Clarissa Schilstra

Dr. Clarissa Schilstra

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 November 2020 in Epilepsy & Behavior
Verified
Journal Article
Closed access
SNSuzanne M. Nevin
Suzanne M. Nevin
CWClaire E Wakefield
Claire E Wakefield
CSClarissa Schilstra
Clarissa Schilstra
BMBrittany C. McGill
Brittany C. McGill
ABAnn Bye
Ann Bye
EPElizabeth E. Palmer
Elizabeth E. Palmer

27 May 2021 in Psycho-Oncology
Verified
Journal Article
Closed access
PDF file
CSClarissa Schilstra
Clarissa Schilstra
JFJoanna E. Fardell
Joanna E. Fardell
MBMary A. Burns
Mary A. Burns
SESarah Ellis
Sarah Ellis
AAAntoinette Catherine Anazodo
Antoinette Catherine Anazodo
USUrsula Sansom-Daly
Ursula Sansom-Daly

15 September 2022 in BMC Cancer
Verified
Journal Article
Open access
PDF file
CSClarissa Schilstra
Clarissa Schilstra
KMKaren McCleary
Karen McCleary
JFJoanna E. Fardell
Joanna E. Fardell
MDMark W. Donoghoe
Mark W. Donoghoe
EMEmma McCormack
Emma McCormack
TTToby Trahair
Toby Trahair
Background: Pediatric acute lymphoblastic leukemia (ALL) therapy is accompanied by treatment-related toxicities (TRTs) and impaired quality of life. In Australia and New Zealand, children with ALL are treated with either Children’s Oncology Group (COG) or international Berlin-Frankfurt-Munster (iBFM) Study Group-based therapy. We conducted a prospective registry study to document symptomatic TRTs (venous thrombosis, neurotoxicity, pancreatitis and bone toxicity), compare TRT outcomes to retrospective TRT data, and measure the impact of TRTs on children’s general and cancer-related health-related quality of life (HRQoL) and parents’ emotional well-being. Methods: Parents of children with newly diagnosed ALL were invited to participate in the ASSET (Acute Lymphoblastic Leukaemia Subtypes and Side Effects from Treatment) study and a prospective, longitudinal HRQoL study. TRTs were reported prospectively and families completed questionnaires for general (Healthy Utility Index Mark 3) and cancer specific (Pediatric Quality of Life Inventory (PedsQL)-Cancer Module) health related quality of life as well the Emotion Thermometer to assess emotional well-being. Results: Beginning in 2016, 260 pediatric patients with ALL were enrolled on the TRT registry with a median age at diagnosis of 59 months (range 1–213 months), 144 males (55.4%), majority with Pre-B cell immunophenotype, n = 226 (86.9%), 173 patients (66.5%) treated according to COG platform with relatively equal distribution across risk classification sub-groups. From 2018, 79 families participated in the HRQoL study through the first year of treatment. There were 74 TRT recorded, reflecting a 28.5% risk of developing a TRT. Individual TRT incidence was consistent with previous studies, being 7.7% for symptomatic VTE, 11.9% neurotoxicity, 5.4% bone toxicity and 5.0% pancreatitis. Children’s HRQoL was significantly lower than population norms throughout the first year of treatment. An improvement in general HRQoL, measured by the HUI3, contrasted with the lack of improvement in cancer-related HRQoL measured by the PedsQL Cancer Module over the first 12 months. There were no persisting differences in the HRQoL impact of COG compared to iBFM therapy. Conclusions: It is feasible to prospectively monitor TRT incidence and longitudinal HRQoL impacts during ALL therapy. Early phases of ALL therapy, regardless of treatment platform, result in prolonged reductions in cancer-related HRQoL.

1 April 2022 in Journal of Adolescent and Young Adult Oncology
Verified
Journal Article
Closed access
CSClarissa Schilstra
Clarissa Schilstra
USUrsula Sansom-Daly
Ursula Sansom-Daly
MSMaria Schaffer
Maria Schaffer
JFJoanna E. Fardell
Joanna E. Fardell
AAAntoinette Catherine Anazodo
Antoinette Catherine Anazodo
SESarah Ellis
Sarah Ellis
Purpose: Involvement of adolescent and young adult (AYAs) cancer survivors as consumers in research is increasingly encouraged, yet few studies have identified the feasibility and acceptability of methods used to involve them. We aimed to identify: (1) How feasible and acceptable is a consumer-driven, workshop-based research priority-setting approach? And (2) what research priorities do Australian AYA consumers endorse? Methods: AYA cancer survivors diagnosed 15–30 years old and currently younger than 35 years were invited to participate. The AYAs completed a pre-workshop survey to rank their top three priorities from the United Kingdom-based James Lind Alliance list, participated in a 90-minute focus group, and completed a post-workshop evaluation survey. We assessed the workshop feasibility by reviewing considerations, challenges, and enablers of success in the planning and conduct processes. Acceptability was assessed through participants' evaluation surveys and facilitators' informal reflections. The top three priorities were determined from pre-workshop surveys and focus group data. Results: Six survivors participated ( M age = 24.2 years, M = 5 years post-treatment, 83% female). All reported that the workshop was an acceptable way to engage with researchers. Costs and recruitment challenges limited the workshop's feasibility. The AYAs' top priority was: What psychological support package improves psychological well-being, social functioning, and mental health during and after treatment? Discussion: The AYA survivors found our workshop to be an acceptable way to engage in research priority-setting. However, the feasibility of this approach depends on the resources available to researchers. Future research is needed to define the optimal method of engagement: What is most acceptable for AYAs and feasible for researchers?

1 April 2022 in Journal of Adolescent and Young Adult Oncology
Verified
Journal Article
Closed access
CSClarissa Schilstra
Clarissa Schilstra
JFJoanna E. Fardell
Joanna E. Fardell
SESarah Ellis
Sarah Ellis
KJKimberley M. Jones
Kimberley M. Jones
AAAntoinette Catherine Anazodo
Antoinette Catherine Anazodo
USUrsula Sansom-Daly
Ursula Sansom-Daly
Purpose: Adolescent and young adult (AYA) cancer survivors may be at risk of developing symptoms of social anxiety disorder (SAD) due to disruptions in social participation and functioning following a cancer diagnosis. This study aimed to explore (1) the proportion of Australian AYA-aged survivors of childhood and adolescent cancer who experience symptoms of SAD, (2) how symptoms of SAD are described by survivors as affecting their daily social functioning. Methods: A mixed-methods cross-sectional design was employed, inviting survivors, aged 13–25 years, who had completed treatment between one and ten years ago. Survivors completed a paper-based questionnaire, containing validated measures of SAD, and an optional semistructured interview assessing current social functioning and social anxiety. Results: Twenty-seven survivors aged 13–25 years participated ( M = 19.15, 51.9% male, and 7 years post-treatment). Nine (33%) participants reported clinically significant symptoms of SAD. In interviews, survivors reported worries about how others perceived them and fears around meeting new people. Survivors described that this impacted their daily social functioning, leading them to avoid, or endure with distress, feared social situations. Conclusion: This study shows that clinically significant social anxiety may be a concern for a subset of survivors of childhood/adolescent cancer. Identifying which young people are at risk of SAD after cancer and how best to support this vulnerable cohort is critical.

20 April 2018 in Journal of Youth Development
Verified
Journal Article
Open access
PDF file
MSMya DeBoer Sendak
Mya DeBoer Sendak
CSClarissa Schilstra
Clarissa Schilstra
ETEitan Tye
Eitan Tye
SBSamuel Brotkin
Samuel Brotkin
GMGary Maslow
Gary Maslow
This study aimed to systematically review all the literature on camps for youth with childhood onset chronic illness (COCI) utilizing the Positive Youth Development (PYD) framework to assess camp processes and psychosocial outcomes. This paper describes a unique dataset of 425 included studies published over the last 70 years and gives a broad overview of camp demographics, processes that align with PYD’s Big 3 (sustained adult-youth relationships, skill-building, and youth leadership) and measured outcomes that align with the PYD’s 5 Cs (Competence, Confidence, Character, Social Connectedness, and Compassion). Among the included studies, 36% included diabetes camps, 15% included camps accepting multiple illnesses, 12% included cancer camps, and 11% included asthma camps. The majority of participants were under the age of 16. While no study explicitly used the PYD approach, over 90% of studies described camps that deployed both active leadership and sustained positive relationships, while only 59% of studies described camps providing the opportunity to learn life skills. Although no study utilized the PYD 5 Cs framework for outcome measurement, 47% addressed outcomes related to Competence, 44% addressed Confidence, 33% addressed Connection, 4% addressed Compassion, and 2% addressed Character. This review highlights opportunities for camp leadership to align their programming with the PYD framework, to incorporate older adolescents and young adults and, ultimately, to improve positive adult outcomes for youth with COCI. It provides a starting point for future research evaluating illness-specific camps using a PYD approach.