Evaluating the Effects of Propionate and Butyrate Supplementation on the Intestinal Health of Healthy Volunteers
A Pilot Feasibility Study of Oral Administration of Microencapsulated Propionate and Butyrate in Healthy Volunteers
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
PRIMARY OBJECTIVE:
I. To determine the feasibility of repeated microencapsulated propionate and butyrate (mPB) administration as assessed by compliance; ability to consume at least 75% of the scheduled doses on a weekly basis.
SECONDARY OBJECTIVES:
I. To determine the safety of repeated mPB administration. II. To estimate blood and stool levels of propionate and butyrate metabolite content with repeated administration of mPB.
III. To identify a feasible target dose (TD) of repeated mPB administration in transplant patients as determined by dosing adherence and pharmacokinetic measures in blood and stool of healthy volunteers.
OUTLINE:
Participants receive microencapsulated sodium propionate orally (PO) four times daily (QID) for 1 week. Participants then receive microencapsulated sodium propionate PO QID and microencapsulated sodium butyrate PO QID for 1 week. Participants also undergo collection of blood samples throughout the study.
After completion of study intervention, participants are followed up for 1 week.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Fase 1
Kontakter og lokationer
Studiesteder
-
-
California
-
Duarte, California, Forenede Stater, 91010
- City of Hope Medical Center
-
Kontakt:
- Karamjeet S. Sandhu
- Telefonnummer: 626-218-2405
- E-mail: ksandhu@coh.org
-
Ledende efterforsker:
- Karamjeet S. Sandhu
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Documented informed consent of the participant and/or legally authorized representative
- Age: ≥ 18 years and ≤ 75 years old
- Ability to read and understand and willingness to sign a written informed consent
- Ability to understand English to fill out required forms (e.g. Pill Diary and Symptom Diary)
Participants are not taking butyrate or propionate as supplement(s)
- Those who are already taking butyrate or propionate as supplement(s) are allowed only if they are willing to stop the supplement(s) ≥ 7 days prior to baseline samples and for the duration of this study
Exclusion Criteria:
- History of migraines and chronic gastrointestinal diseases, such as inflammatory bowel disease or Crohn's disease
- History of allergic reactions to compounds of similar chemical or biologic composition to study agent
- Females only: Pregnant, breastfeeding, or planning to get pregnant
- Antibiotic exposure within 2 weeks prior to day 1 of study
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Støttende pleje
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: Supportive care (mPB)
Participants receive microencapsulated sodium propionate PO QID for 1 week.
Participants then receive microencapsulated sodium propionate PO QID and microencapsulated sodium butyrate PO QID for 1 week.
Participants also undergo collection of blood samples throughout the study.
|
Gennemgå indsamling af blodprøver
Andre navne:
Given PO
Andre navne:
Given PO
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Subjects' ability to take at least 75% of the specified dose on a weekly basis (feasibility)
Tidsramme: During 2 week intervention period
|
Evaluated by assessment of subject's ability to take at least 75% of the specified dose on a weekly basis.
Vomiting within an hour after taking a dose will be considered a missed dose.
Participants who do not meet this criterion will be considered as feasibility failure.
|
During 2 week intervention period
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Incidence of adverse events
Tidsramme: From the first dose of microencapsulated sodium propionate to the first observation of toxicities or by day +7 after the last dose of microencapsulated propionate and butyrate
|
Adverse events will be categorized by type, frequency, severity, attribution, onset, and duration.
Safety summaries will inform dosing decisions.
|
From the first dose of microencapsulated sodium propionate to the first observation of toxicities or by day +7 after the last dose of microencapsulated propionate and butyrate
|
|
blood and stool - Propionate content
Tidsramme: At baseline and up to 3 weeks
|
Longitudinal blood and stool concentrations of propionate will be analyzed relative to baseline using complementary modeling approaches.
First, repeated measurements over time will be analyzed using linear mixed-effects models with subject-specific random effects to account for within-individual correlation and irregular sampling, allowing estimation of population-level temporal exposure patterns following dosing.
Second, cumulative metabolite exposure from baseline will be summarized at the subject level using area-under-the-curve (AUC) metrics, calculated using the trapezoidal rule.
These AUC measures provide an integrated summary of longitudinal exposure and will be used to characterize dose-exposure relationships and inter-individual variability.
Exposure estimates derived from healthy volunteers will inform dose selection and optimization for subsequent studies in transplant patients.
|
At baseline and up to 3 weeks
|
|
blood and stool - Butyrate content
Tidsramme: At baseline and up to 3 weeks
|
Longitudinal blood and stool concentrations of butyrate will be analyzed relative to baseline using complementary modeling approaches.
First, repeated measurements over time will be analyzed using linear mixed-effects models with subject-specific random effects to account for within-individual correlation and irregular sampling, allowing estimation of population-level temporal exposure patterns following dosing.
Second, cumulative metabolite exposure from baseline will be summarized at the subject level using area-under-the-curve (AUC) metrics, calculated using the trapezoidal rule.
These AUC measures provide an integrated summary of longitudinal exposure and will be used to characterize dose-exposure relationships and inter-individual variability.
Exposure estimates derived from healthy volunteers will inform dose selection and optimization for subsequent studies in transplant patients.
|
At baseline and up to 3 weeks
|
|
Dosing adherence measures
Tidsramme: During 2 week intervention period
|
assessed by compliance subject's ability to take at least 75% of the specified dose on a weekly basis |
During 2 week intervention period
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Karamjeet S Sandhu, City of Hope Medical Center
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
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 25518 (Anden identifikator: City of Hope Medical Center)
- P30CA033572 (U.S. NIH-bevilling/kontrakt)
- NCI-2026-03337 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .