HRT in difficult circumstances: are there any absolute contraindications?

Hormone Replacement Therapy Prescription after Premature Surgical Menopause

STUDY OBJECTIVE

To assess hormone replacement therapy (HRT) prescription pattern in patients undergoing premature surgical menopause on the basis of surgical indication.

DESIGN

Retrospective cohort study.

SETTING

Academic tertiary care center.

PATIENTS

Surgically menopausal patients aged ≤45 years who underwent a minimally invasive hysterectomy with salpingo-oophorectomy.

INTERVENTIONS

HRT prescription in the 6-week postoperative period.

MEASUREMENTS AND MAIN RESULTS

A total of 63 patients met inclusion criteria. Of these, 52% (n = 33) were prescribed HRT in the 6-week postoperative period. Indications for surgical menopause included pelvic pain or endometriosis (31.7%), gynecologic malignancy (20.6%), BRCA gene mutation (17.4%), breast cancer (9.5%), Lynch syndrome (4.8%), and other (15.8%). In total, 80% of patients with pelvic pain, 25% with gynecologic malignancies, 45% with BRCA gene mutations, 33.3% with breast cancer, and 66.6% with Lynch syndrome used HRT postoperatively. In patients who used HRT postoperatively, 76% were offered preoperative HRT counseling. This is in contrast with those patients who did not use HRT postoperatively, of whom only 33% were offered HRT counseling (p <.001). Perioperative complications were not predictive of HRT use postoperatively. In patients who did not use HRT postoperatively, 13.3% used alternative nonhormonal therapy.

CONCLUSION

In patients who underwent premature surgical menopause, 52% used HRT postoperatively. Patients with pelvic pain and Lynch syndrome were more likely to use HRT, whereas those with gynecologic or breast malignancies and BRCA gene mutations were less likely to use HRT. Preoperative HRT counseling was associated with postoperative HRT use.

Does Hormone Replacement Therapy Impact the Prognosis in Endometrial Cancer Survivors? A Systematic Review

PURPOSE

The objective of this study was to evaluate the impact of hormone replacement therapy (HRT) on the prognosis in endometrial cancer (EC) survivors.

METHODS

The research was conducted using the following electronic databases: MEDLINE (PubMed), Web of Science, ClinicalTrial.gov, and Cochrane Library. We performed a review of studies published from January 1986 to January 2019. We selected studies that included EC patients submitted to surgery with curative intent and postoperative use of HRT.

RESULT

Seven of 1,332 abstracts considered were eligible: 4 retrospective series, 1 prospective study, 1 randomized controlled trial, and 1 population study. Globally in the observed studies there was not a significant increase in the recurrence rate, measured by the relative risk, in the EC survivors using HRT compared with the controls in tumour stages I and II. The bias was that HRT was prescribed only to low-risk patients, who were young and had a low stage of disease.

CONCLUSION

This systematic review shows that HRT use had no negative effect on prognosis in EC survivors in tumour stages I and II.

Hormone Replacement Therapy: Would it be Possible to Replicate a Functional Ovary?

Background: Throughout history, menopause has been regarded as a transition in a woman’s life. With the increase in life expectancy, women now spend more than a third of their lives in menopause. During these years, women may experience intolerable symptoms both physically and mentally, leading them to seek clinical advice. It is imperative for healthcare providers to improve the quality of life by reducing bothersome menopausal symptoms and preventing disorders such as osteoporosis and atherosclerosis. The current treatment in the form of hormone replacement therapy (HRT) is sometimes inadequate with several limitations and adverse effects. Objective and rationale: The current review aims to discuss the need, efficacy, and limitations of current HRT; the role of other ovarian hormones, and where we stand in comparison with ovary-in situ; and finally, explore towards the preparation of an HRT model by regeneration of ovaries tissues through stem cells which can replicate a functional ovary. Search methods: Four electronic databases (MEDLINE, Embase, Web of Science and CINAHL) were searched from database inception until 26 April 2018, using a combination of relevant controlled vocabulary terms and free-text terms related to ‘menopause’, ‘hormone replacement therapy’, ‘ovary regeneration’, ‘stem cells’ and ‘ovarian transplantation’. Outcomes: We present a synthesis of the existing data on the efficacy and limitations of HRT. HRT is far from adequate in postmenopausal women with symptoms of hormone deprivation as it fails to deliver all hormones secreted by naïve ovarian tissue. Moreover, the pharmacokinetics of synthetic hormones makes them substantially different from natural ones. Not only does the number and type of hormones given in HRT matter, but the route of delivering and their release in circulation are also imperative. The hormones are delivered either orally or topically in a non-physiological uniform manner, which brings along with it several side effects. These identify the need for a hormone delivery system which replicates, integrates and reacts as per the requirement of the female body. Wider implications: The review outlines the strengths and weaknesses of HRT and highlights the potential areas for future research. There is a tremendous potential for research in this field to understand the collective roles of the various ovarian hormones and to devise an auto-regulated hormone delivery system which replicates the normal physiology. Its clinical applications can prove to be transformative for postmenopausal women helping them to lead a healthy and productive life.

Hormone replacement therapy for women previously treated for endometrial cancer

BACKGROUND

Endometrial cancer is the sixth most common cancer in women worldwide and most commonly occurs after the menopause (75%) (globocan.iarc.fr). About 319,000 new cases were diagnosed worldwide in 2012. Endometrial cancer is commonly considered as a potentially 'curable cancer,' as approximately 75% of cases are diagnosed before disease has spread outside the uterus (FIGO (International Federation of Gynecology and Obstetrics) stage I). The overall five-year survival for all stages is about 86%, and, if the cancer is confined to the uterus, the five-year survival rate may increase to 97%. The majority of women diagnosed with endometrial cancer have early-stage disease, leading to a good prognosis after hysterectomy and removal of the ovaries (oophorectomy), with or without radiotherapy. However, women may have early physiological and psychological postmenopausal changes, either pre-existing or as a result of oophorectomy, depending on age and menopausal status at the time of diagnosis. Lack of oestrogen can cause hot flushes, night sweats, genital tract atrophy and longer-term adverse effects, such as osteoporosis and cardiovascular disease. These changes may be temporarily managed by using oestrogens, in the form of hormone replacement therapy (HRT). However, there is a theoretical risk of promoting residual tumour cell growth and increasing cancer recurrence. Therefore, this is a potential survival disadvantage in a woman who has a potentially curable cancer. In premenopausal women with endometrial cancer, treatment induces early menopause and this may adversely affect overall survival. Additionally, most women with early-stage disease will be cured of their cancer, making longer-term quality of life (QoL) issues more pertinent. Following bilateral oophorectomy, premenopausal women may develop significant and debilitating menopausal symptoms, so there is a need for information about the risk and benefits of taking HRT, enabling women to make an informed decision, weighing the advantages and disadvantages of using HRT for their individual circumstances.

OBJECTIVES

To assess the risks and benefits of HRT (oestrogen alone or oestrogen with progestogen) for women previously treated for endometrial cancer.

SEARCH METHODS

We searched the Cochrane Register of Controlled Trials (CENTRAL 2017, Issue 5), MEDLINE (1946 to April, week 4, 2017) and Embase (1980 to 2017, week 18). We also searched registers of clinical trials, abstracts of scientific meetings and reference lists of review articles.

SELECTION CRITERIA

We included randomised controlled trials (RCTs), in all languages, that examined the efficacy of symptom relief and the safety of using HRT in women treated for endometrial cancer, where safety in this situation was considered as not increasing the risk of recurrence of endometrial cancer above that of women not taking HRT.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed whether potentially relevant studies met the inclusion criteria. We used standard methodological procedures expected by Cochrane.

MAIN RESULTS

We identified 2190 unique records, evaluated the full text of seven studies and included one study with 1236 participants. This study reported tumour recurrence in 2.3% of women in the oestrogen arm versus 1.9% of women receiving placebo (risk ratio (RR) 1.17, 95% confidence interval (CI) 0.54 to 2.50; very low-certainty evidence). The study reported one woman in the HRT arm (0.16%) and three women in the placebo arm (0.49%) who developed breast cancer (new malignancy) during follow-up (RR 0.80, 95% CI 0.32 to 2.01; 1236 participants, 1 study; very low-certainty evidence). The study did not report on symptom relief, overall survival or progression-free survival for HRT versus placebo. However, they did report the percentage of women alive with no evidence of disease (94.3% in the HRT group and 95.6% in the placebo group) and the percentage of women alive irrespective of disease progression (95.8% in the HRT group and 96.9% in the placebo group) at the end of the 36 months' follow-up. The study did not report time to recurrence and it was underpowered due to closing early. The authors closed it as a result of the publication of the Women's Health Initiative (WHI) study, which, at that time, suggested that risks of exogenous hormone therapy outweighed benefits and had an impact on study recruitment. No assessment of efficacy was reported.

AUTHORS' CONCLUSIONS

Currently, there is insufficient high-quality evidence to inform women considering HRT after treatment for endometrial cancer. The available evidence (both the single RCT and non-randomised evidence) does not suggest significant harm, if HRT is used after surgical treatment for early-stage endometrial cancer. There is no information available regarding use of HRT in higher-stage endometrial cancer (FIGO stage II and above). The use of HRT after endometrial cancer treatment should be individualised, taking account of the woman's symptoms and preferences, and the uncertainty of evidence for and against HRT use.

How do general practitioners manage patients with cancer symptoms? A video-vignette study

OBJECTIVES

Determine how general practitioners (GPs) manage patients with cancer symptoms.

DESIGN

GPs reviewed 24 video-vignettes and case notes on patients with cancer symptoms and indicated whether they would refer the patient and/or prescribe medication, and/or undertake further investigation. According to available guidelines, all cases warranted a referral to a specialist or further investigations.

SETTING

Australian primary care sector.

PARTICIPANTS

102 practising GPs participated in this study, including trainees.

INTERVENTIONS

The research was part of a larger randomised controlled trial testing a referral pro forma; however, this paper reports on management decisions made throughout the study.

PRIMARY AND SECONDARY OUTCOME MEASURES

This paper reports on how the participants would manage the patients depicted in each vignette.

RESULTS

In more than one-in-eight cases, the patient was not investigated or referred. Patient management varied significantly by cancer type (p<0.001). For two key reasons, colorectal cancer was the chosen referent category. First, it represents a prevalent type of cancer. Second, in this study, colorectal cancer symptoms were managed in a similar proportion of options-that is, prescription, referral or investigation. Compared with vignettes featuring colorectal cancer participants were less likely to manage breast, bladder, endometrial, and lung cancers with a 'prescription only' or 'referral only' option. They were less likely to manage prostate cancer with a 'prescription only', yet more likely to manage it with a 'referral with investigation'. With regard to pancreatic and cervical cancers, participants were more likely to manage these with a 'referral only' or a 'referral with investigation'.

CONCLUSIONS

Some patients may receive a delayed cancer diagnosis, even when they present with typical cancer symptoms to a GP who can access relevant diagnostic tests.

TRIAL REGISTRATION NUMBER

ACTRN12611000760976.

Estrogen therapy in gynecological cancer survivors

Treatment of gynecological cancer has significant impact on a woman's quality of life because it commonly includes removal of the uterus and ovaries, both being the core of a woman's femininity, whilst irradiation and chemotherapy, be they as primary therapy or when indicated as postoperative adjuvant therapy, will lead to ablation of ovarian function if the ovaries had not been removed. This will lead to an acute onset of menopausal symptoms, which may be more debilitating than those occurring as a result of natural aging, and of which hot flushes, night sweats, insomnia, mood swings, vaginal dryness, decreased libido, malaise and a general feeling of apathy are the most common. About 25% of gynecological cancers will occur in pre- and perimenopausal women, a large percentage of whom will become menopausal as a result of their treatment. There are also the gynecological cancer survivors who are not rendered menopausal as a result of the treatment strategy but who will become menopausal because of natural aging. Concern among the medical attendants of these women is whether use of estrogen therapy or estrogen and progestogens for their menopausal symptoms will reactivate tumor deposits and therefore increase the rate of recurrence and, as a result, decrease overall survival among these women. Yet the data that are available do not support this concern. There are eight retrospective studies and only one randomized study that have analyzed outcome in endometrial cancer survivors who used hormone therapy after their surgery, whilst, among ovarian cancer survivors, there are four retrospective studies and one randomized study. The studies do suffer from small numbers and, although the studies pertaining to endometrial cancer analyze mostly women with early-stage disease, a number of the studies in both the endometrial and ovarian cancer survivors do have a sizeable follow-up. These studies seem to support that estrogen therapy after the treatment for gynecological cancer does not impact negatively on outcome in endometrial and ovarian cancer survivors and that estrogen therapy can be considered as a plausible therapeutic option in survivors who are debilitated by their menopausal symptoms. It is prudent not to offer estrogen therapy to survivors of endometrial stromal sarcoma and women with granulosa cell tumors of the ovaries. Vulval, vaginal and cervical cancers are not considered hormone-dependent and therefore estrogen therapy can be given.

The safety of postoperative hormone replacement therapy in epithelial ovarian cancer patients in China

OBJECTIVE

This study sought to determine whether postoperative hormone replacement therapy (HRT) has a negative influence on the progression-free and overall survival of epithelial ovarian carcinoma patients.

METHODS

A retrospective chart review identified 77 patients with invasive epithelial ovarian cancer who had received HRT after primary surgical treatment from January 1995 to December 2010 at Peking Union Medical College Hospital. A 1 : 1 cohort of patients with the same diagnosis who did not receive HRT were matched by age and stage. An analysis of both progression-free survival and overall survival was performed using Cox proportional hazards models.

RESULTS

According to the univariate analysis, HRT did not significantly influence progression-free or overall survival. Similarly, different types of HRT (estrogen alone, tibolone alone or an estrogen-tibolone combination) had no significant effect on the prognosis of epithelial ovarian cancer patients. The FIGO stage, differentiation, histological type and resection status were significantly correlated with progression-free survival and, except for histological type, these factors also significantly influenced overall survival. Finally, the multivariate analysis demonstrated that the strongest independent variable in predicting both progression-free survival and overall survival was the FIGO stage of the disease.

CONCLUSION

This study supports the hypothesis that postoperative HRT does not have a negative effect on the progression-free and overall survival of epithelial ovarian cancer patients. However, a multicenter study is needed to support and extend our findings.

Safety assessment of ovarian cryopreservation and transplantation in nude mice bearing human epithelial ovarian cancer

OBJECTIVE

Nude mice with orthotopic transplantation of human ovarian epithelial cancer were used to investigate screening criteria for paraneoplastic normal ovarian tissue and the security of the freezing and thawing for ovarian tissue transplantation.

METHODS

Expression of CK-7, CA125, P53, survivin, MMP-2/TIMP- 2 in paraneoplastic normal ovarian tissues were detected by RT-PCR as well as immunohistochemistry. The tissues of the groups with all negative indicators of RT-PCR, all negative indicators of immunohistochemistry, negative expression of CK-7, CA125 and survivin, positive expression of CK-7, CA125 and survivin, cancer tissues and normal ovarian tissues of nude mice were used for freezing and thawing transplantation, to analyze overt and occult carcinogenesis rates after transplantation.

RESULTS

When all indicators or the main indicators, CK-7, CA125 and survivin, were negative, tumorigenesis did not occur after transplantation. In addition the occult carcinogenesis rate was lower than in the group with positive expression of CK-7, CA125 and survivin (P<0.01). After subcutaneous and orthotopic transplantation of ovarian tissues, rates did not change (P>0.05). There was no statistical significance among rates after transplantation of ovarian tissues which were obtained under different severity conditions (P>0.05).

CONCLUSION

Negative expression of CK-7, CA125 and survivin can be treated as screening criteria for security of ovarian tissues for transplantation. Immunohistochemical methods can be used as the primary detection approach. Both subcutaneous and orthotopic transplantation are safe. The initial severity does not affect the carcinogenesis rate after tissue transplantation. Freezing and thawing ovarian tissue transplantation in nude mice with human epithelial ovarian carcinoma is feasible and safe.

Menopausal hot flushes and night sweats: where are we now?

OBJECTIVE

An overview of the current knowledge on the etiology and treatment of vasomotor symptoms in postmenopausal women.

MATERIALS AND METHODS

Acknowledged experts in the field contributed a brief assessment of their areas of interest which were combined and edited into the final manuscript.

RESULTS

Women around the world experience vasomotor symptoms as they enter and complete the menopause transition. Vasomotor symptoms, specifically hot flushes, are caused by a narrowing of the thermoneutral zone in the brain. This effect, although related to estrogen withdrawal, is most likely related to changes in central nervous system neurotransmitters. Peripheral vascular reactivity is also altered in symptomatic women. Estrogen replacement therapy is the most effective treatment for hot flushes. Of the other interventions investigated, selective serotonin and selective norepinephrine reuptake inhibitors and gabapentin show efficacy greater than placebo. Objective monitoring of hot flushes indicates a robust improvement with hormone replacement therapy but little to no change with placebo. These data suggest that the subjective assessment of responses to therapy for vasomotor symptom results in inaccurate data. Hot flushes have recently been associated with increased cardiovascular risks and a lower incidence of breast cancer, but these data require confirmation.

CONCLUSIONS

Vasomotor symptoms are experienced by women of all ethnic groups. They are caused by changes in the central nervous system associated with estrogen withdrawal and are best treated with estrogen replacement therapy. Objective monitoring of hot flushes indicates that placebo has little to no effect on their improvement. Subjective assessments of hot flushes in clinical trials may be inaccurate based on objective measurement of the frequency of hot flushes. Based on preliminary reports, women experiencing hot flushes have an increased risk of cardiovascular disease and a reduced incidence of breast cancer.