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
This clinical trial evaluates how propionate and butyrate supplementation alters intestinal health in healthy volunteers and whether it would be feasible to administer these supplements to patients undergoing allogeneic hematopoietic stem cell transplant in the future. Propionate and butyrate are short chain fatty acids naturally produced in the intestines during the fermentation of dietary fibers. Greater levels of propionate and butyrate may improve intestinal barrier function, and propionate specifically has been shown to modulate immunity, energy metabolism, and gut-brain communication. The protective effects of propionate and butyrate supplementation on intestinal health may be especially beneficial for patients undergoing donor stem cell transplant, as these patients can experience significant gastrointestinal injury during treatment. The results of this study may help researchers determine whether propionate and butyrate supplementation positively alters the gut microbiome and whether or not supplementation could be used in the future for patients undergoing a donor stem cell transplant.
연구 개요
상태
상태
정황
정황
개입 / 치료
개입 / 치료
상세 설명
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.
연구 유형
연구 유형
등록 (추정된)
등록
단계
단계
- 1단계
연락처 및 위치
연구 장소
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California
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Duarte, California, 미국, 91010
- City of Hope Medical Center
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연락하다:
- Karamjeet S. Sandhu
- 전화번호: 626-218-2405
- 이메일: ksandhu@coh.org
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수석 연구원:
- Karamjeet S. Sandhu
-
-
참여기준
자격 기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
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Documented informed consent of the participant and/or legally authorized representative
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Age: ≥ 18 years and ≤ 75 years old
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Ability to read and understand and willingness to sign a written informed consent
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Ability to understand English to fill out required forms (e.g. Pill Diary and Symptom Diary)
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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
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 지지 요법
- 할당: 해당 없음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
팔의 수
무기와 개입
참가자 그룹 / 팔참가자 그룹 / 팔 |
개입 / 치료개입 / 치료 |
|---|---|
|
실험적: 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. |
Undergo collection of blood samples
다른 이름들:
Given PO
다른 이름들:
Given PO
다른 이름들:
|
연구는 무엇을 측정합니까?
주요 결과 측정
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Subjects' ability to take at least 75% of the specified dose on a weekly basis (feasibility)
기간: During 2 week intervention period
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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
|
2차 결과 측정
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Incidence of adverse events
기간: 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
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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
기간: 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
기간: 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
기간: 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
|
공동 작업자 및 조사자
협력자
협력자
수사관
수사관
- 수석 연구원: Karamjeet S Sandhu, City of Hope Medical Center
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
연구 시작
기본 완료 (추정된)
기본 완료
연구 완료 (추정된)
연구 완료
연구 등록 날짜
최초 제출
최초 제출
QC 기준을 충족하는 최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
처음 게시됨
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
마지막 업데이트 게시됨
QC 기준을 충족하는 마지막 업데이트 제출
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
기타 연구 ID 번호
- 25518
- P30CA033572 (미국 NIH 보조금/계약)
- 25518 (기타 식별자: City of Hope Medical Center)
- NCI-2026-03337 (레지스트리 식별자: CTRP (Clinical Trial Reporting Program))
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
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