NCT00485576

Brief Summary

This study is to designed to test the role of complement in the late asthmatic response to allergen challenge in mild asthma, as an indicator of the possible role of complement in the broader asthmatic population.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
21

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Sep 2007

Shorter than P25 for phase_2

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 12, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

June 13, 2007

Completed
3 months until next milestone

Study Start

First participant enrolled

September 1, 2007

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2008

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2008

Completed
Last Updated

January 15, 2009

Status Verified

January 1, 2009

Enrollment Period

1 year

First QC Date

June 12, 2007

Last Update Submit

January 14, 2009

Conditions

Outcome Measures

Primary Outcomes (1)

  • Allergen-induced late asthmatic response as measured by the AUC of FEV1 from 3 to 7 hours post-allergen challenge

    7 hours

Secondary Outcomes (5)

  • At 24 hours post-allergen challenge; treatment comparison of allergen-induced changes from baseline in sputum eosinophils and metachromatic cells

    72 hours

  • Allergen-induced airway responsiveness 24 hours post-allergen challenge as primary interest; 72 hour assessment timepoint will be supportive

    72 hours

  • Maximum % decrease in FEV1 from 3 to 7 hours post-allergen challenge

    7 hours

  • % decrease of FEV1 at 24 hours post-allergen challenge

    24 hours

  • AUC and maximum % fall of FEV1 from 0-3 hours post-allergen challenge

    3 hours

Interventions

eculizumab 600 mg or matching placebo iv infusion.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • diagnosed with stable, mild, allergic asthma;
  • history of episodic wheeze and shortness of breath;
  • sexually active women of childbearing potential must use contraceptive during the entire duration of study;
  • willing and able to give informed consent;
  • positive methacholine challenge;
  • positive skin prick test to common aeroallergens;
  • positive allergen-induced early and late phase bronchoconstrictor response
  • FEV1 at least 70% of predicted value;
  • PC20 at baseline that is within 1 doubling dose of that measured during screening

You may not qualify if:

  • active bacterial infection;
  • respiratory tract infection or worsening of asthma within 28 days
  • use of inhaled or topical steroids within 28 days or use of systemic corticosteroids within 90 days;
  • use of cromoglycate, nedocromil, leukotriene receptor antagonists and inhibitors of 5-lipoxygenase within 14 days;
  • use of antihistamines, immunosuppressives, or any medications that interact with eculizumab;
  • use of theophylline-containing agents (any type), long-acting beta 2-agonists (salmeterol, formoterol) or long-acting anticholinergics within 14 days;
  • use of NSAIDs prior to spirometry;
  • use of tobacco products currently or within the previous 12 months; or smoking history \> 10 pack-years;
  • lung disease other than mild allergic asthma;
  • patients with LAR who have not been vaccinated against Neisseria meningitidis;
  • hepatitis B or HIV infection;
  • parasitic infection;
  • participation in any other investigational drug trial;
  • pregnant or breast feeding women, or intending to conceive during the course of trial;
  • known hypersensitivity to the treatment drug or any of its excipients;
  • +6 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

McMaster University

Hamilton, Ontario, L8N 3Z5, Canada

Location

Hospital Laval

Ste-Foy, Quebec, G1V 4G5, Canada

Location

MeSH Terms

Interventions

eculizumab

Study Officials

  • Henk-Andre Kroon, MD

    Alexion Pharmaceuticals, Inc.

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

June 12, 2007

First Posted

June 13, 2007

Study Start

September 1, 2007

Primary Completion

September 1, 2008

Study Completion

November 1, 2008

Last Updated

January 15, 2009

Record last verified: 2009-01

Locations