Study Results
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Basic Information
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RECRUITING
NA
12 participants
INTERVENTIONAL
2018-11-07
2027-12-20
Brief Summary
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Our hypothesis is that treatments can be safely delivered in one single fraction using SBRT provided the separation between the prostate and rectum is increased using the hydrogel
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Detailed Description
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The next visit (approximately after 7 days after the insertion of the gel), a CT scan and MRI-scan will be done. Prior to the scans, a urinary catheter will be inserted in the bladder through the penis, and removed once the scans are done. Using these images, the doctor and the team involved will perform an individualized planning study to establish the safest way the radiation will enter your body. When the treatment plan is ready, patient is called to receive the single treatment.
A urinary catheter again will be inserted in the bladder and the patient will be directed to the room where your treatment will be delivered. The treatment should last approximately 30 minutes. After the treatment, the urinary catheter will be removed.
Conditions
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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Single Fraction SBRT in the treatment of prostate cancer
Prior to treatment, a hydrogel spacer will be inserted between the recutm and prostate. A urinary catheter will also be inserted in the bladder. A single dose of 19Gy will be delivered with an IMRT technique. The treatment should last approximately 30 minutes. After the treatment, the urinary catheter will be removed.
Stereotactic Body Radiation Therapy (SBRT)
Shorter radiation therapy means that a higher dose will be offered. To limit side effects of exposure to a high dose, a medical device protecting the rectum will be used. The medical device to be used is called SpaceOAR hydrogel (device). The SpaceOAR hydrogel creates space between the rectum and the prostate, making it much less likely that the rectum is exposed to radiation. It is injected into place prior to the start of radiation treatment using a needle. Patients may be awake or asleep under local anesthesia for the procedure. SpaceOAR hydrogel is not painful, it remains stable during radiation therapy and then is gradually absorbed by the body over the course of approximately six months, once radiation therapy has been completed.
Interventions
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Stereotactic Body Radiation Therapy (SBRT)
Shorter radiation therapy means that a higher dose will be offered. To limit side effects of exposure to a high dose, a medical device protecting the rectum will be used. The medical device to be used is called SpaceOAR hydrogel (device). The SpaceOAR hydrogel creates space between the rectum and the prostate, making it much less likely that the rectum is exposed to radiation. It is injected into place prior to the start of radiation treatment using a needle. Patients may be awake or asleep under local anesthesia for the procedure. SpaceOAR hydrogel is not painful, it remains stable during radiation therapy and then is gradually absorbed by the body over the course of approximately six months, once radiation therapy has been completed.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
Recent PSA under 15 ng/dL (less than 30 days; must obtained \>90 days from stopping dutasteride or \>30 days from stopping finasteride) OR Gleason 7(4+3) and recent PSA \< 10 (less than 30 days; must obtained \>90 days from stopping dutasteride or \>30 days from stopping finasteride)
International Prostate Symptom Score \<16 Prostate gland volume\< 80cc
Zubrod Performance Status 0-1 within 60 days prior to registration
Age \>: 18
Patient must be able to provide study-specific informed consent prior to study entry.
Exclusion Criteria
Prior or concurrent invasive malignancy (except non-melanomatous skin cancer) or lymphomatous/hematogenous malignancy unless continually disease free for a minimum of 5 years. All patients with in situ carcinoma are eligible for this study (for example, carcinoma in situ of the oral cavity) except patients with carcinoma of the bladder (including in situ bladder cancer or superficial bladder cancer).
Evidence of distant metastases
Regional lymph node involvement
Previous radical surgery (prostatectomy), cryosurgery, or HIFU for prostate cancer Previous pelvic irradiation, prostate brachytherapy, or bilateral orchiectomy Previous hormonal therapy, such as LHRH agonists or antagonists, anti-androgens, estrogens, or surgical castration (orchiectomy)
Use of finasteride within 30 days prior to registration. PSA should not be obtained prior to 30 days after stopping finasteride.
Use of dutasteride within 90 days prior to registration. PSA should not be obtained prior to 90 days after stopping dutasteride.
Previous or concurrent cytotoxic chemotherapy for prostate cancer Severe, active co-morbidity, defined as follows:
Unstable angina and/or congestive heart failure requiring hospitalization within the last 6 months
Transmural myocardial infarction within the last 6 months
Acute bacterial or fungal infection requiring intravenous antibiotics at the time of registration
Chronic obstructive pulmonary disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy at the time of registration
Hepatic insufficiency resulting in clinical jaundice and/or coagulation defects; note, however, that laboratory tests for liver function and coagulation parameters are not required for entry into this protocol. (Patients on Coumadin or other blood thinning agents are eligible for this study.)
Acquired Immune Deficiency Syndrome (AIDS) based upon current CDC definition; note, however, that HIV testing is not required for entry into this protocol. The need to exclude patients with AIDS from this protocol is necessary because the treatments involved in this protocol may be significantly immunosuppressive. Protocol-specific requirements may also exclude immuno-compromised patients.
18 Years
MALE
No
Sponsors
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Boston Scientific Corporation
INDUSTRY
Fabio Cury
OTHER
Responsible Party
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Fabio Cury
Principal Investigator
Principal Investigators
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Fabio Cury, MD
Role: PRINCIPAL_INVESTIGATOR
McGill University Health Centre- Cedars Cancer Centre
Locations
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McGill University Health Centre-Cedars Cancer Centre
Montreal, Quebec, Canada
Countries
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Central Contacts
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Facility Contacts
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References
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Other Identifiers
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2019-4650
Identifier Type: -
Identifier Source: org_study_id
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