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1.
BMC Health Serv Res ; 24(1): 751, 2024 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-38898441

RESUMO

BACKGROUND: Current research suggests that people with attention deficit hyperactivity disorder (ADHD) are at higher risk of physical and mental health disorders. This study aimed to explore these health risks in ADHD from the perspectives of multiple stakeholders. METHODS: This study forms part of the 'Managing young people with ADHD in Primary care (MAP) study'. A survey developed by the study team was distributed to over 16 year olds with ADHD, their supporters, primary healthcare professionals and health commissioners across England, via social media and through patient/clinical networks (September-October 2022). This survey contained two questions on health risks. Question one asked about views on health risks in ADHD (free text). Question two asked about advice given (options list and free text). Descriptive statistics summarised responses to questions one and two, and qualitative analysis (reflexive thematic analysis) was used to explore free text responses from question one. RESULTS: 782 participants responded to the MAP survey. Of these, 206 healthcare professionals, 157 people with ADHD and 88 supporters answered question one. The most mentioned perceived risks were substance misuse, sleep disorders, weight management and smoking. More people with ADHD reported disordered eating as a health risk (n = 32) than healthcare professionals (n = 5). Generated themes included perceived health risks, impact of living with ADHD, lack of adequate healthcare, and need for ADHD awareness. In respect to advice given (question two), based on responses from 258 professionals, 162 people with ADHD and 100 supporters, the most common advice discussed in consultation was mental health (n = 149, n = 50 and n = 17 respectively). High numbers of respondents reported not giving/receiving advice on wider health (n = 38, n = 88 and n = 61 respectively). CONCLUSIONS: Findings demonstrate that respondents perceived a range of physical and mental health risks posed by ADHD. These related to difficulties with activities of daily living, as well as healthcare interactions and the impact of core features of ADHD (e.g. impulsivity, emotional dysregulation). These risks are not currently explicitly addressed in United Kingdom national guidance on ADHD. More work is needed to examine and address the broader health outcomes of people with ADHD.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Atenção Primária à Saúde , Humanos , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Inglaterra/epidemiologia , Masculino , Feminino , Adolescente , Inquéritos e Questionários , Adulto , Pessoal de Saúde/psicologia , Pessoal de Saúde/estatística & dados numéricos , Pessoa de Meia-Idade , Adulto Jovem
2.
AJR Am J Roentgenol ; 221(2): 228-239, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-36919879

RESUMO

BACKGROUND. PET/CT with 18F-fluoroestradiol (FES) (FDA-approved in 2020) depicts tissues expressing estrogen receptor (ER). Invasive lobular carcinoma (ILC) is commonly ER positive. OBJECTIVE. The primary aim of this study was to assess the frequency with which sites of histologically proven ILC have abnormal uptake on FES PET/CT. METHODS. This prospective single-center pilot study, conducted from December 2020 to August 2021, enrolled patients with histologically confirmed ILC to undergo FES PET/CT; patients optionally underwent FDG PET/CT. Two nuclear radiologists assessed FES PET/CT and FDG PET/CT studies for abnormal uptake corresponding to known ILC sites at enrollment and for additional sites of abnormal uptake, resolving differences by consensus. The primary endpoint was percentage of known ILC sites showing abnormal FES uptake. The alternative to the null hypothesis was that more than 60% of sites would have abnormal FES uptake, exceeding the percentage of ILC with abnormal FDG uptake described in prior literature. A sample size of 24 biopsied lesions was preselected to provide 81% power for the alternative hypothesis (one-sided α = .10). Findings on FES PET/CT and FDG PET/CT were summarized for additional secondary endpoints. RESULTS. The final analysis included 17 patients (mean age, 59.1 ± 13.2 years) with 25 sites of histologically confirmed ILC at enrollment (22 breast lesions, two axillary lymph nodes, one distant metastasis). FES PET/CT showed abnormal uptake in 22 of 25 (88%) lesions, sufficient to reject the null hypothesis (p = .002). Thirteen patients underwent FDG PET/CT. Four of 23 (17%) sites of histologically confirmed ILC, including additional sites detected and confirmed after enrollment, were identified with FES PET/CT only, and 1 of 23 (4%) was identified only with FDG PET/CT (p = .18). FES PET/CT depicted additional lesions not detected with standard-of-care evaluation in 4 of 17 (24%) patients (two contralateral breast cancers and two metastatic axillary lymph nodes, all with subsequent histologic confirmation). Use of FES PET/CT resulted in changes in clinical stage with respect to standard-of-care evaluation in 3 of 17 (18%) patients. CONCLUSION. The primary endpoint of the trial was met. The frequency of abnormal FES uptake among sites of histologically known ILC was found to be to be significantly greater than 60%. CLINICAL IMPACT. This pilot study shows a potential role of FES PET/CT in evaluation of patients with ILC. TRIAL REGISTRATION. ClinicalTrials.gov NCT04252859.


Assuntos
Neoplasias da Mama , Carcinoma Lobular , Humanos , Pessoa de Meia-Idade , Idoso , Feminino , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Carcinoma Lobular/diagnóstico por imagem , Carcinoma Lobular/patologia , Projetos Piloto , Fluordesoxiglucose F18 , Estudos Prospectivos , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/patologia , Tomografia por Emissão de Pósitrons/métodos , Estradiol
3.
J Natl Compr Canc Netw ; 20(6): 691-722, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35714673

RESUMO

The therapeutic options for patients with noninvasive or invasive breast cancer are complex and varied. These NCCN Clinical Practice Guidelines for Breast Cancer include recommendations for clinical management of patients with carcinoma in situ, invasive breast cancer, Paget disease, phyllodes tumor, inflammatory breast cancer, and management of breast cancer during pregnancy. The content featured in this issue focuses on the recommendations for overall management of ductal carcinoma in situ and the workup and locoregional management of early stage invasive breast cancer. For the full version of the NCCN Guidelines for Breast Cancer, visit NCCN.org.


Assuntos
Neoplasias da Mama , Carcinoma Intraductal não Infiltrante , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/terapia , Carcinoma Intraductal não Infiltrante/terapia , Feminino , Humanos , Oncologia
4.
BMC Cancer ; 21(1): 510, 2021 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-33957901

RESUMO

BACKGROUND: Disulfiram and metals inactivate key oncoproteins resulting in anti-neoplastic activity. The goal of this study was to determine the maximum tolerated dose of copper when administered with disulfiram in patients with advanced solid tumors and liver involvement. METHODS: Disulfiram 250 mg was administered daily in 28-day cycles. Four doses of copper gluconate were tested (2, 4, 6, and 8 mg of elemental copper) in a standard 3 + 3 dose escalation design. Patients were evaluated for dose limiting toxicities and response. Protein S-glutathionylation was evaluated as a pharmacodynamic marker. RESULTS: Twenty-one patients were enrolled and 16 patients were evaluable for dose limiting toxicities. Among the 21 patients, there was a median of 4 lines of prior chemotherapy. Five Grade 3 toxicities were observed (anorexia, elevated aspartate aminotransferase or AST, elevated alkaline phosphatase, fever, and fatigue). Response data was available for 15 patients. Four patients had stable disease with the longest duration of disease control being 116 days. The median duration of treatment for evaluable patients was 55 days (range 28-124). Reasons for discontinuation included functional decline, disease progression, and disease-associated death. Increased S-glutathionylation of serum proteins was observed with treatment. CONCLUSION: Disulfiram 250 mg daily with copper gluconate (8 mg of elemental copper) was well-tolerated in patients with solid tumors involving the liver and was not associated with dose limiting toxicities. While temporary disease stabilization was noted in some patients, no objective responses were observed. Treatment was associated with an increase in S-glutathionylation suggesting that this combination could exert a suppressive effect on cellular growth and protein function. TRIAL REGISTRATION: NCT00742911 , first posted 28/08/2008.


Assuntos
Dissulfiram/administração & dosagem , Gluconatos/administração & dosagem , Glutationa/metabolismo , Neoplasias Hepáticas/secundário , Neoplasias/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Dissulfiram/efeitos adversos , Relação Dose-Resposta a Droga , Feminino , Gluconatos/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/metabolismo
5.
J Natl Compr Canc Netw ; 19(5): 484-493, 2021 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-34794122

RESUMO

The NCCN Guidelines for Breast Cancer include up-to-date guidelines for clinical management of patients with carcinoma in situ, invasive breast cancer, Paget disease, phyllodes tumor, inflammatory breast cancer, male breast cancer, and breast cancer during pregnancy. These guidelines are developed by a multidisciplinary panel of representatives from NCCN Member Institutions with breast cancer-focused expertise in the fields of medical oncology, surgical oncology, radiation oncology, pathology, reconstructive surgery, and patient advocacy. These NCCN Guidelines Insights focus on the most recent updates to recommendations for adjuvant systemic therapy in patients with nonmetastatic, early-stage, hormone receptor-positive, HER2-negative breast cancer.


Assuntos
Neoplasias da Mama , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/terapia , Terapia Combinada , Humanos , Masculino , Oncologia
6.
Oncologist ; 25(11): e1655-e1662, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32701199

RESUMO

LESSONS LEARNED: The results from the liposarcoma cohort of SARC024 confirm previously published data and do not support the routine use of regorafenib in this patient population. Continued exploration of novel therapies, including combination approaches, is warranted for a patient population in whom limited treatment options exist. BACKGROUND: Regorafenib is a multitargeted kinase inhibitor with a kinase profile overlapping, but distinct from, pazopanib, an agent approved for recurrent and metastatic non-gastrointestinal stromal tumor (GIST), non-adipocytic soft tissue sarcoma. We conducted a randomized, phase II study of regorafenib versus placebo in refractory liposarcoma patients. METHODS: Patients with advanced or metastatic, treatment-refractory liposarcoma were randomized 1:1 to receive regorafenib 160 mg or placebo once daily (3 weeks on, 1 week off). Patients with well-differentiated liposarcoma only were excluded. Crossover for placebo was allowed upon progression. The primary endpoint was progression-free survival (PFS), according to RECIST version 1.1. RESULTS: Forty-eight subjects with liposarcoma (34 dedifferentiated, 12 myxoid/round cell, 2 pleomorphic) were enrolled. Median PFS was 1.87 (95% confidence interval [CI], 0.92-3.67) months for regorafenib versus 2.07 (95% CI, 1.64-3.44) months for placebo; stratified hazard ratio [HR], 0.85 (95% CI, 0.46, 1.58), p = .62. No responses were seen on regorafenib. One PR was observed on placebo. Median overall survival was 6.46 (95% CI, 4.16-23.48) months for regorafenib and 4.89 (95% CI, 3.02-9.77) months for placebo, stratified HR, 0.66 (95% CI, 0.31-1.40), p = .28). Treatment-related adverse events were similar to the known safety profile of regorafenib. CONCLUSION: Regorafenib did not appear to improve PFS in treatment-refractory liposarcoma. No new significant safety signals were observed.


Assuntos
Lipossarcoma , Compostos de Fenilureia , Piridinas , Adulto , Idoso , Método Duplo-Cego , Feminino , Humanos , Lipossarcoma/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Compostos de Fenilureia/uso terapêutico , Inibidores de Proteínas Quinases , Piridinas/uso terapêutico , Resultado do Tratamento
7.
J Natl Compr Canc Netw ; 18(4): 452-478, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32259783

RESUMO

Several new systemic therapy options have become available for patients with metastatic breast cancer, which have led to improvements in survival. In addition to patient and clinical factors, the treatment selection primarily depends on the tumor biology (hormone-receptor status and HER2-status). The NCCN Guidelines specific to the workup and treatment of patients with recurrent/stage IV breast cancer are discussed in this article.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Neoplasias da Mama/etiologia , Neoplasias da Mama/mortalidade , Tomada de Decisão Clínica , Gerenciamento Clínico , Suscetibilidade a Doenças , Feminino , Humanos , Metástase Neoplásica , Estadiamento de Neoplasias , Recidiva
8.
J Natl Compr Canc Netw ; 17(5.5): 552-555, 2019 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-31117035

RESUMO

Advances in molecular testing have ushered in the new era of precision medicine. The 2018 publication of the TAILORx trial helped refine the use of genetic expression assays, specifically the 21-gene recurrence score, in assigning patients to endocrine therapy alone or with chemotherapy. The NCCN Guidelines for Breast Cancer explore the clinical applications of this study. The algorithm for managing the axilla in early breast cancer has been further refined, based on the presence or absence of clinical evidence of lymph node involvement. Ovarian suppression has been validated as the optimal approach in higher risk premenopausal women, based on updated analysis of the SOFT and TEXT pivotal trials. In the metastatic setting, the NCCN Guidelines further reinforce the benefit of the CDK4/6 inhibitors, extending the "preferred" recommendation to all the available agents in metastatic disease. Options in triple-negative breast cancer now include, for the first time, an immunotherapeutic agent.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Biomarcadores Tumorais , Neoplasias da Mama/genética , Tomada de Decisão Clínica , Terapia Combinada/efeitos adversos , Terapia Combinada/métodos , Terapia Combinada/normas , Gerenciamento Clínico , Feminino , Testes Genéticos/métodos , Testes Genéticos/normas , Humanos
9.
J Natl Compr Canc Netw ; 17(2): 118-126, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30787125

RESUMO

These NCCN Guidelines Insights highlight the updated recommendations for use of multigene assays to guide decisions on adjuvant systemic chemotherapy therapy for women with hormone receptor-positive, HER2-negative early-stage invasive breast cancer. This report summarizes these updates and discusses the rationale behind them.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Neoplasias da Mama/etiologia , Feminino , Humanos
10.
J Natl Compr Canc Netw ; 16(3): 310-320, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29523670

RESUMO

Ductal carcinoma in situ (DCIS) of the breast represents a heterogeneous group of neoplastic lesions in the breast ducts. The goal for management of DCIS is to prevent the development of invasive breast cancer. This manuscript focuses on the NCCN Guidelines Panel recommendations for the workup, primary treatment, risk reduction strategies, and surveillance specific to DCIS.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Neoplasias da Mama/etiologia , Carcinoma Ductal de Mama/diagnóstico , Carcinoma Ductal de Mama/etiologia , Carcinoma Ductal de Mama/terapia , Carcinoma Intraductal não Infiltrante/diagnóstico , Carcinoma Intraductal não Infiltrante/etiologia , Carcinoma Intraductal não Infiltrante/terapia , Terapia Combinada , Gerenciamento Clínico , Feminino , Humanos , Retratamento , Resultado do Tratamento , Conduta Expectante
11.
Br J Haematol ; 198(5): 802, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35802037

Assuntos
Hematologia , Humanos
12.
J Natl Compr Canc Netw ; 15(4): 433-451, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28404755

RESUMO

These NCCN Guidelines Insights highlight the important updates/changes to the surgical axillary staging, radiation therapy, and systemic therapy recommendations for hormone receptor-positive disease in the 1.2017 version of the NCCN Guidelines for Breast Cancer. This report summarizes these updates and discusses the rationale behind them. Updates on new drug approvals, not available at press time, can be found in the most recent version of these guidelines at NCCN.org.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Axila , Terapia Combinada/métodos , Gerenciamento Clínico , Feminino , Humanos , Estadiamento de Neoplasias , Biópsia de Linfonodo Sentinela
13.
J Natl Compr Canc Netw ; 14(3): 324-54, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26957618

RESUMO

Breast cancer is the most common malignancy in women in the United States and is second only to lung cancer as a cause of cancer death. The overall management of breast cancer includes the treatment of local disease with surgery, radiation therapy, or both, and the treatment of systemic disease with cytotoxic chemotherapy, endocrine therapy, biologic therapy, or combinations of these. This article outlines the NCCN Guidelines specific to breast cancer that is locoregional (restricted to one region of the body), and discusses the management of clinical stage I, II, and IIIA (T3N1M0) tumors. For NCCN Guidelines on systemic adjuvant therapy after locoregional management of clinical stage I, II and IIIA (T3N1M0) and for management for other clinical stages of breast cancer, see the complete version of these guidelines at NCCN.org.


Assuntos
Neoplasias da Mama/patologia , Neoplasias da Mama/terapia , Quimioterapia Adjuvante/efeitos adversos , Terapia Combinada , Feminino , Fertilidade/efeitos dos fármacos , Preservação da Fertilidade , Humanos , Mamoplastia/métodos , Mastectomia/métodos , Invasividade Neoplásica , Estadiamento de Neoplasias , Radioterapia Adjuvante/efeitos adversos , Estados Unidos
14.
J Natl Compr Canc Netw ; 13(12): 1475-85, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26656517

RESUMO

These NCCN Guideline Insights highlight the important updates to the systemic therapy recommendations in the 2016 NCCN Guidelines for Breast Cancer. In the most recent version of these guidelines, the NCCN Breast Cancer Panel included a new section on the principles of preoperative systemic therapy. In addition, based on new evidence, the panel updated systemic therapy recommendations for women with hormone receptor-positive breast cancer in the adjuvant and metastatic disease settings and for patients with HER2-positive metastatic breast cancer. This report summarizes these recent updates and discusses the rationale behind them.


Assuntos
Neoplasias da Mama/terapia , Feminino , Humanos
15.
J Natl Compr Canc Netw ; 13(4): 448-75, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25870381

RESUMO

Breast cancer is the most common malignancy in women in the United States and is second only to lung cancer as a cause of cancer death. The overall management of breast cancer includes the treatment of local disease with surgery, radiation therapy, or both, and the treatment of systemic disease with cytotoxic chemotherapy, endocrine therapy, biologic therapy, or combinations of these. This portion of the NCCN Guidelines discusses recommendations specific to the locoregional management of clinical stage I, II, and IIIA (T3N1M0) tumors.


Assuntos
Neoplasias da Mama/patologia , Neoplasias da Mama/terapia , Excisão de Linfonodo , Mastectomia , Axila , Neoplasias da Mama/diagnóstico , Feminino , Humanos , Mamoplastia , Mastectomia/métodos , Estadiamento de Neoplasias , Radioterapia
16.
J Natl Compr Canc Netw ; 13(7): 880-915, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26150582

RESUMO

Breast cancer is the most frequently diagnosed malignancy in women in the United States and is second only to lung cancer as a cause of cancer death. To assist women who are at increased risk of developing breast cancer and their physicians in the application of individualized strategies to reduce breast cancer risk, NCCN has developed these guidelines for breast cancer risk reduction.


Assuntos
Neoplasias da Mama/prevenção & controle , Comportamento de Redução do Risco , Feminino , Humanos , Fatores de Risco
17.
J Natl Compr Canc Netw ; 12(4): 542-90, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24717572

RESUMO

Breast cancer is the most common malignancy in women in the United States and is second only to lung cancer as a cause of cancer death. The overall management of breast cancer includes the treatment of local disease with surgery, radiation therapy, or both, and the treatment of systemic disease with cytotoxic chemotherapy, endocrine therapy, biologic therapy, or combinations of these. The NCCN Guidelines specific to management of large clinical stage II and III tumors are discussed in this article. These guidelines are the work of the members of the NCCN Breast Cancer Panel. Expert medical clinical judgment is required to apply these guidelines in the context of an individual patient to provide optimal care. Although not stated at every decision point of the guidelines, patient participation in prospective clinical trials is the preferred option of treatment for all stages of breast cancer.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Feminino , Humanos
19.
Mol Autism ; 14(1): 35, 2023 09 20.
Artigo em Inglês | MEDLINE | ID: mdl-37730651

RESUMO

BACKGROUND: The poorer physical health of autistic adults compared to non-autistic adults has been highlighted by several epidemiological studies. However, research has so far been limited to specific geographical areas and has primarily focused on young autistic individuals (aged 35 years and younger). Recent studies indicate a higher rate of mortality in autistic people, as well as poorer quality of self-reported healthcare interactions. This study aims to determine, first, whether autistic people experience greater levels of non-communicable health conditions and second, whether these are explained by differences in demographics (i.e. sex, country of residence, ethnicity, education level), alcohol use, smoking, body mass index (BMI), or family history of medical conditions. METHOD: We employed a cross-sectional, convenience-sampling study via an anonymous, online survey of autistic and non-autistic adults (n = 2305, mean age = 41.6, 65.9% female, 49% autistic). The survey asked participants to self-report information about their demographics, autism diagnosis, diet, exercise, sleep, sexual health, substance use, personal medical history, and family medical history (for all first-degree, biological relatives). Binomial logistic regression across four iterative models of increasing complexity was applied to assess rates of physical health conditions. The Benjamini-Hochberg correction was used to account for multiple testing, and only physical health conditions that achieved at least 1% endorsement within the overall sample (n > 22) were included in the analysis to reduce risk of Type I errors. We also used novel network analysis methods to test whether there are increased levels of multimorbidity between autistic and non-autistic people. RESULTS: There were significantly elevated rates of non-communicable conditions across all organ systems in autistic people, including gastrointestinal, neurological, endocrine, visual, ear/nose/throat, skin, liver and kidney, and haematological conditions. We confirmed previous findings by showing highly significant differences in rates of neurological and gastrointestinal symptoms (p < 0.0001). In addition, we established in the largest sample to date that Ehler-Danlos Syndrome (EDS) was more likely to occur among autistic females compared to non-autistic females. Finally, we found a higher prevalence of Coeliac's disease among autistic individuals compared to non-autistic individuals after controlling for sex, ethnicity, country of residence, alcohol use, smoking, and BMI, but these results became non-significant after accounting for family history. LIMITATIONS: Our study is biased towards females, white individuals, highly educated people, and UK residents, likely due to sampling biases. Our self-report study design may also exclude those who lack access to computers, or those with intellectual disability. Our network analysis is also limited in size. CONCLUSIONS: This study provides evidence of widespread, physical health comorbidity that spans nearly all major organ systems in autistic adults compared to non-autistic adults, using both binary logistic regression and network models. Healthcare professionals must be made aware of the range of co-occurring physical health conditions that may be more common among autistic people. However, our findings also point towards potential avenues requiring further exploration, such as the association of autism with both Coeliac's disease and EDS.


Assuntos
Transtorno Autístico , Humanos , Adolescente , Adulto , Feminino , Masculino , Estudos Transversais , Índice de Massa Corporal , Escolaridade , Exercício Físico
20.
Cancer Immunol Immunother ; 61(7): 1113-24, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22198309

RESUMO

Cancer survivors often relapse due to evolving drug-resistant clones and repopulating tumor stem cells. Our preclinical study demonstrated that terminal cancer patient's lymphocytes can be converted from tolerant bystanders in vivo into effective cytotoxic T-lymphocytes in vitro killing patient's own tumor cells containing drug-resistant clones and tumor stem cells. We designed a clinical trial combining peginterferon α-2b with imatinib for treatment of stage III/IV gastrointestinal stromal tumor (GIST) with the rational that peginterferon α-2b serves as danger signals to promote antitumor immunity while imatinib's effective tumor killing undermines tumor-induced tolerance and supply tumor-specific antigens in vivo without leukopenia, thus allowing for proper dendritic cell and cytotoxic T-lymphocyte differentiation toward Th1 response. Interim analysis of eight patients demonstrated significant induction of IFN-γ-producing-CD8(+), -CD4(+), -NK cell, and IFN-γ-producing-tumor-infiltrating-lymphocytes, signifying significant Th1 response and NK cell activation. After a median follow-up of 3.6 years, complete response (CR) + partial response (PR) = 100%, overall survival = 100%, one patient died of unrelated illness while in remission, six of seven evaluable patients are either in continuing PR/CR (5 patients) or have progression-free survival (PFS, 1 patient) exceeding the upper limit of the 95% confidence level of the genotype-specific-PFS of the phase III imatinib-monotherapy (CALGB150105/SWOGS0033), demonstrating highly promising clinical outcomes. The current trial is closed in preparation for a larger future trial. We conclude that combination of targeted therapy and immunotherapy is safe and induced significant Th1 response and NK cell activation and demonstrated highly promising clinical efficacy in GIST, thus warranting development in other tumor types.


Assuntos
Neoplasias Gastrointestinais/terapia , Tumores do Estroma Gastrointestinal/terapia , Interferon-alfa/administração & dosagem , Piperazinas/administração & dosagem , Polietilenoglicóis/administração & dosagem , Pirimidinas/administração & dosagem , Idoso , Idoso de 80 Anos ou mais , Benzamidas , Intervalo Livre de Doença , Neoplasias Gastrointestinais/imunologia , Tumores do Estroma Gastrointestinal/imunologia , Humanos , Mesilato de Imatinib , Imunoterapia/métodos , Interferon alfa-2 , Interferon-alfa/imunologia , Interferon gama/biossíntese , Interferon gama/imunologia , Linfócitos/imunologia , Pessoa de Meia-Idade , Proteínas Recombinantes/administração & dosagem , Recidiva , Linfócitos T Citotóxicos/imunologia
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