Trial Outcomes & Findings for Study of Chitosan for Pharmacologic Manipulation of AGE Levels in Prostate Cancer Patients (NCT NCT03712371)

NCT ID: NCT03712371

Last Updated: 2025-06-10

Results Overview

The maximum tolerated dose is defined as the dose that produces no more than 1 dose-limiting toxicity (DLT)in 6 subjects. Per protocol a DLT is defined as Grade 3 or higher hypophosphatemia and/ or Grade 3 or higher of any of the following toxicities, that the investigator deems related to chitosan, that do not improve or resolve within 7 days of onset: flatulence, increased stool bulkiness, bloating, nausea, heartburn

Recruitment status

TERMINATED

Study phase

PHASE1/PHASE2

Target enrollment

12 participants

Primary outcome timeframe

112 days

Results posted on

2025-06-10

Participant Flow

Participant milestones

Participant milestones
Measure
Dose Level 1
Chitosan 500mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 2
Chitosan 1000mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 3
Chitosan 1500mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 4
Chitosan 2000mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Overall Study
STARTED
3
3
3
3
Overall Study
COMPLETED
3
3
3
2
Overall Study
NOT COMPLETED
0
0
0
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Dose Level 1
Chitosan 500mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 2
Chitosan 1000mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 3
Chitosan 1500mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 4
Chitosan 2000mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Overall Study
Lack of Efficacy
0
0
0
1

Baseline Characteristics

Study of Chitosan for Pharmacologic Manipulation of AGE Levels in Prostate Cancer Patients

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Chitosan Dose Level 1
n=3 Participants
ChChitosan dosing 500mg orally twice daily for 85 days.
Chitosan Dose Level 2
n=3 Participants
Chitosan dosing 1000mg orally twice daily for 85 days.
Chitosan Dose Level 3
n=3 Participants
Chitosan dosing 1500mg orally twice daily for 85 days.
Chitosan Dose Level 4
n=3 Participants
Chitosan dosing 2000mg orally twice daily for 85 days.
Total
n=12 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
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
1 Participants
n=21 Participants
Age, Categorical
>=65 years
3 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
2 Participants
n=4 Participants
11 Participants
n=21 Participants
Age, Continuous
68 years
n=5 Participants
75 years
n=7 Participants
73 years
n=5 Participants
69 years
n=4 Participants
69.5 years
n=21 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Sex: Female, Male
Male
3 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
3 Participants
n=4 Participants
12 Participants
n=21 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 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
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
1 Participants
n=21 Participants
Race (NIH/OMB)
White
3 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
3 Participants
n=4 Participants
11 Participants
n=21 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Region of Enrollment
United States
3 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
3 Participants
n=4 Participants
12 Participants
n=21 Participants

PRIMARY outcome

Timeframe: 112 days

The maximum tolerated dose is defined as the dose that produces no more than 1 dose-limiting toxicity (DLT)in 6 subjects. Per protocol a DLT is defined as Grade 3 or higher hypophosphatemia and/ or Grade 3 or higher of any of the following toxicities, that the investigator deems related to chitosan, that do not improve or resolve within 7 days of onset: flatulence, increased stool bulkiness, bloating, nausea, heartburn

Outcome measures

Outcome measures
Measure
Dose Level 1
n=3 Participants
Chitosan 500mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 2
n=3 Participants
Chitosan 1000mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 3
n=3 Participants
Chitosan 1500mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days.
Dose Level 4
n=3 Participants
Chitosan 2000mg twice daily for a 28-day DLT evaluation period, and for a total treatment duration of 85 days
Maximum Tolerated Dose as Assessed by Number of Participants Who Experienced a Dose Limiting Toxicity
0 Participants
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: 112 days

Population: No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 112 days

Population: No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 112 days

Population: No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 112 days

Population: No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 112 days

Population: No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 112 days

Population: No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 112 days

Population: No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

No participants were analyzed for this outcome, therefore no data was collected. Study was terminated.

Outcome measures

Outcome data not reported

Adverse Events

Chitosan Dose Level 1

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

Chitosan Dose Level 2

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

Chitosan Dose Level 3

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

Chitosan Dose Level 4

Serious events: 1 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Chitosan Dose Level 1
n=3 participants at risk
Chitosan 500mg orally twice daily for a 28 day DLT period and for a total dosing regimen of 85 days.
Chitosan Dose Level 2
n=3 participants at risk
Chitosan 1000mg orally twice daily for a 28 day DLT period and for a total dosing regimen of 85 days.
Chitosan Dose Level 3
n=3 participants at risk
Chitosan 1500mg orally twice daily for a 28 day DLT period and for a total dosing regimen of 85 days.
Chitosan Dose Level 4
n=3 participants at risk
Chitosan 2000mg orally twice daily for a 28 day DLT period and for a total dosing regimen of 85 days.
Musculoskeletal and connective tissue disorders
arthralgia
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0

Other adverse events

Other adverse events
Measure
Chitosan Dose Level 1
n=3 participants at risk
Chitosan 500mg orally twice daily for a 28 day DLT period and for a total dosing regimen of 85 days.
Chitosan Dose Level 2
n=3 participants at risk
Chitosan 1000mg orally twice daily for a 28 day DLT period and for a total dosing regimen of 85 days.
Chitosan Dose Level 3
n=3 participants at risk
Chitosan 1500mg orally twice daily for a 28 day DLT period and for a total dosing regimen of 85 days.
Chitosan Dose Level 4
n=3 participants at risk
Chitosan 2000mg orally twice daily for a 28 day DLT period and for a total dosing regimen of 85 days.
Gastrointestinal disorders
bloating
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Gastrointestinal disorders
flatulence
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Eye disorders
eye redness
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Eye disorders
blurred vision
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
General disorders
fatigue
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
General disorders
generalized discomfort
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Reproductive system and breast disorders
erectile dysfunction
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Gastrointestinal disorders
nausea
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Gastrointestinal disorders
diarrhea
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Gastrointestinal disorders
indigestion
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Nervous system disorders
dizziness
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Nervous system disorders
lightheadedness
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Renal and urinary disorders
dysuria
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
General disorders
dry mouth
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Psychiatric disorders
depression
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Gastrointestinal disorders
constipation
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
66.7%
2/3 • Number of events 2 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Renal and urinary disorders
bladder neck contracture
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
General disorders
hypersomnia
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
General disorders
non-cardiac chest pain
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
General disorders
headache
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Metabolism and nutrition disorders
weight gain
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Renal and urinary disorders
frequent urination
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Gastrointestinal disorders
increased stool bulkiness
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Nervous system disorders
difficulty with balance
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
General disorders
cognitive slowness
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Musculoskeletal and connective tissue disorders
decreased muscle mass
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Renal and urinary disorders
increased urinary incontinence
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Renal and urinary disorders
nocturia
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Musculoskeletal and connective tissue disorders
neuropathic pain - limbs
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
Gastrointestinal disorders
abdominal pain
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
33.3%
1/3 • Number of events 1 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0
0.00%
0/3 • 1 year, 5 months, 14 days
NCI CTCAE version 5.0

Additional Information

Alan Brisendine, CCRP, Manager, Sponsor-Investigator Support Unit

Medical University of South Carolina, Hollings Cancer Center, Clinical Trials

Phone: 843-792-9007

Results disclosure agreements

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