To assess the efficacy and safety of sotorasib in patients with brain metastases using data from the phase 3 CodeBreaK 200 study, which evaluated sotorasib in adults with pretreated advanced or metastatic KRAS G12C-mutated non-small cell lung cancer (NSCLC).

The role of ctDNA in total neoadjuvant therapy (TNT) and nonoperative management (NOM) for locally advanced rectal cancer (LARC) remains unclear. We evaluated the association of ctDNA with clinical outcomes, including treatment response, local regrowth, and distant recurrence in patients undergoing TNT and NOM.

We analyzed 217 patients with KMT2A-rearranged acute myeloid leukemia (AML) in 2 large sequential randomized trials. Those randomized to FLAG-Ida (fludarabine, cytarabine, granulocyte colony-stimulating factor, idarubucin) had markedly lower rates of relapse than other chemotherapy regimens. Molecular measurable residual disease assessment after cycle 2 was strongly prognostic for relapse and death. The trials were registered at the ISRCTN Registry as AML17 ISRCTN55675535 and AML19 ISRCTN78449203.

For women aged 70 years or older with oestrogen receptor-positive HER2-negative invasive breast cancer, hormonotherapy is a standard adjuvant treatment, while the role of chemotherapy is debated. We aimed to assess the effect of adjuvant chemotherapy on overall survival in these older patients with high-risk tumours according to a prognostic genomic signature.

At the first interim analysis of the phase 3 KEYNOTE-426 trial, first-line pembrolizumab plus axitinib showed superior overall survival (OS), progression-free survival (PFS) and objective response rate (ORR) over sunitinib for advanced renal cell carcinoma (RCC). To assess long-term durability of clinical outcomes and elucidate predictive biomarkers for RCC, we performed efficacy and prespecified exploratory biomarker analyses from KEYNOTE-426 with ≥5 years of follow-up. Pembrolizumab plus axitinib showed sustained benefits in OS (hazard ratio: 0.84; 95% confidence interval: 0.71-0.99), PFS (hazard ratio: 0.69; 95% confidence interval: 0.59-0.81) and ORR (60.6% versus 39.6%) compared to sunitinib. An 18-gene T-cell-inflamed gene expression profile (TcellinfGEP) was positively associated with OS (P = 0.002), PFS (P < 0.0001) and ORR (P < 0.0001) within the pembrolizumab plus axitinib arm. An angiogenesis signature was positively associated with OS (P = 0.004) within the pembrolizumab plus axitinib arm and with OS (P < 0.0001), PFS (P < 0.001) and ORR (P = 0.002) within the sunitinib arm. Across arms, programmed cell death ligand 1 combined positive score was only associated (negatively) with OS within the sunitinib arm (P = 0.025). Additionally, PBRM1 (polybromo-1) mutation had a positive association with ORR (P = 0.002) within the pembrolizumab plus axitinib arm. Within the sunitinib arm, OS was positively associated with VHL (von Hippel-Lindau tumor suppressor gene) (P = 0.040) and PBRM1 (P = 0.010) mutations and was negatively associated with BAP1 (BRCA1-associated protein 1) mutation (P = 0.019). Results showed a sustained clinical benefit with pembrolizumab plus axitinib over sunitinib and provide valuable information on biomarkers for immunotherapy-based treatment combinations in advanced RCC. Prospective clinical investigations are needed for biomarker-directed treatment for advanced RCC. ClinicalTrials.gov identifier: NCT02853331 .

Trastuzumab deruxtecan (T-DXd) demonstrated strong and durable responses in patients with previously treated HER2 (ERBB2) mutant (HER2m) metastatic NSCLC (mNSCLC) in the DESTINY-Lung02 primary analysis (December 23, 2022, data cutoff). This final analysis evaluated T-DXd efficacy and safety after 8 additional months of follow-up, including clinically relevant subgroups and patient-reported outcomes.

Observational studies suggest that direct contact from healthcare to at-risk relatives may increase genetic counselling (GC) uptake as compared to family-mediated risk disclosure, but randomised controlled trials (RCTs) are lacking. This study assessed whether the offer of direct letters to relatives at risk of hereditary breast and ovarian cancer (HBOC) or Lynch syndrome increases GC uptake compared to family-mediated communication alone. Between 2020 and 2023, probands were randomly assigned to family-mediated disclosure (control) or family-mediated disclosure plus the offer of sending direct letters to at-risk relatives (intervention). The primary outcome was GC uptake within 12 months, measured as the proportion of eligible relatives at risk contacting a Swedish cancer genetics clinic. In total, 165 families (median: 4 eligible relatives, range: 1-26) were randomised to control (n = 79) or intervention (n = 86). GC uptake was 67% in controls and 71% in the intervention group (P = 0.23). After adjusting for predefined variables and covariates, there was still no significant difference between groups (OR: 1.24, CI: 0.79-1.95, P = 0.34). Distant relatives had lower uptake than first-degree relatives (OR: 0.27, CI: 0.18-0.40, P < 0.001), while female relatives had higher uptake than males (OR: 2.17, CI: 1.50-3.12, P < 0.001). This is the largest RCT so far investigating direct letters to relatives. GC uptake was high in both groups, and the intervention of direct letters did not show superiority over family-mediated communication alone. Direct letters to relatives may complement family-mediated disclosure in certain situations, but should not be implemented as a general procedure in cancer genetics practices.

To evaluate the longitudinal transcriptomic changes that occurred over time in patients from the ENACT trial (ClinicalTrials.gov identifier: NCT02799745). ENACT evaluated patients with low- or intermediate-risk prostate cancer, comparing the efficacy and safety of enzalutamide plus active surveillance (AS) to AS alone.

EGFR inhibition, combined with chemotherapy, forms a mainstay of treatment of first-line RAS wild-type (RASwt) metastatic CRC (mCRC). We compared the anti-EGFR antibody, A140, with cetuximab (both combined with chemotherapy) for RASwt mCRC.

With up to 10 years of follow-up, we report results from the final analysis of RESONATE- 2, a phase 3 study of first-line ibrutinib vs chlorambucil for the treatment of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). Patients aged ≥65 years with previously untreated CLL/SLL without del(17p) were randomly assigned to receive either single-agent ibrutinib (420 mg/d; n = 136) or chlorambucil (0.5-0.8 mg/kg; ≤12 cycles; n = 133). With a median follow-up of 9.6 years in the ibrutinib arm, the median progression-free survival (PFS) was 8.9 years (95% confidence interval [CI], 7.0 to not estimable [NE]) vs 1.3 years (95% CI, 0.9-1.6) for the chlorambucil arm. Among patients with unmutated immunoglobulin heavy chain variable (uIGHV), del (11q), mutated TP53, or complex karyotype, the median PFS was 8.4 years (95% CI, 6.8 to NE) with ibrutinib and 0.7 years (95% CI, 0.4-1.2) with chlorambucil. Median overall survival (OS) with ibrutinib was not reached. The most common adverse events (AEs) of any grade included diarrhea (52%), fatigue (41%), cough (39%), nausea (32%), arthralgia (31%), peripheral edema (31%), and hypertension (30%). During the entire study period, 34 of 136 patients (25%) had an ibrutinib dose reduction due to AEs; these AEs improved in 30 of 34 patients (88%). At study completion, 27% of patients remained on first-line ibrutinib treatment. This landmark RESONATE-2 study defines median PFS and demonstrates continued OS benefit of first-line ibrutinib treatment for patients with CLL/SLL, including those with high-risk genomic features. Sustained efficacy and tolerability of ibrutinib reemphasize the favorable benefit-risk profile. This trial was registered at www.ClinicalTrials.gov as NCT01722487/NCT01724346.

Intravenous anticancer treatments present challenges for patients and healthcare professionals (HCPs), prompting the development of subcutaneous formulations. In the phase 3 PALOMA-3 study, subcutaneous amivantamab demonstrated noninferior pharmacokinetics and response rates versus intravenous amivantamab (both with lazertinib), with substantially faster administration, a 5-fold reduction in infusion-related reactions, reduced venous thromboembolism, and numerically prolonged survival.

Genomic determinants of response and resistance to endocrine therapy (ET) and cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) beyond progression in hormone receptor-positive/human epidermal growth factor receptor 2-negative metastatic breast cancer are not well characterized. We analyzed serial circulating tumor DNA from the PACE trial in which patients who progressed on ET and CDK4/6i were randomized to fulvestrant, fulvestrant plus palbociclib, or fulvestrant, palbociclib, and avelumab.

In the phase 3 AGILE study, after a 12.4-month median follow-up, ivosidenib, a mutant isocitrate dehydrogenase 1 (IDH1) inhibitor, combined with azacitidine significantly improved event-free survival, overall survival (OS), and complete remission rates compared with placebo-azacitidine in patients with newly diagnosed IDH1-mutated acute myeloid leukemia (AML), who were unfit for intensive chemotherapy. This post hoc analysis reports long-term follow-up results from AGILE after a median follow-up of 28.6 months. Overall, 148 patients were randomized to receive ivosidenib-azacitidine (n = 73) or placebo-azacitidine (n = 75). Median OS was significantly longer with ivosidenib (29.3 months; 95% confidence interval [CI], 13.2 to not reached) than with placebo (7.9 months; 95% CI, 4.1-11.3; hazard ratio, 0.42 [95% CI, 0.27-0.65]; P < .0001). Hematologic recovery was faster, more durable, and conversion to transfusion independence (53.8% vs 17.1%; P = .0004) was more common with ivosidenib than with placebo. Of 33 ivosidenib-treated patients evaluable for molecular measurable residual disease (MRD), 10 converted to MRD negativity. Although OS did not differ significantly between MRD-negative and MRD-positive responders at the 0.1% variant allele frequency (VAF) threshold, MRD-negative patients had numerically longer survival. MRD status appeared more predictive of long-term OS when an exploratory 1% VAF threshold was applied. MRD response was not associated with IDH1 variant, VAF, inferred clonality, or number of baseline comutations. The previously reported safety profile was maintained. These long-term efficacy and safety results confirm the benefit of ivosidenib-azacitidine in this challenging-to-treat population and support its use as a standard of care with the longest reported survival benefit for intensive chemotherapy-ineligible patients with IDH1-mutated AML. This trial was registered at www.ClinicalTrials.gov as #NCT03173248.

BACKGROUNDEndocrine therapy (ET) with tamoxifen (TAM) or aromatase inhibitors (AI) is highly effective against hormone receptor-positive (HR-positive) early breast cancer (BC), but resistance remains a major challenge. The primary objectives of our study were to understand the underlying mechanisms of primary resistance and to identify potential biomarkers.METHODSWe selected more than 800 patients in 3 subcohorts (Discovery, n = 364, matched pairs; Validation 1, n = 270, Validation 2, n = 176) of the West German Study Group (WSG) ADAPT trial who underwent short-term preoperative TAM or AI treatment. Treatment response was assessed by immunohistochemical labeling of proliferating cells with Ki67 before and after ET. We performed comprehensive molecular profiling, including targeted next-generation sequencing (NGS) and DNA methylation analysis using EPIC arrays, on posttreatment tumor samples.RESULTSTP53 mutations were strongly associated with primary resistance to both TAM and AI. We identified distinct DNA methylation patterns in resistant tumors, suggesting alterations in key signaling pathways and tumor microenvironment composition. Based on these findings and patient age, we developed the Predictive Endocrine ResistanCe Index (PERCI). PERCI accurately stratified responders and nonresponders in both treatment groups in all 3 subcohorts and predicted progression-free survival in an external validation cohort and in the combined subcohorts.CONCLUSIONOur results highlight the potential of PERCI to guide personalized endocrine therapy and improve patient outcomes.TRIAL REGISTRATIONWSG-ADAPT, ClinicalTrials.gov NCT01779206, retrospectively registered 01-25-2013.FUNDINGGerman Cancer Aid (Grant Number 70112954), German Federal Ministry of Education and Research (Grant Number 01ZZ1804C, DIFUTURE).

Invasive lobular carcinoma (ILC) has lower response rates to neoadjuvant chemotherapy (NAC) than invasive ductal carcinoma. While ILC often has low-risk biology, there is a high-risk subset within this heterogeneous tumor type. We compared surgical treatment and response rates by histology in I-SPY2, a multicenter NAC trial.

Rucaparib is a poly(ADP-ribose) polymerase (PARP) inhibitor with proven efficacy in multiple tumor types. The efficacy of PARP inhibition in endometrial cancer remains unclear.

Patients with platinum-resistant/platinum-refractory high-grade serous ovarian cancer (HGSOC) without a BRCA mutation have poor prognosis and limited treatment options. We report efficacy and biomarker data from EPIK-O, which investigated alpelisib + olaparib versus single-agent chemotherapy in these patients.

About 15-20% of breast cancers (BC) overexpress Human Epidermal Growth Factor Receptor 2 (HER2+), and 50% of them are also oestrogen receptor positive (ER+). Patients with ER+/HER2+ BC with a limited response to systemic therapies are at an increased risk of relapse, thus understanding the mechanisms of resistance is crucial. This study investigates the changes in gene signature expression (ΔGSE) within ER+/HER2+ tumours and their intrinsic subtype (IS) in response to peri-operative aromatase inhibitors (POAI).

Metastatic castration-resistant prostate cancer remains incurable and is particularly aggressive in patients with alterations in DNA damage repair genes involved directly or indirectly in homologous recombination repair (HRR). In the primary analysis of TALAPRO-2, talazoparib plus enzalutamide significantly improved radiographic progression-free survival (rPFS) versus enzalutamide plus placebo in patients with metastatic castration-resistant prostate cancer harbouring HRR gene alterations. At primary analysis, overall survival was immature. Here we report final prespecified overall survival analysis, updated rPFS, safety, and patient-reported outcomes in the HRR-deficient cohort of TALAPRO-2.

NRG/RTOG 0521 randomized men with high-risk localized prostate cancer (PC) to androgen suppression (AS) and definitive radiotherapy (RT) ± docetaxel-based chemotherapy (CT). The overall survival (OS) benefit with CT initially reported was lost on longer follow-up. The Decipher genomic classifier (GC) measures multiple transcripts relevant to docetaxel action. Basal/luminal differentiation portends differential response to AS and CT for high-risk localized and metastatic hormone-sensitive PC. We validated the Decipher GC in pretreatment biopsy samples for risk stratification and examined basal-luminal subtyping to predict docetaxel response.