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DrAndrewWeickhardt

@WeickhardtOnc

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An Australian oncologist with an interest in GU malignancies, phase 1 trials, cycling and having fun with the family

Melbourne, Australia
Joined May 2012
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
🧵 Immune resistance in cancer. 🛡️ T-cell exclusion? Target macrophages with PI3Kγ inhibitors (e.g. IPI-549) to open the tumor to immune attack. Chronic interferon = double-edged sword. JAK inhibition redirects exhausted T cells back into action. PD-1 + LAG-3 = durable IO ⚡.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
🚨 IO triplet in RCC hits turbulence. Zanzalintinib + nivolumab = 63% ORR, 18.5 mo PFS. ?benefit over Cabo/Nivo ?less HFS but similar activity. ➕ Adding relatlimab (triplet) ➡️ lower ORR & PFS.🔁 Rethink LAG3 as target RCC, it's not melanoma 😞. #ASCO25.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
#SURE2: Sacituzumab + pembro: 44% CR and 71% bladder-intact EFS in MIBC patients refusing cystectomy.✂️ No chemo, no surgery.🔍 Biomarker-driven selection (luminal subtype, TMB) key?. Are we ready to skip cystectomy?.NMIBC recurrences an issue? .urineDNA to confirm CR?. #ASCO25.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
5-yr data from KEYNOTE-564 confirms OS benefit for adjuvant #pembrolizumab in high-risk clear cell #RCC (HR 0.66). DFS & OS gains across subgroups. 🔥 Confirms OS benefit in adjuvant RCC.🧬 But are we overtreating 48% who never recur?.#ASCO25 #GUonc #Immunotherapy.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
🚨 Practice-changing data at #ASCO25 in #CRC. 🔹 BREAKWATER: Encorafenib + cetuximab + FOLFOX doubles OS vs SOC (30.3 vs 15.1 mo) in BRAF V600E mCRC. 🔹 CheckMate 8HW: NIVO+IPI shows 54.1 mo PFS in MSI-H mCRC— new IO standard.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
🚨 KRAS G12C in CRC: Combo strategies evolving fast. 🧪 G12C inhibitors + anti-EGFR (e.g. cetuximab) show synergy (ORR ~46%). 💥 Adding chemo may boost activity—but ⏫ toxicity, dose interruptions. 📌 Takeaways: – Drug exposure matters.– ctDNA ≠ always concordant. #ASCO25.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
🧬 DYNAMIC-III shows ctDNA-guided chemo escalation in stage III colon cancer did not improve recurrence-free survival vs standard care. But ctDNA clearance post-chemo strongly predicts better outcomes. 40% pts persistent ctDNA despite chemo. Need new options #ASCO25 #CRC.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
🧬 New hope for GU neuroendocrine carcinomas: DLL3-targeted T-cell engager shows a 40% response rate & ~8mo durability in DLL3-high tumors— outperforming chemo or IO in this poor-prognosis group. Biomarker-driven therapy may be here for small cell GU. #ASCO25 #OncTwitter #GUonc.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
#ASCO25 Drug development session: Is HER3 the new HER2—or is it too soon? 🧬. HER3-targeting ADCs show promise in NSCLC & SCLC, but biomarker gaps, resistance issues and payload limits remain. “It’s not too early, but it’s not yet.” Lillian Siu.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
What the #ASCO2025 AI session didn't cover fully (otherwise great talks).1️⃣ Genomic + multi-omic integration platforms.2️⃣ Health equity & bias audit needs.3️⃣ Clinician AI training urgent .4️⃣ Medico-legal liability frameworks for use.5️⃣ Environmental costs of large models ?🔌☢️.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
Real-world AI in cancer care:.✅ ↑ in end-of-life discussions via AI nudges.✅ Increase nurse time in care (↓ documentation).✅ Faster trial screening & protein folding breakthroughs.But trust lags behind tech. Transparency, bias control & safety need urgent attention. #AIOnc.
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@WeickhardtOnc
DrAndrewWeickhardt
2 months
🔍 AI in Oncology #ASCO2025.AI isn’t replacing oncologists—it’s augmenting care. Clinical decision support & ambient scribing to trial matching & drug discovery, AI improves efficiency, nudges evidence-based care, and supports overworked teams. Real challenge? Change management.
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@WeickhardtOnc
DrAndrewWeickhardt
10 months
Vast majority of oncologists would counsel their own relatives and friends strongly to have chemotherapy if they had liver mets and CRPC progressing on ARPI. There's a role for patient choice, but a great responsibility on us to provide sound advice and weighting in fit pts.
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@WeickhardtOnc
DrAndrewWeickhardt
10 months
Totally disagree with recruitment of patients with liver mets to CRPC trials that have a rotation to a different ARPI. There may be a role for that control arm in patients with PSA only or limited radiological progression. 1/2.
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@WeickhardtOnc
DrAndrewWeickhardt
1 year
Enthusiastic audience response to #ASCO24 plenary abstracts today. Great that the organisers were able to schedule @TimmyTrumpet @tiesto @Alesso for after party
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@WeickhardtOnc
DrAndrewWeickhardt
1 year
Fantastic to be back in Chicago catching up on data, catching up with friends @AlbigesL #ASCO24
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@WeickhardtOnc
DrAndrewWeickhardt
2 years
RT @NicoGagelmann: Everytime after a conference🫢🤣
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@WeickhardtOnc
DrAndrewWeickhardt
2 years
EV-Pembro is SOC for 1st line bladder cancer .50% of pts -> neuropathy . Note phase 1 of EV monoRx .1mg/kg cohort: neuropathy 19%, ORR 19% .1.25mg/kg cohort: neuropathy 38%, ORR 43% . Lesson: Don't dose reduce EV upfront.@DrRosenbergMSK @DanielPetrylak .
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@WeickhardtOnc
DrAndrewWeickhardt
2 years
Did not have ‘Running through herd of goats’ on my #ESMO2023 bingo card. But I guess that’s the beauty of Casa de Campo and Madrid. Until next time!
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@WeickhardtOnc
DrAndrewWeickhardt
2 years
Great collaboration with Australian centres. Pleasure to be involved in this. Congratulations @ChrisAleSei.
@AndreaNecchi
Andrea Necchi
2 years
🥂👏 @ChrisAleSei congratulations 🥇for winning the #BestPoster award #testicular&Penile cancers and getting the Rosette! #ESMO2023 @myESMO @ERPlimackMD Axel Bex #HDCT #germcelltumors
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