Investigating the Bioavailability of Broccoli Extract Supplements
4. august 2026 oppdatert av: Emily Ho, Oregon State University
The goal of this clinical trial is to compare how much glucoraphanin and sulforaphane from 3 different versions of broccoli extract supplements is absorbed into the body and excreted in urine. This study involves generally healthy adults age 18-60 years. The supplements contain glucoraphanin and myrosinase enzyme, both naturally occurring in cruciferous vegetables. Once ingested, glucoraphanin is converted to the bioactive compound sulforaphane, which is thought to have numerous health benefits, including cancer prevention.
Participants will:
- consume 3 different versions of broccoli extract supplements (glucoraphanin will range from 35-70 mg)
- complete 3 separate 24 hour study cycles
- submit blood and urine samples for 24 hours
- follow diet restrictions (no cruciferous vegetables or condiments or phytochemical/herbal supplements for 1 week prior to and during each study cycle)
Studieoversikt
Status
Rekruttering
Forhold
Detaljert beskrivelse
This study aims to compare the bioavailability of 3 different versions of a broccoli extract supplement in generally healthy adults age 18-60 years who do not smoke or are not pregnant/lactating.
The supplements contain glucoraphanin and myrosinase enzyme, both naturally occurring in cruciferous vegetables.
Once ingested, glucoraphanin is converted to the bioactive compound sulforaphane, which is thought to have numerous health benefits, including cancer prevention.
The amount of glucoraphanin that subjects will take will range from 35-70 mg.
Glucoraphanin, sulforaphane, and sulforaphane metabolites will be measured in plasma and urine for 24 hours (plasma: 0, 0.5, 1, 2, 4, 8, and 24 hours after supplement consumption; urine: 0-2, 2-4, 4-8, and 8-24 hour after supplement consumption).
Studietype
Intervensjonell
Registrering (Antatt)
12
Fase
- Ikke aktuelt
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiekontakt
- Navn: Emily Ho, PhD
- Telefonnummer: 541-737-9559
- E-post: emily.ho@oregonstate.edu
Studer Kontakt Backup
- Navn: Sandra Uesugi, RN, BSN, MS
- Telefonnummer: 541-737-3594
- E-post: sandra.uesugi@oregonstate.edu
Studiesteder
-
-
Oregon
-
Corvallis, Oregon, Forente stater, 97331
- Rekruttering
- Oregon State University
-
Ta kontakt med:
- Sandra Uesugi, RN, BSN, MS
- Telefonnummer: 541-737-3594
- E-post: sandra.uesugi@oregonstate.edu
-
Hovedetterforsker:
- Emily Ho, PhD
-
-
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
Tar imot friske frivillige
Ja
Beskrivelse
Inclusion Criteria:
- Healthy adults, 18-60 years of age
- Willing to stop taking herbal and phytochemical (plant-based extract or phytochemical) supplements for 1 week prior to and during each study cycle
- Willing to stop cruciferous vegetable intake 1 week prior to and during each study cycle
- Must be able to give written informed consent
Exclusion Criteria:
- Body Mass Index (BMI) <18.5 or >30.0 kg/m2
- Tobacco use, including e-cigarettes, or smoking of any substance (e.g. cannabis) in the past three months
- Pregnancy, breastfeeding, or planning to become pregnant before completing the study
- Engaging in vigorous exercise more than 7 hours per week
- Have a significant acute or chronic illness such as cardiovascular disease, kidney or liver disease, diabetes, thyroid disorder, or radiation or chemotherapy treatment for cancer within the past five years
- Use of medications to control cholesterol (e.g. statins, cholestyramine) or fat absorption (e.g. orlistat)
- Have had bariatric surgery (e.g. gastric bypass, gastric banding, sleeve gastrectomy, etc.), other gastrointestinal procedure (e.g. cholecystectomy) or disorders (e.g. Crohn's disease, celiac disease, ulcerative colitis)
- Allergic to broccoli, moringa, mustard, or maitake mushrooms
- Weighs less than 110 pounds
- Diagnosis of sickle cell disease
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Grunnvitenskap
- Tildeling: Randomisert
- Intervensjonsmodell: Crossover-oppdrag
- Masking: Dobbelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Aktiv komparator: 35 mg glucoraphanin
Participants will swallow by mouth 1 tablet of Avmacol Extra Strength with coating.
|
Participants will swallow by mouth 1 tablet Avamacol Extra Strength with coating (35 mg glucoraphanin per tablet)
|
|
Aktiv komparator: 60 mg glucoraphanin
Participants will chew and swallow by mouth 2 tablets of Avmacol chewable wafers (30 mg glucoraphanin each)
|
Participants will chew and swallow by mouth 2 wafers Avmacol chewable wafers (30 mg glucoraphanin per wafer)
|
|
Aktiv komparator: 70 mg glucoraphanin
Participants will swallow by mouth 2 tablets of Avmacol Extra Strength with coating (35 mg glucoraphanin each)
|
Participants will swallow by mouth 2 tablets Avamacol Extra Strength with coating (35 mg glucoraphanin per tablet)
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Urine sulforaphane
Tidsramme: 0, 2, 4, 8, and 24 hours
|
Change from baseline levels of sulforaphane in urine
|
0, 2, 4, 8, and 24 hours
|
|
Urine sulforaphane metabolites
Tidsramme: 0, 2, 4, 8, and 24 hours
|
Change from baseline levels of sulforaphane in urine
|
0, 2, 4, 8, and 24 hours
|
|
Plasma glucoraphanin
Tidsramme: 0, 1, 2, 4, 8, and 24 hours
|
Change from baseline levels of plasma glucoraphanin
|
0, 1, 2, 4, 8, and 24 hours
|
|
Plasma sulforaphane
Tidsramme: 0, 1, 2, 4, 8, and 24 hours
|
Change from baseline levels of plasma sulforaphane
|
0, 1, 2, 4, 8, and 24 hours
|
|
Plasma sulforaphane metabolites
Tidsramme: 0, 1, 2, 4, 8, and 24 hours
|
Change from baseline levels of plasma sulforaphane metabolites
|
0, 1, 2, 4, 8, and 24 hours
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Etterforskere
- Hovedetterforsker: Emily Ho, PhD, Oregon State University
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart (Faktiske)
4. august 2026
Primær fullføring (Antatt)
1. september 2027
Studiet fullført (Antatt)
1. september 2028
Datoer for studieregistrering
Først innsendt
27. april 2026
Først innsendt som oppfylte QC-kriteriene
27. april 2026
Først lagt ut (Faktiske)
4. mai 2026
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
7. august 2026
Siste oppdatering sendt inn som oppfylte QC-kriteriene
4. august 2026
Sist bekreftet
1. august 2026
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
- LPI-2026-2211
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
NEI
IPD-planbeskrivelse
We will not share IPD.
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Nei
Studerer et amerikansk FDA-regulert enhetsprodukt
Nei
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