ClinicalTrials.gg
Not yet recruitingNCT07900594MilkBATUpdated Oct 28, 2026

Performance of the Basophil Activation Test in the Diagnosis of IgE-mediated Cow's Milk Allergy in Infants and Evaluation of Hydrolysate Allergenicity.

An interventional study of Basophil activation test and quality of life questionnaire in Milk Allergy, sponsored by Odense University Hospital. Not yet recruiting. Open to participants aged 0 Weeks to 47 Months. Per ClinicalTrials.gov, last updated 2026-10-28.

Sponsored by Odense University Hospital · Not applicable, Interventional, and Diagnostic

Updated Oct 28, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Not applicable
Ages
0 Weeks to 47 Months
Sex
All
01

Study summary

The goal of this clinical trial is to investigate if the basophil activation test (BAT) represents a safer, faster, and more cost-effective diagnostic modality than the state-of-the art diagnostic work-up (specifik IgE and oral food provocation test) in infants with a suspicion of milk allergy.

The main questions it aims to answer are:

  1. If the BAT has superior diagnostic specificity compared to sIgE alone when diagnosing milk allergy
  2. If the BAT is able to measure the allergenicity of hydrolysates
  3. If implementing the BAT in the diagnostic work-up of milk allergy will be cost-effective by reducing in-hospital food challenges
  4. If QoL is higher after an OFC compared with before the OFC, irrespective of the outcome of the OFC

Participants who undergo usual asessment for milk allergy (that is IgE measurement in blood and oral food provocation) will be asked to

  1. deliver blood for BAT (extra 3 ml when blood for IgE measurement is drawn)
  2. The parents will be asked to fullfill a QoL questionnaire
Read the detailed description

To investigate if the BAT test is better than the specific IgE analysis for milk to predict the outcome of an oral food provocation test with milk, we need a blood test from 100 infants under assessment for milk allergy.

The blood from allergic children will also be used to investigate if BAT can measure the allergenicity of milk hydrolysates.

Finally, we will use a validated questionnaire to evaluate QoL before and after a food provocation test

02

Conditions studied

  • Milk Allergy

Browse trials for

Keywords

  • milk allergy
  • BAT
  • QoL
03

In context

Milk Hypersensitivity

138 studies on the registry are indexed under Milk Hypersensitivity; 28 are open to participants now.

This study's planned enrollment of 100 is above the median of 70 across 89 interventional studies indexed under Milk Hypersensitivity.

Browse Milk Hypersensitivity studies →

Lead sponsor

Odense University Hospital is the lead sponsor of 478 studies on the registry; 109 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
0 Weeks to 47 Months
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age: less than 4 years
  2. History of Type 1 milk allergy
  3. Clinically indicated for diagnostic work-up of cow's milk allergy involving blood sampling (sIgE) and scheduled in-hospital oral food challenge test d Signed informed consent from parent(s) / legal guardian(s).

Exclusion criteria

Exclusion Criteria:

  1. Children who previously have underwent an OFC for milk
  2. Children who have received biological treatment or systemic steroids
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    BAT

    All included children will have a BAT-analysis that will be compared with the IgE measurement

    Diagnostic Test: Basophil activation test · Other: quality of life questionnaire

Interventions

  • Diagnostic testBasophil activation test

    BAT-analysis will be performed at the same time as the IgE-analysis and before the oral food provocation

  • Otherquality of life questionnaire

    FAQLQ-PF

06

What researchers measure

Primary outcomes

  1. The sensitivity and specificity of BAT

    To determine the performance of the BAT to predict the outcome of the Oral Food Challenge (reference standard) for children suspected of IgE-mediated CMA. The Oral Food challenge is the gold standard for diagnosing food allergy. It is a dichotomous variable (positive or negative). The sensitivity and the specificity of the BAT alone and BAT in combination with IgE will be calculated.

    Time frame: from enrollment to the oral food provocation test, approximately 2-6 months

Secondary outcomes

  1. The allergenicity of hydrolysate compared with Milk powder

    Using blood from sensitized infants, dose-response curves from BAT using hydrolysates will be compared with dose-response curves from BAT using milk powder

    Time frame: from enrollment to the oral food provocation test, approximately 2-6 months

  2. The optimal allergen concentration for BAT

    Using the dose-response curve to determine if the standard manufacturer-recommended allergen concentration (22ng/ml) is the optimal for diagnosing food allergy

    Time frame: from enrollment to the oral food provocation test, approximately 2-6 months

  3. QoL

    The quality of life (QoL) before the OFC will be compared with the QoL after the OFC using the validated questionnaire for children with food allergy: FAQLQ-PF

    Time frame: from enrollment to the oral food provocation test, approximately 1-7 months

  4. The cost of a BAT compared with the cost of an oral food provocation

    A calculation of the potential economic gain by performing a BAT instead of an oral food provocation.

    Time frame: from enrollment to the oral food provocation test, approximately 2-6 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No — If relevant, data will be shared with colleagues

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jan 2027; primary completion for Jun 2029, 29 months later.

Of 33 interventional studies with no phase under Milk Hypersensitivity, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 48. This study's planned 29 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 15, 2026
First posted
Oct 28, 2026
StartEst.
Jan 1, 2027
Primary completionEst.
Jun 30, 2029
CompletionEst.
Dec 31, 2029
Last update
Oct 28, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Registered
First appeared on the registry. No changes since
Oct 28, 2026
Show all 1 update
  1. Oct 28, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07900594
Responsible party
Josefine Gradman (MD, PhD, Odense University Hospital) — Principal investigator
First posted
Oct 28, 2026
Start date
Jan 1, 2027 (estimated)
Primary completion
Jun 30, 2029 (estimated)
Completion
Dec 31, 2029 (estimated)
Last update
Oct 28, 2026

Study contacts

Josefine Gradman, MD, PhD
Contact
josefine.gradman@rsyd.dk
+45 24608127
Jane Clemensen, Professor
Contact
jane.clemensen@rsyd.dk
+45 24342024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion