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Importance Postoperative pain is commonly treated with opioids, which may contribute to unnecessary opioid-related harms. Scalable approaches to integrate recommended nonpharmacologic pain care could reduce opioid exposure while improving or at least preserving functional recovery outcomes. Objective To evaluate whether an electronic health record (EHR)–embedded intervention promoting nonpharmacologic pain care improves postoperative pain interference and physical function while reducing opioid exposure. Design, Setting, and Participants This cluster randomized clinical trial was conducted from October 16, 2020, through April 30, 2024. Participants included patients undergoing surgery at 22 surgical practices in 6 surgical centers in Minnesota, Wisconsin, Florida, and Arizona. Intervention A multicomponent EHR-based intervention including a patient-facing Healing After Surgery educational guide, clinical decision support, and nonpharmacologic pain care support materials integrated into routine perioperative touchpoints and workflows. Main Outcomes and Measures Co–primary outcomes were Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Interference and Physical Function T scores measured preoperatively and at 1, 2, and 3 months after surgery. Secondary outcomes included opioid prescribing and administration (morphine milligram equivalents [MMEs]), PROMIS Anxiety scores, and health care utilization for 3 months after surgery. Mixed-effects models were used to account for correlation of outcomes within surgery, patient, and cluster, as appropriate for each model. Results Among 68 141 included surgical procedures (40 892 male patients [60.0%]; mean [SD] age, 59.27 [16.26] years), 43 053 occurred during the intervention period, and 25 088 occurred during the usual care period. The intervention did not change PROMIS pain interference (adjusted mean difference, 0.09; 95% CI, −0.18 to 0.36; P = .51) or PROMIS physical function (adjusted mean difference, 0.15; 95% CI, −0.11 to 0.41; P = .27) in the intervention compared with control surgical procedures. However, total postoperative opioid exposure was lower during intervention periods (rate ratio, 0.90; 95% CI, 0.82 to 0.99; P = .03), corresponding to an approximately 10% relative reduction and an adjusted mean difference of approximately 260 MMEs per patient, with no changes in anxiety, adverse events, or health care utilization. This reduction was driven primarily by lower opioid administration during hospitalization (adjusted rate ratio, 0.94; 95% CI, 0.90 to 0.97; P = .001), with an adjusted mean difference of approximately 85 MMEs. Conclusions and Relevance In this cluster randomized clinical trial of patients undergoing surgery, an EHR-embedded perioperative pain management intervention promoting nonpharmacologic pain care reduced opioid exposure without changes in patient-reported outcomes, suggesting potential for scalable EHR-based strategies to support safer postoperative pain management. Trial Registration ClinicalTrials.gov Identifier: NCT04570371

Abstract The nuclear pore complex (NPC) and its building-block proteins, nucleoporins (NUP), play fundamental roles in maintaining cellular fitness by regulating nucleocytoplasmic transport, chromatin and transcriptional activity, and genome stability. These core biological processes are critical for cancer cells, and thus, tumor-driven co-option of NUP-regulated functions has emerged as an important mechanism contributing to the pathogenesis of multiple malignancies. This review discusses how NUP dysregulation mechanistically contributes to tumor initiation and progression and how these insights open opportunities for innovative anticancer therapies, including using clinical-grade molecular glues that induce selective NUP degradation and pharmacologically inhibiting NPC-regulated epigenomic/transcriptomic signaling and nucleocytoplasmic transport. Significance: Recent studies demonstrate that NUPs play fundamental roles in cancer pathogenesis by dysregulating key NPC functions and driving tumorigenesis and disease progression. NUPs and NPC-regulated mechanisms can be pharmacologically targeted, providing a strong rationale for developing much-needed innovative therapeutic strategies to combat cancer.

Large B-cell lymphoma with IRF4 rearrangement (LBCL-IRF4) predominantly affects children and young adults (CAYA) and presents as localized disease with excellent prognosis. Although most tumors harbor IRF4 rearrangements (IRF4-R), the existence of cryptic rearrangements has been suggested. Whether IRF4-R LBCL in adults represents the same biological entity remains unclear. To address this question, 35 CAYA patients diagnosed with LBCL-IRF4 and 7 adult (>40-year-old) LBCL with IRF4-R were investigated by an integrative molecular approach. Targeted sequencing structural variant analysis (SV-NGS) confirmed the IRF4-R in 84% of investigated cases. In CAYA, an enrichment (55% vs 29% in adults) of translocations involving IGH, with a breakpoint cluster 3' to IRF4 (EXOC2) was observed, including a cryptic insertion of IGHM-IGHJ5 into IRF4 locus. Novel translocations, IRF4::MIR142 in two CAYA (7%) and IRF4::BATF in one adult, were discovered. Whole-exome sequencing analysis identified unreported mutations in LBCL-IRF4 as YY1 and ZC3H12A (11% each). The high incidence of mutations affecting the B-cell receptor/NF-KB pathways in LBCL-IRF4 was confirmed in cases with diffuse component only. None of the CAYA tumors were classified by LymphGen tool. Adult IRF4-R LBCL showed higher levels of genetic complexity and a distinct mutational profile with mutations on KMT2D and DTX1 (43% each), and MYD88-L265P (29%), and were predicted as EZB or MCD (29% each). These differential genetic features were in line with different clinical presentations (extranodal involvement and advanced stage). In conclusion, IRF4-R architecture and mutational profile differ according to age, supporting that not all cases should be classified as LBCL-IRF4.

BACKGROUND AND OBJECTIVES: Pediatric large-volume brain arteriovenous malformations (AVMs) carry a substantial lifelong hemorrhage risk, neurological symptoms, and treatment morbidity. Single-session stereotactic radiosurgery (SRS) is often unsuitable due to constraints on dose-volume toxicity. Volume-staged SRS (VS-SRS) enables sequential dosing of large nidus volumes, potentially enhancing safety while maintaining efficacy. Evidence in children remains limited. We aimed to evaluate outcomes of VS-SRS for large AVMs in pediatric patients. METHODS: A multicenter retrospective cohort was assembled from 21 centers, including patients aged younger than 21 years treated with VS-SRS for AVMs >10 cm 3 . Clinical and radiological end points included obliteration, hemorrhage, and permanent symptomatic radiation-induced changes (RIC). RESULTS: A total of 103 patients were included (median age 14 years; IQR, 12-17). The median nidus volume at first stage was 18.2 cm 3 (IQR, 12.3-25.6). Median prescription dose per stage was 17 Gy (IQR, 16-18). The median clinical follow-up from the first stage was 57.5 months (IQR, 25-138). Obliteration occurred in 42 of 103 patients (40.8%), with actuarial rates of 6.9% (95% CI: 2.8-14) at 3 years and 29% (95% CI: 20-39) at 5 years. Hemorrhage occurred in 17 of 103 patients (16.5%) during follow-up, and permanent RIC was observed in 9 of 103 patients (8.7%). CONCLUSION: VS-SRS is a reasonably safe, selected option for pediatric large-volume AVMs when microsurgical or endovascular cure is not feasible or prudent. Delivering ≥17 Gy per stage while limiting each treatment volume to <15 cm 3 supports durable nidus control with acceptable toxicity. VS-SRS represents a key modality in multidisciplinary management of this historically difficult-to-treat population.

OBJECTIVE Ruptured, large pediatric arteriovenous malformations (AVMs) pose a significant management challenge due to high rerupture risk and the morbidity of conventional treatments. Volume-staged stereotactic radiosurgery (VS-SRS) has emerged as an alternative; however, evidence for its use in this specific population is limited. This study aimed to evaluate the long-term efficacy and safety of VS-SRS for ruptured, large AVMs in a dedicated pediatric cohort. METHODS This international, multicenter, retrospective cohort study from 21 centers analyzed outcomes for 42 pediatric patients (age < 18 years) with previously ruptured, large AVMs treated with VS-SRS. The primary outcome was complete AVM obliteration, and secondary outcomes included post-SRS hemorrhage, radiation-induced changes (RICs), and favorable outcome. Favorable outcome in this study was defined as obliteration without post-SRS hemorrhage or permanent RIC. RESULTS At the initial SRS, the median patient age was 14.5 years, and the median AVM volume was 15.0 cm 3 ; most AVMs were high grade (Spetzler-Martin grades IV and V). With a median follow-up of 41.5 months, complete AVM obliteration was achieved in 21 patients (50.0%). The cumulative obliteration rate was 37% at 5 years and 56% at 10 years. Patients with a nidus volume of ≤ 10 cm 3 had significantly higher cumulative obliteration rates than those with a nidus volume > 10 cm 3 (log-rank test, p = 0.021). Similarly, patients treated with a prescription dose > 17 Gy showed significantly higher cumulative obliteration rates compared to those treated with a dose ≤ 17 Gy (log-rank test, p = 0.012). The cumulative 5-year incidences of hemorrhage and RICs following VS-SRS were 19% and 7%, respectively. In multivariable analysis, only larger total AVM volume was an independent predictor of a lower likelihood of favorable outcome (hazard ratio 0.89, 95% CI 0.80–0.99; p = 0.036). CONCLUSIONS In this multicenter pediatric cohort, VS-SRS for ruptured, large AVMs provides a reasonable chance of long-term obliteration, but generally acceptable risks of post-SRS hemorrhage and RICs exist. VS-SRS should be considered as an option for pediatric patients with large, ruptured AVMs.

Abstract Introduction Penile implant (PI) surgery is a well-recognized strategy for erectile dysfunction (ED) with excellent functional/satisfaction outcomes. To date, little attention has been paid to the attitudes and satisfaction outcomes of female partners of such patients. Objective To qualitatively assess how female partners feel about PI surgery to inform the development of a female partner specific questionnaire. Methods Female partners of men who had undergone PI surgery (3-piece inflatable) underwent concept elicitation interviews. Prior to this, a panel of experts in female sexual health and PI surgery was convened to define potential domains of interest. Women were interviewed by one of two female sexual medicine clinicians to elicit concepts. As part of the spontaneous item generation phase, participants were asked about their attitudes, hopes and concerns prior to PI surgery, as well as changes in partner post-surgery. Participants were then asked whether they identified domains raised by the expert panel that were not mentioned during the spontaneous phase. Additional open-ended questions were asked about experiences before and after PI surgery. Interviews were transcribed verbatim for subsequent qualitative analysis by 2 trained members of the study team. Results 12 women have been interviewed. Mean partner age = 60 years, relationship duration = 20years. Interviews were held &lt;12 months post-PI for 17% of partners, 12-24 months for 25%,&gt;24 months for 58%. Partner communication and involvement in decision to get the implant were uniquely raised as pre-surgical concerns, whereas PI attributes were uniquely mentioned as post-surgical concerns. How the PI has impacted the man’s self-esteem, whether impacts to self-esteem have affected the partner, and overall satisfaction with sex were most common concepts raised across pre- and post-surgery Conclusions Using rigorous qualitative methodology, we have identified concepts that are unique to pre-surgery, post-surgery, and common across the surgical experience among partners of men who have undergone penile implant surgery. These data will facilitate development of a tool to assess female partner attitudes, beliefs and satisfaction prior to and after PI surgery. Disclosure Yes, this is sponsored by industry/sponsor: Coloplast Clarification: Industry funding only - investigator initiated and executed study

e23276 Background: More than 50,000 patients with cancers of all stages were enrolled in the E2C2 trial, which captured patient-reported data across 6 symptom domains (SPPADE): sleep, pain, impaired physical function, anxiety, depression, and energy deficit or fatigue. This trial offers a unique opportunity to evaluate the evolution of symptom burden as prostate cancer (PCa) advances and the association of symptom burden with prognosis in the various disease states. Methods: The cohort was derived by cross-referencing participants in the E2C2 study with the Mayo Clinic Cancer Registry for more granular data on disease state and treatment characteristics, focusing on PCa. Symptoms were patient-reported on a 0-10 numerical rating scale, categorized as none/mild (0-3), moderate (4-6), and severe (7-10). We compared the prevalence of symptom burden across disease states, using the first survey completed by patients, in 3 groups: (1) non-metastatic (localized, locally advanced, and biochemically recurrent), (2) metastatic hormone sensitive (mHSPC), and (3) castration resistant (CRPC), using chi square tests. We then used log-rank tests to compare survival distributions based on symptom severity within each disease state. Results: A total of 1,011 patients were included. The distribution of moderate to severe symptoms by disease state is shown in Table 1. Fatigue, impaired physical function, and pain were more prevalent in patients with advanced disease, whereas the prevalence of depression and anxiety was not statistically different by disease state. Greater fatigue and physical impairment were consistently associated with poorer OS across all disease states, including patients with non-metastatic disease (p < 0.001). Pain was most strongly associated with inferior outcomes in the more advanced disease states of mHSPC (p < 0.001) and CRPC (p < 0.001). Anxiety (p < 0.001) and depression (p = 0.001) were only prognostic in CRPC patients. Conclusions: SPPADE symptoms are common in PCa. Physical symptoms are greater in more advanced disease, yet the high burden of unmet psychologic needs is similar across the disease states. Notably, severe patient-reported fatigue and physical dysfunction are strongly prognostic even in early disease, suggesting they are markers of physiologic vulnerability. Structured symptom monitoring may improve the identification of high-risk patients. Clinical trial information: NCT03892967 . Moderate to severe symptoms by disease state. Non-Metastatic (N= 243) mHSPC (N= 479) CRPC (N= 289) P-value Pain, n (%) 51 (21.3) 121 (25.5) 100 (35.1) 0.001 Fatigue, n (%) 92 (38.3) 230 (48.6) 163 (57.2) <0.001 Impaired Physical Function, n (%) 79 (32.5) 180 (37.7) 146 (50.7) <0.001 Sleep Disturbance, n (%) 72 (30.1) 167 (35.2) 104 (36.1) 0.3 Depression, n (%) 47 (19.6) 92 (19.4) 63 (22.0) 0.67 Anxiety, n (%) 56 (23.4) 93 (19.6) 68 (23.9) 0.3

1587 Background: Rehabilitation services (physical medicine and rehabilitation [PM&R], physical therapy [PT], occupational therapy [OT], and speech-language pathology [SLP]) improve physical function, symptom burden, and quality of life for cancer survivors, yet utilization remains low due to persistent barriers. The collaborative care model–based Enhanced Electronic Health Record–Facilitated Cancer Symptom Control (E2C2) pragmatic trial improved symptom burden and palliative care utilization. Using post hoc exploratory analyses of population-level trial data, we evaluated whether this EHR-facilitated approach also increased rehabilitation service use. Methods: E2C2 was conducted across Mayo Clinic Midwest medical oncology practices using an unblinded, stepped-wedge, cluster-randomized cohort design. The EHR-embedded intervention targeted SPPADE symptoms (sleep interference, pain, impaired physical function, anxiety, depression, and fatigue). Symptoms and physical function were assessed using 11-point numerical rating scales linked to oncology encounters. Patients received self-management materials for moderate symptoms (4–6/10) and care manager support for severe symptoms (7–10/10). All outpatient rehabilitation encounters across the Mayo Clinic Enterprise were abstracted. Mixed-effects Poisson models estimated intervention effects on rehabilitation visits during the first 365 days of exposure. Results: Between March 28, 2019, and January 31, 2023, 50,207 patients were enrolled. Intervention and control conditions included 31,719 and 28,938 patients, respectively, with 10,450 contributing data to both periods. Cross-sectionally, 25% of participants reported moderate and 9% severe physical function impairment. Of 91,220 rehabilitation encounters scheduled, 57,669 (63.3%) were completed. Completed encounters were predominantly PT (68.3%), followed by OT (16.4%), physician visits (9.4%), and SLP (4.2%). The intervention was associated with a more than fourfold increase in completed rehabilitation encounters during the six weeks following index symptom assessment (adjusted mean 2.22 [95% CI, 0.14–4.29] vs 0.54 [0.40–0.68]; incidence rate ratio 4.11 [1.43–11.82]; P =0.009). Scheduled encounters also favored the intervention but did not reach statistical significance. Conclusions: An EHR-embedded symptom surveillance intervention increased short-term rehabilitation service completion, but overall utilization remained low relative to the prevalence of physical function impairment, highlighting the need for system-level strategies to translate symptom identification into sustained rehabilitation engagement.

1584 Background: Decades of evidence demonstrate that patients across the cancer continuum may benefit from validated rehabilitation services, yet delivery remains inconsistent. Prior reports of underuse have largely relied on small, single-site cohorts and have lacked population-level estimates of service need, referral, and visit completion, contributing to the assumption that provider reluctance to refer is a primary driver. Using post hoc exploratory analyses of population-level trial data, we evaluated patient- and system-level factors associated with non-use of rehabilitation services. Methods: This secondary analysis used data from the Enhanced Electronic Health Record–Facilitated Cancer Symptom Control (E2C2) pragmatic trial, an unblinded, stepped-wedge, cluster-randomized cohort study comparing an EHR-embedded symptom surveillance and management system with usual care. All patients receiving care in Mayo Clinic Midwest medical oncology practices were enrolled regardless of cancer stage or phase. Symptoms and physical function were assessed using 11-point numerical rating scales linked to oncology encounters. Sociodemographic and clinical characteristics and all outpatient rehabilitation encounters across the Mayo Clinic Enterprise were extracted from the EHR. Rates and types of completed, canceled, and no-show rehabilitation encounters were examined. Results: Between March 28, 2019, and January 31, 2023, 50,207 patients were enrolled; 34% reported moderate or severe physical function impairment during follow-up. Despite this, only 8,818 patients (17.6%) completed at least one rehabilitation encounter. Of 91,220 encounters scheduled, 57,669 (63.3%) were completed (mean 6.5; median 3 per participant), leaving a substantial proportion canceled or no-showed (n=33,523, 36.7%). Completed encounters were predominantly physical therapy (68.3%), with fewer occupational therapy (16.4%), physician (9.4%), and speech therapy (4.2%) visits. Encounters were concentrated among patients with breast, hematologic, gastrointestinal, and genitourinary cancers. Completion was more likely among patients who were older, female, partnered, retired, and federally insured, whereas cancellations and no-shows were more common among younger, racial or ethnic minority, urban, unpartnered, employed, college-educated, and commercially insured patients (all P <0.001). Virtual visits and encounters in community (vs academic) settings were more likely to be completed (all P <0.001). Conclusions: A substantial gap persists between cancer survivors’ rehabilitation needs and service receipt, varying by cancer type and sociodemographic factors. High cancellation and no-show rates suggest that underuse extends beyond referral and underscore the need for redesigned, more accessible rehabilitation delivery models.