Obesity & OverweightNUTRITRACKNCT07588620
NutriTrack: AI-Assisted Nutritional Tracking in the Obesity Clinic
An observational study of Obesity & Overweight, run by Francisco José García González at 1 site in Spain.
Trial summary
NutriTrack is a digital health application designed to support nutritional and behavioral tracking in patients with obesity followed in an outpatient obesity clinic. The application allows patients to record food intake using food photographs, barcode scanning, or manual search, and to register behavioral variables… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Obesity & Overweight
- What is being tested?
- NutriTrack digital health application
- How many people
- 24 participants
- Where
- 1 siteSpain
- Study dates
- 15 Jun 2026to 27 Aug 2026
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Adult patients with obesity or overweight with comorbidities who are in active follow-up at the Obesity Clinic of Hospital Clínico San Carlos and who have regular access to and use of a smartphone with iOS or Android operating system.
Who may be able to join
- Age 18 years or older.
- Diagnosis of obesity, defined as body mass index 30 kg/m2 or higher, or overweight with comorbidities, defined as body mass index 27 kg/m2 or higher.
- Active follow-up at the Obesity Clinic of Hospital Clínico San Carlos.
- Regular possession and use of a smartphone with iOS or Android operating system.
- Ability to read and understand Spanish.
- Signed informed consent.
Who cannot join
- Active diagnosed eating disorder, including anorexia nervosa, bulimia nervosa, or binge eating disorder.
- Cognitive impairment preventing autonomous use of the application.
- Simultaneous participation in another nutritional intervention study.
- Inability or refusal to use mobile technology.
- Current pregnancy or breastfeeding.
- Acute medical condition requiring hospitalization during the study period.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: NutriTrack: An Artificial Intelligence Application for Nutritional and Behavioral Tracking in Patients With Obesity in an Outpatient Obesity Clinic: A Prospective Observational Pilot Study
NutriTrack is a digital health application designed to support nutritional and behavioral tracking in patients with obesity followed in an outpatient obesity clinic. The application allows patients to record food intake using food photographs, barcode scanning, or manual search, and to register behavioral variables related to eating episodes.
This prospective, single-center, observational pilot study will evaluate the feasibility and usability of NutriTrack in 20 to 50 adult patients with obesity or overweight with comorbidities followed at the Obesity Clinic of Hospital Clínico San Carlos. Participants will use the application for 4 weeks as a complementary tool. The information generated by NutriTrack will be available to healthcare professionals as supportive information and will not replace clinical judgment or modify usual care decisions.
The main outcome is usability measured using the System Usability Scale. Secondary and exploratory outcomes include agreement between artificial intelligence-based nutritional estimates and standard dietitian assessment, adherence to daily food logging, professional perceived clinical utility, changes in eating behavior and emotional regulation scales, and technical feasibility of data export.
Read the detailed description
NutriTrack is a digital health application developed within Hospital Clínico San Carlos and Universidad Complutense de Madrid to support nutritional and behavioral tracking in patients with obesity. The application integrates artificial intelligence-based food image recognition, the Spanish BEDCA nutritional database, and a rule-based engine for the detection of clinically relevant eating patterns.
This is a prospective, single-center, observational pilot study with complementary clinical use. The application will be used by adult patients followed at the Obesity Clinic for 4 weeks. Participants will record daily food intake and behavioral variables related to eating episodes, including hunger, satiety, emotional state, eating context, eating speed, perceived control, and cravings.
Healthcare professionals may review the NutriTrack clinical panel as supportive information. The application output will not replace clinical judgment, will not trigger automated clinical decisions, will not modify usual care, and will not be integrated into the hospital electronic health record during the pilot phase.
The study will assess usability, nutritional estimation accuracy, adherence to food logging, professional perceived clinical utility, exploratory changes in emotional regulation and eating behavior, and technical feasibility of data export. The study is intended to generate preliminary evidence to support future larger-scale validation.
- Conditions
- Obesity & Overweight
- Being tested
- NutriTrack digital health application
- Keywords
- Digital health, Artificial intelligence, Nutritional tracking, Food recognition, Mobile health, Eating behavior, Usability
- Medical subject headings
- Obesity, Overweight, Feeding Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
NutriTrack digital health applicationOther
Also called NutriTrack
NutriTrack is a digital health application used for nutritional and behavioral tracking. Patients record food intake using food photographs, barcode scanning, or manual search, and report behavioral variables such as hunger, satiety, emotional state, eating context, eating speed, perceived control, and cravings. The application output is informational, requires healthcare professional supervision, and does not replace clinical judgment or modify usual care.
| Study group | Role | What they receive |
|---|---|---|
| NutriTrack Observational Cohort | Adult patients with obesity or overweight with comorbidities followed at the Obesity Clinic of Hospital Clínico San Carlos who will use the NutriTrack application for 4 weeks as a complementary nutritional and behavioral tracking tool. Receives: Other: NutriTrack digital health application |
What is being measured
The primary outcome is the main question the study is designed to answer.
System Usability Scale score
Usability of the NutriTrack application measured using the System Usability Scale. The score ranges from 0 to 100, with higher scores indicating better usability. A score of 70 or higher will be considered acceptable.
Measured: Week 4
Secondary outcomes (3)
Correlation between AI-based caloric estimation and dietitian assessment
Correlation between caloric estimation obtained using NutriTrack artificial intelligence-based food image recognition and standard dietitian-nutritionist assessment.
Measured: Week 4
Adherence to daily food logging
Percentage of days with complete food intake records during the 4-week follow-up period.
Measured: From baseline to Week 4
Healthcare professional perceived clinical utility score
Perceived clinical utility of the NutriTrack tool assessed by the healthcare professional using the NutriTrack Healthcare Professional Satisfaction Questionnaire, an ad hoc (non-validated) instrument developed for this study. Clinical utility is rated on a single global item scored from 0 to 10, where 0 is the minimum and 10 is the maximum. Higher scores indicate greater perceived clinical utility (better outcome).
Measured: Week 4
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 May 2026
- Study start15 Jun 2026
- Primary completion8 Aug 2026
- Study completion27 Aug 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Obesity & OverweightStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 24 participants (actual)
Sponsor and investigators
- Lead sponsor
- Francisco José García González
- Sponsor type
- University, hospital or other
- Collaborators
- Hospital San Carlos, Madrid
- Responsible party
- Sponsor-investigator, Francisco José García González, Universidad Complutense de Madrid
- Investigators
- Francisco José García González, PhD, RN, Principal investigator, Hospital Clínico San Carlos / Universidad Complutense de Madrid
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07588620
- Sponsor's protocol ID
- NUTRITRACK-CEI-HCSC-2026-001
- Acronym
- NUTRITRACK
- Status last verified
- Sep 2026
- First submitted
- 6 May 2026
- Last updated
- 25 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Ministerio de Sanidad. Base de Datos Española de Composición de Alimentos (BEDCA). 2023.
Gratz KL, Roemer L. Multidimensional assessment of emotion regulation and dysregulation. Journal of Psychopathology and Behavioral Assessment. 2004;26(1):41-54.
Fairburn CG, Beglin SJ. Eating Disorder Examination Questionnaire (EDE-Q 6.0). Guilford Press; 2008.
Brooke J. SUS: A quick and dirty usability scale. Usability Evaluation In Industry. 1996;189(194):4-7.
Study at a glance
From the registry record, last updated by the sponsor on 25 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- NutriTrack: An Artificial Intelligence Application for Nutritional and Behavioral Tracking in Patients With Obesity in an Outpatient Obesity Clinic: A Prospective Observational Pilot Study
- ClinicalTrials.gov ID
- NCT07588620
- Acronym / sponsor ID
- NUTRITRACK / NUTRITRACK-CEI-HCSC-2026-001
- Conditions
- Obesity & Overweight
- Keywords
- Digital health, Artificial intelligence, Nutritional tracking, Food recognition, Mobile health, Eating behavior, Usability
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 24 participants (actual)
- Lead sponsor
- Francisco José García GonzálezUniversity, hospital or other
- Collaborators
- Hospital San Carlos, Madrid
- Study start
- 15 Jun 2026 (actual)
- Primary completion
- 8 Aug 2026 (actual)
- Study completion
- 27 Aug 2026 (actual)
- First posted
- 15 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
NutriTrack is a digital health application designed to support nutritional and behavioral tracking in patients with obesity followed in an outpatient obesity clinic. The application allows patients to record food intake using food photographs, barcode scanning, or manual search, and to register behavioral variables related to eating episodes.
This prospective, single-center, observational pilot study will evaluate the feasibility and usability of NutriTrack in 20 to 50 adult patients with obesity or overweight with comorbidities followed at the Obesity Clinic of Hospital Clínico San Carlos. Participants will use the application for 4 weeks as a complementary tool. The information generated by NutriTrack will be available to healthcare professionals as supportive information and will not replace clinical judgment or modify usual care decisions.
The main outcome is usability measured using the System Usability Scale. Secondary and exploratory outcomes include agreement between artificial intelligence-based nutritional estimates and standard dietitian assessment, adherence to daily food logging, professional perceived clinical utility, changes in eating behavior and emotional regulation scales, and technical feasibility of data export.
Detailed description
NutriTrack is a digital health application developed within Hospital Clínico San Carlos and Universidad Complutense de Madrid to support nutritional and behavioral tracking in patients with obesity. The application integrates artificial intelligence-based food image recognition, the Spanish BEDCA nutritional database, and a rule-based engine for the detection of clinically relevant eating patterns.
This is a prospective, single-center, observational pilot study with complementary clinical use. The application will be used by adult patients followed at the Obesity Clinic for 4 weeks. Participants will record daily food intake and behavioral variables related to eating episodes, including hunger, satiety, emotional state, eating context, eating speed, perceived control, and cravings.
Healthcare professionals may review the NutriTrack clinical panel as supportive information. The application output will not replace clinical judgment, will not trigger automated clinical decisions, will not modify usual care, and will not be integrated into the hospital electronic health record during the pilot phase.
The study will assess usability, nutritional estimation accuracy, adherence to food logging, professional perceived clinical utility, exploratory changes in emotional regulation and eating behavior, and technical feasibility of data export. The study is intended to generate preliminary evidence to support future larger-scale validation.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| NutriTrack Observational Cohort | – | Other: NutriTrack digital health applicationAdult patients with obesity or overweight with comorbidities followed at the Obesity Clinic of Hospital Clínico San Carlos who will use the NutriTrack application for 4 weeks as a complementary nutritional and behavioral tracking tool. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Adult patients with obesity or overweight with comorbidities who are in active follow-up at the Obesity Clinic of Hospital Clínico San Carlos and who have regular access to and use of a smartphone with iOS or Android operating system.
Key inclusion criteria (6 listed)
- Age 18 years or older.
- Diagnosis of obesity, defined as body mass index 30 kg/m2 or higher, or overweight with comorbidities, defined as body mass index 27 kg/m2 or higher.
- Active follow-up at the Obesity Clinic of Hospital Clínico San Carlos.
- Regular possession and use of a smartphone with iOS or Android operating system.
- Ability to read and understand Spanish.
Key exclusion criteria (6 listed)
- Active diagnosed eating disorder, including anorexia nervosa, bulimia nervosa, or binge eating disorder.
- Cognitive impairment preventing autonomous use of the application.
- Simultaneous participation in another nutritional intervention study.
- Inability or refusal to use mobile technology.
- Current pregnancy or breastfeeding.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| NutriTrack digital health applicationAlso: NutriTrackNutriTrack is a digital health application used for nutritional and behavioral tracking. Patients record food intake using food photographs, barcode scanning, or manual search, and report behavioral variables such as hunger, satiety, emotional state, eating context, eating speed, perceived control, and cravings. The application output is informational, requires healthcare professional supervision, and does not replace clinical judgment or modify usual care. | Other | NutriTrack Observational Cohort |
Primary outcome
System Usability Scale score
Time frame: Week 4
Usability of the NutriTrack application measured using the System Usability Scale. The score ranges from 0 to 100, with higher scores indicating better usability. A score of 70 or higher will be considered acceptable.
3 secondary outcomes
Correlation between AI-based caloric estimation and dietitian assessment
Time frame: Week 4
Adherence to daily food logging
Time frame: From baseline to Week 4
Healthcare professional perceived clinical utility score
Time frame: Week 4
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Sep 2026.
- BackgroundMinisterio de Sanidad. Base de Datos Española de Composición de Alimentos (BEDCA). 2023.
- BackgroundGratz KL, Roemer L. Multidimensional assessment of emotion regulation and dysregulation. Journal of Psychopathology and Behavioral Assessment. 2004;26(1):41-54.
- BackgroundFairburn CG, Beglin SJ. Eating Disorder Examination Questionnaire (EDE-Q 6.0). Guilford Press; 2008.
- BackgroundBrooke J. SUS: A quick and dirty usability scale. Usability Evaluation In Industry. 1996;189(194):4-7.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Francisco José García González, PhD, RN principal investigator
Hospital Clínico San Carlos / Universidad Complutense de Madrid
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Obesity & Overweight, run by Francisco José García González at 1 site in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 25 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
System Usability Scale score (time frame: Week 4). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07588620, which also lists 4 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Sep 2026.