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Lau J, Khoo AMG, Choe L, Hoon A, Tan KK. Quantifying chemotherapy-induced cognitive impairment in gastrointestinal cancer patients: A scoping review of methodological concerns in the literature. Asia Pac J Clin Oncol 2024. [PMID: 38808735 DOI: 10.1111/ajco.14082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 12/19/2023] [Accepted: 05/13/2024] [Indexed: 05/30/2024]
Abstract
PURPOSE Chemotherapy is one of the common treatments in cancer management. However, chemotherapy-induced cognitive impairment (CICI) is one notable side effect that can greatly impact a patient's quality of life. Literature on CICI in gastrointestinal (GI) cancers are few and inconsistent. This review aims to identify the methodological differences in such studies. METHODS A systematic search was performed in four electronic databases. All peer-reviewed primary literature published in English that evaluated cognitive-related functioning scores related to chemotherapy in GI cancer patients were included. Information about each study such as CICI findings, study limitations, methodology, and sample characteristics was extracted and synthesized. RESULTS A total of 19 studies were included. Evidence of CICI was found in 50.0% (8 of 16) and 62.5% (5 of 8) studies that used objective and subjective measures, respectively. Methodological differences such as groups used for comparison, instruments used, and assessment from the length of time since chemotherapy were highlighted between studies that did and did not find evidence of CICI. CONCLUSIONS This review suggests that the mixed findings can be attributed to the heterogeneous methodologies adopted in the evaluation of CICI in this field. IMPLICATIONS FOR CANCER SURVIVORS Further studies are necessary to establish the presence and chronicity of CICI, and in which groups of patients to facilitate targeted interventions and treatments.
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Affiliation(s)
- Jerrald Lau
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Athena Ming-Gui Khoo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lina Choe
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Alyssa Hoon
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ker-Kan Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
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Melara RD, Ahles TA, Prashad N, Fernbach M, Edelman JA, Root J. Longitudinal Effects of Breast Cancer Treatment on Neural Correlates of Attention. Arch Clin Neuropsychol 2022; 38:12-24. [PMID: 35901461 PMCID: PMC9868529 DOI: 10.1093/arclin/acac051] [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: 06/28/2022] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVE Cognitive dysfunction has been observed consistently in a subset of breast cancer survivors. Yet, the precise physiological and processing origins of dysfunction remain unknown. The current study examined the utility of methods and procedures based on cognitive neuroscience to study cognitive change associated with cancer and cancer treatment. METHODS We used electroencephalogram and behavioral measures in a longitudinal design to investigate pre- versus post-treatment effects on attention performance in breast cancer patients (n = 15) compared with healthy controls (n = 24), as participants completed the revised Attention Network Test, a cognitive measure of alerting, orienting, and inhibitory control of attention. RESULTS We found no group differences in behavioral performance from pretest to posttest, but significant event-related potential effects of cancer treatment in processing cue validity: After treatment, patients revealed decreased N1 amplitude and increased P3 amplitude, suggesting a suppressed early (N1) response and an exaggerated late (P3) response to invalid cues. CONCLUSIONS The results suggest that treatment-related attentional disruption begins in early sensory/perceptual processing and extends to compensatory top-down executive processes.
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Affiliation(s)
- Robert D Melara
- Corresponding author at: Department of Psychology, City College, City University of New York, 160 Convent Avenue, NAC 7-120, New York, NY 10031, USA. Tel.: +1-212-650-5716. E-mail address: (R. D. Melara)
| | - Tim A Ahles
- Department of Psychiatry and Behavioral Science Services, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Neelam Prashad
- Department of Psychiatry and Behavioral Science Services, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Madalyn Fernbach
- Department of Psychiatry and Behavioral Science Services, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Jay A Edelman
- Department of Biology, City College, City University of New York, New York, New York, USA
| | - James Root
- Department of Psychiatry and Behavioral Science Services, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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Brunet J, Barrett-Bernstein M, Zadravec K, Taljaard M, LeVasseur N, Srikanthan A, Bland KA, Collins B, Kam JWY, Handy TC, Hayden S, Simmons C, Smith AM, Virji-Babul N, Campbell KL. Study protocol of the Aerobic exercise and CogniTIVe functioning in women with breAsT cancEr (ACTIVATE) trial: a two-arm, two-centre randomized controlled trial. BMC Cancer 2020; 20:711. [PMID: 32736542 PMCID: PMC7393840 DOI: 10.1186/s12885-020-07196-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/19/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Up to 75% of women diagnosed with breast cancer report chemotherapy-related cognitive changes (CRCC) during treatment, including decreased memory, attention, and processing speed. Though CRCC negatively impacts everyday functioning and reduces overall quality of life in women diagnosed with breast cancer, effective interventions to prevent and/or manage CRCC are elusive. Consequently, women seldom receive advice on how to prevent or manage CRCC. Aerobic exercise is associated with improved cognitive functioning in healthy older adults and adults with cognitive impairments. Accordingly, it holds promise as an intervention to prevent and/or manage CRCC. However, evidence from randomized controlled trials (RCTs) supporting a beneficial effect of aerobic exercise on CRCC is limited. The primary aim of the ACTIVATE trial is to evaluate the impact of supervised aerobic exercise on CRCC in women receiving chemotherapy for breast cancer. METHODS The ACTIVATE trial is a two-arm, two-centre RCT. Women diagnosed with stage I-III breast cancer and awaiting neo-adjuvant or adjuvant chemotherapy are recruited from hospitals in Ottawa (Ontario) and Vancouver (British Columbia), Canada. Recruits are randomized to the intervention group (aerobic exercise during chemotherapy) or the wait-list control group (usual care during chemotherapy and aerobic exercise post-chemotherapy). The primary outcome is cognitive functioning as measured by a composite cognitive summary score (COGSUM) of several neuropsychological tests. Secondary outcomes are self-reported cognitive functioning, quality of life, and brain structure and functioning (measured by magnetic resonance imaging (MRI)/functional MRI and electroencephalography). Assessments take place pre-chemotherapy (pre-intervention), mid-way through chemotherapy (mid-intervention/mid-wait period), end of chemotherapy (post-intervention/post-wait period; primary endpoint), 16-weeks post-chemotherapy, and at 1-year post-baseline. DISCUSSION Aerobic exercise is a promising intervention for preventing and/or managing CRCC and enhancing quality of life among women diagnosed with breast cancer. The ACTIVATE trial tests several novel hypotheses, including that aerobic exercise can prevent and/or mitigate CRCC and that this effect is mediated by the timing of intervention delivery (i.e., during versus post-chemotherapy). Findings may support prescribing exercise during (or post-) chemotherapy for breast cancer and elucidate the potential role of aerobic exercise as a management strategy for CRCC in women with early-stage breast cancer. TRIAL REGISTRATION The trial was registered with the ClinicalTrials.gov database ( NCT03277898 ) on September 11, 2017.
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Affiliation(s)
- Jennifer Brunet
- School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, 125 University Private, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada.
| | - Meagan Barrett-Bernstein
- School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, 125 University Private, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada
| | - Kendra Zadravec
- Rehabiliation Sciences Graduate Program, Faculty of Medicine, University of British Columbia, T114-2211 Wesbrook Mall, Vancouver, BC, V6T 1Z7, Canada
| | - Monica Taljaard
- The Ottawa Hospital Research Institute, Clinical Epidemiology Program, 501 Smyth Road, Ottawa, ON, K1H 8L6, Canada
| | - Nathalie LeVasseur
- British Columbia Cancer Agency, Vancouver, 600 West 10th Avenue, Vancouver, BC, V5Z 4E6, Canada
| | - Amirrtha Srikanthan
- Department of Medicine, The Ottawa Hospital, 501 Smyth Road, Ottawa, ON, K1H 8L6, Canada
| | - Kelcey A Bland
- Mary MacKillop Institute for Health Research, Australian Catholic University, Level 5, 215 Spring Street, Melbourne, VIC, 3000, Australia
| | - Barbara Collins
- School of Psychology, Faculty of Social Sciences, University of Ottawa, 136 Jean-Jacques Lussier, Vanier Hall, Ottawa, ON, K1N 6N5, Canada
| | - Julia W Y Kam
- Department of Psychology & Hotchkiss Brain Institute, University of Calgary, 2500 Campus Drive, Calgary, AB, T2N 1N4, Canada
| | - Todd C Handy
- Department of Psychology, University of British Columbia, 3406-2136 West Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Sherri Hayden
- Division of Neurology/Faculty of Medicine, University of British Columbia, P213-2211 Westbrook Mall, Vancouver, BC, V6T 2B5, Canada
| | - Christine Simmons
- British Columbia Cancer Agency, Vancouver, 600 West 10th Avenue, Vancouver, BC, V5Z 4E6, Canada
| | - Andra M Smith
- School of Psychology, Faculty of Social Sciences, University of Ottawa, 136 Jean-Jacques Lussier, Vanier Hall, Ottawa, ON, K1N 6N5, Canada
| | - Naznin Virji-Babul
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, 2215 Westbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Kristin L Campbell
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, 2215 Westbrook Mall, Vancouver, BC, V6T 1Z3, Canada
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