Don Thiwanka Wijeratne

Don Thiwanka Wijeratne


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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27 September 2022 in BMC Rheumatology
Verified
Journal Article
Open access
PDF file
SSSamantha Sarabia
Samantha Sarabia
BRBrandan Ranjith
Brandan Ranjith
SKSahil Koppikar
Sahil Koppikar
DWDon Thiwanka Wijeratne
Don Thiwanka Wijeratne
Background: JAK inhibitors are a relatively new class of medications that may be useful in the treatment of moderate-to-severe psoriasis and psoriatic arthritis (PsA). The objective of this study was to determine the efficacy of several JAK inhibitors in treating psoriasis and PsA and examine safety concerns. Methods: MEDLINE, Cochrane and EMBASE were searched for randomized controlled trials and observational studies comparing any JAK inhibitor to placebo. The primary outcomes were a 75% improvement in the Psoriasis Area and Severity Index (PASI75) and a 20% improvement in the American College of Rheumatology composite score (ACR20). A secondary outcome was the proportion of patients achieving a “0” or “1” on the static Physician Global Assessment scale. Odds ratios were used to compare the proportion of patients reaching these targets in the max dose intervention group vs. the placebo group. A random effects model was used to account for heterogeneity. Results: In total, 15 RCTs were included in the study and no observational studies. This encompassed 6757 patients in total. When the results were combined, the calculated odds ratio for PASI75 amongst tofacitinib vs. placebo was OR 14.35 [95%CI 7.65, 26.90], for PASI75 amongst non-tofacitinib JAK inhibitors vs. placebo it was OR 6.42 [95%CI 4.89, 8.43], for ACR20 amongst all JAK inhibitors versus placebo was OR 5.87 [95%CI 4.39, 7.85]. There was no significant difference in prevalence of serious adverse events between intervention and control in any of these studies. Conclusion: JAK inhibitors show promise for safely treating moderate-to-severe psoriasis and psoriatic arthritis.

27 January 2023 in Cancer Treatment Reviews
Verified
Journal Article
Closed access
BGBishal Gyawali
Bishal Gyawali
MBMeghan Bowman
Meghan Bowman
ISIsobel Sharpe
Isobel Sharpe
MJMatthew Jalink
Matthew Jalink
SSSiddhartha Srivastava
Siddhartha Srivastava
DWDon Thiwanka Wijeratne
Don Thiwanka Wijeratne

1 January 2021 in Therapeutic Advances in Neurological Disorders
Verified
Journal Article
Open access
PDF file
STSusan Thanabalasingam
Susan Thanabalasingam
BRBrandan Ranjith
Brandan Ranjith
RJRobyn Jackson
Robyn Jackson
DWDon Thiwanka Wijeratne
Don Thiwanka Wijeratne
Recent changes to the legal status of cannabis across various countries have renewed interest in exploring its use in Parkinson’s disease (PD). The use of cannabinoids for alleviation of motor symptoms has been extensively explored in pre-clinical studies. We aim to systematically review and meta-analyze literature on the use of medical cannabis or its derivatives (MC) in PD patients to determine its effect on motor function and its safety profile. We reviewed and analyzed original, full-text randomized controlled trials (RCTs) and observational studies. Primary outcomes were change in motor function and dyskinesia. Secondary outcomes included adverse events and side effects. All studies were analyzed for risk of bias. Fifteen studies, including six RCTs, were analyzed. Of these, 12/15 (80%) mention concomitant treatment with antiparkinsonian medications, most commonly levodopa. Primary outcomes were most often measured using the Unified Parkinson Disease Rating Scale (UPDRS) among RCTs and patient self-report of symptom improvement was widely used among observational studies. Most of the observational data lacking appropriate controls had effect estimates favoring the intervention. However, the controlled studies demonstrated no significant motor symptom improvement overall. The meta-analysis of three RCTs, including a total of 83 patients, did not demonstrate a statistically significant improvement in UPDRS III score variation (MD −0.21, 95% CI −4.15 to 3.72; p = 0.92) with MC use. Only one study reported statistically significant improvement in dyskinesia (p < 0.05). The intervention was generally well tolerated. All RCTs had a high risk of bias. Although observational studies establish subjective symptom alleviation and interest in MC among PD patients, there is insufficient evidence to support its integration into clinical practice for motor symptom treatment. This is primarily due to lack of good quality data.

15 July 2021 in Cancers
Verified
Journal Article
Open access
PDF file
DWDon Thiwanka Wijeratne
Don Thiwanka Wijeratne
MBMeghan Bowman
Meghan Bowman
ISIsobel Sharpe
Isobel Sharpe
SSSiddhartha Srivastava
Siddhartha Srivastava
MJMatthew Jalink
Matthew Jalink
Bishal GyawaliBishal Gyawali
Bishal Gyawali
The global cancer disease burden is substantial, resulting in increased economic and clinical strain on our healthcare systems. A proposed solution is text-based communication, which can be used for cancer-supportive care. We conducted a systematic review to synthesize and describe the use of text-based communications for cancer-supportive care. Our population of interest included adult patients with cancer. A total of 18 studies were included in the review: 9 RCTs and 9 non-randomized interventional/observational studies. Patients were largely satisfied with text-based communication during their cancer care. Compared to controls, results for other outcomes including symptoms and quality of life were largely mixed; however, no harms were observed. Furthermore, positive outcomes were seen for specific interventions, such as text message medication reminders. These findings should be considered with caution due to the considerable heterogeneity observed between studies regarding their design and reported outcomes and the high risk of bias associated with 6/18 studies. Overall, this review suggests that text-based communication may be a complementary tool for cancer-supportive care; however, more research is needed to examine the feasibility of implementation and use.

14 July 2022 in ecancermedicalscience
Verified
Journal Article
Open access
LTLan-Linh Truong
Lan-Linh Truong
LSLaura Scott
Laura Scott
RPRaveen S Pal
Raveen S Pal
MJMathew Jalink
Mathew Jalink
SGSanjeeva Gunasekara
Sanjeeva Gunasekara
DWDon Thiwanka Wijeratne
Don Thiwanka Wijeratne
Cancer and cardiovascular disease: can understanding the mechanisms of cardiovascular injury guide us to optimise care in cancer survivors? Lan-Linh Truong1, L

2 July 2025 in HIV Medicine
Verified
Journal Article
Open access
DVDhruv Vinay
Dhruv Vinay
IJIresh Jayaweera
Iresh Jayaweera
MBMeghan Bowman
Meghan Bowman
DWDon Thiwanka Wijeratne
Don Thiwanka Wijeratne
Introduction: Human immunodeficiency virus‐1 (HIV‐1) continues to have a high global burden, with approximately 39.9 million people currently living with the virus. Despite the clinical success of antiretroviral therapy (ART), adherence remains a significant challenge, often due to emotional distress and HIV‐related stigma. Long‐acting injectables (LAIs) such as the combination of cabotegravir (CAB) and rilpivirine (RPV) have emerged as promising alternatives, reducing the burden of daily pill regimens.Methods: This systematic review explores the role of CAB + RPV‐LA injectables in antiretroviral therapy (ART), with a focus on patient‐reported outcomes from five key clinical trials.Results: Findings reveal that CAB + RPV‐LA maintains high levels of viral suppression comparable to daily ART while improving patient satisfaction and quality of life. Meta‐analysis of HIV Treatment Satisfaction Questionnaire (HIVTSQc) scores across multiple trials demonstrated consistent positive outcomes, with a mean score of 28.83 out of a possible range from −33 to +33, indicating a substantial improvement in patient satisfaction compared to baseline. Qualitative data highlight the psychological and logistical benefits of LAIs, including reduced stigma and enhanced treatment convenience.Conclusions: This review underscores the potential of CAB + RPV‐LA in improving patient adherence and satisfaction while offering insights for future studies on longer‐term outcomes of LAI use.