Petros Grivas
@PGrivasMDPhD
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Oncologist, Professor, clinical/translational research, Genitourinary Cancers, bladder, prostate, testis, Univ of Washington, Fred Hutch; views are mine
Seattle, WA
Joined July 2015
I agree @achoud72 fantastic camaraderie, friendship, scholarship! Looking forward to Amsterdam Dec 2-5, 2026! @mirrorsmed @OncoAlert @DrFelixGuerrero @DanieleRaggi83 @Silke_Gillessen @Achard_Verane @bkonety @bm_deruiter @daandm @b_szabados @UroMoschini @LAUrology_NL @mdesantis234
What a lovely memento of the #BLADDR25 family. Looking forward to #BLADDR26 in #Amsterdam - come & join us - Dec 2-5 2026! @mirrorsmed @issecam #PROSCA25 #RENALC25
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Important work by colleagues @fredhutch led by brilliant Pete Nelson, Bose et al. Deep molecular assessment of LNCaP model: major lessons learned about tumor heterogeneity & prostate Ca treatment resistance; caution on reproduction of results! @OncoAlert
https://t.co/kZvN6SFxm2
pubmed.ncbi.nlm.nih.gov
A cornerstone of research to improve cancer outcomes involves studies of model systems to identify causal drivers of oncogenesis, understand mechanisms leading to metastases, and develop new therap...
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Primary vs Metastasis: Genomic Differences In the analysis of 5,692 matched primary–metastatic samples from 2,846 patients in the AACR Project GENIE database: 🔹️Metastatic tumors show a modest increase in mutation burden 🔹️FGA is higher → reflecting metastatic genomic
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In 2000, the S&P 500 had an elevated trailing P/E of 26, well above its long-term avg. of 14. For the next 11 years, the S&P 500 delivered zero returns! The current S&P 500 trailing P/E is 30 – even higher than 2000. History rhymes. For standardized performance visit our website.
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This was a really useful and DETAILED review in @NatureRevCancer on the impact of concomitant medications on treatment outcomes in patients with cancer receiving immune checkpoint inhibitors (everything from antibiotics to analgesics to supplements) https://t.co/OjIY4XdQKM
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Personalized ctDNA testing for MRD is transforming adjuvant therapy decisions in muscle-invasive bladder cancer. Petros Grivas covers perioperative insights and key trial data in this 30-min webinar. Watch now: https://t.co/3pTTJrClP8... This content was funded by Natera.
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💫🌟IMvigor011 (NEJM 2025) ctDNA-guided adjuvant atezolizumab in muscle-invasive bladder cancer @tompowles1 @cdanicas @AndreaNecchi @DrYukselUrun @dralvaropinto @OncoBellmunt 🔍 Phase III evaluating ctDNA-guided adjuvant immunotherapy after cystectomy. 🧪 Only ctDNA-positive
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Another delay on crypto rules and all eyes are on @SenLummis. Is this about policy… or a generational gap in understanding tech? https://t.co/easJqaldUa
dailycaller.com
President Donald Trump came into office promising to bring forth a golden age. He has sought to modernize American industry.
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Optimal Duration of Androgen Deprivation Therapy With Definitive Radiotherapy for Localized Prostate Cancer: Meta-Analysis https://t.co/K1KnuMLrZg Meta-analysis of over 10,000 patients from 13 randomized trials found that the survival benefit of androgen deprivation therapy
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This is an alert for physicians and patients!
New study evaluates the accuracy and reproducibility of #ChatGPT responses to #BreastCancer Tumor Board Patients. https://t.co/jSex51lUEd ✍️@charlesbalchmd @nlinmd @hoperugo @DrWGradishar @KlimbergV @margenthalerj
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🔬 Who Should Get Screened for Pancreatic Cancer? Insights from #ESMOGI25 🔎 📌 High-Risk Germline Mutations 🧬 STK11 (Peutz-Jeghers): RR ~132 | Lifetime risk: 11–36% 🧬 PRSS1 (Hereditary Pancreatitis): RR 53–87 | Risk up to 55% by age 70 🧬 CDKN2A (FAMMM): RR 20–40 | Risk 17–25%
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"Just-right timing" for fungicide applications can backfire. Agronomist Tim Dahl shares tips for getting the most out of your fungicide in 2026. 🎬
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REVELUTION: Coronary Artery Plaque Progression After ADT in Men w/ #ProstateCancer - RCT Comparing Relugolix vs Leuprolide @sagarapatel @urotoday #SUO25 🌞n=28 ADT alone; n=31 RT + leuprolide; n=31 RT + relugolix 🌞BL and 12 mo coronary CT 🌞vs no ADT: Relugolix -- no
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Fantastic Global Forum GU Oncology in Lisbon with stellar colleagues, interactive discussions, clinical cases!Next version in Amsterdam Dec 2-5, 2026! @mirrorsmed @OncoAlert @achoud72 @Achard_Verane @LucVanRuysevelt @DanieleRaggi83 @Silke_Gillessen @AOmlin @LAUrology_NL @bkonety
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Great discussion with Emeritus Prof. Peter Whelan who led multiple landmark EORTC trials, & my colleague Kirsty B @Bartscancer, specialist in #Oncogeriatrics. We explored the crucial role of comorbidities in PCa treatment. https://t.co/eHuE6ScQfe
@urotoday @Uroweb @VJOncology
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Episode 4 of EBONY x Nationwide: Amplified Rising Visionaries features NFL linebacker Zaire Franklin, founder of Shelice’s Angels, on instant connections, balance, and building impact on & off the field.
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✨ New evidence in high-risk prostate cancer staging! ✨ A large multi-institutional study from @Uroweb Young Academic Prostate Cancer group shows that patients staged with PSMA-PET before surgery experience better short-term oncologic outcomes than those staged with
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Thanks for sharing @PatrickHwuMD
#ScienceSaturday ❓ How do scientists find the immune cells that are truly fighting a tumor? ➡️ A new @Nature study reveals that powerful tumor-killing T cells may be hiding in plain sight, not as single cells, but in clusters attached to tumor cells or antigen-presenting
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While discussing ctDNA in bladder Ca #SimposioSOGUG25 more data from IM011 becomes available. Negative patients are at low risk while +ves benefit from atezo. These data further support using ctDNA rather than other approaches to select patients for adjuvant IO in UC #SUO2025
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You’ve Chased. Reflected. Revealed. Now it’s time for Lasting Glory. No more hiding behind successes or failures. No more chasing short-lived wins. When your hope is in God’s glory, you serve others, live out your faith and share the Gospel – not just when it’s easy, but always.
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What’s the future of muscle invasive bladder cancer #SimposioSOGUG25 Pathological CR rates of 57% for EVP points towards cystectomy being delayed until maximum EVP effectiveness. Also fewer patients will have cystectomy. Studies are needed to ensure this approach is safe.
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Sadly, we’ve already arrived at the final session of #PROSCA25: “Looking Ahead: PCa Management in 2026.” A multidisciplinary exploration of the future of prostate cancer care featuring perspectives from a urologist (@roodvdb), a radiation oncologist (@ZilliThomas), a medical
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