Lean Beef as Part of a Healthy Meal Plan in Adolescents With Polycystic Ovary Syndrome (PCOS)/Polyendocrine Metabolic Ovarian Syndrome (PMOS) (Beef+)
Effect of Increasing Lean Beef Intake as Part of a Healthy Meal Plan on Glycemic Control in Adolescents With Polycystic Ovary Syndrome (PCOS)/Polyendocrine Metabolic Ovarian Syndrome (PMOS)
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Heidi K Vanden Brink, PhD, MSc, RDMS
- Telefonnummer: 979-321-7073
- E-mail: heidi.vandenbrink@ag.tamu.edu
Studiesteder
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Texas
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College Station, Texas, Forenede Stater, 77843
- Rekruttering
- Texas A&M AgriLife
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Kontakt:
- Heidi Vanden Brink
- Telefonnummer: 979--321-7073
- E-mail: heidi.vandenbrink@ag.tamu.edu
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Underforsker:
- Michele Garant, DO
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Underforsker:
- Seung-Yeon "Shawn" Ha, PhD
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Underforsker:
- Lilian Ademu, PhD
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Female Adolescent
- 11-17 years old
- Suspected or confirmed diagnosis of PCOS
- ≥1-year post-menarche
- BMI ≥85th percentile for age/height
- Able to read and speak English
Exclusion Criteria:
- Medications affecting glucoregulation, metabolic health, and/or appetite (e.g., metformin, GLP-1)
- Unable or unwilling to eat beef
- Pregnant or planning pregnancy during study
- HbA1c ≥6.5%
- Unwilling or unable to complete study procedures
- Conditions affecting ability to complete study procedures or the intervention such as gastrointestinal diseases or syndromes, bleeding disorders, ongoing or unresolved eating disorder)
- Conditions affecting reproductive function other than PCOS
- Conditions that may interfere with continuous glucose monitor (CGM) application or use, including dermatological conditions such as eczema or allergies/reactions to medical adhesives
Conditional Exclusion Criteria:
- Current use of hormonal contraceptives if in the suspected PCOS group (allowable if current for at least the previous 3 months with physician-confirmed PCOS)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Støttende pleje
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Ingen indgriben: Control/Usual Lifestyle with optional Delayed Intervention
Participants randomized to usual lifestyle will continue with their usual lifestyle/ diet.
Participants will undergo all scheduled study procedures.
Upon completion of the 12-week of usual lifestyle, participants randomized to the delayed onset control group will be offered one month of the dietary intervention.
The delayed intervention is optional.
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Eksperimentel: Beef+
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Adolescents will be instructed to consume a minimum of 1 (3oz) serving per day of cooked unprocessed, lean (<10% fat) beef (21 oz/week) for 12 weeks.
To facilitate adoption, the intervention will be offered at the household level, but it is not a requirement.
The intervention is a multi-modal behavior change intervention with three overarching components: modifying beef intake, consuming beef in healthy meals, and the research team purchasing the beef needed for the intervention.
To facilitate adoption of lean beef as part of a healthy diet, a study RDN will meet with the participant and at least one representative parent/guardian at bi-weekly check-ins to provide tailored dietary support and develop an implementation plan.
A financial supplement of $100/month will be provided offset grocery costs.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Change in HbA1c
Tidsramme: Baseline, Week 6 and Week 12 of Intervention or Usual Lifestyle
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HbA1c measured as point of care using A1CNow+ point-of-care analyzer, HbA1c will also serve as a safety endpoint.
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Baseline, Week 6 and Week 12 of Intervention or Usual Lifestyle
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Change in 2-hour Fasting Glucose
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Derived from a 75g oral glucose tolerance test (OGTT) as a measure of glycemic variability
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Dropout rate
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Drop-out and the reason for drop-out will be recorded, and in both the intervention and usual lifestyle groups will be reported.
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Change in Matsuda Index
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Derived from a 75g oral glucose tolerance test (OGTT), measure of insulin sensitivity
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Change in Insulinogenic Index
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Derived from the 75g oral glucose tolerance test (OGTT), measure of insulin sensitivity
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Change in Disposition Index
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Derived from a 75g oral glucose tolerance test (OGTT), measure of insulin sensitivity
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Change in 2nd Phase Insulin Release
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Derived from a 75g oral glucose tolerance test (OGTT), as a measure of insulin sensitivity
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Change in Time in Range
Tidsramme: Baseline, Week 6 and Week 12 of Intervention or Usual Lifestyle
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Derived from blinded Continuous Glucose Monitor (CGM) wear, a measure of glycemic variability
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Baseline, Week 6 and Week 12 of Intervention or Usual Lifestyle
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Change in Continuous Overall Net Glycemic Action (CONGA)
Tidsramme: Baseline, Week 6 and Week 12 of Intervention or Usual Lifestyle
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Derived from blinded Continuous Glucose Monitor (CGM) wear, as a metric of glycemic variability
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Baseline, Week 6 and Week 12 of Intervention or Usual Lifestyle
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Change in Glycemic Risk Assessment in Diabetes Education (GRADE)
Tidsramme: Baseline, Week 6 and Week 12 of Intervention or Usual Lifestyle
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Derived from blinded Continuous Glucose Monitor (CGM) wear, measure of glycemic variability
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Baseline, Week 6 and Week 12 of Intervention or Usual Lifestyle
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Change in Diet Quality - Dietary Recalls
Tidsramme: Baseline and Week 14
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This will be assessed from 24-hour diet recalls and evaluated via Healthy Eating Index (HEI).
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Baseline and Week 14
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Change in Diet Quality - Skin Carotenoids
Tidsramme: Baseline and Week 14
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Skin carotenoids will be measured through the Veggie Meter ®, which uses reflection spectroscopy to estimate skin carotenoid levels.
Three scans will be taken on your non-dominant ring finger.
After each scan, a dial gauge and a score will appear on the screen.
A final score, calculated as the average of the three scans, will range from 0 to 800.
Higher scores indicate greater fruit and vegetable intake.
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Baseline and Week 14
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Change in Perceived Hunger
Tidsramme: Baseline and Week 14
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This will be measured through an Appetite/Satiety Questionnaire adapted from commonly used appetite assessment methods and previously applied in dietary intervention research.
Participants will report their general appetite and satiety experiences using six items assessing hunger frequency, strength of hunger before meals, fullness after eating, desire to eat when food is available, thoughts about food, and satisfaction after eating.
Responses are recorded using a 100-mm visual analogue scale implemented as a 0-100 slider (0 = lowest intensity or frequency; 100 = highest intensity or frequency).
Participants will be instructed to move the slider to reflect how strongly each statement describes their typical experience.
Data collected will be used to evaluate changes in perceived hunger and fullness throughout the intervention.
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Baseline and Week 14
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Change in incident Pre and Type 2 Diabetes
Tidsramme: Baseline, Week 6, and Week 12 of Intervention or Usual Lifestyle
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Type 2 Diabetes is defined as HbA1c >6.5%.
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Baseline, Week 6, and Week 12 of Intervention or Usual Lifestyle
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Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Compliance- Lean beef intake by self-report
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Intake of lean beef, assessed via 24-hour diet recalls
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Compliance - Daily Survey
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Intake of lean beef, assessed through daily logs of beef intake by providing portion sized objects that align with serving sizes and ask participants to take photos of their meals with the portion estimator, to ensure that both the meal planning is followed and portion sizes are met.
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Compliance - Blood Biomarkers
Tidsramme: Baseline and Week 12 of Intervention or Usual Lifestyle
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Serum hemoglobin will also be assessed as a metric of compliance.
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Baseline and Week 12 of Intervention or Usual Lifestyle
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Participants' Quality of Life
Tidsramme: Baseline and and Week 14
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This will be measured through the Pediatric Quality of Life (PedsQL) questionnaire.
It includes 23 questions and is scored by reverse-scoring items and linearly transforming them to a 0-100 scale.
Higher scores mean better health-related quality of life.
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Baseline and and Week 14
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Household Quality of Life
Tidsramme: Baseline and Week 14
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This will be measured through the Adapted version of the Family Impact Module of the Pediatric Quality of Life (PedsQL).
This questionnaire includes 36 questions and includes a 5-point Likert scale (0 to 4), reverse-scored and linearly transformed to a 0-100 scale.
Higher scores show better parent health-related quality of life and family functioning with less negative impact.
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Baseline and Week 14
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Exploratory Analysis - Lean Beef
Tidsramme: Baseline and Week 14
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An exploratory analysis will reveal whether lean beef was directly associated with any change in glycemic outcome over time
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Baseline and Week 14
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Economic Evaluation of the Intervention (Ancillary Study, Optional)
Tidsramme: Baseline and Week 14
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An exploratory economic evaluation will estimate household food-related costs associated with participation in the intervention as an ancillary study.
Parents or legal guardians will be invited to record and provide receipts for costs related to groceries or food purchased for at-home meal preparation, as well as for meals purchased outside the home, including at restaurants and fast-food venues
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Baseline and Week 14
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Heidi K Vanden Brink, PhD, MSc, RDMS, Texas A&M University
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Urogenitale sygdomme
- Genitale sygdomme
- Sygdomme i det endokrine system
- Patologiske processer
- Ernæringsforstyrrelser
- Neoplasmer
- Mandlige urogenitale sygdomme
- Urogenitale sygdomme hos kvinder
- Kvinders urogenitale sygdomme og graviditetskomplikationer
- Overernæring
- Kropsvægt
- Kønssygdomme, kvindelige
- Ovariesygdomme
- Adnexale sygdomme
- Gonadale lidelser
- Hudsygdomme
- Medfødte abnormiteter
- Hårsygdomme
- Ovariecyster
- Cyster
- Forstyrrelser i seksuel udvikling
- Urogenitale abnormiteter
- Virilisme
- 46, XX Forstyrrelser i kønsudvikling
- Adrenogenital syndrom
- Medfødte, arvelige og neonatale sygdomme og abnormiteter
- Patologiske tilstande, tegn og symptomer
- Ernæringsmæssige og metaboliske sygdomme
- Hud- og bindevævssygdomme
- Tegn og symptomer
- Overvægtig
- Polycystisk ovariesyndrom
- Hirsutisme
- Menstruationsforstyrrelser
- Hyperandrogenisme
- Mad
- Diæt, mad og ernæring
- Fysiologiske fænomener
- Mad og drikkevarer
- Kød
- Rødt Kød
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- IRB#STUDY2026-0483
- #2681 (Anden identifikator: National Cattlemen's Beef Association, a contractor to the Beef Checkoff)
- Lab Research Funds (Anden identifikator: Texas A&M AgriLife)
Plan for individuelle deltagerdata (IPD)
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IPD-planbeskrivelse
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