NCT07114133Enrolling by invitation
A Study on the Efficacy of Environmental Probiotics in Patients With Cat Hair Allergies
Source: ClinicalTrials.gov · Last updated 11 Aug 2025 · Not updated for over 12 months - ask the site whether it is still open
Brief summary (registry, in English)
Objective of this clinical trial: The goal of this clinical study is to evaluate whether an environmental probiotic spray can improve symptoms in adults with cat allergy-induced allergic rhinitis (AR) and allergic asthma (AA). It will also assess the safety of the probiotic spray. The main questions it aims to answer are: Does the environmental probiotic spray reduce the severity of nasal and asthma symptoms in participants? Are there any adverse effects observed in participants using the probiotic spray? Researchers will compare the environmental probiotic spray group to a placebo group (a look-alike spray containing no active ingredients) to determine if the probiotic spray is effective in managing allergic rhinitis and asthma symptoms. Participants will: Receive the environmental probiotic spray or placebo daily for 3 months Attend monthly clinic visits for checkups and assessments Undergo a final evaluation at 3 months, including symptom scoring and safety checks Key Assessments: Total Nasal Symptom Score (TNSS) for allergic rhinitis Asthma Control Test (ACT) score for allergic asthma
- Status (registry)
- Enrolling by invitation
- Study type
- Interventional
- Enrollment
- 100 (estimated)
- First submitted
- 20 Jul 2025
- Start date
- 30 Jun 2025
- Primary completion date
- 30 Jun 2026
- Lead sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
- Diseases
- Asthma
- NCT number
- NCT07114133
What you commit to
- Study type: Interventional
- Planned participants: 100
- From 30 Jun 2025 to the primary completion date, 30 Jun 2026
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Current or planned use of biologic therapy;
Other illness
- Presence of other severe systemic diseases;
- Any other condition that, in the investigator's judgment, may pose significant risks to the participant if enrolled in the study.
Other
- Residence duration \< 3 months or plans to change residence within the next 6 months;
- Pregnancy;
Who the study is looking for
- Age 18-70 years；
- Diagnosed with cat allergy (cat dander-specific IgE level ≥ class 2: \> 0.7 IU/mL) and allergic rhinitis with or without allergic asthma;
- Residing in the same living environment for at least 3 months (and no plans to change residence within the next 6 months);
- Patients receiving conventional symptomatic treatment.
Age in the registry: 18 years to 70 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Second Affiliated Hospital of Zhejiang University School of Medicine Coordinator of this site? Confirm its status | Hangzhou | China | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.