Trial Outcomes & Findings for Paclitaxel and CBT-1(Registered Trademark) to Treat Solid Tumors (NCT NCT00972205)

NCT ID: NCT00972205

Last Updated: 2012-07-19

Results Overview

An area under the concentration curve (AUC) was calculated for 99mTc counts over the liver, lungs, and heart. An equation was applied to determine the increase in sestamibi in the liver: \[(AUCpost - AUC baseline)/(AUC baseline)\] x 100.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

12 participants

Primary outcome timeframe

sestamibi scanning was performed on day 0 and day 6, allowing scans to be performed pre and post CBT-1 administration

Results posted on

2012-07-19

Participant Flow

Participant milestones

Participant milestones
Measure
Paclitaxel and CBT-1 to Treat Solid Tumors
Patients will be treated with oral CBT-1 at a dose of 500 mg/m\^2 daily for 7 days in divided doses and repeated every 21 days for 7 days beginning with cycle 1 of each cycle provided cycles are not delayed. Paclitaxel will be 135 mg/m\^2 intravenously on day 6 over 180 minutes. Cycles are repeated every 21 days provided there is no delay, and will be administered on day 6 of each cycle.
Overall Study
STARTED
12
Overall Study
COMPLETED
12
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Paclitaxel and CBT-1(Registered Trademark) to Treat Solid Tumors

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Paclitaxel and CBT-1 to Treat Solid Tumors
n=12 Participants
Patients will be treated with oral CBT-1 at a dose of 500 mg/m\^2 daily for 7 days in divided doses and repeated every 21 days for 7 days beginning with cycle 1 of each cycle provided cycles are not delayed. Paclitaxel will be 135 mg/m\^2 intravenously on day 6 over 180 minutes. Cycles are repeated every 21 days provided there is no delay, and will be administered on day 6 of each cycle.
Age, Categorical
<=18 years
0 Participants
n=93 Participants
Age, Categorical
Between 18 and 65 years
9 Participants
n=93 Participants
Age, Categorical
>=65 years
3 Participants
n=93 Participants
Age Continuous
60.79 years
STANDARD_DEVIATION 9.50 • n=93 Participants
Sex: Female, Male
Female
4 Participants
n=93 Participants
Sex: Female, Male
Male
8 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
12 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
Race/Ethnicity, Customized
White
11 Participants
n=93 Participants
Race/Ethnicity, Customized
Asian
1 Participants
n=93 Participants
Region of Enrollment
United States
12 participants
n=93 Participants

PRIMARY outcome

Timeframe: sestamibi scanning was performed on day 0 and day 6, allowing scans to be performed pre and post CBT-1 administration

Population: As planned imaging data from 10 pts were analyzed.

An area under the concentration curve (AUC) was calculated for 99mTc counts over the liver, lungs, and heart. An equation was applied to determine the increase in sestamibi in the liver: \[(AUCpost - AUC baseline)/(AUC baseline)\] x 100.

Outcome measures

Outcome measures
Measure
Paclitaxel and CBT-1 to Treat Solid Tumors
n=10 Participants
Patients will be treated with oral CBT-1 at a dose of 500 mg/m\^2 daily for 7 days in divided doses and repeated every 21 days for 7 days beginning with cycle 1 of each cycle provided cycles are not delayed. Paclitaxel will be 135 mg/m\^2 intravenously on day 6 over 180 minutes. Cycles are repeated every 21 days provided there is no delay, and will be administered on day 6 of each cycle.
Percent Increase in Sestamibi Retention in the Liver as a Measure of P-glycoprotein Inhibition
71.9 percent increase sestamibi retention
Interval 34.7 to 100.8

PRIMARY outcome

Timeframe: 18 months

Here are the number of participants with adverse events. For the detailed list of adverse events see the adverse event module.

Outcome measures

Outcome measures
Measure
Paclitaxel and CBT-1 to Treat Solid Tumors
n=12 Participants
Patients will be treated with oral CBT-1 at a dose of 500 mg/m\^2 daily for 7 days in divided doses and repeated every 21 days for 7 days beginning with cycle 1 of each cycle provided cycles are not delayed. Paclitaxel will be 135 mg/m\^2 intravenously on day 6 over 180 minutes. Cycles are repeated every 21 days provided there is no delay, and will be administered on day 6 of each cycle.
Number of Participants With Adverse Events
12 Participants

SECONDARY outcome

Timeframe: Rhodamine efflux was performed on blood drawn prior to CBT-1 ingestion and after 6 days of dosing.

Population: Rhodamine 123 fluorescence was assessed in CD56+cells after a 30 min loading period with or without exogenously added valspodar and a 60 min efflux period followed, continuing the cells with or without exogenous valspodar to generate Efflux and PSC/Efflux histograms. Percent decrease in difference between these histograms is reported.

Rhodamine 123 was added to whole blood obtained before and after CBT-1. The blood was incubated, layered on lymphocyte separation medium and centrifuged. Peripheral blood mononuclear cells(PBMCs)were isolated, washed and incubated in rhodamine-free medium with or without valspodar. Cells were washed and incubated in phycoerythrin-labeled anti-CD56 antibody or negative control antibody. Rhodamine 123 fluorescence was assessed in CD56+cells with or without valspodar and a 60 min efflux period,continuing the cells without or with valspodar to generate Efflux and PSC/Efflux histograms.

Outcome measures

Outcome measures
Measure
Paclitaxel and CBT-1 to Treat Solid Tumors
n=12 Participants
Patients will be treated with oral CBT-1 at a dose of 500 mg/m\^2 daily for 7 days in divided doses and repeated every 21 days for 7 days beginning with cycle 1 of each cycle provided cycles are not delayed. Paclitaxel will be 135 mg/m\^2 intravenously on day 6 over 180 minutes. Cycles are repeated every 21 days provided there is no delay, and will be administered on day 6 of each cycle.
Percent Inhibition of Rhodamine Efflux From CD56+Cells Post Treatment
78 Percent inhibition of rhodamine efflux
Interval 51.0 to 100.0

SECONDARY outcome

Timeframe: Baseline to progression

Response is determined by the Response Evaluation Criteria in Solid Tumors (RECIST) Criteria. Complete response (CR)-disappearance of all target lesions, Partial response (PR)-at least a 30% decrease in the sum of the longest diameter(LD)of target lesions, stable disease (SD) - neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease. See the Protocol Link module for further details about the RECIST Criteria.

Outcome measures

Outcome measures
Measure
Paclitaxel and CBT-1 to Treat Solid Tumors
n=12 Participants
Patients will be treated with oral CBT-1 at a dose of 500 mg/m\^2 daily for 7 days in divided doses and repeated every 21 days for 7 days beginning with cycle 1 of each cycle provided cycles are not delayed. Paclitaxel will be 135 mg/m\^2 intravenously on day 6 over 180 minutes. Cycles are repeated every 21 days provided there is no delay, and will be administered on day 6 of each cycle.
Number of Participants Who Had an Overall Response
2 participants with response

Adverse Events

Paclitaxel and CBT-1 to Treat Solid Tumors

Serious events: 3 serious events
Other events: 12 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Paclitaxel and CBT-1 to Treat Solid Tumors
n=12 participants at risk
Patients will be treated with oral CBT-1 at a dose of 500 mg/m\^2 daily for 7 days in divided doses and repeated every 21 days for 7 days beginning with cycle 1 of each cycle provided cycles are not delayed. Paclitaxel will be 135 mg/m\^2 intravenously on day 6 over 180 minutes. Cycles are repeated every 21 days provided there is no delay, and will be administered on day 6 of each cycle.
Infections and infestations
Infection (pneumonia)with normal absolute neutrophil count (ANC)
8.3%
1/12 • Number of events 1 • 18 months
Vascular disorders
Other: SVC (Superior vena cava) Syndrome
8.3%
1/12 • Number of events 1 • 18 months
Cardiac disorders
Pericardial Effusion
8.3%
1/12 • Number of events 1 • 18 months

Other adverse events

Other adverse events
Measure
Paclitaxel and CBT-1 to Treat Solid Tumors
n=12 participants at risk
Patients will be treated with oral CBT-1 at a dose of 500 mg/m\^2 daily for 7 days in divided doses and repeated every 21 days for 7 days beginning with cycle 1 of each cycle provided cycles are not delayed. Paclitaxel will be 135 mg/m\^2 intravenously on day 6 over 180 minutes. Cycles are repeated every 21 days provided there is no delay, and will be administered on day 6 of each cycle.
Investigations
ALKALINE PHOSPHATASE
50.0%
6/12 • Number of events 8 • 18 months
Immune system disorders
ALLERGIC REACTION
8.3%
1/12 • Number of events 1 • 18 months
Respiratory, thoracic and mediastinal disorders
ALLERGIC RHINITIS
16.7%
2/12 • Number of events 3 • 18 months
Skin and subcutaneous tissue disorders
ALOPECIA
25.0%
3/12 • Number of events 3 • 18 months
Investigations
ALT/SGPT
41.7%
5/12 • Number of events 10 • 18 months
Metabolism and nutrition disorders
ANOREXIA
50.0%
6/12 • Number of events 9 • 18 months
Investigations
AST/SGOT
66.7%
8/12 • Number of events 12 • 18 months
Nervous system disorders
ATAXIA
25.0%
3/12 • Number of events 4 • 18 months
Investigations
BICARBONATE, SERUM LOW
16.7%
2/12 • Number of events 3 • 18 months
Investigations
BILIRUBIN
33.3%
4/12 • Number of events 5 • 18 months
Eye disorders
BLURRED VISION
8.3%
1/12 • Number of events 1 • 18 months
Psychiatric disorders
CONFUSION
8.3%
1/12 • Number of events 1 • 18 months
Gastrointestinal disorders
CONSTIPATION
33.3%
4/12 • Number of events 5 • 18 months
Respiratory, thoracic and mediastinal disorders
COUGH
33.3%
4/12 • Number of events 5 • 18 months
Investigations
CREATININE
8.3%
1/12 • Number of events 3 • 18 months
Gastrointestinal disorders
DIARRHEA
75.0%
9/12 • Number of events 16 • 18 months
Gastrointestinal disorders
DISTENTION
8.3%
1/12 • Number of events 1 • 18 months
Nervous system disorders
DIZZINESS
16.7%
2/12 • Number of events 3 • 18 months
Gastrointestinal disorders
DRY MOUTH
8.3%
1/12 • Number of events 1 • 18 months
Respiratory, thoracic and mediastinal disorders
DYSPNEA
66.7%
8/12 • Number of events 9 • 18 months
General disorders
EDEMA, H&N
16.7%
2/12 • Number of events 2 • 18 months
General disorders
EDEMA, LIMB
25.0%
3/12 • Number of events 3 • 18 months
General disorders
FATIGUE
83.3%
10/12 • Number of events 17 • 18 months
General disorders
FEVER
25.0%
3/12 • Number of events 3 • 18 months
Vascular disorders
FLUSHING
8.3%
1/12 • Number of events 1 • 18 months
Gastrointestinal disorders
HEARTBURN
25.0%
3/12 • Number of events 5 • 18 months
Infections and infestations
HEMOGLOBIN
100.0%
12/12 • Number of events 25 • 18 months
Renal and urinary disorders
HEMOGLOBINURIA
8.3%
1/12 • Number of events 1 • 18 months
Gastrointestinal disorders
HEMORRHAGE-GI, UPPER GI NOS
8.3%
1/12 • Number of events 1 • 18 months
Metabolism and nutrition disorders
HYPERCALCEMIA
8.3%
1/12 • Number of events 1 • 18 months
Metabolism and nutrition disorders
HYPERGLYCEMIA
100.0%
12/12 • Number of events 28 • 18 months
Metabolism and nutrition disorders
HYPERKALEMIA
8.3%
1/12 • Number of events 1 • 18 months
Skin and subcutaneous tissue disorders
HYPERPIGMENTATION
8.3%
1/12 • Number of events 1 • 18 months
Vascular disorders
HYPERTENSION
25.0%
3/12 • Number of events 3 • 18 months
Metabolism and nutrition disorders
HYPERURICEMIA
25.0%
3/12 • Number of events 4 • 18 months
Metabolism and nutrition disorders
HYPOALBUMINEMIA
100.0%
12/12 • Number of events 17 • 18 months
Metabolism and nutrition disorders
HYPOCALCEMIA
25.0%
3/12 • Number of events 5 • 18 months
Metabolism and nutrition disorders
HYPOGLYCEMIA
8.3%
1/12 • Number of events 1 • 18 months
Metabolism and nutrition disorders
HYPOKALEMIA
25.0%
3/12 • Number of events 4 • 18 months
Metabolism and nutrition disorders
HYPOMAGNESEMIA
58.3%
7/12 • Number of events 8 • 18 months
Metabolism and nutrition disorders
HYPONATREMIA
66.7%
8/12 • Number of events 11 • 18 months
Metabolism and nutrition disorders
HYPOPHOSPHATEMIA
50.0%
6/12 • Number of events 10 • 18 months
Vascular disorders
HYPOTENSION
25.0%
3/12 • Number of events 3 • 18 months
Endocrine disorders
HYPOTHYROIDISM
8.3%
1/12 • Number of events 1 • 18 months
Infections and infestations
INFECTION, URINARY TRACT NOS
8.3%
1/12 • Number of events 1 • 18 months
Investigations
INR
8.3%
1/12 • Number of events 1 • 18 months
Investigations
LEUKOCYTES
75.0%
9/12 • Number of events 14 • 18 months
Investigations
LYMPHOPENIA
16.7%
2/12 • Number of events 2 • 18 months
Psychiatric disorders
MOOD ALTERATION-ANXIETY
16.7%
2/12 • Number of events 2 • 18 months
Gastrointestinal disorders
MUCOSITIS (CLINICAL EXAM), ORAL CAVITY
16.7%
2/12 • Number of events 2 • 18 months
Skin and subcutaneous tissue disorders
NAIL CHANGES
8.3%
1/12 • Number of events 1 • 18 months
Gastrointestinal disorders
NAUSEA
83.3%
10/12 • Number of events 14 • 18 months
Nervous system disorders
NEUROPATHY-CRANIAL: CN-V MOTOR-JAW MUSCLES; SENSORY-FACIAL
8.3%
1/12 • Number of events 1 • 18 months
Nervous system disorders
NEUROPATHY-SENSORY
41.7%
5/12 • Number of events 5 • 18 months
Investigations
NEUTROPHILS
66.7%
8/12 • Number of events 12 • 18 months
Renal and urinary disorders
OTHER: DYSURIA
8.3%
1/12 • Number of events 1 • 18 months
Infections and infestations
OTHER: INFECTION NOS
16.7%
2/12 • Number of events 2 • 18 months
Investigations
OTHER: LDH
33.3%
4/12 • Number of events 4 • 18 months
Injury, poisoning and procedural complications
OTHER: PERFORATION NOS
8.3%
1/12 • Number of events 1 • 18 months
Cardiac disorders
OTHER: PULMONARY STENOSIS NOS
16.7%
2/12 • Number of events 2 • 18 months
Musculoskeletal and connective tissue disorders
OTHER: RUQ PAIN
8.3%
1/12 • Number of events 1 • 18 months
Gastrointestinal disorders
PAIN, THROAT/PHARYNX/LARYNX
8.3%
1/12 • Number of events 1 • 18 months
General disorders
PAIN NOS
16.7%
2/12 • Number of events 2 • 18 months
Gastrointestinal disorders
PAIN, ABD NOS
50.0%
6/12 • Number of events 8 • 18 months
Musculoskeletal and connective tissue disorders
PAIN, BACK
25.0%
3/12 • Number of events 3 • 18 months
Cardiac disorders
PAIN, CHEST/THORAX NOS
33.3%
4/12 • Number of events 4 • 18 months
Nervous system disorders
PAIN, HEAD/HEADACHE
8.3%
1/12 • Number of events 1 • 18 months
Musculoskeletal and connective tissue disorders
PAIN, JOINT
50.0%
6/12 • Number of events 10 • 18 months
Musculoskeletal and connective tissue disorders
PAIN, MUSCLE
25.0%
3/12 • Number of events 4 • 18 months
Gastrointestinal disorders
PAIN, RECTUM
8.3%
1/12 • Number of events 1 • 18 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
PAIN, TUMOR
8.3%
1/12 • Number of events 1 • 18 months
Investigations
PLATELETS
41.7%
5/12 • Number of events 9 • 18 months
Renal and urinary disorders
PROTEINURIA
50.0%
6/12 • Number of events 7 • 18 months
Skin and subcutaneous tissue disorders
PRURITIS
8.3%
1/12 • Number of events 1 • 18 months
Investigations
PTT
8.3%
1/12 • Number of events 1 • 18 months
General disorders
RIGORS/CHILLS
16.7%
2/12 • Number of events 2 • 18 months
Gastrointestinal disorders
TASTE ALTERATION
16.7%
2/12 • Number of events 2 • 18 months
Renal and urinary disorders
URINARY RETENTION
16.7%
2/12 • Number of events 2 • 18 months
Respiratory, thoracic and mediastinal disorders
VOICE CHANGES
8.3%
1/12 • Number of events 1 • 18 months
Gastrointestinal disorders
VOMITING
75.0%
9/12 • Number of events 12 • 18 months
Cardiac disorders
PLEURAL EFFUSION
8.3%
1/12 • Number of events 1 • 18 months
Skin and subcutaneous tissue disorders
DRY SKIN
8.3%
1/12 • Number of events 1 • 18 months
Metabolism and nutrition disorders
HYPERMAGNESEMIA
8.3%
1/12 • Number of events 1 • 18 months
Psychiatric disorders
MOOD ALTERATION, DEPRESSION
8.3%
1/12 • Number of events 1 • 18 months
Vascular disorders
OTHER: LYMPHEDEMA
8.3%
1/12 • Number of events 1 • 18 months

Additional Information

Susan S. Bates, M.D.

National Cancer Institute (NCI), National Institutes of Health (NIH)

Phone: 301-402-0984

Results disclosure agreements

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