Ruben Fernandez-Rodriguez
@rubenfr86
would benefit from virotherapy as a first-line treatment. Fortunately, immunotherapy as a first-line treatment is emerging as the most promising therapeutic option, as we saw this past weekend at ESMO with the case of Tarlatamab-Durvalumab, among others. 11/14
Afshine Emrani MD FACC
@afshineemrani
The trial: DeLLphi-305, 563 patients, NEJM and ESMO this week. After standard chemo plus immunotherapy: durvalumab alone vs durvalumab + tarlatamab as first-line maintenance.
Median survival: 21.1 vs 12.7 months.
Death risk: 58% lower (relative, HR 0.42).
Pharma Jonpi . / 1.1 / .
@pharma_jonpi
THE COMBINATION OF TARLATAMAB ( AMGEN ) + DURVALUMAB ( ASTRAZENECA) REDUCED THE RISK OF DEATH BY 58% AS FIRST-LINE MAINTENANCE TREATMENT IN EXTENSIVE-STAGE SMALL CELL LUNG CANCER (ES-SCLC)
https://t.co/wQpCZiGzmr #pharmamar @expansioncom @Nasdaq #lurbinectedin @FT @FDA @EMA_News https://t.co/Hc0kO5dPIv https://t.co/9MvUKf6kv4
Raul Tirinescu
@drRaulTirinescu
DAY 2 — DeLLphi-305
Tarlatamab + durvalumab maintenance in extensive-stage SCLC improved median OS: 21.1 vs 12.7 months (HR 0.42).
A substantial survival gain. Cytokine release syndrome affected nearly half of patients, highlighting the need for monitoring. https://t.co/MDLz4Ov8rv
Nurullah İlhan,MD
@drnurullahilhan
SCLC: tarlatamab is moving earlier.
DeLLphi-305: 1L maintenance + durva vs durva: est. mOS 21.1 vs 12.7mo (HR 0.42; p<0.001)
DeLLphi-304 (23mo follow-up): 2L vs chemo: mOS 13.6 vs 8.4mo (HR 0.62)
How should we sequence it?
@sands_jacob @StephenVLiu @OncoAlert @OncoDaily #ESMO26
Prof.Dr.Humaid Al-Shamsi 🇦🇪
@alshamsi2000
🎗️ من مدريد – المؤتمر الأوروبي للأورام #ESMO2026
من أهم أبحاث المؤتمر في الجلسة الرئاسية: دراسة DeLLphi-305 في سرطان الرئة صغير الخلايا. هذا النوع من سرطان الرئة سريع الانتشار.
🔬 إضافة العلاج المناعي الحديث تارلاتاماب إلى دورفالوماب كعلاج وقائي بعد العلاج الأولي أدت إلى:
✅ انخفاض خطر الوفاة بنسبة 58%
✅ البقاء على قيد الحياة بعد سنة: 79.4% مقابل 53.3%
📄 Amgen/AstraZeneca プレスリリース: Tarlatamab + Durvalumab in Extensive-Stage SCLC. ESMO 2026発表.
https://t.co/OWWwFLZmGF
Health Hainan
@healthhainan
There's encouraging news for people facing extensive-stage small cell lung cancer. In the phase 3 DeLLphi-305 trial, a first-line maintenance combination of tarlatamab and durvalumab extended median overall survival by more than eight months compared…
https://t.co/gQoldEvVrK https://t.co/BdlM55liyN
Changes soon (NICE/CDF pending)
1. DeLLphi-305
Tarlatamab + durvalumab as first-line maintenance in SCLC. New SoC. median OS 21.1m vs 12.7m. NEJM
2. SAFFRON
Osimertinib + savolitinib new SoC after osimertinib progression with MET driven resistance. OS 17.8m Vs 12.9. NEJM
#ESMO26 https://t.co/noByEiHPva
Narjust Florez, MD, FASCO
@NarjustFlorezMD
In extensive-stage small-cell lung cancer, many of our patients never make it to second-line therapy.
Adding tarlatamab to durvalumab in first-line maintenance gives them our most active agent while they can still benefit. 80% were alive one year after starting maintenance, including patients with brain and liver metastases.
CRS was mostly limited to the first two doses, with no serious neurologic events.
Small steps in SCLC, but this one matters for our patients. 💙
#ESMO26
🫁 #ESMO26 DeLLphi-305 (ph III): tarlatamab + durvalumab as maintenance after 1L chemo-IO in ES-SCLC.
OS 21.1 vs 12.7 mo (HR 0.42)
PFS 7.4 vs 1.9 mo (HR 0.34)
Potential new maintenance standard. Watch for CRS/ICANS. #lcsm https://t.co/rFSWZC2Ty7
Hidehito HORINOUCHI
@HHorinouchi
🔥Lung🫁 #ESMO26 #LCSM 🎉Again🔂
4⃣ @NEJM
🎯DeLLphi-305 🎯OptiTROP-Lung06
🎯Krascendo 1 🎯SAFFRON
2⃣ @TheLancet
🎯PANKU-Lung01 🎯HERON-Lung01
3⃣ @Annals_Oncology
🎯PERSEE 🎯DeLLphi-304 🎯NEOTORCH
1⃣ @Nature
🎯NeoCOAST-2
1⃣ @NatureMedicine
🎯MDT-BRIDGE
1⃣ @JCO_ASCO
🎯Dalmelitinib Plus Aumolertinib
@OncoAlert @Larvol @myESMO @IASLC @ASCO
@EGFRResisters @KRASKickers @metcrusaders
Dr. Antonio Calles 🫁🚭
@Tony_Calles
📈 Update on tarlatamab in 2L ES-SCLC from DeLLphi-305.
🧀 Small fraction of patients obtained long-term benefit as shown by 16% of patients w/o disease progression at 16 months.
✅ Better OS and tolerance compared to chemo, though. #ESMO26 #LCSM https://t.co/0QLRIApP8x
Nicholas Hornstein
@GIMedOnc
Been chewing on non-GI data. This readout is in lung but highly relevant to high grade extrapulmonary NET.
DeLLphi-305 at #ESMO26. Tarlatamab, a DLL3 x CD3 T-cell engager, added to durvalumab as 1L maintenance in extensive-stage SCLC.
Design
• Phase 3, randomized, open-label, n=563
• durva + platinum/etoposide induction -> Durva + tarlatamab vs durva alone
• OS primary, interim analysis
OS 21.1 vs 12.7 mo, HR 0.42
12-mo OS 79% vs 53%
ES-SCLC survival creeping from around a year, now nearly at 2 years.
DLL3 isn't a lung target, it's a neuroendocrine one. (Right @UGrewalMD ? This is your thing for sure).
Extrapulmonary NEC has the same story SCLC had: a short response to chemo, then minimal on-label options.
The catch is CRS and ICANS, so you need the infrastructure. Maintenance Tarla seem well worth the survival advantage.
@OncoAlert @TheGutOncLab @Onco_Nexus
Miguel Gonzalez Velez, MD
@mgonzalezvelMD
Tarlatamab-durvalumab maintenance by Perol and @sands_jacob @NEJM for ES-SCLC discussed by @StephenVLiu at @myESMO
Take: DeLLphi-305, phase 3, n=563, maintenance after 1L chemoimmunotherapy without progression. Median OS 21.1 vs 12.7 months (HR 0.42, P<0.001). Median PFS 7.4 vs 1.9 months (HR 0.34). 12-month OS 79.4% vs 53.3%. Grade ≥3 events 46.8% vs 40.6%; CRS, mainly grade 1-2, in nearly half the tarlatamab arm.
As expected D-305 moves tarla into first-line maintenance and nearly doubles median survival in a disease where 12-13 months has been the ceiling for years. If we are honest, unless we make big change due to CRS and tocilizumab it will be hard to make tarlatamab mainstream to most patients even in the US and LMICs.
#LCSM #SCLC #clinicaltrials
Veli Bakalov, MD
@HemeOncBuddy
Historical trial 🚨
DeLLphi-305 trial
1L maintenance ES-SCLC
Tarlatamab + durvalumab vs durvalumab
👉 OS 21.1 vs 12.7 mo (HR 0.42)
👉 PFS 7.4 vs 1.9 mo (HR 0.34)
🛡️ CRS 49.6%, mostly G1–2; ICANS 1.1%
💡 Biggest 1L maintenance signal in ES-SCLC ➡️ likely new standard
⚠️ Interim analysis, open-label; probably need to use durval with induction now to avoid insurance issues.
Adding to https://t.co/L7deCjtEzH shortly 👨💻
📄 https://t.co/TcoIbeN92v
Noah Lindenberg, MD Oncologist-Hematologist
@nlindenberg
DeLLphi-305 is a real OS win, HR 0.42, and since many SCLC pts never reach 2L, giving tarla early makes sense. But only 33 of 281 control pts got tarla later, so the trial can’t tell us how much of the gain is early tarla vs any tarla at all. https://t.co/900ba8dn9q
Dr. Estela Rodriguez
@Latinamd
#DeLLPhi305 Low US enrollment in this pivotal #SCLC trial is NOT surprising. Regulatory hurdles, costs & complexity push sponsors to conduct trials faster ex-US—even for drugs destined to be used at greater rates by US patients.
Why it matters:
▶️ Less evidence on implementation & AEs in diverse populations
▶️ Fewer opportunities for US investigators to shape drug development early
We need faster, more inclusive trials! 🔬#clinicaltrials #ESMO26 @SclcSMASHERS @GlopesMd
Drew Moghanaki
@DrewMoghanaki
I’m trying to understand the degree of immortal time bias influencing the absolute OS values and not sure which chemotherapy-alone dataset to reference. If we benchmarked it to the control arm of CASPIAN (cis-etop alone) it would cut the OS estimates for DeLLphi-305 in half since 55% progressed by 6 months. Thoughts? #ESMO26
Heartfelt congratulations to @sands_jacob for an outstanding presentation that conveyed both the scientific significance of these results and what they mean for our patients.
Words cannot describe what we experienced yesterday with #ippokratis_korantzis @newsincancer at #ESMO2026 in Madrid .
A packed auditorium, warm applause and profound emotion. A moment of immense pride for our team and our contribution to #DeLLphi305 .A #landmark study in extensive-stage small-cell lung cancer #ESCLC : adding #tarlatamab to #durvalumab as #maintenance therapy after initial chemoimmunotherapy reduced the risk of death by 58%, with mOS of 21.1 versus 12.7 months from randomisation.A major step forward in a disease where progress has been exceptionally difficult for so many years.And through it all, our thoughts were with our #patients .With their trust, their fears and their hope for more time with the people they love..with fewer symptoms and a better quality of life.We dedicate this special moment to them and their families, whose trust made this research possible.With deep gratitude and an even greater sense of responsibility for what comes next.
#4th_Department_of_Medical_Oncology_and_Clinical_Trials_Unit #one_of_us_oncology #oncodaily #thoraciconcology #clinicaltrials
#LungCancerResearch #ClinicalResearch #PatientCenteredCare #BetterOutcomes #HopeThroughResearch #AdvancingScience #StrongerTogether #united #Interbalkan_Medical_Centre @AthensMedical
#D_Oncology_Department #ClinicalResearch #THESSALONIKI
#InternationalCollaboration #International_Oncology_Center
@myESMO @oncodaily
Prof. Dr. Ahmet Dirican
@dr_dirican
Could DeLLphi-305 redefine first-line maintenance in ES-SCLC?
At #ESMO26, Dr. Jacob Sands presented striking Phase III results:
Tarlatamab + durvalumab vs durvalumab:
OS: 21.1 vs 12.7 months (HR 0.42)
PFS: 7.4 vs 1.9 months (HR 0.34)
A potential practice-changing result for SCLC.
#DeLLphi305 #Tarlatamab #LCSM @OncoDaily @OncoAlert @myESMO #ESMO26
@430Yang Impressive data from DeLLphi-305 - median OS 21.1 vs 12.7 months and ~79% vs 53% alive at 1 year with tarlatamab + durvalumab maintenance. Clear progress in a tough disease, but cost and access will likely limit who actually gets it for now.
Dr Sophia Wong
@sophiawongyn
Landmark data from DeLLphi-305 in 1L maintenance Tarlatamab #TCE + Durvalumab presented on Day 2 of Presidential #ESMO26
✅ mOS 21.1m vs 12.7m with HR 0.42
✅ ORR 26.4% vs 4.1%
✅ Almost 50% G1-2 CRS with only 1 patient with G3
⭐️All treatment delivered as outpatient with post infusion monitoring 1-2 hours (6-8 hours in EU)
Many congratulations to @sands_jacob and @StephenVLiu’s thoughtful and masterclass discussion. @AmgenOncology @Amgen
👏🏼👏🏼👏🏼
@myESMO
Practice changing results from DeLLphi-305 #ESMO26 and UK NICE needs to quickly help make this available. Attrition post-1L is high so bringing tarla forwards makes sense.
Minimal G3 CRS/ICANS probably from early cytoreduction of tumour. OP delivery possible (2 hour monitoring). https://t.co/Srgzj7ph5Z
Jarushka Naidoo
@DrJNaidoo
#ESMO26 Presidential I: Dellphi305: Ph III Maint Tarla+Durva v Durva in 1L ES SCLC🔥
- mOS HR 0.42 (21.1m v 12.2m, p<0.001)
- superb discussion by @StephenVLiu highlighting change in biology of SCLC post Tarla, oligomet paradigms seen
- rousing call for access
@OncoAlert #LCSM https://t.co/apE2kEqmll
Raffaele Giusti
@oncoblogger
DeLLphi-305 appendix @NEJM : a DLL3 T-cell engager was given at progression to 64% of control patients in the USA vs 5% in Europe.
OS HR: Americas 0.82 (0.39–1.71) vs Europe 0.36.
Small subgroups, but in the TCE era OS depends on 2L access. Same trial, different answer. #ESMO26 https://t.co/GwhlVg8T1x
Jia (Jenny) Liu MD PhD
@JiaJennyLiu
A masterclass in how to deliver an outstanding scientific discussion at #ESMO26! 👏
Highly recommend watching @StephenVLiu’s discussion of the incredible DeLLphi-305 results presented by @sands_jacob.
What made it so effective?
🔹 Started with the unmet clinical need, not the trial data.
🔹 Critically appraised the evidence while explaining what it means for patients.
🔹 Moved beyond what the trial showed to why it matters and what questions come next.
🔹 Connected efficacy, safety and real-world access into one compelling narrative.
🔹Masterful delivery. Purposeful pauses, variation in tone and pitch, and virtually no filler words.
He finished with a powerful reminder: “innovation loses impact if it doesn’t reach the patients who need it most.”
A great discussant doesn’t just summarise or repeat results. They help us understand what changes, what remains uncertain and what the field must do next.
Science communication at its best! 👏
Katsuaki Maehara 🇯🇵
@KatsuakiMaehara
🫁🫁 DeLLphi-305 🫁🫁
💥 This is a hypothesis and falls within the realm of speculation.
💥I am specifically treating the OS on the CASPIAN side as a hypothesis.
💥Although this is a simple calculation, the OS for first-line treatment of ES-SCLC is 34.0 months, and it is possible that OS figures close to this value may be observed in real-world clinical practice.
💥💥IMO
#ESMO2026
#SCLC
#Lungcancer
Dr. Alex Ehsan, MD, PhD
@DrAlexEhsan
SMALL CELL LUNG CANCER MAY HAVE JUST ENTERED A NEW ERA!
For decades extensive stage small cell lung cancer has challenged oncologists with rapid growth! Early dissemination! Initial chemotherapy sensitivity! And devastating relapse!
Today at ESMO 2026 we witnessed something remarkable!
The Phase 3 DeLLphi 305 trial enrolled 563 patients whose cancer had not progressed following platinum etoposide and durvalumab!
Investigators compared maintenance durvalumab alone against durvalumab combined with tarlatamab!
THE RESULTS DEMAND ATTENTION!
Median overall survival improved from 12.7 months to 21.1 months!
The hazard ratio for death was 0.42!
Median progression free survival increased from 1.9 months to 7.4 months!
At one year approximately 79% of patients receiving the combination remained alive compared with 53% receiving durvalumab alone!
These are not simply changes in tumor measurements!
These are meaningful survival gains in one of the most aggressive malignancies we treat!
BUT WHY DOES THIS MATTER BIOLOGICALLY?
Small cell lung cancer frequently expresses DLL3!
Tarlatamab is a bispecific T cell engager that binds DLL3 on malignant cells and CD3 on T lymphocytes!
It physically brings the immune system into contact with cancer!
Durvalumab blocks PD L1 mediated immune suppression!
Together these agents may help overcome complementary barriers to antitumor immunity!
This raises an extraordinary possibility!
Perhaps the future of small cell lung cancer is not simply stronger chemotherapy!
Perhaps it is earlier and more effective immune redirection!
BUT WE MUST ASK HARDER QUESTIONS!
Why do some patients achieve durable disease control while others progress?
Could circulating tumor DNA identify molecular relapse before radiographic progression?
Could single cell sequencing reveal exhausted T cell populations that predict resistance?
Could spatial transcriptomics identify tumors where T cells cannot effectively reach DLL3 expressing malignant cells?
Could serial tumor and blood sampling reveal whether DLL3 expression changes under treatment pressure?
And could adaptive trials use these biomarkers to identify who benefits from earlier treatment?
We must also confront toxicity!
Cytokine release syndrome occurred in approximately half of patients receiving the combination and was predominantly low grade!
Neurotoxicity and the need for specialized monitoring cannot be ignored!
Longer survival must be accompanied by preserved quality of life!
THE NEXT EXPERIMENT MATTERS!
I would propose a prospective translational study combining serial circulating tumor DNA! DLL3 expression! T cell receptor sequencing! And immune profiling before and during maintenance!
The goal would be to identify the biology of durable responders and develop rational combinations for patients who develop resistance!
As an oncologist caring for patients with advanced cancer I believe our responsibility extends beyond celebrating positive trials!
We must determine how to convert longer survival into durable remission!
And eventually cure!
Congratulations to Jacob Sands and the international DeLLphi 305 investigators!
The next chapter should be written through collaborative science!
Could DLL3 directed immune engagement combined with molecular monitoring become the foundation for preventing small cell lung cancer relapse?
Reference! ESMO 2026 LBA3! DeLLphi 305! New England Journal of Medicine! DOI 10.1056/NEJMoa2609482
https://t.co/0RRJDimblK
#ESMO26 #SCLC #LungCancer #Immunotherapy #CancerResearch
Masahiro TORASAWA, MD. PhD.
@M_Torasawa
"Equitable access to cross-over: at time of POD, only 12.2% of ITT population in the durvalumab arm (34/278) and 18.9% (34/179) of those who received subsequent anti-cancer therapies had access to tarlatamab."
@drshieldsmd https://t.co/PuYlaxfI4q https://t.co/RDMQKqGIMK
DeLLphi-305 - #Tarlatamab + #Durvalumab as 1L Maintenance in ES-SCLC
https://t.co/lZFpznzlGb
Phase 3 #DeLLphi305 (Sands J et al.; ESMO 2026 LBA3, #NEJM): adding tarlatamab (DLL3 x CD3 T-cell engager) to durvalumab improved OS vs. durvalumab alone after induction chemo-IO.
Tarlatamab–Durvalumab Maintenance for Extensive-Stage Small-Cell Lung Cancer | New England Journal of Medicine https://t.co/967O8gzTKV
Misty Dawn Shields
@drshieldsmd
Today, the Phase 3 results of DeLLphi-305 (@AmgenOncology @AstraZeneca) were presented by @sands_jacob at #ESMO26.
DeLLphi-305 delivered an unprecedented OS improvement (21.1 vs 12.7 mo, HR 0.42) for patients receiving tarlatamab + durvalumab, compared to durvalumab alone, in 1L maintenance after chemoIO induction for ES-SCLC. Studies like these provide renewed hope.
However, this data brings forth multiple concerns regarding international access to care, interpretation of contribution of parts, patient selection, and sequencing.
1️⃣ Equitable access to cross-over: at time of POD, only 12.2% of ITT population in the durvalumab arm (34/278) and 18.9% (34/179) of those who received subsequent anti-cancer therapies had access to tarlatamab.
This speaks to the global need to expand access to this life-saving therapy, as DeLLphi-301 demonstrated this impact with accessibility promptly available here in the USA as early as May 2024. Yet, @SclcSMASHERS all over the world still do not have this option even at relapse.
2️⃣ Line of therapy: while attrition to 2L may be significant in some practices & highlights the need to maximize proactive support & early palliative care, is there clear evidence of synergy with ICI+DLL3 TCE to transform outcomes, or is the effect additive? Preclinical data suggested synergy with this combination approach.
However, within subgroup analyses of those receiving tarlatamab in subsequent treatment, particularly in the USA, it appears there is signal of additivity, given the nullification of OS benefit with DLL3 TCE cross-over (in those receiving it as 2nd LOT).
Outside of risk of attrition, what variables favor using tarlatamab in 1LM vs 2L? Is the NE biology still preserved? Is the function of the immune system equivalently preserved following <4 weeks post chemoIO with myelosuppression?
3️⃣ Patient selection: Stratification with effective predictive biomarkers are key to know who can avoid any intensification, as they may be a durable ICI responder to monotherapy ICI.
Who can we avoid tarlatamab every 2 weeks indefinitely? Who should receive lurbi + atezo? Or durva + tarla?
More translational SCLC based biomarkers, beyond DLL3, are clearly of high unmet need to guide strategies.
4️⃣ Sequencing: if we use tarlatamab+durvalumab in the 1LM, what’s next? At POD, what approved option remains? Lurbi remains approved in the 1LM, but not at relapse. I-DXd BLA was voluntarily withdrawn. Trials are key, but enrollment for most global studies is brisk, particularly in the USA where enrollment is ~20% or less of the total cohort.
@SclcSMASHERS @LUNGevity @IASLC @ASCO @NCCN @LungCancerEu @lcrf_org @OncBrothers @OncoAlert @oncodaily @OncLive @lungoncdoc @RManochakian @LauraAlderMD @LaurenByersMD @Annechiangmd
Life Science Universe
@LifeScienceUni
Amgen's tarlatamab + durvalumab extended median survival to 21.1 months vs 12.7 in extensive-stage small cell lung cancer at ESMO, cutting death risk 58% in Phase 3. A new maintenance standard for one of oncology's toughest cancers.
Rohit Singh, MD, FACP
@RohitBanwar
Big update in extensive-stage SCLC.
DeLLphi-305 showed that adding tarlatamab to durvalumab maintenance improved median OS from 12.7 to 21.1 months and PFS from 1.9 to 7.4 months, measured from maintenance randomization.
These are impressive results, and I can see this changing our maintenance discussions with patients.
I’m still thinking through two questions.
First, where does this leave lurbinectedin + atezolizumab maintenance from IMforte? The DeLLphi-305 numbers look better, but we cannot establish superiority by comparing results across trials.
Second, what do we give after progression on tarlatamab + durvalumab? Trials, platinum rechallenge in selected patients, and lurbinectedin/topotecan are considerations, but we need better evidence in patients whose disease has progressed on tarlatamab.
Keeping tarlatamab for second line is an understandable argument. In clinic, though, we also see patients deteriorate too quickly to receive the next treatment.
One detail I’d particularly want to examine is how many patients in the control arm received tarlatamab after progression. That matters when discussing early treatment versus reserving it for relapse.
I’m encouraged by these results. Alongside working out the best sequence, we’ll need to make treatment accessible and have the staffing, monitoring and caregiver support to deliver it safely.
https://t.co/IKFyOZ8ln6
#ESMO26 #LCSM #SCLC @UVMcancercenter @myESMO @lcfamerica @SclcSMASHERS
Mali Barbi, MD MSc | Breast & Gyn Oncologist
@DrBarbiOnc
Not my disease, but DeLLphi-305 is probably the result of ESMO 2026.
#Tarlatamab, a DLL3 x CD3 T-cell engager, added to durvalumab as first-line maintenance in extensive-stage small cell lung cancer. Median OS 21.1 vs 12.7 mo, HR 0.42. 12-month OS 79% vs 53%.
Why this matters: for 30 years, median survival in ES-SCLC sat around 10 to 13 months. Adding IO to chemo moved it about 2 months. This moves it about 8, with an HR rarely seen in any metastatic disease.
Three points beyond lung:
A T-cell engager works in a solid tumor.
Maintenance is where you add the new drug: after induction, on lower disease burden.
DLL3 is a neuroendocrine target.
Cost: CRS and ICANS need monitoring infrastructure. #lcsm #ESMO26
@myESMO
Vera Ghali, MD
@veraghali
In phase 3 of the DELLphi-305 Trial involving patients with Extensive-Stage Small Cell Lung Cancer (ES-SCLC), the median OS was 21.1 months when tarlatamab, a bispecific T-cell engager targeting delta-like ligand 3 (DLL3) and CD 3 was added to durvalumab, an anti-programed death ligand 1 agent, when administered as combination maintenance therapy vs 12.7 months with durvalumab alone with better progression-free survival. This significant improvement was achieved with the use of a combination of both immunotherapeutic agents after initial chemo-immunotherapy and after first remission when it is unclear. Adverse events (AEs) of grade 3 or higher occurred in 46.8% of patients receiving combination therapy and 40.6% in those who received durvalumab alone. Cytokine release syndrome (CRS) of grade 1 or 2 was seen in nearly half the patients receiving the combination therapy. ES-SCLC is a highly aggressive and rapidly progressing type of adenocarcinoma with poor prognosis. It occurs when cancer has spread beyond the lung where it started and metastasized to the contralateral lung, distant lymph nodes, and other organs like the brain, liver, and bones. It is driven by cumulative lifetime genetic mutations caused by smoking and environmental toxins that lead to the universal inactivation of key tumor-suppression genes specifically TP53 and RB 1.
The new combination treatment under study holds the promise for longer overall survival for patients with ES-SCLC.
Breaking from the #ESMO26 Presidential Symposium! 🚨
The Phase 3 DeLLphi-305 trial results mark a historic shift in first-line maintenance therapy for extensive-stage small cell lung cancer. https://t.co/TDx0n1P724
Anthony Serritella
@aserritella1984
I always get excited by plenaries at major conferences. Today’s DeLLphi-305 results are an example of seeing the standard of care changing to better patients’ lives. Tarlatamab is finding its most exiting “moment” in MRD-low disease maintenance #ESMO26 #Tarlatamab
Christine Lovly, MD, PhD, FASCO
@christine_lovly
Median OS almost 2 years in ES-SCLC with Tarlatamab+Durvalumab maintenance = practice changing!
➡️ Challenge remains implementing Tarlatamab broadly + equitably so that all patients with ES-SCLC may benefit from this revolutionary therapy.
@OncoAlert #ESMO26 @NEJM https://t.co/Ug6TxnAd1J
Ippokratis Korantzis, Medical Oncologist, MD, PhD
@newsincancer
Proud to share that the primary analysis of the phase 3 DeLLphi-305 trial was presented today at #ESMO2026 in Madrid by Dr. Jacob Sands and simultaneously published in The New England Journal of Medicine.
DeLLphi-305 evaluated tarlatamab plus durvalumab versus durvalumab alone as first-line maintenance therapy in extensive-stage small cell lung cancer, a disease where our patients urgently need better options.
It is a true honor and a great joy to be part of the author group of this study, alongside such an outstanding international team of investigators. Above all, my gratitude goes to the patients and families who took part.
I would also like to thank the Greek thoracic oncology community, which keeps making remarkable strides on the global stage, with a stronger presence at international congresses every single year.
A heartfelt thank you to the clinical trials team of the 4th Oncology Department at the Interbalkan European Medical Center for their dedication and hard work behind every enrolled patient.
And most of all, to my wife and co-PI, Dr. @ZairiEleni Eleni Zairi. Without her hard work, none of this would have been possible.
#ESMO2026 #SCLC #LungCancer #ClinicalTrials #Oncology #NEJM #DeLLphi305
Laura Alder, MD
@LauraAlderMD
Pivotal #DeLLphi305 data @sands_jacob 👏, w/ a phenomenal discussion by @StephenVLiu w/ two standout quotes:
⭐️ "Innovation loses impact if it doesn't reach the patients who need it most"
⭐️ "It is not enough to know if the drugs work or how well they work, we need to know why and in whom they work to make better individualized decisions"
Wafik S. El-Deiry, MD, PhD, FACP
@weldeiry
Tarlatamab–Durvalumab Maintenance for Extensive-Stage Small-Cell Lung Cancer
https://t.co/ZLNLtmRQks
Ana I. Velázquez Mañana, MD, MSc, FASCO
@AnaVManana
On Monday I told a patient with SCLC, this is the treatment plan today, but I’m hoping next week I can bring you better news from #ESMO26
👇 THIS is what we are here for!
🌟 PRACTICE CHANGING update for ES-SCLC: adding tarlatamb to maintenance durvalumab increases median OS by 58% (9mo)
🌟
Congrats to @sands_jacob and to all the DeLLphi-305 investigators!
#ESMO26 #LCSM
Aydah AlAwadhi, MD 🇦🇪
@Aydah_AlAwadhi
Well-deserved standing ovation! The Phase 3 DeLLphi-305 trial showed that adding tarlatamab-dlle to durvalumab maintenance therapy significantly improved OS in lung cancer (ES-SCLC) patients without progression after initial chemoimmunotherapy. @myESMO @OncoAlert #bcsm #ESMO26 https://t.co/M7p8BFcHlo
Promising results from DeLLphi-305 at #ESMO26!
Tarlatamab + durvalumab maintenance improved median OS from 12.7 to 21.1 months in extensive-stage SCLC.
An exciting step forward in a disease with limited therapeutic options! #LungCancer https://t.co/ZpNzMvQL6p
C. Michael Gibson MD
@CMichaelGibson
In a prespecified interim analysis of a phase 3 trial involving patients with extensive-stage SCLC, the median overall survival was 21.1 months with #Tarlatamab maintenance therapy and 12.7 months with durvalumab alone.
#ESMO26
https://t.co/xuqEkJZSSn https://t.co/FBAHoeWXyv
Mustafa Özdoğan, MD
@ozdogan_md
#ESMO26 PS I wrap-up, 4 LBAs, all positive:
• INTerpath-001 RFS HR 0.58
• VOLGA EFS HR 0.51
• DeLLphi-305 OS HR 0.42 (21.1 vs 12.7 mo)
• DASL-HiCaP MFS HR 0.42
Safety definitions differ. Which one made you think most? https://t.co/294mwvfK2H
ilyas sahin, MD
@ilyassahinMD
Lots of exciting developments at #ESMO26! Several important studies were also published simultaneously in major medical journals. A few highlights:
1. Small-cell lung cancer (NEJM): Adding tarlatamab to first-line durvalumab maintenance improved median overall survival from 12.7 to 21.1 months in the phase 3 DeLLphi-305 trial.
2. HER2-positive breast cancer (NEJM): Anbenitamab, a HER2-targeted bispecific antibody, plus HB1801 improved 24-month progression-free survival to 58.5% vs 34.4% with standard therapy (HR 0.46).
3. Muscle-invasive bladder cancer (NEJM): Perioperative durvalumab plus neoadjuvant enfortumab vedotin improved 24-month event-free survival to 63.5% vs 45.1% with surgery alone.
4. HR-positive, HER2-negative breast cancer (Lancet): The EGFR/HER3-targeted bispecific antibody-drug conjugate izalontamab brengitecan doubled median progression-free survival versus chemotherapy (8.2 vs 4.0 months; HR 0.41) in the phase 3 PANKU-Breast01 trial.
5. Melanoma (Nature Medicine): Five-year RELATIVITY-047 results showed sustained overall survival benefit with nivolumab + relatlimab vs nivolumab alone (HR 0.78).
Full publications below 👇
Aponia_Analytics
@AponiaAnalytics
🦉 Cancer Immunotherapy: A Week of Breakthroughs, Setbacks and New Biological Insights
October 17–24, 2026
This week brought two major clinical advances: a personalized mRNA cancer vaccine significantly reduced melanoma recurrence, while a T-cell engager sharply extended survival in aggressive lung cancer.
Other studies revealed why CAR-T cell quality, antigen presentation, and the tumor microenvironment can matter as much as immune activation itself.
🩸 1. A Personalized Cancer Vaccine Passes Its Biggest Test
Moderna and Merck's individualized mRNA vaccine, intismeran autogene, reduced melanoma recurrence or death by 42% when combined with pembrolizumab in the Phase 3 INTerpath-001 trial.
Among 1,137 patients with resected stage IIB–IV melanoma, two-year recurrence-free survival reached 82.2% versus 70.0% with pembrolizumab alone. Distant metastasis or death risk fell 38%, without a substantial increase in severe treatment-related toxicity.
The results provide major randomized evidence that vaccines targeting patient-specific tumor mutations can improve clinical outcomes, not merely generate immune responses.
Overall-survival data remain immature, and personalized manufacturing presents practical challenges.
Source: https://t.co/FHlL1f9wPs
🩸 2. T-Cell Engagers Nearly Double Survival in Lung Cancer
The Phase 3 DeLLphi-305 trial showed that adding Amgen's DLL3-targeted T-cell engager tarlatamab to durvalumab maintenance therapy extended median survival from 12.7 to 21.1 months in extensive-stage small-cell lung cancer.
Among 563 patients, the combination reduced mortality risk by 58% and increased progression-free survival from 1.9 to 7.4 months.
Tarlatamab recruits T cells directly to cancer cells, complementing durvalumab's PD-L1 blockade.
The survival advantage is substantial, but cytokine-release syndrome occurred in 49.6% of patients, predominantly grade 1–2. Grade ≥3 treatment-related adverse events affected 20.9% versus 10.8%.
These results could reshape first-line maintenance treatment, subject to regulatory review.
Source: https://t.co/1TRq9VtseZ
🩸 3. Bladder Cancer Treatment Takes a Major Step Forward
The Phase 3 VOLGA trial demonstrated a significant survival advantage with enfortumab vedotin plus durvalumab in patients with muscle-invasive bladder cancer unable or unwilling to receive cisplatin.
Among 462 patients, the combination reduced the risk of progression, recurrence or death-related events by 49%. Two-year event-free survival reached 64% versus 45%, while overall survival was 78% versus 69%.
The strategy combines targeted cytotoxic delivery through an antibody–drug conjugate with PD-L1 checkpoint inhibition.
However, grade 3–4 adverse events occurred in 64% versus 44%. The results support a new perioperative option, although comparisons with other modern regimens remain unavailable.
Source: https://t.co/VLXeYEzs9O
🩸 4. CAR-T Quality May Matter More Than Expansion
A multicenter study involving 783 lymphoma patients found that CAR-T products enriched in naïve-like CCR7⁺CD45RA⁺ T cells were associated with significantly longer progression-free survival.
In the primary cohort of 580 patients receiving axi-cel, these cells predicted better outcomes (HR 0.46; p=9.8×10⁻⁵), independently of tumor burden, inflammation and CAR-T expansion. An additional 203 patients confirmed the association.
More previous treatment lines were linked to fewer naïve-like cells.
The implication challenges a familiar assumption: expanding more CAR-T cells may be less important than preserving cells capable of sustained antitumor activity.
Whether manufacturing changes that enrich these populations actually improve survival remains unproven.
Source: https://t.co/GAN67wP3OV
🩸 5. A New Approach to Severe Immunotherapy Toxicity
Researchers in Germany and Switzerland reported promising results using extracorporeal photopheresis to treat severe immune-related complications resistant to corticosteroids.
The technique treats collected immune cells with a photosensitizing agent and ultraviolet light before returning them to circulation.
In a prospective Phase 1b/2 study involving 30 patients, the response rate among evaluable inflammatory complications reached 96.3%, including responses in colitis, hepatitis and dermatitis.
Treatment reduced inflammatory T-cell activity, including granzyme expression and interferon-γ/TNF signaling. No treatment-related serious adverse events occurred.
The potential advantage is controlling dangerous inflammation without escalating systemic immunosuppression. However, the uncontrolled study cannot establish comparative efficacy or confirm preservation of antitumor immunity.
Source: https://t.co/xDE6iBNXhy
🩸 6. Selective T-Cell Activation Shows Activity in Resistant Tumors
Invikafusp alfa, an experimental bispecific antibody, activates selected T-cell populations expressing Vβ6 or Vβ10 T-cell receptors rather than broadly stimulating the immune system.
In the Phase 1/2 START-001 trial, 4 of 27 patients (14.8%) treated at biologically optimal doses achieved objective responses, while 59.3% experienced disease control.
Responses included microsatellite-stable colorectal cancer and PD-L1-negative lung cancer, where conventional checkpoint inhibition often has limited efficacy.
The treatment expanded memory-like target T cells without broadly activating unrelated populations.
This demonstrates preliminary clinical activity, not established benefit. Patient numbers remain small, durability is uncertain, and cytokine-release syndrome remains a risk.
Source: https://t.co/2KupIGrKnT
🩸 7. Strong Vaccine Immunity Fails to Improve Pancreatic Cancer Outcomes
The randomized Phase 2 AMPLIFY-7P trial tested camupepimut (ELI-002 7P), an off-the-shelf vaccine targeting mutant KRAS, in 144 patients with pancreatic cancer after standard treatment.
Despite vaccine-specific T-cell responses in 98.9% of evaluable patients, the primary disease-free survival endpoint was missed: 23.8 versus 21.2 months (HR 0.85; p=0.5329).
Subgroup analyses suggested possible benefit in patients without detectable circulating tumor DNA (HR 0.51) or prior radiotherapy (HR 0.59).
The contrast is striking: nearly universal immune activation did not translate into a significant overall clinical benefit.
Vaccination may work better against minimal residual disease, but subgroup signals remain exploratory and clinical efficacy is unproven.
Source: https://t.co/18SHt23Nqc
🩸 8. Dual Checkpoint Blockade Targets Difficult Biliary Cancers
Chinese investigators reported Phase 2 results for cadonilimab, a bispecific antibody blocking PD-1 and CTLA-4, combined with gemcitabine and cisplatin in advanced biliary tract cancer.
Among 61 patients, the objective response rate reached 55.7%, with disease control in 85.2%. Median progression-free survival was 8.0 months and overall survival 15.6 months.
Dual checkpoint blockade could provide broader immune activation than PD-1/PD-L1 inhibition alone.
However, grade ≥3 adverse events occurred in 68.9%, including severe immune-related events in 18%.
The single-arm design cannot establish superiority over approved chemoimmunotherapy. Randomized comparisons must determine whether increased immune stimulation produces a meaningful survival advantage.
Source: https://t.co/aLKEXWZ2Vq
🩸 9. Tumors Can Hide Antigens Without Losing Them
Researchers at Southern Medical University identified SMPD3, an enzyme involved in sphingolipid metabolism, as an unexpected regulator of tumor antigen presentation.
In colorectal cancer models, increasing SMPD3 enhanced MHC-I expression at the cell surface without substantially increasing total MHC-I abundance.
The mechanism involved intracellular trafficking rather than greater production of antigen-presenting proteins.
SMPD3 overexpression increased CD8 T-cell infiltration, suppressed tumor growth in mice and improved experimental PD-1 blockade responses.
This reveals another route to immune escape: cancer cells may retain antigen-presentation machinery but fail to deliver it to their surface.
The findings are preclinical. SMPD3 is not yet a validated therapeutic target or clinical biomarker.
Source: https://t.co/2J4IGGJiOI
🩸 10. Macrophages May Awaken Sleeping Cancer Cells
French researchers uncovered a mechanism through which macrophages can reactivate dormant breast cancer cells.
In three-dimensional tumor models, macrophage-derived MMP9 and lysyl oxidase (LOX) remodeled the surrounding extracellular matrix, activating EGFR/HER2 signaling and pushing dormant cancer cells toward renewed proliferation.
Remarkably, this signaling occurred without conventional receptor-ligand activation.
The finding links macrophage activity, tissue remodeling and metastatic recurrence through a mechanism distinct from classical checkpoint-mediated immune suppression.
It raises the possibility that preventing relapse may require controlling the tumor's surrounding tissue environment, not just targeting residual cancer cells.
The evidence comes from laboratory models. Its role in human metastatic recurrence and potential for therapeutic intervention remain unproven.
Source: https://t.co/Z4TfhFEx9b
Fred R. Hirsch
@fred_hirsch
Amazing result from Delphi 305 study in SCLC presented at ESMO! Tarlatamab plus Durvalumab as maintenance in 1.line treatment most likely new standard. However, better than Tarlatamab in 2.line, which is current SOC? https://t.co/61P4GpLYgx
Dr Adam Januszewski
@AdamJanuszewski
🚨 PRACTICE-CHANGING in #SCLC!
DeLLphi-305: tarlatamab + durvalumab maintenance
✅ 58% ↓ risk of death
✅ Median OS 21.1 vs 12.7 months
✅ 66% ↓ progression/death
A huge advance for historically underserved patients with poor outcomes.
🇬🇧 Let’s expedite UK approval & NHS access
ScienceNow!
@ScienceTodayAI
NEJM: in spread small-cell lung cancer, adding tarlatamab to durvalumab after first treatment: typical survival 21.1 vs 12.7 months (563 people). Caveat: early look, maker-funded. https://t.co/dNrKCTysk0
Buy ScienceTees here: https://t.co/OJvtjxB5Wu https://t.co/x5aGAUD3wA
The moment I saw the overall survival curves, I wanted to stand up and applaud! 👏
40,000 of us at #ESMO26, sharing the same excitement and hope not for ourselves, but for our patients. ❤️
A truly emotional moment in #SCLC.
#DeLLphi305 @StephenVLiu @sands_jacob @lungoncdoc https://t.co/FxDFvv1EMP
Outstanding discussion by @StephenVLiu on the practice-changing DeLLphi-305 trial @sands_jacob . A new chapter in the treatment of ES-SCLC! #ESMO26. One year ago, we anticipated that we might finally be bending gravity. Today, that vision is becoming a reality!!!!!!👏👏👏👏👏 https://t.co/QDMrTH5l8L
David Heredia.
@HerediaOncologo
#ESMO26 #DeLLphi305 Tarlatamab in Combination With Durvalumab vs Durvalumab Alone in Subjects With Extensive-Stage Small-Cell Lung Cancer Following Platinum, Etoposide and Durvalumab
Are we changing prognosis of SCLC?
Yes we are.
Results speak for themselves.
OS 21.1m vs 12.7 m
Abdulaziz AlJassim
@DrZ_84
DeLLphi-305 a new standard of care in ES-SCLC
Tarlatamab maintenance + Durvalumab after induction chemo-IO
Huge win against SCLC!
Congrats @sands_jacob and DeLLphi-305 group
And a standing ovation! 👏🏼 https://t.co/a4380aJDuB
Philippe Aftimos, MD
@aftimosp
I very much enjoyed the discussion by @StephenVLiu of DeLLphi-305 (tarlatamab + durvalumab as maintenance therapy in ES-SCLC at #ESMO26
👏👏👏
#ESMOAmbassadors https://t.co/Wl31gpUtEu
Tian Zhang, MD, MHS, FASCO (@tiansterzhangmd.bsky)
@TiansterZhang
@sands_jacob with Dellphi305 — tarlatamab w durvalumab vs durvalumab for small cell lung cancer — almost doubling of overall survival w manageable CRS & outpatient treatment. Standing ovation for small cell! @nejm concurrent pub today.
@oncoalert @myESMO #ESMO26 https://t.co/Z25EA6hQL2
Standing ovation at #ESMO26! 👏
Practice-changing Phase 3 results from DeLLphi-305 (LBA3) for maintenance tarlatamab + durvalumab in 1L ES-SCLC: mOS: 21.1 vs 12.7 mo (HR 0.42; p < 0.001)
A new standard of care with BiTE + ICI💥 https://t.co/2TAEwtvbnY
Leonardo Brunetti
@Brunet3Leon
Striking results from DeLLphi-305 in SCLC topped with an emotional standing ovation. Mainteinance Tarlatamab is actually more like a second induction-treatment rather than a proper mainteinance! Kudos to @sands_jacob for the magistral presentation
#ESMO26 #ESMOAmbassadors https://t.co/2w1PXt8jLu
DeLLphi-305 at #ESMO26, presented by Jacob Sands, got a standing ovation. An important advance in very aggressive biology. Tarlatamab + durvalumab vs durvalumab as 1L maintenance in ES-SCLC:
▪️ OS HR 0.42, median 21.1 vs 12.7 mo
▪️ PFS HR 0.34
▪️ ORR 26.4% vs 4.1%
Important to study in NEPC and small cell bladder.
Ryan Gentzler, MD
@ryangentzler
Expert discussion of DeLLphi-305 by @StephenVLiu. Bringing tarlatamab to maintenance is major advance as second line tarlatamab is often “a promise we cannot keep.”
Many patients never receive 2nd line.
#ESMO26 https://t.co/T6IRxIS8ev
🚨 Impressive results from #ESMO2026!
Phase III DeLLphi-305: Tarlatamab + durvalumab vs durvalumab alone as 1L maintenance in ES-SCLC:
🔹 Median OS: 21.1 vs 12.7 months (HR 0.42)
🔹 Median PFS: 7.4 vs 1.9 months (HR 0.34)
🔹 ORR: 26.4% vs 4.1%
🔥 Practice-changing potential!
#LungCancer #SCLC
@OncoAlert @weoncologists @StephenVLiu @GlopesMd @ManuelDomine
Abeid Athman (Omar).
@bin_abeid
In DeLLphi-305: The combination of Tarlatamab+ Durvalumab improves both OS (21 vs 12 months HR 0.42) and PFS in ES-SCLC. This is remarkable in such a lethal disease with high recurrence rates and mortality. #ESMO2026 #ESMOAmbassadors @myESMO @StephenVLiu @tompowles1 @FAndreMD https://t.co/fE2K7k2Jha
Shankar Siva
@_ShankarSiva
💥Game-changer in small cell #lungcancer! #ESMO26 LBA3 DeLLphi-305: Tarlatamab + durvalumab vs durvalumab 1L maintenance in ES-SCLC (n=563) after chemo-IO. Median OS ⬆️ 21.1 vs 12.7 mo (HR 0.42), PFS ⬆️7.4 vs 1.9 mo (HR 0.34), ORR 26% vs 4%. ☢️44% of pts still on T+D due to #radiotherapy of oligoprogressive sites? #SCLC #LCSM @NEJM ➡️ https://t.co/nhVH10CQZG
Pablo Flores
@PabloFlores95
🔥 Hot off the press! 📄!
Tarlatamab–Durvalumab Maintenance for Extensive-Stage Small-Cell Lung Cancer | New England Journal of Medicine https://t.co/mgUWrdUWme
Carlo Genova
@CarloGenova5
Standing ovation at #ESMO2026 for DELLPHI-305. It is heart-warming to see a meaningful survival advantage in ED-SCLC. https://t.co/ZkEwRPh2v6
Balazs Halmos
@BalazsHalmosMD
Starlatamab takes a huge BiTE today out of small cell lung cancer!
Amazing PFS (0.34) and OS (0.42) HR and truly manageable added tox- 50% CRS but almost uniformly gr 1/2 and near non-existent ICANS, no new safety signal w durva combo just makes this one of the most impressive SCLC trials/ cancer trials ever..
Given extreme need for better treatments for our pts w ES-SCLC, unprecedented benefit seen in DeLLphi-305 plus availability/experience with use already it is a no-brainer to incorporate into our practice as SOC maintenance therapy on Monday… well, not Mon- whenever your flight takes you back post-#ESMO26
Amazing job by @sands_jacob and Amgen/DeLLphi team- glad we had a chance to offer such a transformational trial to our pts as well at Monte/Einstein!
With these extraordinary results starlatamab is likely to continue to expand into 1st line/LS-SCLC settings and lets just dream on- if we as a field have taken such a tasty first BiTE, can hardly wait for the next one!
Standing ovation- well deserved!
#lcsm
Elvina Almuradova
@Dr_ElvinaA
#ESMO26 | DeLLphi-305
Maintenance tarlatamab + durvalumab prolonged median OS to 21.1 vs 12.7 months with durvalumab alone in ES-SCLC at the prespecified interim analys @NEJM @myESMO @Larvol https://t.co/5YjJCDcyNi
OsmanKostekMD
@OncologyMarwarD
🚨 ESMO 2026 | DeLLphi-305
Tarlatamab + durvalumab delivers impressive survival benefits in 1L maintenance ES-SCLC!
✅ OS: 21.1 vs 12.7 mo (HR 0.42)
✅ PFS: 7.4 vs 1.9 mo (HR 0.34)
Benefits maintained across key subgroups, including brain and liver metastases.
🔥 New SOC 💫💫 https://t.co/bEhzHFst9o
Dr Amol Akhade
@SuyogCancer
DeLLphi-305. Immpresive curves . Additional Toxicity and cost in real world needs to be seen . Good for patients with extensive SCLC @myESMO @OncoAlert #esmo26 https://t.co/V2CDG9m0ZR
Oriol Mirallas MD
@DrMirallas
🔥 Presidential Symposium I #ESMO26
🗣️ @sands_jacob @DanaFarber
DeLLphi-305 trial evaluating tarlatamab + durva vs durva as 1LM therapy for ES-SCLC.
✔️ mOS 21.1 vs 12.7m HR 0.42
✔️ mPFS 7.4 vs 1.9m HR 0.34
✔️ ORR 26.4 vs 4.1%
☣️ 46.8 vs 40.6% grade 3 or higher
@OncoAlert @myESMO @ASCO @_SEOM @UTMDAnderson @NEJM @brunolarvol
👇🏽👇🏽
Yago Garitaonaindía
@YGaritaonaindia
🔥🔥🔥 #ESMO26 DeLLphi-305 in @NEJM
Tarlatamab + durva vs durva as 1L maintenance in ES-SCLC (n=563)
➡️ mOS 21.1 vs 12.7 mo | HR 0.42
➡️ mPFS 7.4 vs 1.9 mo | HR 0.34
➡️ ORR 26% vs 4% | CR 0.9% | mDoR 12.7 mo
➡️ G≥3 AEs 47% vs 41% | CRS in ~50%, mostly G1-2, manageable
🔍 OS here is a game changer. New 1L maintenance standard, ahead of lurbi-atezo.
🙋CRs almost absent and DoR ~1 year. Still far from the long-term tail we see with PD-1 blockade in other tumour types. We can’t cure without CRs
@myESMO @_SEOM @OncoAlert @Larvol
#LCSM #SCLC
Martín Angel
@Martin_AngelMD
Presidential symposium 1️⃣!!
DeLLphi-305 study:
Tarlatamab + durva significantly improved ✅ OS, PFS, and ORR ‼️ in 1LM ES-SCLC @myESMO #ESMO26 a 🆕 standard of care! https://t.co/TJw3Q74PNE
Dr Riyaz Shah
@DrRiyazShah
DeLLphi-305; ES-SCLC; nearly 2y mOS; Strong PFS signal; this is about the strongest data I’ve seen in this space. @BTOGORG #ESMO26 https://t.co/rukehL59lQ
Hidehito HORINOUCHI
@HHorinouchi
🆙#ESMO26 Presidential Symposium I: #LCSM
🔥DeLLphi-305: Tarlatamab Plus Durvalumab (Durva) vs Durva as 1L Maintenance (1LM) Therapy Following Durva, Platinum, and Etoposide in Extensive-Stage Small Cell Lung Cancer (ES-SCLC): Primary Analysis of the Phase 3 Trial
🎙️ @sands_jacob
🔢LBA3
🎯Met Primary Endpoint: Significantly Improved OS
🎯mOS 21.1 vs 12.7m, HR 0.42
🎯mPFS 7.4 vs 1.9m, HR 0.34
🎯ORR 26.4% vs 4.1%
🎯CRS 49.6% (Mostly Low Grade), No Fatal Events
☑️NCT06211036
🔗 https://t.co/Lb6tzuMm0z
@OncoAlert @Larvol @myESMO @IASLC
Dipesh Uprety MD FACP
@DipeshUpretyMD
DeLLphi-305 @NEJM #ESMO26
➡️Pts with ES-SCLC without progression after initial chemo-IO randomized to tarlatamab–durvalumab with durvalumab as 1L maintenance therapy
➡️ Md OS 21.1 mo (tarla arm) vs 12.7 months
➡️Md PFS 7.4 mo (tarla arm) vs 1.9 mo
Practice changing and now a new standard of care
#LCSM @OncoAlert
https://t.co/BM6jNTyFw6
Guilherme S. C. Correia, MD
@guicorreiamd
Real-time first-line updates in ES-SCLC! Getting closer and closer to a 2yr mOS.
Tarlatamab + Durvalumab maintenance improved mOS to 21.1 months compared to 12.7 months with single agent Durva.
New standard of care in this space! https://t.co/9kDH9ap8HL
Giannis Mountzios
@g_mountzios
#ESMO26 Presidential 1 :
#SCLC DeLLphi-305:
Who would have imagined some years ago that median OS of SCLC would equal that of non-AGA NSCLC!
#Tarlatamab as 1L maintenance with Durvalumab after induction chemoIO in ES-SCLC improved OS from 12.7 to an impressive 21.1m, corresponding to a HR of 0.42.
80% of patients alive and 38% progression-free at 12 months
The dawn of a new era for thoracic oncology and for the lives of our patients 💫✨
@myESMO @SclcSMASHERS
#ESMOAmbassadors
@Reuters In the DeLLphi-305 results, median overall survival was 21.1 months with tarlatamab plus durvalumab maintenance versus 12.7 months with durvalumab alone.
Anirban Maitra
@Aiims1742
From #ESMO26 & @NEJM
Tarlatamab–Durvalumab Maintenance for Extensive-Stage Small-Cell Lung Cancer
https://t.co/locTy831XT
Practice changing data for a terrible disease with hazard ratios that are unequivocal.
Rami Manochakian MD, FASCO
@RManochakian
🚨🔥@OncoAlert Hot off the press.
Just published @NEJM in conjunction with presentation @myESMO #ESMO26
the long-awaited #PracticeChanging results of:
⭐️#DeLLphi305 phase 3 trial of:
❇️1st line maintenance #Tarlatamab + #Durvalumab) vs #Durvalumab alone in patients with #ExtensiveStage #SmallCell #LungCancer after initial induction Tx with #Chemo + Durvalumab.
Study showed:
‼️#Impressive statistically significant & clinically meaningful ⬆️#OverallSurvival Benefit.
✅#mOS: 21.1 vs 12.7 months (HR 0.42)
✅12-month OS: 79.4% vs 53.3%
✅#mPFS: 7.4 vs 1.9 months (HR 0.34)
⚠️ Grade ≥3 #AEs: 46.8% vs 40.6%
* In Tarlatamab arm:
#CRS: 49.6% (Grade ≥3: 0.4%)
#ICANS: 1.1% (Grade ≥3: 0%)
👇🏻
https://t.co/JoYBDSUAo9
Karine Tawagi MD
@DrKarineTawagi
🔥 full house before #ESMO26 Presidential:
🔹#INTerpath001: Intismeran autogene + pembro vs pembro in resected melanoma
🔹#VOLGA: Periop durva ± treme + EV in MIBC
🔹#DeLLphi-305: Tarlatamab + durva vs durva as 1L maintenance in ES-SCLC
🔹Daro + ADT + RT in very high-risk PCa https://t.co/16kmnFAZaU
Eric K. Singhi, MD
@lungoncdoc
WOW! BIG news for our patients with extensive-stage small cell lung cancer!
Phase 3 DeLLphi-305 trial, adding tarlatamab to durvalumab maintenance after initial chemoIO:
✅ OS: 21.1 vs 12.7 months (HR 0.42)
✅ PFS: 7.4 vs 1.9 months (HR 0.34)
Practice-changed! #ESMO26 https://t.co/t23SBNzfUD
MV Chandrakanth
@ChandrakanthMv
🥊 ES-SCLC | THE POWER OF PARTNERSHIP!
2018: ATEZO opens the game! (IMpower133, OS HR 0.70)
2019: DURVA joins the fight! (CASPIAN, HR 0.73)
2025: ATEZO + LURBI enter maintenance! (IMforte, HR 0.73)
🔥 2026: DURVA + TARLA raise the stakes! (DeLLphi-305, HR 0.42)
🔮 NEXT: DeLLphi-312 takes TARLA into first line. Results awaited!
💡 A smart drug can change practice. The right partner, at the right time, can change the game!
HRs reflect separate trials—not head-to-head comparisons.
@myESMO @OncoAlert @larvol
#ESMO26 #SCLC #Immunotherapy #Tarlatamab #MVOnco
Alfredo Addeo MD
@Alfdoc2
🔥 TODAY COULD BE ONE OF THE DEFINING MOMENTS OF #ESMO26! 🔥
The ESMO Presidential Symposium is always one of the highlights of the congress, and today’s session promises some truly extraordinary science!
If I had to pick ONE study with the greatest potential to change clinical practice at ESMO 2026, my choice would be DeLLphi-305.
For decades, SCLC has been one of the most challenging diseases in oncology, with far too little progress and far too few therapeutic breakthroughs.
Could DeLLphi-305 finally represent the major leap forward we have been waiting for? We already know that adding tarlatamab to durvalumab as first-line maintenance significantly improves OS compared with durvalumab alone. But today, we will finally see the numbers. And I am genuinely excited to discover just how transformative this benefit might be! My personal bet for the biggest breakthrough of #ESMO26? DeLLphi-305. @StephenVLiu @sands_jacob
Of course, the magnitude of survival benefit, safety and clinical applicability will ultimately determine its impact. But the potential is enormous. Don’t miss today’s Presidential Symposium!
Madrid | 🕟 16:30 CEST Alicante auditorium
#ESMO26 #ESMOAmbassador #SCLC #LungCancer #Immunotherapy #Oncology #PracticeChanging
Dr. Poetic 🩺 Oncology 🇮🇱
@Dr_Doc_
#ESMO2026 #ESMO26 @myESMO
השנתי של ESMO במדריד מציג גם השנה תמונה מורכבת של התקדמות באונקולוגיה, לצד תוצאות שעשויות לשנות את הטיפול בחלק מהגידולים, מתפרסמים גם מחקרים שליליים המזכירים לנו שלא כל שילוב טיפולי חדש אכן משפר את התוצאות הקליניות.
🏆 אונקולוגיה 🦀 הזוכים 🎉 עד כה...
1. DeLLphi-305 | סרטן ריאה מסוג תאים קטנים, מחלה נרחבת (ES-SCLC)
אחת התוצאות הבולטות היא ממחקר פאזה III שבחן הוספת tarlatamab, נוגדן דו־ספציפי המכוון ל־DLL3, ל־durvalumab כטיפול אחזקה לאחר טיפול ראשוני במחלה שלא התקדמה.
ההבדלים היו משמעותיים:
חציון ההישרדות הכוללת (mOS): 21.1 לעומת 12.7 חודשים (HR 0.42).
חציון ההישרדות ללא התקדמות (mPFS): 7.4 לעומת 1.9 חודשים (HR 0.34).
המשמעות: תוצאה מרשימה, שעשויה לבסס אפשרות טיפולית חדשה באחזקה בקו הראשון בסרטן ריאה מסוג תאים קטנים. לצד עוצמת התועלת, יהיה חשוב להעריך גם את פרופיל הרעילות, ובפרט CRS ורעילות נוירולוגית, ואת היכולת ליישם את הטיפול בשגרה.
2. VOLGA | סרטן שלפוחית השתן החודר לשריר (MIBC)
במחקר פאזה III נבחן טיפול פרי־אופרטיבי ב־enfortumab vedotin (EV) וב־durvalumab בחולים שאינם מתאימים לציספלטין או מסרבים לקבלו.
דווח על שיפור בהישרדות ללא אירוע (EFS; HR 0.55) ובהישרדות הכוללת (OS; HR 0.58), לצד שיעור גבוה יותר של תגובה פתולוגית מלאה (pCR): 45% לעומת 10%.
המשמעות: מדובר בתוצאה חשובה באוכלוסייה עם אפשרויות טיפול מוגבלות. היא מחזקת את מקומם של שילובים המבוססים על ADC ואימונותרפיה במחלה הניתנת לטיפול בכוונה מרפאת. עם זאת, חשוב להבחין בין זרועות הטיפול השונות במחקר, ובפרט בין משטר המבוסס על durvalumab לבין הוספת tremelimumab, שבה לא הודגם עדיין יתרון מובהק בהישרדות הכוללת.
3. STARBOARD | מלנומה מתקדמת עם מוטציית BRAF V600
המחקר בדק שילוב של encorafenib ו־binimetinib עם pembrolizumab לעומת pembrolizumab בלבד בקו הראשון.
התוצאות הצביעו על שיפור משמעותי:
שיעור התגובה האובייקטיבית (ORR): 70% לעומת 32.7%.
חציון PFS: 33 לעומת 3.4 חודשים (HR 0.33).
התועלת ב־PFS ובשיעור התגובה בולטת, אך הרעילות הייתה גבוהה יותר: תופעות לוואי בדרגות 3–4 דווחו ב־70% לעומת 39%. נתוני ההישרדות הכוללת עדיין אינם בשלים.
המשמעות: שילוב מבטיח במיוחד, אך עדיין נותרו שאלות לגבי מיקומו ביחס לאפשרויות אימונותרפיה משולבת אחרות ולגבי מאזן התועלת והרעילות.
4. HERIZON-GEA-01 ו־G-HOPE-001 |
טיפולים חדשים בסרטן הקיבה וה־GEJ
שני מחקרים בולטים בתחום שבו הצורך בטיפולים יעילים עדיין גדול:
HERIZON-GEA-01:
zanidatamab בשילוב כימותרפיה, עם או בלי tislelizumab, בחולים עם מחלה מתקדמת HER2
חיובית.
בזרוע הטיפול המשולש חציון OS הגיע ל־27 חודשים (HR 0.65), וכ־40% מהמטופלים היו בחיים לאחר שלוש שנים.
G-HOPE-001:
ה־ADC arcotatug tavatecan, המכוון ל־CLDN18.2, הראה שיפור בהישרדות הכוללת לעומת טיפול לבחירת הרופא: 10.2 לעומת 6.9 חודשים (HR 0.57). גם ההישרדות ללא התקדמות השתפרה.
המשמעות: שתי התוצאות מחזקות את הפוטנציאל של טיפולים ממוקדים ושל ADCs בסרטן הקיבה וה־GEJ. חשוב לזכור שמדובר באוכלוסיות שונות ובקו טיפול שונה, ולכן אין להסיק מהן על יתרון ישיר של תרופה אחת על פני האחרת.
❌ המאכזב 😞
5. KEYNOTE-866 | סרטן שלפוחית השתן החודר לשריר
במחקר נבחנה הוספת pembrolizumab לכימותרפיה מבוססת cisplatin ו־gemcitabine סביב הניתוח, בחולים המתאימים לציספלטין.
המחקר לא השיג שיפור מובהק ב־EFS (HR 0.88; p=0.1366), ולא הודגם יתרון בהישרדות הכוללת.
המשמעות: תוצאה שלילית עבור המשטר שנבדק. היא מדגישה שלא ניתן להסיק על הצלחת טיפול פרי־אופרטיבי אחד מהצלחת שילוב אחר, גם כאשר שניהם מבוססים על אימונותרפיה.
🔍 החשוד 🤨
6. INTerpath-001 | חיסון mRNA אישי במלנומה
זהו מחקר חיובי מבחינת הישרדות ללא הישנות (RFS) והישרדות
☢️ רדיותרפיה: המחקרים העיקרים 🎯
7. DASL-HiCaP | סרטן ערמונית מקומי בסיכון גבוה מאוד
במחקר פאזה III נבחנה תוספת darolutamide לטיפול הכולל דיכוי אנדרוגני (ADT) והקרנות, בחולים עם סרטן ערמונית מקומי בסיכון גבוה מאוד.
דווח על הפחתה של כ־58% בסיכון לגרורות או למוות. שיעור ההישרדות ללא גרורות (MFS) לאחר ארבע שנים היה 95% לעומת 88%.
המשמעות: תוצאה משמעותית התומכת בהעצמת הטיפול הסיסטמי בחולים המתאימים, על גבי טיפול הכולל הקרנות ו־ADT. חשוב להדגיש שהמחקר בוחן את תוספת darolutamide, ולא את יעילות ההקרנות לבדן.
8. MASTERPLAN | סרטן לבלב מקומי בסיכון גבוה
מחקר פאזה II אקראי בחן הוספת SBRT במינון 40 Gy בחמש פרקציות לכימותרפיה בחולים עם סרטן לבלב מקומי בסיכון גבוה, לרבות מחלה גבולית לנתיחות ומחלה מקומית מתקדמת.
התוצאות היו מעודדות:
חציון OS: 22 לעומת 14 חודשים (HR 0.45).
שיפור גם בהישרדות ללא התקדמות ובשליטה המקומית.
לא זוהתה עלייה ברורה ברעילות החמורה שיוחסה ל־SBRT.
המשמעות: זהו אות חיובי חשוב לתפקידה האפשרי של רדיותרפיה סטריאוטקטית בסרטן לבלב מקומי. עם זאת, המחקר כלל 74 מטופלים בלבד, ונדרש מחקר פאזה III כדי לאשר את התועלת, ובפרט את השפעתה על ההישרדות הכוללת.
9. SARON | סרטן ריאה אוליגומטסטטי
המחקר בחן הוספת רדיותרפיה קונסולידטיבית לטיפול הסיסטמי בחולים עם NSCLC אוליגומטסטטי סינכרוני ללא שינויים גנומיים בני־מטרה (AGA-negative).
נמצא שיפור בהישרדות ללא התקדמות: חציון PFS של 13.9 לעומת 8.9 חודשים (HR 0.64). גם השליטה המקומית השתפרה, עם שיעור כישלון מקומי לאחר 12 חודשים של 13% לעומת 39.5%.
אולם, לא הודגם יתרון בהישרדות הכוללת: חציון OS של 31 לעומת 28 חודשים (HR 0.99).
המשמעות: המחקר מדגים היטב את ההבדל בין שיפור בשליטה המקומית ובהישרדות ללא התקדמות לבין הארכת חיים. התוצאות אינן מבטלות את ערכה של הרדיותרפיה בחולים נבחרים, אך אינן תומכות בקביעה שתוספת טיפול מקומי משפרת OS באוכלוסייה שנבדקה.
לסיכום: לצד ההתלהבות מתוצאות חיוביות, צריך להקפיד להבחין בין מחקר פאזה III למחקר פאזה II, בין ניתוחי ביניים לתוצאות בשלות, ובין שיפור במדדי המחלה לבין הוכחה להארכת חיים.
*הסקירה משקפת את הנתונים שדווחו עד 24 באוקטובר 2026; חלק מהמחקרים עדיין דורשים מעקב נוסף ואימות של התועלת ארוכת הטווח.
Toni Choueiri, MD
@DrChoueiri
JUST IN: DeLLphi-305: Small Cell Lung Cancer Extensive-Stage
Phase III (n=563): Tarlatamab + Durvalumab vs Durvalumab as 1L maintenance after chemo-IO, to be presented by our own @sands_jacob from @DanaFarber
• Median OS: 21.1 vs 12.7 months (HR 0.42)
• Median PFS: 7.4 vs 1.9 months (HR 0.34)
• ORR: 26.4% vs 4.1%
Grade ≥3 AEs: 46.8% vs 40.6%; CRS 49.6% (most low grade).
Probably new standard of care in ES-SCLC.
@OncoAlert @DanaFarberNews #ESMO26
Patrick Forde
@FordePatrick
DeLLphi-305 - tarlatamab added to durvalumab after initial chemo-immunotherapy for small lung cancer essentially doubles survival. Hope for all cancers here, if the right target & treatment modality can be refined. Unquestionably a new standard for this disease. #ESMO2026 https://t.co/8ovQ2yB6fr
#ESMO26 DeLLphi-305: tarlatamab+durva vs durva, 1L maintenance ES-SCLC
➡️ OS 21.1 vs 12.7 mo, HR 0.42
➡️ PFS 7.4 vs 1.9 mo, HR 0.34
➡️ CRS 49.6% (G3+ 0.4%)
Amazing to be part of this practice-changing study on the global steering committee!!
@LungCancerRx @OncoAlert @oncodaily https://t.co/BfjokrDpim
Tejas Patil
@TejasPatilMD
🌟AND finally, #ESMO26 wouldn't be complete without some of the HEAVY hitters. I expect these data to change practice!
1⃣Tarlatamab plus durvalumab (durva) vs durva as 1L maintenance (1LM) therapy following durva, platinum, and etoposide (1L durva + EP) in extensive-stage small cell lung cancer (ES-SCLC): Primary analysis of the phase 3 DeLLphi-305 trial.
I fully expect this trial to establish DLL3 TCE as the dominant first line strategy in SCLC and will likely be practice changing.
2⃣Krascendo 1: Efficacy and safety of divarasib (diva) vs sotorasib (soto) or adagrasib (ada) in previously treated locally advanced or metastatic KRAS G12C-mutated NSCLC.
Given the evolution of KRAS G12Ci in this space, what is notable here is the direct prospective comparison to current KRAS G12Ci (adagrasib / sotorasib). Looking forward to ascertain magnitude of potential benefit and safety differences.
3⃣INTerpath-001: Phase 3 study of the mRNA-based individualized neoantigen therapy (INT) intismeran autogene (intismeran) plus pembrolizumab (pembro) vs pembro alone for adjuvant treatment of resected stage IIB-IV melanoma (MEL)
Technically not a lung cancer study, but I believe this trial to be game-changing from a proof-of-concept approach. In my mind, this study establishes personalized mRNA-based approaches as a viable approach and worthy of research and clinical investment.
@lcsmchat @OncoAlert @OncLive @Onco_Nexus @LungCancerEu @Lung_Cancers @LungCancerRx @MedwatchHQ @KRASKickers @SclcSMASHERS @YoungLungCancer
DeLLphi-305 (LBA3): tarlatamab + durva vs durva maintenance in ES-SCLC without progression after durva + platinum-etoposide.
OS HR 0.42 (CI 0.32-0.54); 12-mo OS 79% vs 53%, median OS 21 vs 13 mo.
Impressive OS signal. Was thoracic consolidation RT allowed? The abstract doesn't say. If so, would be interested to see fractionation/dosing schemes and how RT was interdigitated.
#ESMO26 #radonc
https://t.co/wazLJ6ejpv
Yakup Ergün
@dr_yakupergun
#ESMO26 | DeLLphi-305 – Phase III | Presidential Symposium-1
In ES-SCLC, tarlatamab + durvalumab maintenance significantly improved outcomes vs durvalumab alone following first-line chemotherapy + durvalumab:
OS: 21.1 vs 12.7 months (HR 0.42)
PFS: 7.4 vs 1.9 months (HR 0.34)
CRS: 49.6%; grade ≥3: 0.4%.
An impressive OS benefit! Atezolizumab + lurbinectedin maintenance also demonstrated an OS benefit in IMforte (HR 0.73). Although cross-trial comparisons are inappropriate, the magnitude of the OS benefit with tarlatamab appears numerically much greater.
Sumanta K. Pal, MD, FASCO
@montypal
Arriving at #ESMO26 tomorrow just in time for what promises to be one of the most exciting sessions: Presidential Session #1. #INTerpath-001 presented by @ProfGLongMIA, #VOLGA by @tompowles1, #DeLLphi-305 by @sands_jacob & #DASLHiCaP by @niazi_Dr7. A terrific slate of discussants as well, incl @StephenVLiu (one of the most talented orators in our field, IMHO), @MichvdHeijden, @Silke_Gillessen & more. Hats off to @YJanjigianMD, @FAndreMD, @Prof_Nadia_H & #DrJamesLarkin for assembling a powerhouse program! @OncoAlert
Dra. María Natalia Gandur Quiroga
@nataliagandur
🚨 #ESMO26 Lung Cancer: the 10 studies that best capture where the field is moving
@OncoAlert
What stands out to me from the @OncoAlert faculty selection is how much the lung cancer landscape is shifting toward smarter sequencing, biomarker-defined combinations, and more selective treatment intensification.
🫁 Top Ten from Madrid:
1️⃣ DeLLphi-305 — tarlatamab + durvalumab in 1L ES-SCLC maintenance
2️⃣ Krascendo 1 — divarasib vs sotorasib/adagrasib in KRAS G12C NSCLC
3️⃣ SAFFRON — osimertinib + savolitinib after osimertinib in EGFRm/MET+ disease
4️⃣ OptiTROP-Lung04 — sac-TMT after EGFR-TKI
5️⃣ OptiTROP-Lung06 — sac-TMT + pembrolizumab in PD-L1-negative NSCLC
6️⃣ PERSEE — pembrolizumab ± chemotherapy in PD-L1 ≥50%
7️⃣ SANOVO — savolitinib + osimertinib in 1L EGFRm/MET-overexpressed NSCLC
8️⃣ IFCT-2103 DIAL — continue pembrolizumab vs observation at 6 months
9️⃣ PANKU-Lung01 — iza-bren after third-generation EGFR TKI
🔟 SARON — consolidation RT in oligometastatic NSCLC
🎯 Why this matters: these studies are not just adding new drugs. They are refining when to intensify, when to combine, when to continue, and when biology should drive the next step.
That is the real value of a “Top Ten” list: not more information — better prioritization of the data most likely to influence practice.
@christine_lovly @GlopesMd @DrSanjayPopat @StephenVLiu @jillfeldman4 @UOzkerim @DrMirallas @CharuAggarwalMD @peters_solange @JordiRemon
#lcsm #OncoAlert #ESMO26 #LungCancer #NSCLC #SCLC #PrecisionOncology