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Mannitol Challenge Study

A Double-Blind, Randomised, Placebo-controlled, Cross-over, Phase 2 Mannitol Challenge Study, Investigating the Efficacy of CRD007 in Adult Subjects with Asthma - RSPR-007

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2015-000120-28-DK
Enrollment
24
Registered
2015-02-04
Start date
2015-03-19
Completion date
Unknown
Last updated
2017-01-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Asthma MedDRA version: 17.1 Level: PT Classification code 10003553 Term: Asthma System Organ Class: 10038738 - Respiratory, thoracic and mediastinal disorders

Interventions

Sponsors

RSPR Pharma AB
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Written informed consent must be obtained before any trial related procedures are performed 2) Age =18 and 20 ppb (calculated average of 2 independent FENO measurements) at Visit 1 5) Baseline FEV1 >80% of the predicted normal value at Visit 1 6) Demonstration of PD15 at =315 mg mannitol =65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: - Lower respiratory tract infection 2 x 400 µg budesonide /day (dose must not be changed <4 weeks prior to Visit 1 and during the trial) • Oral corticosteroids • Any systemic immunomodulatory therapy • Any systemic anti-rheumatic therapy • Anti-IL-4 therapy - Clinically significant comorbidities that may be compromised by induced bronchospasm or repeated spirometry as judged by Investigator - Significant concurrent, uncontrolled medical condition including, but not limited to, renal, hepatic, cardiac, haematological, gastrointestinal, endocrine, inflammatory, autoimmune, pulmonary, neurological, cerebral or psychiatric disease evaluated by the Investigator to interfere with effect of the trial drug

Design outcomes

Primary

MeasureTime frame
Main Objective: To investigate the efficacy of single doses of 40 mg and 400 mg CRD007 in subjects with asthma ;Secondary Objective: •To determine the protective effect of CRD007 on release of mast cell mediators by measuring urine excretion of biomarkers (9a,11ß-PGF2; LTE4; N-methylhistamine) before and after mannitol challenge •To investigate the safety profile of single doses of 40 mg and 400 mg CRD007 ;Primary end point(s): PD15 for mannitol after treatment with CRD007 and placebo;Timepoint(s) of evaluation of this end point: 3 hours after administration of IMP/Placebo a mannitol challenge test will be performed to evaluate the primary endpoint

Secondary

MeasureTime frame
Secondary end point(s): • PD15 for mannitol after treatment with CRD007 in relation to pemirolast blood concentration a) Response Dose Ratio after treatment with CRD007 and placebo b) Response Dose Ratio induced by mannitol challenge after treatment with CRD007 in relation to pemirolast blood concentrations c) Change in urine excretion of biomarkers for mast cell mediators (9a,11ß-PGF2; LTE4; N-methylhistamine) in relation to CRD007 treatment d) Adverse events ;Timepoint(s) of evaluation of this end point: 3 hours after administration of IMP/Placebo a mannitol challenge test will be performed to evaluate the secondary endpoints (a,b) Less than 10 minutes before the mannitol challenge test and 30 and 60 minutes after the test (c) During the trial (visit 1-5) (d)

Countries

Denmark

Contacts

Public ContactCarl-Johan Dalsgaard

RSPR Pharma AB

carl-johan.dalsgaard@ofco.se

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026