NCT07631039

Brief Summary

This study, aimed at validating decision trees developed through collaboration between general practitioners and allergists, seeks to provide French data to optimize care pathways for patients with allergic diseases from the primary care level and to reduce the delays and negative consequences associated with incorrect diagnoses. Most patients with allergic conditions are initially seen in primary care, often during exacerbations. Although allergies, in their many clinical forms, account for approximately 6-8% of primary care consultations, clinicians frequently receive little or no formal training in this field and may not be fully aware of the latest evidence, associated risks, or appropriate referral pathways. These gaps can significantly affect the quality of care and patients' quality of life, while also contributing to higher morbidity and mortality. In this context, the European Academy of Allergy and Clinical Immunology established a multidisciplinary task force to transform existing allergy guidelines into simple, practical, and accessible tools to facilitate diagnosis and management in primary care. The group developed five decision trees covering asthma, anaphylaxis, drug allergy, food allergy, rhinitis, and urticaria to support primary care physicians and other non-specialists in managing patients with symptoms suggestive of allergic or hypersensitivity reactions. The results of this project will be directly applicable to the daily clinical practice of general practitioners in France and could serve as a model for replication in other regions and countries, although adaptations may be required depending on national healthcare systems.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
600

participants targeted

Target at P75+ for not_applicable

Timeline
49mo left

Started Sep 2026

Longer than P75 for not_applicable

Geographic Reach
1 country

10 active sites

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 27, 2026

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 5, 2026

Completed
3 months until next milestone

Study Start

First participant enrolled

September 1, 2026

Expected
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2030

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2030

Last Updated

June 5, 2026

Status Verified

May 1, 2026

Enrollment Period

4 years

First QC Date

May 27, 2026

Last Update Submit

June 2, 2026

Conditions

Keywords

diagnosisgeneral practitionerflowchartcare pathway

Outcome Measures

Primary Outcomes (1)

  • Rate of referral to allergy specialists following primary care consultations for allergic diseases

    Comparison of the proportion of patients referred to an allergy specialist by general practitioners after consultations for suspected allergic diseases before and after implementation of the clinical decision trees in participating centers.

    through study completion, an average of 4 years

Secondary Outcomes (1)

  • Ease of use of the clinical decision trees

    through study completion, an average of 4 years

Study Arms (2)

Interventional arm

EXPERIMENTAL

Patients consulting in participating centers after implementation of decision trees designed to support physicians in the diagnosis and management of allergic diseases

Other: Implementation of an innovative tool based around AI-automated decision trees on an application

Non-interventional arm

NO INTERVENTION

Patients consulting in participating centers before implementation of clinical decision trees intended to support physicians in the diagnosis and management of allergic diseases.

Interventions

The application provides immediate access to the algorithms (decision trees). Investigators can access a dedicated interface and enter participant data, including the suspected diagnosis, symptoms, acute episode or history of allergic disease, and the medical decision made (diagnosis, therapeutic management, or referral to a specialist). Management options based on the five algorithms are then generated to support physicians in the diagnosis and management of allergic diseases.

Interventional arm

Eligibility Criteria

Age1 Year+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with suspected asthma, anaphylaxis, drug allergy, food allergy, rhinitis and urticaria.
  • Patient or legal representative of the minor patient who agrees to participate in the research.

You may not qualify if:

  • Adults placed under guardianship or curatorship.
  • Patients already followed by an allergist and/or a specialist doctor for their allergies.
  • Patients who participate in a clinical research study relating to an antiallergic medication, immunosuppressant, immunomodulator in the year preceding their consultation visit with the GP.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

Msp Espace Sante Servian

Béziers, Occitanie, 34500, France

Location

MSP Universitaire Avicenne

Cabestany, Occitanie, 66330, France

Location

Msp Montpellier -Cevenne

Montpellier, Occitanie, 34080, France

Location

Msp Narbo Ouest

Narbonne, Occitanie, 11100, France

Location

Msp Charles Gide

Nîmes, Occitanie, 30000, France

Location

Msp Beau Art

Perpignan, Occitanie, 66000, France

Location

MSP Calypso

Roujan, Occitanie, 34320, France

Location

Département Universitaire de Médecine Générale MSPU CHU Montpellier

Saint-Georges-dOrques, Occitanie, 34680, France

Location

Msp Sud Minevoir

Saint-Marcel-sur-Aude, Occitanie, 11120, France

Location

MSP Pézenas-Tourbes

Tourbes, Occitanie, 34120, France

Location

MeSH Terms

Conditions

HypersensitivityDisease

Condition Hierarchy (Ancestors)

Immune System DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Pascal DEMOLY, Pr

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SEQUENTIAL
Model Details: Stepped-wedge cluster randomized study design. Participants are enrolled in 10 investigation centers. Centers (clusters), rather than individual participants, are randomized according to a stepped-wedge cluster design, with sequential implementation of the intervention at predefined time periods until all centers receive the intervention.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 27, 2026

First Posted

June 5, 2026

Study Start (Estimated)

September 1, 2026

Primary Completion (Estimated)

September 1, 2030

Study Completion (Estimated)

September 1, 2030

Last Updated

June 5, 2026

Record last verified: 2026-05

Locations