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A Trial to Examine the Effects of a Weight Loss Program Emphasizing Protein, Dietary Fiber, and Exercise (30-30-30 Plan)

26 de agosto de 2026 actualizado por: Midwest Center for Metabolic and Cardiovascular Research

A Randomized, Controlled Trial to Examine the Effects of an Online Weight Loss Program Emphasizing Protein, Dietary Fiber, and Exercise (30-30-30 Plan) on Body Weight, Body Composition, and Other Cardiometabolic Risk Factors

The purpose of this study is to learn whether following an online weight loss program with specific dietary and exercise goals (the 30-30-30 plan) can help improve weight loss and other markers of health when compared to an online weight loss program on its own.

Descripción general del estudio

Estado

Aún no reclutando

Condiciones

Tipo de estudio

Intervencionista

Inscripción (Estimado)

110

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Ubicaciones de estudio

    • Illinois
      • Addison, Illinois, Estados Unidos, 60101
        • Biofortis Clinical Research
        • Investigador principal:
          • Aditi Shah, MD
        • Contacto:
      • Chicago, Illinois, Estados Unidos, 60616
        • Illinois Institute of Technology
        • Investigador principal:
          • Indika Edirisinghe, PhD
        • Contacto:
    • Indiana
      • Bloomington, Indiana, Estados Unidos, 47405
        • Indiana University
        • Investigador principal:
          • Nana Gletsu-Miller, PhD
        • Contacto:
          • Karen Sprague
          • Número de teléfono: 812-855-7643
          • Correo electrónico: kaspragu@iu.edu

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

Sí

Descripción

Inclusion Criteria:

  • Individual is a male or female and 18 to 69 years of age, inclusive.
  • Individual has a self-reported desire to lose weight.
  • Individual has a body mass index (BMI) ≥27.0 and ≤45.0 kg/m2.
  • Individual has calculated energy needs of ≥1800 kcal/d per the Mifflin-St Jeor Equation, with an adjustment for energy expended in physical activity.
  • Individual must be fluent in speaking, reading, and writing in English.
  • Individual owns a Bluetooth-compatible smartphone capable of downloading a fitness tracking app, with a camera, and has reliable Wi-Fi connectivity at home.
  • Individual is judged by the Investigator to be in generally good health on the basis of medical history and screening assessments.
  • Individual is willing and able to undergo the scheduled study procedures, including participating in an interactive, online weight loss program for 6 months, attending virtual meetings, and striving to fulfill dietary and exercise goals.
  • Individual understands the study procedures and signs forms documenting informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator.

Exclusion Criteria:

  • Individual has a laboratory test result of clinical significance based on the judgment of the Principal Investigator or qualified designee.

Individual is unwilling or unable to make dietary changes or increase physical activity.

  • Individual is unable to walk ¼ mile unaided without stopping.
  • Individual has a health condition (e.g., chronic pain, orthopedic limitations, heart problems) that would make weight loss or unsupervised exercise unsafe or infeasible. If an individual responds "yes" to any of the questions on the Physical Activity Readiness Questionnaire (PAR-Q) during visit 1, it is up to the Investigator's discretion to determine if unsupervised exercise is safe.
  • Individual habitually consumes >9 g fiber per 1000 kcal per day based on their responses on the fiber intake questionnaire.
  • Individual habitually engages in ≥210 minutes per week of moderate-intensity or higher physical activity based on their responses on the Stanford 7-Day Physical Activity Recall (Appendix 3).
  • Individual regularly consumes (≥3 times per week) protein supplements, including collagen, within 30 days of visit 1.
  • Individual has a fasting blood glucose ≥126 mg/dL at screening or known type 1 or type 2 diabetes mellitus or use of any hypoglycemic medication (e.g., insulin, sodium glucose cotransporter-2 inhibitors, alpha glucosidase inhibitors, biguanides, thiazolidinediones, dipeptidyl peptidase-4 inhibitors, meglitinides, sulfonylureas, glucagon-like peptide-1 (GLP-1) receptor agonists, and GLP-1/glucose-dependent insulinotropic polypeptide inhibitors), except for metformin, within 30 days of visit 1.
  • Individual has self-reported or clinically diagnosed bipolar disorder, psychosis, or severe depression.
  • Individual has been hospitalized for a psychiatric disorder during the past 12 months.
  • Individual has lost ≥5% of their body weight in the previous 6 months.
  • Individual has participated in a structured weight loss program (e.g., commercial program) within 30 days prior to visit 1.
  • Individual has a cardiac defibrillator or pacemaker.
  • Individual has a clinically significant medical condition that, in the opinion of the Investigator, could interfere with the interpretation of the study results. Health conditions may include history or presence of clinically important gastrointestinal (e.g., inflammatory bowel disease, Crohn's disease, colitis, irritable bowel syndrome, celiac disease), cardiac (e.g., angina, bypass surgery, or myocardial infarction within previous 6 months), renal, hepatic, endocrine (e.g., Cushing's disease), pulmonary, biliary, pancreatic, or neurological disorders that may affect the participant's ability to adhere to the study protocol and/or affect study outcomes, in the judgment of the Investigator.
  • Daily use of tobacco/nicotine products (e.g., cigarette smoking, vaping, chewing tobacco) within 12 months of visit 1.
  • Use of hemp/marijuana products within 12 months of visit 1. Occasional use (e.g., once or twice a month) within 12 months of visit 1 is allowed but requires at least a 14-day washout prior to visit 2 (week 0) and the participant must be willing to refrain from use during the study.
  • Individual has uncontrolled hypertension (systolic blood pressure ≥160 millimeters of mercury (mm Hg) and/or diastolic blood pressure ≥100 mm Hg) at screening.
  • Individual has untreated thyroid disease or unstable use (initiation or change in dose) of thyroid hormone replacement medications within 6 months of visit 1.
  • Use of any prescription medication with known effects on appetite or weight (e.g., oral steroids, weight loss medications, etc.) within 30 days of visit 1. A stable dose of selective serotonin reuptake inhibitors ≥6 months is allowed.
  • Unstable use of any supplement known to affect energy metabolism within 30 days of visit 2.
  • Individual has a history of cancer in the prior 5 years, except non-melanoma skin cancer or carcinoma in situ of the cervix.
  • Individual has extreme dietary habits (e.g., ketogenic, very high protein, very high fiber, vegan, vegetarian).
  • Individual has a history of metabolic/bariatric surgery or plans to have any type of surgery during the study.
  • Individual has a history of an eating disorder (e.g., anorexia nervosa, bulimia nervosa, or binge eating) either diagnosed by a health professional or self-reported.
  • Individual has a history of any major trauma or major surgical event within 2 months of visit 1.
  • Individual has signs or symptoms of an active infection of clinical significance or has taken antibiotics within 5 days prior to any visit (washout is permitted for re-scheduling of the clinic visit).
  • Individual has an allergy, sensitivity, or intolerance to any components of the study foods.
  • Individual is a female who is pregnant, planning to become pregnant during the study period, lactating, or is of childbearing potential and is unwilling to commit to the use of a medically approved form of contraception throughout the study period.
  • Individual has been exposed to any non-registered drug product within 30 days prior to visit 1.
  • Individual is a participant in another research study.
  • Individual has a current or recent history (within 12 months prior to screening) or strong potential for illicit drug or excessive alcohol intake defined as >14 drinks per week (1 drink = 12 ounces (oz.) beer, 5 oz. wine, or 1.5 oz. hard liquor).
  • Individual has a condition the Investigator believes would interfere with his or her ability to provide informed consent, comply with the study protocol, which might confound the interpretation of the study results, or puts the person at undue risk.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Prevención
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: 30-30-30 PFE intervention
Interactive, online weight loss program adapted from the Rx Weight Loss (Rx WL) program with additional goals to consume ≥30 g protein/meal (P) + ≥30 g fiber/day (F) + ≥30 minutes of daily exercise (E) (30-30-30 PFE intervention).
Interactive, online weight loss program adapted from the Rx Weight Loss (Rx WL) program with additional goals to consume ≥30 g protein/meal (P) + ≥30 g fiber/day (F) + ≥30 minutes of daily exercise (E).
Comparador activo: Standard
Standard interactive, online weight loss program adapted from the Rx Weight Loss (WL) program.
Standard interactive, online weight loss program adapted from the Rx WL program.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Body Weight
Periodo de tiempo: From week 0 to week 24
Percentage change in body weight
From week 0 to week 24

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Body Weight
Periodo de tiempo: From week 0 to week 8
Percentage change in body weight
From week 0 to week 8
Body Weight
Periodo de tiempo: From week 0 to week 16
Percentage change in body weight
From week 0 to week 16
Waist Circumference
Periodo de tiempo: From week 0 to week 8
Percentage change in waist circumference
From week 0 to week 8
Waist Circumference
Periodo de tiempo: From week 0 to week 16
Percentage change in waist circumference
From week 0 to week 16
Waist Circumference
Periodo de tiempo: From week 0 to week 24
Percentage change in waist circumference
From week 0 to week 24
Body composition
Periodo de tiempo: From week 0 to week 24
Percentage change in body composition (fat mass, fat-free mass, percent body fat)
From week 0 to week 24
Fasting levels of lipoprotein lipids
Periodo de tiempo: From week 0 to week 8
Percentage change in fasting levels of lipoprotein lipids (total cholesterol, low-density lipoprotein cholesterol [LDL-C], high-density lipoprotein cholesterol [HDL-C], non-HDL-C, triglycerides)
From week 0 to week 8
Fasting levels of lipoprotein lipids
Periodo de tiempo: From week 0 to week 16
Percentage change in fasting levels of lipoprotein lipids (total cholesterol, LDL-C, HDL-C, non-HDL-C, triglycerides)
From week 0 to week 16
Fasting levels of lipoprotein lipids
Periodo de tiempo: From week 0 to week 24
Percentage change in fasting levels of lipoprotein lipids (total cholesterol, LDL-C, HDL-C, non-HDL-C, triglycerides)
From week 0 to week 24
Fasting markers of glycemia
Periodo de tiempo: From week 0 to week 8
Percentage change in fasting markers of glycemia (blood glucose, insulin, homeostasis model assessment of insulin resistance [HOMA-IR], homeostasis model assessment of beta-cell function [HOMA-B])
From week 0 to week 8
Fasting markers of glycemia
Periodo de tiempo: From week 0 to week 16
Percentage change in fasting markers of glycemia (blood glucose, insulin, HOMA-IR, HOMA-B)
From week 0 to week 16
Fasting markers of glycemia
Periodo de tiempo: From week 0 to week 24
Percentage change in fasting markers of glycemia (blood glucose, insulin, HOMA-IR, HOMA-B)
From week 0 to week 24
Composite measure of biomarkers of inflammation
Periodo de tiempo: From week 0 to week 8
Percentage change in composite measure of biomarkers of inflammation (high-sensitivity C-reactive protein [hs-CRP], interleukin [IL]-6, IL-10, fibrinogen, and tumor necrosis factor-alpha [TNF-alpha])
From week 0 to week 8
Composite measure of biomarkers of inflammation
Periodo de tiempo: From week 0 to week 16
Percentage change in composite measure of biomarkers of inflammation (hs-CRP, IL-6, IL-10, fibrinogen, and TNF-alpha)
From week 0 to week 16
Composite measure of biomarkers of inflammation
Periodo de tiempo: From week 0 to week 24
Percentage change in composite measure of biomarkers of inflammation (hs-CRP, IL-6, IL-10, fibrinogen, and TNF-alpha)
From week 0 to week 24
Seated, resting systolic and diastolic blood pressures
Periodo de tiempo: From week 0 to week 8
Percentage change in seated, resting systolic and diastolic blood pressures.
From week 0 to week 8
Seated, resting systolic and diastolic blood pressures
Periodo de tiempo: From week 0 to week 16
Percentage change in seated, resting systolic and diastolic blood pressures.
From week 0 to week 16
Seated, resting systolic and diastolic blood pressures
Periodo de tiempo: From week 0 to week 24
Percentage change in seated, resting systolic and diastolic blood pressures.
From week 0 to week 24

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Investigadores

  • Director de estudio: Liana L Guarneiri, PhD, RDN, Midwest Biomedical Research

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Estimado)

1 de agosto de 2026

Finalización primaria (Estimado)

1 de mayo de 2027

Finalización del estudio (Estimado)

1 de mayo de 2027

Fechas de registro del estudio

Enviado por primera vez

24 de agosto de 2026

Primero enviado que cumplió con los criterios de control de calidad

24 de agosto de 2026

Publicado por primera vez (Actual)

27 de agosto de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

31 de agosto de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

26 de agosto de 2026

Última verificación

1 de agosto de 2026

Más información

Términos relacionados con este estudio

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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