Pharmacological Penile Rehabilitation in the Preservation of Erectile Function Following Bilateral Nerve-Sparing Radical Prostatectomy
| Status: | Active, not recruiting |
|---|---|
| Conditions: | Prostate Cancer, Cancer, Cancer, Erectile Dysfunction |
| Therapuetic Areas: | Nephrology / Urology, Oncology |
| Healthy: | No |
| Age Range: | 18 - Any |
| Updated: | 9/7/2018 |
| Start Date: | August 2009 |
| End Date: | August 2019 |
A Randomized Trial of Pharmacological Penile Rehabilitation in the Preservation of Erectile Function Following Bilateral Nerve-Sparing Radical Prostatectomy
When a bilateral nerve-sparing radical prostatectomy (RP) is performed, recovery of erectile
function (rigid erections) is reported for up to 80% of patients, who are less than 60 years
old. Erectile function recovery is also impacted by patient age, erectile function before
surgery, and the length of time after surgery.
Current evidence from studies suggests that developing erections is important, however, these
studies have been small, and the evidence is not definite. Animal studies suggest that
erection medication (Viagra, Levitra, Cialis) may protect erection tissue, even in the
absence of erections. However, the correct treatment plan is unknown. For example, how often
does a man need to take sildenafil (Viagra®) to protect his erectile function or to maximize
his erectile function recovery? Is only using erection medication enough for erectile
function recovery? Would penile injections, which almost ensure production of an erection, be
better than using sildenafil (Viagra®), or might a combination be even better at helping
recovery of erections? These are types of questions this study might answer.
function (rigid erections) is reported for up to 80% of patients, who are less than 60 years
old. Erectile function recovery is also impacted by patient age, erectile function before
surgery, and the length of time after surgery.
Current evidence from studies suggests that developing erections is important, however, these
studies have been small, and the evidence is not definite. Animal studies suggest that
erection medication (Viagra, Levitra, Cialis) may protect erection tissue, even in the
absence of erections. However, the correct treatment plan is unknown. For example, how often
does a man need to take sildenafil (Viagra®) to protect his erectile function or to maximize
his erectile function recovery? Is only using erection medication enough for erectile
function recovery? Would penile injections, which almost ensure production of an erection, be
better than using sildenafil (Viagra®), or might a combination be even better at helping
recovery of erections? These are types of questions this study might answer.
Inclusion Criteria:
- Male, must be ≥ 18 years of age, with histologically confirmed prostate
adenocarcinoma, that is clinically localized to the prostate gland
- Stable sexual relationship for ≥ 6 months
- Open or laparoscopic bilateral nerve-sparing radical prostatectomy
- Baseline score of ≥ 22 on the International Index of Erectile Function Domain
(Appendix A)
- Able to speak, read and write in the English language
- Calculated creatinine clearance using the 4 variable MDRD equation based on serum
creatinine, age, race, and gender of > 60 cc/min
- Patient is able to walk up two flights of stairs briskly without chest pain
- Patient needs to have their baseline sitting AND standing blood pressure and pulse
done at the time of consent
Exclusion Criteria:
- Preoperative or planned postoperative pelvic radiation therapy
- Preoperative or planned postoperative androgen deprivation
- Presence of Peyronie's disease at baseline
- Presence of a penile prosthesis at baseline
- Resection of one or both nerve bundles at surgery
- Any contraindications to sildenafil:
- Patient is currently using nitrates;
- Presence of retinitis pigmentosa;
- Presence macular degeneration;
- MI or CVA within 3 months;
- Patient is currently using MAOI medications
- Patient is currently using penile self injection medication (Trimix, Bimix, or PGE-1)
- Patient requiring sildenafil for penetration
- Use of sildenafil within 30 days of consent
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