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1.
Pediatr Blood Cancer ; 70(3): e30186, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36602026

RESUMO

BACKGROUND: Adherence promotion is a critical component of adolescent and young adult (AYA) cancer care, but predictors of nonadherence that could be targeted in intervention efforts remain largely unknown. The purpose of this multi-site longitudinal observational study was to examine the relationship between barriers and medication adherence among AYAs with cancer. PROCEDURE: Sixty-five AYAs (ages 15-24 years; mean age = 18.97 years, SD = 2.51; Mmean time since diagnosis = 1.42 years, SD = 1.95) with newly diagnosed or relapsed cancer completed self-report measures of barriers and adherence at quarterly study visits and used an electronic adherence monitoring device for 12 months. Longitudinal mixed effects models were used to examine our primary hypothesis that greater barriers are related to lower adherence over time. Descriptive statistics were used to explore our secondary aim of describing the frequency and patterns of barriers endorsed by AYAs with cancer. RESULTS: After controlling for covariates (time, medication type, race, ethnicity, diagnosis, time since diagnosis), a greater number of barriers was associated with lower electronically monitored (ß = -5.99, p = .005) and self-reported (ß = -1.92, p < .001) adherence. The specific barriers endorsed by AYAs differed across participants, and the majority of AYAs endorsed an entirely different pattern of barriers than any other AYA in the study. CONCLUSION: Barriers are associated with nonadherence and may be a promising target for intervention. Individual variability across barriers, however, suggests that tailoring may be necessary, and a promising next step is to explore personalized approaches to adherence promotion.


Assuntos
Neoplasias , Humanos , Adolescente , Adulto Jovem , Adulto , Neoplasias/tratamento farmacológico , Autorrelato , Estudos Longitudinais , Doença Crônica , Adesão à Medicação
2.
Pediatr Blood Cancer ; 70(11): e30609, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37553297

RESUMO

BACKGROUND: Cyclin D has been shown to play an essential role in acute lymphoblastic leukemia (ALL) initiation and progression, providing rationale for targeting the CDK4/6-cyclin D complex that regulates cell cycle progression. PROCEDURE: The Children's Oncology Group AINV18P1 phase 1 trial evaluated the CDK4/6 inhibitor, palbociclib, in combination with standard four-drug re-induction chemotherapy in children and young adults with relapsed/refractory B- and T-cell lymphoblastic leukemia (ALL) and lymphoma. Palbociclib (50 mg/m2 /dose) was administered orally once daily for 21 consecutive days, first as a single agent (Days 1-3) and subsequently combined with re-induction chemotherapy. This two-part study was designed to determine the maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D), followed by an expansion pharmacokinetic cohort. RESULTS: Twelve heavily pretreated patients enrolled, all of whom were evaluable for toxicity. One dose-limiting hematologic toxicity (DLT) occurred at the starting dose of 50 mg/m2 /dose orally for 21 days. No additional DLTs were observed in the dose determination or pharmacokinetic expansion cohorts, and overall rates of grade 3/4 nonhematologic toxicities were comparable to those observed with the chemotherapy platform alone. Five complete responses were observed, two among four patients with T-ALL and three among seven patients with B-ALL. Pharmacokinetic studies showed similar profiles with both liquid and capsule formulations of palbociclib. CONCLUSIONS: Palbociclib in combination with re-induction chemotherapy was well tolerated with a RP2D of 50 mg/m2 /day for 21 days. Complete responses were observed among heavily pretreated patients.


Assuntos
Linfoma de Células B , Linfoma , Leucemia-Linfoma Linfoblástico de Células Precursoras , Criança , Humanos , Adulto Jovem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Linfoma/tratamento farmacológico , Linfoma de Células B/tratamento farmacológico , Dose Máxima Tolerável , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Leucemia-Linfoma Linfoblástico de Células Precursoras/etiologia
3.
Pediatr Blood Cancer ; 68(8): e29126, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34019326

RESUMO

No guidelines exist for which intensive chemotherapy regimen is best in pediatric or young adult patients with high-risk posttransplant lymphoproliferative disorder (PTLD). We retrospectively reviewed patients with PTLD who received interval-compressed short-course etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin (SC-EPOCH) regimens at our institution. Eight patients were included with median age of 12 years. All patients achieved a complete response with a manageable toxicity profile. Two patients developed second, clonally unrelated, EBV-positive PTLD and one patient had recurrence at 6 months off therapy. No graft rejection occurred during therapy. All eight patients are alive with median follow-up of 29 months.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Transtornos Linfoproliferativos , Transplante de Órgãos/efeitos adversos , Criança , Ciclofosfamida/uso terapêutico , Doxorrubicina/uso terapêutico , Etoposídeo/uso terapêutico , Humanos , Transtornos Linfoproliferativos/tratamento farmacológico , Transtornos Linfoproliferativos/etiologia , Complicações Pós-Operatórias , Prednisona/uso terapêutico , Prognóstico , Estudos Retrospectivos , Vincristina/uso terapêutico , Adulto Jovem
5.
Pediatr Blood Cancer ; 65(5): e26944, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29292843

RESUMO

BACKGROUND: Ontuxizumab is a humanized IgG monoclonal antibody that targets the cell-surface glycoprotein endosialin (tumor endothelial marker-1[TEM-1]/CD248) found on activated mesenchymal cells and certain tumors. Ontuxizumab binding to endosialin may interfere with platelet-derived growth factor signaling, prevent tumor stroma organization, and prevent new vessel formation. METHODS: Ontuxizumab was administered intravenously on days 1, 8, 15, and 22 of a 28-day cycle at three dose levels (4, 8, and 12 mg/kg). Further dose escalation to 16 mg/kg was planned if the maximum tolerated dose (MTD) was not reached and the ontuxizumab systemic clearance was ≥30% higher in children compared to adults. Following determination of the MTD/recommended phase 2 dose, an additional cohort of six patients (<12 years) was enrolled for further pharmacokinetics (PK) evaluation. RESULTS: Twenty-seven eligible patients (17 male, median age 15 years, range 3-21 years) were enrolled. Twenty-two patients (neuroblastoma [5], Ewing sarcoma [4], rhabdomyosarcoma [4], and other tumors [9]) were fully evaluable for toxicity. Five patients did not complete cycle 1 due to tumor progression. Two of 10 patients experienced dose-limiting toxicity of bacteremia (n = 1) and hyponatremia (n = 1) at 12 mg/kg. Grade ≤2 fever or infusion-related reactions occurred in 10 patients. Clearance was dose dependent and within 30% of adult value at 12 mg/kg. CONCLUSION: Ontuxizumab administered weekly at 12 mg/kg appears to be well tolerated in children with relapsed or refractory solid tumors. The PK of ontuxizumab does not appear to be significantly different in children compared to adults.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Recidiva Local de Neoplasia/tratamento farmacológico , Neoplasias/tratamento farmacológico , Terapia de Salvação , Adolescente , Adulto , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Seguimentos , Humanos , Lactente , Masculino , Dose Máxima Tolerável , Recidiva Local de Neoplasia/patologia , Neoplasias/patologia , Prognóstico , Taxa de Sobrevida , Adulto Jovem
6.
Invest New Drugs ; 35(1): 108-114, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27718038

RESUMO

Importance Use of expansion cohorts (EC) in phase I trials is increasing. However, the utility of phase I EC in aiding drug development is unclear. We sought to determine factors associated with the inclusion of EC in phase I studies and the impact of EC on subsequent clinical development. Methods We performed a systematic review of all phase I trials published in the Journal of Clinical Oncology between June 2004 and May 2014. Presence of an EC, number of participants, funding source, class of agent, tumor type, and maximum tolerated dose (MTD)/recommended phase 2 dose (RP2D) were identified. Subsequent conduct of phase II studies and FDA approval of the study agent was also assessed. Results We identified 252 phase I studies. An EC was included in 105 studies. Average accrual on EC studies was 47 compared to 31 in studies without EC (p < 0.0001). There was no impact of time on the inclusion of EC. Only 4 % of phase I studies with an EC provided sample size justification. Source of funding had the only significant association with inclusion of EC. Addition of a phase I EC did not impact the phase I MTD/RP2D, subsequent phase II trial, or FDA approval. Conclusion The importance of including an EC in phase I trials is subject to ongoing debate. Our results demonstrated little benefit to including EC in phase I studies. These findings support that innovative design strategies are needed to optimize the utility of EC in phase I studies.


Assuntos
Antineoplásicos , Ensaios Clínicos Fase I como Assunto/métodos , Projetos de Pesquisa , Humanos , Oncologia/métodos
7.
Br J Clin Pharmacol ; 82(3): 728-38, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27121262

RESUMO

AIM: The aim of the present study was to characterize the pharmacokinetics of the oral proteasome inhibitor, ixazomib, in patients with solid tumours and moderate or severe hepatic impairment, to provide posology recommendations. METHODS: Eligible adults with advanced malignancies for which no further effective therapy was available received a single dose of ixazomib on day 1 of the pharmacokinetic cycle; patients with normal hepatic function, moderate hepatic impairment or severe hepatic impairment received 4 mg, 2.3 mg or 1.5 mg, respectively. Blood samples for single-dose pharmacokinetic characterization were collected over 336 h postdose. After sampling, patients could continue to receive ixazomib on days 1, 8 and 15 in 28-day cycles. RESULTS: Of 48 enrolled patients (13, 15 and 20 in the normal, moderate and severe groups, respectively), 43 were pharmacokinetics-evaluable. Ixazomib was rapidly absorbed (median time to reach peak concentration was 0.95-1.5 h) and highly bound to plasma proteins, with a similar mean fraction bound (~99%) across the three groups. In patients with moderate/severe hepatic impairment (combined group), the geometric least squares mean ratios (90% confidence interval) for unbound and total dose-normalized area under the plasma concentration vs. time curve from time zero to the time of the last quantifiable concentration in reference to the normal hepatic function group were 1.27 (0.75, 2.16) and 1.20 (0.79, 1.82), respectively. Seven (15%) of the 48 patients experienced a grade 3 drug-related adverse event; there were no drug-related grade 4 adverse events. CONCLUSIONS: In patients with moderate/severe hepatic impairment, unbound and total systemic exposures of ixazomib were 27% and 20% higher, respectively, vs. normal hepatic function. A reduced ixazomib starting dose of 3 mg is recommended for patients with moderate or severe hepatic impairment.


Assuntos
Compostos de Boro/farmacocinética , Glicina/análogos & derivados , Hepatopatias/sangue , Neoplasias/sangue , Administração Oral , Adulto , Idoso , Idoso de 80 Anos ou mais , Compostos de Boro/administração & dosagem , Compostos de Boro/sangue , Feminino , Glicina/administração & dosagem , Glicina/sangue , Glicina/farmacocinética , Humanos , Hepatopatias/complicações , Hepatopatias/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Neoplasias/tratamento farmacológico , Inibidores de Proteassoma/administração & dosagem , Inibidores de Proteassoma/sangue , Inibidores de Proteassoma/farmacocinética , Adulto Jovem
8.
Pediatr Dermatol ; 32(3): e95-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25690855

RESUMO

A blue patch on the vertex scalp of an infant has a broad differential diagnosis, including vascular malformations, melanocytic lesions, trauma, and exogenous or endogenous pigmentation. We present two cases of infants who developed blue patches on the scalp. Extensive examination including MRI and biopsy was recommended for one of the patients to further characterize the lesion and its possible medical implications. In both, the blue discoloration had been due to repetitive contact with the sticker on a tub of baby wipes that had rubbed off onto the scalp. We present these infants to highlight this exogenous and benign cause of blue pigmentation and help practitioners avoid unnecessary examination.


Assuntos
Corantes , Couro Cabeludo , Diagnóstico Diferencial , Feminino , Humanos , Lactente , Masculino
9.
Pediatr Blood Cancer ; 61(1): 145-50, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24038812

RESUMO

BACKGROUND: Poly(ADP-ribose) polymerase (PARP) signals DNA damage and facilitates DNA repair. PARP inhibitors are being evaluated in cancers with defective DNA repair mechanisms or in combination with cytotoxic therapy or radiation. We evaluated the PARP inhibitor, olaparib, in combination with chemotherapy using in vitro and in vivo pediatric solid tumor models. PROCEDURE: The IC50 of olaparib alone and in combination with cytotoxic agents was determined in 10 pediatric solid tumor cell lines. Synergy was assessed using the combination index of Chou-Talalay. Olaparib alone and in combination with topotecan/cyclophosphamide was evaluated in xenograft models of Ewing sarcoma (RD-ES) and neuroblastoma (NGP). PAR activity was evaluated in cell lines and tumor lysates. RESULTS: Olaparib induced growth inhibition, median (range) IC50 = 3.6 (1-33.8) µM, and inhibited PAR activity in pediatric solid tumor cell lines. The addition of olaparib to DNA damaging agents resulted in additive to synergistic interactions. In RD-ES and NGP xenografts, olaparib inhibited PAR activity by 88-100% as a single agent and 100% when administered with cyclophosphamide/topotecan. Although the addition of olaparib did not antagonize the activity of cyclophosphamide/topotecan, clear evidence of synergy could not be demonstrated. CONCLUSIONS: In pediatric solid tumor cell lines, clinically achievable concentrations of single agent olaparib caused growth inhibition. Although the in vitro data demonstrated synergistic efficacy of olaparib when added to the camptothecins and alkylating agents, synergy was not discernible in vivo. Clinical trials of PARP inhibitors in combination DNA damaging agents are necessary to establish the role of PARP inhibitors in childhood cancer.


Assuntos
Antineoplásicos/farmacologia , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Inibidores Enzimáticos/farmacologia , Neoplasias/tratamento farmacológico , Ftalazinas/farmacologia , Piperazinas/farmacologia , Animais , Avaliação Pré-Clínica de Medicamentos , Sinergismo Farmacológico , Feminino , Humanos , Concentração Inibidora 50 , Camundongos , Camundongos SCID , Inibidores de Poli(ADP-Ribose) Polimerases , Ensaios Antitumorais Modelo de Xenoenxerto
10.
Pediatr Blood Cancer ; 61(5): 833-9, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24249672

RESUMO

BACKGROUND: mTOR inhibitors have activity in pediatric tumor models. A phase I trial of the mTOR inhibitor temsirolimus (TEM) with irinotecan (IRN) and temozolomide (TMZ) was conducted in children with recurrent/refractory solid tumors, including central nervous system (CNS) tumors. METHODS: Escalating doses of intravenous (IV) TEM were administered on days 1 and 8 of 21-day cycles. IRN (50 mg/m(2)/dose escalated to a maximum of 90 mg/m(2)/dose) and TMZ (100 mg/m(2)/dose escalated to a maximum of 150 mg/m(2)/dose) were administered orally (PO) on days 1-5. When maximum tolerated doses (MTD) were identified, TEM frequency was increased to weekly. RESULTS: Seventy-one eligible pts (median age 10.9 years, range 1.0-21.5) with neuroblastoma (16), osteosarcoma (7), Ewing sarcoma (7), rhabdomyosarcoma (4), CNS (22) or other (15) tumors were enrolled. Dose-limiting hyperlipidemia occurred in two patients receiving oral corticosteroids. The protocol was subsequently amended to preclude chronic steroid use. The MTD was identified as TEM 35 mg/m(2) IV weekly, with IRN 90 mg/m(2) and TMZ 125 mg/m(2) PO on days 1-5. At higher dose levels, elevated serum alanine aminotransferase and triglycerides, anorexia, and thrombocytopenia were dose limiting. Additional ≥ grade 3 regimen-related toxicities included leukopenia, neutropenia, lymphopenia, anemia, and nausea/vomiting. Six patients had objective responses confirmed by central review; three of these had sustained responses through ≥ 14 cycles of therapy. CONCLUSION: The combination of TEM (35 mg/m(2)/dose IV weekly), IRN (90 mg/m(2)/dose days 1-5) and TMZ (125 mg/m(2)/dose days 1-5) administered PO every 21 days is well tolerated in children. Phase 2 trials of this combination are ongoing.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias/tratamento farmacológico , Adolescente , Adulto , Camptotecina/administração & dosagem , Camptotecina/análogos & derivados , Criança , Pré-Escolar , Dacarbazina/administração & dosagem , Dacarbazina/análogos & derivados , Feminino , Seguimentos , Humanos , Lactente , Irinotecano , Masculino , Dose Máxima Tolerável , Recidiva Local de Neoplasia/tratamento farmacológico , Prognóstico , Indução de Remissão , Sirolimo/administração & dosagem , Sirolimo/análogos & derivados , Temozolomida , Adulto Jovem
11.
Pediatr Blood Cancer ; 61(10): 1792-7, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24962521

RESUMO

BACKGROUND: EZN-2208 is a water-soluble PEGylated conjugate of the topoisomerase inhibitor SN38, the active metabolite of irinotecan. Compared to irinotecan, EZN-2208 has a prolonged half-life permitting extended exposure to SN38. EZN-2208 has demonstrated clinical tolerability and antitumor activity in adults with advanced solid tumors. This Phase 1 study evaluated the safety, pharmacokinetics, and preliminary antitumor activity of EZN-2208 in children with relapsed or refractory solid tumors. PROCEDURE: EZN-2208 was administered as a 1-hour intravenous infusion once every 21 days at five dose levels (12-30 mg/m(2) ). Filgrastim or pegfilgrastim was administered 24-48 hours after treatment with EZN-2208. The rolling-six design was used for dose determination. RESULTS: Thirty eligible patients (15 females; median [range] age 11.5 years [2-21 years]) were treated with EZN-2208. Dose-limiting diarrhea occurred in one patient receiving 16 mg/m(2) and dose-limiting dehydration was seen in one patient receiving 24 mg/m(2) . At dose levels above 16 mg/m(2) , Grade ≥3 myelosuppression was demonstrated in the majority of patients. Additional adverse events included nausea, vomiting, and fatigue. The maximum tolerated dose was identified as 24 mg/m(2) due to dose-limiting thrombocytopenia in two patients receiving 30 mg/m(2) . Two of nine patients with neuroblastoma who were evaluable for response had partial responses. Five patients (four with neuroblastoma) remained on study for ≥8 cycles. CONCLUSIONS: EZN-2208 was generally well-tolerated and was associated with clinical benefit in patients with neuroblastoma.


Assuntos
Antineoplásicos/administração & dosagem , Camptotecina/análogos & derivados , Recidiva Local de Neoplasia/tratamento farmacológico , Neoplasias/tratamento farmacológico , Polietilenoglicóis/administração & dosagem , Adolescente , Antineoplásicos/efeitos adversos , Antineoplásicos/farmacocinética , Camptotecina/administração & dosagem , Camptotecina/efeitos adversos , Camptotecina/farmacocinética , Criança , Pré-Escolar , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Polietilenoglicóis/efeitos adversos , Polietilenoglicóis/farmacocinética , Resultado do Tratamento , Adulto Jovem
12.
J Pediatr Hematol Oncol ; 36(1): e23-7, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23669732

RESUMO

Retinoids have been studied for the treatment of children with neuroblastoma for >25 years. Posttransplant administration of isotretinoin is standard of care for children with high-risk neuroblastoma, whereas fenretinide remains investigational. Previous preclinical studies have evaluated the interaction of retinoids and cytotoxic agents with conflicting results. We evaluated the schedule-dependent interaction of the cytotoxic agents, vincristine and cisplatin, with the retinoids, isotretinoin and fenretinide, in xenograft models of neuroblastoma. Concomitant administration of isotretinoin or fenretinide with the cytotoxic agents did not result in any clear potentiation of cytotoxicity.


Assuntos
Cisplatino/farmacologia , Neoplasias do Sistema Nervoso/tratamento farmacológico , Neuroblastoma/tratamento farmacológico , Retinoides/farmacologia , Vincristina/farmacologia , Animais , Antineoplásicos/farmacologia , Antineoplásicos Fitogênicos/farmacologia , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Interações Medicamentosas , Feminino , Camundongos , Camundongos SCID , Ensaios Antitumorais Modelo de Xenoenxerto
13.
Artigo em Inglês | MEDLINE | ID: mdl-38808497

RESUMO

This cross-sectional study described prevalent body image (BI) concerns among adolescents and young adults (AYAs) with neoplasms who received treatment at a quaternary care children's hospital. Thirty-two AYAs, aged 15-39 years, completed questionnaires assessing BI within six months of diagnosis. The most frequently endorsed questionnaire items included the following: desire for increased physical fitness (62.5%), self-consciousness about hair (45.2%), weight dissatisfaction (40.6%), lack of strength (37.5%), wearing loose clothing to hide one's body (37.5%), decreased agility (34.4%), shape dissatisfaction (32.2%), and self-perception of too much body fat (31.3%). Awareness of AYA BI concerns during treatment may generate early intervention targeting this complex issue.

14.
Contemp Clin Trials ; 139: 107483, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38431133

RESUMO

BACKGROUND: Medication non-adherence is common among adolescents and young adults (AYAs) with cancer and associated with poor health outcomes. AYAs with cancer endorse multiple barriers to adherence that differ across individuals, suggesting that tailoring intervention content to an AYA's specific barriers may have the potential to improve adherence. The purpose of this manuscript is to report on ORBIT-guided Phase I design efforts to create the first tailored adherence-promotion intervention for AYAs with cancer and the study protocol for the ongoing Phase II pilot feasibility trial. METHODS: Phase I design included qualitative interviews (n = 15 AYAs) to understand patient preferences for adherence-promotion care, development and refinement of a best-worst scaling exercise barriers tool (n = 5 AYAs), and development of intervention modules and a tailoring algorithm. In the ongoing Phase II pilot feasibility trial, AYAs (ages 15-24 years) with cancer currently taking oral chemotherapy or prophylactic medication will be recruited from three children's hospitals. Feasibility, acceptability, and usability will be assessed and these outcomes along with data on medication adherence will be used to inform the next phases of intervention development and testing. CONCLUSIONS: If promising, this program of research ultimately has the potential to equip clinicians with additional strategies for supporting adherence among AYAs with cancer. NCT05706610.


Assuntos
Neoplasias , Adolescente , Humanos , Adulto Jovem , Estudos de Viabilidade , Adesão à Medicação , Neoplasias/tratamento farmacológico , Projetos Piloto , Projetos de Pesquisa , Ensaios Clínicos Fase II como Assunto
15.
Transplant Cell Ther ; 29(5): 311.e1-311.e7, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36809824

RESUMO

Bridging therapy (BT) given during the period between T-cell collection and initiation of lymphodepleting chemotherapy is indicated for most children with B-cell acute lymphoblastic leukemia (B-ALL) undergoing treatment with tisagenlecleucel (tisa-cel), a CD19-directed chimeric antigen receptor T-cell (CAR-T) therapy. Both conventional chemotherapy agents and B-cell directed antibody-based therapies such as antibody-drug conjugates and bispecific T-cell engagers have been used as systemic forms of BT. The purpose of this retrospective study was to evaluate if there are detectable differences in clinical outcomes based on the type of BT given (conventional chemotherapy or inotuzumab). A retrospective analysis was performed on all patients treated with tisa-cel at Cincinnati Children's Hospital Medical Center for B-ALL with bone marrow disease (with or without extramedullary disease). Patients who did not receive systemic BT were excluded. Only 1 patient received blinatumomab as BT and was therefore not included in this analysis to focus the analysis on the use of inotuzumab. Pre-infusion characteristics and post-infusion outcomes were collected. Fisher's exact test was used for categorical variables, and t-test or Mann-Whitney test was used for continuous parametric and non-parametric variables respectively. Mantel-Cox was used for survival analyses. Thirty-two patients received BT before CD19 CAR-T for medullary leukemia; 24 received conventional chemotherapy, and 8 received inotuzumab ozogamicin (InO). Cohorts were evenly matched regarding CAR-T indication, recipient age, and median CAR-T cell dose. There were no significant differences between the groups for attaining a minimal residual disease (MRD)-negative complete response after CAR-T, the percentage of patients who maintained prolonged B-cell aplasia, or the median duration of B-cell aplasia. Thirty-seven percent of patients in the conventional chemotherapy group and 43% in the antibody-based therapy group relapsed, with a median time to relapse in both groups of 5 months. No differences in event-free survival, the cumulative incidence of relapse, or overall survival were seen between the two groups. Initial response to tisa-cel, relapse rate, and survival were similar between patients who received BT with conventional chemotherapy or InO therapy. Because low disease burden at the time of infusion is a positive prognostic factor, choice of bridging regimen should focus on therapy that is anticipated to effectively lower disease burden and minimize treatment-related toxicity. Given the limitations associated with the single center retrospective analysis, a larger, multicenter study is needed to further explore these findings.


Assuntos
Leucemia-Linfoma Linfoblástico de Células Precursoras B , Leucemia-Linfoma Linfoblástico de Células Precursoras , Receptores de Antígenos Quiméricos , Humanos , Criança , Inotuzumab Ozogamicina/uso terapêutico , Receptores de Antígenos Quiméricos/uso terapêutico , Estudos Retrospectivos , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Leucemia-Linfoma Linfoblástico de Células Precursoras B/tratamento farmacológico , Recidiva
16.
Blood Adv ; 7(4): 602-610, 2023 02 28.
Artigo em Inglês | MEDLINE | ID: mdl-36541957

RESUMO

Part 1 results of the open-label, randomized, global phase 3 SPARKLE trial supported continued assessment of ibrutinib with either modified rituximab, ifosfamide, carboplatin, and etoposide (RICE) or rituximab, vincristine, ifosfamide, carboplatin, idarubicin, and dexamethasone (RVICI) in pediatric patients with relapsed/refractory (R/R) mature B-cell non-Hodgkin lymphoma (B-NHL). We report final results of Part 2 evaluating the efficacy of ibrutinib plus RICE or RVICI vs RICE/RVICI alone. Patients aged 1 to 30 years (initial diagnosis <18 years) were randomized 2:1 to receive ibrutinib with or without RICE/RVICI. Primary endpoint was event-free survival (EFS) based on independent committee-confirmed events. Fifty-one patients were enrolled. Median age was 15 years; Burkitt lymphoma, Burkitt leukemia, and Burkitt-like lymphoma (total: 45%) and diffuse large B-cell lymphoma/primary mediastinal B-cell lymphoma (51%) were the most common subtypes. At the preplanned interim analysis, median EFS was 6.1 vs 7.0 months with ibrutinib plus RICE/RVICI vs RICE/RVICI, respectively (hazard ratio, 0.9; 90% confidence interval, 0.5-1.6; P = .387); further enrollment was ceased. With ibrutinib plus RICE/RVICI vs RICE/RVICI, median overall survival was 14.1 vs 11.1 months, overall response rate was 69% vs 81%, and 46% vs 44% proceeded to stem cell transplantation. In both treatment arms, 100% of patients experienced grade ≥3 treatment-emergent adverse events. No EFS benefit was seen with ibrutinib. Salvage was generally poor in patients who received prior rituximab, regardless of treatment arm. No new safety signals were observed. Ibrutinib exposure in pediatric patients fell within the target range of exposure in adults. Trial is registered on www.clinicaltrials.gov (NCT02703272).


Assuntos
Ifosfamida , Linfoma Difuso de Grandes Células B , Humanos , Adulto Jovem , Criança , Adolescente , Rituximab , Etoposídeo , Carboplatina
17.
Blood Adv ; 7(13): 3225-3231, 2023 07 11.
Artigo em Inglês | MEDLINE | ID: mdl-36897253

RESUMO

Outcomes for children and adolescents with relapsed and refractory Hodgkin lymphoma (HL) are poor, with ∼50% of patients experiencing a subsequent relapse. The anti-CD30 antibody-drug conjugate brentuximab vedotin improved progression-free survival (PFS) when used as consolidation after autologous stem cell transplantation (ASCT) in adults with high-risk relapsed/refractory HL. Data on brentuximab vedotin as consolidative therapy after ASCT in pediatric patients with HL are extremely limited, with data of only 11 patients reported in the literature. We performed a retrospective analysis of 67 pediatric patients who received brentuximab vedotin as consolidation therapy after ASCT for the treatment of relapsed/refractory HL to describe the experience of this regimen in the pediatric population. This is the largest cohort reported to date. We found that brentuximab vedotin was well tolerated with a safety profile similar to that of adult patients. With a median follow-up of 37 months, the 3-year PFS was 85%. These data suggest a potential role for the use of brentuximab vedotin as consolidation therapy after ASCT for children with relapsed/refractory HL.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Doença de Hodgkin , Adulto , Adolescente , Humanos , Criança , Brentuximab Vedotin/uso terapêutico , Doença de Hodgkin/tratamento farmacológico , Doença de Hodgkin/patologia , Transplante Autólogo , Estudos Retrospectivos
18.
J Adolesc Young Adult Oncol ; 11(6): 605-610, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35049383

RESUMO

This study described inpatient physical therapy (PT) adherence and barriers to inpatient PT among adolescents and young adults (AYAs) with hematologic malignancies receiving care at a Midwestern children's hospital. Forty-seven AYAs receiving care over a 2-year period were included. PT contact was established in 93% of hospitalizations. AYAs declined an average of 34% of PT visits, resulting in PT visits on 27% of hospitalized days, 1 day less than the goal of 3 days a week. The most frequent reasons for decline included: AYA sleeping (22%), AYA undergoing medical procedure (18%), and AYA not feeling well (12%).


Assuntos
Neoplasias Hematológicas , Criança , Humanos , Adolescente , Modalidades de Fisioterapia , Neoplasias Hematológicas/terapia
19.
Pediatr Blood Cancer ; 57(7): 1233-5, 2011 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-21850675

RESUMO

Renewed interest in antifols for the treatment of childhood cancers has resulted from identification of novel antifols with broad spectrums of anti-cancer activity. We evaluated the in vitro cytotoxicity of methotrexate and pemetrexed in a panel of 12 pediatric solid tumor cell lines using the sulforhodamine-B assay. The Ewing sarcoma (ES) cell lines demonstrated the greatest sensitivity to both methotrexate and pemetrexed. Expression of folate pathway genes (DHFR, TS, GARFT, GGH) did not correlate with in vitro drug sensitivity. Further evaluation of pemetrexed for the treatment of ES is warranted.


Assuntos
Antineoplásicos/farmacologia , Proliferação de Células/efeitos dos fármacos , Expressão Gênica/efeitos dos fármacos , Glutamatos/farmacologia , Guanina/análogos & derivados , Neoplasias , Linhagem Celular Tumoral , Guanina/farmacologia , Humanos , Concentração Inibidora 50 , Metotrexato/farmacologia , Pediatria/métodos , Pemetrexede , Reação em Cadeia da Polimerase Via Transcriptase Reversa
20.
J Adolesc Young Adult Oncol ; 10(3): 351-354, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33085558

RESUMO

There is a critical need to engage adolescents and young adults (AYAs) with cancer in conversations regarding "safer" sexual activity during treatment. Many providers, however, report lacking the knowledge and/or tools to engage in these discussions. This article describes the experience of one pediatric institution in assessing and addressing provider barriers to safer sexual activity discussions among AYAs with cancer. Feedback from patients and providers resulted in an educational handout detailing recommendations regarding safer sex practices for AYAs with cancer. Handout adoption, acceptability, appropriateness, and feasibility are described alongside barriers to assist other institutions seeking to develop similar interventions.


Assuntos
Neoplasias , Sexo Seguro , Adolescente , Criança , Comunicação , Humanos , Neoplasias/terapia , Adulto Jovem
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