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Leuprolide Acetate or Goserelin Acetate With or Without Vismodegib Followed by Surgery in Treating Patients With Locally Advanced Prostate Cancer

A Randomized Phase Ib/II Study of Preoperative GDC-0449 and Androgen Ablation Compared to Androgen Ablation Alone Followed by Radical Prostatectomy for Select Patients With Locally Advanced Adenocarcinoma of the Prostate

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01163084
Enrollment
10
Registered
2010-07-15
Start date
2010-07-09
Completion date
2012-06-01
Last updated
2019-02-28

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

Conditions

Prostate Adenocarcinoma, Stage IIA Prostate Cancer AJCC v7, Stage IIB Prostate Cancer AJCC v7

Brief summary

This randomized phase I/II trial studies giving leuprolide acetate or goserelin acetate together with or without vismodegib followed by surgery to see how well they work in treating patients with prostate cancer that has spread from where it started to nearby tissue or lymph nodes. Androgens can cause the growth of prostate cancer cells. Antihormone therapy, such as leuprolide acetate or goserelin acetate, may lessen the amount of androgens made by the body. Vismodegib may slow the growth of tumor cells. Giving antihormone therapy together with vismodegib may be an effective treatment for prostate cancer.

Detailed description

PRIMARY OBJECTIVES: I. To assess the difference in less than or equal to 5% tumor involvement between patients between the two arms. SECONDARY OBJECTIVES: I. To assess differences in hedgehog signaling, androgen signaling, markers linked to high grade prostate cancer (PCa) progression, proliferation, apoptosis, and the expression of androgen producing enzymes in the tumor microenvironment between the two arms. II. To assess safety of preoperative GDC-0449 (vismodegib) in combination with luteinizing hormone-releasing hormone (LHRH). III. To assess the difference in proportion of patients with negative disease surgical margins between the two arms. IV. To collect and archive tissue from the primary tumor, bone marrow and blood (serum, plasma), bone marrow aspirate for future study. V. To assess difference in relapse rate (biochemical, objective) and time to progression. OUTLINE: Patients are randomized to 1 of 2 treatment arms. ARM I (androgen-ablation therapy and vismodegib): Patients receive LHRH analogue comprising leuprolide acetate intramuscularly (IM) or goserelin acetate subcutaneously (SC) on day 1 and vismodegib orally (PO) once daily (QD) on days 1-28. Treatment repeats every 28 days for up to 16 weeks in the absence of disease progression or unacceptable toxicity. ARM II (androgen-ablation therapy): Patients receive LHRH analogue comprising leuprolide acetate or goserelin acetate as in Arm I. Treatment repeats every 28 days for up to 16 weeks in the absence of disease progression or unacceptable toxicity. After completion of study therapy, patients undergo radical prostatectomy. After completion of study therapy, patients are followed up every 6 months for up to 8 years.

Interventions

DRUGGoserelin Acetate

Given SC

OTHERLaboratory Biomarker Analysis

Correlative studies

DRUGLeuprolide Acetate

Given IM

DRUGVismodegib

Given PO

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients must have histologic proof of prostatic adenocarcinoma via a minimum of 6 core biopsy samples * Clinical stage T1c or T2 with high-grade disease (Gleason's 8-10) on initial biopsy and prostate specific antigen (PSA) \> 10 ng/ml, or clinical stage T2b-T2c with Gleason's grade \>= 7 * No evidence of metastatic disease as determined by imaging * Initial therapy with antiandrogen treatment is allowed but must be within 4 weeks prior to study enrollment * Appropriate surgical candidate for radical prostatectomy and an Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 (Karnofsky \>= 60%) * Absence of major co-morbidity as determined by the treating physician * Leukocytes \>= 3,000/mcL * Absolute neutrophil count \>= 1,500/mcL * Platelets \>=100,000/mcL * Total bilirubin within normal institutional limits * Aspartate aminotransferase (AST/serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT/serum glutamate pyruvate transaminase \[SGPT\]) =\< 2.5 X institutional upper limit of normal * Creatinine within normal institutional limits OR creatinine clearance \>= 50 mL/min/1.73 m\^2 for patients with creatinine levels above institutional normal * Patients must have prothrombin time (PT), partial thromboplastin time (PTT) and fibrinogen levels within institutional normal limits and no history of substantial non-iatrogenic bleeding diathesis * Men and their female partners must agree to use two forms of contraception (i.e., barrier contraception and one other method of contraception) during study treatment and for at least 12 months post-treatment * Ability to understand and the willingness to sign a written informed consent document

Exclusion criteria

* Histologic variants in the primary tumor (histologic variants other than adenocarcinoma) * Patients who have had chemotherapy or radiotherapy for prostate cancer prior to entering the study * Patients who have received prior treatment with GDC-0449 * Patients may not be receiving any other investigational agents * Patients receiving previous androgen ablation or current androgen ablation of greater than 4 week's duration * Patients who are not appropriate surgical candidates for radical prostatectomy based on the evaluation of co-existent medical diseases and competing causes of death (such as but not limited to, unstable angina, myocardial infarction within the previous 6 months, or use of ongoing maintenance therapy for life-threatening ventricular arrhythmia, uncontrolled hypertension) * History of allergic reactions attributed to compounds of similar chemical or biologic composition to GDC-0449 or LHRH analogues * Patients taking medications with narrow therapeutic indices that are metabolized by cytochrome P450 (CYP450), including warfarin sodium (Coumadin®) are ineligible * Patients with malabsorption syndrome or other condition that would interfere with intestinal absorption; patients must be able to swallow capsules * Patients with clinically important (in the opinion of the treating physician) history of liver disease, including viral or other hepatitis or cirrhosis are ineligible * Patients with uncontrolled hypocalcemia, hypomagnesemia, hyponatremia or hypokalemia defined as less than the lower limit of normal for the institution, despite adequate electrolyte supplementation are excluded from this study * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements * Human immunodeficiency virus (HIV)-positive patients on combination antiretroviral therapy are ineligible * Patients with prior malignancy if there is an increased chance (\>= 30%) of relapse in the following five years (in the opinion of the treating physician) * Patients who have received systemic treatment for cancer within the last 6 months

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Patients With =< 5% Tumor InvolvementBaseline up to 4 months or radical prostatectomy, whichever comes firstEach patient's pathologic staging will be assessed from the samples collected from prostatectomy. Will be descriptively summarized. Two-sided Chi-Square test will be used to provide the test of significance between the 2 groups of LHRHa versus LHRHa plus vismodegib.

Other

MeasureTime frameDescription
Differences in Relapse Rates by PSA Levels (Biochemical)Date of surgery, then every 6 months, up to 8 yearsWill be descriptively summarized.
Time to PSA (Biochemical) Progression, Defined as PSA RecurrenceFrom the date of surgery and elevated post operative PSA concentration, assessed up to 8 yearsWill be descriptively summarized. PSA recurrence is defined as two (2) serial measureable rises in PSA concentration above the undetectable level with the standard assay (\> 0.1 ng/mL).
Time to PSA (Clinical) Progression, Defined as a Serial Rise in PSA Concentration in the Presence of Castrate Serum Testosterone Concentration or Radiographic Evidence of ProgressionFrom the date of surgery and elevated post operative PSA concentration, assessed up to 8 yearsWill be descriptively summarized. PSA recurrence is defined as two (2) serial measureable rises in PSA concentration above the undetectable level with the standard assay (\> 0.1 ng/mL).
Proportion of Patients Expressing Differences in Hedgehog, Androgen Signaling and Related Genes MarkersUp to 8 years
Differences in the Rate of Positive Surgical Margins Between the Two GroupsBaseline to up to 8 yearsWill be descriptively summarized.
Differences in Relapse Rates by Bone Scan/Computed Tomography Scan (Objective)Baseline to up to 8 yearsWill be descriptively summarized.
Proportion of Patients With PSA =< 0.2 ng/mLUp to 8 yearsWill be descriptively summarized.

Countries

United States

Participant flow

Recruitment details

Participants were recruited by physicians in the Genitourinary Medical Oncology Clinic and Urology clinic.

Pre-assignment details

10 participants started but only 9 were randomized

Participants by arm

ArmCount
Group A- GDC-0449 and Androgen Ablation (LHRHa)
Group A will receive 150mg GDC-0449 daily for 3 months prior to radical prostatectomy.
4
Group- B Androgren Ablation (LHRHa) Alone
Patients will receive an LHRHa (monthly injection or three-month injection) for a maximum of 4 months before a prostatectomy is performed.
5
Total9

Baseline characteristics

CharacteristicGroup A- GDC-0449 and Androgen Ablation (LHRHa)Group- B Androgren Ablation (LHRHa) AloneTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants1 Participants3 Participants
Age, Categorical
Between 18 and 65 years
2 Participants4 Participants6 Participants
Age, Continuous63 years63 years63 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants1 Participants4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants3 Participants4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants2 Participants
Race (NIH/OMB)
White
3 Participants4 Participants7 Participants
Region of Enrollment
United States
4 participants5 participants9 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
4 Participants5 Participants9 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 5
other
Total, other adverse events
4 / 45 / 5
serious
Total, serious adverse events
0 / 40 / 5

Outcome results

Primary

Proportion of Patients With =< 5% Tumor Involvement

Each patient's pathologic staging will be assessed from the samples collected from prostatectomy. Will be descriptively summarized. Two-sided Chi-Square test will be used to provide the test of significance between the 2 groups of LHRHa versus LHRHa plus vismodegib.

Time frame: Baseline up to 4 months or radical prostatectomy, whichever comes first

Population: Results was not determined.

Other Pre-specified

Differences in Relapse Rates by Bone Scan/Computed Tomography Scan (Objective)

Will be descriptively summarized.

Time frame: Baseline to up to 8 years

Other Pre-specified

Differences in Relapse Rates by PSA Levels (Biochemical)

Will be descriptively summarized.

Time frame: Date of surgery, then every 6 months, up to 8 years

Other Pre-specified

Differences in the Rate of Positive Surgical Margins Between the Two Groups

Will be descriptively summarized.

Time frame: Baseline to up to 8 years

Other Pre-specified

Proportion of Patients Expressing Differences in Hedgehog, Androgen Signaling and Related Genes Markers

Time frame: Up to 8 years

Other Pre-specified

Proportion of Patients With PSA =< 0.2 ng/mL

Will be descriptively summarized.

Time frame: Up to 8 years

Other Pre-specified

Time to PSA (Biochemical) Progression, Defined as PSA Recurrence

Will be descriptively summarized. PSA recurrence is defined as two (2) serial measureable rises in PSA concentration above the undetectable level with the standard assay (\> 0.1 ng/mL).

Time frame: From the date of surgery and elevated post operative PSA concentration, assessed up to 8 years

Other Pre-specified

Time to PSA (Clinical) Progression, Defined as a Serial Rise in PSA Concentration in the Presence of Castrate Serum Testosterone Concentration or Radiographic Evidence of Progression

Will be descriptively summarized. PSA recurrence is defined as two (2) serial measureable rises in PSA concentration above the undetectable level with the standard assay (\> 0.1 ng/mL).

Time frame: From the date of surgery and elevated post operative PSA concentration, assessed up to 8 years

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