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2.
Mayo Clin Proc Innov Qual Outcomes ; 8(5): 443-450, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39263427

RESUMO

Transgender and gender diverse (TGD) people experience disparities in cancer care, including more late-stage diagnoses, worse cancer-related outcomes, and an increased number of unaddressed and more severe symptoms related to cancer and cancer-directed therapy. This article outlines plans to address the unique needs of TGD people through a TGD-focused oncology clinic. Such a clinic could be structured by upholding the following tenets: (1) champion a supportive, gender-affirming environment that seeks to continuously improve, (2) include a transdisciplinary team of specialists who are dedicated to TGD cancer care, and (3) initiate and embrace TGD-patient-centric research on health outcomes and health care delivery.

4.
J Am Soc Echocardiogr ; 37(8): 740-748, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38754746

RESUMO

BACKGROUND: Stress echocardiographic (SE) testing is an important modality in cardiovascular risk stratification and obstructive coronary artery disease assessment. Binary sex-based parameters are classically used for the interpretation of these studies, even among transgender women (TGW). Coronary artery disease is a leading cause of morbidity and mortality in this population. Yet, it remains unclear whether TGW exhibit a distinct stress testing profile from their cisgender counterparts. METHODS: Using a matched case-control study design, the authors compared the echocardiographic stress testing profiles of TGW (n = 43) with those of matched cisgender men (CGM; n = 84) and cisgender women (CGW; n = 86) at a single center. Relevant data, including demographics, comorbidities, and cardiac testing data, were manually extracted from the patients' charts. RESULTS: The prevalence of hypertension and dyslipidemia was similar between TGW and CGW and lower than that of CGM (P = .003 and P = .009, respectively). The majority of comorbidities and laboratory values were similar. On average, TGW had higher heart rates than CGM (P = .002) and had lower blood pressures than CGM and CGW (P < .05). TGW's double product and metabolic equivalents were similar to those among CGW and lower than those of CGM (P = .016 and P = .018, respectively). On echocardiography, left ventricular end-diastolic and end-systolic diameters among TGW were similar to those of CGW but lower than those of CGM (P = .023 and P = .018, respectively). Measures of systolic and diastolic function, except for exercise mitral valve E/e' ratio, which was lower in TGW than CGW (P = .029), were largely similar among the three groups. There was no difference in the wall motion score index, and therefore, no difference in the percentage of positive SE test results. CONCLUSIONS: This study shows, for the first time, that TGW have a SE profile that is distinct from that of their cisgender counterparts. Larger, multicenter, prospective studies are warranted to further characterize the SE profile of TGW.


Assuntos
Ecocardiografia sob Estresse , Pessoas Transgênero , Humanos , Feminino , Ecocardiografia sob Estresse/métodos , Pessoa de Meia-Idade , Masculino , Pessoas Transgênero/estatística & dados numéricos , Adulto , Estudos de Casos e Controles , Doença da Artéria Coronariana/fisiopatologia , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/epidemiologia , Minnesota/epidemiologia , Prevalência , Estudos Retrospectivos
5.
Endocr Pract ; 30(9): 870-878, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38782202

RESUMO

OBJECTIVE: Feminizing gender-affirming hormone therapy is the mainstay of treatment for many transgender and gender diverse people. Injectable estradiol preparations are recommended by the World Professional Association for Transgender Health Standards of Care 8 and the Endocrine Society guidelines. Many patients prefer this route of administration, but few studies have rigorously assessed optimal dosing or route. METHODS: We performed a scoping review of the available data on estradiol levels achieved with various dosages of estradiol injections in transgender and gender diverse adults on feminizing gender-affirming hormone therapy. We also report on testosterone suppression, route (ie, subcutaneous vs intramuscular), and type of injectable estradiol ester as well as timing of blood draw relative to the most recent dose, where available. RESULTS: The data we reviewed suggest that the current guidelines, which recommend starting doses 2 to 10 mg weekly or 5 to 30 mg every 2 weeks of estradiol cypionate or valerate, are too high and likely lead to patients having supraphysiologic levels across much of their injection cycle. CONCLUSIONS: The optimal starting dose for injectable estradiol remains unclear and whether it should differ for cypionate and valerate. Based on the data available, we suggest that clinicians start injectable estradiol cypionate or valerate via subcutaneous or intramuscular injections at a dose ≤5 mg weekly and then titrate accordingly to keep levels within guideline-recommended range. Future studies should assess timing of injections and subsequent levels more precisely across the injection cycle and between esters.


Assuntos
Estradiol , Pessoas Transgênero , Humanos , Estradiol/administração & dosagem , Estradiol/sangue , Feminino , Masculino , Injeções Intramusculares , Adulto , Injeções Subcutâneas , Testosterona/administração & dosagem , Testosterona/sangue , Relação Dose-Resposta a Droga
6.
Artigo em Inglês | MEDLINE | ID: mdl-38629916

RESUMO

CONTEXT: Transgender and gender diverse (TGD) individuals have greater access to genital surgery (GS) with improved insurance coverage and access to trained surgeons and interdisciplinary gender affirming providers. OBJECTIVE: To determine perioperative medical and behavioral health outcomes in transfeminine (TF) individuals undergoing GS with use of a specific gender-affirming hormone therapy (GAHT) algorithm based on individualized risk factor assessment. DESIGN: Retrospective observational cohort study from 2017-2022. Pre- and post-operative data collected included clinical and biochemical assessment, GAHT regimens, validated behavioral health measures, and post-operative complications. SETTING: Single-center tertiary referral center. PATIENTS: 183 TF individuals, grouped into estradiol continued (Group 1) vs estradiol temporarily discontinued for 2-6 weeks preoperatively (Group 2). MAIN OUTCOME MEASURE(S): Venous thromboembolism (VTE) incidence, non-VTE postoperative complication incidence, and change in behavioral health assessments. RESULTS: The majority of individuals continued estradiol perioperatively [Group 1; 138 (75.4%)]. Individuals who temporarily held estradiol preoperatively [Group 2; 45 (24.6%)] were statistically older (p < 0.01), had higher incidence of cardiometabolic comorbidities (p < 0.01), and higher Caprini scores (p < 0.01). Group 1 was statistically more likely to use oral estradiol (p < 0.01). One episode (0.05%) of VTE occurred (Group 1). There was no significant difference in postoperative complications or behavioral health measures between groups. CONCLUSION: An individualized algorithm for preoperative hormone management for TF GS resulted in perioperative continuation of GAHT for the majority of individuals without significantly increasing the risk for post-operative surgical complications while maintaining stable behavioral health measures perioperatively.

7.
J Neurosurg ; 141(3): 781-789, 2024 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-38669710

RESUMO

OBJECTIVE: Nonfunctioning pituitary adenomas (NFPAs) present at a wide range of ages; it is possible that variable outcomes are based on patient age at presentation. This study aimed to explore long-term outcomes of patients with NFPAs following endonasal transsphenoidal surgery (ETS), considering age stratification. METHODS: This retrospective study included 228 patients with NFPAs who underwent ETS, with a median follow-up period of 63 months. The outcomes included progression-free survival (PFS) rates and neurological and endocrinological outcomes. Age-stratified Kaplan-Meier and Cox proportional hazards analyses were performed. Patients were classified into four age groups: ≤ 49, 50-59, 60-69, and ≥ 70 years. RESULTS: Age-stratified analysis showed a significant correlation between age and PFS in NFPAs (5-year PFS rates: 63.0% in those ≤ 49 years, 76.7% in those 50-59 years, 85.0% in those 60-69 years, and 88.1% in those ≥ 70 years; p = 0.001, log-rank test). Bivariate (HR 1.03, 95% CI 1.01-1.05; p = 0.001) and multivariable (HR 1.03, 95% CI 1.02-1.05; p = 0.001) analyses demonstrated that older age was significantly associated with longer PFS. Multivariable analysis also demonstrated that smaller maximum tumor diameter (HR 0.77, 95% CI 0.60-0.99; p = 0.036) and gross-total resection (HR 8.55, 95% CI 3.90-18.75; p = 0.001) were significantly associated with longer PFS. Multivariable logistic regression analysis demonstrated that only younger age was associated with postoperative improvement of male hypogonadism (HR 0.91, 95% CI 0.84-0.99; p = 0.019). Other postoperative neurological and endocrinological outcomes were not significantly associated with age. CONCLUSIONS: Older patients with NFPAs treated with ETS demonstrated a longer PFS. Of endocrinological outcomes studied, only male hypogonadism improvement was associated with younger patient age.


Assuntos
Adenoma , Neoplasias Hipofisárias , Intervalo Livre de Progressão , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Hipofisárias/cirurgia , Neoplasias Hipofisárias/mortalidade , Neoplasias Hipofisárias/patologia , Feminino , Idoso , Estudos Retrospectivos , Fatores Etários , Adenoma/cirurgia , Adenoma/patologia , Adenoma/mortalidade , Adulto , Resultado do Tratamento , Seguimentos , Idoso de 80 Anos ou mais , Procedimentos Neurocirúrgicos/métodos , Estimativa de Kaplan-Meier
9.
Blood Adv ; 7(21): 6568-6578, 2023 11 14.
Artigo em Inglês | MEDLINE | ID: mdl-37698994

RESUMO

Advances in the treatment of Langerhans cell histiocytosis (LCH) have resulted in a growing survivor population. There is a lack of data on long-term outcomes among adults with LCH. We conducted a retrospective record review of 219 adults (aged ≥18 years) with LCH. Most common presentation was multisystem (34.2%), followed by single-system pulmonary (32%), unifocal (28.3%), and single-system multifocal (5.5%) LCH. Risk organ involvement (the liver, spleen, or bone marrow) was seen in 8.7% of cases, and 40 of 88 (45.5%) tested cases were BRAFV600E. At a median follow-up of 74 months, 5-year progression-free survival (PFS) was 58.3% and estimated median PFS was 83 months. Median overall survival (OS) was not reached; 5- and 10-year OS rates were 88.7% and 74.5%, respectively. Risk organ involvement was associated with worse PFS (hazard ratio [HR], 4.5) and OS (HR, 10.8). BRAFV600E was not associated with risk organ involvement or survival. When compared with matched unaffected US population, individuals with LCH had a significantly higher risk of overall mortality (standardized mortality ratio [SMR], 2.66), specifically among those aged <55 years at diagnosis (SMR, 5.94) and those with multisystem disease (SMR, 4.12). Second cancers occurred in 16.4% cases, including diverse hematologic and solid organ malignancies. LCH-associated deaths constituted 36.1% of deaths and occurred within 5 years of diagnosis. After 5 years, non-LCH causes of death, including second cancers, chronic obstructive pulmonary disease, and cardiovascular diseases, predominated. Our study highlights, to our knowledge, for the first time, that adults with LCH experience early and late mortality from non-LCH causes and the need for development of targeted survivorship programs to improve outcomes.


Assuntos
Histiocitose de Células de Langerhans , Segunda Neoplasia Primária , Neoplasias , Humanos , Adulto , Adolescente , Estudos Retrospectivos , Histiocitose de Células de Langerhans/epidemiologia , Baço
10.
Blood ; 142(18): 1570-1575, 2023 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-37595284

RESUMO

In this retrospective study, BRAF mutation status did not correlate with disease extent or (event-free) survival in 156 adults with Langerhans cell histiocytosis. BRAFV600E was associated with an increased incidence of second malignancies, often comprising hematological cancers, which may be clonally related.


Assuntos
Histiocitose de Células de Langerhans , Segunda Neoplasia Primária , Humanos , Adulto , Segunda Neoplasia Primária/epidemiologia , Segunda Neoplasia Primária/genética , Proteínas Proto-Oncogênicas B-raf/genética , Estudos Retrospectivos , Incidência , Histiocitose de Células de Langerhans/epidemiologia , Histiocitose de Células de Langerhans/genética , Histiocitose de Células de Langerhans/patologia , Mutação
12.
Respir Med Case Rep ; 44: 101876, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37292171

RESUMO

Among patients with COPD, ventilatory inefficiency in response to exercise can be due to respiratory muscle dysfunction or expiratory flow limitation causing air-trapping and dynamic hyperinflation. We discuss a case of severe ventilatory limitation in response to exercise due to reduced respiratory muscle mass in the setting of gender-affirming hormone therapy (GAHT), and how the interpretation of pulmonary function testing (PFT) and respiratory symptoms among transgender and gender diverse (TGD) patients can be influenced by GAHT.

13.
Curr Neurol Neurosci Rep ; 23(6): 277-286, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37209319

RESUMO

PURPOSE OF REVIEW: Histiocytic disorders, including Erdheim-Chester disease (ECD), Langerhans cell histiocytosis (LCH), and Rosai-Dorfman disease (RDD), are rare neoplasms that may present with a spectrum of neurologic involvement. Diagnostic delay is common due to heterogeneity in presentation and challenging pathology. RECENT FINDINGS: Recent advances in the treatment of these diseases targeted towards mutations in the MAP kinase pathway have led to an improved prognosis in these patients with neurologic involvement. It is critical for clinicians to have a high index of suspicion to allow for early targeted treatment and optimize neurologic outcomes. A systematic approach to diagnosis is presented in this article to allow for accurate diagnosis of these rare diseases.


Assuntos
Doença de Erdheim-Chester , Histiocitose de Células de Langerhans , Histiocitose Sinusal , Humanos , Diagnóstico Tardio , Histiocitose de Células de Langerhans/complicações , Histiocitose de Células de Langerhans/diagnóstico , Histiocitose de Células de Langerhans/genética , Doença de Erdheim-Chester/complicações , Doença de Erdheim-Chester/diagnóstico , Doença de Erdheim-Chester/genética , Histiocitose Sinusal/diagnóstico , Histiocitose Sinusal/patologia , Histiocitose Sinusal/terapia , Prognóstico
14.
J Community Health ; 48(5): 889-897, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37219789

RESUMO

Breast cancer screening recommendations for transgender and gender diverse (TGD) patients have only been recently developed and many primary care practitioners (PCPs) are unaware of these specific recommendations. The aim of this study is to assess the level of familiarity and knowledge PCPs have with breast cancer screening recommendations for TGD patients. An anonymous survey was distributed to primary care physicians, primary care advanced practice practitioners, and internal medicine and family medicine residents at three academic medical systems in the United States (Mayo Clinic, University of Michigan, University of Texas - Medical Branch). Survey questions assessed the familiarity and knowledge base of TGD breast cancer screening recommendations, training and experience with TGD patients, and basic demographics of the practitioners. Of the 95 survey respondents, only 35% of respondents were aware that breast cancer screening recommendations for TGD patients existed. PCPs who had increased transgender specific health care training and direct clinical exposure to TGD patients demonstrated significantly higher levels of screening recommendation awareness. Two-thirds of respondents received TGD specific medical education during training or medical career and those who had increased transgender specific medical education or direct clinical exposure to TGD patients demonstrated significantly higher levels of screening recommendation awareness. Awareness of breast cancer screening recommendations for TGD patients is low among PCPs and varied based on the practitioner's prior TGD education and experience. Up-to-date breast cancer screening recommendations for TGD patients should be readily available across multiple platforms, target key audiences, and integrated into transgender health educational curriculums to maximize awareness of these important recommendations.


Assuntos
Neoplasias da Mama , Pessoas Transgênero , Humanos , Estados Unidos , Feminino , Neoplasias da Mama/diagnóstico , Detecção Precoce de Câncer , Inquéritos e Questionários , Atenção Primária à Saúde , Identidade de Gênero
15.
Endocr Pract ; 29(5): 356-361, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36868378

RESUMO

OBJECTIVE: Gender-affirming hormone therapy guidelines describe the estradiol (E2) doses for intramuscular (IM), but not subcutaneous (SC), routes. The objective was to compare the SC and IM E2 doses and hormone levels in transgender and gender diverse individuals. METHODS: This is a retrospective cohort study at a single-site tertiary care referral center. Patients were transgender and gender diverse individuals who received injectable E2 with at least 2 E2 measurements. The main outcomes were the dose and serum hormone levels between the SC and IM routes. RESULTS: There were no statistically significant differences in age, body mass index, or antiandrogen use between patients on SC (n = 74) and those on IM (n = 56). The weekly doses of SC E2, 3.75 mg (IQR, 3-4 mg), were statistically significantly lower than those of IM E2, 4 mg (IQR, 3-5.15 mg) (P =.005); however, the E2 levels achieved were not significantly different (P =.69), and the testosterone levels were in the cisgender female range and not significantly different between routes (P =.92). Subgroup analysis demonstrated significantly higher doses in the IM group when the E2 and testosterone levels were >100 pg/mL and <50 ng/dL, respectively, with the presence of the gonads or use of antiandrogens. Multiple regression analysis demonstrated that the dose was significantly associated with the E2 levels after adjusting for injection route, body mass index, antiandrogen use, and gonadectomy status. CONCLUSION: Both the SC and IM E2 achieve therapeutic E2 levels without a significant difference in the dose (3.75 vs 4 mg). SC may achieve therapeutic levels at lower doses than IM .


Assuntos
Estradiol , Pessoas Transgênero , Humanos , Feminino , Estudos Retrospectivos , Injeções Subcutâneas , Antagonistas de Androgênios , Testosterona , Injeções Intramusculares
17.
Ophthalmology ; 130(1): 77-86, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35932838

RESUMO

PURPOSE: To evaluate the clinical presentation, treatment, and outcomes in adult patients with histiocytic disorders with ocular, orbital, optic nerve, or cavernous sinus involvement. DESIGN: Observational, retrospective chart review. PARTICIPANTS: Adult patients (age ≥ 18 years) at Mayo Clinic from January 1, 1996, to July 1, 2021, with histiocytic disorders. Inclusion criteria were (1) histiocytic disorder by biopsy and appropriate clinical phenotype; (2) available medical records; and (3) ocular, orbital, optic nerve, or cavernous sinus involvement. METHODS: Retrospective chart review. MAIN OUTCOME MEASURES: Response to therapy, measured in clinical and radiographic impact. RESULTS: Thirty-two patients were identified: 7 with Langerhans cell histiocytosis (LCH); 15 with Erdheim-Chester disease (ECD); 1 with mixed LCH/ECD phenotype; 8 with Rosai-Dorfman disease (RDD); and 1 with mixed RDD/ECD phenotype. Ophthalmologic involvement was part of the initial presentation in 69% of patients (22/32). Eyelid edema (13/32, 41%) and proptosis (12/32, 38%) were the most frequent presentations. Isolated orbital or cavernous sinus involvement was present in 3 of 7 patients with LCH and 1 of 8 patients with RDD. Optic nerve sheath involvement was present in 2 of 7 LCH patients, 14 of 15 ECD patients, and 1 RDD/ECD patient. Diffuse (> 75%) orbital involvement was seen in 12 of 15 ECD patients and 1 of 7 LCH patients. Ocular involvement was seen in 1 of 15 ECD patients, 6 of 8 RDD patients, and 1 of 1 mixed RDD/ECD patient. The cavernous sinuses were involved in 1 of 7 LCH patients, 5 of 15 ECD patients, and both mixed phenotype patients. Visual acuity was affected in 14 patients (14/24, 58%) with a median logarithm of the minimum angle of resolution visual acuity of 0.1 (range, -0.12 to 3). BRAF V600E mutations were found in 75% (3/4) of LCH patients and 91% (10/11) of ECD patients. Patients received a variety of treatment, and response was variable across disease types. CONCLUSIONS: Orbital involvement was more commonly seen in LCH and ECD, whereas ocular involvement was more common in RDD. Visual acuity may be impacted from ocular involvement or compression of the optic nerve with diffuse orbital involvement.


Assuntos
Doença de Erdheim-Chester , Exoftalmia , Histiocitose de Células de Langerhans , Humanos , Estudos Retrospectivos , Doença de Erdheim-Chester/complicações , Doença de Erdheim-Chester/diagnóstico , Doença de Erdheim-Chester/tratamento farmacológico , Histiocitose de Células de Langerhans/complicações , Histiocitose de Células de Langerhans/diagnóstico , Histiocitose de Células de Langerhans/tratamento farmacológico , Resultado do Tratamento , Exoftalmia/diagnóstico
18.
J Magn Reson Imaging ; 57(5): 1443-1450, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-35894392

RESUMO

BACKGROUND: Focally enlarged sulci (FES) are areas of proposed extraventricular fluid entrapment that may occur within idiopathic normal pressure hydrocephalus (iNPH) with radiographic evidence of disproportionately enlarged subarachnoid-space hydrocephalus (DESH), and should be differentiated from atrophy. PURPOSE: To evaluate for change in FES size and pituitary height after shunt placement in iNPH. STUDY TYPE: Retrospective. SUBJECTS: A total of 125 iNPH patients who underwent shunt surgery and 40 age-matched controls. FIELD STRENGTH/SEQUENCE: 1.5 T and 3 T. Axial T2w FLAIR, 3D T1w MPRAGE, 2D sagittal T1w. ASSESSMENT: FES were measured in three dimensions and volume was estimated by assuming an ellipsoid shape. Pituitary gland height was measured in the mid third of the gland in iNPH patients and controls. STATISTICAL TESTS: Wilcoxon signed-rank test for comparisons between MRI measurements; Wilcoxon rank sum test for comparison of cases/controls. Significance level was P < 0.05. RESULTS: Fifty percent of the patients had FES. FES volume significantly decreased between the pre and first postshunt MRI by a median of 303 mm3 or 30.0%. Pituitary gland size significantly increased by 0.48 mm or 14.4%. FES decreased significantly by 190 mm3 or 23.1% and pituitary gland size increased significantly by 0.25 mm or 6% between the first and last postshunt MRI. DATA CONCLUSION: Decrease in size of FES after shunt placement provides further evidence that these regions are due to disordered cerebrospinal fluid (CSF) dynamics and should not be misinterpreted as atrophy. A relatively smaller pituitary gland in iNPH patients that normalizes after shunt is a less-well recognized feature of altered CSF dynamics. EVIDENCE LEVEL: 3 TECHNICAL EFFICACY: Stage 2.


Assuntos
Hidrocefalia de Pressão Normal , Humanos , Hidrocefalia de Pressão Normal/patologia , Hidrocefalia de Pressão Normal/cirurgia , Estudos Retrospectivos , Espaço Subaracnóideo/patologia , Espaço Subaracnóideo/cirurgia , Imageamento por Ressonância Magnética/métodos , Atrofia/patologia
19.
JAMA Oncol ; 8(12): 1816-1820, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-36201194

RESUMO

Importance: Rosai-Dorfman disease (RDD) is a rare histiocytic neoplasm with recent studies showing alterations in the MAPK pathway, most commonly in the KRAS and MEK genes in about 40% of patients. Reports on the use of MEK-inhibitor therapy in RDD have been limited to small case studies. There are no approved treatments for this neoplasm, and therefore patients with RDD need efficacious treatments. Objective: To study the outcomes after treatment with cobimetinib based on MAPK pathway alterations in patients with RDD. Design, Setting, and Participants: This retrospective cohort study conducted at 2 tertiary care centers included patients with RDD who underwent treatment with cobimetinib between January 1, 2013, and December 1, 2021. Cobimetinib was administered at a dosage of 20 to 60 mg orally once daily as a single agent for 21 days in a 28-day cycle. Pathology was centrally reviewed. Response assessment was centrally conducted and was based on the established positron emission radiography response criteria used for clinical trials of targeted therapies in histiocytosis. Main Outcomes and Measures: Main outcomes were overall response rate (ORR), progression-free survival (PFS), adverse events (AEs) of cobimetinib in the entire cohort, and ORRs and PFS based on MAPK pathway alterations in patients with RDD. Results: A total of 16 patients (median [range] age at cobimetinib initiation, 57 [31-74] years; 11 [69%] women) were included in the study. The median follow-up duration was 19.0 months (95% CI, 8.4-27.8 months). The ORR was 63% (n = 10), including 5 complete responses and 5 partial responses. Somatic alterations in the KRAS or MEK genes were detected in 8 (50%) patients. Patients with KRAS or MEK alterations had significantly higher ORR (88% vs 38%; P = .03), deeper responses (complete responses among responders: 71% vs 0%; P = .002), and better PFS (at 1 year, 100% vs 29% were free from progression or death, respectively; P < .001) compared with those without such alterations. Grade 2 or higher AEs occurred in 12 (75%) patients, and 9 (56%) required dose reduction or temporary/permanent treatment discontinuation due to AEs. Conclusions and Relevance: In this cohort study, treatment with cobimetinib was associated with positive outcomes in KRAS- or MEK-variant RDD. However, AEs requiring dose modifications were common.


Assuntos
Histiocitose Sinusal , Neoplasias , Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Masculino , Histiocitose Sinusal/tratamento farmacológico , Histiocitose Sinusal/patologia , Proteínas Proto-Oncogênicas p21(ras)/genética , Estudos Retrospectivos , Estudos de Coortes , Quinases de Proteína Quinase Ativadas por Mitógeno
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