Leading today's oncology KOL conversation on X: DeLLphi-305 Meets OS Endpoint in ES-SCLC. The KOL Pulse Daily Digest: what verified physician voices are discussing on X across the major tumor types, ranked by engagement over the last 48 hours.
Toni Choueiri, MD · @DrChoueiri“JUST IN: DeLLphi-305 study met its primary endpoint of overall survival combining tarlatamab (DLL3 BiTE) with PDL1 inhibitor Durvalumab as maintenance after 1L chemotherapy for extensive-stage small cell lung cancer ! Also RR/PFS significant Trial led by @DanaFarber @sands_jacob ! Via @PRNews”
View post ↗Read the full DeLLphi-305 trial profile on KOL Pulse →The DeLLphi-305 study met its primary endpoint of overall survival, with the combination of investigational tarlatamab and durvalumab as maintenance after first-line chemotherapy demonstrating a significant benefit in extensive-stage small cell lung cancer — the first Phase 3 bispecific T-cell engager survival win in this setting, and global KOLs (Choueiri, Halmos, Akhade, Calles, Manochakian, Desai) amplified the readout within hours. In contrast, the SWOG/NRG S1914 trial in early-stage NSCLC was stopped for futility, as adding peri-SBRT atezolizumab did not improve PFS or OS and increased toxicity for medically inoperable patients.

“JUST IN: DeLLphi-305 study met its primary endpoint of overall survival combining tarlatamab (DLL3 BiTE) with PDL1 inhibitor Durvalumab as maintenance after 1L chemotherapy for extensive-stage small cell lung cancer !”
— @DrChoueiri · DeLLphi-305 topline results · View post ↗
“Just one word - starlatamab! A star was born last year at #ASCO25 and looks like now found a steady partner in durvalumab!”
— @BalazsHalmosMD · DeLLphi-305 topline results · View post ↗
“🚨 Landmark development in ES-SCLC! Phase 3 DeLLphi-305 has shown a statistically significant and clinically meaningful OS benefit with tarlatamab (IMDELLTRA) + durvalumab versus durvalumab alone as 1L maintenance after platinum–etoposide + durvalumab. PFS and ORR also improved. A potentially important new chapter in ES-SCLC maintenance therapy.”
— @SuyogCancer · DeLLphi-305 topline results · View post ↗
“SWOG/NRG S1914: In patients with high-risk T1–T3N0M0 early-stage NSCLC who were medically inoperable or declined surgery, adding peri-SBRT atezolizumab did not improve PFS or OS and increased toxicity.”
— @dr_yakupergun · SWOG/NRG S1914 negative trial · View post ↗
“Report @JTOonline describes mechanisms of acquired resistance to 1L lazertinib in EGFR mutant NSCLC from phase 3 LASER301 trial.”
— @StephenVLiu · Lazertinib resistance mechanisms · View post ↗Shared review articles are bringing attention to systemic therapy considerations in older adults with early-stage breast cancer and the link between alcohol consumption and breast cancer risk.

“Systemic Therapy Considerations in Older Adults With Early-Stage Breast Cancer Great review👇”
— @dr_yakupergun · Therapy in older adults · View post ↗
“5/ @ilyassahinMD on alcohol and breast cancer:”
— @OpenMedKate · Alcohol and breast cancer · View post ↗A new Phase I trial is assessing the feasibility and adverse events of adding hypofractionated, adaptive radiotherapy (PULSAR RT) to preoperative FLOT(D) for GEJ/esophageal adenocarcinoma. Separately, discussion has followed the recent FDA approval of daraxonrasib in pancreatic cancer, focusing on its list price of $480,000 per year.

“the sobering news is the all time high oral drug price, set at $480,000/year, $663/pill.”
— @drgandara · Daraxonrasib cost · View post ↗
“Can adding hypofrac, adaptive RT to SOC systemic improve outcomes in GEJ/esoph adeno?”
— @NiuSanford · PULSAR RT trial · View post ↗Create a free account, pick the tumor types you cover, and go beyond the tweet — the intelligence pharma teams use to map influence and prepare for engagement:
The STAMINA trial in The Lancet Oncology found a 12-month supervised exercise program improved quality of life (FACT-P +4.5), which was above the clinically important threshold, for men on ADT for prostate cancer. For high-risk localized prostate cancer, the PROTEUS trial showed perioperative apalutamide plus ADT improved pathological response (pCR/MRD 8.9% vs 1.0%). In MIBC, high pCR rates (57.1% vs 8.6% with surgery alone) with neoadjuvant enfortumab vedotin plus pembrolizumab in KEYNOTE-905/EV-303 are prompting discussions on bladder preservation.

“Exercise improved QoL for patients on ADT for #prostatecancer & it costs less per QALY than most cancer drugs the NHS funds”
— @Adam_Weiner535 · STAMINA trial · View post ↗
“the real question is not cystectomy vs preservation — it is who can preserve the bladder without compromising cure.”
— @nataliagandur · Bladder preservation in MIBC · View post ↗
“✨ In high-risk localized #ProstateCancer, the question is no longer simply whether to use ADT — but who needs it, for how long, and who should receive more. Excellent #IUCS26 discussion by @alison_tree on integrating loco-regional and systemic approaches. 🔵 STAMPEDE / abiraterone and ENZARAD / enzalutamide reinforce the role of systemic intensification in selected higher-risk patients, including cN1 disease. 🔵 In PROTEUS, perioperative apalutamide + ADT improved pathological response: • pCR/MRD: 8.9% vs 1.0% • Fewer positive surgical margins • 5-year MFS: 78.2% vs 73.5% in the data presented But the message is not “more treatment for everyone.” The real questions are: ➡️ Who can avoid ADT? ➡️ Who needs standard or longer-course ADT? ➡️ Who derives enough absolute benefit to justify AR-pathway intensification? 🎯 Clinical takeaway: localized high-risk prostate cancer is moving toward risk-adapted selective intensification, balancing disease control against the long-term burden of systemic therapy.”
— @nataliagandur · PROTEUS + STAMPEDE/ENZARAD — high-risk prostate cancer · View post ↗
“precision oncology in RCC is moving beyond static single biomarkers toward multimodal, longitudinal assessment — tissue, ctDNA, serum markers, imaging and tumor biology — matched to the right clinical question.”
— @nataliagandur · Biomarkers in RCC · View post ↗Bristol Myers Squibb announced that the registrational Phase 2 QUINTESSENTIAL trial of arlo-cel (arlocabtagene autoleucel), a potential first-in-class GPRC5D-directed CAR T therapy, met its primary endpoint of overall response rate — plus the key secondary complete response rate — in quadruple-class exposed relapsed/refractory multiple myeloma, a population that had already received BCMA-targeted therapy and included prior CAR-T patients; response data have not yet been disclosed and the therapy is investigational. The MUKnine trial demonstrated a median PFS of over six years in ultra-high-risk multiple myeloma using an extended treatment course without bispecific antibodies or CAR-T. Separately, analysis of samples from the IFM2017-03 trial linked an inflammatory marrow state to daratumumab-lenalidomide resistance and identified an 8-gene signature that predicted response. A case series also highlighted progressive multifocal leukoencephalopathy (PML) as a potential adverse event following bispecific antibody therapy.

“👏 excellent - looking forward to seeing data! Arlo-cel (GPRC5D CAR-T) hopefully en route to approval someday soon based on this. Note that arlo-cel works the same with or without prior BCMA (great work led by @SusanBal9 et al), but this trial specifically for BCMA-exposed.”
— @RahulBanerjeeMD · QUINTESSENTIAL topline (arlo-cel) · View post ↗
“HR myeloma is a marathon, not a sprint. With extended MUKnine course, median PFS will be over SIX YEARS (!) in ultra-HR MM without BsAbs or CAR-T 👏”
— @RahulBanerjeeMD · MUKnine trial · View post ↗
“Samples from the IFM2017-03 phase 3 trial show an inflammatory marrow state (NF-kB+ monocytes, low NK CD16) linked to daratumumab-lenalidomide resistance in MM.”
— @morenodegusmao · IFM2017-03 trial · View post ↗
“Daratumumab finds its targets better when CELMoDs have already been there.”
— @szusmani · CELMoDs · View post ↗
“Progressive multifocal leukoencephalopathy following bispecific antibody therapy in multiple myeloma: a case series”
— @MostafaFaisal14 · Bispecific antibody safety · View post ↗The definition of Event-Free Survival (EFS) as a primary endpoint in acute myeloid leukemia (AML) and higher-risk MDS trials is being scrutinized, specifically the FDA-recommended approach. This method uses day 1 of randomization as the event date for induction failures and does not count molecular relapse or therapy changes as events, a key consideration in trials where CR rates are low. Other discussions include treatment algorithms for Myelofibrosis and selecting conditioning intensity for allogeneic transplant.

“The accepted definition by the FDA currently does not accept molecular relapse or change in therapy (in the absence of morphologic relapse or primary failure of induction phase therapy) as events although these are considered as important events in clinical Practice.”
— @Dr_AmerZeidan · EFS Endpoint Definition · View post ↗