Pilot study using gabapentin for tamoxifen-induced hot flashes in women with breast cancer

A Recent Review of the Management of Postmenopausal Symptoms in Breast Cancer Survivors

The treatment strategy for postmenopausal symptoms resulting from estrogen deficiency in breast cancer survivors receiving endocrine therapy should differ from that in normal women. Several nonhormonal pharmacological therapies can be used to treat vasomotor symptoms. Cognitive-behavioral therapy can help alleviate psychophysiological symptoms, including depression and sleep disorders. Topical vaginal estrogen and moisturizers may aid in treating genitourinary symptoms. Additionally, chronic conditions must be individually managed. Prevention of osteoporosis should always be included in the management, and physicians should be alert to possible cardiovascular risk and cognitive function changes.

Management of Early Menopause/Premature Ovarian Insufficiency in Women with or at High Risk of Breast Cancer

The global incidence of breast cancer is increasing, as is the efficacy of treatments. Consequently, increasing survival rates reinforce the importance of survivorship issues, including posttreatment menopausal symptoms, sexual function, and mental health and well-being. Breast cancer patients can experience a range of menopausal symptoms associated with their treatment. Most commonly women may experience vasomotor symptoms, including hot flushes and night sweats. Particularly for women on maintenance tamoxifen therapy, up to 80% will experience hot flushes, with almost one-third of these women reporting severe symptoms. Breast cancer patients may also experience genitourinary symptoms of menopause, which may include vaginal dryness and irritation, dyspareunia, and dysuria. Hormonal therapy has long been established as the most effective treatment for vasomotor symptoms. However, the hormonal nature of breast malignancies renders systemic hormone therapies unsuitable for these patients, posing a unique treatment challenge, which may result in clinicians not feeling confident to manage them. Consequently, this review outlines pharmacological and nonpharmacological options for women with bothersome menopausal symptoms after breast cancer treatment and provides practical, evidence-based guidance for clinicians.

Efficacy and safety of gabapentin and pregabalin in patients with vasomotor symptoms: a systematic review and meta-analysis

OBJECTIVE

Vasomotor symptoms are common among postmenopausal women and patients receiving hormone deprivation therapies, and emerging studies are exploring gabapentin's and pregabalin's effects as nonhormonal treatment options. We aimed to assess the efficacy and safety of these 2 drugs.

DATA SOURCES

Based on a preregistered protocol (Prospective Register of Systematic Reviews -CRD42019133650), we searched 10 databases (PubMed, Embase, Web of Science, PsycINFO, Cochrane Central Register of Controlled Trials, ClinicalTrials.gov, Chinese Biological Medical Literature, Chinese National Knowledge Infrastructure, Chinese Journals Full-text Database [VIP], and Wanfang) as well as the World Health Organization international clinical trials registry platform and reference lists of related literatures.

STUDY ELIGIBILITY CRITERIA

Randomized controlled trials and randomized crossover studies exploring gabapentin and pregabalin among women patients with vasomotor symptoms were included.

STUDY APPRAISAL AND SYNTHESIS METHODS

The Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement was followed. Two reviewers independently selected studies, assessed bias, and extracted data. Mean difference and standardized mean difference with 95% confidence intervals were assessed by random-effects models. Heterogeneities were assessed by I² statistics, and the quality of evidence was evaluated by the Grading of Recommendations Assessment, Development and Evaluation approach.

RESULTS

Nineteen randomized controlled trials and 2 randomized crossover trials reporting results from 3519 participants were included. Gabapentin could reduce hot flash frequency (mean difference, -1.62, 95% confidence interval, -1.98 to -1.26 after 4 weeks; mean difference, -2.77, 95% confidence interval, -4.29 to -1.24 after 12 weeks) and composite score (standardized mean difference, -0.47, 95% confidence interval, -0.71 to -0.23 after 4 weeks; standardized mean difference, -0.77, 95% confidence interval, -1.15 to -0.40 after 12 weeks) compared with placebo. Both menopausal participants and patients with breast cancer benefited from treatment. Higher risks of dizziness and somnolence were found in the gabapentin group than in the control group (risk ratio, 4.45, 95% confidence interval, 2.50-7.94; risk ratio, 3.29, 95% confidence interval, 1.97-5.48, respectively). Estrogen was more effective in reducing hot flash frequency than gabapentin. No statistically significant difference in reduction of hot flash severity score was found between gabapentin and antidepressants. The trials comparing gabapentin or pregabalin with the other interventions were too limited to make a conclusion.

CONCLUSION

Favorable effects of gabapentin in relieving vasomotor symptoms were observed, compared with controls, but were less effective than those of estrogen. Evidence supporting the therapeutic effect of pregabalin is still lacking.

Venlafaxine in management of hot flashes in women with breast cancer: a systematic review and meta-analysis

Toxicity due to treatment causes a negative impact on quality of life in breast cancer survivors. Hot flash symptoms, described as intense sensations of heat, sweating and flushing occur in more than 50 % of breast cancer patients taking tamoxifen. We hypothesized that venlafaxine, a selective-norepinephrine reuptake inhibitor drug, was effective for reducing patient-reported hot flash scores among women treated for breast cancer compared to other non-hormonal treatments. We searched Medline, Scopus, and Cochrane Central Register of Controlled Trials from inception till May 2015 for venlafaxine (75 mg once daily or greater) with non-hormonal comparators for the treatment of hot flashes in female breast cancer patients. The primary outcome was hot flash score (derived from patient-reported hot flash severity and frequency) in randomized controlled trials. Standardized mean differences (SMD) were calculated for each study due to variation in the outcome measures. Heterogeneity was determined using I (2) statistics, and publication bias was assessed using a contour funnel plot and Egger's tests. Pooled analyses demonstrated that venlafaxine significantly reduced hot flash scores compared to the trial comparators (overall SMD 2.06; 95% confidence interval (CI) [0.40, 3.72]). There was significant heterogeneity among these studies (I (2) = 98.7%, P < 0.001). Asymmetry in the contour funnel plot suggests the presence of publication bias and a trend towards small study effects (Egger's test, P = 0.096). Venlafaxine is efficacious in managing hot flashes among women with breast cancer. This review highlights methodological issues that arise from eligible trials and recommends a collaborative approach in survivorship studies.

A systematic review of non-hormonal treatments of vasomotor symptoms in climacteric and cancer patients

The cardinal climacteric symptoms of hot flushes and night sweats affect 24-93% of all women during the physiological transition from reproductive to post-reproductive life. Though efficacious, hormonal therapy and partial oestrogenic compounds are linked to a significant increase in breast cancer. Non-hormonal treatments are thus greatly appreciated.

This systematic review of published hormonal and non-hormonal treatments for climacteric, and breast and prostate cancer-associated hot flushes, examines clinical efficacy and therapy-related cancer risk modulation.

A PubMed search included literature up to June 19, 2014 without limits for initial dates or language, with the search terms, (hot flush* OR hot flash*) AND (clinical trial* OR clinical stud*) AND (randomi* OR observational) NOT review). Retrieved references identified further papers. The focus was on hot flushes; other symptoms (night sweats, irritability, etc.) were not specifically screened. Included were some 610 clinical studies where a measured effect of the intervention, intensity and severity were documented, and where patients received treatment of pharmaceutical quality. Only 147 of these references described studies with alternative non-hormonal treatments in post-menopausal women and in breast and prostate cancer survivors; these results are presented in Additional file 1.

The most effective hot flush treatment is oestrogenic hormones, or a combination of oestrogen and progestins, though benefits are partially outweighed by a significantly increased risk for breast cancer development.

This review illustrates that certain non-hormonal treatments, including selective serotonin reuptake inhibitors, gabapentin/pregabalin, and Cimicifuga racemosa extracts, show a positive risk-benefit ratio.

Key points

Several non-hormonal alternatives to hormonal therapy have been established and registered for the treatment of vasomotor climacteric symptoms in peri- and post-menopausal women.

There are indications that non-hormonal treatments are useful alternatives in patients with a history of breast and prostate cancer. However, confirmation by larger clinical trials is required.

Randomised controlled trial comparing hypnotherapy versus gabapentin for the treatment of hot flashes in breast cancer survivors: a pilot study

OBJECTIVES

To compare the efficacy of hypnotherapy versus gabapentin for the treatment of hot flashes in breast cancer survivors, and to evaluate the feasibility of conducting a clinical trial comparing a drug with a complementary or alternative method (CAM).

DESIGN

Prospective randomised trial.

SETTING

Breast health centre of a tertiary care centre.

PARTICIPANTS

15 women with a personal history of breast cancer or an increased risk of breast cancer who reported at least one daily hot flash.

INTERVENTIONS

Gabapentin 900 mg daily in three divided doses (control) compared with standardised hypnotherapy. Participation lasted 8 weeks.

OUTCOME MEASURES

The primary endpoints were the number of daily hot flashes and hot flash severity score (HFSS). The secondary endpoint was the Hot Flash Related Daily Interference Scale (HFRDIS).

RESULTS

27 women were randomised and 15 (56%) were considered evaluable for the primary endpoint (n=8 gabapentin, n=7 hypnotherapy). The median number of daily hot flashes at enrolment was 4.5 in the gabapentin arm and 5 in the hypnotherapy arm. HFSS scores were 7.5 in the gabapentin arm and 10 in the hypnotherapy arm. After 8 weeks, the median number of daily hot flashes was reduced by 33.3% in the gabapentin arm and by 80% in the hypnotherapy arm. The median HFSS was reduced by 33.3% in the gabapentin arm and by 85% in the hypnotherapy arm. HFRDIS scores improved by 51.6% in the gabapentin group and by 55.2% in the hypnotherapy group. There were no statistically significant differences between groups.

CONCLUSIONS

Hypnotherapy and gabapentin demonstrate efficacy in improving hot flashes. A definitive trial evaluating traditional interventions against CAM methods is feasible, but not without challenges. Further studies aimed at defining evidence-based recommendations for CAM are necessary.

TRIAL REGISTRATION

clinicaltrials.gov (NCT00711529).

The effect of gabapentin on intensity and duration of hot flashes in postmenopausal women: a randomized controlled trial

Background:

Menopause is the stage of time in which the menstruation stops following the loss of ovarian activity. The purpose of this study was to find out the effectiveness of gabapentin on hot flashes in postmenopausal women.

Materials and Methods:

A randomized controlled trial from Feb 2010 to 2011 was conducted. Sixty postmenopausal women who were referred to obstetrics and gynecology ward of two educational hospitals were recruited and divided into two groups (intervention and control). Intervention group received 300 mg gabapentin three times a day for three months, while control group received placebo. The Intensity and duration of hot flashes in women scored and recorded using visual analog scale. Independent, Paired t-test and chi-square test were used for analyzing data.

Results:

Intensity of hot flashes in the beginning of research in the intervention group was significantly different with the first, second and third follow-up visit (P<0.05). Also at the end of intervention a significant difference between intervention and control groups were observed regarding the intensity, frequency and duration of hot flashes (P<0.05 and P=0.01 respectively).

Conclusion:

According to the findings of this study; it appears that the use of gabapentin could decrease the intensity, duration and frequency of hot flashes in postmenopausal women. For postmenopausal women who hormone therapy is contraindicated, gabapentine could be an acceptable alternative.

How are Interactions Taken into Account in Studies on Conventional and Complementary Therapies for Breast Cancer Patients with Menopausal Complaints?

Introduction: Postmenopausal symptoms in breast cancer patients undergoing antihormone treatment lead to high drop-out rates from the therapy. From the therapeutic point of view, methods of both conventional and complementary medicine are concerned. Interactions are being discussed in cases of natural substances. However, they are also relevant for conventional medical substances. The aim of this analysis is to answer the question as to what extent potential interactions are taken into account in clinical studies and reviews on supportive therapies. Materials and Methods: Clinical studies and reviews were identified by means of a systematic search and analysed with regard to the consideration of potential interactions. Results: Altogether 46 clinical studies and one Cochrane review were found. Among the 35 studies on conventional drug therapies, 5 (14 %) took possible interactions into account. Among the 17 studies on complementary medicine, there were 2 (11.7 %) such publications. The Cochrane review did not mention interactions. Discussion: For future studies in which interactions cannot be excluded, a strategy to control for their clinically relevant consequences should be developed. The present authors suggest that the use of survival and recurrence data as secondary endpoints, also for studies on purely supportive therapies, is a reasonable approach. The resulting considerations for study routines are listed thematically.

Use of gabapentin for the management of natural or surgical menopausal hot flashes

OBJECTIVE

To review the literature examining the use of gabapentin for treatment of hot flashes during natural or surgically induced menopause.

DATA SOURCES

A literature search was conducted via PubMed, MEDLINE, and International Pharmaceutical Abstracts (1948-November 2010) using the search terms gabapentin, hot flashes, and menopause. Literature was limited to English-language, human studies. Additional material was identified by reviewing reference citations of the articles retrieved.

STUDY SELECTION AND DATA EXTRACTION

Studies with data describing gabapentin for hot flash management during natural or surgically induced menopause were included. Any studies including women with a history of breast cancer were excluded. Four studies met the inclusion criteria.

DATA SYNTHESIS

Gabapentin significantly decreased hot flash frequency and hot flash composite scores by 45-71% from baseline in the 4 trials included in this review. In 2 of the trials, gabapentin was comparable to hormone replacement therapy (71% vs 72%, respectively, p=0.63) in decreasing hot flash composite scores at the end of 12 weeks and in decreasing hot flash frequency at the end of 8 weeks (58.9% vs 70.1%, p>0.05). In all trials, the most common adverse effects with gabapentin were somnolence/drowsiness, unsteadiness, and dizziness. These adverse effects were most pronounced during the first 1-2 weeks of therapy, but resolved and were similar to those reported with placebo by week 4. These trials were short (<12 weeks) and had small sample sizes; however, their results appear to show that gabapentin is safe and effective for short-term treatment of hot flashes in women who have entered menopause either naturally or surgically.

CONCLUSIONS

Gabapentin 600-2400 mg/day in divided doses may be a viable option for treating hot flashes in menopausal women who do not want to use hormone replacement therapy.

Gabapentin vs. low-dose transdermal estradiol for treating post-menopausal women with moderate to very severe hot flushes

BACKGROUND

Gabapentin (GPT), a widely used drug in neurology, has been proposed as a non-hormonal option for the management of hot flushes in menopausal women with contraindications for estrogen therapy.

OBJECTIVE

To compare GPT versus low-dose transdermal estradiol (E(2)) for treating post-menopausal women with moderate to very severe hot flushes.

METHODS

A total of 45 post-menopausal women with moderate to very severe hot flushes were prospectively and single-blinded randomised to receive oral GPT 600 mg/night or transdermal 25 microg/day E(2) per week. Hot flush intensity and frequency were assessed with the Menopause Rating Scale and a numeric scale respectively at baseline and at 1, 4 and 8 weeks. Side effects were also assessed.

RESULTS

Hot flush intensity and frequency significantly decreased for both groups at 1, 4 and 8 weeks of treatment as compared to baseline; however, this decrease was statistically more evident for the E(2) group. Although the percentage of hot flush intensity and frequency reduction at the end of the treatment was higher for E2, this was not statistically significant (68.2% vs. 60.6% for intensity and 70.1% vs. 58.9% for frequency, respectively, p > 0.05, NS). Encountered side effects included: drowsiness, dizziness, fatigue (GPT group) and mastodynia, vaginal spotting and a local allergic reaction (E(2) group). Compliance to treatment was 95.6% (GPT group) as compared to 90.9% for the E(2) group.

CONCLUSION

Despite statistical significant differences, from a clinical point of view oral GPT 600 mg was as effective as low-dose transdermal E(2) in controlling moderate to severe hot flushes in post-menopausal women, and should be recommended as an alternative option in those with contraindications to estrogen therapy. More research is warranted in this regard.

A phase III randomized, double-blind, placebo-controlled trial of gabapentin in the management of hot flashes in men (N00CB)

INTRODUCTION

Hot flashes represent a significant problem in men undergoing androgen deprivation therapy.

MATERIALS AND METHODS

Via a prospective, double-blind, placebo-controlled clinical trial, men with hot flashes, on a stable androgen deprivation therapy program for prostate cancer, received a placebo or gabapentin at target doses of 300, 600, or 900 mg/day. Hot flash frequencies and severities were recorded daily during a baseline week and for 4 weeks while the patients took the study medication.

RESULTS

In the 214 eligible patients who began the study drug on this trial, comparing the fourth treatment week to the baseline week, mean hot flash scores decreased in the placebo group by 4.1 units and in the three increasing dose gabapentin groups by, 3.2, 4.6, and 7.0 units. Comparing the three combined gabapentin arms to the placebo arm did not result in significant hot flash differences. Wilcoxon rank-sum P values for change in hot flash scores and frequencies after 4 weeks of treatment were 0.10 and 0.02, comparing the highest dose gabapentin arm to the placebo arm, respectively. The gabapentin was well tolerated in this trial.

CONCLUSION

These results support that gabapentin decreases hot flashes, to a moderate degree, in men with androgen ablation-related vasomotor dysfunction.

Practical clinical guidelines for assessing and managing menopausal symptoms after breast cancer

BACKGROUND

The purpose of this study was to provide practical, evidence-based guidelines for evaluating and treating common menopausal symptoms following breast cancer.

METHODS

Literature review of the causes, assessment and management of menopausal symptoms in breast cancer patients.

RESULTS

A number of nonhormonal treatments are effective in treating hot flashes. Whether pharmacological treatment is given will depend on the severity of symptoms and on patient wishes. For severe and frequent hot flashes, the best data support the use of venlafaxine, paroxetine and gabapentin in women with breast cancer. Side-effects are relatively common with all these agents. For vaginal dryness, topical estrogen treatment is the most effective but the safety of estrogens following breast cancer is not established. There are limited data on effective treatments for sexual dysfunction during menopause.

CONCLUSION

Menopausal symptoms after breast cancer should be evaluated and managed as warranted using a systematic approach and may benefit from multidisciplinary input.

Minimal decrease in hot flashes desired by postmenopausal women in family practice

OBJECTIVE

To determine the minimal important difference in the frequency and severity of hot flashes that postmenopausal women desire from a nonhormonal agent.

DESIGN

Women recorded their number of hot flashes daily, along with their degree of severity, using a diary for 1 week and completed the Menopause-Specific Quality of Life Questionnaire. Women were asked to report the percentage reduction in hot flashes that they would find clinically important. Distribution-based estimates were used to estimate the minimal important difference.

RESULTS

Approximately 69% of the postmenopausal women who reported their hot flashes as moderate to severe responded that they wanted a nonhormonal agent that provided at least a 50% mean reduction in the frequency of hot flashes (95% CI, 32% to 66%). Median hot flash reduction for all respondents was 50%.

CONCLUSIONS

The minimal clinically important difference in hot flashes is approximately 50%. This estimate can provide the basis to calculate sample size in clinical trials of anti-hot flash agents and in selecting possible candidates for investigation.

Vasomotor symptoms in menopause: physiologic condition and central nervous system approaches to treatment

OBJECTIVE

The decline in concentrations of gonadal hormones during menopause gives rise to a range of physiologic and psychologic changes that may impact a woman's health and quality of life significantly. Most notable among these are vasomotor symptoms (hot flashes and night sweats) and mood and sleep disturbances.

STUDY DESIGN

This article reviews the physiologic condition underlying menopausal vasomotor symptoms and centrally active, nonhormonal therapies that have demonstrated efficacy for their treatment.

RESULTS

Despite the emergence of a range of nonhormonal treatments for vasomotor symptoms, a need still exists for safe and effective therapeutic options that directly target the underlying thermoregulatory mechanisms for women who want treatment but prefer to avoid hormone therapy or for whom hormone therapy is contraindicated.

CONCLUSION

The availability of centrally active therapies for menopausal vasomotor symptoms with risks and benefits clearly defined by results from well-designed clinical trials has the potential to allay safety concerns that are associated with the treatment of these common symptoms.

Symptoms and Treatment in Cancer Therapy‐Induced Early Menopause

Young women with breast cancer often experience early menopause as a result of the therapy for their malignant disease. The sudden occurrence of menopause resulting from chemotherapy, oophorectomy, radiation, or gonadal dysgenesis frequently results in hot flashes that begin at a younger age and may occur at a greater frequency and intensity than hot flashes associated with natural menopause. Hormone therapy relieves symptoms effectively in 80%-90% of women who initiate treatment. This therapy, however, is generally contraindicated in estrogen-dependent cancers, such as breast cancer, because of the potentially increased risk for recurrence. Many agents have been investigated as potential means for alleviating hot flashes in survivors of breast cancer, such as progestagens, clonidine, gabapentin, and anti-depressants. Several complementary and alternative medicines frequently used by patients have also been studied. These include black cohosh, phytoestrogens, homeopathy, vitamin E, acupuncture, and behavior strategies. To support the use of one of more of these nonpharmacological or pharmacological options in the treatment of hot flashes in breast cancer patients, more evidence from well-controlled clinical trials is needed. In particular, soundly based scientific research with complementary and alternative medicine therapies is lacking. Pharmacological treatments appear to be more beneficial than nonpharmacological treatments. This article reviews the current literature to assess the epidemiology and diagnosis of hot flashes and the nonpharmacological and pharmacological options for the treatment of hot flashes, in breast cancer patients in particular. When specific treatment options have not been evaluated in breast cancer patients specifically, published data on the management of hot flashes with this modality in healthy postmenopausal women are described.

Hot flushes in breast cancer patients

OBJECTIVES

A literature search was conducted to gather information concerning the pathophysiologic mechanisms leading to hot flushes, their prevalence and severity in breast cancer patients, their influence on quality of life, and the best therapeutic option.

METHODS

Relevant studies in English were selected from Medline.

RESULTS AND CONCLUSION

Pathophysiologic mechanisms leading to hot flushes are poorly understood. Estrogen withdrawal is considered to have a central role. Also, serotonin and norepinephrine seem to be involved in hot flush induction. Menopause induced by chemotherapy or ovarian ablation, is accompanied by an abrupt decrease in estrogen level, causing vasomotor symptoms. Hot flushes are also a side effect of tamoxifen and aromatase inhibitors. Quality of life in breast cancer patients may be negatively influenced by hot flushes, and therefore, adequate treatment is important. Currently, of the several non-hormonal options, the selective serotonin-reuptake inhibitor (SSRI) venlafaxine is the most effective in breast cancer patients. However, studies on interaction between SSRIs and tamoxifen may influence future recommendations.

Gabapentin for hot flashes in 420 women with breast cancer: a randomised double-blind placebo-controlled trial

BACKGROUND

Most women receiving systemic therapy for breast cancer experience hot flashes. We undertook a randomised, double-blind, placebo-controlled, multi-institutional trial to assess the efficacy of gabapentin in controlling hot flashes in women with breast cancer.

METHODS

420 women with breast cancer who were having two or more hot flashes per day were randomly assigned placebo, gabapentin 300 mg/day, or gabapentin 900 mg/day by mouth in three divided doses for 8 weeks. Each patient kept a 1-week, self-report diary on the frequency, severity, and duration of hot flashes before the start of the study and during weeks 4 and 8 of treatment. Analyses were by intention to treat.

FINDINGS

Evaluable data were available on 371 participants at 4 weeks (119 placebo, 123 gabapentin 300 mg, and 129 gabapentin 900 mg) and 347 at 8 weeks (113 placebo, 114 gabapentin 300 mg, and 120 gabapentin 900 mg). The percentage decreases in hot-flash severity score between baseline and weeks 4 and 8, respectively were: 21% (95% CI 12 to 30) and 15% (1 to 29) in the placebo group; 33% (23 to 43) and 31% (16 to 46) in the group assigned gabapentin 300 mg; and 49% (42 to 56) and 46% (34 to 58) in the group assigned gabapentin 900 mg. The differences between the groups were significant (p=0.0001 at 4 weeks and p=0.007 at 8 weeks by ANCOVA for overall treatment effect, adjusted for baseline values); only the higher dose of gabapentin was associated with significant decreases in hot-flash frequency and severity.

INTERPRETATION

Gabapentin is effective in the control of hot flashes at a dose of 900 mg/day, but not at a dose of 300 mg/day. This drug should be considered for treatment of hot flashes in women with breast cancer.

State of the science: hot flashes and cancer. Part 2: management and future directions

PURPOSE/OBJECTIVES

To critically evaluate and synthesize intervention research related to hot flashes in the context of cancer and to identify implications and future directions for policy, research, and practice.

DATA SOURCES

Published, peer-reviewed articles and textbooks; editorials; and computerized databases.

DATA SYNTHESIS

Although a variety of pharmacologic and nonpharmacologic treatments are available, they may not be appropriate or effective for all individuals.

CONCLUSIONS

The large and diverse evidence base and current national attention on hot flash treatment highlight the importance of the symptom to healthcare professionals, including oncology nurses.

IMPLICATIONS FOR NURSING

Using existing research to understand, assess, and manage hot flashes in the context of cancer can prevent patient discomfort and improve the delivery of evidence-based care.

Menopausal Symptom Management and Prevention Counseling after the Women's Health Initiative among Women Seen in an Internal Medicine Practice

OBJECTIVE

To describe the management of menopausal symptoms and the prevalence of prevention counseling among women who stopped hormone therapy (HT) after publication of the initial findings of the Women's Health Initiative.

METHODS

Telephone survey between July and September 2003 of 142 women 50 years and older, randomly selected from a large academic primary care practice, who stopped taking HT after the WHI publication, July 9, 2002 (66% response rate).

RESULTS

Among 142 women, the median age was 60 years, 63% were white, 52% had at least a college degree, and 60% were taking estrogen and progestin as of July 9, 2002. The majority (82%, n = 117) who stopped HT suffered some menopausal symptom: 25 restarted HT, 13 received another prescription medication, and 56 tried at least one complementary and alternative medicine. Women most commonly used soy (n = 40) or black cohosh (n = 25) for their symptoms, although less than one third of women found either of these treatments effective. Only 49% (57 of 117) of women with symptoms visited a doctor for their symptom. Few women reported receiving counseling about prevention topics after the WHI, such as risk of osteoporosis (34%), risk of heart disease (26%), diet (41%), and exercise (45%).

CONCLUSIONS

Most women who stopped HT after the WHI experienced some menopausal symptoms. Few women found commonly used alternative medicines effective, and few received other prescription medications. Counseling about osteoporosis and heart disease risk was infrequent after the WHI. Future studies should focus on finding safe and effective therapies for menopausal symptoms.

A practical guide to the management of menopausal symptoms in breast cancer patients

Breast cancer is the most frequently diagnosed cancer in Canadian women. As a result of increased screening and improved treatment, more women are becoming long-term breast cancer survivors. However, due to either their treatment or prolonged survival, many of these women now have to face the consequences of premature menopause and prolonged estrogen deprivation. Hormone replacement therapy/estrogen replacement therapy (HRT/ERT) has, in the past, been recommended to healthy women at menopause not only for relief of short-term menopausal changes, particularly hot flashes, but also for its benefits on bone density, fracture reduction, and genitourinary symptoms. Recent studies have demonstrated that not only is HRT associated with an increased risk of developing breast cancer, but it also has been shown to increase the risk of recurrence in those with a breast cancer history. Until the safety of HRT/ERT in breast cancer patients can be more fully clarified, it would be wise to develop alternative strategies for the management of menopausal symptoms in these patients. This paper will discuss nonestrogen-based therapies for hot flashes, osteoporosis, and genitourinary symptoms, with emphasis on efficacy and safety in breast cancer survivors.