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Efficacy of TPI ASM8 During a 14-Day Allergen Challenge

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: July 8, 2010
Last Update Posted: November 15, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
This is a randomized, double-blind, placebo-controlled, 3-way crossover trial to evaluate the efficacy and safety of two different doses of inhaled TPI ASM8 administered daily for 14 days for the treatment of allergic asthma and allergen-induced asthma.

Condition Intervention Phase
Asthma Drug: TPI ASM8 Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Double-Blind,Randomized, Placebo-controlled, 3-Way Cross Over Study to Evaluate the Efficacy and Safety of 14 Days TPI ASM8 in Subjects With Asthma

Resource links provided by NLM:

Further study details as provided by Pharmaxis:

Primary Outcome Measures:
  • Compare the AUC of the late asthmatic response (LAR) between treatments and placebo [ Time Frame: Day 14 (Between 3-7 hr post-AIC) ]
    The area under the curve fo the late asthmatic response(% fall in FEV1)(between 3-7 hrs post allergen challenge) will be compared between the 2 doses of TPI ASM8 and the placebo

Secondary Outcome Measures:
  • Compare the early and late asthmatic responses between active treatments and placebo after 14 days treatment [ Time Frame: Day 14 ]
    Compare the % fall in FEV1 during the EAR and the LAR post-allergen challenge on Day 14.

  • Compare the Methacholine Hyperresponsiveness (PC20) between treatment pre and post allergen challenge [ Time Frame: Day 13 and Day 15 (Pre & post AIC) ]
    We will compare the PC20( provocative concentration of methacholine) that cause a 20% fall in FEV1

  • Effect of ASM8 on mast cells (as measured by specific biomarkers) [ Time Frame: Day 14 (pre, post and and peri-AIC) ]
    The leukotriene E4 and 9-11B PGF2 wil be measured in urine and plasma to determine the level of mast cells activation following the allergen challenge

  • Sputum inflammation indicators (Eos, neutrophils, etc.) [ Time Frame: Day 14 and Day 15 ]
    We will measure the levels of total cell counts and the differential to evaluate the degree of inflammation between treatments and placebo.

Enrollment: 16
Study Start Date: November 2010
Study Completion Date: February 2012
Primary Completion Date: December 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: TPI ASM8 low dose Drug: TPI ASM8
ASM8 4mg/mL (low dose) daily for 14 days by inhalation
Active Comparator: TPI ASM8 high dose Drug: TPI ASM8
ASM8 4mg/mL (high dose) daily for 14 days by inhalation
Placebo Comparator: Placebo Drug: TPI ASM8
Placebo PBS solution daily for 14 days by inhalation

Detailed Description:
Two doses of TPI ASM8 will be compared to placebo and look at the effect on asthmatic responses after an allergen challenge during a 3-way cross over design. Sputum inflammation , mRNA gene expression on target receptors, ECP , biomarkers of mast cells activation et PK profile will be studied.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Mild asthma, male and female aged 18-55 y.old
  • Steroid-naive, non-smoker
  • Dual responders

Exclusion Criteria:

  • Any chronic disease(unstable)
  • Immunosuppressed, recent or ongoing steroid intake
  • Methacholine PC 20 > 16 mg/mL
  Contacts and Locations
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): NCT01158898

Canada, Alberta
Health Research Innovation Centre
Calgary, Alberta, Canada, T2N 4N1
Canada, British Columbia
Vancouver Coastal Health Research Institute
Vancouver, British Columbia, Canada, V5Z 1M9
Canada, Ontario
McMaster University
Hamilton, Ontario, Canada, L8N 3Z5
Laval Centre de Pneumologie Chest Division
Quebec, Canada, G1V4G5
Sponsors and Collaborators
Study Chair: Paul O'Byrne, MD McMaster University
Study Director: Rene Pageau, M.Sc Pharm Pharmaxis Ltd
Principal Investigator: Louis-Philippe Boulet, MD Hopital Laval, Quebec
Principal Investigator: Richard Leigh, MD University of Calgary
Principal Investigator: Gail M Gauveau, PhD McMaster University
Principal Investigator: Mark Fitzgerald, MD Vancouver Coastal Health Research Institute
  More Information

Responsible Party: Pharmaxis
ClinicalTrials.gov Identifier: NCT01158898     History of Changes
Other Study ID Numbers: TPI ASM8-207
First Submitted: June 17, 2010
First Posted: July 8, 2010
Last Update Posted: November 15, 2013
Last Verified: November 2013

Keywords provided by Pharmaxis:
Mild to moderate asthma
Allergen inhalation challenge

Additional relevant MeSH terms:
Bronchial Diseases
Respiratory Tract Diseases
Lung Diseases, Obstructive
Lung Diseases
Respiratory Hypersensitivity
Hypersensitivity, Immediate
Immune System Diseases