Benjamin Walbaum, MD (@benjiwal) 's Twitter Profile
Benjamin Walbaum, MD

@benjiwal

Medical Oncologist, Pontificia Universidad Católica Chile.
Breast cancer Clinical and research fellow Hospital Clinic Barcelona.

ID: 566526849

linkhttps://scholar.google.com/citations?view_op=list_works&hl=en&user=fz4xCg0AAAAJ&gmla=AJsN-F7x9Z7RtvW calendar_today29-04-2012 16:25:35

1,1K Tweet

503 Followers

650 Following

Yakup Ergün (@dr_yakupergun) 's Twitter Profile Photo

CDK4/6 Inhibition Beyond Progression in postMONARCH: Are We Seeing the Full Picture? 💥A great editorial offering a critical look at the use of CDK4/6 inhibitors beyond progression, exploring methodological uncertainties and implications for clinical practice.

CDK4/6 Inhibition Beyond Progression in postMONARCH: Are We Seeing the Full Picture?

💥A great editorial offering a critical look at the use of CDK4/6 inhibitors beyond progression, exploring methodological uncertainties and implications for clinical practice.
The Lancet Oncology (@thelancetoncol) 's Twitter Profile Photo

🔴Online now: HER2DX and survival outcomes in early-stage HER2-positive #breastcancer: an individual patient-level meta-analysis Authors: @prat_aleix, Sara Tolaney, and Guillermo Villacampa thelancet.com/journals/lanon…

🔴Online now: HER2DX and survival outcomes in early-stage HER2-positive #breastcancer: an individual patient-level meta-analysis  

Authors: @prat_aleix, <a href="/stolaney1/">Sara Tolaney</a>, and <a href="/G_Villacampa/">Guillermo Villacampa</a> 

thelancet.com/journals/lanon…
Dr Amol Akhade (@suyogcancer) 's Twitter Profile Photo

New JCO Study: ENGOT-OV60/RAMP 201 💊Avutometinib (MEK1/2 inh) + Defactinib (FAK inh) in recurrent LGSOC 🧬 Dual MAPK + FAK blockade = tumor + stroma suppression 🎯 Efficacy: 🔹ORR 31% overall 🔹44% in KRAS-mut vs 17% WT 🔹PFS: 22.0 mo (KRAS-mut), 12.8 mo (WT) 🔹DOR: 31.1 mo

New JCO Study: ENGOT-OV60/RAMP 201
💊Avutometinib (MEK1/2 inh) + Defactinib (FAK inh) in recurrent LGSOC
🧬 Dual MAPK + FAK blockade = tumor + stroma suppression
🎯 Efficacy:
🔹ORR 31% overall
🔹44% in KRAS-mut vs 17% WT
🔹PFS: 22.0 mo (KRAS-mut), 12.8 mo (WT)
🔹DOR: 31.1 mo
Dana-Farber’s Breast Oncology Center (@dfci_breastonc) 's Twitter Profile Photo

Don't miss this JCO Oncology Practice review which discusses the need to redefine human epidermal growth factor receptor 2 testing in #BreastCancer in the era of novel #AntibodyDrugConjugates. pubmed.ncbi.nlm.nih.gov/40359470/ Eleonora Nicolò Caterina Gianni Paolo Tarantino #HER2 #HER2low

Don't miss this <a href="/JCOOP_ASCO/">JCO Oncology Practice</a> review which discusses the need to redefine human epidermal growth factor receptor 2 testing in #BreastCancer in the era of novel #AntibodyDrugConjugates. 
pubmed.ncbi.nlm.nih.gov/40359470/
<a href="/eleonora_nicolo/">Eleonora Nicolò</a> <a href="/caterina_gianni/">Caterina Gianni</a> <a href="/PTarantinoMD/">Paolo Tarantino</a> 
#HER2 #HER2low
Guilherme Nader Marta (@guinadermarta) 's Twitter Profile Photo

New in BreastCancerResearch - Multicenter study led by KarenVanBaelen of 2,098 pts w/ early ER+/HER2– lobular BC Over 50% had HER2-low tumors—associated with larger size, multifocality & worse DFS/OS vs HER2-0 Key insights for prognosis & treatment strategies OncoAlert

New in <a href="/BCRJournal/">BreastCancerResearch</a> - Multicenter study led by <a href="/VanBaelenKaren/">KarenVanBaelen</a> of 2,098 pts w/ early ER+/HER2– lobular BC

Over 50% had HER2-low tumors—associated with larger size, multifocality &amp; worse DFS/OS vs HER2-0

Key insights for prognosis &amp; treatment strategies

<a href="/OncoAlert/">OncoAlert</a>
Dana-Farber’s Breast Oncology Center (@dfci_breastonc) 's Twitter Profile Photo

Dr Hal Burstein (@HaroldBurstein) moderated the Early #BreastCancer Tumor Board at the #HarvardBreastCancerCourse, where breast oncology experts, Dr. E Mittendorf #FainaNakhlis Ada Waks Brittany Bychkovsky, MD, Filipa Lynce, MD, FASCO 🇵🇹 🇺🇸 and #JuliaWong, discussed early breast cancer management through

Dr Hal Burstein (@HaroldBurstein) moderated the Early #BreastCancer Tumor Board at the #HarvardBreastCancerCourse, where breast oncology experts, <a href="/EMittendorfMD/">Dr. E Mittendorf</a> #FainaNakhlis <a href="/adawaksmd/">Ada Waks</a>  <a href="/DrBBychkovsky/">Brittany Bychkovsky, MD</a>, <a href="/FilipaLynce/">Filipa Lynce, MD, FASCO 🇵🇹 🇺🇸</a> and #JuliaWong, discussed early breast cancer management through
Nancy Lin, MD (@nlinmd) 's Twitter Profile Photo

Now published! Phase 1/2 palazestrant (OP-1250) monotherapy in ER+ MBC -at RP2D 120 mg/d -mPFS 4.8 mo overall, 5.6 mo in ESR1mut -in “EMERALD eligible” pts (1-2 prior ET for MBC +/- 1L chemo), mPFS > 7 mo regardless of ESR1 status pubmed.ncbi.nlm.nih.gov/40598566/

Now published!
Phase 1/2 palazestrant (OP-1250) monotherapy in ER+ MBC

-at RP2D 120 mg/d
-mPFS 4.8 mo overall, 5.6 mo in ESR1mut
-in “EMERALD eligible” pts (1-2 prior ET for MBC +/- 1L chemo), mPFS &gt; 7 mo regardless of ESR1 status 

pubmed.ncbi.nlm.nih.gov/40598566/
Vivek Subbiah, MD (@viveksubbiah) 's Twitter Profile Photo

✍️ Writing is thinking. 👉🏼A powerful editorial in Nature Reviews Bioengineering (Vol. 3, p. 431, 2025) reminds us of something timeless: in science, writing is far more than reporting results. It’s a way of sharpening thought. 👉🏼Even in an age shaped by large-language models,

✍️ Writing is thinking.

👉🏼A powerful editorial in Nature Reviews Bioengineering (Vol. 3, p. 431, 2025) reminds us of something timeless: in science, writing is far more than reporting results. It’s a way of sharpening thought.

👉🏼Even in an age shaped by large-language models,
Dana-Farber’s Breast Oncology Center (@dfci_breastonc) 's Twitter Profile Photo

Here's the most recent #BreastCancer Research Digest-a summary of last week’s publications from select high-impact journals (July 11th-18th, 2025). #ClinicalResearch #CancerTreatment #BCSM #BreastCancerResearch

Here's the most recent #BreastCancer Research Digest-a summary of last week’s publications from select high-impact journals (July 11th-18th, 2025). #ClinicalResearch #CancerTreatment #BCSM #BreastCancerResearch
Elisa Agostinetto (@elisaagostinett) 's Twitter Profile Photo

Out in BreastCancerResearch the results of a phase 1/2 trial testing palazestrant, a new endocrine therapy that retains a unique mechanism of action as CERAN (Complete Estrogen Receptor Antagonist) and SERD The phase 3 trial (OPERA-01) is ongoing OncoAlert …ast-cancer-research.biomedcentral.com/articles/10.11…

Out in <a href="/BCRJournal/">BreastCancerResearch</a> the results of a phase 1/2 trial testing palazestrant, a new endocrine therapy that retains a unique mechanism of action as CERAN (Complete Estrogen Receptor Antagonist) and SERD

The phase 3 trial (OPERA-01) is ongoing 

<a href="/OncoAlert/">OncoAlert</a> 

…ast-cancer-research.biomedcentral.com/articles/10.11…
Luca Licata, MD (@llicata88) 's Twitter Profile Photo

🚨Just out in Clinical Cancer Research our analysis on the recurrence timing after neoadjuvant chemo-immunotherapy in early-stage TNBC We analyzed 5 major trials 👉 Early relapse: up to 83% of all recurrences🤯 1/ 🧵 Why this matters 👇 🔗 Full article: doi.org/10.1158/1078-0…

🚨Just out in <a href="/CCR_AACR/">Clinical Cancer Research</a> our analysis on the recurrence timing after neoadjuvant chemo-immunotherapy in early-stage TNBC

We analyzed 5 major trials
👉 Early relapse: up to 83% of all recurrences🤯

1/ 🧵 Why this matters 👇

🔗 Full article: doi.org/10.1158/1078-0…
Dr Sarah Sammons (@drsarahsam) 's Twitter Profile Photo

There is an urgent need for a new age algorithm that takes huge existing data sets and calculates 3,5,10 year benefits to Chemotherapy, endocrine therapy, CDK4/6i and bisphosphonates in adjuvant HR+,HER2- Breast Cancer. Predict NHS but new and better. I’m sure AI could help.

Guilherme Nader Marta (@guinadermarta) 's Twitter Profile Photo

Last spring, the ELBCC brought together experts, researchers, and advocates to tackle the toughest clinical challenges in invasive lobular breast cancer After months of collaboration, our work is now out in Annals of Oncology — and I’m excited to share some key takeaways 🧵

Dana-Farber’s Breast Oncology Center (@dfci_breastonc) 's Twitter Profile Photo

Drs. Sarah Sammons (Dr Sarah Sammons) and Kristina Fanucci (Kristina Fanucci) recently updated our consensus based #TreatmentGuideline on the use of #Capivasertib plus #Fulvestrant in patients with advanced estrogen receptor-positive #BreastCancer. 👉physicianresources.dana-farber.org/flexpaper/capi… #MBC

Drs. Sarah Sammons (<a href="/drsarahsam/">Dr Sarah Sammons</a>) and Kristina Fanucci (<a href="/KristinaFanucci/">Kristina Fanucci</a>) recently updated our consensus based #TreatmentGuideline on the use of #Capivasertib plus #Fulvestrant in patients with advanced estrogen receptor-positive #BreastCancer. 
👉physicianresources.dana-farber.org/flexpaper/capi… #MBC
Dr Akhil Santhosh (@tuttsakhil) 's Twitter Profile Photo

Circulating tumor DNA mutational landscape and dynamics after progression on a CDK4/6 inhibitor in the PACE phase II trial for metastatic HR-positive/HER2-negative breast cancer☆ -ESMO Open esmoopen.com/article/S2059-…

Oscar Tahuahua (@oscartahuahua) 's Twitter Profile Photo

🧵POSITIVE trial changes how we counsel young HR+ Breast cancer pts ✅74% conceived after pausing endocrine therapy, 65% even with AMH <0.5 ng/mL 🤰Low ovarian reserve ≠ No chance. 📉 LOR was the strongest predictor of reduced fertility 1/3 thebreastonline.com/article/S0960-… OncoAlert

🧵POSITIVE trial changes how we counsel young HR+ Breast cancer pts

✅74% conceived after pausing endocrine therapy, 65% even with AMH &lt;0.5 ng/mL

🤰Low ovarian reserve ≠ No chance. 
📉 LOR was the strongest predictor of reduced fertility
1/3
thebreastonline.com/article/S0960-… <a href="/OncoAlert/">OncoAlert</a>