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PubMed2026

Rationale and Study Design of the GUIDANCE trial: A Multicenter Phase II Trial of Maintenance Durvalumab and Olaparib After Standard Fist Line Treatment (Carboplatin/Cisplatin, Etoposide, and Durvalumab) in HRD Positive Extensive Disease (ED) Small-cell Lung Cancer (SCLC) (AIO-TRK-0124/ass).

BACKGROUND: Small-cell lung cancer (SCLC) is an aggressive malignancy with poor prognosis and limited therapeutic progress over recent decades. Although PD-L1 inhibitors have modestly improved survival, responses are not durable. There are no predictive biomarkers that would allow for a personalized treatment strategy. Targeting DNA damage repair deficiencies represents a promising treatment strategy in various solid tumors. Poly (ADP-ribose) polymerase (PARP) inhibitors such as olaparib have demonstrated efficacy in homologous recombination deficiency (HRD)-positive tumors, and preclinical data suggest synergistic activity with immune checkpoint blockade. METHODS: GUIDANCE is a biomarker-driven, multicenter, single-arm, open-label phase II trial evaluating maintenance therapy with durvalumab and olaparib in patients with advanced or metastatic SCLC without progression after first-line therapy with platinum, etoposide and durvalumab. Patients are prospectively selected for HRD based on homologous recombination repair gene alterations and/or a genomic instability score. Following central prescreening, 29 patients will be enrolled. Patients receive durvalumab (1500 mg every 4 weeks) and olaparib (300 mg twice daily) until progression or unacceptable toxicity. The primary endpoint is progression-free survival (PFS) by RECIST 1.1. Secondary endpoints are overall survival, safety and tolerability. Exploratory analyses include circulating tumor DNA (ctDNA) monitoring of individual TP53 mutations, assessment of SLFN11 expression, and characterization of immune cell composition via multiplex immunohistochemistry. DISCUSSION: This trial investigates a chemotherapy-free, genomically stratified maintenance strategy targeting both DNA damage repair deficiency and immune evasion in SCLC. By integrating HRD-based patient selection with concurrent PARP and immune checkpoint inhibition, GUIDANCE aims to establish a more individualized therapeutic approach and to generate a signal for further evaluation in biomarker-defined patient populations. Trial registration number EuraCT 2024-512373-27-00.

DNA-damage repair↗

PubMed2026

Durvalumab Plus Chemotherapy for Advanced Biliary Tract Cancer: A Post Hoc Analysis of the TOPAZ-1 Randomized Clinical Trial.

IMPORTANCE: In the TOPAZ-1 trial's primary analysis, durvalumab plus gemcitabine and cisplatin (GemCis) showed statistically significant improved overall survival (OS) vs placebo plus GemCis with comparable safety between treatment groups in participants with advanced biliary tract cancer (aBTC). Durvalumab plus GemCis was recently established as the first-line standard of care among patients with aBTC. OBJECTIVE: To evaluate 4-year OS and safety of durvalumab plus GemCis in participants with aBTC. DESIGN, SETTING, AND PARTICIPANTS: This post hoc analysis of the global, double-blind, placebo-controlled, phase 3 TOPAZ-1 randomized clinical trial included participants 18 years and older with histologically confirmed unresectable, locally advanced, or metastatic biliary tract adenocarcinoma. In the TOPAZ-1 trial, patients were enrolled from April 2019 to December 2020 at 105 sites in 17 countries. Data cutoff was February 28, 2025. INTERVENTION: Participants received intravenous durvalumab, 1500 mg, or placebo plus gemcitabine, 1000 mg/m2, and cisplatin, 25 mg/m2, on days 1 and 8 every 3 weeks for up to 8 cycles, followed by durvalumab or placebo monotherapy every 4 weeks. MAIN OUTCOMES AND MEASURES: OS, duration of treatment exposure, serious adverse events, and adverse events resulting in discontinuation were assessed approximately 48 months after the last participant was randomized. RESULTS: Overall, 685 participants were randomized, with 341 receiving durvalumab plus GemCis (median [range] age, 64 [20-84] years; 172 [50.4%] female) and 344 receiving placebo plus GemCis (median [range] age, 64 [31-85] years; 168 [48.8%] female). Median (range) follow-up in censored participants was 56.9 (1.7-67.2) months for participants who received durvalumab plus GemCis and 50.7 (0.9-62.6) months for participants who received placebo plus GemCis. Median OS was 13.0 (95% CI, 11.6-14.1) months for durvalumab plus GemCis and 11.4 (95% CI, 10.1-12.5) months for placebo plus GemCis (hazard ratio, 0.75; 95% CI, 0.64-0.88); 48-month OS rate was 11.8% vs 4.3%, respectively. The rate of serious adverse events possibly related to treatment was similar between arms (52 of 338 participants [15.4%] in the durvalumab plus GemCis arm vs 59 of 342 participants [17.3%] in the placebo plus GemCis arm). In the durvalumab plus GemCis and placebo plus GemCis arms, 21 of 338 participants (6.2%) and 18 of 342 participants (5.3%), respectively, experienced adverse events leading to study drug discontinuation. CONCLUSIONS AND RELEVANCE: In this post hoc analysis of the phase 3 TOPAZ-1 randomized clinical trial, durvalumab plus GemCis demonstrated long-term survival benefit and a clinically manageable safety profile, supporting its use as a first-line treatment for aBTC. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03875235.

Humans↗

PubMed2026

Sequential Immune Activation of Effector T Cells as Biomarkers of Response to Durvalumab in Patients with Locally Advanced NSCLC.

PURPOSE: Durvalumab therapy following concurrent chemoradiotherapy (cCRT) improves progression-free survival (PFS) in patients with unresectable locally advanced non-small cell lung cancer. In this prospective observational study, we evaluated the changes in peripheral blood immune cell counts to elucidate the immunologic mechanisms underlying cCRT and durvalumab therapy. EXPERIMENTAL DESIGN: Peripheral blood mononuclear cell (PBMC) samples were collected at four time points: before cCRT, after cCRT, at the start of durvalumab, and 8 weeks after the start of durvalumab, and analyzed by multicolor flow cytometry. RESULTS: Of the 149 enrolled patients, 115 received durvalumab consolidation therapy after cCRT. The median PFS in the overall population was 24.2 months, and the 3-year PFS rate was 38.9%. PBMC analysis showed an increased effector fraction of CD4+ T cells before and after cCRT but no change in CD8+ T cells. Following durvalumab therapy, the effector fraction ratio of CD8+ T cells (CD62Llow CD8+ T cells) increased and positively correlated with increased CD62Llow CD4+ T cells during cCRT. Patients whose proportion of CD62Llow CD4+ T cells exceeded the threshold for cCRT had better PFS than those below the threshold. Patients whose CD62Llow CD8+ T-cell proportion exceeded the threshold after durvalumab therapy showed prolonged PFS compared with those below the threshold. CONCLUSIONS: cCRT promotes an increase in effector CD4+ T cells, and the subsequent increase in CD8+ T cells following durvalumab therapy prolongs PFS. Peripheral blood effector-type CD4+ and CD8+ T cells are potential biomarkers for evaluating the immune status of patients and predicting treatment efficacy.

Humans↗

PubMed2026

Durvalumab and tremelimumab, with or without lenvatinib, combined with transarterial chemoembolisation in participants with embolisation-eligible hepatocellular carcinoma (EMERALD-3): a global, randomised, open-label, sponsor-blinded, phase 3 study.

BACKGROUND: Transarterial chemoembolisation (TACE), a standard treatment for embolisation-eligible hepatocellular carcinoma (HCC), induces tumour immune responses. Single tremelimumab regular interval durvalumab (STRIDE) is a standard treatment in advanced HCC. In this phase 3 trial, we assessed the efficacy and safety of STRIDE, with or without lenvatinib, plus TACE, in participants with embolisation-eligible HCC. METHODS: EMERALD-3 is a phase 3, randomised, open-label, sponsor-blinded study, conducted at 177 medical sites in 21 countries. Eligible participants were 18 years or older (aged ≥21 years in Egypt or Singapore) at screening and had confirmed HCC (by imaging or histopathologically from biopsy specimen, surgery, or both) not amenable to curative surgery, curative ablation, or transplantation but amenable to TACE. Participants had Child-Pugh class A liver function, an Eastern Cooperative Oncology Group performance status of 0-1, and at least one measurable target intrahepatic lesion per modified Response Evaluation Criteria in Solid Tumours. Participants were randomly allocated in a 1:1:1 ratio to receive STRIDE plus lenvatinib plus TACE, STRIDE plus TACE, or TACE until each group reached its preplanned enrolment target of 175 participants. After the STRIDE plus TACE group reached its enrolment target, randomisation was adjusted to continue in a 1:1 ratio between the STRIDE plus lenvatinib plus TACE group and TACE group until approximately 275 participants were enrolled in each of these two groups. Randomisation used a centrally assigned interactive response technology system, stratified by region, baseline tumour burden, and previous palliative embolisation. In the STRIDE plus lenvatinib plus TACE group, on the first day, participants were given 300 mg tremelimumab intravenously, followed by 1500 mg durvalumab plus oral lenvatinib (8 mg for <60 kg bodyweight or 12 mg for ≥60 kg bodyweight); participants then received 1500 mg durvalumab every 4 weeks plus once-daily lenvatinib for up to 36 cycles. In the STRIDE plus TACE group, participants were given 300 mg tremelimumab and 1500 mg durvalumab intravenously on the first day, followed by 1500 mg durvalumab every 4 weeks. The technique and number of TACE procedures were at the investigators' discretion, with the first procedure administered at least 7 days after the first dose of durvalumab in the two investigation treatment groups and within 7 days of random allocation in the TACE group. The primary endpoint was progression-free survival for STRIDE plus lenvatinib plus TACE versus TACE. Key secondary endpoints were overall survival for STRIDE plus lenvatinib plus TACE versus TACE and progression-free survival and overall survival for STRIDE plus TACE versus TACE. This study was registered with ClinicalTrials.gov (NCT05301842), with enrolment completed. FINDINGS: From March 28, 2022, to Nov 20, 2024, 1124 participants were screened. The full analysis set comprised 760 participants, who were randomly allocated to STRIDE plus lenvatinib plus TACE (n=293), STRIDE plus TACE (n=175), or TACE (n=292). 633 (83%) participants were male and 127 (17%) were female; 548 (72%) were Asian. At the first data cutoff (Sept 2, 2025); the overall median follow-up for progression-free survival was 10·0 months (IQR 4·6-17·2); median follow-up for progression-free survival was 11·0 months (IQR 4·8-18·4) for STRIDE plus lenvatinib plus TACE and 8·3 months (4·1-15·5) for TACE. Median progression-free survival was 13·0 months (95% CI 12·2-16·7) for STRIDE plus lenvatinib plus TACE versus 9·8 months (8·0-11·4) for TACE (HR 0·70 [95% CI 0·57-0·86]; p=0·0007). At the second data cutoff (Feb 23, 2026) and a median follow-up for overall survival of 24·6 months (IQR 16·5-31·5) for STRIDE plus lenvatinib plus TACE and 22·9 months (14·9-30·2) for TACE, median overall survival was 39·5 months (95% CI 34·1-not reached) for STRIDE plus lenvatinib plus TACE and 34·7 months (28·8-not reached) for TACE (HR 0·84 [95% CI 0·65-1·09]; p=0·18). At this data cutoff, median progression-free survival was 12·9 months (95% CI 10·2-15·9) for STRIDE plus TACE and 8·1 months (6·5-10·2) for the first 175 participants randomised to TACE (HR 0·71 [95% CI 0·56-0·91]), with median follow-up of 10·3 months (IQR 4·6-23·7) for STRIDE plus TACE and 7·7 months (3·0-18·5) for the first 175 participants randomly allocated to TACE. The most common adverse events of maximum grade 3 or 4 were hypertension (34 [12%] of 287) for STRIDE plus lenvatinib plus TACE, post-embolisation syndrome and anaemia (ten [6%] of 175 each) for STRIDE plus TACE, and post-embolisation (17 [6%] of 290) for TACE. 184 (64%) participants receiving STRIDE plus lenvatinib plus TACE, 89 (51%) receiving STRIDE plus TACE, and 68 (23%) receiving TACE had serious adverse events. Treatment-related adverse events with an outcome of death during the treatment-emergent period occurred in seven (2%) of 287 participants who received STRIDE plus lenvatinib plus TACE (two for myocarditis; and one each for hepatic failure, haemophagocytic lymphohistiocytosis, septic shock, cardiac failure, and unknown cause), none of 175 participants who received STRIDE plus TACE, and two (1%) of 290 participants who received TACE (one each for acute myocardial infarction and unknown cause). INTERPRETATION: STRIDE plus lenvatinib plus TACE showed a statistically significant progression-free survival improvement versus TACE. These findings support a STRIDE-based regimen as a potential new treatment option for people with embolisation-eligible HCC; additional follow-up is being conducted for final analysis of overall survival across treatment groups. FUNDING: AstraZeneca.

Adult↗

PubMed2026

Efficacy and Safety of Durvalumab plus Tremelimumab for Unresectable Hepatocellular Carcinoma: A Real-World Multicenter Observational Study.

Introduction: Durvalumab plus tremelimumab (Durva/Treme) improved survival in the HIMALAYA trial for unresectable hepatocellular carcinoma (HCC), but real-world evidence remains limited. This study aimed to evaluate clinical outcomes of Durva/Treme in routine practice. Methods: This retrospective multicenter study included patients with unresectable or advanced HCC who received Durva/Treme through the Expanded Access Program in Thailand between August 2023 and November 2025. Treatment outcomes and adverse events (AEs) were analyzed and descriptively compared with the HIMALAYA trial. Results: Fifty patients were included; median age was 62 years and 80% were male. Etiologies included hepatitis B (44%), hepatitis C (30%), and nonviral liver disease (26%). Most patients had Child-Pugh A (92%), while 24% had macrovascular invasion, including five with Vp4 portal vein involvement. The objective response rate (ORR) and disease control rate (DCR) were 12% and 60%, respectively. Among 43 patients meeting HIMALAYA eligibility criteria, ORR and DCR were 12% and 56%, respectively. With a median follow-up of 28.9 months, median progression-free survival (mPFS) and overall survival (mOS) were 4.6 and 10.5 months in the overall cohort, and 6.9 and 14.0 months in the HIMALAYA-eligible subgroup. Any-grade AEs occurred in 76% of patients, with grade ≥ 3 AEs in 24%. Hepatitis was the most common toxicity (48% overall; 14% grade ≥ 3). Conclusions: Durva/Treme demonstrated clinically meaningful activity with manageable toxicity in unresectable HCC. Outcomes among HIMALAYA-eligible patients were broadly consistent with the pivotal trial, supporting the feasibility of this regimen in routine clinical practice.

Aged↗

PubMed2026

KIM-1 in Advanced Papillary and Clear Cell Renal Cell Carcinoma.

Kidney injury molecule 1 (KIM-1) is a promising biomarker in adjuvant clear cell renal cell carcinoma (ccRCC), but its relevance in advanced ccRCC or papillary RCC (pRCC) remains unclear. CALYPSO (NCT02819596) was a prospective, multi-arm trial that evaluated durvalumab alone or in combination with tremelimumab or savolitinib in metastatic ccRCC and pRCC. Circulating KIM-1 levels were measured at baseline and on-treatment. The primary endpoint was to explore if KIM-1 levels were raised in pRCC. Analyses were exploratory and p values were nominal. KIM-1 was measured in 123 patients with ccRCC and 31 patients with pRCC. Higher median concentrations occurred in pRCC compared to ccRCC (7835 vs 5470 pg/ml, p = 0.05). Reductions in KIM-1 levels occurred with systemic therapy in both ccRCC and pRCC (-59.2% and -32% respectively). In pRCC, radiological responders had significantly lower baseline KIM-1 levels (p = 0.025). In ccRCC, high baseline KIM-1 levels were associated with significantly shorter overall survival (OS) (hazard ratio [HR] 1.77; 95% CI, 1.15-2.72; p = 0.01). Also, an increase in KIM-1 during therapy was linked to worse progression-free survival (HR 1.7; 95% CI, 1.13-2.58; p = 0.01) and OS (HR 1.95; 95% CI, 1.23-3.08; p = 0.004) in ccRCC. This exploratory analysis supports the utility of KIM-1 in advanced ccRCC and pRCC.

Aged↗

PubMed2026

Daily low-dose carboplatin or weekly carboplatin plus nab-paclitaxel for concurrent chemoradiotherapy in older patients with locally advanced non-small cell lung cancer (JCOG1914): A randomized phase 3 trial.

BACKGROUND: Daily low-dose carboplatin with concurrent thoracic radiotherapy is the standard treatment for older patients with unresectable locally advanced non-small cell lung cancer (LA-NSCLC) in Japan. METHODS: This open-label phase 3 trial was conducted at 38 institutions in Japan. Patients aged ≥ 75 years with LA-NSCLC were randomly assigned (1:1) to receive daily carboplatin (30 mg/m2) or weekly carboplatin (area under the curve, 2 mg·min/mL) plus nab-paclitaxel (30 mg/m2) with thoracic radiotherapy. Durvalumab maintenance therapy was recommended after treatment completion. The primary endpoint was overall survival, which was used to assess the non-inferiority of weekly carboplatin plus nab-paclitaxel compared to daily low-dose carboplatin. RESULTS: From December 2020 to March 2024, 124 patients were enrolled (carboplatin arm, 61 and carboplatin plus nab-paclitaxel arm, 63). In the planned interim analysis, the Bayesian predictive probability indicating the non-inferiority of carboplatin plus nab-paclitaxel compared with carboplatin in the final analysis was 8.0%, leading to early study termination for futility. The median overall survival was not estimable in the carboplatin arm; the estimated value in the carboplatin plus nab-paclitaxel arm was 26.1 months (hazard ratio, 1.56; 95% confidence interval, 0.79-3.11; p = 0.200). Two treatment-related and seven non-cancer-related deaths occurred in the carboplatin plus nab-paclitaxel arm. Patients in the carboplatin arm had better quality of life than those in the carboplatin plus nab-paclitaxel arm at 6 weeks (odds ratio, 0.39; 95% confidence interval, 0.18-0.81; p = 0.012). CONCLUSIONS: Daily low-dose carboplatin with concurrent thoracic radiotherapy remains the standard treatment for older patients with unresectable LA-NSCLC in Japan.

Humans↗

PubMed2025

Integration of Gene Expression and Digital Histology to Predict Treatment-Specific Responses in Breast Cancer.

Deep learning models applied to digital histology can predict gene expression signatures (GES) and offer a low-cost, rapidly available alternative to molecular testing at the time of diagnosis. We optimized transformer-based models to infer GES results and applied this approach to pre-treatment H&E-stained biopsies from 1,940 breast cancer patients treated with neoadjuvant chemotherapy in clinical trial and real-world cohorts. The most predictive histology-derived GES for pathologic complete response (pCR) in the I-SPY2 trial was validated in four external cohorts: CALGB 40601, CALGB 40603, a trial of durvalumab plus CT, and standard-of-care CT-treated patients from the University of Chicago. Among HER2-negative patients, a transformer-based model trained using a signature composed of estrogen-regulated genes, proliferation, apoptosis, and interferon response genes predicted pCR with an AUC of 0.794, outperforming models based on clinical features alone (AUC 0.704, p = 0.001), pathologist TIL assessment, and a model trained directly to predict response from I-SPY2 cases. Tertiles of this signature stratify patients into clinically relevant groups with increasing likelihood of complete response, with pCR rates ≥50% in the top tertile regardless of treatment or hormone receptor status. Additional transformer-based signature models predicted response to specific therapies (but not chemotherapy alone), including a HER2 signaling signature in IO-treated patients, and a claudin-low signature in bevacizumab treated patients. In HER2- cohorts with available gene expression data and histology, models trained on expression data performed similarly to digital histology predictions, but the combination of gene expression and histology outperformed histology alone. These findings suggest that histology-based GES provides additive information to RNA sequencing data and can inform precision treatment selection across breast cancer subtypes.

Journal Article↗