Trial Outcomes & Findings for Effects of Dietary Fructose on Gut Microbiota and Fecal Metabolites in Obese Men and Postmenopausal Women: A Pilot Study (NCT NCT03339245)

NCT ID: NCT03339245

Last Updated: 2021-03-26

Results Overview

Difference in the distribution of fecal microbiota in each participant, between the fructose versus glucose supplemented diet arms of the study, as measured at the end of each intervention.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

13 participants

Primary outcome timeframe

assessed at Day 16 of each intervention, up to 64 days

Results posted on

2021-03-26

Participant Flow

Participant milestones

Participant milestones
Measure
Fructose, Then Glucose
Participants first receive Fructose Solution (75 grams) from Day 3 through Day 16 of an inpatient stay with usual diet. After a 2-3 week washout period, they will then receive Glucose Solution (75 grams) from Day 3 through Day 16 on a second inpatient stay with usual diet. Fructose Solution (75 Grams): Fructose given in divided doses at breakfast and dinner. Glucose Solution (75 grams): Glucose given in divided doses at breakfast and dinner.
Glucose, Then Fructose
Participants first receive Glucose Solution (75 grams) from Day 3 through Day 16 of an inpatient stay with usual diet. After a 2-3 week washout period, they will then receive Fructose Solution (75 Grams) from Day 3 through Day 16 on a second inpatient stay with usual diet. Fructose Solution (75 Grams): Fructose given in divided doses at breakfast and dinner. Glucose Solution (75 grams): Glucose given in divided doses at breakfast and dinner.
Overall Study
STARTED
6
7
Overall Study
COMPLETED
4
6
Overall Study
NOT COMPLETED
2
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Fructose, Then Glucose
Participants first receive Fructose Solution (75 grams) from Day 3 through Day 16 of an inpatient stay with usual diet. After a 2-3 week washout period, they will then receive Glucose Solution (75 grams) from Day 3 through Day 16 on a second inpatient stay with usual diet. Fructose Solution (75 Grams): Fructose given in divided doses at breakfast and dinner. Glucose Solution (75 grams): Glucose given in divided doses at breakfast and dinner.
Glucose, Then Fructose
Participants first receive Glucose Solution (75 grams) from Day 3 through Day 16 of an inpatient stay with usual diet. After a 2-3 week washout period, they will then receive Fructose Solution (75 Grams) from Day 3 through Day 16 on a second inpatient stay with usual diet. Fructose Solution (75 Grams): Fructose given in divided doses at breakfast and dinner. Glucose Solution (75 grams): Glucose given in divided doses at breakfast and dinner.
Overall Study
Adverse Event
1
1
Overall Study
Withdrawal by Subject
1
0

Baseline Characteristics

The row population indicates the N in each arm. This is a cross-over study, so each participant received the same intervention but in different order

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Glucose, Then Fructose
n=7 Participants
Participants first receive Glucose Solution (75 grams) from Day 3 through Day 16 of an inpatient stay with usual diet. After a 2-3 week washout period, they will then receive Fructose Solution (75 Grams) from Day 3 through Day 16 on a second inpatient stay with usual diet. Fructose Solution (75 Grams): Fructose given in divided doses at breakfast and dinner. Glucose Solution (75 grams): Glucose given in divided doses at breakfast and dinner.
Fructose, Then Glucose
n=6 Participants
Participants first receive Fructose Solution (75 grams) from Day 3 through Day 16 of an inpatient stay with usual diet. After a 2-3 week washout period, they will then receive Glucose Solution (75 grams) from Day 3 through Day 16 on a second inpatient stay with usual diet. Fructose Solution (75 Grams): Fructose given in divided doses at breakfast and dinner. Glucose Solution (75 grams): Glucose given in divided doses at breakfast and dinner.
Total
n=13 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
6 Participants
n=5 Participants
4 Participants
n=7 Participants
10 Participants
n=5 Participants
Age, Categorical
>=65 years
1 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
Age, Continuous
58 years
n=5 Participants • The row population indicates the N in each arm. This is a cross-over study, so each participant received the same intervention but in different order
57 years
n=7 Participants • The row population indicates the N in each arm. This is a cross-over study, so each participant received the same intervention but in different order
57.6 years
n=5 Participants • The row population indicates the N in each arm. This is a cross-over study, so each participant received the same intervention but in different order
Sex: Female, Male
Female
3 Participants
n=5 Participants
3 Participants
n=7 Participants
6 Participants
n=5 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
3 Participants
n=7 Participants
7 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants
n=5 Participants
5 Participants
n=7 Participants
11 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
5 Participants
n=5 Participants
4 Participants
n=7 Participants
9 Participants
n=5 Participants
Race (NIH/OMB)
White
2 Participants
n=5 Participants
2 Participants
n=7 Participants
4 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
7 participants
n=5 Participants
6 participants
n=7 Participants
13 participants
n=5 Participants

PRIMARY outcome

Timeframe: assessed at Day 16 of each intervention, up to 64 days

Population: Investigator has retired and access to results for each arm was not available for this outcome. Best efforts were made to obtain the data from the investigator; however, they were unsuccessful.

Difference in the distribution of fecal microbiota in each participant, between the fructose versus glucose supplemented diet arms of the study, as measured at the end of each intervention.

Outcome measures

Outcome data not reported

Adverse Events

Fructose, Then Glucose

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Glucose, Then Fructose

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Fructose, Then Glucose
n=4 participants at risk
Participants first receive Fructose Solution (75 grams) from Day 3 through Day 16 of an inpatient stay with usual diet. After a 2-3 week washout period, they will then receive Glucose Solution (75 grams) from Day 3 through Day 16 on a second inpatient stay with usual diet. Fructose Solution (75 Grams): Fructose given in divided doses at breakfast and dinner. Glucose Solution (75 grams): Glucose given in divided doses at breakfast and dinner.
Glucose, Then Fructose
n=6 participants at risk
Participants first receive Glucose Solution (75 grams) from Day 3 through Day 16 of an inpatient stay with usual diet. After a 2-3 week washout period, they will then receive Fructose Solution (75 Grams) from Day 3 through Day 16 on a second inpatient stay with usual diet. Fructose Solution (75 Grams): Fructose given in divided doses at breakfast and dinner. Glucose Solution (75 grams): Glucose given in divided doses at breakfast and dinner.
Gastrointestinal disorders
Bloating
50.0%
2/4 • Number of events 4 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
50.0%
3/6 • Number of events 3 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
Gastrointestinal disorders
nausea
25.0%
1/4 • Number of events 1 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
0.00%
0/6 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
Metabolism and nutrition disorders
elevated blood glucose
25.0%
1/4 • Number of events 1 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
16.7%
1/6 • Number of events 1 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
Nervous system disorders
lightheadedness
25.0%
1/4 • Number of events 1 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
0.00%
0/6 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
Musculoskeletal and connective tissue disorders
low back pain
0.00%
0/4 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.
16.7%
1/6 • Number of events 1 • 10 months
Adverse event data are reported per arm/group. Adverse event per intervention are not available because the Investigator has retired. Best efforts were made to obtain and reexamine the adverse event data; however, they were unsuccessful.

Additional Information

Dr. Peter R Holt

The Rockefeller University

Phone: 212-327-7706

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place