Prostatic NeoplasmsPhase 1NCT00403221
Phase I - Pre-Radical Prostatectomy RTVP-1 Gene Therapy for Prostate Cancer
A Phase 1 study testing RTVP-1 Gene in people with Prostatic Neoplasms, run by Baylor College of Medicine at 1 site in United States.
Trial summary
The purpose of this study is to conduct a Phase I clinical trial involving in situ RTVP-1 gene therapy for prostate cancer. We will conduct necessary safety evaluations on a new adenovirus that contains the human genes for RTVP-1. Read more about this study
- Who is it for?
- Ages 18 years and older, men only
- Conditions the study is for
- Prostatic Neoplasms
- What is being tested?
- RTVP-1 Gene
- How many people
- 19 participants
- Where
- 1 siteUnited States
- Study dates
- Aug 2006to Apr 2011
- Phase
- Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Histologic proof of prostatic adenocarcinoma without evidence of regional and/or distant metastasis, clinical stage T1c, T2 or T3 with high grade disease (Gleason's 7 - 10) on initial biopsy, or PSA greater than 10 ng/ml with any stage or Gleason score.
- Recent (equal to or less than 1 month prior to study entry) negative bone scan and CT scan of abdomen/pelvis.
- Life expectancy of at least 10 years.
- Appropriate surgical candidate for radical prostatectomy and a performance status of equal to or less than 2 (Zubrod scale).
- Patients should have adequate bone marrow function defined as an absolute peripheral granulocyte count equal to or greater than 1,500 and platelet count of equal to or greater than 100,000, adequate hepatic function with a bilirubin equal to or less than 1.5 mg per cent and SGPT less than 2 x the upper limits of normal, adequate renal function defined as serum creatinine equal to or less than 2.0 mg per cent.
- 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).
- 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.
Who cannot join
- 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 history of primary or secondary immunodeficiency or patients taking immunosuppressive drugs such as corticosteroids continuously for greater than 4 months [greater than 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.)
Trial locations and contacts
1 site in 1 country.
United States1 site
Baylor College of Medicine - Scott Department of Urology
Houston, Texas, 77030
About this study
Official title: A Phase I Study of In-Situ, Neoadjuvant, Pre-Radical Prostatectomy RTVP-1 Gene Therapy in Patients With Locally Advanced Adenocarcinoma of the Prostate (SPORE)
The purpose of this study is to conduct a Phase I clinical trial involving in situ RTVP-1 gene therapy for prostate cancer. We will conduct necessary safety evaluations on a new adenovirus that contains the human genes for RTVP-1. This virus will then be evaluated for safety in men with prostate cancer prior to radical prostatectomy. Based on the preclinical data, we hope that this treatment will induce not only a local cytotoxic and antiangiogenic effect but also, a systemic antitumor immune response capable of eradicating micrometastatic disease (the reason for recurrence in many of these patients).
Read the detailed description
The population selected for this study includes patients with locally advanced and/or poorly differentiated tumors. These patients have an unacceptably high failure rate when treated by radical prostatectomy alone (over 50% fail within 5 years). The pattern of failure varies. While some patients present with a local recurrence, many have both a local recurrence and distant metastases, or just distant metastases. It is reasonable to assume that many, if not most of these patients, actually harbor micrometastases, present but undiagnosed clinically, at the time of their radical prostatectomy. Our hypothesis is that the cytotoxic, proapoptotic, antiangiogenic and immune stimulatory activities of in-situ RTVP-1 gene therapy will lower the incidence of local tumor recurrences when given to patients prior to surgery. The second part of our hypothesis is that RTVP-1 gene therapy will induce a systemic anti-tumor immune response, which will eliminate pre-existing micrometastases in some of these patients and lower the overall failure rate.
While this Phase I study is not designed to answer these questions, we hope to obtain mechanistic evidence in support of this hypothesis. A Phase II study will then be proposed (and properly powered), to study the efficacy of this approach.
Based on our experience with HSV-tk and GCV in-situ gene therapy, it appears that maximal immune stimulation occurs about 2 weeks following vector injection. Furthermore, repeat injections of an adenoviral vector do not result in excess toxicity or in the generation of anti-adenoviral antibodies sufficient to suppress vector activity. We propose here an intraprostatic injection of RTVP-1 in an adenoviral vector 4-6 weeks prior to radical prostatectomy, in order to allow full expression of the gene therapy tissue effects.
- Conditions
- Prostatic Neoplasms
- Being tested
- RTVP-1 Gene
- Keywords
- Gene therapy, Prostate cancer, Immunology, Angiogenesis inhibition, Phase I clinical trial
- Medical subject headings
- Prostatic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
RTVP-1 GeneGenetic
Cohort Level #1 1.0 x 1010vp Cohort Level #2 5.0x1010vp Cohort Level #3 1.0 x 1011vp Cohort Level #4 5.0x1011vp Cohort Level #5 1.0 x 1012vp Cohort Level #6 5.0x1012vp
One dose only followed by a radical prostatectomy 4 weeks later.
What is being measured
The primary outcome is the main question the study is designed to answer.
Assessment of safety/toxicity
Measured: After treatment with 3-6 patients per cohort level, the patients will be assessed for the frequency of complications to be assured that they do not exceed those anticipated.
Secondary outcomes (1)
To collect data on the morphologic and cytotoxic changes in the radical prostatectomy specimen
Measured: Tumor response as measured by cytoreduction is not likely to be the major effect of the treatment.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Nov 2006 (estimated)
- Study startAug 2006
- Primary completionApr 2011
- Study completionApr 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Prostatic NeoplasmsStudies of the same condition, open and under way.
- More trials run by Baylor College of MedicineThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 19 participants (actual)
Sponsor and investigators
- Lead sponsor
- Baylor College of Medicine
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Dov Kadmon, Baylor College of Medicine
- Investigators
- Dov Kadmon, M.D., Principal investigator, Baylor College of Medicine
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00403221
- Sponsor's protocol ID
- H-11112
- Other IDs
- P50CA058204
- Status last verified
- Feb 2012
- First submitted
- 21 Nov 2006
- Last updated
- 10 Feb 2012
- Results posted
- No
Publications
Satoh T, Timme TL, Saika T, Ebara S, Yang G, Wang J, Ren C, Kusaka N, Mouraviev V, Thompson TC. Adenoviral vector-mediated mRTVP-1 gene therapy for prostate cancer. Hum Gene Ther. 2003 Jan 20;14(2):91-101. doi: 10.1089/104303403321070793.
PubMed 12614561Ren C, Li L, Goltsov AA, Timme TL, Tahir SA, Wang J, Garza L, Chinault AC, Thompson TC. mRTVP-1, a novel p53 target gene with proapoptotic activities. Mol Cell Biol. 2002 May;22(10):3345-57. doi: 10.1128/MCB.22.10.3345-3357.2002.
PubMed 11971968Ren C, Li L, Yang G, Timme TL, Goltsov A, Ren C, Ji X, Addai J, Luo H, Ittmann MM, Thompson TC. RTVP-1, a tumor suppressor inactivated by methylation in prostate cancer. Cancer Res. 2004 Feb 1;64(3):969-76. doi: 10.1158/0008-5472.can-03-2592.
PubMed 14871827Naruishi K, Timme TL, Kusaka N, Fujita T, Yang G, Goltsov A, Satoh T, Ji X, Tian W, Abdelfattah E, Men T, Watanabe M, Tabata K, Thompson TC. Adenoviral vector-mediated RTVP-1 gene-modified tumor cell-based vaccine suppresses the development of experimental prostate cancer. Cancer Gene Ther. 2006 Jul;13(7):658-63. doi: 10.1038/sj.cgt.7700919. Epub 2006 Feb 17.
PubMed 16485011Ren C, Ren CH, Li L, Goltsov AA, Thompson TC. Identification and characterization of RTVP1/GLIPR1-like genes, a novel p53 target gene cluster. Genomics. 2006 Aug;88(2):163-72. doi: 10.1016/j.ygeno.2006.03.021. Epub 2006 May 22.
PubMed 16714093
Study at a glance
From the registry record, last updated by the sponsor on 10 Feb 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase I Study of In-Situ, Neoadjuvant, Pre-Radical Prostatectomy RTVP-1 Gene Therapy in Patients With Locally Advanced Adenocarcinoma of the Prostate (SPORE)
- ClinicalTrials.gov ID
- NCT00403221
- Acronym / sponsor ID
- H-11112
- Conditions
- Prostatic Neoplasms
- Keywords
- Gene therapy, Prostate cancer, Immunology, Angiogenesis inhibition, Phase I clinical trial
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 19 participants (actual)
- Lead sponsor
- Baylor College of MedicineUniversity, hospital or other
- Study start
- Aug 2006
- Primary completion
- Apr 2011 (actual)
- Study completion
- Apr 2011 (actual)
- First posted
- 23 Nov 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to conduct a Phase I clinical trial involving in situ RTVP-1 gene therapy for prostate cancer. We will conduct necessary safety evaluations on a new adenovirus that contains the human genes for RTVP-1. This virus will then be evaluated for safety in men with prostate cancer prior to radical prostatectomy. Based on the preclinical data, we hope that this treatment will induce not only a local cytotoxic and antiangiogenic effect but also, a systemic antitumor immune response capable of eradicating micrometastatic disease (the reason for recurrence in many of these patients).
Detailed description
The population selected for this study includes patients with locally advanced and/or poorly differentiated tumors. These patients have an unacceptably high failure rate when treated by radical prostatectomy alone (over 50% fail within 5 years). The pattern of failure varies. While some patients present with a local recurrence, many have both a local recurrence and distant metastases, or just distant metastases. It is reasonable to assume that many, if not most of these patients, actually harbor micrometastases, present but undiagnosed clinically, at the time of their radical prostatectomy. Our hypothesis is that the cytotoxic, proapoptotic, antiangiogenic and immune stimulatory activities of in-situ RTVP-1 gene therapy will lower the incidence of local tumor recurrences when given to patients prior to surgery. The second part of our hypothesis is that RTVP-1 gene therapy will induce a systemic anti-tumor immune response, which will eliminate pre-existing micrometastases in some of these patients and lower the overall failure rate.
While this Phase I study is not designed to answer these questions, we hope to obtain mechanistic evidence in support of this hypothesis. A Phase II study will then be proposed (and properly powered), to study the efficacy of this approach.
Based on our experience with HSV-tk and GCV in-situ gene therapy, it appears that maximal immune stimulation occurs about 2 weeks following vector injection. Furthermore, repeat injections of an adenoviral vector do not result in excess toxicity or in the generation of anti-adenoviral antibodies sufficient to suppress vector activity. We propose here an intraprostatic injection of RTVP-1 in an adenoviral vector 4-6 weeks prior to radical prostatectomy, in order to allow full expression of the gene therapy tissue effects.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Histologic proof of prostatic adenocarcinoma without evidence of regional and/or distant metastasis, clinical stage T1c, T2 or T3 with high grade disease (Gleason's 7 - 10) on initial biopsy, or PSA greater than 10 ng/ml with any stage or Gleason score.
- Recent (equal to or less than 1 month prior to study entry) negative bone scan and CT scan of abdomen/pelvis.
- Life expectancy of at least 10 years.
- Appropriate surgical candidate for radical prostatectomy and a performance status of equal to or less than 2 (Zubrod scale).
- Patients should have adequate bone marrow function defined as an absolute peripheral granulocyte count equal to or greater than 1,500 and platelet count of equal to or greater than 100,000, adequate hepatic function with a bilirubin equal to or less than 1.5 mg per cent and SGPT less than 2 x the upper limits of normal, adequate renal function defined as serum creatinine equal to or less than 2.0 mg per cent.
Key exclusion criteria (6 listed)
- 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).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| RTVP-1 GeneCohort Level #1 1.0 x 1010vp Cohort Level #2 5.0x1010vp Cohort Level #3 1.0 x 1011vp Cohort Level #4 5.0x1011vp Cohort Level #5 1.0 x 1012vp Cohort Level #6 5.0x1012vp One dose only followed by a radical prostatectomy 4 weeks later. | Genetic | – |
Primary outcome
Assessment of safety/toxicity
Time frame: After treatment with 3-6 patients per cohort level, the patients will be assessed for the frequency of complications to be assured that they do not exceed those anticipated.
1 secondary outcome
To collect data on the morphologic and cytotoxic changes in the radical prostatectomy specimen
Time frame: Tumor response as measured by cytoreduction is not likely to be the major effect of the treatment.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Feb 2012.
- Background: PubMed 12614561Satoh T, Timme TL, Saika T, Ebara S, Yang G, Wang J, Ren C, Kusaka N, Mouraviev V, Thompson TC. Adenoviral vector-mediated mRTVP-1 gene therapy for prostate cancer. Hum Gene Ther. 2003 Jan 20;14(2):91-101. doi: 10.1089/104303403321070793.
- Background: PubMed 11971968Ren C, Li L, Goltsov AA, Timme TL, Tahir SA, Wang J, Garza L, Chinault AC, Thompson TC. mRTVP-1, a novel p53 target gene with proapoptotic activities. Mol Cell Biol. 2002 May;22(10):3345-57. doi: 10.1128/MCB.22.10.3345-3357.2002.
- Background: PubMed 14871827Ren C, Li L, Yang G, Timme TL, Goltsov A, Ren C, Ji X, Addai J, Luo H, Ittmann MM, Thompson TC. RTVP-1, a tumor suppressor inactivated by methylation in prostate cancer. Cancer Res. 2004 Feb 1;64(3):969-76. doi: 10.1158/0008-5472.can-03-2592.
- Background: PubMed 16485011Naruishi K, Timme TL, Kusaka N, Fujita T, Yang G, Goltsov A, Satoh T, Ji X, Tian W, Abdelfattah E, Men T, Watanabe M, Tabata K, Thompson TC. Adenoviral vector-mediated RTVP-1 gene-modified tumor cell-based vaccine suppresses the development of experimental prostate cancer. Cancer Gene Ther. 2006 Jul;13(7):658-63. doi: 10.1038/sj.cgt.7700919. Epub 2006 Feb 17.
- Background: PubMed 16714093Ren C, Ren CH, Li L, Goltsov AA, Thompson TC. Identification and characterization of RTVP1/GLIPR1-like genes, a novel p53 target gene cluster. Genomics. 2006 Aug;88(2):163-72. doi: 10.1016/j.ygeno.2006.03.021. Epub 2006 May 22.
- Scott Department of Urology Clinical TrialsLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Dov Kadmon, M.D. principal investigator
Baylor College of Medicine
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing RTVP-1 Gene in people with Prostatic Neoplasms, run by Baylor College of Medicine at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 10 Feb 2012. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Assessment of safety/toxicity (time frame: After treatment with 3-6 patients per cohort level, the patients will be assessed for the frequency of complications to be assured that they do not exceed those anticipated.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00403221, which also lists 5 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Feb 2012.