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Sun Y, Xu T, Zhu S, Xu H. Characteristics of adverse drug reactions induced by flutamide and bicalutamide: a real-world pharmacovigilance study using FAERS. Expert Opin Drug Saf 2024; 23:305-311. [PMID: 37795911 DOI: 10.1080/14740338.2023.2267978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/15/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND Flutamide and bicalutamide are indicated for the management of prostate metastatic carcinoma. The current study evaluated the adverse drug reactions related to flutamide and bicalutamide in a real-world setting. METHODS To quantify the signals of flutamide and bicalutamide associated adverse events (AEs), we used the US Food and Drug Administration Adverse Event Reporting System (FAERS) for this pharmacovigilance study using established pharmacovigilance methods. RESULTS A total of 2711 AEs of flutamide were investigated as the primary suspected; 522 AEs were related to prostate cancer. A total of 4459 AEs were investigated as the primary suspected for bicalutamide; 2251 AEs were related to prostate cancer. The analysis demonstrated 29 signals for flutamide and 84 for bicalutamide. Liver function test was the most common AEs for flutamide, and malignant neoplasm progression was the most common for bicalutamide. The signal strength of Dementia Alzheimer's type was 26.53 (17.89-39.35) and 26.33 (607.34), which had the highest strength for flutamide. Anti-androgen withdrawal syndrome exhibited the strongest signal for bicalutamide. Generating awareness of rare AEs that were not listed on the label is critical. CONCLUSIONS The analysis of the AE signals may provide support for prescribing flutamide and bicalutamide.
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Affiliation(s)
- Yu Sun
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Tao Xu
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Suyan Zhu
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Hongbin Xu
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, China
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Tian J, Du E, Jia K, Wang T, Guo L, Zigman JM, Du H. Elevated Ghrelin Promotes Hippocampal Ghrelin Receptor Defects in Humanized Amyloid-β Knockin Mice During Aging. J Alzheimers Dis 2023; 96:1579-1592. [PMID: 38007666 PMCID: PMC10841720 DOI: 10.3233/jad-231002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2023]
Abstract
BACKGROUND Emerging evidence has revealed that dysregulation of the hormone ghrelin and its receptor, growth hormone secretagogue receptor (GHSR), contributes to the pathogenesis of Alzheimer's disease (AD). Specifically, defective GHSR function and resultant hippocampal ghrelin resistance are linked to hippocampal synaptic injury in AD paradigms. Also, AD patients exhibit elevated ghrelin activation. However, the detailed molecular mechanisms of hippocampal GHSR dysfunction and the relevance of ghrelin elevation to hippocampal ghrelin resistance in AD-relevant pathological settings are not fully understood. OBJECTIVE In the current study, we employed a recently established mouse line of AD risk [humanized amyloid beta knockin (hAβ KI mice), also referred to as a mouse model of late-onset AD in previous literature] to further define the role of ghrelin system dysregulation in the development of AD. METHODS We employed multidisciplinary techniques to determine the change of plasma ghrelin and the functional status of GHSR in hAβ KI mice as well as primary neuron cultures. RESULTS We observed concurrent plasma ghrelin elevation and hippocampal GHSR desensitization with disease progression. Further examination excluded the possibility that ghrelin elevation is a compensatory change in response to GHSR dysfunction. In contrast, further in vitro and in vivo results show that agonist-mediated overstimulation potentiates GHSR desensitization through enhanced GHSR internalization. CONCLUSIONS These findings suggest that circulating ghrelin elevation is a pathological event underlying hippocampal GHSR dysfunction, culminating in hippocampal ghrelin resistance and resultant synaptic injury in late-onset AD-related settings.
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Affiliation(s)
- Jing Tian
- Department of Pharmacology and Toxicology, The University of Kansas, Lawrence, KS, USA
| | - Eric Du
- Department of Pharmacology and Toxicology, The University of Kansas, Lawrence, KS, USA
- Blue Valley West High School, Overland Park, KS, USA
| | - Kun Jia
- Department of Pharmacology and Toxicology, The University of Kansas, Lawrence, KS, USA
| | - Tienju Wang
- Department of Pharmacology and Toxicology, The University of Kansas, Lawrence, KS, USA
| | - Lan Guo
- Department of Pharmacology and Toxicology, The University of Kansas, Lawrence, KS, USA
| | - Jeffrey M. Zigman
- Department of Internal Medicine, Center for Hypothalamic Research, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Heng Du
- Department of Pharmacology and Toxicology, The University of Kansas, Lawrence, KS, USA
- Alzheimer’s disease Research Center (ADRC), Department of Neurology, The University of Kansas Medical Center, Kansas City, KS, USA
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Kokorovic A, So AI, Serag H, French C, Hamilton RJ, Izard JP, Nayak JG, Pouliot F, Saad F, Shayegan B, Aprikian A, Rendon RA. UPDATE - Canadian Urological Association guideline on androgen deprivation therapy: Adverse events and management strategies. Can Urol Assoc J 2022; 16:E416-E431. [PMID: 35905482 PMCID: PMC9343157 DOI: 10.5489/cuaj.8054] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Affiliation(s)
- Andrea Kokorovic
- Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Alan I So
- Department of Urological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Hosam Serag
- Department of Urological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Christopher French
- Department of Surgery, Division of Urology, Memorial University, St. John's, NL, Canada
| | - Robert J Hamilton
- Division of Urology, Department of Surgery, Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Jason P Izard
- Department of Urology, Queen's University, Kingston, ON, Canada
| | - Jasmir G Nayak
- Section of Urology, Department of Surgery, University of Manitoba, Winnipeg, MB, Canada
| | | | - Fred Saad
- Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Bobby Shayegan
- Department of Surgery (Urology) and Oncology, McMaster University, Hamilton, ON, Canada
| | | | - Ricardo A Rendon
- Department of Urology, Dalhousie, University, Halifax, NS, Canada
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Chung C, Abboud K. Targeting the androgen receptor signaling pathway in advanced prostate cancer. Am J Health Syst Pharm 2022; 79:1224-1235. [PMID: 35390118 DOI: 10.1093/ajhp/zxac105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
DISCLAIMER In an effort to expedite the publication of articles related to the COVID-19 pandemic, AJHP is posting these manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. PURPOSE This article summarizes current androgen receptor (AR)-directed therapies that have received regulatory approval for the treatment of advanced prostate adenocarcinoma (herein referred to as prostate cancer, PC). SUMMARY PC is an androgen-dependent malignancy in which ligands including testosterone and dihydrotestosterone bind to AR, initiating androgen-AR complex translocation to the nucleus followed by AR-mediated transcription of target genes. Androgen deprivation therapy (ADT), including gonadotropin hormone-releasing hormone (GnRH) agonists with or without AR antagonists (antiandrogens), GnRH antagonists, or bilateral orchiectomy, forms the backbone of treatment for patients with metastatic castration-naive PC and/or castration-resistant PC (CRPC). ADT is also an option for high-risk, early-stage PC after prostatectomy and/or radiation. While ADT is often very effective as initial therapy, resistance ultimately develops despite suppression of gonadal and/or adrenal androgens, leading to CRCPC, which is characterized by mechanisms such as reactivation of the AR signaling pathway, AR overexpression, and gene mutations in the ligand-binding domain of AR that lead to disease progression, resulting in increased symptom burden and ultimately death. However, disease in patients with CRPC is still dependent on androgen signaling, and these patients continue on ADT to maintain a castrate level of serum testosterone. Novel hormonal therapies including agents that target AR directly (eg, AR antagonists) are often added to ADT in this setting. Targeting the AR signaling pathway led to the development of second-generation AR antagonists, examples of which include enzalutamide, apalutamide, and darolutamide. These agents do not exhibit partial agonism or possess a higher affinity for AR and are not postulated to improve survival outcomes relative to their first-generation counterparts for patients with CRPC. Lastly, the emergence of ADT, including second-generation AR antagonists, has led to the development of supportive care for treatment-related adverse effects. CONCLUSION Major advances have been made in targeting the AR signaling pathway in patients with advanced PC. Further studies are warranted to identify the optimal sequencing of therapies to maximize treatment benefit. Mitigation of treatment-related adverse effects presents new opportunities to advance clinical pharmacy practice.
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Ogawa S, Hasegawa A, Makabe S, Onagi A, Matsuoka K, Kayama E, Koguchi T, Hata J, Sato Y, Akaihata H, Kataoka M, Haga N, Kojima Y. Impacts of Neoadjuvant Hormonal Therapy Prior to Robot-Assisted Radical Prostatectomy on Postoperative Hormonal- and Sexual-Related Quality of Life – Assessment by Patient-Reported Questionnaire. Res Rep Urol 2022; 14:39-48. [PMID: 35223660 PMCID: PMC8865904 DOI: 10.2147/rru.s342063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 02/02/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Neoadjuvant hormonal therapy (HT) before radical prostatectomy (RP) is not recommended by current guidelines in terms of oncological outcomes. Despite this, neoadjuvant HT is sometimes conducted before RP for a small proportion of patients in clinical practice. This study evaluated the impacts of neoadjuvant HT on hormonal- and sexual-related quality of life (QOL) among patients who underwent robot-assisted RP (RARP). Materials and Methods Participants comprised 470 patients divided into a non-neoadjuvant HT group (n = 408) and a neoadjuvant HT group (n = 62). Hormonal- and sexual-related QOL were measured using the Expanded Prostate Cancer Index Composite (EPIC) questionnaire. Results Hormonal summary scores at 6 and 9 months, function scores before and 3, 6, and 9 months and bother score at 6 months after RARP were significantly lower in the neoadjuvant HT group than in the non-neoadjuvant HT group. Sexual function scores were decreased in the neoadjuvant HT group compared to the non-neoadjuvant HT group before and 6 months after RARP. In the neoadjuvant HT group, sexual function at 3 months after RARP was significantly worse in patients with >5 months of neoadjuvant HT than in patients with ≤5 months of neoadjuvant HT. Conversely, sexual bother at 3 months after RARP was significantly worse in patients with ≤5 months of neoadjuvant HT than in patients with >5 months of neoadjuvant HT. Conclusion Vintage neoadjuvant HT prior to RARP should not be recommended due to not only oncological outcomes, but also the impacts on postoperative hormonal- and sexual-related QOL.
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Affiliation(s)
- Soichiro Ogawa
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
- Correspondence: Soichiro Ogawa, Department of Urology, Fukushima Medical University School of Medicine, 1, Hikarigaoka, Fukushima, 960-1295, Japan, Tel +81 24 547 1316, Fax +81 24 548 3393, Email
| | - Akihisa Hasegawa
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shunta Makabe
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Akifumi Onagi
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kanako Matsuoka
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Emina Kayama
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tomoyuki Koguchi
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Junya Hata
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yuichi Sato
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hidenori Akaihata
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Masao Kataoka
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Nobuhiro Haga
- Department of Urology, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Yoshiyuki Kojima
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
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Kokorovic A, So AI, Serag H, French C, Hamilton RJ, Izard JP, Nayak JG, Pouliot F, Saad F, Shayegan B, Aprikian A, Rendon RA. Canadian Urological Association guideline on androgen deprivation therapy: Adverse events and management strategies. Can Urol Assoc J 2021; 15:E307-E322. [PMID: 34127184 DOI: 10.5489/cuaj.7355] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Andrea Kokorovic
- Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Alan I So
- Department of Urological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Hosam Serag
- Department of Urological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Christopher French
- Department of Surgery, Division of Urology, Memorial University, St. John's, NL, Canada
| | - Robert J Hamilton
- Division of Urology, Department of Surgery, Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Jason P Izard
- Department of Urology, Queen's University, Kingston, ON, Canada
| | - Jasmir G Nayak
- Section of Urology, Department of Surgery, University of Manitoba, Winnipeg, MB, Canada
| | | | - Fred Saad
- Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Bobby Shayegan
- Department of Surgery (Urology) and Oncology, McMaster University, Hamilton, ON, Canada
| | | | - Ricardo A Rendon
- Department of Urology, Dalhousie, University, Halifax, NS, Canada
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Radiotherapy for prevention or management of gynecomastia recurrence: Future role for general gynecomastia patients in plastic surgery given current role in management of high-risk prostate cancer patients on anti-androgenic therapy. J Plast Reconstr Aesthet Surg 2021; 74:3128-3140. [PMID: 34001449 DOI: 10.1016/j.bjps.2021.03.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 01/09/2021] [Accepted: 03/13/2021] [Indexed: 11/23/2022]
Abstract
PURPOSE Several technologies and innovative approaches continue to emerge for the optimal management of gynecomastia by plastic surgeons; the present study investigates the role of radiation therapy in this context. METHODS A systematic review was performed to evaluate the utility of radiotherapy for the prevention and treatment of gynecomastia incidence or recurrence by plastic surgeons. RESULTS Fifteen articles met the inclusion criteria for review. The mean incidence of gynecomastia was 70% in the high-risk population examined representing prostate cancer patients on estrogen or anti-androgen therapy. Radiotherapy was shown to significantly reduce the incidence to a median of 23%, with all six randomized control studies assessed demonstrating a statistically significant decrease in incidence following radiotherapy prophylaxis. Doses examined ranged from 8 to 16 Gy, delivered between 1 and 11 fractions. Complications following radiotherapy were minor and self-limiting in all cases, restricted to minor skin reactions, and associated with larger radiotherapy doses delivered in fewer fractions. The median complication rate was 12.4% with no major complications, such as neoplastic, pulmonary, or adverse cardiac outcomes. While the efficacy of radiation therapy as a treatment modality for gynecomastia was also established, it was shown to be less effective than other available options. CONCLUSIONS Low-dose radiotherapy to the male breast might be a safe and effective strategy to prevent gynecomastia incidence or recurrence in high-risk patients; further studies are indicated within the common gynecomastia population managed by plastic surgeons to assess the clinical and economical utility of this intervention before a recommendation for its ubiquitous adoption in plastic surgery can be made to continue improving outcomes for high-risk gynecomastia patients.
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Patel H, Arruarana V, Yao L, Cui X, Ray E. Effects of hormones and hormone therapy on breast tissue in transgender patients: a concise review. Endocrine 2020; 68:6-15. [PMID: 32067157 PMCID: PMC7252590 DOI: 10.1007/s12020-020-02197-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/08/2020] [Indexed: 10/25/2022]
Abstract
PURPOSE Hormone replacement therapy (HRT) has become a mainstay medical treatment option for management of gender dysphoria in transgender patients of both biologic sexes. Very little is known about the long-term effects of steroid hormone modulation on breast tissue in this population. Most of the data available on the effects of HRT on breast and reproductive tissues come from studies of postmenopausal cisgender women. Therapeutic regimens are often provider-dependent, and there, are no uniform guidelines in place for cancer surveillance in transgender patients. In this review, we present what forms of hormone therapy and hormone modulation are available to transgender patients, what is known about their effects on male and female breast tissue, and what other endogenous and exogenous factors contribute to the macroscopic and cellular changes observed. METHODS A search for the existing literature focusing on therapeutic regimens and the effects of HRT on breast tissue provided the most current information available for this review. Recent evidence-based reports (since the year 2000) and reviews were given priority over anecdotal evidence and expert opinions when conflicting information was encountered. Older resources were considered when primary sources were needed. Given the paucity of available articles on this subject, all resources were given careful consideration. RESULTS Information about the risks associated with HRT in the current literature and in this setting is limited and often conflicting, due to a scarcity of long-term studies tracking breast pathology among transgender men and women. CONCLUSIONS We conclude that the long-term effects of off-label pharmaceutical use for modulation of hormone levels and sexual characteristics in transgender patients have not been well studied. The tendency of steroid hormones to promote the growth of certain cancers also raises questions about the safety of differing doses and drug combinations. Further clinical and laboratory study is needed to better establish safety and dosing guidelines in transgender patients.
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Affiliation(s)
- Harsh Patel
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Victor Arruarana
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Lucille Yao
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Xiaojiang Cui
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Edward Ray
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
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Treatment strategies to prevent and reduce gynecomastia and/or breast pain caused by antiandrogen therapy for prostate cancer : Statement from the DEGRO working group prostate cancer. Strahlenther Onkol 2020; 196:589-597. [PMID: 32166452 PMCID: PMC7305090 DOI: 10.1007/s00066-020-01598-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 02/18/2020] [Indexed: 11/23/2022]
Abstract
Aim To provide an overview on the available treatments to prevent and reduce gynecomastia and/or breast pain caused by antiandrogen therapy for prostate cancer. Methods The German Society of Radiation Oncology (DEGRO) expert panel summarized available evidence published and assessed the validity of the information on efficacy and treatment-related toxicity. Results Eight randomized controlled trials and one meta-analysis were identified. Two randomized trials demonstrated that prophylactic radiation therapy (RT) using 1 × 10 Gy or 2 × 6 Gy significantly reduced the rate of gynecomastia but not breast pain, as compared to observation. A randomized dose-finding trial identified the daily dose of 20 mg tamoxifen (TMX) as the most effective prophylactic dose and another randomized trial described that daily TMX use was superior to weekly use. Another randomized trial showed that prophylactic daily TMX is more effective than TMX given at the onset of gynecomastia. Two other randomized trials described that TMX was clearly superior to anastrozole in reducing the risk for gynecomastia and/or breast pain. One comparative randomized trial between prophylactic RT using 1 × 12 Gy and TMX concluded that prophylactic TMX is more effective compared to prophylactic RT and furthermore that TMX appears to be more effective to treat gynecomastia and/or breast pain when symptoms are already present. A meta-analysis confirmed that both prophylactic RT and TMX can reduce the risk of gynecomastia and/or breast pain with TMX being more effective; however, the rate of side effects after TMX including dizziness and hot flushes might be higher than after RT and must be taken into account. Less is known regarding the comparative effectiveness of different radiation fractionation schedules and more modern RT techniques. Conclusions Prophylactic RT as well as daily TMX can significantly reduce the incidence of gynecomastia and/or breast pain. TMX appears to be an effective alternative to RT also as a therapeutic treatment in the presence of gynecomastia but its side effects and off-label use must be considered.
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Abstract
Gynecomastia is defined as a unilateral or bilateral persistent benign mammary gland enlargement in men. Prevalence of asymptomatic gynecomastia is up to 65%. True gynecomastia must be distinguished from pseudogynecomastia. Typically, in true gynecomastia, a solid tissue mass is palpable below the nipple-areolar complex. Malignant changes such as male mammary carcinoma must always be ruled out. The causes of gynecomastia are diverse. An imbalance of female to male hormones triggers the onset of the disease. This imbalance can be caused by endogenous diseases like hyperthyroidism, chronic liver disease, primary or secondary gonadal failure, androgen resistance syndromes, medication, and drug abuse. A series of heart or hypertension medications can also trigger gynecomastia. A basic requirement of proper therapy planning is knowledge of the triggers and possible drug therapy options. Inquiring about the patient's lifestyle and medication history is essential. Drug therapy with tamoxifen may be considered at an early stage. For gynecomastia persisting over 12 months, surgical excision is the treatment of choice, and there are several surgical options available depending on the grade of the gynecomastia. A thoughtful approach to managing this condition can lead to high patient satisfaction.
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Affiliation(s)
- Kristin Baumann
- Clinic for Gynecology and Obstetrics, University Medical Centre Schleswig-Holstein Campus Lübeck, Lübeck, Germany
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Nguyen PL, Alibhai SMH, Basaria S, D'Amico AV, Kantoff PW, Keating NL, Penson DF, Rosario DJ, Tombal B, Smith MR. Adverse effects of androgen deprivation therapy and strategies to mitigate them. Eur Urol 2014; 67:825-36. [PMID: 25097095 DOI: 10.1016/j.eururo.2014.07.010] [Citation(s) in RCA: 510] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 07/11/2014] [Indexed: 01/11/2023]
Abstract
CONTEXT Androgen-deprivation therapy (ADT) is a key component of treatment for aggressive and advanced prostate cancer, but it has also been associated with adverse effects on bone, metabolic, cardiovascular, sexual, and cognitive health as well as body composition. OBJECTIVE To review the current literature on the adverse effects of ADT and strategies for ameliorating harm from ADT. EVIDENCE ACQUISITION The Medline database (through PubMed) was searched from inception to August 1, 2013, for studies documenting the side effects of ADT and for randomized and prospective trials of interventions to mitigate those side effects. EVIDENCE SYNTHESIS Adverse effects of ADT include decreases in bone mineral density; metabolic changes such as weight gain, decreased muscle mass, and increased insulin resistance; decreased libido and sexual dysfunction; hot flashes; gynecomastia; reduced testicle size; anemia; and fatigue. Several observational studies suggest an increased risk of diabetes and cardiovascular events, although most published studies report that ADT is not linked to greater cardiovascular mortality. Randomized trials have found value in treatments for some adverse effects including bone loss (bisphosphonates, denosumab, selective estrogen receptor modulators), markers of metabolic syndrome (exercise, diet, metformin), gynecomastia (tamoxifen, prophylactic radiation), muscle loss (resistance and aerobic exercise), and hot flashes (venlafaxine, medroxyprogesterone, cyproterone acetate, gabapentin). CONCLUSIONS ADT is often a necessary component of the treatment of aggressive prostate cancer, yet it has known harms that can impair health and quality of life. Clinicians should be aware of interventions that can help mitigate these adverse effects. PATIENT SUMMARY Androgen deprivation therapy is a critical component of the management of aggressive and advanced prostate cancer, but it causes adverse effects including bone loss, metabolic changes, gynecomastia, muscle loss, hot flashes, and possibly increased cardiovascular events. Clinicians should be aware of interventions that can help mitigate these adverse effects.
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Affiliation(s)
- Paul L Nguyen
- Department of Radiation Oncology, Dana-Farber/Brigham and Women's Cancer Center, Boston, MA, USA.
| | | | - Shehzad Basaria
- Section on Men's Health, Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Anthony V D'Amico
- Department of Radiation Oncology, Dana-Farber/Brigham and Women's Cancer Center, Boston, MA, USA
| | - Philip W Kantoff
- Lank Center for Genitourinary Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Nancy L Keating
- Division of General Internal Medicine, Department of Medicine, Brigham and Women's Hospital, and Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - David F Penson
- Department of Urologic Surgery and the Center for Surgical Quality and Outcomes Research, Vanderbilt University, and the VA Tennessee Valley Geriatric Research, Education, and Clinical Center, Nashville, TN, USA
| | - Derek J Rosario
- Academic Urology Unit, Department of Oncology, Royal Hallamshire Hospital, University of Sheffield, Sheffield, UK
| | - Bertrand Tombal
- Division of Urology, Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Matthew R Smith
- Department of Hematology-Oncology, Massachusetts General Hospital Cancer Center, Boston, MA, USA
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13
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Bautista-Vidal C, Barnoiu O, García-Galisteo E, Gómez-Lechuga P, Baena-González V. Treatment of gynecomastia in patients with prostate cancer and androgen deprivation. Actas Urol Esp 2014; 38:34-40. [PMID: 23850393 DOI: 10.1016/j.acuro.2013.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 01/12/2013] [Accepted: 02/10/2013] [Indexed: 11/18/2022]
Abstract
CONTEXT Gynecomastia, defined as benign proliferation of glandular breast tissue has a prevalence of 32% to 72% in the male. In the urology setting, it is associated to patients with prostate cancer and hormone treatment with a prevalence of 15% in the case of complete hormone blockage and 75% in monotherapy. The different options of treatment in prostate cancer have changed in recent decades. Thus, we have focused on this subject to evaluate the different therapy options of hormone manipulation induced gynecomastia in prostate cancer patients. OBJECTIVE To synthesize the available evidence on the different therapeutic options in prostate cancer patients who develop gynecomastia due to the use of nonsteroidal antiandrogens and to generate a diagnostic algorithm and treatment. ACQUISITION OF EVIDENCE Using the PICO type structured search strategy (Patient or problem, Intervention, Comparison, Outcome or result) in the data bases of PubMed-Medline and Cochrane, identification was made of the relevant studies related to the treatment of gynecomastia in Prostate Cancer patients treated with nonsteroidal antiandrogens. SYNTHESIS OF EVIDENCE We have found 3 possible therapeutic options for the treatment of gynecomastia and mastodynia in patients with hormone deprivation therapy for prostate cancer. The 10Gy radiotherapy would be an option for the treatment of gynecomastia, although not all the patients need prophylactic treatment since only 50% report moderate-severe discomfort. Another option is the use of drugs such as tamoxifen 20mg/day that lead to a significant decrease in the mammary effects. CONCLUSIONS Gynecomastia and mastodynia, given their high incidence, make the physical examination a fundamental tool for all patients before initiating treatment with antiandrogens. The use of tamoxifen 20mg/day is the best treatment and prevention option against gynecomastia and mastodynia, while in the case of long-course established gynecomastia, surgery is the gold standard.
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Affiliation(s)
- C Bautista-Vidal
- Unidad de Gestión Clínica de Urología, Hospital Regional Universitario Carlos Haya, Málaga, España.
| | - O Barnoiu
- Unidad de Gestión Clínica de Urología, Hospital Regional Universitario Carlos Haya, Málaga, España
| | - E García-Galisteo
- Unidad de Gestión Clínica de Urología, Hospital Regional Universitario Carlos Haya, Málaga, España
| | - P Gómez-Lechuga
- Unidad de Gestión Clínica de Urología, Hospital Regional Universitario Carlos Haya, Málaga, España
| | - V Baena-González
- Unidad de Gestión Clínica de Urología, Hospital Regional Universitario Carlos Haya, Málaga, España
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Alesini D, Iacovelli R, Palazzo A, Altavilla A, Risi E, Urbano F, Manai C, Passaro A, Magri V, Cortesi E. Multimodality Treatment of Gynecomastia in Patients Receiving Antiandrogen Therapy for Prostate Cancer in the Era of Abiraterone Acetate and New Antiandrogen Molecules. Oncology 2013; 84:92-9. [DOI: 10.1159/000343821] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 09/17/2012] [Indexed: 11/19/2022]
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15
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A randomized trial of aerobic versus resistance exercise in prostate cancer survivors. J Aging Phys Act 2012; 21:455-78. [PMID: 23238110 DOI: 10.1123/japa.21.4.455] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Androgen-deprivation therapy (ADT) for prostate cancer (PCa) has side effects that significantly impair health-related quality of life (HRQOL). Exercise ameliorates many side effects of ADT, but different modalities, particularly in the home-based setting, have not been well studied. In this study the authors randomly assigned 66 PCa survivors receiving ADT to 6 mo of home-based aerobic or resistance training. Psychosocial well-being and physical fitness were measured at baseline, 3 and 6 mo, and then 6 mo postintervention. Intention-to-treat analyses showed that fatigue and HRQOL were not significantly different between groups; however, in a per-protocol analysis the resistance-exercise training group demonstrated clinically significant improvements in HRQOL. Differential within-group effects on physical fitness were also observed at various time points. At all time points, the aerobic-training group engaged in significantly more physical activity than the resistance-training group, a finding that should be further examined given evidence-based guidelines for activity volume in cancer survivors.
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16
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Kunath F, Keck B, Antes G, Wullich B, Meerpohl JJ. Tamoxifen for the management of breast events induced by non-steroidal antiandrogens in patients with prostate cancer: a systematic review. BMC Med 2012; 10:96. [PMID: 22925442 PMCID: PMC3464149 DOI: 10.1186/1741-7015-10-96] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 08/28/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Tamoxifen has emerged as a potential management option for gynecomastia and breast pain due to non-steroidal antiandrogens, and it is considered an alternative to surgery or radiotherapy. The objective of this systematic review was to assess the benefits and harms of tamoxifen, in comparison to other treatment options, for either the prophylaxis or treatment of breast events induced by non-steroidal antiandrogens in prostate cancer patients. METHODS We searched CENTRAL, MEDLINE, EMBASE, reference lists, the abstracts of three major conferences and three trial registers to identify ongoing randomized controlled trials (RCTs). Two authors independently screened the articles identified, assessed the trial quality and extracted data. The protocol was prospectively registered (CRD42011001320; http://www.crd.york.ac.uk/PROSPERO). RESULTS Four studies were identified. Tamoxifen significantly reduced the risk of suffering from gynecomastia (risk ratio 9RR0 0.10, 95% CI 0.05 to 0.22) or breast pain (RR 0.06, 95% CI 0.02 to 0.17) at six months compared to untreated controls. Tamoxifen also showed a significant benefit for the prevention of gynecomastia (RR 0.22, 95% CI 0.08 to 0.58) and breast pain (RR 0.25, 95% CI 0.10 to 0.64) when compared to anastrozole after a median of 12 months. One study showed a significant benefit of tamoxifen for the prevention of gynecomastia (RR 0.24, 95% CI 0.09 to 0.65) and breast pain (RR 0.20, 95% CI 0.06 to 0.65) when compared with radiotherapy at six months. Radiotherapy increased the risk of suffering from nipple erythema and skin irritation, but there were no significant differences for any other adverse events (all P>0.05). CONCLUSIONS The currently available evidence suggests good efficacy of tamoxifen for the prevention and treatment of breast events induced by non-steroidal antiandrogens. The impact of tamoxifen therapy on long-term adverse events, disease progression and survival remains unclear. Further large, well-designed RCTs, including long-term follow-ups, are warranted. Also, the optimal dose needs to be clarified.
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Affiliation(s)
- Frank Kunath
- German Cochrane Center, Institute of Medical Biometry and Medical Informatics, University Medical Center Freiburg, Berliner Allee 29, 79110 Freiburg/Br., Germany.
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17
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Viani GA, Bernardes da Silva LG, Stefano EJ. Prevention of gynecomastia and breast pain caused by androgen deprivation therapy in prostate cancer: tamoxifen or radiotherapy? Int J Radiat Oncol Biol Phys 2012; 83:e519-24. [PMID: 22704706 DOI: 10.1016/j.ijrobp.2012.01.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Indexed: 11/24/2022]
Abstract
PURPOSE To determine, in a meta-analysis, whether gynecomastia and breast pain rates in men with prostate cancer treated with androgen deprivation therapy (ADT) are reduced if treated with prophylactic radiotherapy (RT) or tamoxifen (TMX). METHODS AND MATERIALS The MEDLINE, EMBASE, CANCERLIT, and Cochrane Library databases, as well as proceedings of annual meetings, were systematically searched to identify randomized, controlled studies comparing RT or TMX with observation for men with prostate cancer using ADT. RESULTS Six RCTs (three RT trials and three TMX trials, N = 777 patients total) were identified that met the study criteria. Pooled results from these RCTs comparing RT vs. observation showed a significant reduction in the incidence of gynecomastia and breast pain rates in patients treated with RT (odds ratio [OR] = 0.21, 95% confidence interval [CI] = 0.12-0.37, p < 0.0001, and OR = 0.34, 95% CI 0.20-0.57, p < 0.0001, respectively). Use of RT resulted in an absolute risk reduction (ARR) of 29.4% and 19.9%, with a number needed to treat (NNT) of 3.4 and 5 to avoid one case of gynecomastia and breast pain, respectively. Pooled results from trials comparing TMX vs. observation showed a statistical benefit for breast pain and gynecomastia in favor of TMX arms (OR = 0.04, 95% CI = 0.02-0.08, p < 0.0001 and OR = 0.07, 95% CI = 0.0-0.14, p < 0.00001). TMX resulted in an ARR = 64.1% and 47.6%, with an NNT of 1.56 and 2.1 to avoid one case of gynecomastia and breast pain, respectively. Considering adverse effects, TMX was 6 times more adverse effects than RT. CONCLUSIONS Our data have shown that both TMX and RT prevented gynecomastia and breast pain in patients with prostate cancer receiving ADT for prostate cancer. Although TMX was two times more effective in preventing gynecomastia, RT should represent an effective and safe treatment option, to take into account mainly in patients with cardiovascular risk factors or thrombotic diathesis.
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Affiliation(s)
- Gustavo Arruda Viani
- Department of Radiation Oncology, Marilia Medical School, Marília, São Paulo, Brazil.
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18
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Low rate of clinician-scored gynecomastia induced by 6 months of combined androgen blockade in a randomized trial: Implications for prophylactic breast irradiation. Pract Radiat Oncol 2012; 2:172-178. [PMID: 24674120 DOI: 10.1016/j.prro.2011.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 08/18/2011] [Accepted: 08/18/2011] [Indexed: 11/22/2022]
Abstract
PURPOSE To determine the incidence and predictors of clinician-scored gynecomastia induced by 6 months of combined androgen blockade (CAB) in a randomized trial. METHODS We studied 94 men with intermediate or high-risk prostate cancer randomized to radiation plus 6 months of neoadjuvant CAB consisting of a gonadotropin-releasing hormone agonist and antiandrogen (flutamide). Patients were assessed for breast symptoms monthly as per protocol. Patients reporting breast tenderness or enlargement were then examined shirtless. RESULTS Median age at entry was 72.1 years. While 52 patients (55.3%) reported either breast tenderness or enlargement, only 9 patients (9.6%) were scored as having gynecomastia when examined shirtless by a single clinician. Four patients received radiation for self-reported breast tenderness or enlargement without clinician-scored gynecomastia. If these 4 had not been radiated, the total incidence of clinician-scored gynecomastia may have been as high as 13 of 94 (13.8%). No patient variable, such as age, body-mass index, and Adult Comorbidity Evaluation-27 score, or discontinuation of the antiandrogen, was associated with the development of gynecomastia. CONCLUSIONS While many patients self-reported breast tenderness or enlargement with short-course CAB, the incidence of breast enlargement noticeable to an examiner when the patient was shirtless was less than 15%, which is much lower than the 60% to 80% rates typically reported with antiandrogen monotherapy. Given that the long-term risks of prophylactic breast irradiation are not well characterized, these data suggest that prophylactic breast irradiation may not be as necessary in men receiving short-course CAB.
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Rare Tumors and Benign Diseases. Radiat Oncol 2012. [DOI: 10.1007/978-3-642-27988-1_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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21
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Barboro P, Repaci E, Ferrari N, Rubagotti A, Boccardo F, Balbi C. Androgen receptor and heterogeneous nuclear ribonucleoprotein K colocalize in the nucleoplasm and are modulated by bicalutamide and 4-hydroxy-tamoxifen in prostatic cancer cell lines. Prostate 2011; 71:1466-79. [PMID: 21321982 DOI: 10.1002/pros.21366] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Accepted: 01/24/2011] [Indexed: 01/18/2023]
Abstract
BACKGROUND Bicalutamide (BIC) is widely used in prostate cancer therapy. The dose and schedule employed are well tolerated, but about 50% of patients develop gynecomastia. Several studies have shown a significant reduction of the troublesome effects when Tamoxifen is concomitantly administered with BIC. However, the results reported in the literature seem to be preliminary and possible interferences could be present. In order to clarify the molecular mechanisms of the combination of the two drugs, we have investigated whether the expression of the proteins belonging to nuclear matrix (NM), one modulator of hormone action, is altered by BIC and/or 4-hydroxy-tamoxifen (4OHT) in LNCaP cells. We focused above all on heterogeneous nuclear ribonucleoprotein K (hnRNP K) a NM protein with a key role in prostate carcinoma. METHODS NM proteins were analyzed by two-dimensional gel electrophoresis. Modulation and compartmentalization of the androgen receptor and the hnRNP K were studied by Western blotting, confocal microscopy, and immunoprecipitation. RESULTS Proteomic analysis revealed that there is a similarity in the changes of the NM proteins elicited by drugs alone but that their combination does not result in a simple additive effect. Moreover, we found that in the nucleoplasm the androgen receptor and the hnRNP K colocalize in a complex that is highly proximal to DNA and that both proteins were synchronously modulated by BIC and/or 4OHT treatment. CONCLUSION This study confirm the pivotal role of hnRNP K in prostate carcinoma and suggest that this role might be played by the interaction with the androgen receptor.
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Affiliation(s)
- Paola Barboro
- Istituto Nazionale per la Ricerca sul Cancro, Università di Genova, Largo Rosanna Benzi, Genova, Italy
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22
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Johnson RE, Kermott CA, Murad MH. Gynecomastia - evaluation and current treatment options. Ther Clin Risk Manag 2011; 7:145-8. [PMID: 21479145 PMCID: PMC3071351 DOI: 10.2147/tcrm.s10181] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Indexed: 11/23/2022] Open
Abstract
CLINICAL QUESTION What is the best management approach for gynecomastia? RESULTS In most patients, surgical correction usually leads to immediate cosmetic and symptomatic improvement and is considered the best approach. In men who are being treated with antiandrogen therapies, pharmacological intervention with tamoxifen is the most effective approach, followed by radiotherapy. IMPLEMENTATION Pitfalls to avoid when treating gynecomastia Failure to detect the very rare male breast cancerOverly aggressive early intervention or evaluationAppropriate medical interventionWhen to refer to specialist treatment.
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Affiliation(s)
- Ruth E Johnson
- Mayo Clinic, Division of Preventive, Occupational and Aerospace Medicine, Rochester, Minnesota, USA
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23
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An open, randomised, multicentre, phase 3 trial comparing the efficacy of two tamoxifen schedules in preventing gynaecomastia induced by bicalutamide monotherapy in prostate cancer patients. Eur Urol 2009; 57:238-45. [PMID: 19481335 DOI: 10.1016/j.eururo.2009.05.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2009] [Accepted: 05/07/2009] [Indexed: 10/20/2022]
Abstract
BACKGROUND Bicalutamide monotherapy is a valuable option for prostate cancer (PCa) patients who wish to avoid the consequences of androgen deprivation; however, this treatment induces gynaecomastia and mastalgia in most patients. Tamoxifen is safe and effective in preventing breast events induced by bicalutamide monotherapy without affecting antitumor activity, but possible interference between bicalutamide and tamoxifen remains a matter of concern. To reduce the exposure to tamoxifen, we considered the putative advantages of weekly administration. OBJECTIVE To compare the efficacy of two different schedules of tamoxifen in preventing breast events. Toxicity, prostate-specific antigen behaviour, and sexual-functioning scores were also evaluated. DESIGN, SETTING, AND PARTICIPANTS This was a noninferiority trial. From December 2003 to February 2006, 80 patients with localised/locally advanced or biochemically recurrent PCa who were also candidates for bicalutamide single therapy were randomised to receive two different schedules of tamoxifen: daily (n=41) and weekly (n=39). Median follow-up was 24.2 mo. INTERVENTION Daily bicalutamide (150 mg) plus daily tamoxifen 20mg continuously (daily group) or the same but with tamoxifen at 20mg weekly after the first 8 wk of daily treatment (weekly group). Three patients in the weekly group and one in the daily group were discontinued for adverse events. MEASUREMENTS For gynaecomastia, we used ultrasonography. For mastalgia and sexual functioning, we used questionnaires. RESULTS AND LIMITATIONS Gynaecomastia developed in 31.7% of patients in the daily group and in 74.4% of patients in the weekly group (p<0.0001), and it was more severe in patients who switched to weekly tamoxifen (p=0.001). Mastalgia occurred in 12.2% and 46.1% of patients, respectively (p=0.001). There were no major differences among treatment schedules relative to sexual functioning scores and incidence and severity of adverse events. No differences between groups in PSA behaviour and disease progression have been detected so far. CONCLUSIONS This study demonstrated that tamoxifen 20mg/wk is inferior to tamoxifen 20mg/d in preventing the incidence and severity of bicalutamide-induced breast events. The safety and efficacy of tamoxifen at the common daily dose of 20mg for the prophylaxis of bicalutamide-induced breast events were confirmed.
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24
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Wassersug RJ, Oliffe JL. The social context for psychological distress from iatrogenic gynecomastia with suggestions for its management. J Sex Med 2008; 6:989-1000. [PMID: 19175864 DOI: 10.1111/j.1743-6109.2008.01053.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Gynecomastia (breast development in males) is a side effect of androgen deprivation therapy (ADT) for prostate cancer (PCa). Medical interventions to prevent or treat gynecomastia carry risk of additional detrimental side effects. However, untreated gynecomastia can be physically uncomfortable and psychologically distressing. Shame from gynecomastia can lead patients to stop otherwise beneficial exercise. AIMS Our first aim is to explore the social context for gynecomastia and how it is interpreted by men with the condition, as well as by others, both male and female. Subsequently, we use our understanding of why gynecomastia is psychologically distressing to propose psychosocial interventions that could help men accept this side effect of ADT. METHODS We draw on academic literature, media accounts, and web-based testimonials from men with gynecomastia, to understand how gynecomastia is perceived by both patients and the medical community. We examine these resources in light of gynecomastia's impact on sex roles, sexuality, and gender identity issues. MAIN OUTCOME MEASURES By exploring what breasts in a male mean to the individual, we produce an understanding of the social context for distress from gynecomastia. From this understanding, we derive hypotheses about who might be most distressed from gynecomastia and strategies for alleviating this distress. RESULTS The shame and stigma of gynecomastia is linked to the objectification of women. We suggest that men fear that their breasts will marginalize and subordinate them within gender hierarchies. There is little evidence that breasts on a male erotically attract either men or women. Novel options for living with gynecomastia are contrasted with medicalized strategies including mastectomy. CONCLUSION Assessment instruments need to be developed to identify patients most likely to experience distress from gynecomastia and seek out medical interventions. Surgical, radiological, or pharmacological interventions may not be universally necessary if greater acceptance of gynecomastia is made available through psychosocial support programs. For example, PCa patients may learn to accept gynecomastia through reconceptualizing their breasts as autoerotic. Support programs modeled on those of the breast cancer community, including Encore and dragon boat racing, may also help to build communities to serve patients with gynecomastia while defending individuals against shame, isolation, and loss of self-esteem.
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Affiliation(s)
| | - John L Oliffe
- University of British Columbia-School of Nursing, Vancouver, Canada
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25
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Affiliation(s)
- Glenn D Braunstein
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
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26
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Abstract
Gynaecomastia, a benign enlargement of the male breast as a result of proliferation of the glandular component, is common, being present in 30-50% of healthy men. It may be an incidental finding, an acute unilateral or bilateral tender breast enlargement or a progressive painless enlargement of the male breast. A general medical history and careful physical examination, looking for features suggestive of breast cancer, often suffice for evaluation in patients without symptoms or those with incidentally discovered breast enlargement. If the gynaecomastia is of recent onset, a more detailed evaluation, including selected laboratory tests to search for an underlying cause is necessary. Treatment depends on the cause: an offending drug may need to be withdrawn or alternatively radiation, surgery and/or medical therapy may be necessary. The use of a combination of surgical excision and liposuction through a periareolar incision represents the surgical approach of choice.
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Affiliation(s)
- P Gikas
- St George's Hospital, London, UK
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27
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Fradet Y, Egerdie B, Andersen M, Tammela TLJ, Nachabe M, Armstrong J, Morris T, Navani S. Tamoxifen as Prophylaxis for Prevention of Gynaecomastia and Breast Pain Associated with Bicalutamide 150mg Monotherapy in Patients with Prostate Cancer: A Randomised, Placebo-Controlled, Dose–Response Study. Eur Urol 2007; 52:106-14. [PMID: 17270340 DOI: 10.1016/j.eururo.2007.01.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2006] [Accepted: 01/05/2007] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To define the optimum tamoxifen dose for reducing bicalutamide (CASODEX) 150 mg monotherapy-induced breast events (ie, gynaecomastia or breast pain or both) without compromising disease control. METHODS This was a double-blind, parallel-group, multicentre trial in which 282 patients with prostate cancer were randomised to receive bicalutamide 150 mg/d plus either daily tamoxifen (1, 2.5, 5, 10, or 20mg) or placebo for 12 mo, followed by 12 mo of treatment with bicalutamide only. Primary end points were incidence of breast events and prostate-specific antigen (PSA) inhibition and were analysed at 6 mo (the primary analysis) and also at 12 and 24 mo. RESULTS At 6 and 12 mo, tamoxifen decreased the incidence of breast events in a dose-dependent manner, with breast events observed in 86.2%, 60.0%, 55.3%, 23.5%, and 8.8% of patients receiving tamoxifen 1, 2.5, 5, 10, and 20 mg, respectively, compared with 96.7% of patients receiving placebo at 6 mo. At 24 mo (ie, after 12 mo of bicalutamide monotherapy), a high incidence of breast events was seen in all groups. There was no evidence of a negative effect on PSA inhibition at any assessment. Other nonbreast adverse effects were similar across groups, except for an increase in hot flushes with tamoxifen doses > or =5 mg. CONCLUSION These findings suggest that prophylactic tamoxifen 20 mg/d is an effective dose for reduction of bicalutamide-induced breast events and does not appear to affect disease control based on PSA suppression.
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Affiliation(s)
- Yves Fradet
- Centre De Recherche, Chuq-Hotel-Dieu de Quebec, Quebec, PQ, Canada.
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28
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Stein ME, Boehmer D, Kuten A. Radiation therapy in prostate cancer. RECENT RESULTS IN CANCER RESEARCH. FORTSCHRITTE DER KREBSFORSCHUNG. PROGRES DANS LES RECHERCHES SUR LE CANCER 2007; 175:179-99. [PMID: 17432560 DOI: 10.1007/978-3-540-40901-4_11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Adenocarcinoma of the prostate is one of the most frequently diagnosed cancers of men in the Western hemisphere and is second only to lung cancer for male cancer mortality. Most patients are diagnosed in the early/clinically localized stage, which can be treated curatively with radiation therapy alone. Innovative methods such as brachytherapy, three-dimensional conformal radiotherapy (3D-CRT), and IMRT (intensity modulated radiotherapy) are able to deliver very high tumoricidal doses to the diseased prostate, with minimal side effects to the surrounding tissue. Radiation therapy combined with hormonal treatment can be curative in locally advanced disease. Radiation therapy is also very effective in alleviating symptoms of metastatic prostate cancer (bone metastases, spinal cord compression, and bladder outlet obstruction).
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Affiliation(s)
- Moshe E Stein
- Department of Oncology and Radiation Therapy, Rambam Medical Center, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa
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29
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Di Lorenzo G, Autorino R. Bicalutamide-induced gynaecomastia: do we have the answer? Eur Urol 2007; 52:5-8. [PMID: 17258386 DOI: 10.1016/j.eururo.2007.01.063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2007] [Accepted: 01/15/2007] [Indexed: 11/19/2022]
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30
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Abstract
Bicalutamide (Casodex) is a competitive androgen receptor antagonist that inactivates androgen-regulated prostate cell growth and function, leading to cell apoptosis and inhibition of prostate cancer growth. It is administered orally as a once-daily dose. In the EU and a number of other countries, bicalutamide 150 mg/day is approved in men with locally advanced nonmetastatic prostate cancer as immediate therapy either as an adjuvant to active treatment or as monotherapy as an alternative to surgical or medical castration. Combined analysis of the three trials that comprise the bicalutamide Early Prostate Cancer (EPC) programme showed that bicalutamide administered in conjunction with standard care in men with locally advanced prostate cancer offers disease-free survival benefits over standard care alone and is generally well tolerated. Overall survival was improved to a greater extent in the subgroup of patients who received bicalutamide plus radiation therapy compared with radiation therapy alone. Men with localised prostate cancer do not benefit from the addition of bicalutamide to standard care. Combined analysis of two other studies in men with locally advanced prostate cancer show that bicalutamide monotherapy offers better tolerability and higher health-related quality-of-life (HR-QOL) scores for sexual interest and physical capacity compared with surgical or medical castration, while achieving disease-free and overall survival durations that were not significantly different. Thus, when treatment options are being evaluated, bicalutamide as adjuvant therapy or monotherapy should be considered as an alternative to other available hormonal therapies in men with locally advanced prostate cancer, especially in those who wish to maintain an active lifestyle.
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Affiliation(s)
- Keri Wellington
- Adis International Limited, 41 Centorian Drive, Mairangi Bay, Auckland 1311, New Zealand.
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