Impotence | Can Hyperbaric Oxygen Improve Erectile Function Following Surgery for Prostate Cancer

Impotence research study

What is the primary objective of this study?

The purpose of this study is to determine if adding hyperbaric oxygen therapy, a therapy that delivers oxygen under slight pressure, to a drug treatment of PDE5I (such as Viagra, Levitra, Cialis)for men following surgery for prostate cancer will result in more men being able to continue to have erections.

Who is eligible to participate?

Inclusion Criteria: - male - age 40-69 - diagnosis of Stage I prostate cancer - bilateral NSRRP as primary treatment - sexual potency prior to surgery Exclusion Criteria: - COPD, CHF, diabetes mellitus - known inability to tolerate PDE5I - confinement anxiety/claustrophobia - planned adjuvant or neo-adjuvant therapy - patients taking alpha blockers or nitrates - patients with retinitis pigmentosa

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?


Prostatic Neoplasms

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.

Drug:Sildenafil therapy plus post-NSRRP HBO2TSildenafil (Viagra) 50 mg - PO QHS for 12 months beginning the first evening they return home from surgical hospital stay PLUS Post-NSRRP hyperbaric oxygen therapy (90 minutes of 100% oxygen at 2.2ATA (equivalent to the pressure exerted at a depth of approximately 40 feet below sea level). There will be 5 or 10 treatments. The full treatment cycle will be completed within 2 weeks.

Drug:Sildenafil therapy plus sham post-NSRRP HBO2TSildenafil (Viagra)50 mg - PO QHS for 12 months beginning the first evening they return home from surgical hospital stay PLUS Post-NSRRP sham hyperbaric oxygen therapy - 90 minutes at 2.2ATA but instead of 100% oxygen, they will receive air administered via the oxygen hoods, as if they were being administered oxygen. Participants in this group will receive 5 or 10 sham treatment sessions. Full treatment cycle will be completed within 2 weeks.

Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.



Study Status

Active, not recruiting

Start Date: July 2009

Completed Date: January 2021

Phase: Phase 4

Type: Interventional


Primary Outcome: Erectile function domain of Internation Index of Erectile Function (IIEF)

Secondary Outcome: clinical or biochemical recurrence of cancer

Study sponsors, principal investigator, and references

Principal Investigator: James Graydon, MD

Lead Sponsor: Hartford Hospital


More information:

Burnett AL. Erectile dysfunction following radical prostatectomy. JAMA. 2005 Jun 1;293(21):2648-53.

Link RE, Su LM, Sullivan W, Bhayani SB, Pavlovich CP. Health related quality of life before and after laparoscopic radical prostatectomy. J Urol. 2005 Jan;173(1):175-9; discussion 179.

Zamboni WA, Brown RE, Roth AC, Mathur A, Stephenson LL. Functional evaluation of peripheral-nerve repair and the effect of hyperbaric oxygen. J Reconstr Microsurg. 1995 Jan;11(1):27-9; discussion 29-30.

Kaufman JM, Graydon RJ. Androgen replacement after curative radical prostatectomy for prostate cancer in hypogonadal men. J Urol. 2004 Sep;172(3):920-2. Review.

Lowentritt BH, Scardino PT, Miles BJ, Orejuela FJ, Schatte EC, Slawin KM, Elliott SP, Kim ED. Sildenafil citrate after radical retropubic prostatectomy. J Urol. 1999 Nov;162(5):1614-7.

Schwartz EJ, Wong P, Graydon RJ. Sildenafil preserves intracorporeal smooth muscle after radical retropubic prostatectomy. J Urol. 2004 Feb;171(2 Pt 1):771-4.

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