HYBRID: Hydrogen Breath Test in Lactose Digestion

Not Applicable

Completed

Conditions: Lactose Intolerance

Interventions: Other: Non-fermented infant milk formula
Other: Fermented infant milk formula

Registration Number: NCT02703987

Lead Sponsor: Danone Asia Pacific Holdings Pte, Ltd.

Brief Summary: The purpose of this study is to investigate the effect of a fermented infant formula on lactose digestion in lactose intolerant adults.

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: Male

Target Recruitment: 30

Inclusion Criteria

BMI between 18.5 and 24.9 kg/m2 inclusive Lactose intolerant

The following criteria need to be checked at visit 2:

Lactose intolerance confirmed by positive Hydrogen Breath Test (HBT) (i.e. if there are two or more samples with hydrogen level > 20 ppm increase compared to baseline sample between 90 mins and 240 min sampling time point).
At least one sample with hydrogen level > 20 ppm increase compared to baseline between 90 mins and 180 mins sampling time point.

Exclusion Criteria

History of gastrointestinal disorders Current illness which could interfere with the study (e.g. diarrhea, regurgitation) Any history of cow's milk protein allergy or known allergy to galacto-oligosaccharides Any current participation or within 8 weeks of study start, in any other study involving investigational or marketed products, any medical procedures, or any surgical methods.

Any antibiotic, laxative or colonic cleansing treatments within 4 weeks of study start Any administration of probiotic in the 1 week prior to study start Investigator's uncertainty about willingness or ability of subject to comply with protocol requirements

The following criteria need to be checked at visit 2:

Level of hydrogen > 20 ppm in the baseline breath sample.
An early peak of hydrogen (i.e. hydrogen level > 20 ppm increase compared to baseline value) in the first 60 minutes after ingestion of the study products.

Study & Design

Study Type: INTERVENTIONAL

Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Group II	Non-fermented infant milk formula	Non-fermented infant milk formula
Group I	Fermented infant milk formula	Fermented infant milk formula

Primary Outcome Measures

Name	Time	Method
Log of First Postprandial Peak Change of Hydrogen Concentration	Postprandial peak hydrogen in breath within 4 hours after ingestion of study product; samples taken at 30 minute intervals for 4 hours, i.e. at 90, 120, 150, 180, 210 and 240 minutes at Visits 3 and 4	This is measured as the log of the first change \>20ppm peak value compared to baseline between 90 minutes and 240 minutes. If there was no change \>20ppm at all between 90 minutes and 240 minutes, it is the maximum change compared to baseline in that interval
Log of Maximum Postprandial Change in Hydrogen Concentration	Maximum postprandial hydrogen in breath within 4 hours after ingestion of study product; samples taken at 30 minute intervals for 4 hours, i.e. at 90, 120, 150, 180, 210 and 240 minutes at Visits 3 and 4	This is measured as the maximum change in postprandial hydrogen concentration (ppm) compared to baseline between 90 minutes and 240 minutes

Secondary Outcome Measures

Name	Time	Method
Square Root of Postprandial Incremental Area Under Curve (iAUC) of Hydrogen Concentration From 30 Minutes to 240 Minutes	Hydrogen in breath within 4 hours after ingestion of study product; samples taken at 30 minute intervals for 4 hours, i.e. at 30, 60, 90, 120, 150, 180, 210 and 240 minutes at Visits 3 and 4	The iAUC of hydrogen concentration from 30 to 240 minute sampling time points is calculated with the triangular rule (reference: Wolever TM. Effect of blood sampling schedule and method of calculating the area under the curve on validity and precision of glycaemic index values. Br J Nutr. 2004 Feb;91(2):295-301). The square root of the iAUC is then taken for the outcome measure