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1.
Neuro Oncol ; 24(8): 1366-1374, 2022 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-35137228

RESUMEN

BACKGROUND: Diffuse Midline Glioma (DMG) with the H3K27M mutation is a lethal childhood brain cancer, with patients rarely surviving 2 years from diagnosis. METHODS: We conducted a multi-site Phase 1 trial of the imipridone ONC201 for children with H3K27M-mutant glioma (NCT03416530). Patients enrolled on Arm D of the trial (n = 24) underwent serial lumbar puncture for cell-free tumor DNA (cf-tDNA) analysis and patients on all arms at the University of Michigan underwent serial plasma collection. We performed digital droplet polymerase chain reaction (ddPCR) analysis of cf-tDNA samples and compared variant allele fraction (VAF) to radiographic change (maximal 2D tumor area on MRI). RESULTS: Change in H3.3K27M VAF over time ("VAF delta") correlated with prolonged PFS in both CSF and plasma samples. Nonrecurrent patients that had a decrease in CSF VAF displayed a longer progression free survival (P = .0042). Decrease in plasma VAF displayed a similar trend (P = .085). VAF "spikes" (increase of at least 25%) preceded tumor progression in 8/16 cases (50%) in plasma and 5/11 cases (45.4%) in CSF. In individual cases, early reduction in H3K27M VAF predicted long-term clinical response (>1 year) to ONC201, and did not increase in cases of later-defined pseudo-progression. CONCLUSION: Our work demonstrates the feasibility and potential utility of serial cf-tDNA in both plasma and CSF of DMG patients to supplement radiographic monitoring. Patterns of change in H3K27M VAF over time demonstrate clinical utility in terms of predicting progression and sustained response and possible differentiation of pseudo-progression and pseudo-response.


Asunto(s)
Neoplasias Encefálicas , ADN Tumoral Circulante , Glioma , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/terapia , Niño , ADN Tumoral Circulante/genética , Glioma/diagnóstico , Glioma/genética , Glioma/terapia , Histonas/genética , Humanos , Imidazoles , Mutación , Piridinas , Pirimidinas
2.
Lancet Child Adolesc Health ; 6(1): 38-48, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34767765

RESUMEN

BACKGROUND: Young survivors of cancer are at increased risk for cancers that are related to human papillomavirus (HPV), primarily caused by oncogenic HPV types 16 and 18. We aimed to examine the immunogenicity and safety of the three-dose series of HPV vaccine in young survivors of cancer. METHODS: We conducted an investigator-initiated, phase 2, single-arm, open-label, non-inferiority trial at five National Cancer Institute-designated comprehensive cancer centres in the USA. Eligible participants were survivors of cancer who were HPV vaccine-naive, were aged 9-26 years, in remission, and had completed cancer therapy between 1 and 5 years previously. Participants received three intramuscular doses of either quadrivalent HPV vaccine (HPV4; enrolments on or before March 1, 2016) or nonavalent HPV vaccine (HPV9; enrolments after March 1, 2016) over 6 months (on day 1, at month 2, and at month 6). We also obtained data from published clinical trials assessing safety and immunogenicity of HPV4 and HPV9 in 9-26-year-olds from the general population, as a comparator group. The primary endpoint was antibody response against HPV types 16 and 18 at month 7 in the per-protocol population. A response was deemed non-inferior if the lower bound of the multiplicity-adjusted 95% CI was greater than 0·5 for the ratio of anti-HPV-16 and anti-HPV-18 geometric mean titres (GMTs) in survivors of cancer versus the general population. Responses were examined separately in male and female participants by age group (ie, 9-15 years and 16-26 years). Safety was assessed in all participants who received at least one vaccine dose and for whom safety data were available. This study is registered with ClinicalTrials.gov, NCT01492582. This trial is now completed. FINDINGS: Between Feb 18, 2013, and June 22, 2018, we enrolled 453 survivors of cancer, of whom 436 received one or more vaccine doses: 203 (47%) participants had survived leukaemia, 185 (42%) were female, and 280 (64%) were non-Hispanic white. Mean age at first dose was 15·6 years (SD 4·6). 378 (83%) of 453 participants had evaluable immunogenicity data; main reasons for exclusion from per-protocol analysis were to loss to follow-up, patient reasons, and medical reasons. Data were also obtained from 26 486 general population controls. The ratio of mean GMT for anti-HPV types 16 and 18 in survivors of cancer versus the general population was more than 1 for all subgroups (ie, aged 9-15 years, aged 16-26 years, male, and female groups) in both vaccine cohorts (ranging from 1·64 [95% CI 1·12-2·18] for anti-HPV type 16 in female participants aged 9-15 years who received HPV9, to 4·77 [2·48-7·18] for anti-HPV type 18 in male participants aged 16-26 years who received HPV4). Non-inferiority criteria were met within each age and sex subgroup, except against HPV type 18 in female participants aged 16-26 years receiving HPV9 (4·30 [0·00-9·05]). Adverse events were reported by 237 (54%) of 435 participants; injection site pain was most common (174 [40%] participants). One serious adverse event (ie, erythema nodosum) was possibly related to vaccine (HPV9; 16-26 year female cohort). INTERPRETATION: Immunogenicity and safety of HPV vaccine three-dose series in survivors of cancer is similar to that in the general population, providing evidence for use in this clinically vulnerable population. FUNDING: US National Cancer Institute, Merck, Sharp & Dohme, and American Lebanese Syrian Associated Charities.


Asunto(s)
Supervivientes de Cáncer/estadística & datos numéricos , Inmunogenicidad Vacunal , Infecciones por Papillomavirus , Vacunas contra Papillomavirus/administración & dosificación , Seguridad del Paciente , Adolescente , Adulto , Esquema de Medicación , Femenino , Papillomavirus Humano 16/inmunología , Papillomavirus Humano 18/inmunología , Humanos , Masculino , Infecciones por Papillomavirus/inmunología , Infecciones por Papillomavirus/prevención & control , Estados Unidos , Vacunas Combinadas/administración & dosificación , Adulto Joven
3.
J Clin Invest ; 130(10): 5313-5325, 2020 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-32603316

RESUMEN

Pediatric and adult high-grade gliomas (HGGs) frequently harbor PDGFRA alterations. We hypothesized that cotreatment with everolimus may improve the efficacy of dasatinib in PDGFRα-driven glioma through combinatorial synergism and increased tumor accumulation of dasatinib. We performed dose-response, synergism, P-glycoprotein inhibition, and pharmacokinetic studies in in vitro and in vivo human and mouse models of HGG. Six patients with recurrent PDGFRα-driven glioma were treated with dasatinib and everolimus. We found that dasatinib effectively inhibited the proliferation of mouse and human primary HGG cells with a variety of PDGFRA alterations. Dasatinib exhibited synergy with everolimus in the treatment of HGG cells at low nanomolar concentrations of both agents, with a reduction in mTOR signaling that persisted after dasatinib treatment alone. Prolonged exposure to everolimus significantly improved the CNS retention of dasatinib and extended the survival of PPK tumor-bearing mice (mutant TP53, mutant PDGFRA, H3K27M). Six pediatric patients with glioma tolerated this combination without significant adverse events, and 4 patients with recurrent disease (n = 4) had a median overall survival of 8.5 months. Our results show that the efficacy of dasatinib treatment of PDGFRα-driven HGG was enhanced with everolimus and suggest a promising route for improving targeted therapy for this patient population.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/genética , Dasatinib/administración & dosificación , Everolimus/administración & dosificación , Glioma/tratamiento farmacológico , Glioma/genética , Receptor beta de Factor de Crecimiento Derivado de Plaquetas/genética , Subfamilia B de Transportador de Casetes de Unión a ATP/genética , Adolescente , Animales , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Neoplasias Encefálicas/metabolismo , Proliferación Celular/efectos de los fármacos , Niño , Preescolar , Dasatinib/farmacocinética , Ensayos de Selección de Medicamentos Antitumorales , Sinergismo Farmacológico , Everolimus/farmacocinética , Femenino , Expresión Génica , Glioma/metabolismo , Humanos , Masculino , Ratones , Terapia Molecular Dirigida , Embarazo , Células Tumorales Cultivadas
4.
BMJ Case Rep ; 13(4)2020 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-32269049

RESUMEN

Optic pathway gliomas are commonly associated with vision loss in children. We describe an 18-year-old woman with neurofibromatosis, type 1 and an optic nerve glioma who showed reproducible visual field defects that worsened midmenstrual cycle and returned to baseline during menses. To our knowledge, this is the first reported case of visual field fluctuations in a patient with an optic nerve glioma that correlated with her menstrual cycle.


Asunto(s)
Ciclo Menstrual , Neurofibromatosis 1/fisiopatología , Glioma del Nervio Óptico/fisiopatología , Trastornos de la Visión/fisiopatología , Campos Visuales , Adolescente , Femenino , Humanos , Factores Inmunológicos/uso terapéutico , Lenalidomida/uso terapéutico , Neurofibromatosis 1/tratamiento farmacológico , Glioma del Nervio Óptico/tratamiento farmacológico , Trastornos de la Visión/tratamiento farmacológico
5.
Acta Neuropathol Commun ; 6(1): 67, 2018 07 26.
Artículo en Inglés | MEDLINE | ID: mdl-30049282

RESUMEN

With improved survivorship in medulloblastoma, there has been an increasing incidence of late complications. To date, no studies have specifically addressed the risk of radiation-associated diffuse intrinsic pontine glioma (DIPG) in medulloblastoma survivors. Query of the International DIPG Registry identified six cases of DIPG with a history of medulloblastoma treated with radiotherapy. All patients underwent central radiologic review that confirmed a diagnosis of DIPG. Six additional cases were identified in reports from recent cooperative group medulloblastoma trials (total n = 12; ages 7 to 21 years). From these cases, molecular subgrouping of primary medulloblastomas with available tissue (n = 5) revealed only non-WNT, non-SHH subgroups (group 3 or 4). The estimated cumulative incidence of DIPG after post-treatment medulloblastoma ranged from 0.3-3.9%. Posterior fossa radiation exposure (including brainstem) was greater than 53.0 Gy in all cases with available details. Tumor/germline exome sequencing of three radiation-associated DIPGs revealed an H3 wild-type status and mutational signature distinct from primary DIPG with evidence of radiation-induced DNA damage. Mutations identified in the radiation-associated DIPGs had significant molecular overlap with recurrent drivers of adult glioblastoma (e.g. NRAS, EGFR, and PTEN), as opposed to epigenetic dysregulation in H3-driven primary DIPGs. Patients with radiation-associated DIPG had a significantly worse median overall survival (median 8 months; range 4-17 months) compared to patients with primary DIPG. Here, it is demonstrated that DIPG occurs as a not infrequent complication of radiation therapy in survivors of pediatric medulloblastoma and that radiation-associated DIPGs may present as a poorly-prognostic distinct molecular subgroup of H3 wild-type DIPG. Given the abysmal survival of these cases, these findings provide a compelling argument for efforts to reduce exposure of the brainstem in the treatment of medulloblastoma. Additionally, patients with radiation-associated DIPG may benefit from future therapies targeted to the molecular features of adult glioblastoma rather than primary DIPG.


Asunto(s)
Neoplasias del Tronco Encefálico/etiología , Neoplasias del Tronco Encefálico/genética , Glioma/etiología , Glioma/genética , Histonas/genética , Mutación/genética , Radioterapia/efectos adversos , Adolescente , Neoplasias Cerebelosas/radioterapia , Niño , Estudios de Cohortes , Exoma , Femenino , Proteínas Hedgehog/metabolismo , Humanos , Cooperación Internacional , Masculino , Meduloblastoma/radioterapia , Sistema de Registros , Transducción de Señal/fisiología , Estadísticas no Paramétricas , Transcriptoma , Proteínas Wnt/metabolismo , Adulto Joven
6.
Artículo en Inglés | MEDLINE | ID: mdl-32832832

RESUMEN

PURPOSE: Brain tumors have become the leading cause of cancer-related mortality in young patients. Novel effective therapies on the basis of the unique biology of each tumor are urgently needed. The goal of this study was to evaluate the feasibility, utility, and clinical impact of integrative clinical sequencing and genetic counseling in children and young adults with high-risk brain tumors. PATIENTS AND METHODS: Fifty-two children and young adults with brain tumors designated by the treating neuro-oncologist to be high risk (> 25% chance for treatment failure; mean age, 10.2 years; range, 0 to 39 years) were enrolled in a prospective, observational, consecutive case series, in which participants underwent integrative clinical exome (tumor and germline DNA) and transcriptome (tumor RNA) sequencing and genetic counseling. Results were discussed in a multi-institutional brain tumor precision medicine teleconference. RESULTS: Sequencing revealed a potentially actionable germline or tumor alteration in 25 (63%) of 40 tumors with adequate tissue, of which 21 (53%) resulted in an impact on treatment or change of diagnosis. Platelet-derived growth factor receptor or fibroblast growth factor receptor pathway alterations were seen in nine of 20 (45%) glial tumors. Eight (20%) sequenced tumors harbored an oncogenic fusion isolated on RNA sequencing. Seventeen of 20 patients (85%) with glial tumors were found to have a potentially actionable result, which resulted in change of therapy in 14 (70%) patients. Patients with recurrent brain tumors receiving targeted therapy had a median progression-free survival (from time on therapy) of 4 months. CONCLUSION: Selection of personalized agents for children and young adults with highrisk brain tumors on the basis of integrative clinical sequencing is feasible and resulted in a change in therapy in more than two thirds of children and young adults with high-risk glial tumors.

7.
J Clin Oncol ; 35(34): 3830-3836, 2017 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-28976795

RESUMEN

Purpose To estimate the prevalence of sperm banking among adolescent males newly diagnosed with cancer and to identify factors associated with banking outcomes. Patients and Methods A prospective, single-group, observational study design was used to test the contribution of sociodemographic, medical, psychological/health belief, communication, and developmental factors to fertility preservation outcomes. At-risk adolescent males (N = 146; age 13.00 to 21.99 years; Tanner stage ≥ 3), their parents, and medical providers from eight leading pediatric oncology centers across the United States and Canada completed self-report questionnaires within 1 week of treatment initiation. Multivariable logistic regression was used to calculate odds ratios (ORs) and 95% CIs for specified banking outcomes (collection attempt v no attempt and successful completion of banking v no banking). Results Among adolescents (mean age, 16.49 years; standard deviation, 2.02 years), 53.4% (78 of 146) made a collection attempt, with 43.8% (64 of 146) successfully banking sperm (82.1% of attempters). The overall attempt model revealed adolescent consultation with a fertility specialist (OR, 29.96; 95% CI, 2.48 to 361.41; P = .007), parent recommendation to bank (OR, 12.30; 95% CI, 2.01 to 75.94; P = .007), and higher Tanner stage (OR, 5.42; 95% CI, 1.75 to 16.78; P = .003) were associated with an increased likelihood of a collection attempt. Adolescent history of masturbation (OR, 5.99; 95% CI, 1.25 to 28.50; P = .025), banking self-efficacy (OR, 1.23; 95% CI, 1.05 to 1.45; P = .012), and parent (OR, 4.62; 95% CI, 1.46 to 14.73; P = .010) or medical team (OR, 4.26; 95% CI, 1.45 to 12.43; P = .008) recommendation to bank were associated with increased likelihood of sperm banking completion. Conclusion Although findings suggest that banking is underutilized, modifiable adolescent, parent, and provider factors associated with banking outcomes were identified and should be targeted in future intervention efforts.


Asunto(s)
Actitud Frente a la Salud , Preservación de la Fertilidad/estadística & datos numéricos , Comunicación Interdisciplinaria , Neoplasias/epidemiología , Preservación de Semen/estadística & datos numéricos , Bancos de Esperma/organización & administración , Adolescente , Teorema de Bayes , Canadá , Estudios de Cohortes , Preservación de la Fertilidad/métodos , Personal de Salud/estadística & datos numéricos , Humanos , Modelos Logísticos , Masculino , Cadenas de Markov , Método de Montecarlo , Neoplasias/patología , Neoplasias/terapia , Padres/psicología , Valor Predictivo de las Pruebas , Estudios Prospectivos , Medición de Riesgo , Preservación de Semen/métodos , Factores Socioeconómicos , Sobrevivientes , Estados Unidos , Adulto Joven
8.
Transl Res ; 188: 27.e1-27.e14, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28860053

RESUMEN

Targeted chemotherapeutics provide a promising new treatment option in neuro-oncology. The ability of these compounds to penetrate the blood-brain barrier is crucial for their successful incorporation into patient care. "CNS Targeted Agent Prediction" (CNS-TAP) is a multi-institutional and multidisciplinary translational program established at the University of Michigan for evaluating the central nervous system (CNS) activity of targeted therapies in neuro-oncology. In this report, we present the methodology of CNS-TAP in a series of pediatric and adolescent patients with high-risk brain tumors, for which molecular profiling (academic and commercial) was sought and targeted agents were incorporated. Four of five of the patients had potential clinical benefit (partial response or stable disease greater than 6 months on therapy). We further describe the specific drug properties of each agent chosen and discuss characteristics relevant in their evaluation for therapeutic suitability. Finally, we summarize both tumor and drug characteristics that impact the ability to successfully incorporate targeted therapies into CNS malignancy management.


Asunto(s)
Antineoplásicos/uso terapéutico , Barrera Hematoencefálica , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/metabolismo , Medicina de Precisión/métodos , Antineoplásicos/farmacocinética , Niño , Regulación Neoplásica de la Expresión Génica , Humanos , Terapia Molecular Dirigida , Selección de Paciente , Valor Predictivo de las Pruebas
9.
NPJ Precis Oncol ; 1(1): 32, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29872713

RESUMEN

Improved molecular understanding is needed for rational treatment of diffuse intrinsic pontine gliomas (DIPG). Here, using multi-focal paired tumor and germline exome DNA and RNA sequencing, we uncovered phosphatase and tensin homolog (PTEN) loss as a clonal mutation in the case of a 6-year-old boy with a diffuse intrinsic pontine glioma, and incorporated copy number alteration analyses to provide a more detailed understanding of clonal evolution in diffuse intrinsic pontine gliomas. As well, using the PedcBioPortal, we found alterations in PTEN in 16 of 326 (4.9%) cases of pediatric high-grade glioma (3 of 154 (1.9%) brainstem) for which full sequencing data was available. Our data strengthens the association with PTEN loss in diffuse intrinsic pontine gliomas and provides further argument for the inclusion of PTEN in future targeted sequencing panels for pediatric diffuse intrinsic pontine gliomas and for the development and optimization of mTOR/PI3K inhibitors with optimal central nervous system penetration.

10.
Oncotarget ; 7(40): 65696-65706, 2016 Oct 04.
Artículo en Inglés | MEDLINE | ID: mdl-27582545

RESUMEN

Pediatric high-grade glioma (HGG, WHO Grade III and IV) is a devastating brain tumor with a median survival of less than two years. PDGFRA is frequently mutated/ amplified in pediatric HGG, but the significance of this finding has not been fully characterized. We hypothesize that alterations of PDGFRA will promote distinct prognostic and treatment implications in pediatric HGG. In order to characterize the impact of PDGFR pathway alterations, we integrated genomic data from pediatric HGG patients (n=290) from multiple pediatric datasets and sequencing platforms. Integration of multiple human datasets showed that PDGFRA mutation, but not amplification, was associated with older age in pediatric HGG (P= <0.0001). In multivariate analysis, PDGFRA mutation was correlated with worse prognosis (P = 0.026), while PDGFRA amplification was not (P = 0.11). By Kaplan-Meier analysis, non-brainstem HGG with PDGFRA amplification carried a worse prognosis than non-brainstem HGG without PDGFRA amplification (P = 0.021). There were no pediatric patients with PDGFRA-amplified HGG that survived longer than two years. Additionally, we performed paired molecular profiling (germline / tumor / primary cell culture) and targeting of an infant thalamic HGG with amplification and outlier increased expression of PDGFRA. Dasatinib inhibited proliferation most effectively. In summary, integration of the largest genomic dataset of pediatric HGG to date, allowed us to highlight that PDGFRA mutation is found in older pediatric patients and that PDGFRA amplification is prognostic in non-brainstem HGG. Future precision-medicine based clinical trials for pediatric patients with PDGFRA-altered HGG should consider the optimized delivery of dasatinib.


Asunto(s)
Biomarcadores de Tumor/genética , Neoplasias Encefálicas/genética , Amplificación de Genes , Glioma/genética , Mutación , Receptor alfa de Factor de Crecimiento Derivado de Plaquetas/genética , Adolescente , Adulto , Factores de Edad , Antineoplásicos/farmacología , Apoptosis/efectos de los fármacos , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/patología , Proliferación Celular/efectos de los fármacos , Niño , Preescolar , Femenino , Estudios de Seguimiento , Glioma/tratamiento farmacológico , Glioma/patología , Humanos , Lactante , Masculino , Clasificación del Tumor , Tasa de Supervivencia , Células Tumorales Cultivadas , Adulto Joven
11.
J Pediatr Oncol Nurs ; 33(5): 387-91, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-26611754

RESUMEN

The progress made over the past 50 years in disease-directed clinical trials has significantly increased cure rates for children and adolescents with cancer. The Children's Oncology Group (COG) is now conducting more studies that emphasize improving quality of life for young people with cancer. These types of clinical trials are classified as cancer control (CCL) studies by the National Cancer Institute and require different resources and approaches to facilitate adequate accrual and implementation at COG institutions. Several COG institutions that had previously experienced problems with low accruals to CCL trials have successfully implemented local nursing leadership for these types of studies. Successful models of nurses as institutional leaders and "champions" of CCL trials are described.


Asunto(s)
Investigación Biomédica/organización & administración , Ensayos Clínicos como Asunto , Neoplasias/fisiopatología , Rol de la Enfermera , Enfermería Oncológica/organización & administración , Selección de Paciente , Enfermería Pediátrica/organización & administración , Adolescente , Niño , Preescolar , Femenino , Humanos , Lactante , Liderazgo , Masculino , Estados Unidos
12.
J Cancer Educ ; 31(3): 588-94, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-26076657

RESUMEN

While it is recognized that cancer treatment can contribute to problems in sexual function, much less is currently known about the specific sexual health concerns and information needs of cancer survivors. This study tested a new instrument to measure cancer survivors' sexual health concerns and needs for sexual information after cancer treatment. The Information on Sexual Health: Your Needs after Cancer (InSYNC), developed by a multidisciplinary team of experts, is a novel 12-item questionnaire to measure sexual health concerns and information needs of cancer survivors. We tested the measure with a sample of breast and prostate cancer survivors. A convenience sample of 114 cancer survivors (58 breast, 56 prostate) was enrolled. Results of the InSYNC questionnaire showed high levels of sexual concern among cancer survivors. Areas of concern differed by cancer type. Prostate cancer survivors were most concerned about being able to satisfy their partners (57 %) while breast cancer survivors were most concerned with changes in how their bodies worked sexually (46 %). Approximately 35 % of all cancer survivors wanted more information about sexual health. Sexual health concerns and unmet information needs are common among breast and prostate cancer survivors, varying in some aspects by type of cancer. Routine screening for sexual health concerns should be included in comprehensive cancer survivorship care to appropriately address health care needs. The InSYNC questionnaire is one tool that may help clinicians identify concerns facing their patients.


Asunto(s)
Neoplasias de la Mama/psicología , Supervivientes de Cáncer/psicología , Necesidades y Demandas de Servicios de Salud , Neoplasias de la Próstata/psicología , Calidad de Vida , Conducta Sexual/psicología , Salud Sexual , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Neoplasias de la Próstata/epidemiología , Apoyo Social , Encuestas y Cuestionarios , Estados Unidos/epidemiología
13.
J Pediatr Oncol Nurs ; 32(2): 96-102, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25612836

RESUMEN

The challenge of providing high-quality, relevant, time-sensitive continuing nursing education is particularly salient in pediatric oncology, where nurses commonly deliver complex protocol-based care to children enrolled on clinical trials. The Children's Oncology Group Nursing Discipline developed Portable Document Format multimedia modules to make a broad range of educational content regarding pediatric oncology clinical trials available to its membership. This time-sensitive educational content is accessible to nurses via asynchronous online education. To assess awareness of and user experience with the multimedia modules, a survey was conducted of nurses attending a Children's Oncology Group meeting. Over half (57%) of nurses were aware of the modules and half of those (51%) had viewed at least 1 module. Over 90% of nurses who viewed the modules were satisfied or very satisfied with the viewing experience; nurses younger than age 40 were 4 times more likely to be unaware of the modules than were older nurses (P = .007).


Asunto(s)
Ensayos Clínicos como Asunto , Instrucción por Computador , Internet , Personal de Enfermería/educación , Enfermería Oncológica/educación , Enfermería Pediátrica/educación , Adolescente , Adulto , Niño , Educación Continua en Enfermería , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estados Unidos
14.
Pediatr Blood Cancer ; 61(10): 1846-51, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24976622

RESUMEN

BACKGROUND: A high proportion of pediatric cancer patients are now surviving into adulthood, but are at increased risk for late morbidity and premature mortality related to their diagnosis and therapeutic exposures. Little is known about the potential success of recruiting adult survivors of childhood cancer into research projects that would require a risk-based health evaluation within a clinical setting. PROCEDURES: Pediatric cancer survivors and siblings eligible for the current study were Childhood Cancer Survivor Study participants who lived within 100 miles of one of five Consortium for Pediatric Intervention Research institutions, regardless of where they were initially diagnosed and treated. A short survey was mailed to 829 survivors and 373 siblings to identify factors that predict interest, potential barriers, and motivators, to participation in research including a risk-based clinical evaluation. RESULTS: Overall, 92% of survivors responding to the survey were very interested/interested in participating in a research study requiring a visit to a local hospital clinic. Siblings of survivors were less interested than survivors in participating in such a study, with only 78% indicating that they were very interested/interested. Potential motivators to participation included visiting their treating hospital and receiving health information. The primary barrier to participation was related to taking time off from work. CONCLUSIONS: This study demonstrates that a subgroup of survivors would be willing to return to a long-term follow-up center to participate in intervention-based research. Identified motivating factors and perceived barriers need to be considered in determining the feasibility, design and execution of future research.


Asunto(s)
Motivación , Neoplasias , Selección de Paciente , Sobrevivientes/psicología , Adulto , Edad de Inicio , Niño , Estudios de Cohortes , Recolección de Datos , Femenino , Humanos , Masculino , Hermanos
15.
J Clin Oncol ; 31(9): 1239-47, 2013 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-23382474

RESUMEN

PURPOSE: As more young female patients with cancer survive their primary disease, concerns about reproductive health related to primary therapy gain relevance. Cancer therapy can often affect reproductive organs, leading to impaired pubertal development, hormonal regulation, fertility, and sexual function, affecting quality of life. METHODS: The Children's Oncology Group Long-Term Follow-Up Guidelines for Survivors of Childhood, Adolescent, and Young Adult Cancer (COG-LTFU Guidelines) are evidence-based recommendations for screening and management of late effects of therapeutic exposures. The guidelines are updated every 2 years by a multidisciplinary panel based on current literature review and expert consensus. RESULTS: This review summarizes the current task force recommendations for the assessment and management of female reproductive complications after treatment for childhood, adolescent, and young adult cancers. Experimental pretreatment as well as post-treatment fertility preservation strategies, including barriers and ethical considerations, which are not included in the COG-LTFU Guidelines, are also discussed. CONCLUSION: Ongoing research will continue to inform COG-LTFU Guideline recommendations for follow-up care of female survivors of childhood cancer to improve their health and quality of life.


Asunto(s)
Trastornos Gonadales/diagnóstico , Trastornos Gonadales/terapia , Neoplasias/terapia , Guías de Práctica Clínica como Asunto , Salud Reproductiva , Adolescente , Cuidados Posteriores , Niño , Ética Médica , Femenino , Humanos , Hipogonadismo/diagnóstico , Hipogonadismo/etiología , Hipogonadismo/terapia , Infertilidad Femenina/diagnóstico , Infertilidad Femenina/etiología , Infertilidad Femenina/terapia , Pubertad Precoz/diagnóstico , Pubertad Precoz/tratamiento farmacológico , Pubertad Precoz/etiología , Calidad de Vida , Disfunciones Sexuales Fisiológicas/diagnóstico , Disfunciones Sexuales Fisiológicas/etiología , Disfunciones Sexuales Fisiológicas/terapia , Adulto Joven
16.
Pediatr Blood Cancer ; 60(6): 1031-6, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23255369

RESUMEN

Integration of the nursing discipline within cooperative groups conducting pediatric oncology clinical trials provides unique opportunities to maximize nursing's contribution to clinical care, and to pursue research questions that extend beyond cure of disease to address important gaps in knowledge surrounding the illness experience. Key areas of importance to the advancement of the nursing discipline's scientific knowledge are understanding the effective delivery of patient/family education, and reducing illness-related distress, both of which are integral to facilitating parental/child coping with the diagnosis and treatment of childhood cancer, and to promoting resilience and well-being of pediatric oncology patients and their families.


Asunto(s)
Neoplasias/enfermería , Enfermería Oncológica , Niño , Humanos , Investigación
17.
Psychooncology ; 19(8): 814-22, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19862693

RESUMEN

BACKGROUND: Studies of sexuality or sexual behavior in childhood cancer survivors tend to examine relationships or achievement of developmental milestones but not physiological response to cancer or treatment. The purpose of this study is to (1) identify prevalence and risk factors for sexual dysfunction in childhood cancer survivors, and (2) examine the extent to which sexual dysfunction may be associated with health-related quality of life (HRQOL) and psychosocial outcomes. METHODS: Five hundred ninety-nine survivors age 18-39 years completed standardized measures of sexual functioning, HRQOL, psychological distress and life satisfaction. Descriptive statistics assessed prevalence of sexual symptoms. Bivariate analyses identified correlates of sexual symptoms and examined associations between symptoms and HRQOL/psychosocial outcomes. RESULTS: Most survivors appear to be doing well, although 52% of female survivors and 32% of male survivors reported at least 'a little of a problem' in one or more areas of sexual functioning. Mean symptom score for females was more than twice that of males. Sexual symptoms were associated with reporting health problems. Significant associations between sexual functioning and HRQOL outcomes were observed, with gender differences in strengths of association suggesting that males find sexual symptoms more distressing than do females. CONCLUSIONS: While most survivors appear to be doing well in this important life domain, some young adult survivors report sexual concerns. While female survivors may report more sexual symptoms than male survivors, males may experience more distress associated with sexual difficulties. Better-specified measures of sexual function, behavior and outcomes are needed for this young adult population.


Asunto(s)
Neoplasias/psicología , Conducta Sexual , Disfunciones Sexuales Fisiológicas/psicología , Sobrevivientes/psicología , Adaptación Psicológica , Adolescente , Adulto , Niño , Estudios Transversales , Femenino , Humanos , Masculino , Calidad de Vida/psicología , Factores Sexuales , Disfunciones Sexuales Fisiológicas/diagnóstico , Disfunciones Sexuales Fisiológicas/epidemiología , Adulto Joven
18.
J Peripher Nerv Syst ; 14(3): 184-9, 2009 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-19909482

RESUMEN

Acute lymphoblastic leukemia (ALL) is the most common form of cancer in children. Recent advances in treatment have led to dramatically improved survival rates. Standard ALL treatment includes multiple administrations of the chemotherapeutic drug vincristine, which is a known neurotoxic agent. Although peripheral neuropathy is a well-known toxicity among children receiving vincristine acutely, the long-term effects on the peripheral nervous system in these children are not clear. The objective of this study was to determine the prevalence of neuropathy and its impact on motor function and quality of life (QOL) among children who survived ALL. Thirty-seven survivors of childhood ALL aged 8-18 underwent evaluation for neuropathy through self-reported symptoms, standardized examinations, and nerve conduction studies (NCS). Functional impact of neuropathy was assessed using the Bruininks-Oseretsky test of Motor Proficiency (BOT-2). QOL was assessed using the PedsQL. Nerve conduction study abnormalities were seen in 29.7% of children who were longer than 2 years off therapy for ALL. Most children with an abnormal examination or NCS did not have subjective symptoms. Although overall motor function was below population norms on the BOT-2, presence of neuropathy did not significantly correlate with motor functional status or QOL.


Asunto(s)
Antineoplásicos/efectos adversos , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/epidemiología , Sobrevivientes/estadística & datos numéricos , Vincristina/efectos adversos , Adolescente , Niño , Electrofisiología , Humanos , Destreza Motora/efectos de los fármacos , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamiento farmacológico , Prevalencia , Calidad de Vida
19.
Urology ; 69(1): 123-5, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17270632

RESUMEN

OBJECTIVES: With the increased use of prostate-specific antigen screening, younger men are being diagnosed with prostate cancer. A subset of these men is still interested in potentially having children after cancer treatment. To our knowledge, the topic of future fertility in patients with newly diagnosed prostate cancer has not previously been reported. METHODS: The charts of 8 patients with prostate cancer who were interested in future fertility before treatment were retrospectively reviewed. Preceding definitive treatment, the men underwent fertility counseling and were counseled to preserve semen before treatment. RESULTS: All 8 patients decided to have their semen stored using cryopreservation before their operation. After undergoing radical prostatectomy, one of the patients and his wife underwent successful intrauterine insemination and bore a child. CONCLUSIONS: A subset of men, regardless of age, diagnosed with prostate cancer will be interested in preserving their fertility for the future. Fertility options and potential counseling should be part of the routine pretreatment appointments in men undergoing treatment of prostate cancer.


Asunto(s)
Consejo , Fertilidad , Neoplasias de la Próstata/cirugía , Adulto , Factores de Edad , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
20.
Clin J Oncol Nurs ; 8(2): 127-31, 145, 2004 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-15108413

RESUMEN

An innovative program jointly sponsored by members of the departments of obstetrics and urology and the Comprehensive Cancer Center at the University of Michigan began in 2002. The Fertility Counseling and Gamete Cryopreservation Program (FCGCP) was created to provide counseling and education about therapy-induced infertility to newly diagnosed patients with cancer as well as facilitating the semen cryopreservation process. Unlike most sperm banking facilities in this country, this program is coordinated by an oncology nurse practitioner whose understanding of cancer and cancer treatments provides patients and staff with a unique perspective. Oncology staff misconceptions about sperm banking were addressed through intensive staff education programs. Patient education materials covering all aspects of infertility and sperm banking were developed and made available in patient care areas and on the Internet. Material aimed at young adolescents and their parents is prominent. Developmentally appropriate discussions are held with adolescent patients and their parents, both individually and together. Communication among patients and their families, the oncology team, and the sperm bank is maintained, permitting efficient and timely service. FCGCP provides an important service by affording all males with cancer the potential to father a child in the future.


Asunto(s)
Consejo , Criopreservación , Infertilidad Masculina/etiología , Neoplasias/complicaciones , Preservación de Semen , Humanos , Masculino , Planificación de Atención al Paciente
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