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LESLIE R. SCHOVER<br />

tinuous ADT in prolonging survival in men who have a rising<br />

PSA after defınitive treatment for local disease, while allowing<br />

somewhat better quality of life. 22 In men with metastatic<br />

disease, mean survival was slightly longer (5.8 vs. 5.1 years)<br />

when continuous ADT was used, but the clinical signifıcance<br />

of the results is not very convincing. 23<br />

Men often remain profoundly hypogonadal for months after<br />

ADT is withdrawn, especially if they are older or have had<br />

several cycles on and off ADT. 22 Not surprisingly, recovery of<br />

quality of life, including sexual function, is correlated with<br />

serum testosterone levels. Typically, about one-half of men<br />

recover better erections when off ADT, but only a minority<br />

remains sexually active after several months. The rate of sexual<br />

inactivity may be even greater for men who have metastatic disease.<br />

24 The structural changes in the erectile tissue of the penis<br />

related to ADT or androgen-blocking drugs may contribute to<br />

men’s discouragement about sexual function. Continuing impairment<br />

of sexual desire and arousability related to central nervous<br />

system effects undoubtedly also play a role. 25<br />

One of the largest prospective trials to measure sexual function<br />

during intermittent ADT was a phase II cohort study of<br />

250 men treated with a combination of flutamide and leuprolide<br />

for 9 months, with subsequent times off treatment over 2<br />

years if the PSA was 4 ng/mL or less. 26 About one-half had<br />

biochemic recurrence after defınitive localized treatment;<br />

others had locally advanced or metastatic disease at diagnosis.<br />

As expected, sexual function already was impaired at<br />

baseline, with 57% reporting erection problems, 47% low desire,<br />

and 46% sexual inactivity. All self-report measures deteriorated<br />

over the 9 months of ADT and only 13% remained<br />

sexually active. During their time off ADT, 52% of men sexually<br />

active at baseline resumed sex and all reported improved<br />

erectile function. However, 9 to 12 months off ADT<br />

was necessary to reach optimal recovery. Although desire for<br />

sex and feeling masculine improved during time off ADT,<br />

these outcomes remained poorer than at baseline. Approximately<br />

15% of men who continued having sex during ADT<br />

reported adequate erections. The authors did not report factors<br />

that may identify the subgroup of men who maintain<br />

fairly normal sex lives during ADT, but the author’s clinical<br />

experience suggests that younger age, a strong desire for sex<br />

at prostate cancer diagnosis, and being in a relationship with<br />

good sexual communication are all good prognostic factors.<br />

INTERVENTIONS TO MAINTAIN SEXUAL<br />

SATISFACTION IN MEN ON ANDROGEN<br />

DEPRIVATION THERAPY<br />

As the anecdote at the beginning of this article suggests, an<br />

important factor in helping men maintain sexual activity and<br />

satisfaction during ADT is to provide positive, although realistic,<br />

expectations. Not all men or their partners have a<br />

strong desire to stay sexually active, especially if ADT that<br />

began after defınitive therapy for localized disease already<br />

impaired erections.<br />

For those who want a sex life, I often cite a classic study<br />

demonstrating that hypogonadal men have more trouble<br />

than men with normal hormone levels in getting subjectively<br />

aroused or achieving erections if they are asked to generate<br />

their own sexual fantasy. 27 However, when shown an erotic<br />

fılm, their arousal and erections are similar to those of eugonadal<br />

men. Thus, it is likely to take both extra physical caressing<br />

and mental sexual stimulation for a man to experience<br />

arousal or to get the best possible erection when on ADT. I<br />

counsel men and their partners to put a priority on time for<br />

intimate touching, rather than waiting for spontaneous desire.<br />

A sensate focus framework helps partners regard sexual<br />

caressing as a time to share intimacy rather than an occasion<br />

to demonstrate sexual performance. 28<br />

Men who begin with good erectile function may benefıt<br />

from penile rehabilitation using medical treatments for erectile<br />

dysfunction, such as oral medication, vacuum erection<br />

devices, or penile injections several times a week to ensure a<br />

regular supply of oxygenated blood to the erectile tissue. 29<br />

The utility of penile rehabilitation during ADT has not been<br />

studied yet in a randomized trial.<br />

Some men are not able to maintain fırm erections even if<br />

they want to be sexually active, and can get subjectively<br />

aroused, because of damage to the smooth muscle and venous<br />

occlusion mechanism in the erectile tissue. This erection<br />

problem is unlikely to be treated successfully with oral,<br />

phosphodiesterase-5 inhibitors, a vacuum erection device, or<br />

penile injection therapy. It may require surgery to implant an<br />

inflatable penile prosthesis. 30 Motivation to have surgery is<br />

often related to the importance sexuality is in a man’s life and<br />

his current relationships status. Men who have sex with men<br />

may need a more rigid erection to achieve anal penetration,<br />

which also could make a penile prosthesis attractive. 31 Some<br />

men switch from preferring to be the partner who penetrates<br />

anally to being the anal receptive partner as a way to get sexual<br />

pleasure despite erectile dysfunction.<br />

With or without fırm and reliable erections, men can still<br />

experience the sensation of orgasm during or after ADT, but<br />

it may require more intense sexual stimulation over a longer<br />

period of time than before. For partners, the effort to help a<br />

man reach orgasm can turn sex from a pleasurable sharing of<br />

intimacy into a work session. I often encourage couples to<br />

incorporate vibrator stimulation into their sexual caressing.<br />

A vibrator provides a different and intense type of sexual<br />

pleasure with less effort than prolonged manual or oral stimulation<br />

of the penis. For men who enjoy vaginal or anal penetration,<br />

vibrators that mimic the sensation are available.<br />

Other options include the Viberect, a medical-grade vibrator<br />

that can vary the frequency and intensity of stimulation, or<br />

high-tech vibrators that provide a range of types of physical sensations.<br />

If partners are open to watching erotic videos during<br />

sex, the extra mental stimulation may help a man to get as<br />

aroused as possible. If the couple fınds that the use of erotic fılms<br />

has a negative effect on their intimacy, the man can watch a<br />

video just before starting sexual activity with a partner.<br />

Since the prostate and seminal vesicles produce the liquid<br />

components of semen, men who have had radical prostatectomy<br />

have dry orgasms that include pleasurable sensations<br />

and muscle contractions, but without semen coming out of<br />

e564<br />

2015 ASCO EDUCATIONAL BOOK | asco.org/edbook

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