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Achieving balance in upper limb spasticity management
Lam, Wee Leon, Luria, Shai , Rhee, Peter, Lam, Wee , Leclercq, Caroline , Luria, Shai , Rhee, Peter C , Leclercq, Caroline

Mayo Clinic

Journal of Hand Surgery (European Volume) | March 28, 2026 | Volume: 51 | Issue: 6 | Pages: 737-746

10.1177/17531934261434453 | PMID 41902533 Get It

Introduction: Upper limb spasticity can result from a variety of insults to the central nervous system. Disruption of the closely regulated spinal reflex arc, owing to loss of brain inhibition, results in an imbalance between antagonist and agonist muscle groups, leading to a loss of fluid coordination of motion across joints. Management strategies: A detailed, individualized assessment of each patient is mandatory in a multidisciplinary setting. Although there are objective parameters which guide treatment, variation and customization of strategies are needed for each patient, including defining a functional vs. a non-functional hand, and whether mobility or stability is the primary goal for surgery. Challenging areas in spasticity management: Surgical options include bony, tendon and nerve procedures. These aim to reduce tone, release contractures or reanimate paralysed muscles. This article examines four challenging areas in decision making for choosing these options: lengthening vs. hyperselective neurectomy for tone management, stability vs. mobility in wrist spasticity, grasp and release recovery through finger flexion and extension, and dystonia. Evidence-based treatments are discussed where available, along with key unresolved issues and future research directions. Conclusion: Restoring balance in the spastic upper limb, especially when voluntary control is lost, remains one of the most complex challenges in hand surgery. A thorough understanding of biomechanical principles and neurological pathways is necessary for the hand surgeon. Furthermore, working within a multidisciplinary team is essential to utilize a comprehensive array of assessment tools, ensuring accurate diagnosis and individualized patient care.
Evolution and Transformation of Hypertrophic Cardiomyopathy From a High Risk to a Treatable Low Mortality Disease With Contemporary Clinical Research Strategies
Maron, Barry J. , Ommen, Steven R., Ra, Nishimura, McKenna, William J. , Rakowski, H., Olivotto, I, Braunwald, Eugene, Maron, Martin S., Nishimura, Rick A. , McKenna, William J. , Olivotto, Iacopo , Ommen, Steve R , Nishimura, Rick A , Rakowski, Harry , Sherrid, Mark , Olivotto, Iacopo , Maron, Martin S , Maron, Barry J. , Ommen, Steve R. , Sherrid, Mark V. , Braunwald, Eugene , Maron, Martin S.

Mayo Clinic

Journal of the American Heart Association | March 25, 2026 | Volume: 15 | Issue: 12 | Pages: No page available

10.1161/jaha.125.047462 | PMID 41878858 Get It

Once considered rare and essentially untreatable with a grim prognosis and reduced life expectancy, hypertrophic cardiomyopathy (HCM) has evolved substantially over 6 decades. Ultimately, HCM has become a contemporary global disease with pharmacologic and interventional options offering effective personalized treatment for all adverse disease pathways. Striking reduction in HCM‐related mortality to ≤0.5%/year in optimally treated cohorts is now comparable to that expected in the US general population, lower than most other disease risks to living, and 10‐fold less than the earliest estimates. The few deaths directly related to HCM are now largely attributable to advanced (end‐stage) heart failure in patients with nonobstructive HCM. Determinants of this transformation to a lower risk disease are evident in hallmark clinical inflection points and breakthroughs, including dedicated HCM programs assembling large clinical databases in which focused (and unfunded) physician‐investigators have derived data directly from patients in clinical practice. Evidence‐based observational studies report emergence of contemporary treatment strategies enhancing survival: implantable defibrillators prevent arrhythmic sudden death globally with 95% sensitive patient selection using an American Heart Association/American College Cardiology risk stratification algorithm; low‐risk, high‐benefit surgical myectomy reverses outflow obstruction and heart failure in >90% with a long‐term survival benefit; and aggressive anticoagulation has reduced embolic strokes. Recent novel pharmacologic alternatives (cardiac myosin inhibitors) are proving effective in relieving obstruction/symptom burden and changing disease management. These principles and time‐tested patient‐centered research strategies uniquely tailored to the heterogeneous HCM clinical spectrum are pivotal in providing practice insights, offering a vulnerable population more optimistic prognosis including opportunity to achieve normal longevity not available to prior generations of patients.
Microbiome and Vocalization Biomarkers of Infant Distress, Maternal Depression and Parenting Styles
Ligezka, Anna, Lynch, Brian , Saliba, Maria , Corral-Frias, Martha, Johnson, S., Chen, Jun, Allen, Summer V. , Frank, Jennifer M., Voort, Jennifer L. Vande, Croarkin, Paul E. , Romanowicz, Magdalena , Lynch, Brian A , Vande Voort, Jennifer L , Croarkin, Paul E , Ligezka, Anna N. , Chen, Jun, Voort, Jennifer L. Vande

Mayo Clinic

Chronic Stress | March 2, 2026 | Volume: 10 | Issue: No issue available | Pages: No page available

10.1177/24705470261425120 | PMID 41782637 Get It

Introduction Psychiatric disorders have their genesis in early life. Standard screening approaches during well child visits for pathological infant distress, maternal depression, and dysfunctional parenting behaviors are likely inadequate. Microbiome measures and infant vocalizations have promise as scalable psychiatric biomarkers for infants. The purpose of this study was to examine associations among infant gut colonization based on microbiome measurements with maternal distress and maternal depressive symptoms in a sample of infants. Methods This study sought to examine infant microbiome correlates of infant distress, parent-infant interactions, maternal distress, and maternal depressive symptoms. We collected ( N = 31) microbiome samples, infant vocalizations during vaccination, and behavioral measures during a 4 month well child visit (WCV) and did a battery of clinical assessments to assess for maternal depression, parent-child interactions, family characteristics and family stress. Whole-genome SHOTGUN sequencing was utilized to identify three types of associations: alpha-diversity using Shannon and Inverse-Simpson indexes, beta-diversity using Bray-Curtis and Jaccard distances, and differential abundance using LinDA. Spectral measures of infant cries were also modeled to assess potential relationships with clinical assessments and the microbiome. Results There were 19 phyla, 417 genera, and 1246 species identified with taxonomic classification. Maternal distress as measured by PHQ-9 scores obtained when infants were 2 months old were associated with 4 bacterial species ( Actinomyces johnsonii, Bilophila wadsworthia, Clostridium dakarense and Ruminococcus flavefaciens ; FDR < 0.1) and beta-diversity ( p = 0.006-BC; p = 0.005-Jaccard). Infant cries with greater high frequency band power ( p < 0.03) and a greater high-to-mid frequency ratio–metrics ( p < 0.05) were associated with altered α-diversity of the microbiome. No correlations were present between maternal PHQ-9 at 4 months, PSI-IV and microbiome diversity. Conclusion The present findings suggest that an infant stress (assessed by quality of crying) is associated with lower microbiome diversity. Decreased diversity reflects an unhealthy microbiome. Parental depressive symptoms may also influence infant microbiome. Future interventional studies focused on the quality of the infant-caregiver relationship should examine related changes in intestinal microbiota.
Transforming psychological practice with precision mental health: introduction to the NOVA project
Roca, Pablo, Noheda, Sara , Ramírez-Riveros, Eduar, Martín-Azañedo, Carolina, Martínez-Zaragoza, Fermín, Zangri, Rosaria María , Valle, Eduardo P. García del, Sanchez-Pedreño, Martin, León-García, Montserrat, Gravholt, Derek Loy, Saunders, Rob, Vázquez, Carmelo, Rodriguez‐Moreno, Sara , Roca, Pablo , Saunders, Rob , Roca, Pablo , Martínez‐Zaragoza, Fermín , Zangri, Rosaria María , Valle, Eduardo P. García del , Sanchez-Pedreño, Martin , León‐García, Montserrat , Enrique, Ángel , Saunders, Rob , Herrera, Luis Javier , Pegalajar, M.C. , Vázquez, Carmelo

Mayo Clinic

Frontiers in Psychology | February 27, 2026 | Volume: 17 | Issue: No issue available | Pages: No page available

10.3389/fpsyg.2026.1775489 | PMID 41835880 Get It

Evidence-Based Practice (EBP) has increased the availability of psychological treatments, yet many people do not benefit from therapy, some report deteriorations in symptoms, and dropout rates remain high. Precision Mental Health (PMH) is proposed as an extension of EBP by combining systematic measurement with predictive analytics to support the right intervention, at the right time, for the right person. Recent advances in Artificial Intelligence (AI) make PMH increasingly feasible in routine psychotherapy; however, the implementation of these approaches in routine care is still incipient. In this context, the present article has two main aims. First, we summarize key advances in PMH, particularly measurement-based care and data-informed decision making. Second, we introduce the NOVA project (Navigating Outcomes via Analytics), a multi-phase translational program designed to implement PMH in real-world psychological services. Guided by the Implementing Precision Methods framework, NOVA integrates (i) stakeholder-informed work on clinician acceptability and intention to use, (ii) pragmatic evaluation of decision support tools in routine care, (iii) development of robust and interpretable predictive models, and (iv) training and dissemination activities aligned with responsible innovation and professional competencies for AI-supported precision care. By detailing NOVA’s implementation pathway, we aim to provide a concrete roadmap for bridging AI innovation and psychological practice, accelerating the sustainable adoption of PMH in real-world settings.
Normal Weight Obesity and Grip Strength: A Cross-Sectional Study
Alvarez-Villalobos, Neri, Porras-Barrientos, Carlos, Elizondo-Omaña, Gabriela G. , Burciaga-Muñoz, Alejandro , Álvarez‐Villalobos, Neri Alejandro , Álvarez-Villalobos, Neri A

Mayo Clinic

Obesities | February 23, 2026 | Volume: 6 | Issue: 1 | Pages: 14

10.3390/obesities6010014 Get It

Obesity is a global health concern affecting all income levels, with body mass index (BMI) traditionally used for diagnosis. However, BMI does not accurately reflect body composition. Normal weight obesity (NWO) describes individuals with a normal BMI but elevated body fat percentage and has been associated with metabolic abnormalities and reduced physical fitness. This cross-sectional study included 384 adults aged 18–40 years with a BMI between 18.5 and 24.9 kg/m2. Anthropometric measurements and body composition were assessed using an InBody H20 bioelectrical impedance device, and handgrip strength was measured with a Camry electronic dynamometer. NWO was defined as body fat percentage ≥20% in men and ≥30% in women. The overall prevalence of NWO was 77.3%. Although prevalence appeared higher in men than in women, this difference was not statistically significant after adjustment for multiple comparisons. Participants with NWO showed significantly higher body fat percentage, visceral fat index, hip circumference, and blood pressure compared with normal weight non-obese individuals after Holm–Bonferroni correction. Skeletal muscle mass was lower in the NWO group, although this difference did not remain statistically significant after adjustment. Multivariate logistic regression identified right-hand grip strength as an independent protective factor against NWO.
Methods for improved bileaflet aortic valve detection prior to transcatheter aortic valve replacement
Tretter, Justin T. , Eleid, Mackram F., Bedogni, Francesco, Rodés-Cabau, Josep, Regueiro, Ander, Testa, Luca, Ellenbogen, Kenneth A., Leon, M B, Ben-Haim, Shlomo, Eleid, Mackram F. , Bedogni, Francesco , Rodés‐Cabau, Josep , Regueiro, Ander , Testa, Luca , Chen, Shmuel , Galhardo, Attílio , Ellenbogen, Kenneth A , Leon, Martin B.

Mayo Clinic

Frontiers in Cardiovascular Medicine | February 23, 2026 | Volume: 13 | Issue: No issue available | Pages: No page available

10.3389/fcvm.2026.1755835 | PMID 41808748 Get It

Background Bileaflet aortic valve prevalence in transcatheter aortic valve replacement (TAVR) patients is poorly defined. We evaluated a TAVR cohort to determine the bileaflet aortic valve prevalence and understand features which may improve detection. In addition, we related valvar morphology to the occurrence of permanent pacemaker implantation (PPI) following TAVR. Methods Aortic valvar morphology diagnosis was recorded from the pre-procedural cardiac CTA reports prior to TAVR. Commissural angles, comparison of commissural heights, and dynamic visual inspection of the aortic valve were subsequently evaluated on pre-procedural cardiac CTA by an expert cardiac anatomist and imager, methods previously validated in a surgical cohort, to determine aortic valvar morphology and compared to the historical diagnosis. Relationships between valvar morphological characteristics with the need for PPM within 30-days post-TAVR were determined. Results Four-hundred and thirty-three (mean age 81.3 ± 6.6 years, 53.8% female) underwent TAVR [corrected diagnosis: 393 (90.8%) trileaflet vs. 40 (9.2%) bileaflet valves]. Bileaflet valves were historically misdiagnosed in 80% of pre-procedural cardiac CTA reports. Thirty-four (85.0%) had intercoronary leaflet fusion [mean commissural angle = 148.1 (18.3) degrees]. A commissural angle threshold of 141.1 degrees had a sensitivity of 0.73 and specificity of 0.86 for identifying a bileaflet valve. PPI post-TAVR occurred in 38% bileaflet vs. 19% trileaflet patients ( p = 0.0114 ) [unadjusted OR for bileaflet valve requiring PPI = 2.54, 95% CI (1.25–5.01)]. Conclusions Bileaflet aortic valves are commonly misdiagnosed. Assessment of the commissural angle and comparison of commissural heights may improve CTA-based diagnostic accuracy prior to TAVR. Improved detection may guide improved outcomes in this higher risk population.
Abstract PS2-07-27: Qutils: open-source image-based infiltrating immune cell detection and outcomes in calgb 40502, calgb 40603, and calgb 40601 phase iii breast cancer clinical trials
Vater, Mark, Salgado, Roberto , Blige, E., LeFebvre, Heather, Strahan, Ava , Rugo, H. S., Ballman, K., Watson, M., Wen, Y., Leon-Ferre, R., Niazi, Kayvan , Symmans, W. F., Carey, L. A., Li, Z., Stover, D. G., Gatti-Mays, Margaret Elena , Rugo, H. S., Ballman, K., Watson, M. A., Leon‐Ferre, Roberto A. , Niazi, K., Symmans, W. Fraser , AbdulJabbar, Khalid , Li, Zihai

Mayo Clinic

Clinical Cancer Research | February 20, 2026 | Volume: 32 | Issue: 4_Supplement | Pages: PS2-07-27-PS2-07-27

10.1158/1557-3265.sabcs25-ps2-07-27 Get It

Abstract Background: Stromal tumor infiltrating lymphocytes (sTILs) are associated with improved response to chemotherapy and better overall survival (OS) in triple-negative breast cancer (TNBC). Quantification of sTILs via hematoxylin and eosin (H&E) tumor slides offers a widely available method to define a simple, effective surrogate for host anti-tumor immunity. Digitization of H&E slides has rapidly gained acceptance for use in diagnostic pathology and research, opening the door for image-based computational approaches to enumerate sTILs, among other features. Methods: We describe QuTILs - a multilayer perceptron-based framework to detect/enumerate TILs trained on &gt;700,000 cells via The Cancer Genome Atlas Program (TCGA) slide images, implemented in the widely used open-source QuPath digital pathology suite. QuTILs was applied to digital H&E images using standard computing in primary breast tumors from phase 3 breast cancer clinical trials - CALGB 40502 (testing), CALGB 40601 and 40603 (validation) - in total 1,729 total images from 962 unique patients. The aims of this investigation were: 1) to assess the relationship between TIL patterns with overall or event-free survival outcomes; 2) to benchmark diverse image-based characteristics of TIL abundance and spatial architecture; and 3) to evaluate the association between image-based TIL levels and RNA-seq-based immune deconvolution metrics (CIBERSORT, EPIC, quanTIseq). Results: QuTILs average processing time was 7.9 minutes for whole-slide total TIL count and area density on a standard laptop workstation. In CALGB 40502, there was positive but modest correlation between pathologist TILs and QuTILs total TILs %, higher in the TNBC subgroup of CALGB 40502 (Pearson r = 0.55). In Cox proportional hazards models, the CALGB 40502 TNBC cohort showed significant univariate association for total TILs % with increasing decile (higher total TIL%) associated with reduced hazard (hazard ratio [HR]: 0.712, 95% CI: 0.559-0.906; P = 0.006), which remained significant in multivariable model incorporating age, race, and treatment arm (HR: 0.713, 95% CI: 0.556-0.915; P = 0.008). In validation TNBC clinical trial CALGB 40603, marginal TILs % was significant in the univariable Cox model (HR: 0.786, 95% CI: 0.639-0.966). Evaluation of TILs % by QuTILs with RNAseq-based deconvolution metrics in cohort-stratified and deconvolution method-stratified multivariable models showed that decile total TILs % by QuTILs was shown to significantly predict outcome in the EPIC (HR: 0.668, 95% CI: 0.466-0.957) and quanTIseq (HR: 0.646, 95% CI: 0.446-0.936) sets, with a similar magnitude as in clinical Cox, suggesting that RNA-based deconvolution estimates may not supplement the prognostic power of image-based TIL estimates. Exploratory analyses of pre- versus post-neoadjuvant therapy H&E images in CALGB 40603 and CALGB 40601 revealed a significant decrease in QuTILs total TIL% in CALGB 40603 for all pairs (n = 118 pairs, pre-median=9.52%, post-median=6.33%; Wilcoxon signed rank P &lt; 0.001) but no significant change in QuTILs total TIL% among all pairs in CALGB 40601 (n = 82 pairs, pre-median=15.92%, post-median=15.10%; P = 0.886). Conclusions: QuTILs provides a computationally efficient open-source workflow for sTIL identification from digital H&E images that can be deployed on a standard laptop. We present the first evaluation of digital sTIL enumeration in CALGB 40502, CALGB 40603, and CALGB 40601 phase III breast cancer clinical trials and demonstrate significant prognostic association with QuTIL total TIL % among TNBCs across studies. Citation Format: M. Vater, R. Salgado, E. Blige, H. Lefebvre, A. Strahan, M. Gatti-Mays, H. Rugo, K. Ballman, M. Watson, Y. Wen, R. Leon-Ferre, K. Niazi, W. Symmans, L. Carey, K. AbdulJabbar, Z. Li, D. Stover. Qutils: open-source image-based infiltrating immune cell detection and outcomes in calgb 40502, calgb 40603, and calgb 40601 phase iii breast cancer clinical trials [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 PS2-07-27.
Abstract PS5-01-16: Phase II Trial of the FASN Inhibitor, Denifanstat (TVB-2640), Plus Trastuzumab in Combination with Paclitaxel or Endocrine Therapy (ET) in Patients with HER2+ Metastatic Breast Cancer (MBC) Resistant to Trastuzumab
Haddad, T. C., Suman, V. J., Roa, R. R., Ernst, B. J., Lupu, Ruth , Steen, Travis Vander, Solanki, M. H., Keeney, Matthew E., Northfelt, D. W., Anderson, K. S., Hobday, T. J., Chumsri, S., Hoppenworth, J. E., Carroll, J. L., Giridhar, K. V., O’Sullivan, C. C., Leon-Ferre, R. A., Goetz, M. P., Haddad, T. C., Northfelt, Donald W. , Hobday, Timothy J. , Hoppenworth, Jenna, Giridhar, K. V., O’Sullivan, C. C., Leon‐Ferre, Roberto A.

Mayo Clinic

Clinical Cancer Research | February 17, 2026 | Volume: 32 | Issue: 4_Supplement | Pages: PS5-01-16-PS5-01-16

10.1158/1557-3265.sabcs25-ps5-01-16 Get It

Abstract Background: Fatty Acid Synthase (FASN) is a key lipogenic enzyme co-regulated with HER2 and highly expressed in ER+ and HER2+ BC. Its targeting downregulates HER2 expression. Our preclinical studies revealed that FASN inhibition can sensitize or restore sensitivity to trastuzumab, paclitaxel and ET in HER2+ BC models. Denifanstat (deni, formerly TVB-2640) is a novel FASN inhibitor that demonstrated promising clinical activity and safety in a prior phase I trial as either monotherapy or in combination with paclitaxel. The primary objective of this study was to evaluate the objective tumor response rate (ORR) of deni plus trastuzumab (H) in combination with paclitaxel (T) or ET. Methods: Two independent, phase II clinical trials were initiated to assess the efficacy and safety of deni plus H in combination with T (Cohort A) or ET (Cohort B). Key inclusion criteria included HER2+ MBC resistant to HER2-directed therapy, measurable disease, unlimited ET, ≤6 prior chemotherapy or antibody drug conjugate regimens, and confirmation of HER2+ MBC on a pre-registration biopsy. Deni was administered 100 mg/m2 orally once daily. HP or H plus ET (fulvestrant or aromatase inhibitor) was administered at standard dose and schedule. Blood was collected on Cycle 1 Day 1 (C1D1), C1D8 and C2D1 for serum FASN analysis. An additional MBC tumor biopsy was collected on C2D1 for correlative studies. A 2-stage Simon design with a safety-run in was used to test the null hypothesis that the true ORR is at most 5% against the alternative it is at least 20%. With a sample size of 32 patients (pts) per cohort, if ≥4 responses are seen, this design has a 90% chance of rejecting the true ORR is &lt;5% when the true ORR is ≥20% at a 0.10 level of significance. The decision to close both trials to enrollment early was multifactorial. Results: From August 2017 - February 2024, 33 pts with HER2+ MBC pre-registered, among which 17 were eligible and 16 were evaluable (15 pts in Cohort A and 1 pt in Cohort B). The most common reason for ineligibility was HER2-negative status on central review of the pre-registration biopsy. Median age was 57 years (range 35-80). All pts were non-Hispanic and 13 (81.3%) were White. Median prior lines of therapy was 5 (range 0 - 11). In Cohort A, there were 5 partial responses; thus, the primary endpoint was met with the ORR estimated to be 33.3% (90% CI: 14.2-57.7%). The median PFS time was 7.0 months (95 %CI: 3.7 - 11.3), and median OS was 25.7 months (95%CI: 10.2 - NE). No dose limiting toxicities were observed during the C1 safety run-in (6 pts). In Cohort A, 7 (46.7%) developed a grade 3 or 4 adverse event (AE) attributed to combination therapy. Grade ≥2 AEs regardless of attribution occurring in ≥20% of all pts included anemia, fatigue, neutropenia, palmar plantar erythrodysesthesia (PPE), and peripheral neuropathy. Treatment was discontinued due to progression (12; 80%) or AE (3; 20% - pneumonitis; neuropathy; PPE). In Cohort B, the pt maintained stable disease through 8 cycles with grade 3 ALT increase, and she remained alive 31.2 months post-registration. Median C1D1 FASN level was 32.7 ng/mL (IQR: 18.7 - 49.6 ng/mL). There was minimal association between C1D8 and C2D1 FASN levels and time to disease progression (C1D8 n=9, Spearman rank correlation coefficient (r s) = 0.040; C2D1 n=13, r s = -0.019). Analyses of changes in MBC tumor expression of FASN, phospho-AKT, and phospho-S6 are in progress. Conclusion: Deni combined with HP provided clinical antitumor activity in pts with HER2+ MBC resistant to trastuzumab. Expected paclitaxel-associated AEs were observed. Nearly half of pts experienced a grade 3 or 4 AE attributed to the combination therapy, and 20% stopped treatment due to AE. Further study of deni, H plus ET is necessary to draw safety and efficacy conclusions. Citation Format: T. C. Haddad, V. J. Suman, R. R. Roa, B. J. Ernst, R. Lupu, T. Vander Steen, M. H. Solanki, M. Keeney, D. W. Northfelt, K. S. Anderson, T. J. Hobday, S. Chumsri, J. E. Hoppenworth, J. L. Carroll, K. V. Giridhar, C. C. O’Sullivan, R. A. Leon-Ferre, M. P. Goetz. Phase II Trial of the FASN Inhibitor, Denifanstat (TVB-2640), Plus Trastuzumab in Combination with Paclitaxel or Endocrine Therapy (ET) in Patients with HER2+ Metastatic Breast Cancer (MBC) Resistant to Trastuzumab [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 PS5-01-16.
Abstract PS5-07-20: Trial in progress: Phase 1 Study Targeting DNA Methyltransferases in Metastatic Triple-Negative Breast Cancer (NCI Protocol #10546)
Leon-Ferre, R. A., Zahrieh, D. M., Advani, P. P., Giridhar, K. V., Dizona, P. J., Stover, D. G., Wang, X. , Tevaarwerk, A. J., Choong, G. M., Yasir, S., Kalari, K. R., Foldi, Julia , Parajuli, R., Hackney, Mary Helen , Chew, H. K., Wajeeha, R., Bear, H., Sharon, E., Ko, B., Shapiro, G. I., Gore, S., Pelosof, Lorraine, Wang, L., Goetz, M. P., Leon‐Ferre, Roberto A. , Zahrieh, David , Advani, P. P., Quiroga, Dionisia , Tevaarwerk, Amye J., Kalari, Krishna R. , Razaq, Wajeeha, Gore, Steven D. , Goetz, Matthew P.

Mayo Clinic

Clinical Cancer Research | February 17, 2026 | Volume: 32 | Issue: 4_Supplement | Pages: PS5-07-20-PS5-07-20

10.1158/1557-3265.sabcs25-ps5-07-20 Get It

Abstract Background: DNA methyltransferase (DNMT) isoforms 1, 3A and 3B are enzymes that regulate DNA methylation, controlling gene expression, chromatin stability and genetic imprinting. We have previously shown that DNMT3A protein expression in early triple negative breast cancer (TNBC) is associated with more aggressive clinicopathologic features (higher tumor grade, tumor proliferation and frequency of nodal metastases) and worse clinical outcomes in the absence of chemotherapy (Leon-Ferre et al, SABCS 2024). Pre-clinically, we have shown that DNMT3A protein expression predicts sensitivity to DNMT inhibitors (Yu J et al., J Clin Invest 2018), and that DNMT inhibitor treatment leads to downregulation of DNMT3A, enhanced expression of immune-related pathways, and halted tumor growth, particularly in combination with immunotherapy and paclitaxel. Methods: This is a phase 1, open-label, multicenter study evaluating the safety and recommended phase 2 dose (RP2D) of the oral DNMT inhibitor ASTX727 + paclitaxel + pembrolizumab in metastatic TNBC. ASTX727 is an oral fixed dose combination (FDC) tablet of 35 mg decitabine (active agent) and 100 mg cedazuridine (a cytidine deaminase inhibitor that prevents decitabine degradation in the bowel and liver, allowing oral delivery). The study consists of two parts: Part 1 is a dose-finding cohort, using a 3+3 design, with 5 dose levels (Table), and its primary objective is to determine the RP2D. Part 2 is an expansion cohort (n=6), with the primary objective to confirm tolerability of the regimen at the RP2D. Secondary objectives are to record the antitumor activity of the regimen, describe the AE profile, explore the association of baseline gene expression profiles with clinical benefit, and to evaluate impact of treatment on tumor and ctDNA methylation. Exploratory objectives will evaluate the association of baseline DNMT3A protein expression and antitumor activity, and the impact of treatment on the tumor and peripheral blood immune phenotype. Eligible patients are adults 18 years or older with metastatic TNBC (ER/PR ≤10%, and HER2-negative per ASCO/CAP guidelines), independent of PD-L1 expression. Patients are allowed to have received 0-3 prior lines of systemic therapy in the metastatic setting, including prior immune checkpoint inhibitors in the early and/or metastatic settings. Patients must be eligible for taxanes and have adequate organ and bone marrow function. Patients with treated brain metastases are eligible if previously treated without evidence of progression after 4 weeks. Leptomeningeal carcinomatosis is not allowed. Patients must have an ECOG performance status of ≤2 and have no gastrointestinal disorders impacting absorption of oral medications. As of June 20, 2025, the study is enrolling patients, with 10 patients dosed in the dose-finding phase. Citation Format: R. Leon-Ferre, D. M. Zahrieh, P. P. Advani, D. Quiroga, K. V. Giridhar, P. J. Dizona, D. Stover, X. Wang, A. J. Tevaarwerk, G. M. Choong, S. Yasir, K. R. Kalari, J. Foldi, R. Parajuli, M. H. Hackney, H. K. Chew, R. Wajeeha, H. Bear, E. Sharon, B. Ko, G. I. Shapiro, S. Gore, L. Pelosof, L. Wang, M. P. Goetz. Trial in progress: Phase 1 Study Targeting DNA Methyltransferases in Metastatic Triple-Negative Breast Cancer (NCI Protocol #10546) [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 PS5-07-20.