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Table 3 Study visits and procedures

From: Tolerance induction through early feeding to prevent food allergy in infants and children with sensitization against food allergens (TIFFANI): rationale, study design, and methods of a randomized controlled trial

 

Visit 1 (V1)

Phone call 1 (PC1)

Visit 2 (V2)

Time

0 weeks, baseline

2 weeks (± 5 days) after V1

3–6 months after V1 ± 14 days

Informed consent

x

  

Check eligibility

x

  

Randomization

x

  

Demographics/subject characteristics

x

 

x

Family characteristics

x

 

x

Medical history

x

 

x

Review adverse events (AEs)

 

x

x

Review concomitant medication

x

x

x

Nutritional characteristics

x

 

x

Physical examination

x

 

x

SCORAD, EASIscore (in case of eczema)

x

 

x

Transepidermal water loss measurement (TEWL)

x

 

x

Palmar hyperlinearity

X

  

Skin prick testing

(x)a

 

x

Skin swabs

x

 

x

Saliva sampling

x

 

x

Stool sampling

x

 

x

Dust sampling

x

 

x

Blood sampling

(x)a

 

x

Oral food challenge

  

x

Dispensation of the study product

x

  

Feeding of the study product at the site

x

  

Review tolerance study product

 

x

x

  1. aBlood will be collected, or a skin prick test will be performed at V1, if the child’s sensitization status was assessed ≥ 3 months prior to enrollment