DelfaGLP-1 Atlas

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BrainFood

Active not recruiting

How Altered Gut-Brain-Axis Influences Food Choices: Part 2 (BrainFood)

How Altered Gut-Brain-Axis Influences Food Choices. (BrainFood) Part 2: Digital Receipts

Lead sponsor

Lia Bally

Asset

GLP-1 / incretin class catch-all

Listed sites

1

Recruiting sites

—

Enrollment

61

actual

Study population

Obesity / overweight

Key I/E criterion

•BMI ≥30

Primary endpoints

•Changes in food purchase behaviour on the basis of the Healthy Trolley Index•Changes in food purchase behaviour on the basis of the Grocery Purchase Quality•Changes in food purchase behaviour on the basis of food groups

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT04788836
Org study IDBrainFood Part 2

Timeline

Milestones

Study first posted2021-03-09actual
Study start2021-11-01actual
Last update posted2025-06-25actual
Primary completion2026-12estimated (month precision)
Study completion2026-12estimated (month precision)

Assets

Investigational agents

GLP-1 / incretin class catch-all

Study populations

Who this study enrolls

Obesity / overweight

Eligibility

Who can enroll

Minimum age18 Years
SexAll
Healthy volunteersNot accepted
Sampling methodNon probability sample

Study population text

A minimum of 60 (up to a maximum of 150) overweight/obese adults planned for or who started surgical or non-surgical obesity treatment within the past 6 months will be recruited for this study. Participants will be recruited by referral from our outpatient endocrine clinic and collaborating Centres of Excellence for Metabolic Surgery.

Inclusion criteria

•Female and male subjects aged 18 years or older
•Proficient in German (including written)
•BMI≥30kg/m2 or BMI≥28kg/m2 with adiposity-related comorbidities (prediabetes, type 2 diabetes mellitus, hypertension, dyslipidemia)
•Referred for obesity treatment or who started obesity treatment within 6 months (surgical or non-surgical)
•Primary grocery shopping at the Swiss biggest grocery retailers (Coop, Migros), and regularly using a loyalty card (Cumulus and/or Supercard)

Exclusion criteria

•Incapacity to give informed consent
•Primary shopping in other food retailers (e.g. Aldi, Lidl, outside of Switzerland, etc.)

Endpoints (24)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Coverage by outcome category

Other clinical outcomes
20
Other (unclassified)
3
Patient-reported / QoL
1

Patient-reported / QoL

1 endpoint
Other/protocol endpoint

Correlation between food purchase patterns (i.e. HETI, GPQI, food groups, nutrition facts, Nutri-Score) and self-perceived quality of life

Time frame:Pre-treatment until 5 years after start of obesity treatment

descriptive

Other clinical outcomes

20 endpoints
Primary/protocol endpoint

Changes in food purchase behaviour on the basis of the Healthy Trolley Index (HETI)

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Primary/protocol endpoint

Changes in food purchase behaviour on the basis of the Grocery Purchase Quality Index (GPQI)

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Primary/protocol endpoint

Changes in food purchase behaviour on the basis of food groups

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Primary/protocol endpoint

Changes in food purchase behaviour on the basis of nutrition facts

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Primary/protocol endpoint/low confidence

Changes in food purchase behaviour on the basis of the Nutri-Score

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Primary/protocol endpoint

Food purchase behaviour on the basis of the Healthy Trolley Index (HETI)

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Primary/protocol endpoint/low confidence

Food purchase behaviour on the basis of the Grocery Purchase Quality Index (GPQI)

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Primary/protocol endpoint

Food purchase behaviour on the basis of food groups

Time frame:Pre-treatment until 5 years after start of obesity treatment

descriptive

Primary/protocol endpoint

Food purchase behaviour on the basis of nutrition facts

Time frame:Pre-treatment until 5 years after start of obesity treatment

descriptive

Primary/protocol endpoint/low confidence

Food purchase behaviour on the basis of the Nutri-Score

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other/protocol endpoint/low confidence

Changes in daily carbohydrate intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, descriptive

Other/protocol endpoint/low confidence

Changes in daily sugar intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other/protocol endpoint/low confidence

Changes in daily protein intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, descriptive

Other/protocol endpoint/low confidence

Changes in daily fat intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other/protocol endpoint/low confidence

Changes in daily saturated fat intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other/protocol endpoint

Changes in daily sodium intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other/protocol endpoint/low confidence

Changes in daily vegetable intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other/protocol endpoint/low confidence

Changes in daily wholegrain intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other/protocol endpoint/low confidence

Changes in daily fruit intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other/protocol endpoint/low confidence

Changes in daily dessert intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, improvement

Other (unclassified)

3 endpoints
Other/protocol endpoint/low confidence

Changes in energy intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, descriptive

Other/protocol endpoint/low confidence

Changes in daily fibre intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, descriptive

Other/protocol endpoint/low confidence

Changes in daily meat intake

Time frame:Pre-treatment until 5 years after start of obesity treatment

change from baseline, descriptive

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 1, 2026
Endpoint classificationDelfa endpoint taxonomy v2 (May 13, 2026)
Results tableno registry results posted yet

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.