Electrophysiological Biomarkers of Chemotherapy-related Cognitive Impairment and Recovery
Chemobrain
1 other identifier
observational
45
1 country
1
Brief Summary
Broadly speaking, the goal of this study is to better understand the influence of chemotherapy treatment on the cognitive and neural mechanisms underlying human behavior. Extant literature lacks diversity in studied cancer populations and treatment protocols, and provides limited understanding of the cognitive abilities that are impaired by chemotherapy. To overcome these limitations, this study will employ a sophisticated battery of tests on an understudied cancer population. Eligible participants will either be patients diagnosed with hematological malignancy (HM) or demographically matched healthy control patients. After HM diagnosis and treatment protocols have been established, patients will be inducted into the longitudinal study comprised of three visits: 1) after diagnosis but prior to chemotherapy treatment (baseline), 2) after one treatment cycle (one month post-baseline), and 3) after three treatment cycles (three months post-baseline). Patients will undergo a test battery designed to measure specific behavioral and neural mechanisms of attention; tests will either be computer-based cognitive tasks or simulated driving tests that immerse patients into virtual driving scenarios. During each test, EEG will be concurrently measured through non-invasive scalp electrophysiology recordings; EEG recordings will reveal underlying neural mechanisms affected by chemotherapy. Additionally, neuropsychological tests of vision, attention, and memory will be administered, as well as questionnaires to evaluate health, mobility, and life space. Finally, blood samples will be collected to examine levels of circulating inflammation-specific proteins typically present in cancer patients. This study will allow us to better understand the mechanisms through which chemotherapy influences cognitive performance. Results from this study will influence the administration of chemotherapy treatments so that patients can continue to receive the highest medical care while maintaining optimal cognitive abilities and quality of life.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Sep 2016
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 22, 2016
CompletedFirst Posted
Study publicly available on registry
May 10, 2016
CompletedStudy Start
First participant enrolled
September 1, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 11, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
March 15, 2018
CompletedResults Posted
Study results publicly available
September 6, 2019
CompletedSeptember 29, 2023
September 1, 2023
1.3 years
April 22, 2016
June 12, 2018
September 21, 2023
Conditions
Outcome Measures
Primary Outcomes (4)
Change From Baseline Capture Task Performance at 1- and 3- Months
Response time - measured as the time required to respond to a target hidden among distractor items - is the primary outcome measure of the capture task. Proportional response time was calculated by subtracting mean response time in the neutral condition from response time in the capture condition, and dividing that number by the standard deviation of response time across conditions. Changes in proportional response time across study visits is reported. Positive values correspond to an increase in response time and negative values correspond to a decrease in response time.
Collected at Study Induction, 1 month after Study Induction, 3 months after Study Induction
Change From Baseline N2pc Amplitude at 1- and 3- Months
Electrophysiological component that measures allocation of attentional resources
Collected at Study Induction, 1 month after Study Induction, 3 months after Study Induction
Change From Baseline Filter Task Performance at 1- and 3- Months
Response accuracy - measured as the proportion of correct trials - is the primary outcome measure of the filter task. Changes in response accuracy were calculated by subtracting response accuracy at 1-month and 3-months from baseline response accuracy. Positive values correspond to an increase in accuracy and negative values correspond to a decline in accuracy.
Collected at Study Induction, 1 month after Study Induction, 3 months after Study Induction
Change From Baseline CDA Amplitude at 1- and 3- Months
Electrophysiological component that measures online storage load
Collected at Study Induction, 1 month after Study Induction, 3 months after Study Induction
Study Arms (3)
HM - Chemotherapy
Study patients diagnosed with HM that are scheduled to receive chemotherapy treatment.
HM - No Chemotherapy
Study patients diagnosed with HM that are scheduled to receive non-chemotherapy treatment options.
Healthy Controls
Study participants that are demographically matched to HM study patients and meet all inclusion criteria
Eligibility Criteria
The 2008 World Health Organization (WHO) classification is used to diagnose MDS. Patients diagnosed with MDS are stratified into one of five risk categories, based on a prognostic score calculated according to the revised International Prognostics Scoring System (IPSS-R): very-low risk, low risk, intermediate risk, high risk, and very-high risk. IPSS-R scores are estimated from percent of bone marrow blasts, number and depth of cytopenias, and presence of specific cytogenetic abnormalities, collectively reflecting the total number of risk factors.
You may qualify if:
- HM diagnosis
- scheduled to receive treatment based on risk classification
- between 19 to 80 years of age-
- normal or corrected-to-normal vision
- matched to HM patient demographics (healthy controls)
You may not qualify if:
- non-HM non-cutaneous cancer diagnosis (patients with localized skin cancer may not be excluded)
- prior radiation or chemotherapy treatment
- HM cancer diagnosis (healthy controls)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Nebraska Medical Center
Omaha, Nebraska, 68132, United States
Biospecimen
Blood serum
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- David Anderson
- Organization
- University of Nebraska Medical Center
Study Officials
- PRINCIPAL INVESTIGATOR
Vijaya Bhatt, MD
University of Nebraska
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 22, 2016
First Posted
May 10, 2016
Study Start
September 1, 2016
Primary Completion
December 11, 2017
Study Completion
March 15, 2018
Last Updated
September 29, 2023
Results First Posted
September 6, 2019
Record last verified: 2023-09