Trial Outcomes & Findings for Gut Microbiome and p-Inulin in Hemodialysis (NCT NCT02572882)

NCT ID: NCT02572882

Last Updated: 2022-10-20

Results Overview

The weighted UniFrac distance was used to compute the distances for each sample. Weighted UniFrac distance uses species abundance information and weights the branch length with abundance difference. Weighted UniFrac distance is most sensitive to detect change in abundant lineages since it uses absolute abundance difference in its definition.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

13 participants

Primary outcome timeframe

28 weeks

Results posted on

2022-10-20

Participant Flow

The protocol allowed for enrollment of up to 20 individuals with the goal or having 10 participants complete the first 20 weeks of the study with satisfactory completeness of biosample collection.

Participant milestones

Participant milestones
Measure
Full Study Cohort
This was a sequential study in which participants moved through 3 phases - 8 weeks during which no treatment was administed, 12 weeks during which p-inulin was self-administered orally, 8g twice daily, and another 8 weeks during which no treatment was administered.
Overall Study
STARTED
13
Overall Study
COMPLETED
11
Overall Study
NOT COMPLETED
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Full Study Cohort
This was a sequential study in which participants moved through 3 phases - 8 weeks during which no treatment was administed, 12 weeks during which p-inulin was self-administered orally, 8g twice daily, and another 8 weeks during which no treatment was administered.
Overall Study
Withdrawal by Subject
1
Overall Study
Participant received kidney transplant
1

Baseline Characteristics

Gut Microbiome and p-Inulin in Hemodialysis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Participants
n=13 Participants
This is a sequential study in which participants are observed (no intervention) for 8 weeks (pre-treatment), then participants self-administer p-inulin 8g orally twice daily for 12 weeks (treatment phase), and then observed for a final 8 weeks during which no treatment was administered (post-treatment).
Age, Categorical
<=18 years
0 Participants
n=99 Participants
Age, Categorical
Between 18 and 65 years
12 Participants
n=99 Participants
Age, Categorical
>=65 years
1 Participants
n=99 Participants
Age, Continuous
48.2 years
STANDARD_DEVIATION 12.5 • n=99 Participants
Sex: Female, Male
Female
5 Participants
n=99 Participants
Sex: Female, Male
Male
8 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
12 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
Race (NIH/OMB)
Black or African American
11 Participants
n=99 Participants
Race (NIH/OMB)
White
2 Participants
n=99 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Region of Enrollment
United States
13 participants
n=99 Participants

PRIMARY outcome

Timeframe: 28 weeks

Population: Two participants withdrew at the beginning of the second phase of the trial. One participant with antibiotic use was not included in the microbiome composition analysis.

The weighted UniFrac distance was used to compute the distances for each sample. Weighted UniFrac distance uses species abundance information and weights the branch length with abundance difference. Weighted UniFrac distance is most sensitive to detect change in abundant lineages since it uses absolute abundance difference in its definition.

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=10 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
Week 4 Visit, pre-treatment phase
Week 8
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Within Participant Variability in Microbiome Composition by Treatment Phase
pre-treatment
0.165 weighted unifrac distrance
Interval 0.111 to 0.208
Within Participant Variability in Microbiome Composition by Treatment Phase
treatment
0.175 weighted unifrac distrance
Interval 0.129 to 0.228
Within Participant Variability in Microbiome Composition by Treatment Phase
post-treatment
0.210 weighted unifrac distrance
Interval 0.129 to 0.266

PRIMARY outcome

Timeframe: 28 weeks

Population: Two participants withdrew at the beginning of the second phase of the trial. One participant with antibiotic use was not included in the microbiome composition analysis.

The Euclidean distance was used to compute the distances for each sample. The Euclidean distance is defined as the distance between two points. Differences between samples were determined on the basis of distances from the initial measurements to account for participant-level differences in initial abundance of microorganisms.

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=10 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
Week 4 Visit, pre-treatment phase
Week 8
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Within Participant Variability in Stool Metabolome by Treatment Phase
pre-treatment
14.49 Euclidean distance
Interval 11.93 to 18.15
Within Participant Variability in Stool Metabolome by Treatment Phase
treatment
15.70 Euclidean distance
Interval 13.37 to 18.32
Within Participant Variability in Stool Metabolome by Treatment Phase
post-treatment
16.77 Euclidean distance
Interval 12.92 to 18.12

PRIMARY outcome

Timeframe: 28 weeks (8 weeks pre-treatment, 12 weeks of treatment, 8 weeks post-treatment)

Population: Two participants withdrew at the beginning of the second phase of the trial. One participant with antibiotic use was not included in the microbiome composition analysis.

The Euclidean distance was used to compute the distances for each sample. The Euclidean distance is defined as the distance between two points. Differences between samples were determined on the basis of distances from the initial measurements to account for participant-level differences in initial abundance of microorganisms.

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=10 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
Week 4 Visit, pre-treatment phase
Week 8
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Within Participant Variability in Plasma Metabolome by Treatment Phase
pre-treatment
9.48 Euclidean distance
Interval 8.04 to 10.59
Within Participant Variability in Plasma Metabolome by Treatment Phase
treatment
9.47 Euclidean distance
Interval 8.77 to 10.6
Within Participant Variability in Plasma Metabolome by Treatment Phase
post-treatment
9.72 Euclidean distance
Interval 8.76 to 11.09

SECONDARY outcome

Timeframe: GSRS was assessed at Weeks 0, 4, 8, 12, 16, 20, 24 and 28.

Population: Two participants withdrew at the beginning of the second phase of the trial.

Gastrointestinal symptoms as measure by the Gastrointestinal Symptom Rating Scale (GSRS). The GSRS total score is the sum of 15 0-3 items where 0 indicates absence and 3 an extreme degree of the symptom. A higher score indicates worse outcome. The minimum score is 0, the maximum score is 45.

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=13 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=13 Participants
Week 4 Visit, pre-treatment phase
Week 8
n=13 Participants
Week 8 visit, pre-treatment phase
Week 12
n=11 Participants
Week 12 visit, treatment phase
Week 16
n=11 Participants
Week 16 visit, treatment phase
Week 20
n=11 Participants
Week 20 visit, treatment phase
Week 24
n=11 Participants
Week 24 visit, post-treatment phase
Week 28
n=11 Participants
Week 28 visit, post-treatment phase
Change in Score of Gastrointestinal Symptom Rating Scale (GSRS) (Safety Outcome)
5.69 score on a scale
Standard Deviation 3.35
6.23 score on a scale
Standard Deviation 3.65
3.68 score on a scale
Standard Deviation 5.36
4.36 score on a scale
Standard Deviation 3.75
6.00 score on a scale
Standard Deviation 6.47
5.27 score on a scale
Standard Deviation 5.37
3.45 score on a scale
Standard Deviation 2.77
3.91 score on a scale
Standard Deviation 2.59

SECONDARY outcome

Timeframe: 12 weeks

Population: This outcome is only relevant during the p-inulin phase.

-Early discontinuation of p-inulin

Outcome measures

Outcome measures
Measure
Full Study Cohort
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=11 Participants
Week 4 Visit, pre-treatment phase
Week 8
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Number of Participants Who Discontinued Use of P-inulin (Tolerability Outcome)
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: 12 weeks

Population: Three participants reduced their p-inulin dose. This analysis only applies to the 12 week treatment arm.

-Reduction in p-inulin dose

Outcome measures

Outcome measures
Measure
Full Study Cohort
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=11 Participants
Week 4 Visit, pre-treatment phase
Week 8
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Number of Participants Who Reduce the Dose of P-inulin (Tolerability Outcome)
0 Participants
3 Participants
0 Participants

SECONDARY outcome

Timeframe: 28 weeks

-Adverse events per participant related to treatment as coded using the Medical Dictionary for Regulatory Activities (MedDRA) Coding System

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=13 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=11 Participants
Week 4 Visit, pre-treatment phase
Week 8
n=11 Participants
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Number of Participants With Adverse Events (Safety Outcome)
1 participants
2 participants
0 participants

SECONDARY outcome

Timeframe: 28 weeks

Population: This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.

Serious adverse events categorized by body systems, related to treatment as coded using the Medical Dictionary for Regulatory Activities (MedDRA) Coding System

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=13 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=11 Participants
Week 4 Visit, pre-treatment phase
Week 8
n=11 Participants
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Number of Serious Adverse Events (Safety Outcome)
3 Serious Adverse Events
0 Serious Adverse Events
1 Serious Adverse Events

SECONDARY outcome

Timeframe: 1 year

Population: Data not collected

Enrollment refusal rate

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 28 weeks

Population: This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment arm.

Percent of expected completed protocol-specified stool sample collections

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=13 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=11 Participants
Week 4 Visit, pre-treatment phase
Week 8
n=11 Participants
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Stool Specimen Collection Proportion - Protocol Adherence (Feasibility Outcome)
97 percentage of expected
100 percentage of expected
97 percentage of expected

SECONDARY outcome

Timeframe: 28 weeks

Population: This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.

Proportion of completed blood sample collections

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=13 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=11 Participants
Week 4 Visit, pre-treatment phase
Week 8
n=11 Participants
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Blood Specimen Collection Proportion - Protocol Adherence (Feasibility Outcome)
99 percentage of expected
100 percentage of expected
94 percentage of expected

SECONDARY outcome

Timeframe: 12 weeks

Population: This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.

Proportion of p-inulin packets used

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=13 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=11 Participants
Week 4 Visit, pre-treatment phase
Week 8
n=11 Participants
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Adherence Rate of P-inulin Use (Feasibility Outcome)
0 percent
89.5 percent
0 percent

SECONDARY outcome

Timeframe: 28 weeks

Number of withdrawals during each phase of the study

Outcome measures

Outcome measures
Measure
Full Study Cohort
n=13 Participants
This study includes three sequential phases: 1. Pre-treatment phase: 8 weeks during which no treatment was administered 2. p-Inulin phase: 12 weeks during which p-inulin was administered 8g orally twice daily 3. Post-treatment phase: 8 weeks during which no treatment was administered
Week 4
n=11 Participants
Week 4 Visit, pre-treatment phase
Week 8
n=11 Participants
Week 8 visit, pre-treatment phase
Week 12
Week 12 visit, treatment phase
Week 16
Week 16 visit, treatment phase
Week 20
Week 20 visit, treatment phase
Week 24
Week 24 visit, post-treatment phase
Week 28
Week 28 visit, post-treatment phase
Rate of Study Withdrawal (Feasibility Outcome)
0 Participants
2 Participants
0 Participants

Adverse Events

Pre-treatment

Serious events: 2 serious events
Other events: 1 other events
Deaths: 0 deaths

P-inulin

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Post-treatment

Serious events: 1 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Pre-treatment
n=13 participants at risk
This arm is the 8-week observation period before the p-inulin treatment phase.
P-inulin
n=11 participants at risk
This arm is the 12 week p-inulin treatment phase (8 grams twice daily, oral). p-inulin: 12 week self-administered treatment phase
Post-treatment
n=11 participants at risk
This arm is the 8-week observation period after the p-inulin treatment phase.
Injury, poisoning and procedural complications
Graft thrombosis
7.7%
1/13 • Number of events 1 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
Injury, poisoning and procedural complications
Graft dysfunction
0.00%
0/13 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
9.1%
1/11 • Number of events 1 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
Ear and labyrinth disorders
Vertigo
7.7%
1/13 • Number of events 2 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.

Other adverse events

Other adverse events
Measure
Pre-treatment
n=13 participants at risk
This arm is the 8-week observation period before the p-inulin treatment phase.
P-inulin
n=11 participants at risk
This arm is the 12 week p-inulin treatment phase (8 grams twice daily, oral). p-inulin: 12 week self-administered treatment phase
Post-treatment
n=11 participants at risk
This arm is the 8-week observation period after the p-inulin treatment phase.
Ear and labyrinth disorders
Vertigo
7.7%
1/13 • Number of events 2 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
Gastrointestinal disorders
Diarrhea
0.00%
0/13 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
9.1%
1/11 • Number of events 1 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
Respiratory, thoracic and mediastinal disorders
Shortness of breath
0.00%
0/13 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
9.1%
1/11 • Number of events 1 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.
0.00%
0/11 • 28 weeks from Baseline to End of Study
This is a sequential trial. The 13 participants from the pre-treatment phase moved to the p-inulin phase. Eleven of the 13 participants entered the post-treatment phase. Two participants withdrew prior to the post-treatment phase.

Additional Information

Natalie Kuzla

University of Pennsylvania

Phone: 215-573-2935

Results disclosure agreements

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