Laura Dawson
@ldawsonmd
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Radiation oncologist. Prof. & Chair Dept. Rad. Oncology. U of Toronto. Princess Margaret Cancer Centre. Liver cancer. ASTRO Past President. Tweets are my own.
Toronto, Ontario
Joined May 2019
Proud to see RTOG1112 RCT published!. Thanks to so many who helped make this possible. #teamwork ‘Hope the next #SBRT #HCC trials are completed much faster. @NRGonc @TedHong9 @Dr_AliHosni @ArndtVogel @aislingbarryro Nice summary of the trial below from @NiuSanford
RTOG 1112 finally out! Sorafenib +/- SBRT in HCC. Congrats to @ldawsonmd & team. Brief summary here & some of my thoughts. Short thread 🧵. 1/
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Congrats @daniellerodin! What an inspiring lecture and special day. @marykge @KeithStewartSCG @pmcancercentre @uoftmedicine
Congrats to Dr. @daniellerodin, recipient of the 2025 Janet Rossant Lectureship, who delivered an inspiring talk at Massey College: “Cancer Care at a Crossroads: Balancing Innovation, Cost, and Equity”. This honour celebrates her leadership in equitable, innovative cancer care.
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Please consider activating and accruing! This is a really important RCT.
Protocol Activation! Effective October 07, 2025, NRG-GI012 is open to patient entry. NRG-GI012: Phase III Randomized Trial of IO-Based Systemic Treatment +/- Liver SBRT in Hepatocellular Cancer with Macrovascular Invasion (HELIO-RT) @MGHCancerCenter
https://t.co/CuJc83UqSF
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Extra-ordinary data from 🇺🇸 highlighting the relative lack of investment in #radiationoncology compared to anti-cancer drugs 2010 🟰#RADONC $3.4B : #SACT=$6.6B 2021 🟰#RADONC $3.5B : #SACT=$43.9B Imagine if we had a 10 fold increase in spending on #radiotherapy technology?
The @USCBO Congressional Budget Office released "Growth in the 340B Drug Pricing Program" On Sept 2, 2025 https://t.co/5VtXZtyuRG For comparison, I made a graph of "Growth in Radiation Oncology #radonc Spending" over the same time period
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Thanks to all who joined us for the UTDRO Alumni Reception at @ASTRO_org 2025 in San Francisco! It was a wonderful evening reconnecting with colleagues, alumni, and friends from around the world. Congrats to this year’s UTDRO Alumni Award recipient, Dr. Humza Nusrat @hznus !
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🚨 NRGGU006: prospectively validated 🎯 PAM50 = predictive 🔬 biomarker for ARPI in #ProstateCancer! Adding apalutamide 💊 to salvage RT (no ADT) boosted 5-yr bPFS (72% vs 54%) & MFS (95% vs 82%) in luminal B tumors ➡️ no benefit in others. @DrSpratticus
#ASTRO25 #RadOnc
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👏 Congrats to Dr. Byoung Hyuck Kim & colleagues on presenting the randomized LoRD-KNeA trial at #ASTRO25 💡 3 Gy in 6 fractions --> modest clinical benefit in mild–moderate knee OA 🤔 0.3 Gy & sham arms also improved - likely placebo + natural OA ups/downs ✅ No
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Great honor to be introducing our Herman Suit MD DPhil Legacy Plenary Speaker @_MichaelBaumann at 9 am at the #RadRes2025 Meeting🙏 Dr Baumann will give us a deep dive into #precisiononcology for #radiotherapy🔥 And let's remember: “We discuss science not to make a convert of
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Counterview from Dr. Nipun Merchant from @SylvesterCancer that won the debate by 100%🎖️vs. @michael_lidsky noting the post-hoc analyses of #CAIRO5 demonstrating the role of #liverdirectedtherapy in #colorectalcancer #cancer w/ ⬆️ OS. #cancerresearch #HAI @YJanjigianMD
1st debate of Day #2 @GreatDebatesCME #miami with @michael_lidsky @DukeCancer vs. Dr. Nipun Merchant @SylvesterCancer #GDST #cancer #cancerresearch with fantastic insight of pluses/minuses of #liverdirectedtherapy #HAI #crcsm #colorectal. Very informative! @YJanjigianMD
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We're excited to introduce our new 2025 Radiation Oncology Fellows at @UofTDRO! 📷Learn more about them: https://t.co/alq76BOS8B
@jenncroke #radonc #UofTDRO
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Congratulations @DKirschMDPhD ! @UofTDRO
🎉Congratulations to @DKirschMDPhD on receiving the 2025 Nobility in Science Award from @CureSarcoma, for his groundbreaking research into bone and soft tissue sarcomas, his leadership in clinical trials, and mentorship of the next generation of cancer researchers.
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🌍Sep 7, 2025 marked the inaugural #WorldRadiotherapyAwarenessDay! Radiotherapy is vital in cancer care - curing, controlling & supporting patients worldwide. At @UofTDRO, we’re proud to train future leaders & drive innovation in #RadiationOncology. 💙One Voice for #Radiotherapy
We chose the theme of One Voice for our inaugural year of World Radiotherapy Awareness Day because we want everyone working in the field to join together and speak up for the millions around the world who do not have access to safe, high-quality radiotherapy.
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Congrats to Matthew McMillan @MSKCancerCenter @MSK_RadOnc #WCLC25 on presenting the secondary analysis of #CURB trial, highlighting the importance of tumor volume burden in prognosis. @xrtGenomics
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Honoured to be named a Fellow of the Canadian Academy of Health Sciences, and grateful for this recognition that reflects the efforts of so many colleagues, collaborators, mentors and students who I have worked with over many years. #teamwork #radonc
🎉Big congrats to our professor and chair, Dr. Laura Dawson @ldawsonmd, on being named one of just 47 Fellows of the Canadian Academy of Health Sciences (FCAHS)! This national honour celebrates her leadership and remarkable contributions to academic health sciences.
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Congratulations to @UHN's Drs. @ldawsonmd, Natasha Leighl, and @milicaruoft on being elected Fellows of the Canadian Academy of Health Sciences—one of Canada's highest honours in health sciences. This distinction recognizes outstanding contributions to the field. 🎉
Forty-seven new Fellows elected to the Canadian Academy of Health Sciences. View the full list of 2025 new Fellows here: https://t.co/IjMFSuZcoD
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This is sure to be a fantastic session early Sun morning at #ASTRO25. I am looking forward to it!
As you make travel plans for #ASTRO25 in SF, please consider joining us for our liver/pancreas PRO session! In 75 minutes we will discuss pt selection for RT, novel trials, treatment technique, response assessment for pancreas & liver SBRT, and more. Sunday, 9/28, 7:55 AM 🌞
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NEW EPISODE on the pragmatic PREEMPT Study (NRG-CC014) comparing the effects of adding RT to usual care on the occurrence of bone-related complications for patients w/ high-risk bone mets that are asymptomatic https://t.co/OSMLZzmDzK
#bonecancer @ErinGillespieMD @FredHutch
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These are amazing videos, @NiuSanford! Thanks for sharing your knowledge.
Thank you so much!🙏 My goal is to demystify rad onc (& GI onc). Channel link is here btw. Planning for more videos to come! https://t.co/TCPF25OEPo
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Good trials beget good trials! RTOG 1112 ➡️ GI012 (HELIO-RT) ☢️ @ldawsonmd Dr. Jennifer Wo @MassGenBrigham Let’s keep our seats at the HCC table & enroll our pts: BCLC Class C w/ MVI! @NRGonc @RTOGFoundation
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Seeing @ldawsonmd present data highlighting the important role of RT ☢️ in HCC management is always a treat! Does your pt have HCC w/ MVI? Consider SBRT per RTOG 1112! Dose doesn’t even need to be that high 😉 (Avg ~35 Gy / 5 Fx) @NRGonc @RTOGFoundation
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