Serum Esnophilic Cationic Protein Level as Diagnostic Marker in Cow Milk Protein Allergy Infants

NCT ID: NCT04684329

Last Updated: 2020-12-24

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 84 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2021-01-31
• Study Completion Date: 2022-03-31

Brief Summary

Characterize the degree of the activation of serum eosinophilc cationic protein (sECP) by measuring its level and establishing whether it is a useful parameter in monitoring oral cow's milk allergy Measure the MPV and NLR levels in infants with CMPA and to determine the suitability of these parameters as biomarkers in diagnosis of CMPA.

Detailed Description

Cow's milk protein allergy (CMPA) is the most common cause of food allergies in children with incidence estimated as 2% to 7.5% in the first year of life and is characterized by an inflammatory reaction to milk proteins, Formula and exclusively breast-fed babies can develop CMPA.

The immunologic mechanism behind the development of CMPA is not yet clear. However, it is clear that CMPA is caused by IgE- as well as non-IgE-mediated immune reactions, IgE-mediated CMPA is better described and it is typically immediate, type 1 hypersensitivity (minutes to 2 hours after consumption of cow's milk) while non IgE- mediated CMPA is delayed, type 4 hypersensitivity. a diverse range of symptoms of variable intensity in infants.

Combinations of immediate and delayed reactions to the same allergen may occur in the same patient, symptoms and signs related to CMPA may involve many different organ systems, mostly the skin and the gastro- intestinal and respiratory tracts. The involvement of two systems increases the probability of CMPA, whereas some symptoms are more likely to be present in infant with a positive test for CMP-specific IgE (eg, angioedema, atopic eczema); however, there is a large overlap. The same symptoms may appear in CMP IgE-positive and IgE-negative patients, particularly in infant with gastrointestinal manifestations.

Studies in unselected infants with CMPA show that approximately half of them have atopic eczema, and 25% to 50% are affected by some gastrointestinal tract involvement whereas other clinical manifestations are less common.

It is important to accurately diagnose CMPA to avoid the consequences of either under- or overdiagnosis, skin prick test and serum specific IgE tests are helpful for diagnosis, mainly in IgE-mediated forms . On the other hand, in cases of CMPA with gastrointestinal chronic signs and symptoms, skin prick test and specific IgE tests are usually negative.

This is the reason why the only reliable method of diagnosis in such cases is a food challenge that need to be done in hospital and could be also dangerous, this explain why there is a growing interest to find new biomarkers for diagnosis and follow up.Eosinophil cationic protein (ECP) is a cytotoxic protein released from eosinophils upon activation the measurement of ECP levels can be used as a non invasive indicator to detect active inflammation in the body.

Conditions

Cow Milk Allergy

Study Design

• Observational Model Type: CASE_ONLY
• Study Time Perspective: PROSPECTIVE

Eligibility Criteria

Inclusion Criteria

• All infants (0-12 month) suspected with CMPA

Exclusion Criteria

• Infants with genetic, metabolic, haematological, or infectious (e.g. :infectious gastroenteritis) diseases will be excluded from the study

• Maximum Eligible Age: 12 Months
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Assiut University

OTHER

Sponsor Role: lead

Responsible Party

Ahmed abdelsalam mohamed

doctor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Assuit university

Asyut, Assuit, Egypt

Countries

Egypt

Central Contacts

Ahmed abdelsalam mohamed

Role: CONTACT

Phone: 01005869830

Email: ahmedfresh86@yahoo.com

Facility Contacts

ahmed abdelsalam, master

Role: primary

Other Identifiers

cow milk protein allergy

Identifier Type: -

Identifier Source: org_study_id