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Effect of bronchodilator on abdominal pain

Effectiveness of Inhalation of be-ta Stimulant on Abdominal Pain in an Oral challenge Test (Double-Blind Placebo-controlled Randomized Controlled Trial) - Effectiveness of inhalation of be-ta stimulant on abdominal pain

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs051250223
Enrollment
40
Registered
2026-02-10
Start date
2026-02-10
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

food allergy food allergy

Interventions

The test drug with the allocation number (a total of 1.0 mL of a solution of 0.3 mL of venetrin inhalation solution or placebo (saline) and a mixture of 0.7 mL of saline) is inhaled using a nebulizer

Sponsors

Takaoka Yuri
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients diagnosed with or suspected of having egg allergy who are undergoing an oral food challenge (OFC) with egg to confirm the tolerable dose or for diagnostic purposes Patients aged 5 years or older and under 18 years at the time of consent Patients from whom written informed consent for participation in the study can be obtained, either from the subject themselves (if aged 16 or 17) or from a legally authorized representative

Exclusion criteria

Exclusion criteria: Individuals who are judged to have difficulty appropriately reporting abdominal pain using a face scale due to underlying diseases or other conditions. Individuals who are currently participating in another interventional study for food allergy. Individuals who have previously been enrolled in this study due to abdominal pain and have received an assigned treatment. Individuals who used a short-acting beta2-agonist on the day before or prior to the start of the OFC (use of ICS/LABA is permitted), or who used systemic steroids from 14 days before the OFC through the day of the OFC. Individuals with hypersensitivity to beta2-agonists. Individuals with a history of heart disease or arrhythmia. Individuals with a history of adrenaline (epinephrine) administration during an OFC using the same challenge food and the same challenge dose as the planned OFC. Individuals who are deemed inappropriate as study subjects by the principal investigator or sub-investigators for any other reason.

Design outcomes

Primary

MeasureTime frame
Proportion of patients who had an improvement in the face scale of abdominal pain under 2 within 20 minutes after salbutamol inhalation

Secondary

MeasureTime frame
Proportion of cases in which abdominal pain due to food allergy disappeared within 20 minutes after inhalation of the investigational drug Time to resolution of abdominal pain after inhalation of the investigational drug Proportion of cases in which adrenaline was used after inhalation of the investigational drug Heart rate before and after inhalation of the investigational drug (up to 40 minutes)

Contacts

Public ContactYuri Takaoka

Osaka Habikino Medical Center

zvb11075@nifty.com+81-72-957-2121

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026