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Clinical Trial Summary

A study evaluating efficacy and safety of repeated doses of PT027 compared to PT007 in patients with asthma and acute airway obstruction induced by repeated mannitol challenges


Clinical Trial Description

This is a multi-center, randomized, double-blind, 2-period, cross-over study evaluating efficacy and safety of repeated doses of PT027 (albuterol/budesonide pressurized metered dose inhaler (pMDI)) compared to PT007 (albuterol pMDI) in participants with asthma and acute airway obstruction induced by 2 mannitol challenges at least 8 hours apart. It is a two-part study where Part 1 will enroll a small cohort of participants and will be used as a pilot study. The data obtained from Part 1 will be assessed by an internal AstraZeneca advisory board, and suggested changes may be made to Part 2 of the study. The following is the sequence of study visits: (i) Visit 1 (V1) screening (ii) Visit 2 (V2) 10 to 14 days after Visit 1 assessments; 1st dual challenge and treatment visit (iii) Visit 3 (V3) 10 to 14 days after Visit 2; 2nd dual challenge and treatment visit At Visit 1, all participants will be subjected to a single mannitol challenge to establish a positive response (defined as a ≥15% decrease in forced expiratory volume in the first second [FEV1] from the 0 mg mannitol FEV1 value) and will receive 4 puffs of open-label PT007. At Visit 2, participants will be randomized to one of 2 treatment sequences, A/B or B/A, where treatments A and B are defined as: (i) Treatment A = PT027 (ii) Treatment B = PT007 For treatment sequence A/B, participants will receive repeated inhalations of PT027 at Visit 2 followed by repeated inhalations of PT007 in Visit 3 . For treatment sequence B/A, participants will receive repeated inhalations of PT007 at Visit 2 followed by repeated inhalations of PT027 in Visit 3. Participants will have a Follow-up Telephone call 7 days after Visit 3/after Early discontinuation (ED). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05555290
Study type Interventional
Source AstraZeneca
Contact AstraZeneca Clinical Study Information Center
Phone 1-877-240-9479
Email information.center@astrazeneca.com
Status Recruiting
Phase Phase 3
Start date September 28, 2022
Completion date April 19, 2024

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