Prostate Cancer Clinical Trial
— HYALERECOfficial title:
Phase III Trial Randomized to Evaluate the Interest of Hyaluronic Acid in the Preservation of Sexual Function During Prostate Curietherapies
Prostate cancer is the most common cancer in humans, but low mortality, around 10 / 100,000 patients / year. It differs from other cancers by its high rate of cure, as well as a long term survival. Numerous treatment techniques are available and of comparable effectiveness: as a result it must be given importance to the short and long term side effects of these different treatments. Prostate brachytherapy with permanent implants is thus one of the standard techniques for the treatment of localized prostate cancers of favorable grades (WHO grade 1-2). In comparison with prostatectomy and RTE, brachytherapy allows low rates of long-term urinary toxicities, and comparable rates of erectile function preservation. With regard to erectile dysfunction, their pathophysiology after irradiation is complex and poorly understood, including damage to the erector apparatus, innervation, vascularization, and of course the level of libido. As an example, the radiotherapy team of the Lyon Sud hospital showed that the delivering a the lowest dose of radiation to the pudendal arteries and to the penile bulb during RTE, leads to erectile preservation rates comparable with those from the literature with nearly 85% of patients with erectile function retained at 2 years . They were also able to retrospectively show that a lower dose to the pudendal arteries correlated with better erectile function during brachytherapy. The brachytherapy procedure requires general anesthesia and endorectal ultrasound, which are optimal conditions for injecting hyaluronic acid between the prostate, rectum, and pudendal arteries. This gesture has shown to induce very few morbidity. They want to demonstrate that the injection of hyaluronic acid during prostate brachytherapy will reduce the radiation dose to the pudendal arteries and penile bulb, and thus improve the rate of preservation of erectile function in selected patients. This randomized phase III study comparing dyserection rates after CT performed with (Arm A) and without (Arm B) injection of HA, in a patient population without erectile dysfunction before treatment.
Status | Recruiting |
Enrollment | 162 |
Est. completion date | October 31, 2023 |
Est. primary completion date | October 31, 2023 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years to 80 Years |
Eligibility | Inclusion Criteria: - Patients aged 18 to 80 years old. - Patients over 75 years old must have a G8 score = 14 or oncogeriatric assessment.The geriatrician's expertise will validate the brachytherapy treatment. - Karnofsky performance status = 60% (ECOG performance status 0-2) - Patients diagnosed with histologically proven localized prostate adenocarcinoma - Prostate cancer eligible for brachytherapy according to the following criteria: - at. Low risk prostate cancer: Gleason score <7 and PSA <10 ng / ml AND cT1-cT2a - Intermediate risk prostate cancers with a single adverse factor: Gleason score = 7 (3 + 4) OR PSA 10-15ng / ml OR cT2b-cT2c / ml - less than 50% positive biopsies - Volume of the prostate <60 cc - No middle lobe - IPSS <15/35 - Initial IIEF5 score, no treatment, greater than or equal to 20/25 - Patient able to sign an informed consent form - Patient benefiting from a social insurance system or similar system Exclusion Criteria: - Nodal or distant metastatic evolution - History of abdominal or pelvic irradiation - Anterior treatment for prostate cancer, including hormone therapy with LHRH analogue or GnRH antagonist. - History of prostate resection, not allowing brachytherapy seeds implantation. - Uncontrolled cancer (except basal cell skin cancer) - Current clinical study that may interfere with this study - Patient unable to complete a self-administered questionnaire and understand the ins and outs of the trial - Major patients protected by law - Allergy to hyaluronic acid |
Country | Name | City | State |
---|---|---|---|
France | Centre Jean François Leclerc | Dijon | |
France | Radiothérapie, Hôpital A. Michallon, CHU de Grenoble | Grenoble | |
France | Centre Hospitalier Lyon Sud | Pierre-Bénite cedex |
Lead Sponsor | Collaborator |
---|---|
Hospices Civils de Lyon |
France,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Psychosocial dimensions | the psychosocial dimensions of patients with erectile disfunction will be assessed using the initial EPIC (Expanded Prostate cancer Index composite / Sexual Component Questionnaire | 2 years | |
Other | Response assessment of IPDE5 (Phosphodiesterase 5 inhibitors ) treatement. | Effects Assessment of phosphodiesterase type 5 inhibitors by the EDITS (Erectile Dysfunction Inventory of Treatment Satisfaction) questionnaire 6 months after treatment. | 6 months | |
Other | The incidence of acute gastrointestinal and gastrourinary toxicity | Acute gastrointestinal and gastrointestinal toxicities are evaluated according to the V5 scale of CTCAE, initially at 6 weeks. We will evaluate the grade 2 toxicities, and the number of grade 3 or 4 toxicities in each arm. | 6 months | |
Other | The incidence of late gastrointestinal and gastrourinary toxicity, | Acute and late gastrointestinal and gastrointestinal toxicities are evaluated according to the V5 scale of CTCAE, at two years (late toxicities). We will evaluate the grade 2 toxicities, and the number of grade 3 or 4 toxicities in each arm. | 2 years | |
Other | Evaluation of brachytherapy by CT-MRI fusion Imaging measuring | Quality criteria for brachytherapy will be defined on CT-MRI fusion imaging at 45 days after treatment. | 45 days after brachytherapy | |
Other | Thickness hyaluronique acide injection assessment | The quality of the injection of AH is defined by a thickness of AH = 10 mm measured at the level of the prostatic apex. | 24 hours after surgery | |
Other | Link between hyaluronic acid and pudendal artery stenosis. | The impact of hyaluronic acid injection on the probability of occurrence of pudendal artery stenosis will be assessed by centralized 2-year MRI revisions compared to MRI at day 45 | 2 years after treatment | |
Other | Link between pudendal artheris stenosis occurrence and radiation dose received | The occurrence of pudendal artery stenosis (defined by centralized 2-year MRI rereading) will be correlated with the maximum dose received by these structures (Dnear max = D2% urethra, ie the minimum dose received by 2% of patients). the pudendal artery. | 2 years after surgery | |
Other | Link between pudendal arteries stenosis and erectile disfunction. | probability of occurrence of erectile dysfunction years will be correlated with the possible observation of pudendal artery stenosis at 2 years. | 2 years after treatment | |
Primary | interest of Hyalurocnic injection to protect pudendal arteries during prostate brachytherapy in the preservation of Erectile function at 2years. | The primary endpoints is the comparison between the 2 groups of the proportion of patient with preserved erectile function. The erectile function will be assessed with the variation of IIEF-5 score between pre-treatment evaluation and 2years after treatment evaluation. Erectile function will be considered preserved in the absence of a decrease in the IIEF-5 score by more than 5 points. | 2 years | |
Secondary | Evolution of erectile function. | comparison between the 2 groups of the International Index of Erectile Function (IIEF5) score evolution during the 2 years of follow-up. | 2 years | |
Secondary | The IPDE5 consumption at 2 years | The consumption of IPDE5 at 2 years will be defined by the proportion of patients who have used IPDE5 at least once after the intervention. | 2 years | |
Secondary | Erection satisfaction at 2 years | Erection satisfaction at 2 years will be measured using a numerical scale rated from 0 to 10, 0 being "not at all satisfied" and 10 "completely satisfied | 2 years |
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