Retinal and optic nerve relapse in retinoblastoma secondary to epiretinal and epipapillary vitreous seeds implantation documented by optical coherence tomography.

BACKGROUND: Retinal retinoblastoma growth phenotypes can be endophytic, exophytic, diffuse infiltrating or anterior diffuse. Herein, we describe a novel tumor growth pattern in two patients. MATERIAL AND METHODS: Imaging with spectral-domain optical coherence tomography (SD-OCT). RESULTS: Both cases were diagnosed with unilateral group D retinoblastoma treated with first-line or bridge intra-arterial chemotherapy (IAC). Case 1 had a new intravitreal/epiretinal relapse 3 months after brachytherapy and intravitreal chemotherapy. SD-OCT showed a disruption of the inner limiting membrane (INL) underneath a parapapillary epiretinal seed. The intravitreal/epiretinal disease completely regressed with intravitreal melphalan. Three months later, an isolated intraretinal growth was documented on SD-OCT at the site of previously INL disruption, which was treated by thermotherapy. He remained disease-free at 1-year follow-up with 0.6 visual acuity. Case 2 was seen 2 months after treatment interruption due to the COVID-19 pandemic. Fundus examination showed a massive intravitreal/epipapillary invasion completely obscuring the papilla. Salvage treatment of this seeing eye consisted of combined intra-arterial and intravitreal melphalan and topotecan injections. An infraclinical papillary regrowth 4 months later was treated with additional IAC. Six months later, enucleation was performed due to an infraclinical papillary relapse with suspicion of intralaminar invasion. Histopathology showed retrolaminar optic nerve invasion with tumor-free surgical section. The child received four cycles of adjuvant chemotherapy and remained disease-free at 1-year follow-up. CONCLUSION: Epiretinal/epipapillary vitreous seeding can be the source of a secondary intraretinal/optic nerve head relapse. SD-OCT is instrumental to follow such cases. Enucleation remains the safest option if secondary optic nerve invasion is suspected.

Eficacia y seguridad de daratumumab en combinación con bortezomib, melfalán y prednisona en pacientes adultos con mieloma múltiple de nuevo diagnóstico no candidatos a trasplante de células progenitoras hematopoyéticas / Efficacy and safety of daratumumab in combination with bortezomib, melphalan and prednisone in adult patients with newly diagnosed multiple myeloma who are not candidates for hematopoietic stem cell transplantation

INTRODUCCIÓN: se ha elaborado el presente dictamen, el que expone la evaluación de la eficacia y seguridad de daratumumab junto a bortezomib, melfalán y prednisona en comparación con bortezomib, melfalán y prednisona en el tratamiento de pacientes adultos con mieloma múltiple de nuevo diagnóstico no candidato a trasplante de células progenitoras hematopoyéticas. El mieloma múltiple (MM) es una neoplasia hematológica rara, maligna e incurable que se caracteriza por la proliferación de un clon de células plasmáticas derivadas de células B (Kyle et al., 2003). Esta neoplasia suele afectar a mayores de 60 años con edad promedio de aparición entre los 70 y 75 años (Turesson et al., 2010). Su incidencia es mayor en hombres que en mujeres en hasta 1.5 veces (Blimark et al., 2018). La clasificación del riesgo en MM se basa en los resultados de hibridación in situ con fluorescencia (FISH) para translocaciones específicas y otros exámenes para determinar niveles de lactato deshidrogenasa y células plasmáticas en sangre (Palumbo et al., 2015). Así se clasifican en: 1) MM de alto riesgo; y 2) MM de riesgo estándar. Los pacientes con MM de nuevo diagnóstico (MMND) requieren un trasplante de células madre autólogas (TCMA) o trasplante de células progenitoras hematopoyéticas (TCPH) como parte de su tratamiento (Chari et al., 2018; Mahajan et al., 2018). Sin embargo, no todo paciente con MMND es elegible para un TCPH porque se debe tener en consideración el riesgo de progresión, el estado general, la edad y la presencia de comorbilidades para su indicación (Mahajan et al., 2018). EsSalud cuenta con medicamentos que podrían ofrecerse para el tratamiento de MMND no elegibles a TCPH como bortezomib, lenalidomida y dexametasona; los cuales están recomendados por las GPC. Sin embargo, los especialistas de la institución sugieren que el uso de daratumumab en combinación con bortezomib, melfalán y prednisona podría ser una alternativa que brinden mejoras en desenlaces clínicos relevantes con un adecuado perfil de seguridad. METODOLOGÍA: Se llevó a cabo una búsqueda bibliográfica exhaustiva con el objetivo de identificar la mejor evidencia sobre la eficacia y seguridad de daratumumab más bortezomib, melfalán y prednisona en pacientes con MMND no candidatos a TCPH. La búsqueda bibliográfica se realizó en las bases de datos PubMed, The Cochrane Library y LILACS. Asimismo, se realizó una búsqueda manual dentro de las páginas web pertenecientes a grupos que realizan evaluaciones de tecnologías sanitarias (ETS) y guías de práctica clínica (GPC), incluyendo la National Institute for Health and Care Excellence (NICE), Canadian Agency for Drugs and Technologies in Health (CADTH), Scottish Medicines Consortium (SMC), Scottish Intercollegiate Guidelines Network (SIGN), Institute for Clinical and Economic Review (ICER), Instituto de Calidad y Eficiencia en la Atención de la Salud (IQWiG, por sus siglas en alemán), Agency for Healthcare Research and Quality (AHRQ), Guidelines International Network (GIN), National Health and Medical Research Council (NHMRC), Haute Autorité de Santé (HAS), International HTA Database, la Base Regional de Informes de Evaluación de Tecnologías en Salud de las Américas (BRISA), la OMS, el Ministerio de Salud de Chile, el Ministerio de Salud del Perú (MINSA) y el Instituto de Evaluación de Tecnologías en Salud e Investigación (IETSI). Además, se realizó una búsqueda de GPC de las principales sociedades o instituciones especializadas en oncología, tales como: European Society for Medical Oncology (ESMO), el Grupo Español de Mieloma, National Comprehensive Cancer Network (NCCN), American Society of Clinical Oncology (ASCO), Cancer Care Ontario (CCO), la British Society for Hematology (BSH). Finalmente, se realizó una búsqueda en la página web de registro de ensayos clínicos (EC) www.clinicaltrials.gov, para identificar EC en curso o que no hayan sido publicados aún. RESULTADOS: Luego de la búsqueda bibliográfica (hasta julio de 2021), se incluyeron cuatro GPC desarrolladas por la Sociedad Europea de Oncología Médica (ESMO) en colaboración con la Asociación Europea de Hematología (EHA), la American Society of Clinical Oncology (ASCO) en colaboración con Cancer Care Ontario (CCO), la British Society for Hematology (BSH) y la National Comprehensive Cancer Network (NCCN); así como 2 ETS realizadas por Ludwing Boltzmann Institute (LBI) y Haute Autorité de Santé (HAS), y un ensayo clínico aleatorizado (ECA) de fase III de etiqueta abierta denominado ALCYONE (NCT02195479). CONCLUSIÓN: Por lo expuesto, el Instituto de Evaluación de Tecnologías en Salud e Investigación no aprueba el uso de daratumumab en combinación con bortezomib, melfalán y prednisona en pacientes con nuevo diagnóstico de mieloma múltiple no candidatos a trasplante de células progenitoras hematopoyéticas.

A feasibility study of circulating melanoma cells in the perioperative context of hyperthermic isolated limb perfusion (HILP) in 20 patients.

INTRODUCTION: Hyperthermic Ιsolated Limb Perfusion using melphalan and TNFα (TM-HILP) is a regional chemotherapy method for advanced melanoma. PURPOSE: To explore the feasibility of the study of Circulating Melanoma Cells (CMCs) in the context of acute physiological changes induced by TM-HILP and their association with oncological outcomes. METHODS: The study included 20 patients undergoing TM-HILP for unresectable in-transit melanoma of the limbs, stage III(B/C/D). CMCs in the peripheral blood were analyzed at 5-time points from the preoperative day until day 7 from surgery using the following biomarkers: MITF, Tyrosinase mRNA, Melan-A and S100b, through quantitative RT-PCR. RESULTS: No CMCs according to Tyrosinase and Melan-A biomarkers were found in any sample. Friedman test showed significant alterations perioperatively for MITF (p < .001) and S100b (p = .001). Pairwise tests showed a significant increase of MITF levels on postoperative day 7 compared with postoperative day 1, intraoperative and preoperative levels (p < .05). Pairwise tests for S100b showed a significant difference between intraoperative sample and postoperative day 7 (p < .0001). Patients who experienced a complete response to TM-HILP (n = 12) had higher mean levels of MITF and the difference was significant at the time point immediately after the operation (0.29 ± 0.27 vs. 0.06 ± 0.06, p = .014) and on postoperative day 1 (1.48 ± 2.24 vs. 0.41 ± 0.65, p = .046). There was no association of MITF or S100b levels with 4-year disease specific survival. CONCLUSION: TM-HILP is associated with increased levels of CMCs, but there was no association of this increase with survival. Patients with complete response to HILP demonstrate higher values of MITF shortly after the operation.

INTRAVITREAL MELPHALAN FOR TREATMENT OF VITREOUS SEEDING FROM CHOROIDAL MELANOMA.

PURPOSE: To report treatment of vitreous seeding of choroidal melanoma with monthly injections of intravitreal melphalan. METHODS: Case report. RESULTS: A 70-year-old white woman noted floaters in her left eye, and further examination revealed visual acuity of 20/30 in both eyes. Funduscopically, there was a mushroom-shaped choroidal melanoma in her left eye, measuring 9 mm in basal dimension and 4.8 mm in thickness. Notably, there was apical retinal invasion of melanoma with mild vitreous hemorrhage, without vitreous seeding. The tumor was treated with iodine-125 plaque radiotherapy using an apex dose of 70 Gy over 99 hours, designed to include the retinal invasion. The melanoma demonstrated complete regression into a nearly flat scar of 1 mm and remained stable over 4 years. Five years after radiotherapy, there were diffuse vitreous pigmented seeds of presumed melanoma origin, emanating from the site of retinal necrosis. This progressively worsened over the following 18 months, suspicious for viable melanoma cells, as visual acuity concurrently declined to 20/100. Treatment with intravitreal melphalan (10 µg/0.05 mL) was delivered on a monthly basis for 12 cycles, resulting in vitreous seeds regression, and preservation of the eye. Final visual acuity was 20/200. There were no treatment-related complications. CONCLUSION: Intravitreal melphalan can be considered in cases of vitreous seeding from uveal melanoma.

131 I-Meta-iodobenzylguanidine followed by busulfan and melphalan and autologous stem cell rescue in high-risk neuroblastoma.

INTRODUCTION: Despite the progress in current treatments, the event-free survival of high-risk neuroblastoma (HR-NB) patients does not exceed 40%-50%, and the prognosis of refractory or relapsed patients is poor, still representing a challenge for pediatric oncologist. Therapeutic Iodine-131 meta-iodobenzylguanidine (Th-131 I-MIBG) is a recognized safe and potentially effective treatment for NB. MATERIALS: This retrospective study reports the outcomes of 28 MIBG-avid NB patients with advanced disease either refractory or relapsed, which was undertaken from 1996 to 2014. Th-131 I-MIBG was administered shortly before (median: 17 days) high-dose chemotherapy with busulfan and melphalan (HD-BuMel) and autologous stem cell rescue (ASCR) at the Gaslini Institute in Genoa, with the aim of analyzing the feasibility, safety, and efficacy of this approach. RESULTS: Engraftment occurred in all patients after a median of 14 (11-29) and 30 days (13-80) from ASCR for neutrophils and platelets, respectively. No treatment-related deaths were observed. The main high-grade (3-4) toxicity observed was oral and gastrointestinal mucositis in 78.6% and 7.1% of patients, respectively, whereas high-grade hepatic toxicity was observed in 10.7%. Two patients developed veno-occlusive-disease (7.1%), completely responsive to defibrotide. Hypothyroidism was the main late complication that occurred in nine patients (31.1%). After Th-131 MIBG and HD-BuMel, 19 patients (67.8%) showed an improvement in disease status. Over a median follow-up of 15.9 years, the three-year and five-year overall survival (OS) probabilities were 53% (CI 0.33-0.69) and 41% (CI 0.22-0.59), and the three-year and five-year rates of cumulative risk of progression/relapse were 64% (CI 0.47-0.81) and 73% (CI 0.55-0.88), respectively. MYCN amplification emerged as the only risk factor significantly associated with OS (HR, 3.58;P = 0.041). CONCLUSION: Th-131 I-MIBG administered shortly before HD-BuMel is a safe and effective regimen for patients with advanced MIBG-avid NB. These patients should be managed in centers with proven expertise.

Hyperthermic isolated limb perfusion, preoperative radiotherapy, and surgery (PRS) a new limb saving treatment strategy for locally advanced sarcomas.

BACKGROUND: This feasibility study presents the results of a new intensive treatment regimen for locally advanced extremity soft tissue sarcomas (ESTS), consisting of hyperthermic isolated limb perfusion (HILP), preoperative external beam radiotherapy (EBRT), and surgical resection. METHODS: From 2011 to 2016, 11 high grade locally advanced ESTS patients underwent this treatment regimen. Preoperative EBRT (12 × 3 Gy) started <4 weeks following the HILP (TNF-α and melphalan) and the surgical resection was planned to take place <2 weeks following the end of the EBRT. RESULTS: All patients completed the treatment. After a median follow-up of 32 (23-50) months, the limb was saved in 10 patients (91%), 1 patient (9%) developed a local recurrence, 5 patients (45%) developed distant metastases, and 3 patients (27%) died of their disease. During follow-up two patients (18%) developed a pathologic fracture of the treated limb and three patients (27%) developed a major wound complication requiring surgical intervention. The median overall treatment time (OTT) was 56 (49-69) days. CONCLUSIONS: This intensive treatment regimen is feasible and safe in locally advanced ESTS, and it achieves oncological results that are comparable with conventional HILP treatment. In addition, the major wound complication risk is comparable and the OTT is reduced.

Comparison of Survival in Patients with Isolated Peritoneal Carcinomatosis from Colorectal Cancer Treated with Cytoreduction and Melphalan or Mitomycin-C as Hyperthermic Intraperitoneal Chemotherapy Agent.

BACKGROUND: The role of hyperthermic intraperitoneal chemotherapy (HIPEC) for peritoneal carcinomatosis (PC) from colorectal cancer (CRC) is debated. Melphalan as a perfusion agent has also demonstrated survival benefit in other recurrent and chemoresistant malignancies. Thus, we hypothesize that melphalan as a HIPEC agent may improve overall survival (OS) and progression-free survival (PFS) in patients with PC from CRC. METHODS: A retrospective review of a prospective database of 48 patients who underwent optimal CRS (CC-0/1) and HIPEC from 2001-2016 was performed. Nineteen had CRS/HIPEC with melphalan (group I) and 29 with mitomycin-C (group II). Survival was estimated using the Kaplan-Meier method. Cox regression was used for multivariate analysis. Perioperative variables were compared. RESULTS: Mean age at CRS/HIPEC was 53±10 years. Median peritoneal cancer index (PCI) was 17 vs 13 in groups I and II, respectively (p=0.86). PCI≥20 occurred in 9 (47%) and 13 (45%) patients in groups I and II, respectively. Positive lymph nodes were identified in 8/19 (42%) vs 12/29 (41%) in groups I and II, respectively (p=0.73). Multivariate analysis identified PCI≥20 as a predictive factor of survival (HR: 7.5). Median OS in groups I and II was 36 and 28 months, respectively (p=0.54). Median PFS in groups I and II was 10 and 20 months, respectively (p=0.05). CONCLUSIONS: CRS/HIPEC with MMC had longer median PFS in PC from CRC. PCI≥20 was the only independent predictive factor for survival. Until longer follow-up is available, we recommend using MMC in CRS/HIPEC for PC from CRC. Further prospective randomized studies are necessary.

Análisis de impacto presupuestal de tecnologías para el manejo complementario de quimioterapia en Colombia / Budget impact analysis of technologies for the complementary management of chemotherapy in Colombia

INTRODUCCIÓN: El análisis de impacto presupuestal (AIP) de los medicamentos quimioterapéuticos para el tratamiento de cáncer en Colombia, se desarrolló en el marco del mecanismo técnico científico para la ampliación progresiva del Plan de Beneficios en Salud con cargo a la UPC (PBSUPC) y la definición de la lista de exclusiones, establecido en el artículo 15 de la Ley 1751 de 2015. La quimioterapia tiene un gran impacto en el tratamiento oncológico, la cual es indispensable por su valor terapéutico en varios tipos de cáncer. Esta tecnología puede ser usada sola o junto con otros tratamientos, tales como la cirugía o la radioterapia. La quimioterapia engloba a una gran variedad de fármacos y su objetivo es destruir las células tumorales con el fin de lograr la reducción de la enfermedad, los medicamentos empleados en este tipo de tratamiento se les denomina fármacos antineoplásicos. Cada tipo de tumor canceroso tiene una determinada sensibilidad a estos medicamentos, por lo tanto, es frecuente que el mismo fármaco se pueda emplear en el tratamiento de distintos tumores, variando las dosis o asociándolo a otros fármacos distintos. La quimioterapia puede ser administrada con fines curativos o para aliviar los síntomas y prolongar la supervivencia. La forma de administración de la quimioterapia es por ciclos y esto se logra alternando los periodos de tratamiento con periodos de descanso. Un ciclo es, por lo tanto, el periodo de administración del tratamiento y el de descanso hasta la siguiente administración. El objetivo de este análisis de impacto presupuestal (AIP) es estimar el esfuerzo financiero necesario para la adopción de la quimioterapia en el tratamiento de pacientes con cáncer en Colombia, en un horizonte temporal de tres años. Este documento está conformado por cuatro secciones: en la primera se identifican las tecnologías a evaluar, en la segunda sección se especifica la perspectiva, horizonte temporal y la población sobre la cual se realizó el AIP; en la sección tres se detallan los costos utilizados en el modelo, además de los escenarios planteados por los investigadores; por último, en la sección cuatro se exponen los resultados en los diferentes escenarios planteados Este documento describe la metodología desarrollada para realizar el análisis de impacto presupuestal de 21 tecnologías para el manejo quimioterapéutico del cáncer en Colombia Este informe, sigue los lineamientos propuestos en el Manual para la Elaboración de Análisis de Impacto Presupuestal y en Manual de Participación y Deliberación publicados por IETS. Insumos y método: Esta sección presenta los supuestos, parámetros y métodos utilizados para el modelo de estimación del impacto presupuestal describiendo la siguiente información: Perspectiva: La perspectiva de este AIP es la del tercer pagador el cual en nuestro contexto es el Sistema General de Seguridad Social en Salud (SGSSS). Horizonte temporal: El horizonte temporal de este AIP en el caso base corresponde a un año. Adicionalmente se reportan las estimaciones del impacto presupuestal para los años 2 y 3, bajo el supuesto de inclusión en el PBS en el año 1. Población total: Para el desarrollo de este AIP se parte de la población general afiliada al SGSSS colombiano sin distinción de sexo o edad. ESCENARIOS: Se consideró para la formulación de los escenarios de adopción de las tecnologías evaluadas los siguientes aspectos: 1. Los medicamentos evaluados no son alternativas terapéuticas para las patologías observadas, estas tecnologías sanitarias hacen parte de los protocolos de tratamiento con evidencia científica suficiente que garantizan su efectividad y seguridad clínica y que actualmente se encuentran en las opciones de tratamiento utilizados en la práctica clínica colombiana. 2. Al ser esquemas de tratamiento que hacen parte de protocolos estandarizados de aplicación, sí alguno de los medicamentos es sujeto de recobros ante ADRES, este trámite puede generar barreras de acceso al tratamiento hasta que se efectué la respectiva aprobación. Por lo tanto, no hay certeza de la efectividad clínica si los esquemas de tratamiento son suministrados de forma parcial o incompleta. 3. La elección del esquema de tratamiento obedece a criterios clínicos y a las características evaluadas en el paciente, no se espera una sustitución entre los diferentes esquemas sí se realiza un cambio en el mecanismo de financiamiento. 4. La adopción de las tecnologías evaluadas en este AIP no se espera que se modifiquen de manera importante, debido a que estas tecnologías hacen parte integral de los esquemas de tratamiento y su incorporación en la práctica clínica habitual en el contexto internacional y nacional, data de aproximadamente 10 a 5 años. Tambieén son parte de las opciones de primera línea de tratamiento para estadios tempranos, avanzados y localmente avanzados del paciente diagnosticado con câncer. De acuerdo a las anteriores consideraciones, al incorporar los medicamentos evaluados al PBS con cargo a la UPC, se espera la misma composición del mercado con la adopción de los nuevos medicamentos en el 100% de los tratamientos esperados en la siguiente anualidad. Los resultados esperados en el sistema de salud, en este cambio de financiamiento, se esperan obtener en dos puntos: a) En una mejor oportunidad de acceso a los esquemas de tratamiento en el SGSSS (25). b) En una mejora en la cobertura efectiva de los tratamientos de quimioterapia en pacientes con diagnóstico de cáncer. RESULTADOS: Se muestra el resultado consolidado para las ventiun tecnologías objeto del Análisis de Impacto Presupuestal. La tecnología que genera un mayor impacto es Oxaliplatino, con un valor por persona de $2.363.250,76 usada en 3170 pacientes, para un total de $7.491.504.923,90. El Megestrol es la tecnología con menor impacto, con un costo por persona de $ 383.791,06 y siendo usada en 34 pacientes, tiene un valor total de $ 13.048.896,00. La tretinoina es la tecnología más económica por paciente, con un valor de $ 97.996,50, es usada en 242 personas para un total de $ 23.715.153,00. DISCUSIÓN: En la práctica actual existe un volumen amplio de recobros en el caso de estos medicamentos por usos UNIRS. En algunos casos, los cambios en el mercado farmacéutico, ya sea por el retiro de medicamentos o la llegada de ellos, hace que se modifique indicaciones ya existentes en los registros y que pueden llegar a impactar estos. usos, por ejemplo aquellos casos en los que existe la indicación antineplásico y se cambian por indicaciones especificas, que pueden no considerar condiciones de salud de baja incidencia. Como se ha caracterizado con anterioridad, el mercado de tecnologías sanitarias que se encuentran incluidas al plan de beneficios en salud con cargo a la UPC difiere sustancialmente al mercado de tecnologías sanitarias aún no financiadas por dicho mecanismo. La existencia de las Empresas Administradoras de Planes de Beneficios (EAPB) presume la existencia de un actor que al maximizar su beneficio, es un buen negociador que en cumplimiento de los principios del SGSSS, llega a un precio de equilibrio que maximiza el beneficio social. En cambio, los medicamentos que son sujetos a recobros al ADRES presume un precio fuera de aquel nivel en donde se maximiza al beneficio social, en la medida que no hay una función clara de monopsonio que coteje y negocie un precio de adquisición. En algunos casos puede llegar asumir sobrecostos que las EAPB al ser intermediarias, no tienen incentivos para efectuar un adecuado control. Con el objetivo de estimar el resultado de la incorporación de estos medicamentos al PBS con cargo a la UPC, se asumieron dos escenarios en los cuales la población objetivo del AIP se consideró constante y se asumieron los siguientes supuestos: En el primer escenario se asume que los precios observados en recobros serán el promedio de todas las transacciones de compra en la siguiente anualidad. En el segundo escenario los precios promedio de adquisición de los medicamentos evaluados, corresponden al promedio observado en SISMED como predictor de los precios de equilibrio que pueden generar las EAPB como ente negociador. Se asume que, en promedio, las EAPB son negociadores eficientes que se acercan a un precio de equilibrio que maximiza el bienestar social. Se asume que la población objetivo corresponde al total de posibles pacientes que requieren las tecnologías sanitarias en evaluación, sin que exista demanda insatisfecha para estos esquemas de tratamiento. Para su cálculo, como se presenta en la tabla 09 de los servicios prestados durante el año 2015 y recobrados al FOSYGA en los años 2015 y 2016, se calculó un valor per-cápita de acuerdo con el identificador (cedula de ciudadanía anonimizada) registrado en cada recobro. Luego, este valor es indexado a precios 2016 con el IPC reportado por el DANE a diciembre 31 del año 2015. Este valor será el comparador del precio calculado para cada uno de los medicamentos a partir de SISMED 2016.

Hyperthermic isolated limb perfusion. The switch from Steinmann pins to Omni-tract assisted isolation.

BACKGROUND: Hyperthermic isolated limb perfusion (HILP) represents an alternative to amputation for patients with either in-transit melanoma or unresectable soft tissue sarcoma, entailing delivery of high-dose chemotherapy after isolation of the extremity, under hyperthermic conditions. Stabilization of the Esmarch elastic bandage is so far performed with the use of Steinmann pins. In this study, we presented our experience with HILP and demonstrated an alternative technique for limb isolation using an Omni-tract retractor instead of the traditional Steinmann pin, while comparing the two methods. METHODS: Forty patients, 28 with recurrent in-transit melanoma and 12 with locally advanced/recurrent sarcoma of the limbs, underwent HILP in a single institution and were included in the study. The Steinmann pin was applied in the first 23 cases, whereas the Omni-tract retractor was applied in the latter 17 patients. RESULTS: The median follow-up for the whole study group was 17.5 mo, whereas the overall response rate was 92.9% for melanoma and 75% for sarcoma patients. Both overall survival and local progression-free survival differed significantly between patients with complete response and those with partial response, stable disease or progressive disease. The use of the Omni-tract retractor was advantageous in every examined field, with the overall complication rate, duration of analgesic administration, and total opioid and paracetamol dose, being significantly less in the Omni-tract patient group. CONCLUSIONS: Although this study was not a randomized trial, we consider that the noninvasive application of the Omni-tract retractor will gain significant acceptance, by contributing to the reduction of HILP complications.

Incorporation of high-dose 131I-metaiodobenzylguanidine treatment into tandem high-dose chemotherapy and autologous stem cell transplantation for high-risk neuroblastoma: results of the SMC NB-2009 study.

BACKGROUND: In our previous SMC NB-2004 study of patients with high-risk neuroblastomas, which incorporated total-body irradiation (TBI) with second high-dose chemotherapy and autologous stem cell transplantation (HDCT/auto-SCT), the survival rate was encouraging; however, short- and long-term toxicities were significant. In the present SMC NB-2009 study, only TBI was replaced with 131I-meta-iodobenzylguanidine (MIBG) treatment in order to reduce toxicities. METHODS: From January 2009 to December 2013, 54 consecutive patients were assigned to receive tandem HDCT/auto-SCT after nine cycles of induction chemotherapy. The CEC (carboplatin + etoposide + cyclophosphamide) regimen and the TM (thiotepa + melphalan) regimen with (for metastatic MIBG avid tumors) or without (for localized or MIBG non-avid tumors) 131I-MIBG treatment (18 or 12 mCi/kg) were used for tandem HDCT/auto-SCT. Local radiotherapy, differentiation therapy with 13-cis-retinoic acid, and immunotherapy with interleukin-2 were administered after tandem HDCT/auto-SCT. RESULTS: Fifty-two patients underwent the first HDCT/auto-SCT and 47 patients completed tandem HDCT/auto-SCT. There was no significant immediate toxicity during the 131I-MIBG infusion. Acute toxicities during the tandem HDCT/auto-SCT were less severe in the NB-2009 study than in the NB-2004 study. Late effects such as growth hormone deficiency, cataracts, and glomerulopathy evaluated at 3 years after the second HDCT/auto-SCT were also less significant in the NB-2009 study than in NB-2004 study. There was no difference in the 5-year event-free survival (EFS) between the two studies (67.5 ± 6.7% versus 58.3 ± 6.9%, P = 0.340). CONCLUSIONS: Incorporation of high-dose 131I-MIBG treatment into tandem HDCT/auto-SCT could reduce short- and long-term toxicities associated with TBI, without jeopardizing the survival rate. TRIAL REGISTRATION: ClinicalTrials.gov NCT03061656.

Influences of FLU/BU and FLU/MEL on incidence and severity of oral mucositis among allogeneic hematopoietic stem cell transplantation patients.

In the present study, we compared the incidence and severity of oral mucositis among patients undergoing allogeneic hematopoietic stem cell transplantation after fludarabine-based regimens with busulfan 12.8 mg/kg (FB12.8), with busulfan less than or equal to 9.6 mg/kg (FB9.6), and with melphalan 140 mg/m2 (FM). The incidence of oral mucositis after FB12.8 was the highest among these 3 groups. After FM, all of the patients had developed oral mucositis by day 7. The mean disease duration of oral mucositis after FB12.8 was 13.5 days, whereas the mean disease duration after FM was 24.9 days, and was significantly prolonged as compared to that after FB12.8 (p=0.0009). The incidence of severe oral mucositis (grade 3) after FM was significantly higher than that after FB12.8 (p=0.03). As stated above, although the incidence of oral mucositis after FB12.8 was higher than that after FM, oral mucositis after FB12.8 showed improvement relatively quickly without deterioration. In contrast, the higher incidence of severe oral mucositis and the delay in resolution of mucositis after FM were remarkable.

Multiple Myeloma Tumor Cells are Selectively Killed by Pharmacologically-dosed Ascorbic Acid.

High-dose chemotherapies to treat multiple myeloma (MM) can be life-threatening due to toxicities to normal cells and there is a need to target only tumor cells and/or lower standard drug dosage without losing efficacy. We show that pharmacologically-dosed ascorbic acid (PAA), in the presence of iron, leads to the formation of highly reactive oxygen species (ROS) resulting in cell death. PAA selectively kills CD138+ MM tumor cells derived from MM and smoldering MM (SMM) but not from monoclonal gammopathy undetermined significance (MGUS) patients. PAA alone or in combination with melphalan inhibits tumor formation in MM xenograft mice. This study shows PAA efficacy on primary cancer cells and cell lines in vitro and in vivo.

Cryptococcus laurentii diarrhea post hematopoietic stem cell transplant.

We report the recent isolation of Cryptococcus laurentii from the feces of a patient with Hodgkin's lymphoma who underwent autologous hematopoietic stem cell transplant (HSCT). The organism was identified using microscopic morphology, cultural characteristics, and biochemical tests including sugar assimilation. Minimum inhibitory concentration of various antifungals was determined by microbroth dilution method. The recovery of pure culture of C. laurentii from stool culture, and the patient's response to treatment with voriconazole support its potential etiological role. To the best of our knowledge, we report the first case of diarrhea caused by C. laurentii in an HSCT recipient.

OCULAR PHARMACOLOGY OF CHEMOTHERAPY FOR RETINOBLASTOMA.

PURPOSE: To review preclinical and clinical pharmacokinetic studies of the three most important chemotherapy drugs used for intraocular retinoblastoma and the contribution of the reported results to optimize treatment. METHODS: Systemic review of pharmacokinetic studies identified by a literature search at Pubmed using the keywords carboplatin, melphalan, topotecan, intravitreal, ophthalmic artery chemosurgery, pharmacokinetics, and retinoblastoma. RESULTS: A total of 21 studies were reviewed for assessing the preclinical and clinical pharmacokinetics of carboplatin, topotecan, and melphalan delivered by intravenous, periocular, ophthalmic artery, and intravitreal routes. Some preclinical studies were done before translation to the clinics. Others, despite encouraging preclinical data as reported for periocular topotecan did not correlate with clinical use. In addition, as was the case for melphalan after ophthalmic artery chemosurgery and despite nonfavorable preclinical information, some routes of drug delivery are clinically effective. Besides topotecan, complete knowledge of the pharmacokinetics of melphalan and carboplatin is still lacking. CONCLUSION: Pharmacokinetic knowledge of chemotherapy may aid to guide retinoblastoma treatment in favor of safety and efficacy. Nonetheless, results obtained in preclinical models should be translated with care to the clinics.

Mortality outcomes after busulfan-containing conditioning treatment and haemopoietic cell transplantation in patients with Gilbert's syndrome: a retrospective cohort study.

BACKGROUND: Gilbert's syndrome is a common inherited disorder of bilirubin metabolism, characterised by mild, unconjugated hyperbilirubinaemia. However, the effect of Gilbert's syndrome on the disposition of some drugs can lead to unexpected toxicity. We tested the hypothesis that patients undergoing myeloablative conditioning and haemopoietic cell transplantation would have different mortality outcomes depending on whether or not they had laboratory evidence of Gilbert's syndrome. METHODS: In this retrospective cohort study, we used clinical and laboratory data of patients who had haemopoietic cell transplantation from Jan 1, 1991, to Dec 31, 2011. Patients were included if they had received high-dose conditioning regimens of cyclophosphamide plus total body irradiation (CY/TBI), busulfan plus cyclophosphamide (BU/CY), busulfan plus melphalan plus thioTEPA (BUMELTT), or melphalan before transplant. Patients were excluded if their original consent forms to report transplant outcomes were not signed, if consent was withdrawn, or if they were a prisoner. Patients with Gilbert's syndrome were defined as having laboratory values before the start of conditioning therapy for unconjugated serum bilirubin concentrations of at least 17·1 µmol/L (≥1 mg/dL), normal conjugated serum bilirubin, and no evidence of hepatitis, cholestasis, or haemolysis. We assessed the association of Gilbert's syndrome with overall mortality and non-relapse mortality using adjusted Cox regression models at day 200 after transplantation. FINDINGS: Our study cohort was 3379 patients-1855 (55%) allograft and 1524 (45%) autograft recipients. 211 (6%) patients had Gilbert's syndrome and 3168 (94%) did not have this condition. Most patients were adults (median age 45·8 years [IQR 33·2-55·5]) with haematological malignancies. For overall mortality 664 (20%) patients had died by day 200 after transplant (47 [22%] of 211 who had Gilbert's syndrome vs 617 [19%] of 3168 who did not have Gilbert's syndrome), and for non-relapse mortality 499 (92%) patients had died before relapse was recorded (38 [18%] who had Gilbert's syndrome vs 461 [15%] who did not have Gilbert's syndrome). The effect of Gilbert's syndrome on the risk of overall mortality and non-relapse mortality by transplant day 200 varied between the conditioning regimens and donor groups. In patients conditioned with a myeloablative regimen that contained busulfan (n=1131), those with Gilbert's syndrome (n=60) were at a significantly increased risk of death and non-relapse mortality by day 200 compared with those without Gilbert's syndrome (n=1071; hazard ratio [HR] 2·30, 95% CI 1·47-3·61, p=0·00030; and 2·77, 1·71-4·49, p<0·0001). In patients who received CY/TBI or melphalan conditioning regimens, those with Gilbert's syndrome had similar outcomes to those without Gilbert's syndrome (overall mortality at day 200 HR 0·90, 95% CI 0·60-1·34, p=0·60; non-relapse mortality at day 200: 0·90, 0·56-1·45, p=0·65). Analyses of causes of death and busulfan disposition provided no mechanistic explanation for the differences in mortality. INTERPRETATION: Overall mortality and non-relapse mortality at day 200 after transplant were significantly worse in patients with Gilbert's syndrome who received busulfan-containing myeloablative conditioning regimens, compared with non-Gilbert's syndrome patients. Patients with Gilbert's syndrome should receive busulfan-containing myeloablative conditioning regimens with caution. FUNDING: US National Institutes of Health.

Preclinical activity of melflufen (J1) in ovarian cancer.

Ovarian cancer carries a significant mortality. Since symptoms tend to be minimal, the disease is often diagnosed when peritoneal metastases are already present. The standard of care in advanced ovarian cancer consists of platinum-based chemotherapy combined with cytoreductive surgery. Unfortunately, even after optimal cytoreduction and adjuvant chemotherapy, most patients with stage III disease will develop a recurrence. Intraperitoneal administration of chemotherapy is an alternative treatment for patients with localized disease. The pharmacological and physiochemical properties of melflufen, a peptidase potentiated alkylator, raised the hypothesis that this drug could be useful in ovarian cancer and particularily against peritoneal carcinomatosis. In this study the preclinical effects of melflufen were investigated in different ovarian cancer models. Melflufen was active against ovarian cancer cell lines, primary cultures of patient-derived ovarian cancer cells, and inhibited the growth of subcutaneous A2780 ovarian cancer xenografts alone and when combined with gemcitabine or liposomal doxorubicin when administered intravenously. In addition, an intra- and subperitoneal xenograft model showed activity of intraperitoneal administered melflufen for peritoneal carcinomatosis, with minimal side effects and modest systemic exposure. In conclusion, results from this study support further investigations of melflufen for the treatment of peritoneal carcinomatosis from ovarian cancer, both for intravenous and intraperitoneal administration.

Isolated limb perfusion as a treatment option for rare types of tumours.

BACKGROUND: Isolated limb perfusion (ILP) is an established and effective treatment for advanced melanoma and soft tissue sarcomas of the extremities with a high overall response rate. The aim of this study was to describe our experience of ILP for more rare types of tumours. METHODS: Patients with Merkel cell carcinoma (MCC) (n = 4), squamous cell carcinoma (SCC) (n = 2), B-cell lymphoma (n = 1), desmoid tumours (n = 3), pigmented villonodular synovitis (PVNS) (n = 1) and giant cell tumour (n = 1) were treated with ILP and analysed retrospectively. RESULTS: The four patients with in-transit MCC had three complete responses (CR) and one partial response (PR); the two patients with SCC had one CR and one stable disease (SD); the patients with desmoid tumours had two PR and one SD. A CR was also observed for the patient with a giant cell tumour, but the patient with PVNS had a SD. The patient with cutaneous metastases of B-cell lymphoma showed a CR, however with rapid systemic progression. Local toxicity according to Wieberdink was grade II in 10 patients (83%) and grade III in two patients (17%). CONCLUSIONS: These results show that ILP can be used as a treatment option also for more rare disease entities when other treatments have failed.

Histological response assessment following neoadjuvant isolated limb perfusion in patients with primary, localised, high-grade soft tissue sarcoma.

PURPOSE: Histological response assessment following neoadjuvant treatment can help identify patients at a higher risk for systemic disease progression. Our goal was to evaluate whether mitotic count and the amount of viable tumour following neoadjuvant isolated limb perfusion (ILP) for primary, locally advanced, non-metastatic, high-grade extremity soft tissue sarcoma correlate with prognosis. PATIENTS AND METHODS: This study is a retrospective analysis of 61 patients who underwent neoadjuvant ILP followed by surgical resection with curative intent between 2001 and 2011. Non-parametric analyses were carried out with the Mann-Whitney U and the Wilcoxon signed-rank test. Survival curves were calculated with the Kaplan-Meier method and compared with the log-rank test. RESULTS: The median follow-up was 44 months for all patients and 55 months for survivors. The amount of viable tumour after ILP had no correlation with overall (OS) (P = 0.227) or event-free (EFS) (P = 0.238) survival probability. Patients with a low mitotic count after ILP had a significantly higher OS (P < 0.001), EFS (P = 0.002) and post-relapse survival probability (P = 0.030) compared to patients with an intermediate or high mitotic count. CONCLUSIONS: The mitotic count following ILP for primary, high-grade, locally advanced, non-metastatic soft tissue sarcoma appears to significantly correlate with prognosis. If these results are validated in a prospective setting, they could provide a rationale for the design of adjuvant systemic chemotherapy trials with the goal of improving the prognosis of patients with an intermediate or high mitotic count after ILP.

Hyperthermic isolated limb perfusion in locally advanced limb soft tissue sarcoma: A 24-year single-centre experience.

BACKGROUND: Hyperthermic isolated limb perfusion (HILP) is a locoregional treatment aimed at avoiding amputation in patients with advanced extremity soft tissue sarcomas (STS). Over the last 25 years, HILP procedure has been implemented to maximise its therapeutic ratio. METHODS: A retrospective analysis including 117 patients who underwent HILP from 1989 to 2013 was performed. Three different drug schedules were applied: 1) doxorubicin (n = 47), 2) high dose (3-4 mg) tumour necrosis factor-alpha (TNF-α) plus doxorubicin (n = 30), 3) low dose (1 mg) TNF-α plus melphalan (L-PAM) (n = 40). Tumour response was evaluated by MRI or CT and surgical specimens. Toxicity and local progression-free survival (LPFS) were also evaluated. RESULTS: In total 92 (78.6%) patients had primary, 25 (21.4%) had recurrent and 17 (14.5%) had metastatic disease. The subjects in the three groups were homogeneous for clinical-pathological features. Pathological response was complete in 55 patients (47%), partial in 35 (29.9%), regardless of drug schedule (p = 0.501) and tumour presentation (p = 0.094). Wieberdink III-V toxicity was registered in 19.1%, 20% and 2.5% of patients, respectively (p < 0.051). Twenty-eight patients (23.9%) received adjuvant radiotherapy with no relevant toxicity. Five-year LPFS was 81.6% and 74.2% in patients with primary or recurrent disease, respectively (p = 0.652). After a median follow-up of 36.5 months, the limb sparing rate was 77.8%. CONCLUSIONS: HILP performed with different drugs was equally active, either in primary, recurrent or metastatic STS, providing effective limb sparing and durable local control. Low dose TNF-α plus L-PAM had the most favourable toxicity profile. Adjuvant radiotherapy was not associated with relevant toxicity.

Lack of significant intraoperative coagulopathy in patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) indicates that epidural anaesthesia is a safe option.

PURPOSE: The purpose of this study is to evaluate the fluctuations of coagulation parameters during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) and confirm beyond doubt that epidural anaesthesia is safe with this type of operations. MATERIALS AND METHODS: This is a prospective clinical study of consecutive patients who had cytoreductive surgery and HIPEC. An epidural catheter was inserted into all patients. Peripheral venous blood samples in specific time points of the procedure were tested for complete blood count, prothrombin time (PT), activated partial thromboplastin time (aPTT), international normalised ratio (INR), fibrinogen, D-dimer, and expression of the GpIIb/IIIa platelet receptor. RESULTS: A total of 51 consecutive patients were included in this study. The initial mean (SD) platelet count decreased significantly to a mean of 250.6 (105.4) 10(9)/L (p < 0.001). Fibrinogen levels decreased to 295.9 (127.4) mg/dL (p = 0.009). D-dimer levels increased to 5.3 (3.1) mg/dL (p < 0.001). APTT increased from 30.8 (5.8) s to 35.1 (4.6). The mean INR increased significantly to 1.5 (0.5) (p < 0.001). The total number of GpIIb/IIIa platelet receptors showed no significant variation throughout the measurements and was 72603.2 before HIPEC, 80772.4 during, and 77432.1 after. All the parameters examined, despite significant fluctuations remained in levels that would permit perioperative epidural analgesia. No related complications were recorded. CONCLUSION: Our results support the belief that epidural analgesia is a safe option in cytoreductive surgery and HIPEC despite certain intraoperative fluctuations in coagulation parameters. It is of major importance to regulate any abnormalities observed during surgery. There are no available data regarding the occurrence of coagulopathy in the post-operative period.