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Neoadjuvant Weekly Ixabepilone for High Risk, Clinically Localized Prostate Cancer

BrUOG-PROS-221 Neoadjuvant Weekly Ixabepilone for High Risk, Clinically Localized Prostate Cancer: A Phase II Study

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00828308
Enrollment
16
Registered
2009-01-23
Start date
2009-02-28
Completion date
2016-12-31
Last updated
2022-03-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate Cancer

Keywords

localized, high risk, prostate cancer, neoadjuvant treatment

Brief summary

Ixabepilone, 16 mg/m2 or 20mg/m2, weekly x 3, in 4 week cycles, x 4 cycles. Prostatectomy 2-8 weeks after completion(standard of care and not a part of study)

Detailed description

Ixabepilone, 16 mg/m2 or 20mg/m2, weekly x 3, in 4 week cycles, x 4 cycles. Prostatectomy 2-8 weeks after completion of chemotherapy (this was standard of care). This protocol evaluated weekly ixabepilone prior to robotic prostatectomy for patients with high risk localized prostate cancer. PSA response rate, tumor margin status and pathologic responses were assessed.

Interventions

DRUGIxabepilone

Ixabepilone, 16 mg/m2 or 20mg/m2, weekly x 3, in 4 week cycles, x 4 cycles.

PROCEDUREProstatectomy

Prostatectomy 2-8 weeks after completion \*\*\*this was standard of care and not a part of the study\*\*

Sponsors

Rhode Island Hospital
CollaboratorOTHER
The Miriam Hospital
CollaboratorOTHER
Brown University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologic documentation of prostatic adenocarcinoma. Patients with small cell, neuroendocrine or transitional cell carcinomas are not eligible. * All eligible patients must have a known Gleason sum based on biopsy or TURP at the time of registration. * Clinically Localized Disease: Patients must have clinical stage T1-T3a and no radiographic evidence of metastatic disease as demonstrated by: * Either CT or MRI of the abdomen and pelvis, that demonstrate no nodes \> 1 cm: or endorectal MRI(If one or more lymph nodes(s) measures \> 1 cm, a negative biopsy is required.) * Negative bone scan (with plain films and /or MRI and/or CT scan confirmation, if necessary).(Positive PET and Prostascint scans are not considered proof of metastatic disease.) * Patients must have high risk disease defined as either: * Gleason Score 8-10 * PSA \> 15 ng/ml * Stage T3a * Stage T2c and Gleason score of 7 * Stage T2b, Gleason score of 7, greater than 50% of the cores positive from a single lobe. * No prior treatment for prostate cancer including prior surgery (excluding TURP), pelvic lymph node dissection, radiation therapy, chemotherapy or hormone therapy. * Patient must be appropriate candidates for radical prostatectomy with an estimated life expectancy \> 10 years as determined by an urologist. * ECOG PS 0-1 * Age \> 18 years of age. * Required initial laboratory values: * ANC \> 1500/ul * Platelet count \> 100,000/mm3 * Creatinine \< 2.0 mg/dl * Serum PSA \< 100 ng/ml * Bilirubin \< upper institutional limit of normal (ULN) * AST/ALT \< 2.5 X ULN

Exclusion criteria

* Active or uncontrolled infection. * Patients must not have other coexistent medical condition that would preclude protocol therapy. * Previous severe hypersensitivity reaction to a drug formulated in CremophoreL (polyoxyethylated castor oil). * Grade 1 or greater neuropathy (motor or sensory) at study entry

Design outcomes

Primary

MeasureTime frameDescription
Prostate-Specific Antigen (PSA) Responseafter 12 weeks of ixabepiloneDecrease in PSA:number of participants with decreased serum PSA level after 12 weeks of ixabepilone

Countries

United States

Participant flow

Recruitment details

First patient enrolled 2/11/09 and last patient enrolled was 3/30/11

Participants by arm

ArmCount
Ixabepilone
Ixabepilone, 16 mg/m2, weekly x 3, in 4 week cycles, x 4 cycles. Prostatectomy 2-8 weeks after completion of chemotherapy (this was standard of care and not a part of the study)
16
Total16

Baseline characteristics

CharacteristicIxabepilone
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
4 Participants
Age, Categorical
Between 18 and 65 years
12 Participants
Age, Continuous56.5 years
STANDARD_DEVIATION 29
Region of Enrollment
United States
16 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
16 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
16 / 16
serious
Total, serious adverse events
1 / 16

Outcome results

Primary

Prostate-Specific Antigen (PSA) Response

Decrease in PSA:number of participants with decreased serum PSA level after 12 weeks of ixabepilone

Time frame: after 12 weeks of ixabepilone

ArmMeasureValue (NUMBER)
IxabepiloneProstate-Specific Antigen (PSA) Response14 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026