Lifestyle Intervention on Patients With Overweight or Obesity (LIO)

July 25, 2025 updated by: Juan F. Lisón Párraga, Dr, Cardenal Herrera University

Video-Guided Lifestyle Intervention Led by Patients' Own Doctor in Overweight and Obese Adult

This study aims to analyze the effects of a 3-month self-applied online program, focused on promoting healthy lifestyle habits (healthy eating and increased physical activity), on adults with obesity. Participants will be recruited by 8 doctors from 6 public Health Centers. These patients will be randomized allocated into two interventional groups: the experimental group will receive audiovisual instructions from their specialist doctor, and the control group from a doctor outside the patient. Assessment will include sociodemographic variables, body mass index, blood pressure, glycemic and lipid metabolism variables, physical activity level, adherence to the Mediterranean diet, therapeutic alliance, and health-related quality of life. The randomization process will be stratified according to BMI, therapeutic alliance, age, and sex.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Obesity or being overweight, even other associated comorbidities, involve a worrying public health problem. The evidence shows that healthy eating and regular physical exercise, monitored by different means (internet, face to face, exercise diaries), play an important prevention role to maintain health while ageing. In this way, Information and Communication Technologies (ICTs) have been demonstrated as a useful tool to promote health, working on barriers at the same time, such as low motivation and difficulties maintaining regular exercise and/or healthy eating habits. ICTs also allows to reach a wider audience at a lower cost, due to their good cost-benefit relationship and the possibility of increasing the efficiency of interventions. Therefore, this study aims to analyze the effects of a 3-month self-applied online program, focused on promoting healthy lifestyle habits (healthy eating and increased physical activity), on adults with obesity. Participants will be recruited by 8 doctors from 6 public Health Centers. These patients will be randomized allocated into two interventional groups: the experimental group will receive audiovisual instructions from their specialist doctor, and the control group from a doctor outside the patient. Assessment will include sociodemographic variables, body mass index, blood pressure, glycemic and lipid metabolism variables, physical activity level, adherence to the Mediterranean diet, therapeutic alliance, and health-related quality of life. The randomization process will be stratified according to BMI, therapeutic alliance, age, and sex.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
115

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: JUAN FRANCISCO LISÓN PÁRRAGA, PhD
  • Phone Number: 606503108
  • Email: JUANFRAN@UCHCEU.ES

Study Locations

  • Spain
    • Valencia-valència
      • València, Valencia-valència, Spain, 46006
        • Juan Fco. Lisón

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Overweight or grade I obesity (BMI > 25 and < 35).

Exclusion Criteria:

  • No access to the Internet or a smartphone.
  • Not having visited their doctor at least once in the last 2 years.
  • Meeting DSM-IV-TR criteria for an Eating Disorder.
  • Having a diagnosed serious psychological disorder (psychosis, bipolar disorder, major depressive disorder, substance abuse disorder, etc.).
  • Having any disability that prevents or hinders exercise and physical activity.
  • Receiving any weight loss treatment at another center.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Own Doctor Group
The experimental group will receive access to audiovisual instructions (exercise and nutritional education) given by their specialist doctor.
Other: Own Doctor Education
The self-applied online program will comprise a 3-month behavioural intervention seeking to develop gradually achieving the goals of changing eating and physical activity habits, supported by audiovisual instructions. This group will receive access to the internet-based lifestyle intervention (exercise and nutritional education), supported by audiovisual instructions given by their specialist doctor.
Active Comparator: Unknown Doctor Group
The control group will receive access to audiovisual instructions (exercise and nutritional education) given by an unknown doctor.
Other: Unknown Doctor Education
The self-applied online program will comprise a 3-month behavioural intervention seeking to develop gradually achieving the goals of changing eating and physical activity habits, supported by audiovisual instructions. This group will receive the same intervention, but in this case supported by audiovisual instructions given by a doctor outside the patient.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Body Mass Index
Time Frame: Baseline (pre-intervention) and immediately post-intervention (3 months).
Body Mass Index (BMI) is a measure of body weight relative to height, calculated by dividing a person's weight in kilograms by the square of their height in meters.
Baseline (pre-intervention) and immediately post-intervention (3 months).

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Blood Pressure
Time Frame: Baseline (pre-intervention) and immediately post-intervention (3 months).
Blood Pressure (BP) is the force exerted by circulating blood on the walls of the arteries. It is measured in millimeters of mercury (mmHg) and recorded as two values: systolic pressure (the pressure during heart contraction) over diastolic pressure (the pressure during heart relaxation).
Baseline (pre-intervention) and immediately post-intervention (3 months).
Physical Activity Level
Time Frame: Baseline (pre-intervention) and immediately post-intervention (3 months).
Levels of Physical Activity will be assessed using the Short International Physical Activity Questionnaire (Short-IPAQ). This tool evaluates the frequency, duration, and intensity of physical activity, as well as sedentary behavior, in daily life. It estimates total physical activity in MET-min/week and records time spent sitting, providing a standardized measure of physical activity levels.
Baseline (pre-intervention) and immediately post-intervention (3 months).
Adherence to the Mediterranean diet
Time Frame: Baseline (pre-intervention) and immediately post-intervention (3 months).
Adherence to the Mediterranean Diet will be assessed using the MEDAS (Mediterranean Diet Adherence Screener) from the PREDIMED study. This 14-item questionnaire evaluates adherence based on 12 questions about food consumption frequency and 2 questions on dietary habits associated with the Mediterranean diet. Each item is scored 0 or 1 point, with a total possible score ranging from 0 to 14 points. Higher scores indicate greater adherence.
Baseline (pre-intervention) and immediately post-intervention (3 months).
Therapeutic Alliance
Time Frame: Baseline (pre-intervention) and immediately post-intervention (3 months).
Therapeutic Alliance will be assessed using the Working Alliance Inventory (WAI) questionnaire. This tool evaluates the relationship between a patient and their therapist across three key dimensions: (1) therapeutic goals, (2) tasks, and (3) therapeutic bond. Each item is scored on a Likert scale, with a total possible score ranging from low to high alliance strength. Higher scores indicate a stronger therapeutic alliance, which is associated with better treatment outcomes.
Baseline (pre-intervention) and immediately post-intervention (3 months).
Health-related Quality of Life
Time Frame: Baseline (pre-intervention) and immediately post-intervention (3 months).
Health-Related Quality of Life (HRQoL) will be assessed using the EuroQol-5D (EQ-5D) questionnaire. This tool evaluates five dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, each rated on a multi-level scale. A health index score will be generated based on these dimensions. The visual analog scale (VAS) will not be used in this study.
Baseline (pre-intervention) and immediately post-intervention (3 months).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Cardenal Herrera University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 11, 2025

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 11, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 11, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 11, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 11, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 17, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 30, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 25, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • UNIVERSITY CARDENAL HERRERA-99

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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