Trial Outcomes & Findings for Sirolimus, Docetaxel, and Carboplatin in Treating Patients With Metastatic Castration-Resistant Prostate Cancer (NCT NCT02565901)

NCT ID: NCT02565901

Last Updated: 2021-10-01

Results Overview

Will be determined by the level of genetic expression of WNT16, IL6, or SFRP2 in tissue after chemotherapy (carboplatin/docetaxel) compared to background/baseline measurement. The primary metric of DDSP induction will be quantitative reverse transcription-polymerase chain reaction, which is quantitative, but in the event of ribonucleic acid degradation in sample processing, the alternative measure will be immunohistochemistry (0-2 scale of expression).

Recruitment status

TERMINATED

Study phase

PHASE1/PHASE2

Target enrollment

28 participants

Primary outcome timeframe

Baseline up to day 21 after starting treatment

Results posted on

2021-10-01

Participant Flow

Participant milestones

Participant milestones
Measure
Arm I (Sirolimus, Docetaxel, Carboplatin)
Patients receive docetaxel IV over 30-60 minutes and carboplatin IV over 30 minutes on day 1. Beginning in cycle 2 and continuing in subsequent cycles, patients also receive sirolimus PO on day -2. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Arm II (Sirolimus, Docetaxel, Carboplatin)
Patients receive sirolimus PO on day -2. Patients also receive docetaxel IV over 30-60 minutes and carboplatin IV over 30-60 minutes on day 1. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Phase 1 Group
Patients treated with docetaxel, carboplatin and sirolimus in the phase 1 component of study
Overall Study
STARTED
11
11
6
Overall Study
COMPLETED
11
11
6
Overall Study
NOT COMPLETED
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Sirolimus, Docetaxel, and Carboplatin in Treating Patients With Metastatic Castration-Resistant Prostate Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Arm I (Sirolimus, Docetaxel, Carboplatin)
n=11 Participants
Patients receive docetaxel IV over 30-60 minutes and carboplatin IV over 30 minutes on day 1. Beginning in cycle 2 and continuing in subsequent cycles, patients also receive sirolimus PO on day -2. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Arm II (Sirolimus, Docetaxel, Carboplatin)
n=11 Participants
Patients receive sirolimus PO on day -2. Patients also receive docetaxel IV over 30-60 minutes and carboplatin IV over 30-60 minutes on day 1. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Phase 1 Group
n=6 Participants
Patients treated with docetaxel, carboplatin and sirolimus in the phase 1 component of study
Total
n=28 Participants
Total of all reporting groups
Age, Continuous
72 years
n=5 Participants
75 years
n=7 Participants
73 years
n=5 Participants
72 years
n=4 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
Sex: Female, Male
Male
11 Participants
n=5 Participants
11 Participants
n=7 Participants
6 Participants
n=5 Participants
28 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
1 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants
n=5 Participants
11 Participants
n=7 Participants
5 Participants
n=5 Participants
26 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 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
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
White
11 Participants
n=5 Participants
8 Participants
n=7 Participants
5 Participants
n=5 Participants
24 Participants
n=4 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
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
1 Participants
n=4 Participants
Region of Enrollment
United States
11 participants
n=5 Participants
11 participants
n=7 Participants
6 participants
n=5 Participants
28 participants
n=4 Participants

PRIMARY outcome

Timeframe: Baseline up to day 21 after starting treatment

Population: Results do not exist. Because of COVID, the laboratory which would have performed the analysis was shut down for an entire year and inadequate funding exists for data analysis.

Will be determined by the level of genetic expression of WNT16, IL6, or SFRP2 in tissue after chemotherapy (carboplatin/docetaxel) compared to background/baseline measurement. The primary metric of DDSP induction will be quantitative reverse transcription-polymerase chain reaction, which is quantitative, but in the event of ribonucleic acid degradation in sample processing, the alternative measure will be immunohistochemistry (0-2 scale of expression).

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Up to 3 years

Safety will be assessed through summaries of adverse events, vital signs, physical examinations, and clinical laboratory test data. Adverse events will then be quantified via CTCAE 4.0.

Outcome measures

Outcome measures
Measure
Arm I (Sirolimus, Docetaxel, Carboplatin)
n=11 Participants
Patients receive docetaxel IV over 30-60 minutes and carboplatin IV over 30 minutes on day 1. Beginning in cycle 2 and continuing in subsequent cycles, patients also receive sirolimus PO on day -2. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Arm II (Sirolimus, Docetaxel, Carboplatin)
n=11 Participants
Patients receive sirolimus PO on day -2. Patients also receive docetaxel IV over 30-60 minutes and carboplatin IV over 30-60 minutes on day 1. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Phase 1 Group
n=6 Participants
Patients treated with docetaxel, carboplatin and sirolimus in the phase 1 component of study
Incidence of Adverse Events Graded According to the National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phases I and II)
2 Grade 3 or 4 AE
2 Grade 3 or 4 AE
0 Grade 3 or 4 AE

SECONDARY outcome

Timeframe: Baseline to up to 3 years

PSA decline from the level at registration will be quantified for each patient and proportion of patients with PSA decline divided by the total number of patients enrolled in study will be described.

Outcome measures

Outcome measures
Measure
Arm I (Sirolimus, Docetaxel, Carboplatin)
n=11 Participants
Patients receive docetaxel IV over 30-60 minutes and carboplatin IV over 30 minutes on day 1. Beginning in cycle 2 and continuing in subsequent cycles, patients also receive sirolimus PO on day -2. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Arm II (Sirolimus, Docetaxel, Carboplatin)
n=11 Participants
Patients receive sirolimus PO on day -2. Patients also receive docetaxel IV over 30-60 minutes and carboplatin IV over 30-60 minutes on day 1. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Phase 1 Group
n=6 Participants
Patients treated with docetaxel, carboplatin and sirolimus in the phase 1 component of study
Percentage of Patients With Reduction in Prostate Specific Antigen According to the Prostate Cancer Working Group 2 (PCWG2) Criteria (Phases I and II)
36 Percent with PSA decline
36 Percent with PSA decline
50 Percent with PSA decline

Adverse Events

Arm I (Sirolimus, Docetaxel, Carboplatin)

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

Arm II (Sirolimus, Docetaxel, Carboplatin)

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

Phase 1 Group

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Arm I (Sirolimus, Docetaxel, Carboplatin)
n=11 participants at risk
Patients receive docetaxel IV over 30-60 minutes and carboplatin IV over 30 minutes on day 1. Beginning in cycle 2 and continuing in subsequent cycles, patients also receive sirolimus PO on day -2. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Arm II (Sirolimus, Docetaxel, Carboplatin)
n=11 participants at risk
Patients receive sirolimus PO on day -2. Patients also receive docetaxel IV over 30-60 minutes and carboplatin IV over 30-60 minutes on day 1. Treatment repeats every 21 days for 10 cycles in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Docetaxel: Given IV Laboratory Biomarker Analysis: Correlative studies Sirolimus: Given PO
Phase 1 Group
n=6 participants at risk;n=11 participants at risk
Patients treated with docetaxel, carboplatin and sirolimus in the phase 1 component of study
Blood and lymphatic system disorders
Neutropenia
18.2%
2/11 • Number of events 2 • During time on study to 30 days after last therapy. This was up to 2 years.
CTCAE 4.0 definitions of adverse events were used. Patients were evaluated with complete blood counts and comprehensive panels with each cycle and as clinically indicated
18.2%
2/11 • Number of events 2 • During time on study to 30 days after last therapy. This was up to 2 years.
CTCAE 4.0 definitions of adverse events were used. Patients were evaluated with complete blood counts and comprehensive panels with each cycle and as clinically indicated
0.00%
0/6 • During time on study to 30 days after last therapy. This was up to 2 years.
CTCAE 4.0 definitions of adverse events were used. Patients were evaluated with complete blood counts and comprehensive panels with each cycle and as clinically indicated

Additional Information

Dr. Bruce Montgomery

University of Washington

Phone: 206-598-0860

Results disclosure agreements

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