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Cao J, Chen H, Zhang Y, Kang Y, Zhou S, Liao Z, Gao L, Yin J, Jing Y. Androgen deprivation exacerbates AD pathology by promoting the loss of microglia in an age-dependent manner. Life Sci 2024; 355:122973. [PMID: 39142510 DOI: 10.1016/j.lfs.2024.122973] [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: 04/30/2024] [Revised: 07/25/2024] [Accepted: 08/10/2024] [Indexed: 08/16/2024]
Abstract
AIMS Microglial cells are integral to the pathogenesis of Alzheimer's disease (AD). The observed sex disparity in AD prevalence, with a notable predominance in women, implies a potential influence of sex hormones, such as androgens, on disease mechanisms. Despite this, the specific effects of androgens on microglia remain unclear. This study is designed to delineate the interplay between androgens and the survival and inflammatory profile of microglial cells, as well as to explore their contribution to the progression of AD. METHODS AND KEY FINDINGS To create a chronic androgen deficiency model, 3-month-old wild-type (WT) mice and APP/PS1 mice underwent bilateral orchiectomy (ORX), with age-matched sham-operated controls. Cognitive and memory were evaluated at 5 and 12 months, paralleled by assessments of amyloid-beta (Aβ) and microglial morphology in hippocampal and cortical areas. The ORX treatment in mice resulted in diminished microglial populations and morphological alterations, alongside an increase in Aβ plaques and a concomitant decline in cognitive performance that exacerbated over time. In vitro, dihydrotestosterone (DHT) was found to stimulate microglial proliferation and ameliorate Aβ1-42-induced apoptosis. SIGNIFICANCE These findings suggested that androgens may exert a protective role, maintaining the normal proliferation and functionality of microglial cells. This preservation could potentially slow the progression of AD. As a result, our study provided a conceptual framework for the development of novel therapeutic strategies for AD.
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Affiliation(s)
- Jiaxin Cao
- Institute of Anatomy and Histology & Embryology, Neuroscience, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Haichao Chen
- Institute of Anatomy and Histology & Embryology, Neuroscience, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Yishu Zhang
- Institute of Anatomy and Histology & Embryology, Neuroscience, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Yiting Kang
- Institute of Anatomy and Histology & Embryology, Neuroscience, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Siwei Zhou
- Institute of Anatomy and Histology & Embryology, Neuroscience, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Zirui Liao
- Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Liping Gao
- Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Jie Yin
- Institute of Anatomy and Histology & Embryology, Neuroscience, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Yuhong Jing
- Institute of Anatomy and Histology & Embryology, Neuroscience, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, People's Republic of China; Key Laboratory of Preclinical Study for New Drugs of Gansu province, Lanzhou University, Lanzhou, Gansu, People's Republic of China.
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2
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Bassyouny NM, Gouda MM, Ezz El Din MM, Sweed HS, El Akkad RM. Impact of Androgen Deprivation Therapy on Cognitive Function of Elderly Men With Prostate Cancer. Cureus 2024; 16:e69303. [PMID: 39398693 PMCID: PMC11470978 DOI: 10.7759/cureus.69303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/12/2024] [Indexed: 10/15/2024] Open
Abstract
Background Prostate cancer affects millions of men worldwide. Androgen deprivation therapy is the most prescribed medication for elderly men with prostatic cancer to slow and suppress the disease progression. Androgen deprivation therapy works on decreasing testosterone levels, and that can cause multiple side effects, including potential cognitive affection in the form of accelerating cognitive aging and potentially increasing the risk of dementia. This study is aimed at evaluating the impact of androgen deprivation therapy on the cognitive function of elderly men recently diagnosed with prostate cancer. Methods The current research is a prospective cohort study conducted on 85 elderly patients recently diagnosed with prostate cancer who are about to start androgen deprivation therapy within two weeks of the diagnosis. These patients were recruited from the oncology and geriatrics outpatient clinics of Ain Shams University hospitals and were followed up on androgen deprivation therapy for at least six months. Cognitive and depression assessments were done using the Montreal Cognitive Assessment Test and Montreal Cognitive Assessment Test-Basic (according to their education) and the Patient Health Questionnaire-9. The cases were assessed at the start, after two months, and after six months of androgen deprivation therapy use. Cognitively impaired or depressed patients were excluded at the beginning of the study. Results This study showed that 49 out of 85 (57.6%) of the studied participants had a lower Montreal cognitive assessment test score average after six months, indicating mild cognitive impairment. Cognitive domains such as visuospatial, language, and attention were affected. About one-third of the participants were diagnosed with depression after six months of the androgen deprivation therapy. All the depressed participants had cognitive impairment. Conclusion The use of androgen deprivation therapy carries the risk of cognitive decline and regression of some of the cognitive domains such as language, visuospatial, attention, and depression in the elderly with recently diagnosed prostate cancer who received ADT for six months. Conversely, depression could not be linked to cognitive decline. Further research should continue exploring the relationship between cognitive decline and ADT and seek strategies to mitigate these effects, ensuring comprehensive patient care targeting cognitive and psychological well-being.
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Affiliation(s)
| | - Mohamed M Gouda
- Geriatrics, Faculty of Medicine, Ain Shams University Hospitals, Cairo, EGY
| | - Mai M Ezz El Din
- Clinical Oncology, Faculty of Medicine, Ain Shams University Hospitals, Cairo, EGY
| | - Hala S Sweed
- Geriatrics, Faculty of Medicine, Ain Shams University Hospitals, Cairo, EGY
| | - Rania M El Akkad
- Geriatrics, Faculty of Medicine, Ain Shams University Hospitals, Cairo, EGY
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Kolahchi Z, Henkel N, Eladawi MA, Villarreal EC, Kandimalla P, Lundh A, McCullumsmith RE, Cuevas E. Sex and Gender Differences in Alzheimer's Disease: Genetic, Hormonal, and Inflammation Impacts. Int J Mol Sci 2024; 25:8485. [PMID: 39126053 PMCID: PMC11313277 DOI: 10.3390/ijms25158485] [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] [Received: 04/16/2024] [Revised: 07/26/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024] Open
Abstract
Two-thirds of Americans with Alzheimer's disease are women, indicating a profound variance between the sexes. Variances exist between the sexes in the age and intensity of the presentation, cognitive deficits, neuroinflammatory factors, structural and functional brain changes, as well as psychosocial and cultural circumstances. Herein, we summarize the existing evidence for sexual dimorphism and present the available evidence for these distinctions. Understanding these complexities is critical to developing personalized interventions for the prevention, care, and treatment of Alzheimer's disease.
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Affiliation(s)
- Zahra Kolahchi
- Department of Neurology, Mitchell Center for Neurodegenerative Diseases, School of Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA; (Z.K.); (E.C.V.)
| | - Nicholas Henkel
- Department of Neurosciences and Neurological Disorders, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH 43614, USA; (N.H.); (M.A.E.); (P.K.); (A.L.); (R.E.M.)
| | - Mahmoud A. Eladawi
- Department of Neurosciences and Neurological Disorders, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH 43614, USA; (N.H.); (M.A.E.); (P.K.); (A.L.); (R.E.M.)
| | - Emma C. Villarreal
- Department of Neurology, Mitchell Center for Neurodegenerative Diseases, School of Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA; (Z.K.); (E.C.V.)
| | - Prathik Kandimalla
- Department of Neurosciences and Neurological Disorders, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH 43614, USA; (N.H.); (M.A.E.); (P.K.); (A.L.); (R.E.M.)
| | - Anna Lundh
- Department of Neurosciences and Neurological Disorders, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH 43614, USA; (N.H.); (M.A.E.); (P.K.); (A.L.); (R.E.M.)
| | - Robert E. McCullumsmith
- Department of Neurosciences and Neurological Disorders, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH 43614, USA; (N.H.); (M.A.E.); (P.K.); (A.L.); (R.E.M.)
- ProMedica Neurosciences Center, Toledo, OH 43606, USA
| | - Elvis Cuevas
- Department of Neurology, Mitchell Center for Neurodegenerative Diseases, School of Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA; (Z.K.); (E.C.V.)
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Cui MF, Chen LM, Jiang C, Ma BZ, Yuan FW, Zhao C, Liu SM. Risks associated with cognitive function and management strategies in the clinical use of ADT: a systematic review from clinical and preclinical studies. Support Care Cancer 2024; 32:561. [PMID: 39085696 DOI: 10.1007/s00520-024-08753-3] [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] [Received: 01/17/2024] [Accepted: 07/20/2024] [Indexed: 08/02/2024]
Abstract
Prostate cancer is one of the most common malignancies and a leading cause of death in men. Owing to its excellent anti-tumor effects, androgen deprivation therapy (ADT) is widely used in the treatment of prostate cancer. However, its use is controversial because of its potential for inducing cognitive decline. In this review, we summarized the findings of preclinical and clinical studies investigating the effects of ADT on cognitive function in prostate cancer. We discussed the methods used to assess cognitive function in these studies, elucidated the mechanisms through which ADT affects cognitive function, and highlighted recent advancements in cognitive assessment methods. The findings of this review serve as a valuable reference for examining the relationship between ADT and cognitive function in future studies. Besides, the findings may help clinicians understand the advantages and disadvantages of ADT and optimize the treatment plan so as to minimize the adverse effects of ADT.
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Affiliation(s)
- Meng-Fan Cui
- Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, No, China
| | - Li-Ming Chen
- Yueyang Hospital of Integrated Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No.110 Ganhe Road, Shanghai, 200437, China
| | - Cindy Jiang
- Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, No, China
| | - Bing-Zhe Ma
- Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, No, China
| | - Fu-Wen Yuan
- Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, No, China
| | - Chen Zhao
- Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, No, China.
| | - Shi-Min Liu
- Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, No, China.
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Pembroke L, Sherman KA, Dhillon HM, Francis H, Gurney H, Gillatt D. What is the nature and impact of cognitive difficulties following hormonal treatments for prostate cancer?: An interpretative phenomenological analysis. Support Care Cancer 2024; 32:534. [PMID: 39037597 PMCID: PMC11263254 DOI: 10.1007/s00520-024-08749-z] [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] [Received: 03/21/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
OBJECTIVE Prostate cancer hormonal treatments (e.g. androgen deprivation therapy) yield clinical benefits. However, there is increasing evidence these treatments may adversely impact cognitive functioning. This study aimed to qualitatively characterise the nature and impact of cognitive difficulties following these treatments. METHODS Prostate cancer survivors (PCS) self-reporting cognitive difficulties following hormonal treatments (via an online survey) and their partners were invited to participate in semi-structured interviews. Telephone or videoconferencing interviews were conducted, then transcribed, double-coded and analysed using the Framework Method, following the principles of Interpretative Phenomenological Analysis. RESULTS Eleven participants (six PCS and five partners) were interviewed. PCS reported a range of cognitive difficulties, verified by their partners, including forgetfulness, "fogginess", fatigue and slowed processing speed. For some PCS, word-finding difficulties, tangential speech and memory problems were apparent during interviews. The aetiology of the reported cognitive difficulties was unclear as it was attributed to a possible combination of cancer treatments, compounding side-effects (e.g. fatigue, sleep problems, hot flashes), exacerbation of pre-existing conditions and/or age-related changes. Cognitive difficulties were reported to have led to shifts in self-perception, interpersonal dynamics and increased emotionality. Engagement in cognitively-stimulating activities and reliance on compensatory strategies were reported to be helpful in managing some cognitive difficulties. All participants endorsed the potential benefits of neuropsychological intervention. CONCLUSIONS There are a diverse range of cognitive difficulties following hormonal treatments for prostate cancer experienced by PCS and their partners. Understanding the impact of these difficulties is important for the development of targeted neuropsychological interventions.
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Affiliation(s)
- Lorna Pembroke
- Lifespan Health and Wellbeing Research Centre, Macquarie University, 2109, Sydney, NSW, Australia.
- School of Psychological Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University & Macquarie University Hospital, 2109, Sydney, NSW, Australia.
| | - Kerry A Sherman
- Lifespan Health and Wellbeing Research Centre, Macquarie University, 2109, Sydney, NSW, Australia
- School of Psychological Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University & Macquarie University Hospital, 2109, Sydney, NSW, Australia
| | - Haryana M Dhillon
- Centre for Medical Psychology and Evidence-Based Decision-Making, School of Psychology, Faculty of Science, University of Sydney, 2006, Sydney, NSW, Australia
- Psycho-Oncology Cooperative Research Group, School of Psychology, Faculty of Science, University of Sydney, 2006, Sydney, NSW, Australia
| | - Heather Francis
- School of Psychological Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University & Macquarie University Hospital, 2109, Sydney, NSW, Australia
| | - Howard Gurney
- Macquarie University Clinical Trials Unit (CTU), Faculty of Medicine and Health Sciences, Macquarie University & Macquarie University Hospital, 2109, Sydney, NSW, Australia
| | - David Gillatt
- Macquarie University Urology Clinic, Faculty of Medicine and Health Sciences, Macquarie University & Macquarie University Hospital, 2109, Macquarie Park, NSW, Australia
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Boué A, Joly F, Lequesne J, Lange M. Does hormone therapy impact cognition in patients with prostate cancer? A systematic review and meta-analysis. Cancer 2024; 130:2120-2138. [PMID: 38306301 DOI: 10.1002/cncr.35210] [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: 10/04/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 02/04/2024]
Abstract
BACKGROUND Hormone therapy, which is widely prescribed for prostate cancer, might induce cognitive impairment and affect the autonomy of elderly patients. However, previous studies provided conflicting results. The aim of this systematic review and meta-analysis was to synthesize the longitudinal impact of hormone therapy on objective (cognitive tests) and subjective (questionnaires) cognition. METHODS A search was performed of the PubMed, Web of Science, and PsycINFO databases. Studies that longitudinally assessed cognition in patients undergoing androgen-deprivation therapy and new-generation hormone therapy were considered. To perform a meta-analysis, available scores were aggregated and classified into six objective domains and one subjective domain. Weighted mean effect sizes were computed using a random effect model. RESULTS Twenty studies were included in the systematic review (1440 patients), and 15 could be included in the meta-analysis (1093 patients). In the systematic review, 20%-50% of patients had objective cognitive impairment before treatment initiation. The meta-analysis revealed a decline in subjective cognition (g = -0.44; p = .03) with androgen-deprivation therapy and new-generation hormone therapy. All other effect sizes were small (from g = -0.02 to g = 0.18), and none of them indicated a significant decline in objective cognition. Significant heterogeneity was observed in all domains of objective cognition. CONCLUSIONS This synthesis presents the first meta-analytic evidence of the negative impact of androgen-deprivation therapy and new-generation hormone therapy on subjective cognition. In contrast, there was no conclusive evidence of a decline in objective cognition. The high heterogeneity underscores the need for homogeneous cognitive research on prostate cancer. PLAIN LANGUAGE SUMMARY There is no consensus on the cognitive impairment induced by hormone therapy for prostate cancer, despite the implications for patients' care and daily life. This synthesis of published studies demonstrated an increase in perceived cognitive difficulties but did not prove a decline in cognitive performance during treatment.
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Affiliation(s)
- Antoine Boué
- INSERM 1086 Anticipe, UniCaen, Normandie University, Caen, France
| | - Florence Joly
- INSERM 1086 Anticipe, UniCaen, Normandie University, Caen, France
- Clinical Research Department, Baclesse Center, Caen, France
- Cancer and Cognition Platform, National League Against Cancer, Caen, France
| | - Justine Lequesne
- Clinical Research Department, Baclesse Center, Caen, France
- Cancer and Cognition Platform, National League Against Cancer, Caen, France
| | - Marie Lange
- INSERM 1086 Anticipe, UniCaen, Normandie University, Caen, France
- Clinical Research Department, Baclesse Center, Caen, France
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Pergolizzi D, Flaherty KR, Saracino RM, Root JC, Schofield E, Cassidy C, Katheria V, Patel SK, Dale W, Nelson CJ. Cognitive effects of long-term androgen deprivation therapy in older men with prostate cancer. Psychooncology 2024; 33:e6336. [PMID: 38520472 PMCID: PMC11151215 DOI: 10.1002/pon.6336] [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] [Received: 07/15/2023] [Revised: 03/03/2024] [Accepted: 03/14/2024] [Indexed: 03/25/2024]
Abstract
OBJECTIVE Androgen deprivation therapy (ADT) is a common treatment for prostate cancer (PCa), with increasing numbers of men on ADT for longer. Limited evidence suggests ADT impacts cognition. This study addressed gaps in the literature by focusing on older men with PCa and assessing ADT usage longer than 1 year. METHODS This study of 133 men ≥65 years of age with PCa included two groups: (1) men on ADT for 1-3 years (ADT-exposed), and (2) a comparison group of men with PCa not on ADT (ADT-unexposed). Group comparisons on individual neuropsychological test scores are reported, as well as effect sizes (Cohen's d). RESULTS Half (n = 67) of the sample was ADT-exposed and half (n = 66) were unexposed. The average age was 72 years, most were White, and over 50% had at least secondary education. There were no statistically significant differences between groups by age, race, or education. Unadjusted analyses showed the ADT-exposed group, compared with the ADT-unexposed group, performed significantly lower in domains of verbal learning (d = 0.45-0.52, p = 0.01 to <0.01), verbal recall (d = 0.33-0.54, p = 0.06 to <0.01), and possible effects in visuospatial construction (d = 0.33, p = 0.08 to 0.06). When controlling for age and education, similar patterns emerged. The ADT exposed-group performed significantly lower in domains of verbal learning (d = 0.45-0.52, p = 0.06 to 0.03) and verbal recall (d = 0.33-0.54, p = 0.11 to 0.03), and possible effects in visuospatial construction d = 0.33, p = 0.18 to 0.13. CONCLUSIONS This study suggests long-term ADT exposure impacts verbal learning, verbal recall, and possibly visuospatial abilities in older men (≥65) with PCa. The potential cognitive effects of ADT should be discussed with older patients considering long-term use of ADT.
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Affiliation(s)
- Denise Pergolizzi
- School of Medicine and Health Sciences, Universitat Internacional de Catalunya (UIC), Josep Trueta, s/n, 08195 Sant Cugat del Vallès, Barcelona, Spain
| | - Kathleen R. Flaherty
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10017
| | - Rebecca M. Saracino
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10017
| | - James C. Root
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10017
| | - Elizabeth Schofield
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10017
| | - Caroline Cassidy
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10017
| | - Vani Katheria
- City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Sunita K. Patel
- City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - William Dale
- City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Christian J. Nelson
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10017
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Neerhut T, Shin BNH, Rhee H, Chung E. A review of the objective cognitive function measurements in males receiving hormonal therapy for prostate cancer. Investig Clin Urol 2023; 64:521-540. [PMID: 37932563 PMCID: PMC10630686 DOI: 10.4111/icu.20230103] [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: 03/18/2023] [Revised: 06/26/2023] [Accepted: 08/21/2023] [Indexed: 11/08/2023] Open
Abstract
PURPOSE Prostate cancer (PC) is more common in the older population and the use of hormonal therapy in PC can increase medical frailty and cognitive decline. This narrative review examines the impact of androgen deprivation therapies (ADTs) and next-generational hormonal therapies (NGHT) on cognitive function outcomes amongst patients with hormone-sensitive or castrate-resistant PC. MATERIALS AND METHODS Six electronic databases were searched from January 2000 to June 2022 for quantitative studies to evaluate the impacts of hormonal therapies (ADT, combined androgen blockade, and NGHT) on cognitive functions in men with PC. RESULTS Of the 36 studies identified, 20 studies reported no effect of hormonal therapies on any cognitive domain while 16 studies found possible declines in at least one domain. The domains assessed were highly variable and objective assessment measurements were not standardized or widely adopted. While the results have been inconsistent, a relationship between declining androgen levels and poorer performances in the visuospatial and visual memory domains has been highlighted. It was not possible to distinguish the degree of cognitive parameter changes between the populations of hormone-sensitive and castrate-resistant PC. CONCLUSIONS While the exact impact of ADT and NGHT on cognitive function in men with PC remains controversial, appropriate care should be undertaken especially in older and frail individuals, specifically in those with progressive or established visuospatial or visual memory deficits.
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Affiliation(s)
- Thomas Neerhut
- Department of Urology, Princess Alexandra Hospital Brisbane QLD Australia, The University of Queensland, Brisbane, QLD, Australia
| | - Brian Ng Hung Shin
- Department of Urology, Princess Alexandra Hospital Brisbane QLD Australia, The University of Queensland, Brisbane, QLD, Australia
| | - Handoo Rhee
- Department of Urology, Princess Alexandra Hospital Brisbane QLD Australia, The University of Queensland, Brisbane, QLD, Australia
| | - Eric Chung
- Department of Urology, Princess Alexandra Hospital Brisbane QLD Australia, The University of Queensland, Brisbane, QLD, Australia
- AndroUrology Centre, Brisbane, QLD, Australia.
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Pierro MJ, Kilari D. The Confusion Surrounding Androgen Deprivation Therapy and Cognitive Dysfunction. Eur Urol Focus 2023; 9:409-410. [PMID: 37005166 DOI: 10.1016/j.euf.2023.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/08/2023] [Indexed: 04/03/2023]
Abstract
There are varied associations that have been identified between the use of androgen deprivation therapy (ADT) and the development of cognitive decline. We highlight the first studies to evaluate chronic use of ADT, other systemic treatments for prostate cancer, and genetic polymorphisms in this context.
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Affiliation(s)
- Michael J Pierro
- Division of Hematology/Oncology, Department of Internal Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.
| | - Deepak Kilari
- Division of Hematology/Oncology, Department of Internal Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
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Fleming B, Edison P, Kenny L. Cognitive impairment after cancer treatment: mechanisms, clinical characterization, and management. BMJ 2023; 380:e071726. [PMID: 36921926 DOI: 10.1136/bmj-2022-071726] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Cognitive impairment is a debilitating side effect experienced by patients with cancer treated with systemically administered anticancer therapies. With around 19.3 million new cases of cancer worldwide in 2020 and the five year survival rate growing from 50% in 1970 to 67% in 2013, an urgent need exists to understand enduring side effects with severe implications for quality of life. Whereas cognitive impairment associated with chemotherapy is recognized in patients with breast cancer, researchers have started to identify cognitive impairment associated with other treatments such as immune, endocrine, and targeted therapies only recently. The underlying mechanisms are diverse and therapy specific, so further evaluation is needed to develop effective therapeutic interventions. Drug and non-drug management strategies are emerging that target mechanistic pathways or the cognitive deficits themselves, but they need to be rigorously evaluated. Clinically, consistent use of objective diagnostic tools is necessary for accurate diagnosis and clinical characterization of cognitive impairment in patients treated with anticancer therapies. This should be supplemented with clinical guidelines that could be implemented in daily practice. This review summarizes the recent advances in the mechanisms, clinical characterization, and novel management strategies of cognitive impairment associated with treatment of non-central nervous system cancers.
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Affiliation(s)
- Ben Fleming
- Department of Brain Sciences, Faculty of Medicine, Imperial College London, London, UK
| | - Paul Edison
- Department of Brain Sciences, Faculty of Medicine, Imperial College London, London, UK
- College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
| | - Laura Kenny
- Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
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A Systematic Review on the Potential Acceleration of Neurocognitive Aging in Older Cancer Survivors. Cancers (Basel) 2023; 15:cancers15041215. [PMID: 36831557 PMCID: PMC9954467 DOI: 10.3390/cancers15041215] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 02/17/2023] Open
Abstract
As survival rates increase, more emphasis has gone to possible cognitive sequelae in older cancer patients, which could be explained by accelerated brain aging. In this review, we provide a complete overview of studies investigating neuroimaging, neurocognitive, and neurodegenerative disorders in older cancer survivors (>65 years), based on three databases (Pubmed, Web of Science and Medline). Ninety-six studies were included. Evidence was found for functional and structural brain changes (frontal regions, basal ganglia, gray and white matter), compared to healthy controls. Cognitive decline was mainly found in memory functioning. Anti-hormonal treatments were repeatedly associated with cognitive decline (tamoxifen) and sometimes with an increased risk of Alzheimer's disease (androgen deprivation therapy). Chemotherapy was inconsistently associated with later development of cognitive changes or dementia. Radiotherapy was not associated with cognition in patients with non-central nervous system cancer but can play a role in patients with central nervous system cancer, while neurosurgery seemed to improve their cognition in the short-term. Individual risk factors included cancer subtypes (e.g., brain cancer, hormone-related cancers), treatment (e.g., anti-hormonal therapy, chemotherapy, cranial radiation), genetic predisposition (e.g., APOE, COMT, BDNF), age, comorbidities (e.g., frailty, cognitive reserve), and psychological (e.g., depression, (post-traumatic) distress, sleep, fatigue) and social factors (e.g., loneliness, limited caregiver support, low SES). More research on accelerated aging is required to guide intervention studies.
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Mielke MM, Aggarwal NT, Vila‐Castelar C, Agarwal P, Arenaza‐Urquijo EM, Brett B, Brugulat‐Serrat A, DuBose LE, Eikelboom WS, Flatt J, Foldi NS, Franzen S, Gilsanz P, Li W, McManus AJ, van Lent DM, Milani SA, Shaaban CE, Stites SD, Sundermann E, Suryadevara V, Trani J, Turner AD, Vonk JMJ, Quiroz YT, Babulal GM. Consideration of sex and gender in Alzheimer's disease and related disorders from a global perspective. Alzheimers Dement 2022; 18:2707-2724. [PMID: 35394117 PMCID: PMC9547039 DOI: 10.1002/alz.12662] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/15/2022] [Accepted: 02/20/2022] [Indexed: 01/31/2023]
Abstract
Sex or gender differences in the risk of Alzheimer's disease and related dementias (ADRD) differ by world region, suggesting that there are potentially modifiable risk factors for intervention. However, few epidemiological or clinical ADRD studies examine sex differences; even fewer evaluate gender in the context of ADRD risk. The goals of this perspective are to: (1) provide definitions of gender, biologic sex, and sexual orientation. and the limitations of examining these as binary variables; (2) provide an overview of what is known with regard to sex and gender differences in the risk, prevention, and diagnosis of ADRD; and (3) discuss these sex and gender differences from a global, worldwide perspective. Identifying drivers of sex and gender differences in ADRD throughout the world is a first step in developing interventions unique to each geographical and sociocultural area to reduce these inequities and to ultimately reduce global ADRD risk. HIGHLIGHTS: The burden of dementia is unevenly distributed geographically and by sex and gender. Scientific advances in genetics and biomarkers challenge beliefs that sex is binary. Discrimination against women and sex and gender minority (SGM) populations contributes to cognitive decline. Sociocultural factors lead to gender inequities in Alzheimer's disease and related dementias (ADRD) worldwide.
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Affiliation(s)
- Michelle M. Mielke
- Division of Epidemiology, Department of Quantitative Health SciencesMayo ClinicRochesterMinnesotaUSA
- Department of NeurologyMayo ClinicRochesterMinnesotaUSA
| | - Neelum T. Aggarwal
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
| | - Clara Vila‐Castelar
- Department of Psychiatry, Harvard Medical SchoolMassachusetts General HospitalMassachusettsBostonUSA
| | - Puja Agarwal
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
- Department of Internal MedicineRush University Medical CenterChicagoIllinoisUSA
| | - Eider M. Arenaza‐Urquijo
- Barcelonaβeta Brain Research Center (BBRC)Pasqual Maragall FoundationBarcelonaSpain
- IMIM (Hospital del Mar Medical Research Institute)BarcelonaSpain
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES)MadridSpain
| | - Benjamin Brett
- Department of NeurosurgeryMedical College of WisconsinWisconsinMilwaukeeUSA
| | - Anna Brugulat‐Serrat
- Barcelonaβeta Brain Research Center (BBRC)Pasqual Maragall FoundationBarcelonaSpain
- IMIM (Hospital del Mar Medical Research Institute)BarcelonaSpain
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES)MadridSpain
- Atlantic Fellow for Equity in Brain HealthThe University of California San FranciscoSan FranciscoCaliforniaUSA
| | - Lyndsey E. DuBose
- Department of Medicine, Division of GeriatricsUniversity of Colorado Anschutz Medical CampusAuroraColoradoUSA
| | - Willem S. Eikelboom
- Department of NeurologyErasmus MC University Medical CenterRotterdamThe Netherlands
| | - Jason Flatt
- Social and Behavioral Health Program, School of Public HealthUniversity of Nevada, Las VegasLas VegasNevadaUSA
| | - Nancy S. Foldi
- Department of Psychology, Queens College and The Graduate CenterCity University of New YorkNew YorkUSA
- Department of PsychiatryNew York University Long Island School of MedicineNew YorkUSA
| | - Sanne Franzen
- Department of NeurologyErasmus MC University Medical CenterRotterdamThe Netherlands
| | - Paola Gilsanz
- Kaiser Permanente Division of ResearchOaklandCaliforniaUSA
| | - Wei Li
- Department of Clinical and Diagnostic SciencesUniversity of Alabama at BirminghamBirminghamAlabamaUSA
| | - Alison J. McManus
- Department of NeurologyMassachusetts General HospitalBostonMassachusettsUSA
| | - Debora Melo van Lent
- UT Health San AntonioGlenn Biggs Institute for Alzheimer's and Neurodegenerative diseasesSan AntonioTexasUSA
- Framingham Heart StudyFraminghamMassachusettsUSA
- Department of NeurologyBoston University School of MedicineBostonMassachusettsUSA
| | - Sadaf Arefi Milani
- Division of Geriatrics & Palliative Medicine, Department of Internal MedicineUniversity of Texas Medical BranchGalvestonTexasUSA
| | - C. Elizabeth Shaaban
- Department of EpidemiologyGraduate School of Public HealthUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Shana D. Stites
- Department of PsychiatryPerlman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Erin Sundermann
- Department of PsychiatryUniversity of CaliforniaSan DiegoCaliforniaUSA
| | - Vidyani Suryadevara
- Department of Orthopedic SurgeryRush University Medical CenterChicagoIllinoisUSA
| | - Jean‐Francoise Trani
- Department of Public HealthWashington University in St. LouisSt. LouisMissouriUSA
| | - Arlener D. Turner
- Department of Psychiatry & Behavioral SciencesUniversity of Miami Miller School of MedicineMiamiFloridaUSA
| | - Jet M. J. Vonk
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
- Julius Center for Health Sciences and Primary CareDepartment of EpidemiologyUniversity Medical Center Utrecht and Utrecht UniversityUtrechtThe Netherlands
| | - Yakeel T. Quiroz
- Department of Psychiatry, Harvard Medical SchoolMassachusetts General HospitalMassachusettsBostonUSA
- Grupo de Neurociencias de Antioquia of Universidad de AntioquiaMedellinColumbiaUSA
| | - Ganesh M. Babulal
- Department of NeurologyWashington University in St. LouisSt. LouisMississippiUSA
- Department of Clinical Research and LeadershipThe George Washington University School of Medicine and Health SciencesWashingtonDCUSA
- Department of Psychology, Faculty of HumanitiesUniversity of JohannesburgJohannesburgSouth Africa
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13
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Beer TM, Shore N, Morgans A, Winters‐Stone K, Wefel JS, George DJ. Functional impact of androgen-targeted therapy on patients with castration-resistant prostate cancer. BJUI COMPASS 2022; 3:424-433. [PMID: 36267196 PMCID: PMC9579880 DOI: 10.1002/bco2.179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 05/25/2022] [Accepted: 06/12/2022] [Indexed: 12/05/2022] Open
Abstract
Context Second-generation androgen receptor inhibitors (ARIs) extend metastasis-free survival, prolong overall survival, and delay symptoms when added to androgen deprivation therapy for the treatment of castration-sensitive or castration-resistant prostate cancer (CRPC). However, ARIs may adversely impact physical and cognitive function, thereby decreasing quality of life and prognosis. Objective To evaluate the evidence regarding the potential effects of ARIs on physical and cognitive function and to contextualize how drug-related adverse effects may influence treatment decisions in CRPC. Evidence acquisition We performed a literature search using MEDLINE from January 1998 to June 2020 using terms relating to prostate cancer, androgen deprivation, and physical and cognitive function. We selected 61 publications for analysis. Evidence synthesis Treatment-induced deterioration in physical and cognitive function may impair the independence and well-being of patients with CRPC. Patient-reported outcomes from clinical trials of ARIs provide quantitative evidence of their impact on these domains, which appears to vary between ARIs, reflecting the different adverse event profiles of these agents. Thus, the risk of physical or cognitive dysfunction may be managed or mitigated by appropriate selection of treatment options. Studies in patients with CRPC have assessed the cognitive effects of ARIs with validated instruments, whereas quantitative analysis of the impact on physical function has been limited. Conclusion Several validated instruments utilized for the assessment of physical and cognitive function in clinical studies have been adapted for clinical practice; however, consensus on the standardization of these assessments is required. Future clinical studies employing validated tools may generate data on the impact of ARIs and guide treatment decisions for patients with CRPC. Patient summary We review the hormonal therapies used to treat men with prostate cancer and the effects they have on physical and cognitive function. We discuss how to measure these effects and how this may assist when choosing treatment.
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Affiliation(s)
- Tomasz M. Beer
- Oregon Health and Science UniversityKnight Cancer InstitutePortlandOregonUSA
| | - Neal Shore
- Carolina Urologic Research CenterMyrtle BeachSouth CarolinaUSA
| | | | - Kerri Winters‐Stone
- Oregon Health and Science UniversityKnight Cancer InstitutePortlandOregonUSA
| | - Jeffrey S. Wefel
- The University of Texas MD Anderson Cancer CenterHoustonTexasUSA
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14
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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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15
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Кузнецов КО, Хайдарова РР, Хабибуллина РХ, Стыценко ЕС, Философова ВИ, Нуриахметова ИР, Хисамеева ЭМ, Важоров ГС, Хайбуллин ФР, Иванова ЕА, Горбатова КВ. [Testosterone and Alzheimer's disease]. PROBLEMY ENDOKRINOLOGII 2022; 68:97-107. [PMID: 36337024 PMCID: PMC9762454 DOI: 10.14341/probl13136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 06/24/2022] [Indexed: 11/09/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease that causes dementia in half of the cases. Asthma is usually found in people over 65 years of age. The etiopathogenesis of the disease is multifactorial and includes genetic factors, nutritional disorders, mitochondrial dysfunction, oxidative stress, and aging. Sex hormones have an important influence on the development of AD, as evidenced by a higher incidence in women than in men. Considering the significant influence of T on the maintenance of normal brain function, the present study is aimed at evaluating the impact of androgen deprivation therapy (ADT), as well as testosterone therapy, on the risk of AD development and progression. Although there is some clinical inconsistency between studies, androgens have a significant effect on brain function and are beneficial for AD patients. Low levels of circulating androgens should be considered as a significant risk factor for the development of AD and memory loss. With a reduced level of T in the plasma of men, its administration improves cognitive performance and memory, treatment should be started at an early stage of the disease. In men and women with AD, androgens improve mental state and slow the progression of the disease, providing a protective effect. In the future, it is necessary to conduct studies on a large population, taking into account personality factors and a more specific approach to assessing cognitive functions and the causal relationship of T administration in AD.
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Affiliation(s)
- К. О. Кузнецов
- Российский национальный исследовательский медицинский университет им. Н.И. Пирогова
| | | | - Р. Х. Хабибуллина
- Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова
| | - Е. С. Стыценко
- Санкт-Петербургский государственный педиатрический медицинский университет
| | - В. И. Философова
- Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова
| | | | | | - Г. С. Важоров
- Чувашский государственный университет им. И.Н. Ульянова
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16
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Chaudhary S, Roy A, Summers C, Zhornitsky S, Ahles T, Li CSR, Chao HH. Hypothalamic connectivities predict individual differences in ADT-elicited changes in working memory and quality of life in prostate cancer patients. Sci Rep 2022; 12:9567. [PMID: 35688928 PMCID: PMC9187668 DOI: 10.1038/s41598-022-13361-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/24/2022] [Indexed: 11/09/2022] Open
Abstract
Androgen deprivation therapy (ADT) has been associated with adverse effects on cognition. However, we currently lack understanding of the neurobiology and prognostic markers of these effects. Given that ADT acts via the hypothalamus-pituitary-gonadal axis, we assessed whether baseline hypothalamic resting state functional connectivity (rsFC) could predict changes in working memory and quality of life in prostate cancer patients following androgen deprivation. In a prospective observational study, 28 men with non-metastatic prostate cancer receiving ADT and 38 patients not receiving ADT (controls), matched in age, years of education and Montreal Cognitive Assessment score, participated in brain imaging at baseline, and N-back task and quality-of-life (QoL) assessments at baseline and at 6 months follow-up. Imaging data were processed with published routines and evaluated at a corrected threshold. ADT and control groups did not differ in N-back performance or QoL across time points. In ADT, the changes in 0-back correct response rate (follow-up-baseline) were correlated with baseline hypothalamus-precentral gyrus rsFC; the changes in 1-back correct response rate and reaction time were each correlated with hypothalamus-middle frontal gyrus and superior parietal lobule rsFC. The changes in physical well-being subscore of QoL were correlated with baseline hypothalamus-anterior cingulate and cuneus rsFC. The hypothalamus rsFCs predicted N-back and QoL change with an area under the receiver operating characteristic curve of 0.93 and 0.73, respectively. Baseline hypothalamus-frontoparietal and salience network rsFC's predict inter-subject variations in the changes in working-memory and QoL following 6 months of ADT. Whether and how hypothalamic rsFCs may predict the cognitive and QoL effects with longer-term ADT remain to be investigated.
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Affiliation(s)
- Shefali Chaudhary
- Department of Psychiatry, Yale University School of Medicine, CMHC S110, 34 Park Street, New Haven, CT, 06519, USA.
| | - Alicia Roy
- Cancer Center, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA
| | - Christine Summers
- Cancer Center, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA
| | - Simon Zhornitsky
- Department of Psychiatry, Yale University School of Medicine, CMHC S110, 34 Park Street, New Haven, CT, 06519, USA
| | - Tim Ahles
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Chiang-Shan R Li
- Department of Psychiatry, Yale University, New Haven, CT, 06520, USA
- Department of Neuroscience, Yale University, New Haven, CT, 06520, USA
- Interdepartmental Neuroscience Program, Yale University School of Medicine, Yale University, New Haven, CT, 06520, USA
- Wu Tsai Institute, Yale University, New Haven, CT, 06520, USA
| | - Herta H Chao
- Cancer Center, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA.
- Department of Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, 06519, USA.
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17
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Bianchi VE. Impact of Testosterone on Alzheimer's Disease. World J Mens Health 2022; 40:243-256. [PMID: 35021306 PMCID: PMC8987133 DOI: 10.5534/wjmh.210175] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/16/2021] [Accepted: 09/23/2021] [Indexed: 11/15/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disease responsible for almost half of all dementia cases in the world and progressively increasing. The etiopathology includes heritability, genetic factors, aging, nutrition, but sex hormones play a relevant role. Animal models demonstrated that testosterone (T) exerted a neuroprotective effect reducing the production of amyloid-beta (Aβ), improving synaptic signaling, and counteracting neuronal death. This study aims to evaluate the impact of T deprivation and T administration in humans on the onset of dementia and AD. A search was conducted on MEDLINE and Scopus for the “androgen deprivation therapy” and “testosterone therapy” with “dementia” and “Alzheimer’s.” Studies lasting twenty years with low risk of bias, randomized clinical trial, and case-controlled studies were considered. Twelve articles on the effect of androgen deprivation therapy (ADT) and AD and seventeen on T therapy and AD were retrieved. Men with prostate cancer under ADT showed a higher incidence of dementia and AD. The effect of T administration in hypogonadal men with AD and cognitive impairment has evidenced some positive results. The majority of studies showed the T administration improved memory and cognition in AD while others did not find any benefit. Although some biases in the studies are evident, T therapy for AD patients may represent an essential clinical therapy to reduce dementia incidence and AD progression. However, more specific case-controlled trials on the effect of androgens therapy in men and women to reducing the onset of AD are necessary.
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Affiliation(s)
- Vittorio Emanuele Bianchi
- Department of Endocrinology and Metabolism, Clinical Research Center Stella Maris, Falciano, San Marino, Italy.
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18
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Assessment and Management of Cognitive Function in Patients with Prostate Cancer Treated with Second-Generation Androgen Receptor Pathway Inhibitors. CNS Drugs 2022; 36:419-449. [PMID: 35522374 PMCID: PMC9073450 DOI: 10.1007/s40263-022-00913-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/07/2022] [Indexed: 11/17/2022]
Abstract
Preservation of cognitive function is an important outcome in oncology. Optimal patient management requires an understanding of cognitive effects of the disease and its treatment and an efficacious approach to assessment and management of cognitive dysfunction, including selection of treatments to minimize the risk of cognitive impairment. Awareness is increasing of the potentially detrimental effects of cancer-related cognitive dysfunction on functional independence and quality of life. Prostate cancer occurs most often in older men, who are more likely to develop cognitive dysfunction than younger individuals; this population may be particularly vulnerable to treatment-related cognitive disorders. Prompt identification of treatment-induced cognitive dysfunction is a crucial aspect of effective cancer management. We review the potential etiologies of cognitive decline in patients with prostate cancer, including the potential role of androgen receptor pathway inhibitors; commonly used tools for assessing cognitive function validated in metastatic castration-resistant prostate cancer and adopted in non-metastatic castration-resistant prostate cancer trials; and strategies for management of cognitive symptoms. Many methods are currently used to assess cognitive function. The prevalence and severity of cognitive dysfunction vary according to the instruments and criteria applied. Consensus on the definition of cognitive dysfunction and on the most appropriate approaches to quantify its extent and progression in patients treated for prostate cancer is lacking. Evidence-based guidance on the appropriate tools and time to assess cognitive function in patients with prostate cancer is required.
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19
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Országhová Z, Mego M, Chovanec M. Long-Term Cognitive Dysfunction in Cancer Survivors. Front Mol Biosci 2022; 8:770413. [PMID: 34970595 PMCID: PMC8713760 DOI: 10.3389/fmolb.2021.770413] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/17/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer-related cognitive impairment (CRCI) is a frequent side effect experienced by an increasing number of cancer survivors with a significant impact on their quality of life. Different definitions and means of evaluation have been used in available literature; hence the exact incidence of CRCI remains unknown. CRCI can be described as cognitive symptoms reported by cancer patients in self-reported questionnaires or as cognitive changes evaluated by formal neuropsychological tests. Nevertheless, association between cognitive symptoms and objectively assessed cognitive changes is relatively weak or absent. Studies have focused especially on breast cancer patients, but CRCI has been reported in multiple types of cancer, including colorectal, lung, ovarian, prostate, testicular cancer and hematological malignancies. While CRCI has been associated with various treatment modalities, including radiotherapy, chemotherapy, hormone therapy and novel systemic therapies, it has been also detected prior to cancer treatment. Therefore, the effects of cancer itself with or without the psychological distress may be involved in the pathogenesis of CRCI as a result of altered coping mechanisms after cancer diagnosis. The development of CRCI is probably multifactorial and the exact mechanisms are currently not completely understood. Possible risk factors include administered treatment, genetic predisposition, age and psychological factors such as anxiety, depression or fatigue. Multiple mechanisms are suggested to be responsible for CRCI, including direct neurotoxic injury of systemic treatment and radiation while other indirect contributing mechanisms are hypothesized. Chronic neuroinflammation mediated by active innate immune system, DNA-damage or endothelial dysfunction is hypothesized to be a central mechanism of CRCI pathogenesis. There is increasing evidence of potential plasma (e.g., damage associated molecular patterns, inflammatory components, circulating microRNAs, exosomes, short-chain fatty acids, and others), cerebrospinal fluid and radiological biomarkers of cognitive dysfunction in cancer patients. Discovery of biomarkers of cognitive impairment is crucial for early identification of cancer patients at increased risk for the development of CRCI or development of treatment strategies to lower the burden of CRCI on long-term quality of life. This review summarizes current literature on CRCI with a focus on long-term effects of different cancer treatments, possible risk factors, mechanisms and promising biomarkers.
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Affiliation(s)
- Zuzana Országhová
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | - Michal Mego
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | - Michal Chovanec
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
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20
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Parsons MW, Peters KB, Floyd SR, Brown P, Wefel JS. Preservation of neurocognitive function in the treatment of brain metastases. Neurooncol Adv 2021; 3:v96-v107. [PMID: 34859237 PMCID: PMC8633744 DOI: 10.1093/noajnl/vdab122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Neurocognitive function (NCF) deficits are common in patients with brain metastases, occurring in up to 90% of cases. NCF deficits may be caused by tumor-related factors and/or treatment for the metastasis, including surgery, radiation therapy, chemotherapy, and immunotherapy. In recent years, strategies to prevent negative impact of treatments and ameliorate cognitive deficits for patients with brain tumors have gained momentum. In this review, we report on research that has established the efficacy of preventative and rehabilitative therapies for NCF deficits in patients with brain metastases. Surgical strategies include the use of laser interstitial thermal therapy and intraoperative mapping. Radiotherapy approaches include focal treatments such as stereotactic radiosurgery and tailored approaches such as hippocampal avoidant whole-brain radiotherapy (WBRT). Pharmacologic options include use of the neuroprotectant memantine to reduce cognitive decline induced by WBRT and incorporation of medications traditionally used for attention and memory problems. Integration of neuropsychology into the care of patients with brain metastases helps characterize cognitive patterns, educate patients and families regarding their management, and guide rehabilitative therapies. These and other strategies will become even more important for long-term survivors of brain metastases as treatment options improve.
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Affiliation(s)
- Michael W Parsons
- Pappas Center for Neuro-Oncology, Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Katherine B Peters
- Preston Robert Tisch Brain Tumor Center, Department of Neurosurgery, Duke University Medical Center, Durham, North Carolina, USA
| | - Scott R Floyd
- Department of Radiation Oncology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Paul Brown
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jeffrey S Wefel
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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21
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Garland SN, Savard J, Eisel SL, Wassersug RJ, Rockwood NJ, Thoms J, Jim HSL, Gonzalez BD. A 2-year prospective analysis of insomnia as a mediator of the relationship between androgen deprivation therapy and perceived cognitive function in men with prostate cancer. Cancer 2021; 127:4656-4664. [PMID: 34411294 DOI: 10.1002/cncr.33850] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/05/2021] [Accepted: 07/15/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Androgen deprivation therapy (ADT) may affect cognitive function in men with prostate cancer (PCa). This study examined whether insomnia symptoms mediate the relationship between ADT and perceived cognitive function and whether depressive symptoms, fatigue severity, and physical activity moderate the strength of this relationship. METHODS This was a prospective study of ADT recipients (n = 83) who were matched with control patients with PCa who were not on ADT (n = 92) and with controls with no history of cancer (n = 112) over a 2-year follow-up period. Perceived cognitive function and satisfaction were assessed with the Everyday Cognition Scale. Insomnia was assessed with the Insomnia Severity Index. Multilevel mediation analyses were conducted to estimate the indirect effect of ADT on perceived cognitive function through insomnia symptoms. Exploratory moderated mediation analyses assessed whether the indirect effect of ADT on perceived cognitive function through insomnia symptoms was dependent on levels of fatigue, depression, or physical activity. RESULTS Insomnia symptoms significantly mediated the relationship between receipt of ADT and perceived cognitive function (P < .001) and satisfaction with cognition (P < .001) after controlling for comorbidities. Men with greater fatigue had a more pronounced association of ADT with insomnia severity. Men with greater depressive symptoms had a stronger association between insomnia severity and worse perceived cognitive function. Physical activity was not a significant moderator of the relationship between ADT and perceived cognitive function. CONCLUSIONS Insomnia influenced the relationship between ADT and perceived cognitive abilities. Interventions to address insomnia, fatigue, and depression may improve perceived cognitive function.
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Affiliation(s)
- Sheila N Garland
- Department of Psychology, Memorial University, St. John's, Newfoundland and Labrador, Canada.,Discipline of Oncology, Memorial University, St. John's, Newfoundland and Labrador, Canada
| | - Josée Savard
- School of Psychology, Université Laval, Quebec City, Quebec, Canada.,Laval University Cancer Research Center, Quebec City, Quebec, Canada
| | - Sarah L Eisel
- Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, Florida
| | - Richard J Wassersug
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - John Thoms
- Discipline of Oncology, Memorial University, St. John's, Newfoundland and Labrador, Canada
| | - Heather S L Jim
- Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, Florida
| | - Brian D Gonzalez
- Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, Florida
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22
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Andela CD, Matte R, Jazet IM, Zonneveld WC, Schoones JW, Meinders AE. Effect of androgen deprivation therapy on cognitive functioning in men with prostate cancer: A systematic review. Int J Urol 2021; 28:786-798. [PMID: 34128263 PMCID: PMC9545697 DOI: 10.1111/iju.14596] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 04/14/2021] [Indexed: 01/25/2023]
Abstract
The objective of this study was to review publications assessing cognitive functioning in patients with prostate cancer treated with androgen deprivation therapy. We conducted a systematic review of the literature published in PubMed, Embase, Web of Science, Cochrane Library, and PsycINFO up to February 2020. A total of 31 studies were included. Half of the studies (n = 16) demonstrated that androgen deprivation therapy in patients with prostate carcinoma did not result in a negative effect on cognitive functioning, however, still a substantial proportion of the studies (n = 11) reported a negative effect on cognitive functioning. In four studies the results were inconclusive. In the three studies using additional functional magnetic resonance imaging, no significant effect on neuropsychological tests was found, but grey matter volume, brain activity, and brain connectivity were affected. Given the substantial number of studies showing a significant negative effect of androgen deprivation therapy on cognitive functioning, clinicians should be aware of this side effect. Furthermore, future research should focus on the further examination of brain characteristics using functional magnetic resonance imaging, since these techniques might be more sensitive in detecting brain abnormalities as a result of androgen deprivation therapy.
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Affiliation(s)
- Cornelie D Andela
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Rafil Matte
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Ingrid M Jazet
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Jan W Schoones
- Walaeus Library, Leiden University Medical Center, Leiden, The Netherlands
| | - A Edo Meinders
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
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Cinar O, Turunc T, Kazaz IO, Yildirim O, Deliktas H, Cihan A, Gudeloglu A, Ure I, Deveci S, Sahin B, Cinar BP, Ozkara H. Effects of androgen deprivation therapy on cognitive functions in patients with metastatic prostate cancer: A multicentric, prospective study of the Society of Urological Surgery Andrology group. Int J Clin Pract 2021; 75:e14095. [PMID: 33619782 DOI: 10.1111/ijcp.14095] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/18/2021] [Indexed: 12/28/2022] Open
Abstract
AIMS OF THE STUDY The aim of this study was to investigate the impact of testosterone deficiency on cognitive functions in metastatic prostate cancer patients receiving androgen deprivation therapy (ADT). METHODS In this multicentric prospective study, 65 metastatic prostate cancer patients were evaluated. Demographic and clinical data were recorded. Cognitive functions were assessed using the Symbol Digit Modalities Test, the California Verbal Learning Test Second Edition, the Brief Visuospatial Memory Test-Revised, and the Trail Making Test. Depressive symptoms were assessed using the Beck Depression Inventory. Cognitive functions and depressive symptoms were recorded before the androgen deprivation therapy and at the 3- and 6-month follow-ups. RESULTS At the basal cognitive assessment, the mean Symbol Digit Modalities Test, the California Verbal Learning Test Second Edition, the Brief Visuospatial Memory Test-Revised scores were 25.84 ± 17.54, 32.68 ± 10.60, and 17.63 ± 11.23, respectively, and the mean time for the Trail Making Test was 221.56 ± 92.44 seconds, and were similar at the 3-month, and 6-month controls (P > .05). The mean pretreatment, third and sixth month testosterone levels were 381.40 ± 157.53 ng/dL, 21.61 ± 9.09 ng/dL and 12.25 ± 6.45 ng/dL (P < .05), and the total PSA levels were 46.46 ± 37.83 ng/mL, 1.41 ± 3.31 ng/mL and 0.08 ± 0.14 ng/mL (P < .05), respectively. CONCLUSION The ADT in patients with metastatic prostate cancer does not affect patients' cognitive functions and depressive symptoms. However, further prospective randomised studies with higher cohorts and longer follow-up periods are needed.
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Affiliation(s)
- Onder Cinar
- Department of Urology, Zonguldak Bulent Ecevit University, Zonguldak, Turkey
| | - Tahsin Turunc
- Urology Clinic, Iskenderun Gelisim Hospital, Iskenderun, Turkey
| | - Ilke Onur Kazaz
- Department of Urology, Karadeniz Technical University, Trabzon, Turkey
| | - Omer Yildirim
- Department of Urology, Istanbul University Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Hasan Deliktas
- Department of Urology, Mugla Sitki Kocman University, Mugla, Turkey
| | - Ahmet Cihan
- Department of Urology, Nigde Omer Halisdemir University, Nigde, Turkey
| | | | - Iyimser Ure
- Department of Urology, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Serkan Deveci
- Department of Urology, Istanbul Rumeli University, Istanbul, Turkey
| | - Bahadir Sahin
- Department of Urology, Marmara University Medical Faculty, Istanbul, Turkey
| | - Bilge Piri Cinar
- Department of Neurology, Zonguldak Bulent Ecevit University, Zonguldak, Turkey
| | - Hamdi Ozkara
- Department of Urology, Istanbul University Cerrahpasa Medical Faculty, Istanbul, Turkey
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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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Analysis of Brain Functions in Men with Prostate Cancer under Androgen Deprivation Therapy: A One-Year Longitudinal Study. Life (Basel) 2021; 11:life11030227. [PMID: 33802213 PMCID: PMC8000211 DOI: 10.3390/life11030227] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 12/24/2022] Open
Abstract
The relationship between cognitive decline and androgen deprivation therapy (ADT) under luteinizing hormone-releasing hormone (LHRH) analogues is unclear, and there is a scarcity of longitudinal studies considering the interaction between cognition, depressive symptoms and sleep quality in men with prostate cancer (PCa) treated with ADT. This study aimed to determine if there were differences in the scores obtained in cognitive assessment, depressive symptoms, and sleep quality after one year of ADT and determine the interrelations between sleep, mood, and cognitive status. A prospective longitudinal observational study was designed, in which a cohort of men (mean age was 70.8 years) newly treated with androgen-deprivation therapy was assessed in the first six months of treatment and 12 months later. Analysis of cognitive function by the Mini-Mental State Examination (MMSE) scores indicated a significant (p < 0.05) increase after one year of treatment and by the Brief Scale for Cognitive Evaluation (BCog) scores indicated no changes in the scores before and after one year of treatment. Analysis of depressive symptoms with the Geriatric Depression Scale and sleep quality with the Athens Insomnia Scale (AIS) scores showed significant (p < 0.05) changes after one year of treatment with ADT, with men describing more depressive symptoms and more sleep disturbances. No statistically significant differences were found in the cognitive performance between men with impaired sleep or depression results and those without them. Our study showed no clinical evidence of the relationship between ADT under luteinizing hormone-releasing hormone (LHRH) analogues and cognitive deterioration in 1-year follow-up, but there are impairments in the sleep quality in men with PCa undergoing ADT and an increase in depressive symptoms which has important implications for clinicians as they would impair quality of life and adherence to treatment.
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Shim M, Bang WJ, Oh CY, Lee YS, Cho JS. Androgen deprivation therapy and risk of cognitive dysfunction in men with prostate cancer: is there a possible link? Prostate Int 2021; 10:68-74. [PMID: 35510099 PMCID: PMC9042678 DOI: 10.1016/j.prnil.2021.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/19/2021] [Accepted: 02/26/2021] [Indexed: 02/02/2023] Open
Abstract
The expansion of the indication to use androgen deprivation therapy (ADT) to treat patients with advanced or metastatic prostate cancer has dramatically increased over the recent decades, resulting in the progress of patients’ survival. However, chronic health implications can become more apparent as the number of long-term cancer survivors is expected to be increased along with the adverse effect of ADT. In particular, interest in investigating ADT, especially luteinizing hormone-releasing hormone (LHRH) agonist association with cognitive dysfunction has been growing. Previous studies in animals and humans suggest that the level of androgen decreases with age and that cognitive decline occurs with decreases in androgen. Correspondingly, some of the extensive studies using common neurocognitive tests have shown that LHRH agonists may affect specific domains of cognitive function (e.g., visuospatial abilities and executive function). However, the results from these studies have not consistently demonstrated the association because of its intrinsic limitations. Large-scale studies based on electronic databases have also failed to show consistent results to make decisive conclusions because of its heterogeneity, complexity of covariates, and possible risk of biases. Thus, this review article summarizes key findings and discusses the results of several studies investigating the ADT association with cognitive dysfunction and risk of dementia from various perspectives.
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Alzheimer Gene BIN1 may Simultaneously Influence Dementia Risk and Androgen Deprivation Therapy Dosage in Prostate Cancer. Am J Clin Oncol 2021; 43:685-689. [PMID: 32568785 DOI: 10.1097/coc.0000000000000727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Androgen deprivation therapy (ADT) is extensively used in prostate cancer. Yet the risk of impaired cognition or Alzheimer disease (AD) in men with prostate cancer receiving ADT is uncertain. Some studies of prostate cancer and ADT suggest that the risk of AD is not increased. But other studies have found an increased risk of AD and cognitive impairment. OBJECTIVES As the uncertainty about ADT and dementia might relate to the genetics of prostate cancer and AD, the authors used the Cancer Genome Atlas (TCGA) to examine the relationship in men with prostate cancer between genes implicated in AD and genes implicated in prostate cancer. METHODS The authors examined the genomics of 492 prostate cancer cases in the Genomic Data Commons (GDC) TCGA Prostate Cancer (PRAD) data set. To access and analyze the data, 2 web-based interfaces were used: (1) the UCSC Xena browser, a web-based visual integration and exploration tool for TCGA data, including clinical and phenotypic annotations; and (2) cBioportal, a web-based interface that enables integrative analysis of complex cancer genomics and clinical profiles. RESULTS Co-occurrence analysis indicates that alterations in the prostate cancer gene Speckle-type POZ protein (SPOP) significantly co-occur with alterations in the AD gene BIN1 (P<0.001). The presence of somatic mutations (deleterious and missense/in frame) in SPOP deranges BIN1 gene expression. SPOP/BIN1 RNA gene expression in 492 prostate cancer specimens is significantly correlated (P<0.001). Increased expression of SPOP in 492 prostate cancers is associated with reduced survival (P=0.00275). Men receiving pharmacologic therapy had a tumor with a significantly higher Gleason score (P=0.023). Gleason score and BIN1 RNA gene expression, unit log2 (fragments per kilobase of transcript per million mapped reads upper quartile [FPKM-UQ]+1), in 499 prostate cancer specimens were significantly inversely correlated (P<0.001). CONCLUSIONS BIN1 forms part of a network that interacts with the MYC oncogene, activated at the earliest phases of prostate cancer and in its position on chr8q24 linked to disease aggressiveness. Dynamic regulation of the BIN1-Tau interaction is involved in AD. BIN1 loss in AD allows phosphorylated tau to be mis-sorted to synapses, which likely alters the integrity of the postsynapse, alongside reducing the functionally important release of physiological forms of tau. Alzheimer symptoms are usually preceded by a preclinical phase that may be 16 years long. The authors suggest that the ADT dosage reflects the severity of a process that is already underway. The severity is determined by the genetics of the tumor itself, at least in part by BIN1. ADT is not causing new cases of AD. The oncologist treats higher-grade prostate cancer with more ADT, which serves as a surrogate marker for disease severity. Our analysis of TCGA data does not support the idea that ADT causes AD or dementia.
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Alonso-Quiñones H, Stish BJ, Aakre JA, Hagen CE, Petersen RC, Mielke MM. Androgen Deprivation Therapy Use and Risk of Mild Cognitive Impairment in Prostate Cancer Patients. Alzheimer Dis Assoc Disord 2021; 35:44-47. [PMID: 32960856 PMCID: PMC7904573 DOI: 10.1097/wad.0000000000000415] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/21/2020] [Indexed: 11/26/2022]
Abstract
INTRODUCTION We examined the association between androgen deprivation therapy (ADT) use and the risk of mild cognitive impairment (MCI) among prostate cancer patients. METHODS We included 241 cognitively unimpaired men, aged 70 to 90, with a history of prostate cancer before enrollment in the population-based Mayo Clinic Study of Aging. Using the Rochester Epidemiology Project medical records-linkage system, ADT use and length of exposure were abstracted. Follow-up visits occurred every 15 months and MCI diagnoses were made based on clinical consensus. Cox proportional hazards models, with age as the timescale, were used to examine the association between ADT use (yes/no) and length of exposure with the risk of MCI adjusting for education, apolipoprotein E, depression, and the Charlson Index score. RESULTS There was no association between any ADT use (27.8% of participants) and the risk of MCI in the multivariable model [hazard ratio (HR), 1.25; 95% confidence interval (CI), 0.75-2.10]. Although not significant, there was an ADT dose-response relationship for risk of MCI: <5 years versus no use (HR, 1.08; 95% CI, 0.60-1.96) and ≥5 years versus not use (HR, 1.89; 95% CI, 0.83-4.27). CONCLUSION ADT use among prostate cancer patients was not associated with an increased risk of developing MCI.
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Affiliation(s)
- Hector Alonso-Quiñones
- University of Puerto Rico, School of Medicine. San Juan, Puerto Rico
- Mayo Clinic Alix School of Medicine and Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota
| | - Bradley J. Stish
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | - Jeremiah A. Aakre
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Clinton E. Hagen
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Ronald C. Petersen
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
- Department of Neurology, Mayo Clinic, Rochester, Minnesota
| | - Michelle M. Mielke
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
- Department of Neurology, Mayo Clinic, Rochester, Minnesota
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Lehrer S, Rheinstein PH. Co-occurrent Alterations of Alzheimer's Genes and Prostate Cancer Genes in Prostate Cancer. Cancer Genomics Proteomics 2020; 17:271-275. [PMID: 32345668 DOI: 10.21873/cgp.20187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/01/2020] [Accepted: 03/03/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Androgen deprivation therapy (ADT) is extensively employed in treatment of prostate cancer. Some studies have found increased risk of Alzheimer's disease and cognitive impairment in patients treated with ADT. AIM Since the uncertainty about ADT and dementia might relate to the genetics of prostate cancer and Alzheimer's disease, we used the Cancer Genome Atlas (TCGA) to examine the relationship between genes implicated in Alzheimer's disease and genes implicated in prostate cancer in men with prostate cancer. MATERIALS AND METHODS The genomics of 492 prostate cancer cases in the Genomic Data Commons TCGA Prostate Cancer data set were examined. RESULTS Alterations (mutation, amplification or deletion) in prostate cancer gene speckle-type POZ protein (SPOP) significantly co-occurred with alterations in Alzheimer's disease gene bridging integrator-1 (BIN1). Alterations in prostate cancer gene spectrin alpha 1 (SPTA1) significantly co-occurred with alterations in Alzheimer's disease gene CD2-associated protein (CD2AP) (p<0.001). The presence of somatic mutations (deleterious and missense/in frame) in SPOP disturbs BIN1 gene expression. SPOP and BIN1 RNA expression in 492 prostate cancer specimens was significantly positively correlated (p<0.001). Increased expression of SPOP in 492 cases of prostate cancer was associated with reduced survival (p=0.00275). BIN1 forms part of a network that interacts with the MYC oncogene, which is activated at the earliest phases of prostate cancer and is linked to disease aggressiveness. Men receiving ADT had tumor with a significantly higher Gleason score (p=0.023). Gleason score and BIN1 RNA expression in 499 prostate cancer specimens were significantly correlated (p<0.001). CONCLUSION The severity of prostate cancer is determined by the genetics of the tumor itself, possibly at least in part by the interactions of SPOP/BIN1, MYC/BIN1 and SPTA1/CD2AP. Oncologists treats higher grade prostate cancer with more ADT, which serves as a surrogate marker for disease severity. A weakness of our study is that we did not examine Alzheimer's disease or dementia at all in patients with cancer, only co-occurrence of genetic alterations. Nevertheless, our analysis of TCGA data does not support the idea that ADT causes Alzheimer's disease or dementia.
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Affiliation(s)
- Steven Lehrer
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, U.S.A.
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Tonry C, Finn S, Armstrong J, Pennington SR. Clinical proteomics for prostate cancer: understanding prostate cancer pathology and protein biomarkers for improved disease management. Clin Proteomics 2020; 17:41. [PMID: 33292167 PMCID: PMC7678104 DOI: 10.1186/s12014-020-09305-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022] Open
Abstract
Following the introduction of routine Prostate Specific Antigen (PSA) screening in the early 1990's, Prostate Cancer (PCa) is often detected at an early stage. There are also a growing number of treatment options available and so the associated mortality rate is generally low. However, PCa is an extremely complex and heterogenous disease and many patients suffer disease recurrence following initial therapy. Disease recurrence commonly results in metastasis and metastatic PCa has an average survival rate of just 3-5 years. A significant problem in the clinical management of PCa is being able to differentiate between patients who will respond to standard therapies and those who may benefit from more aggressive intervention at an earlier stage. It is also acknowledged that for many men the disease is not life threatenting. Hence, there is a growing desire to identify patients who can be spared the significant side effects associated with PCa treatment until such time (if ever) their disease progresses to the point where treatment is required. To these important clinical needs, current biomarkers and clinical methods for patient stratification and personlised treatment are insufficient. This review provides a comprehensive overview of the complexities of PCa pathology and disease management. In this context it is possible to review current biomarkers and proteomic technologies that will support development of biomarker-driven decision tools to meet current important clinical needs. With such an in-depth understanding of disease pathology, the development of novel clinical biomarkers can proceed in an efficient and effective manner, such that they have a better chance of improving patient outcomes.
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Affiliation(s)
- Claire Tonry
- UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Stephen Finn
- Department of Histopathology and Morbid Anatomy, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin 8, Ireland
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Atallah P, Kanaan RA, Russell N, Allebone J, Grossmann M. Cognitive function in prostate cancer patients on androgen deprivation therapy: A case-control study. Gen Hosp Psychiatry 2020; 67:152-153. [PMID: 32451089 DOI: 10.1016/j.genhosppsych.2020.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/14/2020] [Accepted: 04/19/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Peter Atallah
- Department of Endocrinology, Austin Health, Melbourne, VA, Australia
| | - Richard A Kanaan
- Department of Psychiatry, University of Melbourne, Austin Health, Heidelberg, Germany
| | - Nicholas Russell
- Department of Endocrinology, Austin Health, Melbourne, VA, Australia; Department of Medicine Austin Health, University of Melbourne, Melbourne, VA, Australia
| | - James Allebone
- Department of Psychiatry, University of Melbourne, Austin Health, Heidelberg, Germany.
| | - Mathis Grossmann
- Department of Endocrinology, Austin Health, Melbourne, VA, Australia; Department of Medicine Austin Health, University of Melbourne, Melbourne, VA, Australia
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Lee HH, Park S, Joung JY, Kim SH. How Does Androgen Deprivation Therapy Affect Mental Health including Cognitive Dysfunction in Patients with Prostate Cancer? World J Mens Health 2020; 39:598-605. [PMID: 32777867 PMCID: PMC8443997 DOI: 10.5534/wjmh.200092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 06/25/2020] [Accepted: 07/03/2020] [Indexed: 11/29/2022] Open
Abstract
Androgen deprivation therapy (ADT) is used to block the release of androgen in prostate cancer to promote the regression of cancer cells, and hence, disease progression. Its indication has been widened from the metastatic setting to the localized setting in prostate cancer. Long-term ADT for suppressing androgen release leads to a rapid decrease in androgen, termed as andropause, resulting in several dose and duration dependent adverse effects, including cognitive dysfunction such as dementia. Many retrospective and prospective studies, as well as meta-analyses, have attempted to confirm the crucial relationship between ADT and cognitive dysfunction, but pro and contrary opinions regarding this issue are ongoing owing to the absence of randomized controlled trials. Additionally, several recent studies have suggested the negative effects of dose- and duration-dependent ADT on cognitive dysfunction, especially in 40–65-year-old patients with prostate cancer, who are currently active workers in the society. This review article discusses several studies examining the influence of ADT on mental health based on diverse significant perspectives, especially cognitive dysfunction.
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Affiliation(s)
- Hyung Ho Lee
- Department Urology, Urological Cancer Center, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Sahyun Park
- Department Urology, Urological Cancer Center, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Jae Young Joung
- Department Urology, Urological Cancer Center, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Sung Han Kim
- Department Urology, Urological Cancer Center, Research Institute and Hospital of National Cancer Center, Goyang, Korea.
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Kang J, Shin DW, Han K, Park SH, Lee WG, Yoo JE, Woo SH, Park J. Risk of dementia in prostate cancer survivors: A nationwide cohort study in Korea. Curr Probl Cancer 2020; 44:100578. [PMID: 32360240 DOI: 10.1016/j.currproblcancer.2020.100578] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/03/2020] [Accepted: 03/17/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES To investigate the effects of prostate cancer (PC) and various treatment modalities for PC, specifically androgen deprivation therapy (ADT), on the risk of dementia and dementia subtypes in PC survivors. MATERIAL AND METHODS A total of 51,252 patients newly diagnosed with PC from 2007 to 2013, who had no prior diagnosis of cancer or dementia, were included and matched with 209,659 non-cancer control. The screening subset was comprised of subjects who participated in a health screening program. We used Cox proportional hazards model to estimate the relative risk of dementia and dementia subtypes according to the primary treatment for the PC. RESULTS Compared to non-PC matched controls, PC survivors showed slightly higher risk for dementia and Alzheimer disease (AD) only in the screening cohort. While PC survivors who underwent ADT were higher risk for dementia and AD, patients who underwent surgery were lower risk for dementia and AD, compared to the non-cancer population. Compared to surgery, ADT, surgery + ADT, and active surveillance/watchful waiting showed a significantly elevated risk for dementia. CONCLUSION PC survivors had slightly higher risk for dementia compared to non-PC controls, which might be related to the screening effects of PC. The risk for dementia was most prominent among PC patients who underwent ADT, followed by patients who underwent AS/WW, and those who underwent surgery + ADT. This finding suggests that individualized ADT strategies that consider the survival benefit and underlying dementia risk in PC survivors are necessary.
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Affiliation(s)
- Jihun Kang
- Department of Family Medicine, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Republic of Korea
| | - Dong Wook Shin
- Supportive Care Center, Samsung Comprehensive Cancer Center/Department of Family Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Department of Digital Health, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea.
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Sang Hyun Park
- Department of Medical Statistics, The Catholic University of Korea, Seoul, Republic of Korea
| | - Won Gu Lee
- Department of Neurology, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Republic of Korea
| | - Jung Eun Yoo
- Department of Family Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Seung-Hyo Woo
- Department of Urology, Eulji University Hospital, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Jinsung Park
- Department of Urology, Eulji University Hospital, Eulji University School of Medicine, Daejeon, Republic of Korea.
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Shore ND, Antonarakis ES, Cookson MS, Crawford ED, Morgans AK, Albala DM, Hafron J, Harris RG, Saltzstein D, Brown GA, Henderson J, Lowentritt B, Spier JM, Concepcion R. Optimizing the role of androgen deprivation therapy in advanced prostate cancer: Challenges beyond the guidelines. Prostate 2020; 80:527-544. [PMID: 32130741 PMCID: PMC7154535 DOI: 10.1002/pros.23967] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 02/04/2020] [Indexed: 11/11/2022]
Abstract
BACKGROUND For specific clinical indications, androgen deprivation therapy (ADT) will induce disease prostate cancer (PC) regression, relieve symptoms and prolong survival; however, ADT has a well-described range of side effects, which may have a detrimental effect on the patient's quality of life, necessitating additional interventions or changes in PC treatment. The risk-benefit analysis for initiating ADT in PC patients throughout the PC disease continuum warrants review. METHODS A 14-member panel comprised of urologic and medical oncologists were chosen for an expert review panel, to provide guidance on a more judicious use of ADT in advanced PC patients. Panel members were chosen based upon their academic and community experience and expertise in the management of PC patients. Four academic members of the panel served as group leaders; the remaining eight panel members were from Large Urology Group Practice Association practices with proven experience in leading their advanced PC clinics. The panel members were assigned to four separate working groups, and were tasked with addressing the role of ADT in specific PC settings. RESULTS This article describes the practical recommendations of an expert panel for the use of ADT throughout the PC disease continuum, as well as an algorithm summarizing the key recommendations. The target for this publication is all providers (urologists, medical oncologists, radiation oncologists, or advanced practice providers) who evaluate and manage advanced PC patients, regardless of their practice setting. CONCLUSION The panel has provided recommendations for monitoring PC patients while on ADT, recognizing that PC patients will progress despite testosterone suppression and, therefore, early identification of conversion from castrate-sensitive to castration resistance is critical. Also, the requirement to both identify and mitigate side effects of ADT as well as the importance of quality of life maintenance are essential to the optimization of patient care, especially as more combinatorial therapeutic strategies with ADT continue to emerge.
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Affiliation(s)
- Neal D. Shore
- Carolina Urologic Research Center, Atlantic Urology ClinicsMyrtle BeachSouth Carolina
| | | | | | | | - Alicia K. Morgans
- Northwestern University, Robert H. Lurie Comprehensive Cancer CenterChicagoIllinois
| | | | - Jason Hafron
- Willam Beaumont School of Medicine, Oakland UniversityRochesterMichigan
- Beaumont HealthRoyal OakMichigan
- Michigan Institute of UrologyTroyMichigan
| | | | | | - Gordon A. Brown
- Rowan‐School of MedicineStratfordNew Jersey
- Jefferson Health New Jersey, New Jersey UrologySewellNew Jersey
| | | | | | | | - Raoul Concepcion
- Integra ConnectWest Palm BeachFlorida
- Department of UrologyVanderbilt University School of MedicineNashvilleTennessee
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Alonso Quiñones H, Stish BJ, Hagen C, Petersen RC, Mielke MM. Prostate Cancer, Use of Androgen Deprivation Therapy, and Cognitive Impairment: A Population-based Study. Alzheimer Dis Assoc Disord 2020; 34:118-121. [PMID: 31821185 PMCID: PMC7242115 DOI: 10.1097/wad.0000000000000366] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The association of prostate cancer and androgen deprivation therapy (ADT) use with the odds of developing mild cognitive impairment (MCI) was determined in men from the population-based Mayo Clinic Study of Aging (MCSA). METHODS The study included 2513 men (mean age of 73.1 y) enrolled in the MCSA. A history of prostate cancer, ADT use, and length of ADT exposure before their first MCSA visit was abstracted using the Rochester Epidemiology Project medical records-linkage system. MCI was diagnosed at the baseline visit. Logistic regression was used to determine whether prostate cancer and ADT use was associated with odds of MCI. RESULTS Of the 2513 participants, 349 (13.9%) had a history of prostate cancer; among whom 99 (28.3%) were treated with ADT before MCSA enrollment. There were 382 (15.2%) with a diagnosis of MCI. In the univariate logistic regression models, prostate cancer (odds ratio, 1.50; 95% confidence interval, 1.12-2.00), and ADT exposure (odds ratio, 1.57; 95% confidence interval, 0.96-2.58) were associated with higher odds of MCI. These associations were greatly attenuated and not significant in multivariable models. CONCLUSIONS Neither a diagnosis of prostate cancer nor ADT use was associated with odds of MCI in this cross-sectional population-based study.
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Affiliation(s)
- Hector Alonso Quiñones
- University of Puerto Rico, School of Medicine, San Juan, PR
- Mayo Clinic Alix School of Medicine and Center for Clinical and Translational Science
| | | | | | - Ronald C. Petersen
- Department of Health Sciences Research
- Department of Neurology, Mayo Clinic, Rochester, MN
| | - Michelle M. Mielke
- Department of Health Sciences Research
- Department of Neurology, Mayo Clinic, Rochester, MN
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Wong RL, Morgans AK. Integration of Patient Reported Outcomes in Drug Development in Genitourinary Cancers. Curr Oncol Rep 2020; 22:21. [PMID: 32036478 DOI: 10.1007/s11912-020-0890-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE OF REVIEW Patient reported outcomes (PROs) are increasingly utilized in cancer drug development, and are of particular importance in genitourinary cancers due to symptom burden, multiple treatment options with similar efficacy, and often prolonged duration of disease. Here we review current data and perspectives related to use of PROs in drug development for genitourinary cancers, including insights on the regulatory process for drug approval. RECENT FINDINGS The FDA is committed to incorporating PRO data into the regulatory process for development and approval of new cancer drugs, but challenges exist due to lack of standardization of PRO instrument choice and analytic approach, missing data, and difficulty isolating treatment effect from disease-related effects. We review guidance for standardization of PRO methodology that is nonetheless tailored to disease state and anticipated effects of treatment. PRO and efficacy data should be simultaneously analyzed and reported for best clinical practice. Multiple disease-specific PRO instruments exist for genitourinary cancers. While clinicians, researchers, and regulatory bodies alike recognize the importance of PROs in cancer drug development, challenges remain regarding implementation of best practices.
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Affiliation(s)
- Risa L Wong
- Department of Medicine, Division of Oncology, University of Washington, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Alicia K Morgans
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, USA.
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Cherrier MM, Higano CS. Impact of androgen deprivation therapy on mood, cognition, and risk for AD. Urol Oncol 2020; 38:53-61. [DOI: 10.1016/j.urolonc.2019.01.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 01/11/2019] [Accepted: 01/18/2019] [Indexed: 01/14/2023]
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Cai Z, Li H. An Updated Review: Androgens and Cognitive Impairment in Older Men. Front Endocrinol (Lausanne) 2020; 11:586909. [PMID: 33281745 PMCID: PMC7691320 DOI: 10.3389/fendo.2020.586909] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/12/2020] [Indexed: 12/16/2022] Open
Abstract
Androgens are some of the most important sex hormones in men, and they maintain important physiological activities in the human body. Cognitive impairment is one of the most common manifestations of aging in the elderly population and an important factor affecting the quality of life of elderly individuals. The levels of sex hormones in elderly people decrease with age, and low levels of androgens in older male individuals have been closely linked to the development of cognitive impairment. Basic studies have shown that androgens have neuroprotective effects and that androgen deficiency impairs cognitive function by increasing oxidative stress and decreasing synaptic plasticity, among other effects. Additionally, clinical studies have also shown that androgen deficiency is closely related to cognitive impairment. This article reviews the relationship between low androgen levels and cognitive impairment, their potential mechanisms, and the effects of testosterone supplementation in improving cognition.
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Affiliation(s)
- Zhonglin Cai
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongjun Li
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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Fernandes HA, Richard NM, Edelstein K. Cognitive rehabilitation for cancer-related cognitive dysfunction: a systematic review. Support Care Cancer 2019; 27:3253-3279. [PMID: 31147780 DOI: 10.1007/s00520-019-04866-2] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 04/23/2019] [Accepted: 05/09/2019] [Indexed: 01/03/2023]
Abstract
PURPOSE Individuals with non-central nervous system (CNS) cancers can experience cancer-related cognitive dysfunction (CRCD), negatively impacting daily functioning and quality of life. This systematic review examined cognitive rehabilitation programs aimed at improving cognitive function. METHODS PsychInfo and PubMed were searched in February 2019. Eligible studies evaluated a cognitive rehabilitation program for adults with non-CNS cancers and included at least one objective cognitive measure. Across studies, we assessed methodological quality using relevant criteria based on published intervention-related review guidelines and examined findings from performance-based and self-reported outcome measures. RESULTS 19 studies met inclusion criteria, totalling 1124 participants altogether. These studies included randomized controlled trials (n = 12), partial, quasi or non-randomized controlled trials (n = 3) and single-arm pilot studies (n = 4). All studies found improvements on at least one cognitive measure (performance-based or self-reported). By cognitive domain, objective improvements in memory were most commonly reported, followed by executive functions and processing speed. In terms of methodological quality, studies generally provided clear descriptions of participants and interventions. However, limitations included lack of standardized terminology for interventions, discrepancies in outcome measures, and incomplete statistical reporting. CONCLUSIONS The available evidence supports clinical implementation of cognitive rehabilitation to improve CRCD, with further work in program development, dissemination, and feasibility recommended. We provide specific recommendations to facilitate future research and integration in this field.
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Affiliation(s)
- Holly A Fernandes
- Department of Psychology, Faculty of Health, York University, 4700 Keele St., Toronto, ON, M3J 1P3, Canada.
| | - Nadine M Richard
- Department of Supportive Care, Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Kim Edelstein
- Department of Supportive Care, Princess Margaret Cancer Centre, Toronto, ON, Canada
- Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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Weiner AB, Nettey OS, Morgans AK. Management of Metastatic Hormone-Sensitive Prostate Cancer (mHSPC): an Evolving Treatment Paradigm. Curr Treat Options Oncol 2019; 20:69. [PMID: 31286275 DOI: 10.1007/s11864-019-0668-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OPINION STATEMENT Combination systemic therapy is now standard of care for all men with metastatic, hormone-sensitive prostate cancer (mHSPC). Patients with mHSPC should be treated with standard androgen deprivation therapy (ADT) and abiraterone acetate with prednisone or docetaxel (chemohormoanl therapy) unless there are contraindications to combination therapy. Based on the Chemohormonal Therapy Versus Androgen Ablation Randomized Trial for Extensive Disease in Prostate Cancer (CHAARTED) study subgroup analysis, chemohormonal therapy may be most beneficial in men with high-volume disease burden, as men with low-volume metastatic disease do not appear to experience a survival benefit with chemohormonal therapy, while abiraterone in combination with ADT appears to be beneficial across both disease volume subgroups. Decisions regarding whether to use chemohormonal therapy or abiraterone and ADT for men with mHSPC should integrate consideration of volume of disease burden, quality of life effects, duration of therapy, and patient preferences for treatment as there is no formally powered prospective head-to-head comparison of these options demonstrating superiority of one approach over the other. Treatment of the primary tumor with radiation should be considered in men with de novo low-volume metastatic disease as radiation is associated with prolonged survival and a tolerable toxicity profile. Men with de novo high-volume metastatic disease do not appear to have improved survival with radiation of the primary tumor. Numerous clinical trials are ongoing to evaluate treatment approaches that may benefit men with mHSPC. Radical prostatectomy in men with mHSPC in combination with optimal systemic therapy is currently being assessed in a clinical trial, but should not be considered outside of a clinical trial. Metastasis-directed therapy with radiotherapy directed at metastatic lesions is still investigational, but can be considered in clinical trials in men with oligometastatic disease. Multiple studies are enrolling worldwide for men with mHSPC, and these should be considered for all interested patients.
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Affiliation(s)
- Adam B Weiner
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Oluwarotimi S Nettey
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Alicia K Morgans
- Department of Medicine, Northwestern University Feinberg School of Medicine, 676 N. St. Clair, Suite 850, Chicago, IL, 60611, USA.
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Morgans AK, Ryan CJ. Hard Problems Need "Soft" Science: Integrating Quality of Life into Treatment Decision Making. Eur Urol 2019; 75:948-949. [PMID: 30642609 DOI: 10.1016/j.eururo.2019.01.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 01/03/2019] [Indexed: 01/16/2023]
Affiliation(s)
- Alicia K Morgans
- Division of Hematology/Oncology, Department of Medicine, Northwestern University, Chicago, IL, USA.
| | - Charles J Ryan
- Department of Medicine and Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
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Lehrer S, Rheinstein PH, Rosenzweig KE. No Relationship of Anti-Androgens to Alzheimer's Disease or Cognitive Disorder in the MedWatch Database. J Alzheimers Dis Rep 2018; 2:123-127. [PMID: 30480255 PMCID: PMC6159660 DOI: 10.3233/adr-180052] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background Two large studies suggest that risk is not increased. But other studies have found increased risk of Alzheimer's disease and impaired cognition. Objective To determine whether androgen deprivation therapy increases the risk of impaired cognition or Alzheimer's disease in men with prostate cancer. Methods We used data from MedWatch, the Food and Drug Administration (FDA) Safety Information and Adverse Event Reporting Program. Machine-readable data from MedWatch, including adverse drug reaction reports from manufacturers, are part of a public database. We used the online tool OpenVigil 2.1 to query the database. OpenVigil calculates proportional reporting ratios (PRRs) from adverse drug reaction reports to determine whether the combination of drug and adverse event are related. For example, PRR = 2 indicates that the adverse reaction is two times more frequent in users of the drug than in the general population. Results We analyzed adverse event reporting data for these androgen-deprivation drugs: The luteinizing hormone releasing hormone (LHRH) agonists leuprolide, goserelin triptorelin, histrelin; the anti-androgens flutamide, nilutamide, enzalutamide, and bicalutamide; the LHRH antagonist degarelix; the CYP17 inhibitor abiraterone; the anti-fungal ketoconazole, which is also an anti-androgen administered to men with advanced prostate cancer. Conclusion Our analysis of FDA MedWatch adverse event data reports does not support the idea that androgen deprivation therapy per se is associated with Alzheimer's disease or cognitive dysfunction. Perhaps the prostate cancer itself, or the stress it imposes on the man who has it, may be detrimental to mood and intellect, increasing susceptibility to Alzheimer's disease and cognitive disorder.
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Affiliation(s)
- Steven Lehrer
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Kenneth E Rosenzweig
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Sun M, Cole AP, Hanna N, Mucci LA, Berry DL, Basaria S, Ahern DK, Kibel AS, Choueiri TK, Trinh QD. Cognitive Impairment in Men with Prostate Cancer Treated with Androgen Deprivation Therapy: A Systematic Review and Meta-Analysis. J Urol 2018; 199:1417-1425. [DOI: 10.1016/j.juro.2017.11.136] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2017] [Indexed: 10/18/2022]
Affiliation(s)
- Maxine Sun
- Lank Center for Genitourinary Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
- Division of Urological Surgery, Center for Surgery and Public Health, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Alexander P. Cole
- Division of Urological Surgery, Center for Surgery and Public Health, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Nawar Hanna
- Division of Urological Surgery, Center for Surgery and Public Health, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Lorelei A. Mucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Donna L. Berry
- Phyllis F. Cantor Center, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Shehzad Basaria
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - David K. Ahern
- Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Adam S. Kibel
- Division of Urological Surgery, Center for Surgery and Public Health, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Toni K. Choueiri
- Lank Center for Genitourinary Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Quoc-Dien Trinh
- Division of Urological Surgery, Center for Surgery and Public Health, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
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Debate position: cognition and mood are not improved in men administered exogenous testosterone therapy. Curr Opin Urol 2018; 27:525-531. [PMID: 28863017 DOI: 10.1097/mou.0000000000000435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW The purpose of this article is to provide an overview of the increasing evidence suggesting that exogenous testosterone therapy is not associated with improvements in cognition or mood. This article is part of a series, in this issue, in which authors are assigned opinion pieces on controversial topics pertaining to testosterone replacement. RECENT FINDINGS Testosterone is increasingly being prescribed. Particularly in the setting of recent data suggestive of possible cardiovascular risk associated with its use; a clear understanding of the domains of health that improve with exogenous testosterone use is important. Data on endogenous and exogenous testosterone with cognition and mood are mixed, likely partly related to methodological differences of type of testosterone, patient population, and dosing. SUMMARY Overall, available data are not suggestive of a clear benefit of testosterone supplementation in multiple domains of cognition and in mood. Supraphysiologic testosterone has been associated with adverse psychological outcomes, albeit not uniformly in studies.
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Affiliation(s)
- Steven Lehrer
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, New York; Severn Health Solutions, Severna Park, Maryland
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47
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McHugh DJ, Root JC, Nelson CJ, Morris MJ. Androgen-deprivation therapy, dementia, and cognitive dysfunction in men with prostate cancer: How much smoke and how much fire? Cancer 2018; 124:1326-1334. [PMID: 29338083 DOI: 10.1002/cncr.31153] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/19/2017] [Accepted: 10/23/2017] [Indexed: 11/09/2022]
Abstract
Androgen-deprivation therapy (ADT) remains the cornerstone of management for patients with metastatic prostate cancer. Although the toxicities of ADT are well established, there is increasing controversy surrounding the association between cognitive dysfunction and the receipt of ADT, with some evidence suggesting an increased risk of dementia. The authors conducted a literature search to identify pertinent clinical studies in this field. This general review outlines the key findings and discusses the relative strengths and weaknesses when drawing conclusions about the risk of cognitive dysfunction or dementia with ADT use. Cancer 2018;124:1326-34. © 2018 American Cancer Society.
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Affiliation(s)
- Deaglan J McHugh
- Genitourinary Oncology Service, Memorial Sloan Kettering Cancer Center, New York, New York
| | - James C Root
- Neurocognitive and Research Laboratory, Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, New York.,Department of Psychiatry, Weill Cornell Medical College, New York, New York.,Department of Anesthesiology, Weill Cornell Medical College, New York, New York
| | - Christian J Nelson
- Neurocognitive and Research Laboratory, Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, New York.,Department of Psychiatry, Weill Cornell Medical College, New York, New York
| | - Michael J Morris
- Genitourinary Oncology Service, Memorial Sloan Kettering Cancer Center, New York, New York.,Department of Medicine, Weill Cornell Medicine, New York, New York
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48
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Comprehensive Geriatric Assessment in the Older Adult with Cancer: A Review. Eur Urol Focus 2018; 3:330-339. [PMID: 29331624 DOI: 10.1016/j.euf.2017.10.010] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 10/19/2017] [Accepted: 10/21/2017] [Indexed: 01/21/2023]
Abstract
CONTEXT The number of older adults with cancer is expected to increase rapidly in the upcoming decades. Aging is heterogeneous and chronological age is often not reflective of biological age. A comprehensive geriatric assessment (CGA) is an in-depth assessment of multiple domains of health that results in better assessment of a patient's overall health and fitness and allows directed intervention to improve patient outcomes. OBJECTIVE To review the value of CGA for older adults with cancer, CGA composition and tools that can be utilized, and the feasibility of including CGA in oncologic practice. EVIDENCE ACQUISITION The currently available evidence on CGA for older adults with cancer was reviewed. EVIDENCE SYNTHESIS A CGA can highlight unidentified health problems and identify patients at higher risk of mortality, functional decline, surgical complications, chemotherapy intolerance, and chemotherapy toxicity. It has been shown that CGA is feasible in the oncology clinic, but geriatric screening tools may be useful to specifically identify patients who would benefit from a full CGA. CONCLUSIONS CGA is feasible and can identify patients at higher risk of adverse events such as mortality, functional decline, surgical complications, and chemotherapy toxicity. Clinicians should consider incorporating CGA when assessing and caring for older adults with cancer. PATIENT SUMMARY In this report, we review the benefits of a comprehensive geriatric assessment (CGA), a detailed in-depth assessment that identifies health problems not typically identified during routine assessments, for older adults with cancer. We describe the different domains of the CGA and suggest tools to utilize, as well as ways to incorporate CGA into the cancer care setting.
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Tobiansky DJ, Wallin-Miller KG, Floresco SB, Wood RI, Soma KK. Androgen Regulation of the Mesocorticolimbic System and Executive Function. Front Endocrinol (Lausanne) 2018; 9:279. [PMID: 29922228 PMCID: PMC5996102 DOI: 10.3389/fendo.2018.00279] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/11/2018] [Indexed: 12/21/2022] Open
Abstract
Multiple lines of evidence indicate that androgens, such as testosterone, modulate the mesocorticolimbic system and executive function. This review integrates neuroanatomical, molecular biological, neurochemical, and behavioral studies to highlight how endogenous and exogenous androgens alter behaviors, such as behavioral flexibility, decision making, and risk taking. First, we briefly review the neuroanatomy of the mesocorticolimbic system, which mediates executive function, with a focus on the ventral tegmental area (VTA), nucleus accumbens (NAc), medial prefrontal cortex (mPFC), and orbitofrontal cortex (OFC). Second, we present evidence that androgen receptors (AR) and other steroid receptors are expressed in the mesocorticolimbic system. Using sensitive immunohistochemistry and quantitative polymerase chain reaction (qPCR) techniques, ARs are detected in the VTA, NAc, mPFC, and OFC. Third, we describe recent evidence for local androgens ("neuroandrogens") in the mesocorticolimbic system. Steroidogenic enzymes are expressed in mesocorticolimbic regions. Furthermore, following long-term gonadectomy, testosterone is nondetectable in the blood but detectable in the mesocorticolimbic system, using liquid chromatography tandem mass spectrometry. However, the physiological relevance of neuroandrogens remains unknown. Fourth, we review how anabolic-androgenic steroids (AAS) influence the mesocorticolimbic system. Fifth, we describe how androgens modulate the neurochemistry and structure of the mesocorticolimbic system, particularly with regard to dopaminergic signaling. Finally, we discuss evidence that androgens influence executive functions, including the effects of androgen deprivation therapy and AAS. Taken together, the evidence indicates that androgens are critical modulators of executive function. Similar to dopamine signaling, there might be optimal levels of androgen signaling within the mesocorticolimbic system for executive functioning. Future studies should examine the regulation and functions of neurosteroids in the mesocorticolimbic system, as well as the potential deleterious and enduring effects of AAS use.
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Affiliation(s)
- Daniel J. Tobiansky
- Department of Psychology, University of British Columbia, Vancouver, BC, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
- *Correspondence: Daniel J. Tobiansky,
| | - Kathryn G. Wallin-Miller
- Neuroscience Graduate Program, University of Southern California, Los Angeles, CA, United States
| | - Stan B. Floresco
- Department of Psychology, University of British Columbia, Vancouver, BC, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Ruth I. Wood
- Department of Integrative Anatomical Sciences, Keck School of Medicine of the University of Southern California, Los Angeles, CA, United States
| | - Kiran K. Soma
- Department of Psychology, University of British Columbia, Vancouver, BC, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
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50
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Wu LM, Amidi A, Tanenbaum ML, Winkel G, Gordon WA, Hall SJ, Bovbjerg K, Diefenbach MA. Computerized cognitive training in prostate cancer patients on androgen deprivation therapy: a pilot study. Support Care Cancer 2017; 26:1917-1926. [PMID: 29282534 DOI: 10.1007/s00520-017-4026-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 12/18/2017] [Indexed: 01/13/2023]
Abstract
PURPOSE Prostate cancer patients who have undergone androgen deprivation therapy (ADT) may experience cognitive impairment, yet there is an unmet need for nonpharmacological interventions to address cognitive impairment in this population. This study examines the feasibility, acceptability, and preliminary efficacy of a home-based computerized cognitive training (CCT) program to treat cancer-related cognitive impairment. METHODS Sixty men who had received ≥ 3 months of ADT were screened for at least mild cognitive or neurobehavioral impairment and randomized to 8 weeks of CCT or usual care. Follow-up assessments occurred immediately post-intervention or equivalent (T2) and 8 weeks later (T3). The acceptability of CCT was also assessed. RESULTS Feasibility:A priori feasibility thresholds were partially met (i.e., randomization rate > 50%, retention rate > 70% excluding CCT drop-outs, but < 70% for intent-to-treat). Acceptability: Participants were mostly satisfied with CCT and found it somewhat enjoyable, though barriers to uptake existed. Preliminary efficacy: Linear mixed models indicated significant time by group effects favorable to CCT in reaction time (p = .01), but unfavorable to CCT in verbal and visual memory (ps < .05). Memory was temporarily suppressed in the CCT group at T2, but normalized by T3. There was no effect of CCT on self-reported cognitive functioning, neurobehavioral functioning, nor quality of life. CONCLUSIONS This study provides tentative support for the feasibility and acceptability of CCT to treat mild cognitive impairment in ADT patients. CCT had a beneficial effect on reaction time, but temporarily suppressed memory. CCT's benefits may be limited to a narrow area of functioning. Larger-scale studies are needed.
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Affiliation(s)
- Lisa M Wu
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, 633 North St. Clair, 19th floor, Chicago, IL, 60611, USA.
| | - Ali Amidi
- Unit for Psychooncology and Health Psychology, Department of Oncology and Department of Psychology and Behavioural Sciences, Aarhus University Hospital and Aarhus University, Aarhus, Denmark
| | - Molly L Tanenbaum
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Gary Winkel
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Wayne A Gordon
- Department of Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Simon J Hall
- Department of Medicine and Urology, Northwell Health, Great Neck, NY, USA
| | - Katrin Bovbjerg
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, 633 North St. Clair, 19th floor, Chicago, IL, 60611, USA
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