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1.
J Cancer Res Clin Oncol ; 149(6): 2637-2645, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36181565

RESUMEN

PURPOSE: 2021 marks the tenth anniversary of the AMNOG process and brought with it a new German administration-two good reasons to take stock of where we stand today, what has been achieved so far, and how the path of early benefit assessments in Germany should continue. RESULTS: From the perspective of manufacturers of cancer drugs, the AMNOG process, as a constantly evolving system, has for the most part proved itself-which does not mean that there is no longer room for improvement. Significant improvements have been achieved in the area of early consultation of medical societies regarding the selection of the appropriate comparator therapy as well as in the reimbursement of biomarker diagnostic tests in the outpatient sector. However, there is still a need for improvement, especially in the areas of patient-relevant outcomes accepted by the G-BA, the inclusion of real-world data in evidence assessments, or the transfer of evidence from certain patient groups to others. CONCLUSION: The current AMNOG structures were developed for the most part at a time when no one saw immuno-oncology or gene and cell therapies coming, when there were no multi-tumor drug approvals, and when few imagined that within a few years, the established tumor entities would be broken down into dozens of sub-entities on the basis of molecular genetic markers. Society wants these and other advances, and the HTA process must, therefore, take this into account in a healthcare system based on solidarity.


Asunto(s)
Aprobación de Drogas , Neoplasias , Humanos , Neoplasias/terapia , Atención a la Salud , Resultado del Tratamiento , Alemania
2.
BMC Health Serv Res ; 22(1): 834, 2022 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-35765059

RESUMEN

BACKGROUND: The analysis of statutory health insurance (SHI) data is a little-used approach for understanding treatment and care as well as resource use of lung cancer (LC) patients in Germany. The aims of this observational, retrospective, longitudinal analysis of structured data were to analyze the healthcare situation of LC patients in Germany based on routine data from SHI funds, to develop an algorithm that sheds light on LC types (non-small cell / NSCLC vs. small cell / SCLC), and to gain new knowledge to improve needs-based care. METHODS: Anonymized billing data of approximately four million people with SHI were analyzed regarding ICD-10 (German modification), documented medical interventions based on the outpatient SHI Uniform Assessment Standard Tariff (EBM) or the inpatient Operations and Procedure Code (OPS), and the dispensing of prescription drugs to outpatients (ATC classification). The study included patients who were members of 64 SHI funds between Jan-1st, 2015 and Dec-31st, 2016 and who received the initial diagnosis of LC in 2015 and 2016. RESULTS: The analysis shows that neither the cancer type nor the cancer stage can be unambiguously described by the ICD-10 coding. Furthermore, an assignment based on the prescribed medication provides only limited information: many of the drugs are either approved for both LC types or are used off-label, making it difficult to assign them to a specific LC type. Overall, 25% of the LC patients were unambiguously identifiable as NSCLC vs SCLC based on the ICD-10 code, the drug therapy, and the billing data. CONCLUSIONS: The current coding system appears to be of limited suitability for drawing conclusions about LC and therefore the SHI patient population. This makes it difficult to analyze the healthcare data with the aim of gathering new knowledge to improve needs-based care. The approach chosen for this study did not allow for development of a LC differentiation algorithm based on the available healthcare data. However, a better overview of patient specific needs could make it possible to modify the range of services provided by the SHI funds. From this perspective, it makes sense, in a first step, to refine the ICD-10 system to facilitate NSCLC vs. SCLC classification.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Algoritmos , Carcinoma de Pulmón de Células no Pequeñas/diagnóstico , Carcinoma de Pulmón de Células no Pequeñas/terapia , Humanos , Estudios Longitudinales , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/terapia , Programas Nacionales de Salud , Estudios Retrospectivos
3.
Leukemia ; 36(3): 772-780, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34628472

RESUMEN

To evaluate patterns of rrHL after contemporary first-line treatment we studied 409 patients with first rrHL (HD13: n = 87, HD14: n = 118, HD15: n = 188, HDR3i: n = 51) at a median age of 37.4 years (18.4-76.8) from the GHSG database. Time to first relapse was ≤12 months in 49% and stage III/IV rrHL present in 52% of patients. In total, 291 patients received high-dose chemotherapy and autologous stem-cell transplantation (ASCT) and intended ASCT failed in 38 patients. ASCT was primarily not intended in 80 patients largely due to low risk disease or age/comorbidities. Overall, 10-year progression-free (PFS) and overall survival (OS) rates after first relapse were 48.2% (95% CI 41.9-54.2%) and 59.4% (95% CI 53.0-65.2%), respectively, with significant differences between subgroups. Inferior survival was observed with no ASCT due to advanced age/comorbidities (five-year PFS 36.2%, 95% CI 17.7-55.0%) or failure of salvage therapy (five-year PFS 36.3%, 95% CI 19.7-53.2%). Similarly, presence of primary refractory disease or stage IV at rrHL conferred inferior survival. In patients with low-risk disease, however, survival appeared favorable even without ASCT (10 y PFS 72.6%, 95% CI 53.7-84.8%). We herein confirm the curative potential of current rrHL treatments providing a robust benchmark to evaluate novel therapeutic strategies in rrHL. Approximately 50% of rrHL patients experienced a consecutive relapse.


Asunto(s)
Enfermedad de Hodgkin/terapia , Recurrencia Local de Neoplasia/terapia , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Terapia Combinada , Femenino , Alemania/epidemiología , Trasplante de Células Madre Hematopoyéticas , Enfermedad de Hodgkin/epidemiología , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/epidemiología , Supervivencia sin Progresión , Terapia Recuperativa , Trasplante Autólogo , Resultado del Tratamiento , Adulto Joven
4.
BMC Health Serv Res ; 18(1): 413, 2018 06 05.
Artículo en Inglés | MEDLINE | ID: mdl-29871676

RESUMEN

BACKGROUND: Concepts for the nursing and care of cancer patients through a "navigation service" have attracted much interest. However, there is still room for improvement in terms of their funding and coverage. The Saxon Cancer Society designed a prospective, randomized, multicenter, longitudinal study with a view to determining the positive effects of a cancer patient navigator program. The objective of this ongoing study is to evaluate the impact of the cancer patient navigation program on cancer patients and cost bearers in Germany. METHODS: The study population in this evaluation comprises cancer patients with gastric carcinoma, pancreatic carcinoma, colorectal cancer, melanoma or gynecological cancer who have been hospitalized at least once at one of the study centers as well as their relatives, outpatient and inpatient physicians, and cancer nurses. It is planned to randomize 340 cancer patients (stomach, colonic/rectal cancer, gynecological cancer, melanoma) at five centers to an intervention group (care by patient navigators based on standardized operating procedures) or a control group in a one-to-one ratio. The primary target parameter is the number of hospitalizations within the 12-month intervention period. The participants are asked to complete various questionnaires on patient-related outcomes at baseline and at 3 and 12 months (SF 36, HADS, PAM 13, and others). Data on drug therapy, utilization of health services, and medical expenses will also be analyzed. DISCUSSION: For the first time, the study will provide data on the effectiveness of a patient support program in cancer care in Germany from a randomized trial with a high level of evidence. TRIAL REGISTRATION: The study has been registered under DRKS00013199 in the German Clinical Trials Register.


Asunto(s)
Costos de la Atención en Salud/estadística & datos numéricos , Recursos en Salud/estadística & datos numéricos , Hospitalización/estadística & datos numéricos , Neoplasias/terapia , Navegación de Pacientes , Adulto , Alemania , Hospitalización/economía , Humanos , Estudios Longitudinales , Neoplasias/economía , Evaluación de Programas y Proyectos de Salud , Estudios Prospectivos , Proyectos de Investigación
5.
Oncologist ; 22(8): 951-962, 2017 08.
Artículo en Inglés | MEDLINE | ID: mdl-28526721

RESUMEN

BACKGROUND: There are limited real-world data on health care resource utilization (HCRU) among advanced melanoma patients. The objective of this study was to describe HCRU and health care costs associated with the management of advanced melanoma patients receiving ipilimumab. METHODS: This retrospective multinational, observational study included advanced melanoma patients from Australia, Germany, Italy, and Spain who had received at least 1 dose of ipilimumab. Data extracted from medical charts included inpatient admissions, outpatient visits, surgical procedures, laboratory investigations, radiation therapy, imaging studies, and concomitant medications. Cost estimates were based on unit costs from country-specific standard reimbursement sources. Subgroup analyses were performed for BRAF mutation status and ipilimumab refractory patients, who had disease progression within 24 weeks of their last dose of ipilimumab. RESULTS: Mean age of 362 enrolled patients was 60.6 years (standard deviation [SD] 14.4). During a median follow-up period of 30.2 weeks, 57% of patients were admitted to hospital and 16% underwent surgery. Health care resource utilization rates varied substantially across countries and were highest in Germany. Concomitant medications to treat adverse events were commonly used. Subgroup analyses showed higher utilization rates among ipilimumab refractory and BRAF mutant patients. Mean weekly total costs associated with HCRU were lower in the pre-progression period (€107; 95% confidence interval (CI): 79-145) than in the post-progression period (€216; 95% CI: 180-259). CONCLUSION: Health care resource utilization pattern and associated costs among patients treated with ipilimumab varied greatly among countries and between pre- and post-progression periods. There is a high economic burden associated with ipilimumab refractory melanoma. IMPLICATIONS FOR PRACTICE: Metastatic melanoma patients treated with the anti-CTLA-4 inhibitor ipilimumab have a high utilization of various types of health care services, such as inpatient hospital stays or doctor visits. There are differences across countries regarding patterns of health care utilization and economic burden of the disease. Health care services are used more frequently after patients experience progression of their disease. The study highlights that better therapies leading to durable response in patients with metastatic melanoma have the potential to decrease health care costs and patient burden in terms of hospitalizations and other health care services.


Asunto(s)
Costos de la Atención en Salud , Ipilimumab/uso terapéutico , Melanoma/tratamiento farmacológico , Neoplasias Primarias Secundarias/tratamiento farmacológico , Neoplasias Cutáneas/tratamiento farmacológico , Adulto , Supervivencia sin Enfermedad , Femenino , Hospitalización/economía , Humanos , Ipilimumab/economía , Masculino , Melanoma/economía , Melanoma/epidemiología , Melanoma/patología , Persona de Mediana Edad , Metástasis de la Neoplasia , Neoplasias Primarias Secundarias/economía , Neoplasias Primarias Secundarias/epidemiología , Neoplasias Primarias Secundarias/patología , Neoplasias Cutáneas/economía , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/patología , Melanoma Cutáneo Maligno
6.
Health Econ Rev ; 4(1): 2, 2014 Jan 24.
Artículo en Inglés | MEDLINE | ID: mdl-24460706

RESUMEN

UNLABELLED: The German AMNOG healthcare reform includes a mandatory early-benefit-assessment (EBA) at launch. As per German social code, EBA is based on registration trials and includes evaluation of the patient-relevant effect of the new medicines compared to an appropriate comparator as defined by the Federal Joint Committee (G-BA). Current EBA decisions released have unveiled issues regarding the acceptance of some patient-relevant endpoints as G-BA and IQWiG are grading the endpoints, focusing on overall survival as the preferred endpoint in oncology.A taskforce of experienced German outcomes research, medical, health-technology assessment and biostatistics researchers in industry was appointed. After agreement on core assumptions, a draft position was prepared. Input on iterative versions was solicited from a panel of reviewers from industry and external stakeholders.Distinctive features of registration trials in oncology need to be considered when these studies form basis for EBA, especially in cancer-indications with long post-progression survival; and with several consecutive therapeutic options available post-progression. Ethical committees, caregivers and patients often demand cross-over-designs diluting the treatment-effect on overall survival. Regulatory authorities require evaluation of morbidity-related study endpoints including survival of patients without their disease getting worse (i.e., progression-free survival). Also, progression requires treatment-changes, another strong indicator for its relevance to patients.Based on specific guidelines and clinical trial programs that were developed to be consistent with regulatory guidance, endpoints in oncology are thoroughly evaluated in terms of their patient-relevance. This extensive knowledge and experience should be fully acknowledged during EBA when assessing the patient-relevant benefit of innovative medicines in oncology. JEL CODES: D61; H51; I18.

7.
Infect Drug Resist ; 6: 15-25, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23386790

RESUMEN

BACKGROUND: Candida spp. are a frequent cause of nosocomial bloodstream infections worldwide. OBJECTIVE: To evaluate the use patterns and outcomes associated with intravenous (IV) fluconazole therapy in intensive care units in Spain and Germany. PATIENTS AND METHODS: The research reported here was a prospective multicenter longitudinal observational study in adult intensive care unit patients receiving IV fluconazole. Demographic, microbiologic, therapy success, length of hospital stay, adverse event, and all-cause mortality data were collected at 14 sites in Spain and five in Germany, from February 2004 to November 2005. RESULTS: Patients (n = 303) received prophylaxis (n = 29), empiric therapy (n = 140), preemptive therapy (n = 85), or definitive therapy (n = 49). A total of 298 patients (98.4%) were treated with IV fluconazole as first-line therapy. The treating physicians judged therapy successful in 66% of prophylactic, 55% of empiric, 45% of preemptive, and 43% of definitive group patients. In the subgroup of 152 patients with proven and specified Candida infection only, 32% suffered from Candida specified as potentially resistant to IV fluconazole. The overall mortality rate was 42%. CONCLUSION: Our study informs treatment decision makers that approximately 32% of the patients with microbiological results available suffered from Candida specified as potentially resistant to IV fluconazole, highlighting the importance of appropriate therapy.

8.
Eur J Med Res ; 17: 7, 2012 Apr 17.
Artículo en Inglés | MEDLINE | ID: mdl-22510390

RESUMEN

BACKGROUND: This study is a pre-planned country-specific subanalysis of results in Germany from a multinational multicenter registry to prospectively assess real-world experience with caspofungin administered for treatment of proven or probable invasive aspergillosis (IA). METHODS: Data from patients treated with caspofungin for a single episode of IA were collected. Effectiveness was determined by the local investigator as favorable (complete or partial response) or unfavorable (stable disease, failure or death) at the end of caspofungin therapy. Descriptive statistics with binomial exact confidence intervals were employed. RESULTS: Forty-two consecutive patients were identified in three German centers. Three patients (7%) had proven IA and 39/42 (93%) had probable IA (modified European Organization for Research and Treatment of Cancer/Mycosis Study Group (EORTC/MSG) criteria). Forty-one patients had pulmonary IA and one had tracheal IA. Caspofungin monotherapy was received by 36/42 patients (86%); of these, 26/36 (72%) received salvage therapy. A favorable response was observed in 29/42 patients (69%; 95% CI 53 to 82%); of these, 21/29 (72%) had a complete and 8/29 (28%) a partial response. Favorable response rate was 69% in patients with monotherapy (95% CI 52% to 84%; 25/36 patients), and 67% in patients receiving combination therapy (95% CI 22% to 96%; 4/6 patients). Favorable response rate in patients with first line therapy was 64% (95% CI 31% to 89%; 7/11 patients), and 73% in patients with second line therapy (95% CI 54% to 88%; 20/30 patients). No adverse events were reported. In total, 35/42 patients (83%; 95% CI 69 to 93%) survived seven days after completion of caspofungin therapy. CONCLUSIONS: These real-life findings in Germany are consistent with the international findings from this registry and with findings from randomized studies.


Asunto(s)
Antifúngicos/administración & dosificación , Equinocandinas/administración & dosificación , Aspergilosis Pulmonar Invasiva/tratamiento farmacológico , Adulto , Anciano , Aspergillus/patogenicidad , Caspofungina , Equinocandinas/efectos adversos , Alemania , Humanos , Aspergilosis Pulmonar Invasiva/patología , Lipopéptidos , Persona de Mediana Edad
9.
Ann Hematol ; 87(4): 311-9, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-17929018

RESUMEN

As antifungal agents are frequently used in hematology and oncology, economic data on the empirical therapy of suspected systemic fungal infection are pivotal. Data were analyzed according to: (1) the rate of nephrotoxicity related to treatment with caspofungin in comparison to liposomal amphotericin B (L-AmB) from a randomized clinical trial, (2) the effect of nephrotoxicity on length of hospital stay from a European observational study, and (3) an example of total bottom-up cost in a department of hematology in Germany. All estimates include 95% confidence intervals (CI) using two-stage Monte Carlo simulation on binominal and Gaussian random variables from separate studies with comparable populations. Overall, 8.9 (95% CI 5.9-12.1) fewer patients (of 100 randomized) experienced worsening of renal function with caspofungin vs L-AmB, giving a number needed to treat for one patient to be harmed by L-AmB of 12 (95% CI 8-17). This was estimated to translate into 5.3 extra days in hospital (95% CI 1.6-9.1) per event or 0.48 days (95% CI 0.14-0.88) worth 298 euro (95% CI 89-554) per patient receiving L-AmB rather than caspofungin. From the hospital perspective, use of caspofungin was estimated to be cost-neutral compared to L-AmB at a per diem total hospital cost of 428 euro with, and 1284 euro without, consideration of supplementary reimbursement (Zusatzentgelt) of both L-AmB and caspofungin. The data presented in this scenario show that use of caspofungin in hematology-oncology departments in Germany results in shorter hospital stays and is at least cost-neutral compared to use of L-AmB.


Asunto(s)
Anfotericina B/uso terapéutico , Antifúngicos/uso terapéutico , Equinocandinas/uso terapéutico , Micosis/tratamiento farmacológico , Anfotericina B/efectos adversos , Anfotericina B/economía , Antifúngicos/efectos adversos , Antifúngicos/economía , Caspofungina , Costos y Análisis de Costo , Método Doble Ciego , Equinocandinas/efectos adversos , Equinocandinas/economía , Alemania , Humanos , Lipopéptidos , Liposomas , Estudios Longitudinales , Micosis/prevención & control , Estudios Prospectivos
10.
Cancer Lett ; 219(2): 197-204, 2005 Mar 10.
Artículo en Inglés | MEDLINE | ID: mdl-15723720

RESUMEN

Deregulation of the cell-cycle G1-restriction point control via abnormalities of Rb-pathway components is a frequent event in the formation of cancer. The aim of this study was to evaluate numerical aberrations of the Cyclin D1 (CCND1, PRAD1, bcl-1) gene locus at chromosome 11q13 in basal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs) of the skin and to compare it with the Cyclin D1 protein expression. Fluorescence in situ hybridization with DNA-probes specific for the Cyclin D1 gene locus and the centromere of chromosome 11 as well as immunostaining for Cyclin D1 protein was applied on 5 microm serial paraffin sections. Six of the 30 (20%) SCCs showed additional Cyclin D1 gene copies and 2/30 (6.6%) cases had a loss of the Cyclin D1 gene locus in relation to the centromere 11 number. In contrast, only one of the 14 BCCs (7%) showed one additional Cyclin D1 gene copy in relation to the centromere 11 number. None of the BCCs demonstrated aneusomy for chromosome 11 in contrast to SCCs, where it was found in 21/30 (70%) cases. Twenty-six of the 30 (86.6%) cutaneous SCCs and 13/14 (93%) BCCs expressed Cyclin D1 protein. All SCCs and the BCC with additional Cyclin D1 gene copies showed positivity for Cyclin D1 protein. Both SCCs with less Cyclin D1 gene copies than centromere 11 signals showed a weak protein expression. Our findings suggest that numerical abnormalities of the Cyclin D1 gene locus could result in an altered gene-dose effect, possibly leading to an aberrant expression in affected tumor cells. This might result in deregulation of cell cycle control, eventually leading to uncontrolled cell cycle progression.


Asunto(s)
Aneuploidia , Carcinoma Basocelular/genética , Carcinoma de Células Escamosas/genética , Cromosomas Humanos Par 11 , Ciclina D1/genética , Ciclina D1/metabolismo , Neoplasias Cutáneas/genética , Anciano , Femenino , Humanos , Hibridación Fluorescente in Situ , Masculino , Persona de Mediana Edad
11.
Cancer Invest ; 20(7-8): 914-21, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-12449722

RESUMEN

Apoptosis is an important co-factor in the pathogenesis of a plethora of malignancies. Enhanced c-myc activation can result either in proliferation or apoptosis. Coexpression with antiapoptotic bcl-2, which abrogates the apoptotic function of c-myc might lead to an enormous growth advantage of cells. In order to elucidate the role of c-myc and bcl-2 as well as the coexpression of both genes in human melanoma, their expression was studied in four samples of normal skin (SK), 15 surgical margins (SM), 20 benign melanocytic nevi (MN), 20 primary melanomas (MM), and 30 melanoma metastases (MMET) by RT-PCR. These results were compared with immunohistochemistry (IH) in 7 SK, 7 SM, 26 MN, 50 MM, and 34 MMET. Similar results were found with both methods. However, MMET expressed c-myc (PCR 28/30, IH 23/34) as well as bcl-2 (PCR 27/30, IH 24/34) more frequently. Primary melanomas showed a similar expression pattern as SM and nevi. Moreover, in contrast to SK, SM, MN, and MM coexpression of bcl-2 and c-myc was found more frequently in MMET (PCR 25/30, p < 0.01, IH 19/34, p < 0.01). These results indicate that coexpression of c-myc and bcl-2 appears to be associated with advanced melanoma and contributes to the malignant phenotype.


Asunto(s)
Melanoma/genética , Proteínas Proto-Oncogénicas c-bcl-2/genética , Proteínas Proto-Oncogénicas c-myc/genética , Neoplasias Cutáneas/genética , Cartilla de ADN/química , Humanos , Técnicas para Inmunoenzimas , Melanoma/metabolismo , Melanoma/patología , Proteínas Proto-Oncogénicas c-bcl-2/metabolismo , Proteínas Proto-Oncogénicas c-myc/metabolismo , ARN Mensajero/metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Piel/metabolismo , Neoplasias Cutáneas/metabolismo , Neoplasias Cutáneas/patología
12.
Photodermatol Photoimmunol Photomed ; 18(4): 183-90, 2002 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12390673

RESUMEN

BACKGROUND: Cutaneous chronic graft versus host disease (GVHD) is a severe complication following allogeneic stem cell (PBSCT) and bone marrow transplantation (BMT). Immunosuppressive therapy consists of prednisone, cyclosporine-A, azathioprine or mycophenolate mofetil (MMF). Treatment of patients refractory to immunosuppression represents a major problem. METHODS: We report six patients suffering from severe chronic GVHD of the skin who did not respond to immunosuppressive therapy or relapsed after reduction of glucocorticosteroids. Patients were treated with psoralen plus ultraviolet (PUVA)-bath photochemotherapy three times weekly following a standardized treatment protocol under continued treatment with prednisone and/or MMF. One patient was additionally pretreated with ultraviolet-A1 (UV-Al). RESULTS: After a median of 14, 5 treatment sessions, skin lesions improved. Out of six patients, three showed a complete remission. In all patients, systemic immunosuppressive therapy could be reduced. In sclerodermic lesions, skin thickness returned to the levels of normal skin after 25 treatments confirmed by 20 MHz ultrasound evaluation. In a follow-up ranging from 2 to 21 months (median 10, 3 months), skin conditions remained stable. CONCLUSION: Psoralen plus ultraviolet-A-bath represents an effective adjunct treatment option for extensive chronic and sclerodermic cutaneous GVHD offered by dermatologists. This is of high interest in patients suffering from cutaneous GVHD resistant to conventional immunosuppressive therapy and should be included to the menu of topical treatment options for chronic cutaneous GVHD.


Asunto(s)
Enfermedad Injerto contra Huésped/tratamiento farmacológico , Terapia PUVA , Enfermedades de la Piel/tratamiento farmacológico , Adulto , Trasplante de Médula Ósea/efectos adversos , Enfermedad Crónica , Terapia Combinada , Femenino , Enfermedad Injerto contra Huésped/etiología , Enfermedad Injerto contra Huésped/patología , Enfermedad Injerto contra Huésped/terapia , Humanos , Inmunosupresores/uso terapéutico , Masculino , Persona de Mediana Edad , Ácido Micofenólico/administración & dosificación , Ácido Micofenólico/análogos & derivados , Fototerapia , Prednisona/administración & dosificación , Piel/patología , Enfermedades de la Piel/patología , Enfermedades de la Piel/terapia , Trasplante de Células Madre/efectos adversos
13.
Acta Derm Venereol ; 82(1): 18-20, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-12013191

RESUMEN

Up to now, there are only a few data available concerning the influence of bathing time on skin phototoxicity. We compared the erythemal responses of normal skin to bath PUVA with 8-methoxypsoralen (8-MOP) after 5, 10 and 20 min immersion time. Currently, 20 min is the routinely performed immersion time in many European countries, including Germany, while in other countries bathing times are shorter. The minimal phototoxic dose (MPD) following immersion times of 5 min and 10 min in a warm water bath (37 degrees C) containing 1 mg/l 8-MOP was compared to the MPD following 20 min immersion time in a half-sided manner in a total of 24 patients. Our results revealed that an immersion time of 5 min did not yield a detectable erythema after 72 h. In contrast, both 10 and 20 min PUVA baths induced visible erythemas with a significantly higher median MPD following 10 min immersion (2.25 J/cm2) compared to 20 min baths (1.5 J/cm2). As an erythemal response of 8-MOP PUVA bath seems reduced after shorter immersion times, comparative studies on the clinical efficacy using shorter time regimens have to be conducted before conclusive recommendations for clinical PUVA-bathing time can be given.


Asunto(s)
Metoxaleno/farmacología , Terapia PUVA/métodos , Fármacos Fotosensibilizantes/farmacología , Enfermedades Cutáneas Papuloescamosas/tratamiento farmacológico , Baños , Relación Dosis-Respuesta a Droga , Eritema/etiología , Eritema/fisiopatología , Femenino , Estudios de Seguimiento , Humanos , Inmersión , Masculino , Metoxaleno/uso terapéutico , Terapia PUVA/efectos adversos , Fármacos Fotosensibilizantes/uso terapéutico , Probabilidad , Estudios Prospectivos , Psoriasis/diagnóstico , Psoriasis/terapia , Índice de Severidad de la Enfermedad , Piel/efectos de los fármacos , Piel/efectos de la radiación , Enfermedades Cutáneas Papuloescamosas/diagnóstico , Pruebas Cutáneas , Estadísticas no Paramétricas , Factores de Tiempo , Resultado del Tratamiento
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