at anytime during the study.
  • Use of roflumilast within 3 weeks of screening and at any time during the study.
  • Initiation of a new chronic medication or dosage change of a chronic medication for treatment of cystic fibrosis (example: Kalydeco™ [ivacaftor]) within 3 weeks of screening (Visit 1).
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01684410


Locations
United States, Alabama
The University of Alabama at Birmingham
Birmingham, Alabama, United States, 35233
United States, Colorado
National Jewish Hospital
Denver, Colorado, United States, 80206
United States, Massachusetts
Children's Hospital Boston
Boston, Massachusetts, United States, 02115
United States, North Carolina
UNC at Chapel Hill
Chapel Hill, North Carolina, United States, 27599
United States, Ohio
Rainbow Babies and Children's Hospital
Cleveland, Ohio, United States, 44106
United States, South Carolina
Medical University of South Carolina
Charleston, South Carolina, United States, 29425
Sponsors and Collaborators
Grifols Therapeutics LLC
More Information
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Responsible Party: Grifols Therapeutics LLC
ClinicalTrials.gov Identifier: NCT01684410     History of Changes
Other Study ID Numbers: T6005-201
First Posted: September 13, 2012    Key Record Dates
Results First Posted: February 8, 2016
Last Update Posted: February 8, 2016
Last Verified: January 2016

Keywords provided by Grifols Therapeutics LLC:
Cystic Fibrosis
Alpha1-proteinase inhibitor
Alpha1-antitrypsin

Additional relevant MeSH terms:
Fibrosis
Cystic Fibrosis
Alpha 1-Antitrypsin Deficiency
Pathologic Processes
Pancreatic Diseases
Digestive System Diseases
Lung Diseases
Respiratory Tract Diseases
Genetic Diseases, Inborn
Infant, Newborn, Diseases
 Liver Diseases
Subcutaneous Emphysema
Emphysema
Alpha 1-Antitrypsin
Protein C Inhibitor
Protease Inhibitors
Trypsin Inhibitors
Serine Proteinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action