Trial Outcomes & Findings for Paclitaxel Poliglumex and Estradiol in Treating Patients With Stage IV Prostate Cancer (NCT NCT00459810)

NCT ID: NCT00459810

Last Updated: 2017-04-28

Results Overview

PSA response rate is defined at the number of patients who experienced a PSA decline of equal to or greater than 50%, confirmed by a second measurement at least 4 weeks later.

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

21 participants

Primary outcome timeframe

While receiving study agents (on average, 3 months)

Results posted on

2017-04-28

Participant Flow

Twenty-one patients enrolled in the trial between March 2007 and May 2008 in the medical clinics at Oregon Health \& Science University and the University of California at San Francisco.

Participant milestones

Participant milestones
Measure
Transdermal Estradiol and Paclitaxel Poliglumex
All subjects enrolled were treated with transdermal estradiol 0.2 mg/24 hours for 4 weeks followed by the same dose of transdermal estradiol and paclitaxel poliglumex PPX 150 mg/m2 IV every 28 days.
Overall Study
STARTED
21
Overall Study
COMPLETED
21
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Paclitaxel Poliglumex and Estradiol in Treating Patients With Stage IV Prostate Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Transdermal Estradiol and Paclitaxel Poliglumex
n=21 Participants
All subjects enrolled were treated with transdermal estradiol 0.2 mg/24 hours for 4 weeks followed by the same dose of transdermal estradiol and paclitaxel poliglumex PPX 150 mg/m2 IV every 28 days.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
4 Participants
n=5 Participants
Age, Categorical
>=65 years
17 Participants
n=5 Participants
Age, Continuous
70 years
STANDARD_DEVIATION 7.6 • n=5 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
Sex: Female, Male
Male
21 Participants
n=5 Participants
Region of Enrollment
United States
21 participants
n=5 Participants

PRIMARY outcome

Timeframe: While receiving study agents (on average, 3 months)

PSA response rate is defined at the number of patients who experienced a PSA decline of equal to or greater than 50%, confirmed by a second measurement at least 4 weeks later.

Outcome measures

Outcome measures
Measure
Transdermal Estradiol and Paclitaxel Poliglumex
n=21 Participants
All subjects enrolled were treated with transdermal estradiol 0.2 mg/24 hours for 4 weeks followed by the same dose of transdermal estradiol and paclitaxel poliglumex PPX 150 mg/m2 IV every 28 days.
Prostate Specific Antigen (PSA) Response Rate: Number of Subjects With Decreases in PSA of at Least 50%
0 Participants

SECONDARY outcome

Timeframe: While receiving study agents (on average, 3 months)

Measurable disease response rate by RECIST criteria. Response is defined as at least a 30% decrease in the sum of the longest diameter in measurable lesions (larger than 10mm at baseline).

Outcome measures

Outcome measures
Measure
Transdermal Estradiol and Paclitaxel Poliglumex
n=21 Participants
All subjects enrolled were treated with transdermal estradiol 0.2 mg/24 hours for 4 weeks followed by the same dose of transdermal estradiol and paclitaxel poliglumex PPX 150 mg/m2 IV every 28 days.
Measurable Disease Response Rate (Soft Tissue)
0 Participants

SECONDARY outcome

Timeframe: At time of progression by PSA or RECIST criteria

Time from Day 1 to Day of meeting criteria for PSA or Measurable Disease Progression

Outcome measures

Outcome measures
Measure
Transdermal Estradiol and Paclitaxel Poliglumex
n=21 Participants
All subjects enrolled were treated with transdermal estradiol 0.2 mg/24 hours for 4 weeks followed by the same dose of transdermal estradiol and paclitaxel poliglumex PPX 150 mg/m2 IV every 28 days.
Time to Disease Progression
28 Days
Interval 26.0 to 30.0

SECONDARY outcome

Timeframe: Measured at Date of Death from any cause

Defined as time from Day 1 of study regimen to Date of death from any cause.

Outcome measures

Outcome measures
Measure
Transdermal Estradiol and Paclitaxel Poliglumex
n=21 Participants
All subjects enrolled were treated with transdermal estradiol 0.2 mg/24 hours for 4 weeks followed by the same dose of transdermal estradiol and paclitaxel poliglumex PPX 150 mg/m2 IV every 28 days.
Time to Death
7.8 Months
Interval 4.8 to 10.8

SECONDARY outcome

Timeframe: Measured after 4 cycles of combination therapy

These correlative analyses were not completed. As there were no PSA responses, it was not possible to correlate serum estradiol, serum cathepsin B, or bone turnover markers with PSA response.

Outcome measures

Outcome data not reported

Adverse Events

Transdermal Estradiol and Paclitaxel Poliglumex

Serious events: 3 serious events
Other events: 20 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Transdermal Estradiol and Paclitaxel Poliglumex
n=21 participants at risk
All subjects enrolled were treated with transdermal estradiol 0.2 mg/24 hours for 4 weeks followed by the same dose of transdermal estradiol and paclitaxel poliglumex PPX 150 mg/m2 IV every 28 days.
Gastrointestinal disorders
Gastric Hemorrhage
4.8%
1/21 • Number of events 1 • While on study agents
Respiratory, thoracic and mediastinal disorders
Pneumonitis
4.8%
1/21 • Number of events 1 • While on study agents
Gastrointestinal disorders
Nausea and Vomiting
4.8%
1/21 • Number of events 1 • While on study agents

Other adverse events

Other adverse events
Measure
Transdermal Estradiol and Paclitaxel Poliglumex
n=21 participants at risk
All subjects enrolled were treated with transdermal estradiol 0.2 mg/24 hours for 4 weeks followed by the same dose of transdermal estradiol and paclitaxel poliglumex PPX 150 mg/m2 IV every 28 days.
Blood and lymphatic system disorders
hemoglobin decreased
42.9%
9/21 • While on study agents
Blood and lymphatic system disorders
Leukopenia
14.3%
3/21 • Number of events 20 • While on study agents
Blood and lymphatic system disorders
Lymphopenia
28.6%
6/21 • While on study agents
Blood and lymphatic system disorders
Thrombocytopenia
19.0%
4/21 • While on study agents
General disorders
Fatigue
28.6%
6/21 • While on study agents
Skin and subcutaneous tissue disorders
Rash
14.3%
3/21 • While on study agents
Gastrointestinal disorders
Anorexia
19.0%
4/21 • While on study agents
Gastrointestinal disorders
Constipation
23.8%
5/21 • While on study agents
Gastrointestinal disorders
Diarrhea
19.0%
4/21 • While on study agents
Gastrointestinal disorders
Nausea
47.6%
10/21 • While on study agents
Gastrointestinal disorders
Vomiting
33.3%
7/21 • While on study agents
Blood and lymphatic system disorders
Edema
9.5%
2/21 • While on study agents
Metabolism and nutrition disorders
Alkaline Phosphatase increased
9.5%
2/21 • While on study agents
Metabolism and nutrition disorders
Aspartate aminotransferase increased
52.4%
11/21 • While on study agents
Metabolism and nutrition disorders
Hyperbilirubinemia
9.5%
2/21 • While on study agents
Metabolism and nutrition disorders
Hyperglycemia
19.0%
4/21 • While on study agents
Metabolism and nutrition disorders
Hyperkalemia
9.5%
2/21 • While on study agents
Metabolism and nutrition disorders
Hypoalbuminemia
23.8%
5/21 • While on study agents
Metabolism and nutrition disorders
Hypocalcemia
23.8%
5/21 • While on study agents
Metabolism and nutrition disorders
Hypokalemia
19.0%
4/21 • While on study agents
Metabolism and nutrition disorders
Hyponatremia
28.6%
6/21 • While on study agents
Metabolism and nutrition disorders
Hypophosphatemia
14.3%
3/21 • While on study agents
Nervous system disorders
Peripheral Sensory Neuropathy
9.5%
2/21 • While on study agents
Respiratory, thoracic and mediastinal disorders
Dyspnea
9.5%
2/21 • While on study agents
Reproductive system and breast disorders
Breast pain
19.0%
4/21 • While on study agents
Reproductive system and breast disorders
Gynecomastia
19.0%
4/21 • While on study agents

Additional Information

Study Coordinator

Oregon Health & Science University Knight Cancer Institute

Phone: (503) 494-2897

Results disclosure agreements

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

Restriction type: GT60