Browsing by Author "Rajaraman, Murali"

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    Patient and tumor factors contributing to distant metastasis in well-differentiated thyroid cancer: a retrospective cohort study
    (2020-11-16) Khan, Usman; Al Afif, Ayham; Aldaihani, Abdullah; MacKay, Colin; Rigby, Matthew H; Rajaraman, Murali; Imran, Syed A; Bullock, Martin J; Taylor, S. M; Trites, Jonathan R B; Hart, Robert D
    Abstract Background Distant metastasis in thyroid cancer significantly reduces survival in patients with well-differentiated thyroid carcinoma (WDTC). There is limited information available to clinicians regarding pathological features that confer a higher risk of distant metastasis (DM). This study aimed to identify patient and tumor factors that were associated with the development of DM over time in patients with WDTC. Methods A retrospective cohort analysis of patients with WDTC (n = 584) at our institution was performed between 2007 and 2017. A total of 39 patients with DM and 529 patients with no DM (NDM) were included. Patient demographics, tumor characteristics and patient survival were compared between the DM and NDM groups using a univariate analysis. Multivariate Cox-proportional hazards model was used to evaluate the risk of developing distant metastasis over time. Kaplan-Meier analysis was used to compare survival between the DM and NDM groups. Results Distant metastasis had a substantial impact on disease-specific survival (DSS) at 5 and 10-years in the DM group; 71.0% (SE 8.4%) and 46.9% (SE 11.6%) respectively, compared to 100% survival in the NDM group (p < 0.001). The DM group had significantly higher proportions of males, lymphovascular invasion (LVI), nodal metastasis (NM), large tumor size (TS), extrathyroidal extension (ETE), positive resection margins, multifocality, follicular thyroid cancer (FTC), tall cell variant of papillary thyroid cancer (PTC), and Hurthle cell carcinoma (HCC), when compared to the NDM group (p < 0.05). A TS ≥ 2 cm (Hazard Ratio (HR) 1.370), NM (HR 3.806) and FTC (HR 7.068) were associated with a significantly increased hazard of developing distant metastasis in patients with WDTC. Conclusions TS ≥ 2 cm, NM and FTC are associated with a significantly increased propensity for developing DM in our cohort of WDTC patients. Graphical abstract
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    Treatment de-escalation for HPV-associated oropharyngeal squamous cell carcinoma with radiotherapy vs. trans-oral surgery (ORATOR2): study protocol for a randomized phase II trial
    (2020-02-14) Nichols, Anthony C; Lang, Pencilla; Prisman, Eitan; Berthelet, Eric; Tran, Eric; Hamilton, Sarah; Wu, Jonn; Fung, Kevin; de Almeida, John R; Bayley, Andrew; Goldstein, David P; Eskander, Antoine; Husain, Zain; Bahig, Houda; Christopoulous, Apostolos; Hier, Michael; Sultanem, Khalil; Richardson, Keith; Mlynarek, Alex; Krishnan, Suren; Le, Hien; Yoo, John; MacNeil, S. D; Mendez, Adrian; Winquist, Eric; Read, Nancy; Venkatesan, Varagur; Kuruvilla, Sara; Warner, Andrew; Mitchell, Sylvia; Corsten, Martin; Rajaraman, Murali; Johnson-Obaseki, Stephanie; Eapen, Libni; Odell, Michael; Chandarana, Shamir; Banerjee, Robyn; Dort, Joseph; Matthews, T. W; Hart, Robert; Kerr, Paul; Dowthwaite, Samuel; Gupta, Michael; Zhang, Han; Wright, Jim; Parker, Christina; Wehrli, Bret; Kwan, Keith; Theurer, Julie; Palma, David A
    Abstract Background Patients with human papillomavirus-positive (HPV+) oropharyngeal squamous cell carcinoma (OPC) have substantially better treatment response and overall survival (OS) than patients with HPV-negative disease. Treatment options for HPV+ OPC can involve either a primary radiotherapy (RT) approach (± concomitant chemotherapy) or a primary surgical approach (± adjuvant radiation) with transoral surgery (TOS). These two treatment paradigms have different spectrums of toxicity. The goals of this study are to assess the OS of two de-escalation approaches (primary radiotherapy and primary TOS) compared to historical control, and to compare survival, toxicity and quality of life (QOL) profiles between the two approaches. Methods This is a multicenter phase II study randomizing one hundred and forty patients with T1–2 N0–2 HPV+ OPC in a 1:1 ratio between de-escalated primary radiotherapy (60 Gy) ± concomitant chemotherapy and TOS ± de-escalated adjuvant radiotherapy (50–60 Gy based on risk factors). Patients will be stratified based on smoking status (< 10 vs. ≥ 10 pack-years). The primary endpoint is OS of each arm compared to historical control; we hypothesize that a 2-year OS of 85% or greater will be achieved. Secondary endpoints include progression free survival, QOL and toxicity. Discussion This study will provide an assessment of two de-escalation approaches to the treatment of HPV+ OPC on oncologic outcomes, QOL and toxicity. Results will inform the design of future definitive phase III trials. Trial Registration Clinicaltrials.gov identifier: NCT03210103. Date of registration: July 6, 2017, Current version: 1.3 on March 15, 2019.