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Dra. María Natalia Gandur Quiroga· @nataliagandur · X·· 20 hours agoScore70

KEYNOTE-866

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🚨⭐ #ESMO26 | GU ONCOLOGY — DAY 1 HIGHLIGHTS
@urologysummit

A remarkable opening day in GU oncology — from perioperative immunotherapy to ctDNA, targeted therapy, and next-generation treatments.

The strongest message for me?

More treatment is not automatically better treatment.

🟠 1️⃣ KEYNOTE-866 | 4735O

Perioperative pembrolizumab + gemcitabine/cisplatin did not significantly improve EFS in cisplatin-eligible MIBC.

📊 EFS HR 0.88 (95% CI 0.71–1.10), p=0.1366
pCR: 44.4% vs 35.8%

💡 A higher pathological response did not translate into a significant EFS benefit.

🟠 2️⃣ ENERGIZE | 4736O

Perioperative nivolumab + chemotherapy also failed to meet its co-primary endpoints.

📊 EFS HR 0.94, p=0.6697
pCR: 39.1% vs 29.6%

Another reminder that response endpoints must be interpreted alongside durable outcomes.

🟠 3️⃣ KEYNOTE-905 / KEYNOTE-B15 | 4733O / 4734O

In exploratory KEYNOTE-905 analyses, EV + pembrolizumab favored surgery alone:

✅ OS HR 0.48
✅ pCR 58.8% vs 25.3% with pembrolizumab alone and 10.3% with surgery alone

In KEYNOTE-B15:

🧬 ctDNA clearance: 82.1% vs 66.7% with EV+pembro vs GC

ctDNA positivity correlated with poorer EFS.

Promising for risk stratification — but ctDNA-guided treatment still needs prospective validation.

🟠 4️⃣ TROPHY-U-01 Cohort 7 | 4742O

SG + EV + zimberelimab in untreated metastatic urothelial cancer:

✅ ORR 81%
✅ Median PFS 19.3 mo
✅ Median DoR 16.7 mo

⚠️ Very promising, but phase Ib, only 21 patients, and substantial toxicity.

🔵 5️⃣ CAPItello-281 | LBA56

In PTEN-deficient de novo mHSPC:

Capivasertib + abiraterone vs placebo + abiraterone

✅ Median OS 57.4 vs 46.5 mo
HR 0.82 (95% CI 0.68–0.99)

But the prespecified significance threshold was not met.

An encouraging survival signal — not yet a formally established OS benefit.

🔵 6️⃣ THE NEXT FRONTIER IN PROSTATE CANCER

☢️ PSMA-targeted radioligand therapy
🧬 AR degraders & RIPTACs
💊 Next-generation ADCs
🔬 T-cell engagers & precision immunotherapy

The challenge now is converting biological activity into durable benefit, manageable toxicity, and better patient selection.

⭐ MY POINT OF VIEW

Three principles stood out today:

✅ Survival and metastasis-prevention endpoints matter
✅ Biomarkers must move from prognostic value to therapeutic guidance
✅ Novel combinations must justify both efficacy and toxicity

The future of GU oncology is not simply intensification. It is smarter, biologically informed treatment selection.

🎯 Right strategy. Right patient. Right time.

@gbanna74 @ravikanesvaran @neerajaiims @PGrivasMDPhD @Sebastiano_Buti @dmukherji @alison_tree @DrYukselUrun @yekeduz_emre @AgrawalTrush

@ONCOassist @VuMedi @ProstateUK @OncologyNT @OncJournal

#GUOncology #BladderCancer #ProstateCancer #MIBC #mHSPC #PrecisionOncology

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Conference abstracts
4735Omatched by Proffered paper 1: Genitourinary tumour, renal and urothelial

Perioperative pembrolizumab (pembro) or placebo (pbo) + neoadjuvant cisplatin (cis) and gemcitabine (gem) in participants (pts) with muscle-invasive bladder cancer (MIBC): the double-blind, phase 3 KEYNOTE-866 study

https://esmocongress.esmo.org
引用@
🚨⭐ #ESMO26 | GU ONCOLOGY — DAY 1 HIGHLIGHTS @OncoAlert 🟠🔵 From perioperative immunotherapy to molecular precision and next-generation treatments. A remarkable opening day in GU oncology, with important lessons for both #BladderCancer and #ProstateCancer. Here are our key scientific takeaways 👇 🟠 1️⃣ KEYNOTE-866 Abstract 4735O ❌ Perioperative pembrolizumab + gemcitabine/cisplatin failed to significantly improve EFS in cisplatin-eligible MIBC. 📊 EFS HR 0.88 (95% CI 0.71–1.10) p=0.1366 pCR: 44.4% vs 35.8% 💡 Higher pathological response did not translate into a statistically significant EFS benefit. 🟠 2️⃣ ENERGIZE Abstract 4736O ❌ Perioperative nivolumab + chemotherapy also failed to meet its co-primary endpoints. 📊 EFS HR 0.94; p=0.6697 pCR: 39.1% vs 29.6% 🔬 These findings reinforce the need to interpret response endpoints alongside durable clinical outcomes. 🟠 3️⃣ KEYNOTE-905 & KEYNOTE-B15 | 4733O / 4734O ✅ The exploratory three-arm KEYNOTE-905 analysis favored EV + pembrolizumab over surgery alone. 📊 OS HR 0.48 pCR: 58.8% vs 25.3% with pembrolizumab alone and 10.3% with surgery alone. 🧬 KEYNOTE-B15: ctDNA clearance with EV + pembrolizumab vs gemcitabine/cisplatin: ✅ 82.1% vs 66.7% ctDNA positivity was associated with poorer EFS. 📌 Molecular monitoring offers exciting opportunities for risk stratification, but ctDNA-guided treatment decisions still require prospective validation. 🟠 4️⃣ TROPHY-U-01 COHORT 7 4742O 💊 SG + EV + zimberelimab in untreated metastatic urothelial cancer. ✅ ORR: 81% ✅ Median PFS: 19.3 months ✅ Median DoR: 16.7 months ⚠️ Phase Ib, only 21 patients, with substantial toxicity. Promising—but not yet practice-changing. 🔵 5️⃣ CAPItello-281 LBA56 Updated overall survival in PTEN-deficient de novo mHSPC. 📊 Capivasertib + abiraterone vs placebo + abiraterone: ✅ Median OS: 57.4 vs 46.5 months HR 0.82 (95% CI 0.68–0.99) ⚠️ The prespecified statistical significance threshold was not met. An encouraging survival signal, but not a formally established OS benefit. 🔵 6️⃣ THE NEXT FRONTIER IN PROSTATE CANCER Today's educational sessions highlighted major advances in: ☢️ PSMA-targeted radioligand therapy 🧬 AR degraders and RIPTACs 💊 Next-generation ADCs 🔬 T-cell engagers and precision immunotherapy The key challenge is moving from promising biological activity toward durable clinical benefit, acceptable toxicity and better patient selection. ⭐ POINT OF VIEW More treatment does not always mean better outcomes. And an impressive response rate does not automatically establish a new standard of care. Today's data reinforce three essential principles: ✅ Robust survival endpoints matter. ✅ Biomarkers must move from prognostic value to validated therapeutic guidance. ✅ Novel combinations require careful assessment of efficacy, toxicity and clinical applicability. 💡 The future of GU oncology is not simply treatment intensification—it is smarter, biologically informed treatment selection. 🎯 The right strategy. The right patient. The right time. Outstanding scientific discussions throughout Day 1! @gbanna74 @ravikanesvaran @nataliagandur @neerajaiims @Sebastiano_Buti @CinziaConted @dralishadamani @amg120395 @PGrivasMDPhD @koshkin85 @MicheleMaffezz @ParamMariappan @dmukherji @VanitaNoronha @montypa @DanieleRaggi83 @PasRescigno @jteoh_hk @alison_tree @DrYukselUrun @yekeduz_emre @AgrawalTrush @ONCOassist @VuMedi @ProstateUK @OncologyNT @OncJournal #GUOncology #BladderCancer #ProstateCancer #mCRPC #MIBC #PrecisionOncology
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Source: Dra. María Natalia Gandur Quiroga · x.com

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