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1.
BMC Cancer ; 15: 430, 2015 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-26008690

RESUMEN

BACKGROUND: Acute myeloid leukemia (AML) is predominantly a disease of older patients with a poor long-term survival. Approval of decitabine (DAC) in the European Union (EU) in 2012 for the treatment of patients with AML ≥65 years marks the potential for hypomethylating agents in elderly AML. Nevertheless the situation is dissatisfactory and the quest for novel treatment approaches, including combination epigenetic therapy is actively ongoing. The given randomized trial should be helpful in investigating the question whether combinations of DAC with the histone deacetylase (HDAC) inhibitor valproic acid (VPA) and/or all-trans retinoic acid (ATRA), which in vitro show a very promising synergism, are superior to the DAC monotherapy. The accompanying translational research project will contribute to find surrogate molecular end points for drug efficacy and better tailor epigenetic therapy. An additional aim of the study is to investigate the prognostic value of geriatric assessments for elderly AML patients treated non-intensively. METHODS/DESIGN: DECIDER is a prospective, randomized, observer blind, parallel group, multicenter, Phase II study with a 2x2 factorial design. The primary endpoint is objective best overall response (complete remission (CR) and partial remission (PR)). The target population is AML patients aged 60 years or older and unfit for standard induction chemotherapy. Patients are randomized to one of the four treatment groups: DAC alone or in combination with VPA or ATRA or with both add-on drugs. One interim safety analysis was planned and carried out with the objective to stop early one or more of the treatment arms in case of an unacceptable death rate. This analysis showed that in all treatment arms the critical stopping rule was not reached. No important safety issues were observed. The Data Monitoring Committee (DMC) recommended continuing the study as planned. The first patient was included in December 2011. A total of 189 out of 200 planned patients were randomized since then (status 31.12.2014). TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT00867672 (registration date 23.03.2009); German clinical trials registry number: DRKS00000733 (registration date 19.04.2011).


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Protocolos Clínicos , Leucemia Mieloide Aguda/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Azacitidina/administración & dosificación , Azacitidina/análogos & derivados , Decitabina , Femenino , Humanos , Quimioterapia de Inducción , Masculino , Persona de Mediana Edad , Tretinoina/administración & dosificación , Ácido Valproico/administración & dosificación
2.
Cancer ; 117(16): 3788-95, 2011 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-21287538

RESUMEN

BACKGROUND: Patients irradiated for brain tumors often suffer from cerebral edema and are usually treated with dexamethasone, which has various side effects. To investigate the activity of Boswellia serrata (BS) in radiotherapy-related edema, we conducted a prospective, randomized, placebo-controlled, double-blind, pilot trial. METHODS: Forty-four patients with primary or secondary malignant cerebral tumors were randomly assigned to radiotherapy plus either BS 4200 mg/day or placebo. The volume of cerebral edema in the T2-weighted magnetic resonance imaging (MRI) sequence was analyzed as a primary endpoint. Secondary endpoints were toxicity, cognitive function, quality of life, and the need for antiedematous (dexamethasone) medication. Blood samples were taken to analyze the serum concentration of boswellic acids (AKBA and KBA). RESULTS: Compared with baseline and if measured immediately after the end of radiotherapy and BS/placebo treatment, a reduction of cerebral edema of >75% was found in 60% of patients receiving BS and in 26% of patients receiving placebo (P = .023). These findings may be based on an additional antitumor effect. There were no severe adverse events in either group. In the BS group, 6 patients reported minor gastrointestinal discomfort. BS did not have a significant impact on quality of life or cognitive function. The dexamethasone dose during radiotherapy in both groups was not statistically different. Boswellic acids could be detected in patients' serum. CONCLUSIONS: BS significantly reduced cerebral edema measured by MRI in the study population. BS could potentially be steroid-sparing for patients receiving brain irradiation. Our findings will need to be further validated in larger studies.


Asunto(s)
Antiinflamatorios no Esteroideos/uso terapéutico , Boswellia , Edema Encefálico/tratamiento farmacológico , Neoplasias Encefálicas/radioterapia , Triterpenos/uso terapéutico , Adulto , Anciano , Edema Encefálico/etiología , Neoplasias Encefálicas/complicaciones , Cognición/efectos de los fármacos , Supervivencia sin Enfermedad , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Fitoterapia/efectos adversos , Fitoterapia/métodos , Proyectos Piloto , Placebos , Calidad de Vida , Triterpenos/efectos adversos , Triterpenos/sangre
4.
Retina ; 30(2): 332-8, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20175274

RESUMEN

PURPOSE: To report clinical and epidemiologic findings of 11 patients with severe intraocular inflammation after intravitreal injection. METHODS: This is a single-center, retrospective, interventional case series of 11 patients with severe intraocular inflammation after intravitreal injection at 1 referral center. The clinical data of all patients (3,357) who underwent intravitreal injection between February 2007 and February 2008 were analyzed. All incidents of postoperative intraocular inflammatory reaction were documented. RESULTS: During the examination period, we identified 11 cases of intraocular inflammation after intravitreal injection. Only one thereof was infectious endophthalmitis with retinal abscess. All others were toxic vitreitis. Seven eyes exhibited hypopyon and five disseminated retinal hemorrhages. The toxic reaction occurred within 48 hours after injection, whereas in the endophthalmitis case, it occurred after 72 hours. We believe that the cause of this reaction was the particular syringe brand used. After changing to another syringe brand, no further cases of toxic vitreitis occurred during the next 6 months. CONCLUSION: Toxic inflammatory reaction is not only a complication of cataract surgery, but may also occur after intravitreal injection. A critical review of all processes involved and materials used would help to prevent further cases of toxic vitreitis.


Asunto(s)
Brotes de Enfermedades , Oftalmopatías/epidemiología , Oftalmopatías/etiología , Jeringas/efectos adversos , Cuerpo Vítreo/patología , Anciano , Anciano de 80 o más Años , Anticuerpos Monoclonales/administración & dosificación , Anticuerpos Monoclonales Humanizados , Bevacizumab , Oftalmopatías/diagnóstico , Femenino , Humanos , Inyecciones , Degeneración Macular/tratamiento farmacológico , Edema Macular/tratamiento farmacológico , Masculino , Ranibizumab , Hemorragia Retiniana/diagnóstico , Estudios Retrospectivos , Supuración/diagnóstico , Triamcinolona Acetonida/administración & dosificación
5.
J Clin Endocrinol Metab ; 92(11): 4115-22, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17711927

RESUMEN

BACKGROUND: Dosage of T(4) in central hypothyroidism is primarily guided by the free serum T(4) level (fT4). However, the optimum fT4 range is ill defined, and subtle hypothyroidism might be missed using this approach. OBJECTIVES: Our aim was to investigate the effects of a body weight (bw)-adapted T(4) treatment, alone or in combination with T(3), on metabolism, well-being, and cognitive function in comparison to a regimen leading to normal fT4. DESIGN: This was a placebo-controlled trial (double-blind, crossover). PATIENTS: A total of 29 patients (age 52 +/- 2 yr; females/males, 8/21) with hypopituitarism, including TSH deficiency, participated in the study. INTERVENTIONS: Three regimens were compared (5 wk each): "EMPIRICAL-T4," empirical T(4) dosage (1 +/- 0.05 microg/kg bw) leading to normal fT4; BW-ADAPTED-T4 (1.6 microg/kg bw T(4)); and "BW-ADAPTED-T3T4," bw-adapted combination of T(3) and T(4) (ratio of 1:10). RESULTS: BW-ADAPTED-T4 administration increased mean fT4 concentrations to the upper limit of the normal range (peak levels). Compared with EMPIRICAL-T4, BW-ADAPTED-T4 treatment resulted in a lower body mass index (BMI) (29.0 +/- 0.7 vs. 29.5 +/- 0.7 kg/m(2); P < 0.03), lower total cholesterol (198 +/- 9 vs. 226 +/- 7 mg/dl; P < 0.01), and lower low-density lipoprotein (LDL) cholesterol (116 +/- 5 vs. 135 +/- 7 mg/dl; P < 0.01). BW-ADAPTED-T3T4 treatment was associated with additional beneficial effects on ankle reflex time and working memory but resulted in supraphysiological free serum T(3) (fT(3)) levels. LIMITATIONS: Long-term side effects may have been missed. CONCLUSIONS: Using a dose of 1.6 microg/kg bw improved markers commonly associated with central hypothyroidism. This suggests that T(4) dosage based on bw and aiming at fT4 in the upper reference range is superior to titration of T(4) aiming at middle normal fT4 concentrations in those patients.


Asunto(s)
Hipotiroidismo/tratamiento farmacológico , Hormonas Tiroideas/administración & dosificación , Hormonas Tiroideas/uso terapéutico , Tiroxina/administración & dosificación , Tiroxina/uso terapéutico , Triyodotironina/uso terapéutico , Adolescente , Adulto , Anciano , Peso Corporal/efectos de los fármacos , Cognición/fisiología , Estudios Cruzados , Método Doble Ciego , Combinación de Medicamentos , Femenino , Humanos , Hipotiroidismo/diagnóstico , Hipotiroidismo/psicología , Metabolismo de los Lípidos/efectos de los fármacos , Masculino , Persona de Mediana Edad , Músculo Esquelético/efectos de los fármacos , Hormonas Tiroideas/efectos adversos , Tiroxina/efectos adversos , Resultado del Tratamiento , Triyodotironina/efectos adversos , Triyodotironina/farmacocinética
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