- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01197209
Neoadjuvant Study of In-situ REIC/Dkk-3 in Prostate Cancer
A Phase I Neoadjuvant Study of In-situ REIC/Dkk-3 Therapy Followed By Prostatectomy in Patients With High Risk Localized Prostate Cancer
Study Overview
Detailed Description
This is a phase I neoadjuvant gene therapy followed by prostatectomy, open-label, dose-escalation trial for prostate cancer patients with high risk of local recurrence after radical prostatectomy. Patients entered into this trial will have Prostate Cancer of Clinical stage T1c, T2 or T3 with a Gleason Score of between 7 (4+3) and 10 at the time of enrollment.
Patients will receive three 1 mL injections (3 mL total volume) of Ad-REIC/Dkk-3 into the prostate under transrectal ultrasound-guidance (TRUS) and, patients will undergo a radical prostatectomy four weeks after the injection.
Patients will receive treatment at one of three dose levels in a sequential dose-escalating design.
Three patients will be treated at each dose level unless a dose-limiting toxicity (DLT) is observed or MFD (defined as 1 x 10e12 vp/treatment) is achieved. Enrollment will proceed to the next dose level if 0 of 3 patients experiences a DLT; if one of the first 3 patients experiences a DLT, three additional patients will be enrolled until a second patient experiences a DLT (which defines the toxic dose) or until six total patients have been treated at that dose level, whichever comes first. If a second DLT is not experienced within that cohort, dose escalation may continue.
Additional patients will be enrolled a minimum of 14 days after treatment of the first patient in the cohort (sentinel patient).
If 2 DLTs are observed within a cohort, enrollment into the cohort will cease and the dose level immediately preceding that dose will be determined to be the MTD. If 2 non-lethal DLTs are observed in Cohort 1, a lower dose cohort (Cohort -1) may be initiated.
Once the MTD is defined, an additional 3-6 patients may be enrolled at that dose level to further evaluate safety of the MTD.
Patients will undergo a scheduled radical prostatectomy approximately 4 weeks after the Ad-REIC/Dkk-3 injection. The prostate tissue removed will be retained and for those patients treated at the MTD, assessed for REIC expression and evidence of apoptosis by TUNEL staining.
Study Type
Phase
- Phase 1
Contacts and Locations
Study Locations
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New York
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New York, New York, United States, 10029
- Mount Sinai School of Medicine
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Male aged between 20 and 75 years (inclusive) with histologically documented clinically localized, adenocarcinoma of the prostate scheduled to undergo a radical prostatectomy.
- Patient with clinical stage T1c, T2 or T3 with Primary Gleason score of 4 [total Gleason score of between 7 (4+3) and 10] at time of assessment for this trial.
- Recent (≤ 3 months prior to study entry) negative bone scan and CT scan of abdomen/pelvis.
- Life expectancy of at least 10 years.
- In good general health, free from clinically significant illness or disease (as determined by medical/surgical history, physical examination, weight, 12-lead ECG, and clinical laboratory tests)
- Appropriate surgical candidate for radical prostatectomy and a performance status of ≤ 2 (Zubrod scale)
- Patients should have adequate bone marrow function defined as an absolute peripheral granulocyte count ≥ 1,500 and platelet count of ≥ 100,000, adequate hepatic function with a total bilirubin ≤ 1.5 mg/dl and ALT < 4x the upper limits of normal, adequate renal function defined as serum creatinine ≤ 2.0 mg/dl
- Body Mass Index ≥ 18 and ≤ 35 kg/m2
- Patients must have normal coagulation profile (PT, PTT) and no history of substantial non-iatrogenic bleeding diatheses. Use of anticoagulants is limited to local use only (for control of central line patency).
- Patient is willing to refrain from sexual activity or agrees to use a barrier contraceptive device (e.g. condom) after treatment with Ad-REIC/Dkk-3 and until the prostatectomy operation.
- Patients must sign an informed consent indicating that they are aware of the investigational nature of the study, in keeping with the policies of the institution.
Exclusion Criteria:
- Previous or current hormonal treatment, chemotherapy, radiation therapy, immunotherapy or other investigational status drug within the past 4 weeks.
- Unable to tolerate transrectal ultrasound.
- Patients who are not appropriate surgical candidates for radical prostatectomy based on the evaluation of co-existent medical diseases and competing causes of death.
- Patients with uncontrolled cardiac, hepatic, renal or neurologic/psychiatric disorders are not eligible.
- Patients who are HIV positive or have chronic hepatitis B or C infections are not eligible (because of possible immune effects of these conditions).
- Patients with a clinical history of primary or secondary immunodeficiency, autoimmune disease or patients taking immunosuppressive drugs such as corticosteroids continuously for > 4 months [> 5 mg hydrocortisone/day] are ineligible. (The experimental treatment being evaluated in this protocol depends on an intact immune system. Patients who have a decreased immune competence may be less responsive to the experimental treatment and more susceptible to its toxicities.)
- As a result of medical review, physical examination, the Principal Investigator (or medically qualified nominee) considers the subject unfit for the study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Ad-REIC/Dkk-3 Arm
Active arm on Ad-REIC/Dkk-3
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REIC (Reduced Expression in Immortalized Cells) protein is down regulated in a variety of cancer cell lines including prostate tumors.
The REIC gene is identical to the Dickkopf-3 (Dkk-3) gene that is a member of the Dickkopf gene family.
Ad-REIC/Dkk-3 is designed as a viral vector that delivers a DNA plasmid capable of producing intracellular REIC protein.
The expression plasmid includes the full-length human cDNA sequence for REIC.
The adenovirus vector is a transport mechanism to infuse the REIC/Dkk-3 plasmid into the cell providing a temporary transfusion of REIC protein.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Maximum Tolerated Dose
Time Frame: 7-days
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To define the Maximum Tolerated Dose (MTD) for intertumoral injection (IT) of Ad-REIC/Dkk-3 viral vector.
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7-days
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Safety evaluation of adverse drug experiences compared with historical precedence
Time Frame: 28-days
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To assess the safety of in-situ therapy with REIC/Dkk-3 gene in prostate cancer patients with high risk of local recurrence after radical prostatectomy.
Safety events will be evaluated and assessed with regards to causality and in comparison with historical precedence for this patient population.
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28-days
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Pharmacodynamic Efficacy Markers
Time Frame: 28-days
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To assess the effectiveness of Ad-REIC/Dkk-3 in the treatment of prostate cancer as evaluated by the PSA biomarker and histologic examination of extracted prostate tissue.
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28-days
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Simon Hall, MD, Icahn School of Medicine at Mount Sinai
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- MTG-REIC-PC001
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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