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2815 citation(s) found for "Nuño, Laura".

Implementation of Proactive Psychiatric Consultation With Cardiology Inpatients
Otte, Melissa, Pardo, Laura Suarez, Kinstler, Daniel Paul, Kinstler, Daniel, Staab, Jeffrey P.

AACN Advanced Critical Care | February 27, 2026 | Volume: 37 | Issue: 1 | Pages: 70-75

10.4037/aacnacc2026437 | PMID 41758701 Get It

Background Cardiovascular disease is linked to mental health conditions. Patients with cardiovascular disease and comorbid psychiatric illnesses such as major depressive disorder or generalized anxiety disorder often experience greater physical limitations and decreased overall health. Objective To determine if proactive psychiatric interventions improve staff satisfaction and patient outcomes, such as reducing length of stay and decreasing the 30-day readmission rate, for patients hospitalized on cardiac units with psychiatric comorbidities. Methods The implementation of a proactive psychiatric consultation-liaison service, which included proactive screening of psychiatric needs among patients hospitalized on cardiac units, targeted support for cardiovascular staff, and supportive interactions for patients. Results Comparison between preintervention and postintervention periods indicated a 21% reduction in the 30-day readmission rate for patients hospitalized on cardiac inpatient units with psychiatric comorbidities without adversely affecting hospital length of stay. Staff satisfaction significantly increased with the availability of psychiatric resources. Conclusion The implementation of a multi-disciplinary proactive psychiatric consultation-liaison service on inpatient cardiac units was associated with an increase in cardiovascular staff satisfaction with psychiatric services and a decrease in the 30-day readmission rate of patients with psychiatric comorbidities who were hospitalized for cardiovascular services without significantly affecting length of stay.
Empowering Women in Academic Emergency Medicine: A Time-Efficient Leadership Workshop Incorporating AI-Coaching to Enhance Skills
Mishkin, Hannah, Lema, Penelope C. , Binz, Nikki, Walker, Laura, Platt, Melissa , Sun, Wendy W., Werner, Sandra, Sethuraman, Kinjal , Walker, Laura, Chekijian, Sharon , Linden, Judith A. , Thomas, Ynhi T. , Raukar, Neha P.

No container title available | February 26, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.17918/00011273 Get It

Inflammation, Limbic White Matter Microstructure, and Clinical Symptoms in Retired American Football Players With Repetitive Head Impacts
Emanuel, Olivia M. , Miner, Annalise E., Lee, Shannon, Tanner, Jared J. , Holgerson, Allison A. , Tuz‐Zahra, Fatima , Tripodis, Yorghos, Adler, Charles H., Balcer, Laura J. , Bernick, Charles, Zetterberg, Henrik, Blennow, Kaj, Ashton, Nicholas J., Peskind, Elaine R. , Banks, Sarah J., Barr, W, Wethe, Jennifer V. , Cantu, Robert C., Coleman, Michael J., Dodick, David W., McClean, M M, Mez, Jesse, Palmisano, Joseph, Martin, Brett, Lin, Alexander P., Pasternak, Ofer , Cummings, Jeffrey L., Reiman, Eric M., Shenton, Martha E., Stern, Robert A., Bouix, Sylvain, Alosco, Michael L., Tripodis, Yorghos , Lee, Shannon Y. , Lee, Shannon Y , Matusz, Emily F , Tuz-Zahra, Fatima , Tripodis, Yorghos , Adler, C H , Balcer, Laura J , Bernick, Charles , Zetterberg, Henrik , Blennow, Kaj , Ashton, Nicholas J , Peskind, Elaine R , Banks, Sarah J , Barr, William B , Wethe, Jennifer V , Cantu, Robert C , Coleman, Michael J , Dodick, David W , McClean, Michael D , Mez, Jesse , Palmisano, Joseph , Martin, Brett , Lin, Alexander P , Pasternak, Ofer , Koerte, Inga K , Cummings, Jeffrey L , Reiman, Eric M , Shenton, Martha E , Stern, Robert A , Bouix, Sylvain , Alosco, Michael L , Asken, Breton M , Miner, Annalise E., Marsiske, Michael , Ly, Monica T. , Adler, Charles H. , Bernick, Charles , Blennow, Kaj , Ashton, Nicholas J. , Banks, Sarah J. , Barr, William , Cantu, Robert C. , Coleman, Michael J. , Dodick, David W. , Mez, Jesse , Palmisano, Joseph , Reiman, Eric M. , Shenton, Martha E. , Alosco, Michael L. , Asken, Breton M.

Neurology | February 25, 2026 | Volume: 106 | Issue: 6 | Pages: No page available

10.1212/wnl.0000000000214646 | PMID 41740080 Get It

Factors associated with subjective cognitive complaints in former American football players
Adler, Jennifer S. , Yhang, Eukyung , Tripodis, Yorghos, Adler, Charles H., Balcer, Laura J. , Bernick, Charles, Ashton, Nicholas, Zetterberg, Henrik, Blennow, Kaj, Peskind, Elaine, Banks, Sarah J., Barr, W, Wethe, Jennifer V. , Bondi, Mark W., Delano-Wood, Lisa, Cantu, Robert C., Coleman, Michael J., Dodick, David W., Daneshvar, Daniel H., McClean, M M, Mez, Jesse, Palmisano, Joseph N., Martin, Brett, Lin, Alexander P., Bouix, Sylvain, Cummings, Jeffrey L., Shenton, Martha E., Reiman, Eric M., Stern, Robert A., Alosco, Michael L. , Alosco, Michael L , Wethe, Jennifer V , Ly, Monica T. , Tripodis, Yorghos , Adler, Charles H. , Bernick, Charles , Blennow, Kaj , Peskind, Elaine R. , Banks, Sarah J. , Barr, William , Bondi, Mark W. , Delano‐Wood, Lisa , Cantu, Robert C. , Coleman, Michael J. , Dodick, David W. , Daneshvar, Daniel H. , McClean, Michael D , Mez, Jesse , Palmisano, Joseph , Koerte, Inga K , Bouix, Sylvain , Cummings, Jeffrey L. , Shenton, Martha E. , Reiman, Eric M.

Journal of the International Neuropsychological Society | February 25, 2026 | Volume: 32 | Issue: 2 | Pages: 132-146

10.1017/s1355617726101866 | PMID 41738687 Get It

Abstract Objective: Subjective cognitive complaints (SCC) can precede cognitive decline and are associated with demographic, exposure, lifestyle, and psychological factors. Prevalences of SCC and their correlates in individuals with repetitive head impacts (RHI) are poorly understood. This study characterized SCC in former elite American football players by frequency, mood and behavioral correlates, concordance with informant reports, and associations with neuropsychological test performance, cerebrospinal fluid (CSF), and magnetic resonance imaging (MRI) markers of neurodegeneration. Method: Former American football players ( n = 180) completed measures of global and domain-specific SCC, neuropsychiatric symptom questionnaires, neuropsychological testing, lumbar puncture, and MRI. Elastic net regression evaluated the relative importance of potential SCC correlates. Intraclass correlation coefficients measured concordance between self and informant reports. Multiple linear regressions tested associations between SCC and verbal memory and executive functioning scores. CSF Aβ 1-42 , p-tau 181 , t-tau, neurofilament light (NfL), hippocampal volume, and regional cortical thickness were examined for their potential associations with SCC. Results: Rates of SCC ranged from 43 to 77% depending on the domain. Symptoms of depression, impulsivity, and anxiety were strongly associated with SCC. Self- and informant-reported SCC showed moderate inter-rater agreement. Adjusting for age, race, education, APOE ϵ4 carrier status, and depressive symptoms, SCC were associated with lower objective verbal memory and executive functioning performance. SCC were associated with lower parahippocampal cortical thickness but not with hippocampal volume or any of the measured CSF tests. Conclusions: SCC are strongly associated with neuropsychiatric factors in former American football players. SCC may also be a marker of cognitive decline and neurodegeneration.
Impact of SGLT2 Inhibitors on Kidney Function Among People With HIV: A US Prospective Multisite Study
Haidar, Lara, Crane, Heidi M, Nance, Robin M., Bamford, Laura, Burkholder, Greer, Cachay, Edward, Christopoulos, Katerina, Commanday, Alexander, Aboulatta, Laila, Delaney, J A C, Fahey, Carolyn, Heath, S. S., Kalayjian, Robert, Kitahata, Mari M, Kyle, Ryan, Mayer, K., Moore, Richard D, Pettit, April C, Napravnik, Sonia, Saag, M. S., Willig, Amanda L., Whitney, Bridget M. , Kyle, Ryan P. , Eltonsy, Sherif , Haidar, Lara, Crane, Heidi M. , Nance, Robin M. , Doupe, Malcolm Bray , Leong, Christine , Burkholder, Greer , Cachay, Edward R. , Christopoulos, Katerina A. , Delaney, Joseph A. , Drumright, Lydia N. , Kalayjian, Robert C. , Kitahata, Mari M. , Kyle, Ryan P., Moore, Richard D. , Pettit, April Christine , Napravnik, Sonia , Ruderman, Stephanie A. , Willig, Amanda L

JAIDS Journal of Acquired Immune Deficiency Syndromes | February 24, 2026 | Volume: 101 | Issue: 6 | Pages: 680-687

10.1097/qai.0000000000003854 | PMID 41733274 Get It

Background: Sodium–glucose cotransporter 2 inhibitors (SGLT2i) are nephroprotective but are associated with early eGFR decline, also termed “eGFR dip.” Despite elevated risk of kidney disease, this phenomenon is understudied among people with HIV (PWH). Methods: In a 1:1 propensity score–matched cohort study using data from 9 Centers for AIDS Research Network of Integrated Clinical Systems (CNICS) sites, we compared new SGLT2i users with new users of other antihyperglycemic classes. We estimated adjusted hazard ratios (aHRs) for time to ≥10% and ≥30% eGFR decline using multivariable Cox proportional hazards models and analyzed eGFR change using multivariable linear mixed models. In addition, longer-term eGFR trends over 24 months were visualized using locally weighted scatterplot smoothing (LOWESS) curves. Results: Among 1554 eligible PWH, we obtained 295 matched pairs. Over 6 months, eGFR decline incidence of ≥10% and ≥30% was higher among users of SGLT2i versus other antihyperglycemic classes (58.2% vs. 37.4%; aHR: 1.79; 95% CI: 1.40%–2.28%; and 17.3% vs. 9.8%; aHR: 1.69; 95% CI: 1.05–2.73; respectively). The adjusted mean eGFR change at 6 months was −2.62 mL/min/1.73 m 2 for SGLT2i versus 0.05 mL/min/1.73 m 2 for other classes. Long-term eGFR trends revealed an expected initial decline after SGLT2i initiation, followed by stabilization and a slower subsequent decline compared with other classes. Conclusions: Acute eGFR dips were more common among PWH initiating SGLT2i relative to other antihyperglycemic classes, although overall declines were small, transient, and consistent with the general population. Further research is needed to explore the long-term effects of SGLT2i in PWH.
Evidence that extra copies of chromosome 1q play a role in the early phases of pancreatic neoplasia
Douville, Christopher, Parksong, Jeeun , Molin, Marco Dal, Graham, Sarah , Greipp, Patricia T. , Knudson, Ryan A., Curtis, Samuel , Wang, Yuxuan , Dobbyn, Lisa , Popoli, Maria , Ptak, Janine , Silliman, Natalie , Romans, Katharine , Iacobuzio-Donahue, Christine A., Makoohon-Moore, Alvin P., Goggins, Michael, Hruban, Ralph H., Kiemen, Ashley, Bettegowda, Chetan, Kinzler, Kenneth W., Papadopoulos, Nickolas, Wood, Laura D, Vogelstein, B., Goggins, Michael , Hruban, Ralph H. , Papadopoulos, Nickolas , Kinzler, Kenneth W. , Bettegowda, Chetan , Douville, Christopher , Iacobuzio–Donahue, Christine A. , Wang, Yuxuan , Wood, Laura D. , Molin, Marco Dal , Douville, Christopher , Dal Molin, Marco , Knudson, Ryan, Iacobuzio-Donahue, Christine A , Lennon, Anne Marie , Goggins, Michael G , Hruban, Ralph H , Kiemen, Ashley , Bettegowda, Chetan , Kinzler, Kenneth W , Papadopoulos, Nickolas , Wood, Laura D , Vogelstein, Bert , Ptak, Janine , Dobbyn, Lisa , Silliman, Natalie , Greipp, Patricia T , Vogelstein, Bert

Science Advances | February 20, 2026 | Volume: 12 | Issue: 8 | Pages: No page available

10.1126/sciadv.adx7501 | PMID 41719404 Get It

We searched for oncogenes activated by copy number increases using whole-genome sequencing data of 535 pancreatic ductal adenocarcinomas (PDACs). We found that gains of 1q were the second most common gain, occurring in 213 (39.8%) of PDACs. Single-cell analysis via fluorescence in situ hybridization on 33 cancers confirmed these results. A portion of 1q, rather than the entire 1q arm, was gained in 75 (14.0%) PDACs, allowing us to pinpoint two ~3-megabase regions of 1q that were nearly always gained. These two regions contained NCSTN and PSEN2 , genes that code two subunits of the γ-secretase complex. Evaluation of 267 precancerous lesions revealed that extra copies of NCSTN and PSEN2 were common (49%) in noninvasive neoplasms (high-grade pancreatic intraepithelial neoplasms), which are at relatively high risk for progression to PDACs, but uncommon (6%) in low-grade pancreatic intraepithelial neoplasia lesions, which have low malignant potential. We hypothesize that γ-secretase genes are genetically activated oncogenes in the early phases of pancreatic neoplasia.
Abstract B032: Characterization of αPD1, αPD-L1, αCTLA4, and αLAG3 as mono and combination therapy in live tumor fragments using an ex vivo cytokine profiling platform
Adstamongkonkul, Pichet , Kulkarni, Tanmay, Nasreen, Amreen , Marhefke, Nathan, Chen, Nina, Ramasubramanian, T S., Hrycyniak, Laura , Zweng, Julie, Euw, Erika von , Vivelo, Christina A. , Mukhopadhyay, D., Ramos, Hilario J. , Cunin, Pierre , Bhattacharya, Santanu , Ramasubramanian, T. S., Caenepeel, Sean , Mukhopadhyay, Debabrata , Gierman, Hinco J.

Cancer Immunology Research | February 19, 2026 | Volume: 14 | Issue: 2_Supplement | Pages: B032-B032

10.1158/2326-6074.io2026-b032 Get It

Abstract Background While immune checkpoint inhibitors (ICIs) provide durable clinical benefit in a subset of patients, current biomarkers to predict response lack accuracy. Ex vivo cytokine profiling has shown promise for improved accuracy but has been mostly limited to ICIs targeting PD-1 [Voabil et al, 2021]. This poses the question of whether ICIs beyond αPD-1 – such as CTLA4 blockade, which has been reported to act within the draining lymph node – would be amenable to similar approaches. The Elephas platform characterizes response to ICIs in live tumor fragments (LTFs) from core needle biopsies (CNBs) and resections using longitudinal cytokine profiling. Using a panel of 7 clinically relevant ICI regimens, we demonstrate cytokine responses across diverse tumor types, characterize similarities and differences in cytokine response profiles across different ICIs, and explore specimen variability in responses across ICI treatments. Methods CNBs were collected through 3 observational clinical trials (NCT05478538, NCT05520099, NCT0634962) and a biobank collection study, while resections were procured from NCI CHTN. LTFs were generated using an automated cutting device and encapsulated in hydrogel. LTFs were treated with mono (αPD-1, αPD-L1, αCTLA4, αLAG-3) or combination therapy (αPD-1/αCTLA4, αPD-1/αLAG-3, αPD-L1/αCTLA4) using a sequential treatment strategy in which isotype control followed by ICI were added to the same tissue in a single well. This approach enabled the comparison of control and treatment conditions while mitigating the effects of tumor heterogeneity. Production rates for 46 cytokines were measured using a multiplex assay. Remaining T-cell reactivity was also evaluated at the end of the assay to better understand the presence of functional T cells in LTFs. Results Unsupervised hierarchical clustering of cytokine profiling data from CNB LTFs across 129 patients identified defined responder and non-responder clusters. Within the response cluster, 4 subclusters with distinct immune phenotypes were identified. While tight clustering of samples treated with the same ICI was not observed, some enrichment of samples treated with combination ICIs was observed within individual subclusters. Further, cytokine responses to αCTLA4 monotherapy were observed, suggesting that CTLA4 blockade may act beyond the draining lymph node. LTFs from resections enabled the characterization of cytokine response profiles across treatment conditions within individual specimens, including the magnitude of cytokine response and variability in cytokine response profiles. Evaluation of T-cell reactivity provided further insight into the presence of functional T-cells in LTFs and the extent of T-cell activation achieved by ICI treatment. Conclusions This study demonstrates the platform’s ability to recapitulate diverse mechanisms of immune activation ex vivo, enabling the characterization of cytokine responses to clinically relevant ICI mono or combination therapy in live tumor tissue and supporting future efforts to improve ICI response prediction beyond αPD-1. Citation Format: Pichet Adstamongkonkul, Pierre Cunin, Santanu Bhattacharya, Tanmay Kulkarni, Amreen Nasreen, Nathan Marhefke, Nina Chen, T S. Ramasubramanian, Laura Hrycyniak, Julie Zweng, Erika von Euw, Christina Vivelo, Sean Caenepeel, Debabrata Mukhopadhyay, Hinco Gierman, Hilario Ramos. Characterization of αPD1, αPD-L1, αCTLA4, and αLAG3 as mono and combination therapy in live tumor fragments using an ex vivo cytokine profiling platform [abstract]. In: Proceedings of the AACR Immuno-Oncology Conference (AACR IO): Discovery and Innovation in Cancer Immunology: Revolutionizing Treatment through Immunotherapy; 2026 Feb 18-21; Los Angeles, CA. Philadelphia (PA): AACR; Cancer Immunol Res 2026;14(2 Suppl):Abstract nr B032.
Rapid Genome and Exome Sequencing in Inpatients: Clinical Impact at a Tertiary Academic Medical Center
Kessler, Cecilia , Talbert, Janet, Duncan, Laura, Mosera, Mackenzie, Kessler, Cecilia M , Jasper, Elizabeth A , Schuler, Bryce A. , Duncan, Laura , Mosera, Mackenzie

American Journal of Medical Genetics Part A | February 18, 2026 | Volume: 200 | Issue: 6 | Pages: 1337-1346

10.1002/ajmg.a.70083 | PMID 41704091 Get It

ABSTRACT The objective of this study is to describe outcomes of rapid exome (rES) and rapid genome sequencing (rGS) in an inpatient setting. This is a retrospective cohort of inpatients with rES or rGS during their hospitalization between April 2016 and November 2023. Medical records were reviewed to measure primary outcomes: diagnostic yield, medical management changes, and anticipatory guidance updates. Descriptive analysis and formal comparisons (Welch's t ‐test with post hoc power analysis, Fischer's exact test) were performed, with rES and rGS comparisons limited to 2023 due to test distribution. Of 95 patients, most (74.7% [71/95]) were < 12 months old and admitted in neonatal (44.2% [42/95]) or pediatric (29.5% [28/95]) intensive care units. Common indications for rapid sequencing included multiple congenital anomalies (24.2% [23/95]), neurological concerns (23.3% [22/95]), and acute illness (16.8% [16/95]). Mean turnaround time of testing significantly shortened for rES from 2021 (13.2 [SD = 5.9] days) to 2023 (8.1 [SD = 4.1] days) ( p ‐value = 0.018; power = 0.74). Diagnostic yield was 29.5% (28/95) and did not significantly differ between rES (13.6% [3/22]) and rGS (35.0% [7/20]) ( p ‐value = 0.15). Sequencing led to medical management changes (86.0% [74/86]) and anticipatory guidance updates (41.4% [39/95]) with similar rates observed in diagnostic and non‐diagnostic tests. Our findings suggest rES or rGS implementation may influence diagnosis and care strategies in critically ill patients.
Abstract PS2-12-02: An Innovative Postbiotic Product Based on Sequential Fermentation of L.paracasei NPB01 and L.rhamnosus GG Demonstrates Antitumor Activity against Breast Cancer
Canani, R. Berni, Luongo, C., Santillo, Roberta Di, Gaeta, A., Scocco, C., Michelini, Marco, Mauriello, V., Cadavere, A., Messuri, Carla, Chumsri, S., Mussallem, Dawn M. , Cadavere, Alessia , Canani, Roberto Berni , Pisapia, Laura , Michelini, M., Mauriello, Vittoria, Chumsri, S.

Clinical Cancer Research | February 17, 2026 | Volume: 32 | Issue: 4_Supplement | Pages: PS2-12-02-PS2-12-02

10.1158/1557-3265.sabcs25-ps2-12-02 Get It

Abstract Backgroud. Breast cancer (BC) is the most common and deadly cancer affecting women globally. While traditional treatments are used, factors limit their effectiveness, such as tumor heterogeneity, drug resistance, and non-targeted actions on cancer cells. Emerging evidence highlights the role of gut microbiota in modulating breast cancer risk, treatment response, and recurrence through various mechanisms, including the production of biologically active compounds and metabolites. These non-viable microbial products and metabolic byproducts from probiotic fermentation, known as postbiotics, exert beneficial effects on the host without the need for live microorganisms. Postbiotics derived from Lacticaseibacillus species represent a novel class of therapeutics with potential anti-cancer properties. In this study, we investigated the therapeutic effects of an innovative postbiotic product (iPB), developed through sequential fermentation of L.paracasei NPB01 and L.rhamnosus GG, in BC experimental models. Methods. The following cell lines were used to represent main BC subtypes: MCF7 cells (HR+/HER2-), MDA-MB-231 (triple negative breast cancer), SKBR3 (HER2+). MCF-10A (normal breast epithelial cells) and Caco-2 (enterocytes) cell lines were used as control. Cell viability was assessed by colony formation assay. Apoptosis was evaluated using Annexin V and 7-AAD staining and HLA class I surface expression was quantified by flow cytometry. Wound healing assay was applied to investigate the inhibitory effect of iPB on cell migration. Results. The iPB exposure resulted in &gt;50% colony formation reduction in MCF7, MDA-MB-231 and SKBR3 cells starting from 0.5 mg/ml for 72 h. Furthermore, the iPB significantly increased early apoptotic cell rate in MCF7 cells starting at 0.5 mg/ml for 96 h. A similar trend was observed in MDA-MB231 and SKBR3 cells exposed to 5 mg/ml for 96 h iPB, as well as significant increase in late apoptotic cells detected by 7-AAD. On the contrary, control cells (MCF-10A, Caco-2) viability remained unaffected by the iPB exposure up to 5 mg/ml for 96 h. Evaluation of HLA class I surface expression revealed up to 30% increase in HLA class I expression in MCF7 cells induced by iPB starting at 0.5 mg/ml for 96 h, MDA-MB-231 cells at 1 mg/ml for 72 h, and SKBR3 cells at 5 mg/ml for 72 h, but there was no significant changes in MHC class I expression in control cells. Finally, the results of wound healing analysis revealed that iPB induced an up to 30% reduction in cell migration in all BC cell models, compared to the untreated cells where it induced a full wound closure. Conclusions. The iPB product reduces cell viability and cell migration in all main BC subtypes. These effects parallel with HLA class I surface expression increase in all BC cell phenotypes, potentially enhancing immunogenicity. These findings suggest that this iPB product may represent a promising novel agent in BC treatment and prevention. Citation Format: R. Berni Canani, C. Luongo, L. Pisapia, R. Di Santillo, A. Gaeta, C. Scocco, M. Michelini, V. Mauriello, A. Cadavere, C. Messuri, S. Chumsri, D. Mussallem. An Innovative Postbiotic Product Based on Sequential Fermentation of L.paracasei NPB01 and L.rhamnosus GG Demonstrates Antitumor Activity against Breast Cancer [abstract]. In: Proceedings of the San Antonio Breast Cancer Symposium 2025; 2025 Dec 9-12; San Antonio, TX. Philadelphia (PA): AACR; Clin Cancer Res 2026;32(4 Suppl):Abstract nr PS2-12-02.
Abstract PS2-07-13: Prognostic and predictive role of RBsig and CCNE1/RB1 gene-expression signatures for patients with early breast cancer treated with endocrine therapy with or without palbociclib in the PALLAS trial (ABCSG-42, AFT-05, BIG 14-03)
Malorni, L., Mayer, E. L., Benelli, M., Biganzoli, L., Migliaccio, Ilenia , Kermanidis, Anna Sophia, Pfeiler, G., Mamounas, E. P., Brufsky, A. M., Bellet-Ezquerra, M., Clifton, Katherine , Foukakis, T., Goetz, M. P., Lee, S., Ruiz-Borrego, M., Symmans, W. F., Ballman, K. V., Liu, F., Machacek-Link, J., Denkert, C., DeMichele, A. M., Gnant, M., Malorni, L., Hlauschek, Dominik , Benelli, Matteo , Biganzoli, Laura , Pfeiler, G., Mamounas, EP, Brufsky, Adam , Clifton, Katherine , Rubovsky, Gabor , Foukakis, Theodoros , Goetz, Matthew P. , Ruíz-Borrego, Manuel , Symmans, W. Fraser , Ballman, K. V., Machacek‐Link, Jana, DeMichele, Angela , Gnant, Michael

Clinical Cancer Research | February 17, 2026 | Volume: 32 | Issue: 4_Supplement | Pages: PS2-07-13-PS2-07-13

10.1158/1557-3265.sabcs25-ps2-07-13 Get It

Abstract Background: We have identified two potentially predictive signatures of palbociclib resistance: the RBsig, composed of E2F1/E2F2 dependent genes, which is associated with genetic loss of RB1, and the ratio between the gene expression levels of CCNE1 to RB1 (CCNE1/RB1). Both signatures have been previously analyzed in vitro and in neoadjuvant and metastatic studies with palbociclib. The present analysis aims to explore the role of RBsig and CCNE1/RB1 in the phase III adjuvant PALLAS trial, which randomized patients to palbociclib plus endocrine therapy, versus endocrine therapy alone. Materials and methods: Gene expression data from PALLAS were generated using the HTG EdgeSeq Oncology BM Panel. Of the 87 genes composing RBsig, 46 were available within the EdgeSeq dataset and were used for the analyses; CCNE1 and RB1 were both available. RBsig was calculated as the mean of the Z-score scaled gene expression (log) of the 46 genes; CCNE1/RB1 was computed as the log ratio between the mRNA expression of CCNE1 and RB1. The prognostic/predictive effect of the continuous signatures in terms of invasive disease-free survival (IDFS), distant recurrence-free survival (DRFS), and overall survival (OS) was evaluated using Cox proportional hazard models. Results: HTG data were available from 2,587 of 5,748 patients from the entire PALLAS intention-to-treat (ITT) cohort. As RBsig and CCNE1/RB1 levels are affected by pre-surgical treatments, we limited the analyses to 1612 pre-treatment samples (530 core biopsies and 1082 surgical specimens) (analysis population). Compared with the entire PALLAS ITT cohort, the analysis population was significantly enriched for patients with low clinical risk (41.3% vs 59.4%) who did not receive prior chemotherapy (17.5% vs 55.9%). In keeping with the PALLAS ITT cohort, no significant benefit from the addition of palbociclib was observed in the analysis population. Higher baseline RBsig or CCNE/RB1 values were significantly and independently associated with worse IDFS (hazard ratio [HR] 1.63, 95% confidence interval [CI] 1.3-2.0; HR 1.22, 95%CI 1.1-1.3, respectively), DRFS (HR 1.94, 95%CI 1.5-2.5; HR 1.26, 95%CI 1.1-1.4, respectively) and OS (HR 1.79, 95% CI 1.3-2.4; HR 1.26, 95%CI 1.1-1.4, respectively) in the analysis population. No predictive effect of palbociclib benefit was observed for either signature in the analysis population, nor according to clinical risk or chemotherapy receipt. Interestingly, higher RBsig was strongly prognostic in patients who did not receive adjuvant chemotherapy (HR 1.83, 95%CI 1.4-2.3) but not in those who received it (HR 1.01, 95%CI 0.6-1.6) (interaction p=0.02) suggesting a potential predictive role of RBsig for chemotherapy benefit. Conclusions: In the PALLAS trial, higher baseline RBsig or CCNE1/RB1 values are associated with worse prognosis, but are not predictive of benefit from palbociclib in the adjuvant setting. RBsig might be associated with differential benefit from chemotherapy. Further study of these biomarkers may strengthen their role in risk stratification.https://acknowledgments.alliancefound.org Citation Format: L. Malorni, D. Hlauschek, E. Mayer, M. Benelli, L. Biganzoli, I. Migliaccio, A. Kermanidis, G. Pfeiler, E. P. Mamounas, A. M. Brufsky, M. Bellet-Ezquerra, K. Clifton, G. Rubovszky, T. Foukakis, M. Goetz, S. Lee, M. Ruiz-Borrego, W. Symmans, K. V. Ballman, F. Liu, J. Machacek-Link, C. Denkert, A. DeMichele, M. Gnant. Prognostic and predictive role of RBsig and CCNE1/RB1 gene-expression signatures for patients with early breast cancer treated with endocrine therapy with or without palbociclib in the PALLAS trial (ABCSG-42, AFT-05, BIG 14-03) [abstract]. In: Proceedings of the San Antonio Breast Cancer Symposium 2025; 2025 Dec 9-12; San Antonio, TX. Philadelphia (PA): AACR; Clin Cancer Res 2026;32(4 Suppl):Abstract nr PS2-07-13.