Citations

Mayo Clinic

Clear

901 citation(s) found for "Ly, Jane".

Elective genomic sequencing for adults in research, clinical and commercial contexts
Linderman, Michael D. , Adelson, Sophia , Berro, Tala , Crawford, Scott , Cunningham, Tshaka J., Esplin, Edward D. , Ewing-Crawford, Altovise T, Nielsen, Daiva E. , Andrighetti, Heather, Bleyl, Steven B., Haverfield, Eden , Hegde, Madhuri , Konstantinos, Lazaridis N, Leonard, Debra G. B. , May, Thomas , McGinniss, Molly, Pandya, Vaibhav, Schadt, Eric E. , Zettler, Bethany , Team, PeopleSeq Study, Adelson, Sophia M , Berro, Tala M , Crawford, Scott D , Esplin, Edward D , Nielsen, Daiva E , Pereira, Stacey , Schmidlen, Tara , Haverfield, Eden V , Hegde, Madhuri , Kruszka, Paul , Leonard, Debra , May, Thomas , Schadt, Eric E , Tzovaras, Bastian Greshake , Zettler, Bethany , McGuire, Amy L , Green, Robert C. , Berro, Tala M., Anderson, Jennifer L., Cunningham, Tshaka, Ewing, Altovise T. , Nielsen, Daiva E., Church, George M. , Konstantinos, Lazaridis N., McGinniss, Molly A. , Schadt, Eric E., Green, Robert C., Juusola, Jane , McWalter, Kirsty , Esplin, Ed, Haverfield, Eden, Hazell, Allison, Gu, Jessica, Hogan, Jennifer, Church, George , Ball, Mad Price , McGinnis, Molly, Schadt, Eric, Linderman, Michael, McGuire, Amy, Christensen, Kurt D. , Caskey, Thomas, Zoltick, Emilie S. , Crawford, Scott, Young, Robert, Hunsanger, Jillian, Bradley, Sophia, Cunningham, Tshaka, Roberts, Scott, Ricks‐Santi, Luisel , Lillard, James, Washington, Kareem N., Johnson, Anthony

No container title available | June 19, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.64898/2026.06.09.26355296 | PMID 42369514 Get It

Abstract Purpose Elective genomic sequencing (EGS) returns monogenic disease findings in multiple genes, including potentially novel variants, and may also provide participants with carrier status, pharmacogenomic and other health-related information. The PeopleSeq Study assessed participants’ motivations for and concerns about EGS and the associated clinical and psychosocial outcomes across diverse EGS providers. Methods We administered a shared questionnaire to participants who chose to undergo EGS via 18 academic, clinical, or commercial EGS platforms. Results We enrolled 1575 participants, of whom 1147 (72.8%) completed a questionnaire after receiving their EGS results. A majority (60.3%) of the participants who completed a post-result questionnaire self-reported receiving results they assessed as important, including negative findings, and 75.9% reported a form of health-related utility. Among a subset (19.4%) who shared their EGS reports, 16.6% (37 of n =223) received a monogenic finding and self-reported results deemed “important” were consistent with EGS reports. Most participants (74.1%) discussed their results with their family, but fewer discussed their results with a healthcare provider other than the site team (41.7%) or had one or more medical visits as a direct result of their EGS testing (23.1%). Participants expressed diverse motivations for EGS, with 91.4% expressing interest in their personal disease risk and 54% who expressed quasi-indication-based motivations related to family medical history. Individuals motivated by family history reported important results at a significantly higher rate. Conclusions Early adopters of EGS are motivated by general interest in their health as well as quasi-indication-based considerations such as family history. A majority of participants learned results they considered medically important, but a much smaller segment engaged healthcare providers with their results.
Clinicopathologic Features and Long-Term Outcomes of Adult Hypopigmented Mycosis Fungoides
Park, Jong Bin, Liao, Viviane , Pürnak, Seda , Huen, Auris, Iyer, Swaminathan P., Pierog, Olivia , Leibovit‐Reiben, Zachary , Mangold, Aaron R., Scribner, Jane, Talluru, Sai , Stockard, A R, Vroman, Jenna , Weiner, Jeffrey, Allen, Pamela B., Rozati, Sima, Leibovit-Reiben, Zachary , Stockard, Alyssa L, Park, Jong Bin, Geller, Shamir , Huen, Auris , Mangold, Aaron R. , Rozati, Sima

JAMA Dermatology | June 17, 2026 | Volume: 162 | Issue: 8 | Pages: 780

10.1001/jamadermatol.2026.1793 | PMID 42307910 Get It

Importance Hypopigmented mycosis fungoides (HMF) is uncommon in adults, and data on clinicopathologic features and long-term outcomes remain sparse. Objective To investigate the clinicopathologic features and outcomes of adults with HMF in a large multicenter cohort. Design, Setting, and Participants This retrospective multicenter cohort study conducted from January 2011 to October 2023 at 6 US tertiary referral centers and included adults (18 years or older at diagnosis) with biopsy-confirmed HMF and hypopigmentation documented at diagnosis, with a median (range) follow-up of 39 (1-347) months. Data were analyzed from February to December 2025. Exposures Clinical variant, immunophenotype predominance, and polymerase chain reaction–based T-cell receptor ( TCR ) gene rearrangement in peripheral blood and/or skin. Main Outcomes and Measures Best overall response, defined as complete response, partial response, stable disease, or progressive disease, and progression to a higher stage. Results The cohort included 224 adults with HMF (median [range] age, 44 [18-74] years), of whom 164 (73%) were women (60 men [27%]), 5 (2%) were Asian individuals, 1 (0.4%) was a Hispanic/Latino individual, 1 (0.4%) was a Middle Eastern individual, 19 (8%) were White individuals, and 186 (83%) were Black individuals; 219 (98%) presented with early-stage disease. Most had hypopigmented lesions only (159 [71%]), whereas 65 (29%) exhibited mixed-variant mycosis fungoides; outcomes were similar between groups. Among 141 patients with available immunophenotyping, 88 (63%) had CD8-positive predominance. Among 207 treated patients, most (179 [90%]) received skin-directed therapy alone. Among 198 evaluable patients, the best overall response was complete response for 52 (26%), partial response for 101 (51%), stable disease for 34 (17%), and progressive disease for 11 (6%). Over a median (range) follow-up of 39 (1-347) months, 14 of 224 patients (6%) experienced progression to a higher stage, including 5 of 219 patients (2%) with early-stage disease at baseline who experienced progression to advanced-stage disease. Peripheral blood TCR monoclonality was detected in 23 of 85 tested patients (27%) and was associated with poorer treatment response but not with disease progression. Conclusions and Relevance The finding of this cohort study suggest that adult HMF demonstrated a generally indolent course, with favorable response to skin-directed therapy, irrespective of immunophenotype or mixed-variant presentation. Peripheral blood TCR monoclonality was associated with lower treatment response but not disease progression.
Resolving Diagnostic Discordance in Group 2 Pulmonary Hypertension Through Staged Physiologic Testing: Insights From PVDOMICS
Rischard, Franz , Mendoza, Mateo, Insel, M, Beck, Gerald J. , Erzurum, Serpil C. , Frantz, Robert P. , Finet, J. Emanuel , Hassoun, Paul M. , Hemnes, Anna R. , Hill, Nicholas S. , Group, the PVDOMICS Study, Rischard, Franz P , Horn, Evelyn M , Leopold, Jane A , Mathai, Stephen C , Mehra, Reena , Nishimura, Rick , Rosenzweig, Erika B , Systrom, David M , Tang, W H Wilson , Waxman, Aaron B. , Borlaug, Barry A , Frantz, Robert P , Hemnes, Anna , Hassoun, Paul M , Beck, Gerald J , Finet, J Emanuel , Mendoza, Mateo, Insel, Michael , Horn, Evelyn M. , Leopold, Jane A. , Mathai, Stephen C. , Mehra, Reena , Reddy, Yogesh N.V. , Rosenzweig, Erika B. , Tang, W.H. Wilson , Borlaug, Barry A. , Group, The PVDOMICS Study

No container title available | June 11, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.64898/2026.06.04.26354961 | PMID 42326784 Get It

Abstract Background World Symposium on Pulmonary Hypertension (WSPH) Group 2 pulmonary hypertension (PH) is a clinically integrated phenotype attributed to left heart disease, whereas pre- versus post-capillary classification is operationalized primarily by pulmonary capillary wedge pressure (PCWP). Although current recommendations emphasize contextual interpretation and provocative testing for intermediate PCWP values, the relationship between PCWP-based classification and underlying phenotype has not been systematically evaluated. We aim to quantify phenotype–hemodynamic discordance across the PCWP spectrum and evaluate a staged physiology-guided framework incorporating inhaled nitric oxide (iNO), ventricular geometry, and provocative testing. Methods We studied 1,032 participants from the NHLBI-sponsored PVDOMICS cohort with multidisciplinary adjudicated phenotypes integrating clinical, imaging, physiologic, and hemodynamic data. Stage-specific PCWP thresholds classified pre- versus post-capillary physiology at rest, during iNO, and during provocation (fluid challenge or invasive cardiopulmonary exercise testing [iCPET]). Echocardiographic right ventricular-to-left ventricular (RV/LV) ratio was evaluated as a marker of ventricular interdependence. Restricted cubic spline and staged concordance analyses defined certainty-based PCWP ranges and incremental diagnostic yield. Results Adjudicated Group 2 PH was present in 37.0% of participants. Resting PCWP demonstrated good discrimination (AUC 0.86), but substantial bidirectional phenotype–hemodynamic discordance persisted across intermediate PCWP ranges. At a resting PCWP of 12 mmHg, 25% of participants classified as pre-capillary had adjudicated Group 2 PH, whereas at 18 mmHg, 35% classified as post-capillary remained discordant non–Group 2. Concordance did not approach 90% until PCWP values were <9 mmHg or >24 mmHg. Dynamic testing incrementally improved concordance within these overlap zones. Nearly half of adjudicated Group 2 PH participants (46.5%) were not identified by resting PCWP alone; incorporation of iNO and provocative testing increased cumulative Group 2 identification by 63.4% and improved sensitivity from 79.9% to 83.7%. Model discrimination improved from an AUC of 0.863 to 0.908 (likelihood-ratio P<0.001). iNO increased PCWP in discordant Pre/G2 participants, unmasking latent left-sided limitation, while lowering PCWP in discordant Post/NonG2 participants, consistent with ventricular interdependence. RV/LV ratio ≥0.94 reduced discordant Post/NonG2 classification by 70.5%, and incorporation of PCWP/cardiac output slope improved physiologic specificity during exercise. Conclusions Group 2 PH is a dynamic, load-dependent phenotype inadequately characterized by resting PCWP alone. Intermediate PCWP values represent continuous probabilities of bidirectional discordance rather than discrete diagnostic states. A staged physiology-guided approach integrating iNO, ventricular geometry, and provocative testing improves concordance between hemodynamic classification and clinically integrated phenotype assignment. Clinical Perspective What Is New? In the deeply phenotyped PVDOMICS cohort, resting pulmonary capillary wedge pressure demonstrated good overall discrimination for adjudicated Group 2 (left heart disease) pulmonary hypertension, yet intermediate values frequently either concealed latent left-heart disease or overclassified patients without intrinsic left-heart disease Resting pulmonary capillary wedge pressure should be viewed as a continuous probability signal rather than a binary threshold, allowing additional physiologic testing to be targeted according to the degree of diagnostic uncertainty a clinician is willing to accept. A staged physiology-guided approach incorporating inhaled nitric oxide, ventricular geometry, and provocative testing improved concordance with adjudicated PH category and pre or post-capillary classification. What Are the Clinical Implications? Pre- versus post-capillary classification should be interpreted within the broader clinical and physiologic context rather than relying on a single resting pulmonary capillary wedge pressure threshold. Intermediate pulmonary capillary wedge pressure values should prompt consideration of additional physiologic evaluation, with inhaled nitric oxide providing a practical intermediate step and provocative testing providing the greatest incremental diagnostic yield. Exercise pulmonary capillary wedge pressure/cardiac output slope and markers of ventricular interdependence may provide complementary information for resolving uncertainty when resting and dynamic hemodynamics are discordant.
Trends in Delays to Immunotherapy in Patients with Autoimmune Encephalitis (P9-1.010)
Levinsky, Justin, Sladoje, Lana, Lim-Fat, Mary Jane, Muccilli, Alexandra, Day, Gregory, Lapointe, Sarah, Climans, Seth, Wennberg, Richard, Tang-Wai, David, Hébert, Julien , Levinsky, Justin T. , Lim-Fat, Mary Jane, Muccilli, Alexandra, Day, Gregory S. , Lapointe, Sarah, Climans, Seth , Wennberg, Richard , Tang‐Wai, David F.

Neurology | June 10, 2026 | Volume: 106 | Issue: 11_Supplement_1 | Pages: No page available

10.1212/wnl.0000000000215787 Get It

BRAF-altered glioma in adults and children: A Society for Neuro-Oncology (SNO) and European Society for Neuro-Oncology (EANO) consensus review on clinical management and future directions
Schreck, Karisa C, Fuente, Macarena I de la, Fat, Mary Jane Lim, Maas, S L, Levy, Jean M Mulcahy, Lombardi, G , Perrault, Sébastien, Petritsch, Claudia , Aldape, Kenneth, Chang, Susan M, Holdhoff, Matthias, Kazda, Tomas, Rhun, Emilie Le, Minniti, Giuseppe, Mueller, Sabine, Preusser, M, Smits, Marion, Weller, Michael, Wen, Patrick Y, Bent, Martin van den, Geurts, Marjolein, Lombardi, Giuseppe , Maas, Sybren L. N. , Schreck, Karisa C. , Levy, Jean M. Mulcahy , Chang, Susan M. , Duerinck, Johnny , Holdhoff, Matthias , Kazda, Tomáš , Rhun, Émilie Le , Minniti, Giuseppe , Mishra, Mark V. , Mueller, Sabine , Padovan, Marta , Preusser, Matthias , Smits, Marion , Weller, Michael , Bent, Martin J. van den , Geurts, Marjolein

Neuro-Oncology | June 5, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1093/neuonc/noag135 | PMID 42261252 Get It

Abstract Oncogenic BRAF alterations occur in a subset of diffuse gliomas across WHO grades and are increasingly identified through modern molecular diagnostics. In addition to standard glioma therapies, targeted treatments are available for patients with BRAF-altered glioma supported by variable evidence spanning randomized trials, single-arm studies, and real-world evidence. This joint consensus review from the Society for Neuro-Oncology (SNO) and the European Association of Neuro-Oncology (EANO) synthesizes current knowledge on the diagnosis and management of BRAF-altered gliomas across age groups, tumor grades, and lines of therapy. Particular emphasis is placed on expert consensus in clinical scenarios where high-quality trial evidence remains limited. The review addresses rationale testing for BRAF alterations, selection, and monitoring of targeted therapies, management of treatment-related toxicities, approaches to resistance, and priorities for future research. It aims to provide practical, evidence-based guidance for clinicians while highlighting gaps to inform prospective studies.
Identification of Patients for a Community Health Worker Program Using an Artificial Intelligence Algorithm
Savitz, Samuel , Broderick, Brendan, Paul, Margaret M. , Bonner, Timethia , Käll, Mikaela, Njeru, Jane W. , Savitz, Samuel T. , Bonner, Timethia J , Paul, Margaret M , Broderick, Brendan T., Ridgeway, Jennifer L.

Learning Health Systems | May 28, 2026 | Volume: 10 | Issue: S1 | Pages: No page available

10.1002/lrh2.70089 | PMID 42253465 Get It

ABSTRACT Introduction Community health workers (CHWs) help patients navigate community resources. CHW programs can improve health outcomes and reduce healthcare utilization, but identifying eligible patients is challenging. We developed an electronic health record (EHR)‐based algorithm trained to predict referrals to a CHW program. Our objective was to evaluate whether an algorithm trained on historical referrals identifies a subgroup of patients that differs from the subgroup identified through questionnaire‐based health‐related social needs (HRSN) screening alone. Methods This analysis used data from Mayo Clinic primary care patients in Southeast Minnesota. We developed a gradient boosted time‐to‐event model that incorporated demographics, diagnoses, HRSN questionnaire responses, and HRSNs derived from clinical notes using natural language processing. We compared the characteristics of algorithm‐identified patients with those identified through questionnaires and assessed the variable importance of model features. Results The algorithm had AUC: 0.87 in the training and 0.92 in the hold out set. Patients flagged by the algorithm tended to use interpreter services more commonly (12.6% vs. 1.3%), have a non‐English preferred language (14.1% vs. 2.3%), and have more instances of health literacy documented (5.36 vs. 1.29) compared to patients identified by the HRSN questionnaire. Only 47.0% of patients flagged by the algorithm had responded to the HRSN questionnaire within 2 years. Variable importance was highest for health literacy and financial strain from unstructured notes. Conclusions The algorithm is a chart‐review prioritization tool for referral to the CHW program for patients that may overcome challenges to identifying patients with HRSNs, especially when questionnaire data is incomplete.
A propensity score-matched analysis comparing first-line regional, systemic, and intralesional treatments for melanoma in-transit metastases in a contemporary patient population.
Balsay-Patel, Caitlyn , Dugan, Michelle, Naqvi, Syeda Mahrukh Hussnain , Ollila, D. W., Houdt, Winan J. van, Asher, Nethanel, Snow, Hayden, Farma, Jeffrey M., Vetto, John T. , Saw, Robyn P.M., LO, S, Long, Georgina V., Ny, Lars, Akkooi, Alexander Christopher Jonathan Van, Bagge, Roger Olofsson, Zager, Jonathan S., Long, Georgina V. , Akkooi, Alexander C. J. van , Saw, Robyn P.M. , Lo, Serigne , Long, Georgina V , Lo, Serigne N , Dugan, Michelle M. , Hieken, Tina J. , Houdt, Winan J. van , Asher, Nethanel , Broman, Kristy K. , Farma, Jeffrey M. , Hui, Jane Yuet Ching , Ny, Lars , Kim, Youngchul , Bagge, Roger Olofsson , Zager, Jonathan S.

Journal of Clinical Oncology | May 28, 2026 | Volume: 44 | Issue: 16_suppl | Pages: 9524-9524

10.1200/jco.2026.44.16_suppl.9524 Get It

9524 Background: Unresectable melanoma in-transit metastases (ITM) can pose a significant clinical challenge. Our recently published data comparing first-line treatments for ITM, isolated limb infusion or perfusion (ILI/ILP), immune checkpoint inhibitors (ICI) and intralesional talimogene laherparepvec (TVEC), found superior outcomes with TVEC. However, TVEC was used more often in patients with lower disease burden and earlier stage (IIIB vs. IIIC/D). Therefore, we sought to better investigate these differences with a propensity score-matched (PSM) analysis. Methods: A multi-institutional, international IRB- approved retrospective analysis was conducted for unresectable melanoma ITM from 2016-2022. PSM analysis comparing first-line ILI/ILP, ICI, and TVEC for was performed. Patients were matched for stage, number of ITM, anatomical site, CLND status, gender and age. Kaplan-Meier curves (OS, PFS, DMFS) and Cumulative incidence function (MSS) were used to visualize time-to-event outcomes in the PSM cohort, though both methods do not account for the matched structure. Results: 274 patients were identified, 120 female/154 male; 96 treated with ILI/ILP, 111 with ICI, and 67 with TVEC. Median follow-up was 40 months (range, 1-80). PSM was performed and identified 36 TVEC–ICI pairs and 27 TVEC–ILI pairs. These were combined resulting in a final cohort of 108 observations (45 TVEC, 36 ICI and 27 ILI). The groups were well balanced. No statistical difference was found for metastasis-free survival (DMFS), progression-free survival (PFS), melanoma-specific survival (MSS), and overall survival (OS) between treatment modalities. TVEC was associated with significant improvement in local PFS (median was 2.2 years (y) for ILI/ILP, 1.5y for ICI and not reached for TVEC, p=0.048). While not statistically significant, a clinical benefit was seen in PFS being longer for TVEC (2.1y for TVEC vs. 1.2y for ILI/ILP and 1.1y for ICI; p=0.2) and OS (not reached vs 2.9y for ILI/ILP and 5.2y for ICI; p=0.2). On mixed effect Cox regression proportional hazard model using the matched data set, there were no significant differences in any of the survival and recurrence outcomes. Conclusions: When patients are propensity-matched, there were no significant differences in first-line treatment modalities for unresectable melanoma ITM. Treatment with TVEC did result in clinically meaningful improved overall and local PFS and OS. This supports that selection of ITM therapy should incorporate an individualized approach, incorporating disease distribution, stage, burden, treatment side effects and patient priorities.
Secretion of the HBV small surface antigen is driven by an ER autophagic pathway
Cao, Hong, Krueger, Eugene, Chen, Jing, Yang, Huiling, Chia, Jia Jun , Beran, Rudolf K, Tam, Jane, Kornyeyev, Dmytro, Holdorf, Meghan , McNiven, Mark A., Krueger, Eugene W. , Chen, Jing, Beran, Rudolf K., Kornyeyev, Dmytro , McNiven, Mark A.

Hepatology Communications | May 22, 2026 | Volume: 10 | Issue: 6 | Pages: No page available

10.1097/hc9.0000000000000939 | PMID 42172500 Get It

Chronic hepatitis B (CHB), a major global public health burden, is characterized by the presence of high circulating levels of non-infectious subviral particles (SVPs). These SVPs are mainly composed of small hepatitis B surface antigen (SHBs) and are associated with a dysfunctional HBV-specific immune response. Previous studies exploring the cellular mechanisms and molecular pathways by which SVPs are secreted from hepatocytes have utilized either non-hepatic cells or whole-genome HBV-integrated hepatoma cell lines in which SHBs can also be secreted as a component of the virion envelope. In this study, we provide a detailed examination of SHBs trafficking using biochemical approaches coupled with high-resolution confocal microscopy and live-cell imaging via a novel fluorophore-tagged SHBs probe in both HepG2 and primary human hepatocytes stably expressing SHBs. Our results provide evidence that SHBs utilize a modified ER-Golgi secretory pathway with transit from the ER to the multivesicular body and lysosomal/late endosomal compartments. Importantly, we identified the autophagy adapters ATG5 and LC3B, and the ER-phagy protein atlastin 3 (ATL3), central to mediating SHBs secretion. These findings suggest that SHBs is trafficked through a non-canonical path for secretion and provides new potential therapeutic targets for the treatment of CHB.
D16-06 Metabolomic Profiling Differentiates PAH-like and ILD-like Phenotypes in Interstitial Lung Disease-related Pulmonary Hypertension
Khan, S L, Lammi, M R, Danoff, S K, Balasubramanian, A, Kolb, T M, Mukherjee, M, Finet, J, Grunig, G, Jellis, C L, Kwon, D, Mehra, R, Park, M M, Barnard, J, Comhair, S A, Hemnes, A R, Leopold, J A, Horn, E M, Rosenzweig, E Berman, Rischard, F P, Frantz, R P, Erzurum, S C, Tang, W, Beck, G J, Hill, N S, Hassoun, P M, Mathai, S C, Simpson, C, Group, The PVDOMICS Study, Mathai, Stephen C. , Mathai, Stephen C , Lammi, Matthew R. , Danoff, S.K., Balasubramanian, A, Kolb, T M, Finet, J. Emanuel , Grünig, Gabriele , Jellis, C.L., Kwon, D, Leopold, Jane A. , Rosenzweig, E.B., Rischard, Franz , Frantz, Robert P. , Hassoun, Paul M.

American Journal of Respiratory and Critical Care Medicine | May 18, 2026 | Volume: 212 | Issue: Supplement_1 | Pages: No page available

10.1093/ajrccm/aamag162.5877 Get It

Abstract Introduction Interstitial lung disease-associated pulmonary hypertension (ILD-PH) is a clinically challenging entity that lies on a pathophysiologic spectrum between pulmonary arterial hypertension (PAH) and interstitial lung disease (ILD). We compared the metabolomes of patients with ILD-PH to those with PAH and ILD to characterize the PAH-ILD axis and determine whether ILD-PH patients can be phenotyped based on their metabolomic similarity to PAH. Methods Using untargeted metabolomics profiles from patients with PAH, ILD, and ILD-PH in the large, U.S.-based, NIH-funded, multi-center PVDOMICS cohort, we trained an anchor-based classifier on PAH and ILD metabolomes using supervised PLS-DA with a 75/25 train/test split. Primary and secondary PH or risk-group classifications in PVDOMICS were based on expert adjudication of clinical data including right heart catheterization hemodynamics, pulmonary function testing, chest imaging, and laboratory results. We then applied the trained model to each ILD-PH patient to assign a PAH similarity score. We classified patients as having a PAH-like or ILD-like metabolomic phenotype using an optimal PAH similarity score cutoff of 0.5 then compared PAH metabolomic similarity to expert-adjudicated primary and secondary WSPH classifications in PVDOMICS. We implemented FELLA, a network-based metabolomics enrichment method, to holistically characterize the biologic underpinnings of PAH, ILD-PH, and ILD metabolomes. Results We analyzed 244 patients with PAH, 54 with ILD, and 47 with ILD-PH. The anchor-based classifier demonstrated high train-test performance with a c-statistic of 0.81 and 78% agreement with expert-adjudicated diagnoses. Among the ILD-PH patients, 23 were classified as PAH-like and 24 as ILD-like (74% agreement with expert adjudication, Cohen’s kappa 0.49, Hedge’s g estimate of 0.86). FELLA enrichment revealed core glycolytic and bioenergetic pathways were enriched in both pure PAH and ILD-PH. Comparison of diffusion Z-scores between groups demonstrated subtle but biologically coherent differences in several reaction-level nodes, including lactate, NADPH oxidoreductase, and phosphofructokinase, which were enriched in ILD-PH. Conclusion Patients with ILD-PH demonstrate clinically relevant metabolomic phenotypes. Examination of the network biology underlying ILD-PH may point to potential therapeutic targets in this vulnerable subgroup with lagging clinical outcomes. This abstract is funded by: Pulmonary Fibrosis Foundation PFF Scholars Program