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1.
Pediatr Blood Cancer ; 71(3): e30813, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38110844

RESUMEN

BACKGROUND: 6-Mercaptopurine (6MP) is the mainstay chemotherapy for acute lymphoblastic leukemia (ALL) and is conventionally available as 50 mg tablets. A new 6MP powder for oral suspension (PFOS 10 mg/mL) was developed recently by IDRS Labs, India, intended for pediatric use. A comparative pharmacokinetics of PFOS with T. mercaptopurine was conducted to determine the dose equivalence. METHODS: An open-label, randomized, two-treatment, two-period, two-sequence, single oral dose, crossover, bioequivalence study was conducted on 51 healthy adult subjects. Post hoc, a population pharmacokinetic (PopPK) model was developed using the healthy volunteer data to perform simulations with various PFOS doses and select a bioequivalent dose. Further, to confirm the safety of PFOS in pediatrics, a simulation of 6MP and 6-thioguanine exposures was performed by incorporating the formulation-specific parameters derived from the healthy volunteer study into the PopPK model in childhood ALL available in literature. RESULTS: The 6MP PFOS had 47% higher oral bioavailability compared to the reference product. Simulations using a two-compartmental PopPK model with dissolution and transit compartments showed that 40 mg of PFOS was found to be equivalent to 50 mg tablets. The simulated 6-thioguanine nucleotide concentrations in children using the dose adjusted for PFOS were between 114 and 703.6 pmol/8 × 108 RBC, which was within the range reported in pediatric ALL studies. CONCLUSION: 6MP PFOS 10 mg/mL should be administered at a 20% lower dose than the tablet to achieve comparable exposure. 6MP PFOS addresses an unmet medical need for a liquid formulation of 6MP in the Indian subcontinent.


Asunto(s)
Mercaptopurina , Leucemia-Linfoma Linfoblástico de Células Precursoras , Adulto , Niño , Humanos , Administración Oral , Estudios Cruzados , Mercaptopurina/administración & dosificación , Polvos , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamiento farmacológico , Comprimidos , Equivalencia Terapéutica , Tioguanina
2.
Pediatr Radiol ; 2024 Jun 03.
Artículo en Inglés | MEDLINE | ID: mdl-38831055

RESUMEN

BACKGROUND: Multiple differentials exist for pediatric liver tumors under 2 years. Accurate imaging diagnosis may obviate the need for tissue sampling in most cases. OBJECTIVE: To evaluate the imaging features and diagnostic accuracy of computed tomography (CT) in liver tumors in children under 2 years. METHODS: Eighty-eight children under 2 years with treatment naive liver neoplasms and baseline contrast-enhanced CT were included in this institutional review board approved retrospective study. Two blinded onco-radiologists assessed these tumors in consensus. Findings assessed included enhancement pattern, lobulated appearance, cystic change, calcifications, central scar-like appearance, and metastases. The radiologists classified the lesion as hepatoblastoma, infantile hemangioma, mesenchymal hamartoma, rhabdoid tumor, or indeterminate, first based purely on imaging and then after alpha-fetoprotein (AFP) correlation. Multivariate analysis and methods of comparing means and frequencies were used for statistical analysis wherever applicable. Diagnostic accuracy, sensitivity, and positive predictive values were analyzed. RESULTS: The mean age of the sample was 11.4 months (95% CI, 10.9-11.8) with 50/88 (57%) boys. The study included 72 hepatoblastomas, 6 hemangiomas, 4 mesenchymal hamartomas, and 6 rhabdoid tumors. Presence of calcifications, multilobular pattern of arterial enhancement, lobulated morphology, and central scar-like appearance was significantly associated with hepatoblastomas (P-value < 0.05). Fourteen out of eighty-eight lesions were called indeterminate based on imaging alone; six lesions remained indeterminate after AFP correlation. Pure radiology-based diagnostic accuracy was 81.8% (95% CI, 72.2-89.2%), which increased to 92.1% (95% CI, 84.3-96.7%) (P-value > 0.05) after AFP correlation, with one hepatoblastoma misdiagnosed as a rhabdoid tumor. If indeterminate lesions were excluded for biopsy, the accuracy would be 98.8% (95% CI, 93.4-99.9%). CONCLUSION: CT had high accuracy for diagnosing liver neoplasms in the under 2-year age population after AFP correlation. Certain imaging features were significantly associated with the diagnosis of hepatoblastoma. A policy of biopsying only indeterminate lesions after CT and AFP correlation would avoid sampling in the majority of patients.

3.
Bull World Health Organ ; 101(9): 587-594, 2023 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-37638358

RESUMEN

In health systems with little public funding and decentralized procurement processes, the pricing and quality of anti-cancer medicines directly affects access to effective anti-cancer therapy. Factors such as differential pricing, volume-dependent negotiation and reliance on low-priced generics without any evaluation of their quality can lead to supply and demand lags, high out-of-pocket expenditures for patients and poor treatment outcomes. While pooled procurement of medicines can help address some of these challenges, monitoring of the procurement process requires considerable administrative investment. Group negotiation to fix prices, issuing of uniform contracts with standardized terms and conditions, and procurement by individual hospitals also reduce costs and improve quality without significant investment. The National Cancer Grid, a network of more than 250 cancer centres in India, piloted pooled procurement to improve negotiability of high-value oncology and supportive care medicines. A total of 40 drugs were included in this pilot. The pooled demand for the drugs from 23 centres was equivalent to 15.6 billion Indian rupees (197 million United States dollars (US$)) based on maximum retail prices. The process included technical and financial evaluation followed by contracts between individual centres and the selected vendors. Savings of 13.2 billion Indian Rupees (US$ 166.7million) were made compared to the maximum retail prices. The savings ranged from 23% to 99% (median: 82%) and were more with generics than innovator and newly patented medicines. This study reveals the advantages of group negotiation in pooled procurement for high-value medicines, an approach that can be applied to other health systems.


Lorsque les systèmes de santé reçoivent peu de fonds publics et que leurs processus d'achat sont décentralisés, le prix et la qualité des médicaments contre le cancer ont un impact direct sur l'accès aux traitements efficaces contre la maladie. Des facteurs tels que l'application de prix différenciés, les négociations en fonction des volumes ainsi que la confiance placée dans des génériques bon marché dont la qualité n'a pas été évaluée peuvent entraîner des décalages entre l'offre et la demande, d'énormes dépenses non remboursables pour les patients et de piètres résultats thérapeutiques. Bien que les acquisitions groupées de médicaments puissent contribuer à résoudre certains de ces problèmes, le suivi du processus d'achat requiert un engagement considérable au niveau administratif. Les négociations collectives en vue de fixer les tarifs, l'établissement de contrats types assortis de conditions générales standardisées, mais aussi les achats effectués par des hôpitaux en particulier peuvent également faire baisser les coûts et améliorer la qualité sans nécessiter d'importants investissements. Le National Cancer Grid, un réseau réunissant plus de 250 centres d'oncologie en Inde, a testé un dispositif d'achat groupé visant à assurer une meilleure négociabilité pour des médicaments et soins de soutien essentiels contre le cancer. Au total, 40 substances ont été prises en compte dans ce projet pilote. La demande groupée en médicaments émise par 23 centres équivalait à 15,6 milliards de roupies indiennes (197 millions de dollars américains) d'après le prix maximal de vente au détail. Ce processus prévoyait une évaluation technique et financière, puis des contrats entre chaque centre et les distributeurs sélectionnés. Des économies de 13,2 milliards de roupies indiennes (166,7 millions de dollars américains) ont pu être réalisées par rapport au prix maximal de vente au détail. Ces économies étaient comprises entre 23 et 99% (médiane: 82%) et concernaient davantage les médicaments génériques que les marques et les médicaments récemment brevetés. La présente étude révèle les avantages que représentent les négociations collectives lors des achats groupés de médicaments essentiels, une approche applicable à d'autres systèmes de santé.


En los sistemas sanitarios con escasa financiación pública y procesos de adquisición descentralizados, el sistema de fijación de precios y la calidad de los medicamentos contra el cáncer afectan directamente al acceso a una terapia eficaz contra dicha enfermedad. Factores como los diferentes sistemas de determinación de precios, la negociación en función del volumen y la dependencia de genéricos de bajo precio sin evaluación de su calidad pueden generar retrasos en la oferta y la demanda, elevados gastos para los pacientes y malos resultados en el tratamiento. Aunque la adquisición conjunta de medicamentos puede ayudar a abordar algunos de estos retos, el seguimiento del proceso de adquisición requiere una inversión administrativa considerable. La negociación colectiva a la hora de determinar los precios, la emisión de contratos unificados con términos y condiciones estandarizados y la adquisición por parte de algunos hospitales también reducen los costes y mejoran la calidad sin necesidad de realizar una gran inversión. La Red Nacional de Cáncer, una red que cuenta con más de 250 centros oncológicos en la India, puso a prueba la adquisición conjunta con el fin de mejorar la negociabilidad de medicamentos oncológicos y de tratamiento complementario que resultaban costosos. En esta prueba piloto se incluyó un total de 40 medicamentos. La demanda conjunta de medicamentos por parte de 23 centros fue equivalente a 15 600 millones de rupias indias (197 millones USD) según los precios minoristas máximos. El proceso incluyó una evaluación técnica y financiera, así como contratos entre centros independientes y proveedores seleccionados. Se logró un ahorro de 13 200 millones de rupias indias (166,7 millones USD) en comparación con los precios minoristas máximos. El ahorro osciló entre el 23 y el 99% (media: 82%) y fue más alto con los medicamentos genéricos que con los de marca y los recién patentados. Este estudio pone de manifiesto las ventajas de la negociación colectiva en lo que respecta a la adquisición conjunta de medicamentos costosos, un enfoque que se puede aplicar a otros sistemas sanitarios.


Asunto(s)
Neoplasias , Humanos , Neoplasias/tratamiento farmacológico , Medicamentos Genéricos , Gastos en Salud , Hospitales , India
4.
Pediatr Blood Cancer ; : e30547, 2023 Jul 06.
Artículo en Inglés | MEDLINE | ID: mdl-37409841

RESUMEN

Sepsis-related mortality continues to be a major concern while treating pediatric cancer patients, more so with the rise in the incidence of multidrug-resistant organisms (MDRO). In this retrospective study conducted between January 2021 and December 2022 at a tertiary cancer center in India, granulocyte transfusion was offered in addition to standard antimicrobial therapy to 64 children with hematolymphoid malignancy who developed 75 episodes of severe sepsis following intensive chemotherapy. Forty-four (83%) of 53 blood culture proven sepsis was caused by MDROs. Thirty-seven (70%) patients with blood culture proven sepsis cleared the organism after granulocyte transfusion. Thirty-day mortality was 25% for the entire study cohort and 32% for patients with MDRO sepsis.

5.
Pediatr Blood Cancer ; : e30475, 2023 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-37277316

RESUMEN

BACKGROUND: While anthracycline therapy has been shown to improve outcomes in Ewing sarcoma, it may be associated with severe and even fatal cardiac dysfunction. We evaluated the burden and determinants of cardiac dysfunction in pediatric Ewing sarcoma (pES). METHODS: This retrospective study included children aged 0-18 years with pES treated at our center with the EFT 2001 protocol (anthracycline and cyclophosphamide containing regimen), with/without radiation therapy from January 2001 to December 2018. Cardiac dysfunction was defined as left ventricular (LV) ejection fraction with an absolute value <50%. RESULTS: Amongst 650 eligible patients (median age at diagnosis 12 years and median follow-up duration 69 months), 85 (13%) developed cardiac dysfunction, at a median 13 months (range: 1-168 months). The cumulative incidence of cardiac dysfunction was 5.7% at 12 months, 12% at 2 years, 13% at 3 years, 14% at 5 years, and 15 % at 10 years. At a median follow-up duration of 25 (range: 3-212) months, 21 (24.7%) patients had normalization of LV function, whereas nine (10.6%) patients died of cardiac causes. Older age at diagnosis (7-12 years OR 5.1, p = .01, 13-18 years, OR 3.9, p = .03), female sex (OR 2.3, p = .004), undernutrition (OR 2.9, p = .001), and chest wall location (OR 8.7, p = .08) were risk factors for cardiac dysfunction. CONCLUSIONS: Children with Ewing sarcoma have a high incidence of cardiac dysfunction, which continues to develop even years after therapy, underlining the need for life-long surveillance. Undernourished children are at a higher risk for cardiac dysfunction and need stringent monitoring.

6.
Pediatr Blood Cancer ; 70(2): e30096, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36401555

RESUMEN

BACKGROUND AND AIMS: Thrombotic events (TEs) have been extensively studied in adult cancer patients, but data in children are limited. We prospectively analyzed pediatric cancer-associated thrombosis (PCAT) in children with malignancies. METHODS: Children below 15 years of age with confirmed malignancies, treated at a large tertiary cancer center in India from July 2015 to March 2020 developing any TE were eligible. A standardized approach for detection and management was followed. Data were collected after informed consent. RESULTS: Of 6132 eligible children, 150 (2.44%) had 152 TEs, with median age 8.5 years and male:female of 1.83:1. Most TEs occurred on chemotherapy: 111 (74.0%). The most common site was central nervous system (CNS) 59 (39.3%), followed by upper-limb venous system 37 (24.7%). Hemato-lymphoid (HL) malignancies were more prone to PCAT than solid tumors (ST) (incidence 3.23% vs. 1.58%; odds ratio [OR] = 2.06, 95% confidence interval [CI] [1.36-2.88]; p < .001). Malignancies associated with PCAT were acute lymphoblastic leukemia (ALL) 2.94%, acute myeloid leukemia (AML) 6.66%, and non-Hodgkin lymphomas 5.35%. Response imaging done in 106 (70.7%) children showed complete to partial resolution in almost 90% children. Death was attributable to TE in seven (4.66%) children. Age above 10 years (OR 2.33, 95% CI [1.59-3.41]; p < .001), AML (OR 4.62, 95% CI [1.98-10.74]; p = .0062), and non-Hodgkin lymphoma (OR 4.01, 95% CI [1.15-14.04]; p = .029) were significantly associated with TEs. In ALL, age more than 10 years (OR 1.86, 95% CI [1.06-3.24]; p < .03), T-ALL (OR 3.32, 95% CI [1.69-6.54]; p = .001), and intermediate-risk group (OR 4.97, 95% CI [1.12-22.02]; p = .035) were significantly associated with thrombosis. The 2-year event-free survival (EFS) for HL malignancies with PCAT was 55.3% versus 72.1% in those without PCAT (p = .05), overall survival (OS) being 84.6% versus 80.0% (p = .32). CONCLUSION: Incidence of PCAT was 2.4%, and occurred predominantly in older children with hematolymphoid malignancies early in treatment. Most resolved completely with low molecular weight heparin (LMWH) and mortality was low. In hematolymphoid malignancies, PCAT reduce EFS, highlighting the need for prevention.


Asunto(s)
Leucemia Mieloide Aguda , Linfoma no Hodgkin , Leucemia-Linfoma Linfoblástico de Células Precursoras , Trombosis , Niño , Adulto , Humanos , Masculino , Femenino , Heparina de Bajo-Peso-Molecular , Atención Terciaria de Salud , Trombosis/epidemiología , Trombosis/etiología , Trombosis/patología , Leucemia-Linfoma Linfoblástico de Células Precursoras/patología , Leucemia Mieloide Aguda/complicaciones
7.
Pediatr Blood Cancer ; 70(4): e30179, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36645132

RESUMEN

BACKGROUND AND AIMS: Data on the outcome and prognostic indicators in extracranial relapsed/refractory germ cell tumors (rel/ref-GCTs) in children are limited to a few studies. This study looks at remission rates and outcomes of rel/ref-GCTs treated with conventional salvage chemotherapy (SC) regimens without stem cell rescue at a single center in the developing world. METHODS: Patients treated at our center from January 2009 to December 2018 were included. Risk at primary presentation was stratified as all completely excised teratomas and stage I gonadal tumors being low risk (LR); stage IV ovarian, stage III-IV extragonadal GCTs as high risk (HR), and the remaining as intermediate risk (IR). SC regimens were: vinblastine-ifosfamide-cisplatin/carboplatin or paclitaxel-ifosfamide-cisplatin/carboplatin, or cisplatin/carboplatin-etoposide-bleomycin. Local therapy was either surgery and/or radiotherapy. RESULTS: The analyzable cohort comprised 50 patients (44 = rel-GCTs; 6 = ref-GCTs) with a median age of 3.8 years and male:female ratio of 1.27:1. Primary location was ovary in 16 (32%), testicular in 10 (20%), and extragonadal in the rest (48%). Local, metastatic, and combined progression was noted in 28 (56%), 14 (28%), and eight (16%) patients, respectively, at a median time of 8.5 months. At a median follow-up of 60 months, the 5-year event-free survival (EFS) and overall survival (OS) of the entire cohort (n = 50) were 42.4% and 50.0%, respectively. In patients previously exposed to platinum analogs (n = 38), 5-year-EFS and OS were 27.7% and 31.7%, respectively. Local relapses did better when compared to metastatic and combined relapses (5-year EFS: 64% vs. 23% vs. 0%; p = .009). LR and IR tumors did better compared to HR (5-year EFS: 81.5% vs. 49.3% vs. 6.5%; p = .002). Patients with normalization of tumor markers after two cycles had a superior EFS (57.6% vs. 0%; p < .001). Relapsed tumors fared better than primary refractory GCTs (5-year EFS: 48.6% vs. 0%; p < .001). CONCLUSIONS: Primary refractory GCTs, extragonadal rel-GCTs, and rel/ref-GCTs with a poor biochemical response did poorly with conventional SC and need alternative treatment strategies. The rel/ref-testicular GCTs had the best chance of salvage despite a second recurrence (5-year EFS and OS: 28.60% and 42.90%, respectively).


Asunto(s)
Neoplasias de Células Germinales y Embrionarias , Neoplasias Testiculares , Niño , Humanos , Masculino , Femenino , Preescolar , Carboplatino , Cisplatino , Ifosfamida , Etopósido , Recurrencia Local de Neoplasia/patología , Neoplasias de Células Germinales y Embrionarias/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Terapia Recuperativa , Neoplasias Testiculares/terapia
8.
Pediatr Blood Cancer ; 70(7): e30302, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37046413

RESUMEN

BACKGROUND: Not all the significant progress made in the management of children with hepatoblastoma (HB) has translated into improved outcomes in limited-resource settings. There are limited data on outcomes in children with HB from India. METHODS: All patients diagnosed with HB between July 2013 and December 2020 were risk-stratified and treated as per International Liver Tumor Strategy Group (SIOPEL). Patients with standard-risk HB received cisplatin monotherapy and those with high-risk HB received alternating cycles of cisplatin and the combination of carboplatin plus doxorubicin. Data regarding demographic details, chemotherapy, surgery, liver transplantation, outcomes, prognostic factors, and toxicity were collected. RESULTS: Of 157 patients with HB, 117 (74%) were high risk, 31 (20%) were standard risk, and nine (6%) unknown. Patients with standard-risk disease had excellent outcomes, with 3-year event-free survival (EFS) and overall survival (OS) of 96% and 100%, respectively. Among high-risk HB, six underwent orthotopic liver transplantation of which four were alive at last follow-up. The 3-year EFS and OS of patients with high-risk disease was 56% and 66%, respectively. Outcomes of patients with PRETEXT IV (3-year EFS: 42%, 3-year OS: 50%) and metastatic disease (3-year EFS: 30%, 3-year OS: 50%) were dismal. Patients with serum alpha-fetoprotein (AFP) reduction greater than 90% following two courses of chemotherapy had favorable outcomes; 3-year EFS: 80% versus 58% (p = .013) and 3-year OS: 95% vs. 68% (p < .01). Only two (6%) of 31 patients with relapse/refractory HB were alive at a median follow-up of 36 months, and both had received salvage chemotherapy and surgery. CONCLUSIONS: While children with standard-risk HB had excellent outcomes, those with high-risk disease continue to do poorly. Serial monitoring of serum AFP values is a cost-effective and reliable predictor of outcomes. Orthotopic liver transplantation remains a viable option for inoperable disease in resource-limited settings as well.


Asunto(s)
Hepatoblastoma , Neoplasias Hepáticas , Niño , Humanos , Lactante , Hepatoblastoma/patología , Cisplatino , Pronóstico , alfa-Fetoproteínas , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Recurrencia Local de Neoplasia/patología , Neoplasias Hepáticas/patología , Resultado del Tratamiento , Carboplatino , Doxorrubicina
9.
J Pediatr Hematol Oncol ; 45(3): e363-e369, 2023 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-36251857

RESUMEN

BACKGROUND: Persisting residual masses at treatment completion are known in rhabdomyosarcoma (RMS) treated with definitive radiotherapy (RT) to the primary site, but their prognostic significance is uncertain. Tumor response as assessed by anatomic imaging is not prognostic and studies based on 18 F-FDG-PET response are limited. We report the prognostic significance of persistent FDG-avidity in residual masses, assessed 3-month postdefinitive RT, in pediatric RMS. MATERIALS AND METHODS: Children 15 years old or below with Group III/IV RMS who received only definitive radiotherapy for local control from June 2013 to December 2018, and had 18 F-FDG-PET CT at 3 months post-RT were retrospectively analyzed for outcomes and other prognostic factors. RESULTS: Sixty-three children were eligible (Group III-55, Group IV-8). 18 F-FDG-PET CT scan done 3 months postradiotherapy showed FDG-avid residual masses in 10 patients (15.9%), anatomic residual in 24 (38.1%), and no anatomic/FDG-avid residual in 29(46.0%). At a median follow-up of 38 months (interquartile range, 24 to 55 mo), 3-year EFS of patients with FDG-avid residual masses was 40.0% (95% CI: 18.7% to 85.5%) versus the rest of the cohort, which was 71.9% (95% CI: 59.8% to 86.5%) ( P =0.008). Three-year OS of patients with FDG-avid residual masses was 50.8% (95% CI: 25.7% to 100.0%) versus the rest of the cohort, which was 77.0% (95% CI: 65.1% to 91.0%) ( P =0.037). Presence of FDG-avid residual disease persisting post-RT affected both EFS [HR-3.34 (95% CI: 1.29 to 8.68) ( P =0.013)] and OS [HR-3.20 (95% CI: 1.01 to 10.12) ( P =0.048)] on univariate analysis and this significance was retained for EFS in multivariate analysis [HR-3.52 (95% CI: 1.33 to 9.30) ( P =0.011)]. CONCLUSIONS: Persistent metabolic activity in residual disease post-chemoradiotherapy in RMS may portend a poorer prognosis with an increased risk of relapse. This subset of high-risk patients needs to be identified, and further trials are warranted to develop strategies to improve their outcomes.


Asunto(s)
Fluorodesoxiglucosa F18 , Rabdomiosarcoma , Humanos , Niño , Adolescente , Estudios Retrospectivos , Recurrencia Local de Neoplasia , Tomografía de Emisión de Positrones/métodos , Pronóstico , Rabdomiosarcoma/diagnóstico por imagen , Rabdomiosarcoma/radioterapia , Tomografía Computarizada por Tomografía de Emisión de Positrones , Radiofármacos
10.
J Clin Apher ; 38(6): 703-710, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37560907

RESUMEN

BACKGROUND: Hemato-oncologic patients receiving intensive chemotherapy may develop severe neutropenia and serious bacterial and/or fungal infections. Granulocyte transfusions (GTs) may be beneficial as a bridging therapy in hemato-oncologic patients with febrile neutropenia. AIM: To evaluate the clinical effectiveness of GTs in hemato-oncologic patients with febrile neutropenia. MATERIALS AND METHODS: This retrospective study evaluated the effectiveness of 150 GTs in 88 hemato-oncologic patients. Donors were mobilized with granulocyte colony-stimulating factors and dexamethasone. Patients' hematological parameters (pre- and post-GT) and safety and effectiveness of GTs were analyzed. RESULTS: The safety and effectiveness of GTs were assessed in the patients with various underlying conditions, including 78% with acute myeloid leukemia. In total, 150 GTs were administered, mostly during the chemotherapy induction phase. The GTs were well-tolerated by the patients, and a significant increment in white blood cell count and absolute neutrophil count (ANC) was noticed in 95% of patients after the transfusion. The granulocyte dose was positively correlated with ANC after the transfusion. The average time to neutrophil recovery from the last day of GT was 6.7 days, and the 30-day survival rate was 77%. The donors were all men, and a significant increase in WBC count was observed post-mobilization. The median granulocyte yield was 2.28 × 1010 /unit. All granulocyte products were crossmatched and irradiated before the transfusion. CONCLUSION: GTs can be a useful adjunctive treatment for febrile neutropenia in hemato-oncologic patients with multidrug-resistant sepsis. However, additional studies are required for confirming their effectiveness and establishing guidelines for their use.


Asunto(s)
Neutropenia Febril , Granulocitos , Masculino , Humanos , Estudios Retrospectivos , Neutrófilos , Transfusión de Leucocitos , Factor Estimulante de Colonias de Granulocitos/uso terapéutico , India , Neutropenia Febril/terapia
11.
Strahlenther Onkol ; 198(3): 291-303, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35059761

RESUMEN

PURPOSE: Imaging features are known to reflect inherent disease biology in various cancers including brain tumors. We report on the prognostic impact of magnetic resonance imaging (MRI) features on survival in patients with medulloblastoma treated between 2007 and 2018 at our institute. METHODS: Sixteen semantic imaging features (with predefined categories) were extracted from pre- and postcontrast T1-weighted and T2-weighted MRI by consensus. Univariate analysis and multivariate Cox regression analysis were performed to assess the correlation of semantic features with relapse-free survival (RFS) and overall survival (OS). RESULTS: The study cohort comprised 171 medulloblastoma patients (median age 9 years) treated with maximal safe resection followed by risk-stratified adjuvant radio(chemo)therapy. A total of 55 patients experienced recurrent/progressive disease (commonly neuraxial metastases) resulting in 44 deaths, including one treatment-related death. At a median follow-up of 45 months (interquartile range 19-65 months), 5­year Kaplan-Meier estimates of RFS and OS were 64% and 71%, respectively. Semantic MRI features such as non-central tumor location on vertical axis, absence of brainstem involvement, ≤ 80% solid tumor area with contrast uptake, heterogenous pattern of contrast enhancement, necrosis, calcification, and T2-weighted heterogeneity were associated with significantly worse RFS and/or OS in univariate analysis. Cox regression analysis identified tumor location on the vertical axis, brainstem involvement, and calcification as independent prognostic factors impacting outcomes. Distinctive MRI features correlated with survival even within individual molecular subgroups of medulloblastoma. CONCLUSION: Distinctive semantic MRI features correlate significantly with survival outcomes in medulloblastoma, also within individual molecular subgroups, reflecting their prognostic impact.


Asunto(s)
Neoplasias Cerebelosas , Meduloblastoma , Neoplasias Cerebelosas/diagnóstico por imagen , Neoplasias Cerebelosas/terapia , Niño , Humanos , Imagen por Resonancia Magnética/métodos , Meduloblastoma/diagnóstico por imagen , Meduloblastoma/terapia , Recurrencia Local de Neoplasia , Pronóstico , Estudios Retrospectivos , Semántica
12.
Psychooncology ; 31(2): 253-259, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34435720

RESUMEN

OBJECTIVE: Families of children with cancer undergoing treatment during COVID-19 pandemic represent a vulnerable population for psychological distress and early identification and remedial measures are imperative for wellbeing of both the children and the caregivers. This article reports the results of assessment of psychological distress in primary caregivers of children with cancer undergoing treatment at a tertiary care center. METHODS: Primary caregivers of children with cancer (≤15 years) taking treatment at our institute during the period of July 2020 to August 2020 were prospectively evaluated for psychological distress using Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7) tools over a telephonic call. There were 2 cohorts, A and B (50 participants each) depending on whether child was diagnosed with COVID-19 or not respectively during the study period. RESULTS: The assessment tool, PHQ-9 showed a score of ≥10 in 13% (n = 13) participants (95%CI:7.1%-21.2%) in the entire cohort and in 16% (n = 8, 95%CI:5.8%-26.2%) and 10% (n = 5, 95%CI:1.7%-18.3%) participants in cohort A and cohort B respectively. GAD-7 showed a score of ≥8 in 18% (n = 18) participants (95%CI:11.0%-27.0%) in the entire cohort and in 20% (n = 10, 95%CI:8.9%-31.1%) and 16% (n = 8, 95%CI:5.8%-26.2%) participants in cohort A and cohort B respectively. All participants were assessed, and supportive psychotherapeutic interventions administered over telephonic call. CONCLUSIONS: Primary caregivers should be assessed and followed up for psychological distress irrespective of other co-existing factors. Robust support systems built over time could help withstand the exceptional strain of a major surge during a pandemic.


Asunto(s)
COVID-19 , Neoplasias , Distrés Psicológico , Cuidadores , Niño , Humanos , Pandemias , SARS-CoV-2 , Centros de Atención Terciaria
13.
Pediatr Blood Cancer ; 69(7): e29728, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35441780

RESUMEN

BACKGROUND: The management of malnutrition in children with cancer remains a challenge in low-middle-income countries (LMICs). We describe our pediatric oncology nutrition program and its impact over the past decade. METHODS: We evaluated the impact of our nutrition program in accordance with the International Society of Paediatric Oncology-Paediatric Oncology in Developing Countries (SIOP PODC) Nutritional Program Evaluation in the areas of service delivery (number served, increments in delivery, number of trained care providers), patients at-risk (proportion identified with malnutrition at diagnosis/follow-up), and efficiency of nutritional interventions (proportion assessed, proportion achieved healthy weight, clinicians trained). We analyzed available data for trends between 2009 and 2020, and comparisons were made using the Fisher t test. This study was approved by our institutional ethics committee. RESULTS: From 2010 to 2020, 17 749 children treated at our center were beneficiaries of the nutritional program, including assessment and intervention. During this period, trained pediatric nutritionists increased from 2 to 8; SIOP PODC level from 2 to 3-4, and nutrition budget increased 15-fold. At diagnosis (n = 5618) and six-month follow-up (n = 2674), 59.6% and 51.2% children were undernourished, 34.8% and 43% well nourished, and 4.7% and 5.7% overnourished. From 2016 onward, fewer children were undernourished at follow-up-69.5% (2016), 60% (2018), 54% (2019), and 55% (2020, P < 0.001). The program helped train over 500 clinicians in nutrition. CONCLUSIONS: Improved financial support and capacity building have helped build and sustain an effective nutrition program. Priority areas include implementation of best practices, early nutritional intervention, continued education, and locally relevant research.


Asunto(s)
Neoplasias , Terapia Nutricional , Niño , Países en Desarrollo , Humanos , Oncología Médica/educación , Neoplasias/terapia , Estado Nutricional
14.
Pediatr Blood Cancer ; 69(7): e29765, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35561025

RESUMEN

BACKGROUND: The purpose of this single-center study was to analyze the outcomes of extracranial germ cell tumors (GCTs) in children treated on a multimodality regimen. METHODS: Retrospective study of children (<18 years) with a histopathologically confirmed diagnosis of extracranial GCT over a period of 10 years (January 2009 to December 2018) treated on a uniform institution-based protocol consisting of both cisplatin- and carboplatin-based regimens. All completely excised teratomas and stage I gonadal tumors received no further therapy (low risk [LR]); stage IV ovarian, stage III-IV extragonadal GCTs received six cycles of chemotherapy (high risk [HR]), and the remaining received four cycles of chemotherapy (intermediate risk [IR]). RESULTS: A total of 297 children were treated with a female:male ratio of 1.72:1 and median age of 4 years. Forty-three children had pure teratomas. Gonadal GCTs (N = 180) were more common than extragonadal GCTs (N = 117) with ovary as primary site in 128 children (43%) and sacrococcygeal site being the commonest extragonadal location (N = 41; 14%). LR, IR, and HR disease were noted in 60 (20.2%), 125 (42%), and 112 (37.8%) patients, respectively. Three-fourths of ovarian tumors and half of testicular tumors operated prior to presentation needed upstaging. Forty-one patients relapsed and 43 children expired (disease-related: 33; toxic deaths: 9; unknown: 1). The 5-year event-free survival (EFS)/overall survival (OS) of malignant GCT (n = 254) was 72.50%/82.70%, respectively, with gonadal site (p = .001), LR and IR (p = .001) and nonmetastatic disease (p = .001) being favorable prognostic variables. CONCLUSIONS: The LR and IR GCTs in our cohort had an excellent outcome. A significant proportion of IR gonadal GCTs can be spared of systemic chemotherapy by adhering to strict surgical guidelines. In HR GCTs however, intensifying therapies to improve outcomes must be balanced against the risk of cumulative toxicity, more so in a resource-limited setting.


Asunto(s)
Neoplasias de Células Germinales y Embrionarias , Teratoma , Neoplasias Testiculares , Adolescente , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Niño , Preescolar , Femenino , Humanos , Masculino , Neoplasias de Células Germinales y Embrionarias/tratamiento farmacológico , Pronóstico , Estudios Retrospectivos , Teratoma/tratamiento farmacológico , Neoplasias Testiculares/patología
15.
Support Care Cancer ; 30(4): 3303-3311, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-34985560

RESUMEN

PURPOSE: The COVID pandemic has greatly impacted cancer care, with survivorship care being accorded low priority. We aimed to assess the impact of the COVID pandemic on survivorship services at our centre, as well as on survivors of childhood cancer (CCS). METHODS: We analyzed the trends in survivorship care at our centre from March 2020 to June 2021 compared to previous years. We also conducted an online survey of adolescent and young adult (AYA-CCS) following up at the After Completion of Treatment Clinic, Mumbai, to assess the impact of the COVID pandemic and ensuing restrictions on our cohort of survivors. Sibling responses were used as comparator (CTRI/2020/11/029029). RESULTS: There was a decrease in in-person follow-ups and increase in remote follow-ups over the first few months of the pandemic. While in-person visits steadily increased after October 2020 and reached pre-pandemic numbers, distant follow-ups continue to be higher than pre-pandemic. Evaluable responses from the survey of 88 AYA-CCS and 25 siblings revealed new-onset health concerns in 29.5% of AYA-CCS, missed follow-up visit in 52% and varying degrees of mental health issues in 12.5%. While most survivors were able to cope with the stresses of the pandemic, 20% of siblings reported being unable to cope. CONCLUSIONS: Survivorship services continue to be affected well into the pandemic, with increased use of distant follow-ups. While AYA-CCS experienced significant physical, mental health issues and psychosocial concerns as a result of the COVID pandemic, they coped better than siblings during this stressful time, possibly due to multiple, holistic support systems including family, peer support groups and healthcare team.


Asunto(s)
COVID-19 , Supervivientes de Cáncer , Neoplasias , Adolescente , Supervivientes de Cáncer/psicología , Niño , Humanos , Neoplasias/epidemiología , Neoplasias/psicología , Neoplasias/terapia , Pandemias , SARS-CoV-2 , Sobrevivientes , Supervivencia , Adulto Joven
16.
Lancet Oncol ; 22(8): e369-e376, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-34216541

RESUMEN

Low-income and middle-income countries (LMICs) have a disproportionately high burden of cancer and cancer mortality. The unique barriers to optimum cancer care in these regions necessitate context-specific research. The conduct of research in LMICs has several challenges, not least of which is a paucity of formal training in research methods. Building capacity by training early career researchers is essential to improve research output and cancer outcomes in LMICs. The International Collaboration for Research methods Development in Oncology (CReDO) workshop is an initiative by the Tata Memorial Centre and the National Cancer Grid of India to address gaps in research training and increase capacity in oncology research. Since 2015, there have been five CReDO workshops, which have trained more than 250 oncologists from India and other countries in clinical research methods and protocol development. Participants from all oncology and allied fields were represented at these workshops. Protocols developed included clinical trials, comparative effectiveness studies, health services research, and observational studies, and many of these protocols were particularly relevant to cancer management in LMICs. A follow-up of these participants in 2020 elicited an 88% response rate and showed that 42% of participants had made progress with their CReDO protocols, and 73% had initiated other research protocols and published papers. In this Policy Review, we describe the challenges to research in LMICs, as well as the evolution, structure, and impact of CReDO and other similar workshops on global oncology research.


Asunto(s)
Investigación sobre Servicios de Salud , Oncología Médica/educación , Neoplasias , Creación de Capacidad , Países en Desarrollo , Educación , Humanos , India
17.
Lancet Oncol ; 22(7): 970-976, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-34051879

RESUMEN

BACKGROUND: The COVID-19 pandemic has disrupted health-care systems, leading to concerns about its subsequent impact on non-COVID disease conditions. The diagnosis and management of cancer is time sensitive and is likely to be substantially affected by these disruptions. We aimed to assess the impact of the COVID-19 pandemic on cancer care in India. METHODS: We did an ambidirectional cohort study at 41 cancer centres across India that were members of the National Cancer Grid of India to compare provision of oncology services between March 1 and May 31, 2020, with the same time period in 2019. We collected data on new patient registrations, number of patients visiting outpatient clinics, hospital admissions, day care admissions for chemotherapy, minor and major surgeries, patients accessing radiotherapy, diagnostic tests done (pathology reports, CT scans, MRI scans), and palliative care referrals. We also obtained estimates from participating centres on cancer screening, research, and educational activities (teaching of postgraduate students and trainees). We calculated proportional reductions in the provision of oncology services in 2020, compared with 2019. FINDINGS: Between March 1 and May 31, 2020, the number of new patients registered decreased from 112 270 to 51 760 (54% reduction), patients who had follow-up visits decreased from 634 745 to 340 984 (46% reduction), hospital admissions decreased from 88 801 to 56 885 (36% reduction), outpatient chemotherapy decreased from 173634 to 109 107 (37% reduction), the number of major surgeries decreased from 17 120 to 8677 (49% reduction), minor surgeries from 18 004 to 8630 (52% reduction), patients accessing radiotherapy from 51 142 to 39 365 (23% reduction), pathological diagnostic tests from 398 373 to 246 616 (38% reduction), number of radiological diagnostic tests from 93 449 to 53 560 (43% reduction), and palliative care referrals from 19 474 to 13 890 (29% reduction). These reductions were even more marked between April and May, 2020. Cancer screening was stopped completely or was functioning at less than 25% of usual capacity at more than 70% of centres during these months. Reductions in the provision of oncology services were higher for centres in tier 1 cities (larger cities) than tier 2 and 3 cities (smaller cities). INTERPRETATION: The COVID-19 pandemic has had considerable impact on the delivery of oncology services in India. The long-term impact of cessation of cancer screening and delayed hospital visits on cancer stage migration and outcomes are likely to be substantial. FUNDING: None. TRANSLATION: For the Hindi translation of the abstract see Supplementary Materials section.


Asunto(s)
COVID-19/terapia , Prestación Integrada de Atención de Salud/tendencias , Accesibilidad a los Servicios de Salud/tendencias , Oncología Médica/tendencias , Neoplasias/terapia , Atención Ambulatoria/tendencias , COVID-19/diagnóstico , Diagnóstico Tardío , Detección Precoz del Cáncer/tendencias , Hospitalización/tendencias , Hospitales de Alto Volumen/tendencias , Humanos , India/epidemiología , Neoplasias/diagnóstico , Neoplasias/epidemiología , Aceptación de la Atención de Salud , Factores de Tiempo , Tiempo de Tratamiento , Listas de Espera
18.
Pediatr Blood Cancer ; 68(9): e29197, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34212474

RESUMEN

BACKGROUND: The adverse influence of undernutrition in children with cancer may be remediated by early nutritional intervention. This study assessed the efficacy of ready-to-use therapeutic food (RUTF) in improving nutritional status and reducing treatment-related toxicities (TRTs) in such children. METHODS: In a randomized controlled phase-3 open-label trial, severely and moderately undernourished children with cancer were randomized 1:1 to receive standard nutritional therapy (SNT) or SNT+RUTF for 6 weeks. The primary outcome (weight gain >10%) and secondary outcomes (improved/maintained nutritional status, improved body composition) were assessed after 6 weeks. TRTs were assessed over 6 months. RESULTS: Between July 2015 and March 2018, 260 subjects were enrolled, 126 were analyzable in both arms at 6 weeks. More children on RUTF had weight gain (98 [77.8%] vs. 81 [64.2%], p = .025) with a greater increase in fat mass as a percentage of body mass (median 2% [IQR -0.12 to 4.9] vs. 0.5% [IQR -1.45 to 2.27, p = .005]) but a greater loss of lean mass (median -1.86% [IQR -4.4 to 0.50] vs. -0.4% [IQR -2.4 to 1.4, p = .007]) compared to the SNT arm. Fewer subjects on the RUTF arm had episodes of severe infection (10.6% vs. 31%, p < .0001), treatment delays (17.7% vs. 39%, p < .0001), and severe mucositis (11% vs. 23.8%, p = .006) compared to the SNT arm. The odds of developing TRTs on the RUTF arm were lower even after adjusting for improvement in nutritional status. CONCLUSIONS: RUTF is efficacious in improving weight gain and nutritional status in undernourished children with cancer and decreases TRTs. Incorporating RUTF into a healthy, balanced diet should be considered in undernourished children with cancer.


Asunto(s)
Trastornos de la Nutrición del Niño , Desnutrición , Neoplasias , Terapia Nutricional , Niño , Trastornos de la Nutrición del Niño/etiología , Trastornos de la Nutrición del Niño/terapia , Humanos , Desnutrición/etiología , Desnutrición/terapia , Micronutrientes , Neoplasias/complicaciones , Neoplasias/terapia , Aumento de Peso
19.
Pediatr Blood Cancer ; 68(5): e28925, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33533557

RESUMEN

PURPOSE: To assess the safety and efficacy of concurrent carboplatin during craniospinal irradiation (CSI) in high-risk/metastatic medulloblastoma defined as either residual tumor >1.5 cm2 or leptomeningeal metastases. METHODS: This single-arm combined prospective (2005-2011) and retrospective (2011-2019) study was undertaken at a tertiary care cancer center in India. Following surgery, patients with newly diagnosed high-risk/metastatic medulloblastoma received concurrent carboplatin (35 mg/m2 ) for 15 days (day 1 to day 15) during CSI plus posterior fossa/tumor bed boost, followed by six cycles of standard adjuvant chemotherapy. RESULTS: All 97 patients completed their planned course of radiotherapy without interruptions, except for two (2.1%) patients who had brief gaps due to treatment-related toxicity. Grade 3-4 anemia, neutropenia, thrombocytopenia, and febrile neutropenia were seen in four (4.1%), 41 (42.2%) 21 (21.6%), and 18 (18.6%) patients, necessitating packed cell transfusion, granulocyte colony-stimulating factor, and platelet support in five (5.1%), 41 (42.2%), and five (5.1%) patients, respectively, during the concurrent phase. Following myelorecovery, 92 (94.9%) patients completed the planned six cycles of standard adjuvant systemic chemotherapy. There were no treatment-related deaths during the concurrent chemo-radiotherapy phase, while three (3.1%) toxic deaths were ascribed to adjuvant chemotherapy-related complications. At a median follow-up of 82 months, the 5-year Kaplan-Meier estimates of progression-free survival and overall survival were 60.2% and 62.1%, respectively. On univariate analysis, leptomeningeal metastases (M0/M1 vs. M2/M3) and histological subtype (large cell/anaplastic vs. others) emerged as significant prognostic factors for survival. CONCLUSION: Addition of concurrent carboplatin to RT as radiosensitizing chemotherapy is a simple and effective way of treatment intensification in high-risk/metastatic medulloblastoma.


Asunto(s)
Antineoplásicos/administración & dosificación , Carboplatino/administración & dosificación , Neoplasias Cerebelosas/terapia , Quimioradioterapia/métodos , Meduloblastoma/terapia , Adolescente , Quimioterapia Adyuvante/métodos , Niño , Irradiación Craneoespinal/métodos , Femenino , Humanos , Masculino
20.
Jpn J Clin Oncol ; 51(5): 762-768, 2021 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-33521824

RESUMEN

BACKGROUND: We present our institutional approach for re-irradiation in diffuse intrinsic pontine glioma and their outcomes. METHODS: Consecutive patients of recurrent diffuse intrinsic pontine glioma treated with re-irradiation (January 2015-September 2019) were reviewed retrospectively to describe the clinical-response-based approach followed for the dose and volume decision. Outcomes were defined with clinical and steroid response criteria and survival endpoints included progression-free survival and overall survival as cumulative(c) overall survival and re-irradiation overall survival (re-irradiation starting to death). The Kaplan-Meier method and log-rank test were used for survival analysis. RESULTS: Twenty-patient cohort with a median (m) age of 7.5 years, m-progression-free survival of 8.4 months and m-Lansky performance score of 50 received re-irradiation of which 17 (85%) were called clinical responders. The median re-irradiation-overall survival with 39.6-41.4, 43.2 and 45 Gy were 5.8, 7 and 5.3 months, respectively. One-month post-re-irradiation steroid independent status was a significant predictor of better survival outcomes (overall survival, P≤0.004). No ≥ grade 3 toxicities were noticed. Two patients succumbed to intra-tumoral hemorrhage. CONCLUSIONS: Higher doses of re-irradiation based on a clinical-response-based approach show improvement in survival and steroid dependence rates with acceptable toxicity. Steroid independent status at 1-month post-re-irradiation predicts better outcomes. Prospective studies may validate this with quality of life data.


Asunto(s)
Neoplasias del Tronco Encefálico/radioterapia , Glioma Pontino Intrínseco Difuso/radioterapia , Calidad de Vida/psicología , Reirradiación/métodos , Neoplasias del Tronco Encefálico/mortalidad , Niño , Estudios de Cohortes , Glioma Pontino Intrínseco Difuso/mortalidad , Femenino , Humanos , Masculino , Supervivencia sin Progresión , Estudios Prospectivos , Estudios Retrospectivos , Análisis de Supervivencia
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