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SucroMet Nutritional Intervention Trial

SucroMet' Nutritional Intervention: Study of the Metabolic Impact of Sucrose (Natural Sugar) and Sucralose (Artificial Sweetener) Intake at Different Doses and Modes of Consumption in Adults With Normal Weight, Overweight, and Obesity

SucroMet is designed to evaluate how adding two commonly used sweeteners-sucrose (table sugar) and sucralose (a low-calorie sweetener)-at low and high doses may influence glucose regulation, including insulin resistance and fasting plasma glucose, in adults aged 18 to 65 years with normal weight, overweight, or obesity.

The low-dose intervention consists of 5% of the Estimated Energy Requirement (EER) from sucrose or 5 sucralose tablets per day (approximately 33.35 mg/day of sucralose). The high-dose intervention consists of 10% of EER from sucrose or 10 sucralose tablets per day (approximately 66.7 mg/day of sucralose). These doses maintain the planned 1:2 exposure ratio between the low- and high-dose intervention groups.

Before the intervention begins, participants' habitual dietary intake is assessed and, when necessary, minor dietary adjustments are made to support a stable overall eating pattern while maintaining energy intake. Participants then complete a four-week run-in period during which these recommendations are followed, and dietary records are used to verify dietary stability before the intervention starts.

Participants will consume the assigned sweetener incorporated into foods or beverages that they already consume as part of their habitual diet, without substantial changes to their usual eating patterns. The intervention includes two consecutive 12-week phases, one involving solid food intake and the other involving liquid intake, separated by a two-week washout period. This design allows evaluation of the effects of sweetener type, dose, and mode of consumption.

The primary outcomes are changes in glucose regulation, including fasting plasma glucose and insulin resistance assessed by HOMA-IR. Secondary outcomes include changes in body composition, anthropometric measurements, blood pressure, routine biochemical parameters, gut microbiota composition, DNA methylation patterns in peripheral blood cells, and biomarkers related to inflammation, oxidative stress, and metabolomic profiles measured in blood and urine.

Participants will attend scheduled study visits for anthropometric assessments, dietary evaluations, and biological sample collection. Blood, urine, and stool samples will be obtained at baseline and after each intervention phase.

The study aims to address the following questions:

  1. Do metabolic responses to sucrose and sucralose, including changes in insulin resistance (HOMA-IR) and fasting plasma glucose, differ according to participants' body mass index (BMI)?
  2. Do low and high doses of sucrose and sucralose differentially affect glucose regulation, body composition, and metabolic health?
  3. Does the mode of intake (solid versus liquid) influence changes in gut microbiota composition?
  4. Are changes in DNA methylation patterns in peripheral blood cells associated with the consumption of sucrose and sucralose at different doses and in different forms?
  5. Do different doses of sucrose and sucralose influence biomarkers related to inflammation, oxidative stress, and metabolomic profiles?

연구 개요

상세 설명

SucroMet is a randomized controlled nutritional intervention designed to investigate the metabolic effects of sucrose and sucralose consumption under conditions that closely reflect habitual dietary practices. The study aims to determine whether sweetener type, dose, and mode of consumption influence glucose regulation and related biological pathways in adults with normal weight, overweight, or obesity. The study evaluates the independent and combined effects of sweetener type, dose, and mode of consumption. By maintaining overall dietary habits and energy intake as stable as possible throughout the intervention, the design aims to isolate the specific contribution of sweetener exposure to observed metabolic changes.

A distinctive feature of the study is the comparison of sweeteners administered in both solid and liquid forms, allowing assessment of whether the food matrix modifies physiological responses. The study also examines whether responses differ according to adiposity status, enabling exploration of potential interactions between sweetener exposure and body mass index.

Beyond glucose regulation, the study investigates several biological pathways that may contribute to individual variability in response to sweetener intake, including gut microbiota composition, epigenetic regulation, inflammation, oxidative stress, and systemic metabolic profiles. The integration of clinical, biochemical, molecular, and metabolomic data is intended to provide a comprehensive characterization of the biological effects associated with long-term sweetener consumption.

The results are expected to improve understanding of the metabolic consequences of sucrose and sucralose intake and to contribute evidence relevant to future nutritional recommendations and public health strategies.

연구 유형

중재적

등록 (추정된)

120

단계

  • 해당 없음

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

  • 이름: Libia Alejandra Garcìa Flores, PhD.
  • 전화번호: (+34) 951 440 260
  • 이메일: libia.garcia@ibima.eu

연구 연락처 백업

  • 이름: José Manuel García Almeida, MD, PhD.
  • 전화번호: (+34) 951032244
  • 이메일: jgarciaalmeida@uma.es

연구 장소

    • Malaga
      • Málaga, Malaga, 스페인, 29103
        • 모병
        • Hospital Universitario Virgen de la Victoria
        • 연락하다:
        • 연락하다:

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

  • 성인
  • 고령자

건강한 자원 봉사자를 받아들입니다

설명

Inclusion Criteria:

  • Adults aged 18 to 65 years at the time of enrollment.
  • Body Mass Index (BMI) between 18.5 and 39.9 kg/m².
  • Men and women who report a preference for sweet taste and habitual consumption of sugar and/or sweeteners.
  • Individuals in good general health, as determined by:

    1. Medical history and clinical evaluation;
    2. Absence of uncontrolled chronic diseases, such as diabetes, metabolic syndrome, severe hypertension, or advanced liver or renal disease; and
    3. Baseline biochemical parameters within normal reference ranges, including fasting plasma glucose <100 mg/dL, HbA1c <5.7%, normal liver and renal function (ALT/AST and creatinine within reference ranges), and blood pressure <140/90 mmHg without pharmacological treatment.
  • Less than 4 hours per week of moderate-to-vigorous physical activity.
  • Not following special or restrictive diets (e.g., ketogenic, strict vegetarian, or vegan diets).
  • Not taking medications known to affect metabolism, including, for example, antidiabetic drugs, systemic corticosteroids, weight-loss medications, or high-dose antioxidant supplements, except for stable use of hormonal contraceptives.
  • Willingness to maintain habitual diet and physical activity throughout the study, with the only modification being the assigned sweetener intervention.
  • Ability and willingness to comply with all study procedures and scheduled visits.
  • Provision of written informed consent before participation.

Exclusion Criteria:

  • Gastrointestinal disorders influencing digestion or nutrient absorption (e.g., inflammatory bowel disease, celiac disease, malabsorption syndromes).
  • History of cancer not in remission.
  • Uncontrolled thyroid disorders.
  • History of bariatric surgery or extreme weight loss within the past 12 months.
  • Pregnancy, breastfeeding, or planning pregnancy during the study period.
  • Acute illness, major infection, hospitalization, or major surgery within the previous 6 months.
  • Any condition that, in the investigators' judgment, could compromise participant safety, protocol adherence, or interpretation of the study results.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 기초 과학
  • 할당: 무작위
  • 중재 모델: 크로스오버 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
실험적: Sucrose - Low Dose
Participants assigned to this arm will consume sucrose at a low dose equivalent to five percent of their individual estimated energy requirement. The sucrose will be incorporated into foods or beverages that are part of the habitual diet, while total daily calorie intake is maintained. Participants will complete two intervention phases, including solid and liquid intake forms, according to the crossover design.
Sucralose tablets administered at a total dose of approximately 33.35 mg/day (5 tablets/day). Tablets are consumed daily and distributed across meals. Participants receive the assigned dose throughout both intervention periods and consume the sweetener in both solid and liquid forms according to the study crossover schedule.
실험적: Sucrose - High Dose
Participants assigned to this arm will consume sucrose at a high dose equivalent to ten percent of their individual estimated energy requirement. The sucrose will be incorporated into foods or beverages that are part of the habitual diet, while total daily calorie intake is maintained. Participants will complete two intervention phases, including solid and liquid intake forms, according to the crossover design.
Sucrose administered at a dose equivalent to 10% of the participant's estimated daily energy requirement. The required amount is individually calculated and provided in pre-weighed sachets for daily consumption. Participants consume the assigned dose in foods or beverages during both intervention periods according to the crossover schedule.
실험적: Sucralose - Low Dose
Participants assigned to this arm will consume a low dose of sucralose (approximately 33.35 mg/day), administered as five sucralose tablets per day and distributed across regular meals. The sucralose will be incorporated into foods or beverages consumed as part of the habitual diet while maintaining stable total daily energy intake. Participants will complete both solid and liquid intake intervention phases according to the crossover design.
Sucrose administered at a dose equivalent to 5% of the participant's estimated daily energy requirement. The required amount is individually calculated and provided in pre-weighed sachets for daily consumption. Participants consume the assigned dose in foods or beverages during both intervention periods according to the crossover schedule.
실험적: Sucralose - High Dose
Participants assigned to this arm will consume a high dose of sucralose (approximately 66.7 mg/day), administered as ten sucralose tablets per day and distributed across regular meals. The sucralose will be incorporated into foods or beverages consumed as part of the habitual diet while maintaining stable total daily energy intake. Participants will complete both solid and liquid intake intervention phases according to the crossover design.
Sucralose tablets administered at a total dose of approximately 66.7 mg/day (10 tablets/day). Tablets are consumed daily and distributed across meals. Participants receive the assigned dose throughout both intervention periods and consume the sweetener in both solid and liquid forms according to the study crossover schedule.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Change in HOMA-IR Index
기간: Baseline (before intervention) and End of each 12-week intervention phase
Insulin resistance will be assessed using the Homeostasis Model Assessment of Insulin Resistance (HOMA-IR). Results will be reported as HOMA-IR values.
Baseline (before intervention) and End of each 12-week intervention phase

2차 결과 측정

결과 측정
측정값 설명
기간
Glycemic biomarker
기간: Baseline and End of each 12-week intervention phase
Change in Hemoglobin A1c (%): Hemoglobin A1c measured as an indicator of long-term glycemic control.
Baseline and End of each 12-week intervention phase
Change in Fat Mass
기간: Baseline and End of each 12-week intervention phase
Fat mass (kg) is assessed using bioelectrical impedance analysis (BIA).
Baseline and End of each 12-week intervention phase
Change in Systolic Blood Pressure
기간: Baseline and End of each 12-week intervention phase
Systolic blood pressure is measured under standardized clinical conditions using validated devices.
Baseline and End of each 12-week intervention phase
Change in Triglycerides
기간: Baseline and End of each 12-week intervention phase
Triglyceride levels (mg/dL) are measured using standard clinical laboratory methods.
Baseline and End of each 12-week intervention phase
Change in Relative Abundance of Gut Microbiota
기간: Baseline and End of each 12-week intervention phase
Gut microbiota composition is assessed in stool samples using 16S rRNA gene sequencing by quantifying the relative abundance of bacterial taxa at different taxonomic levels.
Baseline and End of each 12-week intervention phase
Change in DNA Methylation in Peripheral Blood Mononuclear Cells
기간: Baseline and End of each 12-week intervention phase
DNA methylation levels are assessed in peripheral blood mononuclear cells (PBMCs) by quantifying methylation at specific CpG sites using bisulfite-based epigenetic analysis techniques.
Baseline and End of each 12-week intervention phase
Change in Urinary Oxylipin Levels
기간: Baseline and End of each 12-week intervention phase
Urinary oxylipin levels, including isoprostanes, prostaglandins, and thromboxanes, are quantified in first-morning urine samples using targeted mass spectrometry and normalized to urinary creatinine.
Baseline and End of each 12-week intervention phase

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

협력자

수사관

  • 수석 연구원: Libia Alejandra García Flores, PhD, Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud (FIMABIS)
  • 수석 연구원: José Manuel García Almeida, MD, PhD., Andaluz Health Service

간행물 및 유용한 링크

연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (추정된)

2026년 7월 1일

기본 완료 (추정된)

2027년 7월 1일

연구 완료 (추정된)

2027년 9월 1일

연구 등록 날짜

최초 제출

2026년 2월 20일

QC 기준을 충족하는 최초 제출

2026년 6월 15일

처음 게시됨 (실제)

2026년 6월 18일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 6월 18일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 6월 15일

마지막으로 확인됨

2026년 6월 1일

추가 정보

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개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

미정

IPD 계획 설명

Individual participant data (IPD) sharing has not yet been determined. Any future decision to share IPD will depend on additional ethical approvals, data protection regulations (including GDPR), and the terms of the informed consent. If IPD are shared, they will be fully anonymized and made available only for scientifically sound research purposes, subject to appropriate data access agreements.

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

포도당 대사에 대한 임상 시험

Sucralose - Low Dose에 대한 임상 시험

구독하다