Sandostatin for Patients With Androgen Independent Prostate Cancer
A Phase II Study of the Somatostatin Analog Sandostatin LAR in Patients With Androgen Independent Prostate Cancer
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Primary Objective:
To evaluate changes in prostate specific antigen (PSA) in patients with androgen independent prostate cancer who are treated with Sandostatin LAR.
Secondary Objective:
To evaluate the effects of Sandostatin LAR on circulating levels of Insulin Growth Factor-1 and Insulin Growth Factor Binding Protein 1.
To evaluate the safety of Sandostatin LAR in this patient population. To evaluate the pre versus post treatment mitogenic effects of serum derived from subjects with prostate cancer compared to pretreatment serum.
Patients with androgen independent prostate cancer who do not have bone or visceral metastases are selected for this trial because they are a patient population that is likely to have no symptoms from the disease or rapid progression that would suggest the need for chemotherapy. Additionally, given the preclinical data suggesting that IGF-1 expression and signaling occurs concomitantly with the onset of androgen independent growth, it is felt that testing in the "early" androgen independent state is warranted. This trial is consistent with overall goal to develop IGF-1 targeted therapies in patients with disease progression and a lower disease burden.
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
California
-
San Francisco, California, United States, 94115
- University of California, San Francisco
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Histologically confirmed adenocarcinoma of the prostate.
- Biochemical disease progression following androgen deprivation and therapy with at least one antiandrogen defined as three rises in PSA with PSA determinations at least 4 weeks apart and each PSA value > 0.2 ng/ml.
- Four weeks since prior therapy with Flutamide.
- Six weeks since prior therapy with Bicalutamide or Nilutamide.
- Current PSA > 5 ng/ml.
- Testosterone <50 ng/dL.
- SGPT (ALT) < 1.5 times upper limit of normal.
- Fasting blood glucose > 60 mg/dL.
- ECOG performance status 0, 1 or 2.
- No visceral or bony metastatic disease (Lymph node only metastases are allowed).
- No prior chemotherapy for prostate cancer.
- No current treatment with insulin or an oral hypoglycemic.
- No history of treatment with octreotide analogs for prostate cancer.
- No NYHA Class 3 or 4 cardiac status.
Exclusion Criteria:
- Diabetes Mellitus requiring medical therapy and/or that which is not controlled by dietary means (HbA1C<6.0).
- A history of gallstones that has been clinically significant. Patients who have undergone cholecystectomy are eligible.
- Other concomitant medical or psychiatric condition which would make it undesirable, in the physician's opinion, for the patient to participate in the protocol or would jeopardize compliance with the protocol requirements.
- Prior treatment with chemotherapy for prostate cancer.
- No current treatment with Saw Palmetto, or Proscar. Patients must be off these medicines for more than 4 weeks.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: 1
|
Sandostatin 30mg intramuscular every 28 days
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
PSA Response
Time Frame: 12 weeks
|
Number of participants with a PSA decline of at least 50% from Baseline during the first 3 cycles of therapy, confirmed by a second measurement at least 2 weeks later.
|
12 weeks
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Pre-post Percent Change in Circulating Levels of IGF-1 and IGF-Binding Protein 1.
Time Frame: Baseline, 12 weeks
|
Serum was batched and IGF and IGFBP levels were assayed at one time at the end of the study using an enzyme-linked immunoabsorbent assay (ELISA) method by Diagnostic Systems Laboratories (Webster, TX).
|
Baseline, 12 weeks
|
|
Grade 4-5 Adverse Events
Time Frame: 12 weeks
|
12 weeks
|
|
|
Pre Versus Post Treatment Mitogenic Effects.
Time Frame: 12 Weeks
|
12 Weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Charles Ryan, MD, University of California, San Francisco
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- UCSF055514
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