RESUMO
Melphalan flufenamide (melflufen), a first-in-class alkylating peptide-drug conjugate, plus dexamethasone demonstrated superior progression-free survival (PFS), but not overall survival (OS), versus pomalidomide plus dexamethasone in relapsed/refractory multiple myeloma in the OCEAN study. Time to progression (TTP) <36 months after a prior autologous stem cell transplantation (ASCT) was a negative prognostic factor for OS with melflufen. This post hoc exploratory analysis evaluated patients refractory to prior alkylators (e.g., cyclophosphamide and melphalan) in OCEAN. In 153 patients refractory to prior alkylators (melflufen, n = 78; pomalidomide, n = 75), the melflufen and pomalidomide arms had similar median PFS (5.6 months [95% CI, 4.2-8.3] vs. 4.7 months [95% CI, 3.1-7.3]; hazard ratio [HR], 0.92 [95% CI, 0.63-1.33]) and OS (23.4 months [95% CI, 14.4-31.7] vs. 20.0 months [95% CI, 12.0-28.7]; HR, 0.92 [95% CI, 0.62-1.38]). Among alkylator-refractory patients with a TTP ≥ 36 months after a prior ASCT or no prior ASCT (melflufen, n = 54; pomalidomide, n = 53), the observed median PFS and OS were longer in the melflufen arm than the pomalidomide arm. The safety profile of melflufen was consistent with previous reports. These results suggest that melflufen is safe and effective in patients with alkylator-refractory disease, suggesting differentiated activity from other alkylators.
Assuntos
Transplante de Células-Tronco Hematopoéticas , Melfalan/análogos & derivados , Mieloma Múltiplo , Fenilalanina/análogos & derivados , Talidomida/análogos & derivados , Humanos , Mieloma Múltiplo/diagnóstico , Mieloma Múltiplo/tratamento farmacológico , Melfalan/uso terapêutico , Alquilantes/uso terapêutico , Dexametasona/efeitos adversos , Transplante Autólogo , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversosRESUMO
BACKGROUND: As the number and longevity of childhood cancer survivors increases, assessing treatment-associated late effects remains crucial. We longitudinally examined the incidence of and associated risk factors for Leydig cell dysfunction (LCD) and Leydig cell failure (LCF) in men treated for pediatric cancers at our institution. PROCEDURE: We performed a retrospective longitudinal cohort study of adult male survivors treated for various childhood cancers who are at risk for LCD. The outcomes of interest were serum testosterone and luteinizing hormone (LH) levels during childhood and adulthood. Risk factors assessed included treatment with stem cell transplant, total body irradiation (TBI), and exposure to alkylating agents. RESULTS: Out of 118 eligible subjects, 7.6% had LCF and 14.4% had LCD. Median age at last testosterone level was 20 years. Subjects with sufficient testosterone levels in adulthood (N = 105) remained sufficient for a mean of 11.1 years following completion of cancer treatment. We found significant associations between LCF and treatment with TBI (p < .003) and between LCF in adulthood and testosterone insufficiency in childhood (p < .001). No statistically significant association was found between LCF and cyclophosphamide equivalent dose greater than 20 g/m2 (p = .2). LCF/LCD occurred in a small number of nonirradiated patients treated with the highest doses of alkylators. CONCLUSIONS: Incidence of LCF and LCD are low in male survivors of childhood cancer. Longitudinally, there is an association between childhood testosterone insufficiency and LCF in adulthood. Alkylating agents and stem cell transplant without TBI were not associated with LCF in our study.
Assuntos
Sobreviventes de Câncer , Neoplasias , Adulto , Humanos , Masculino , Criança , Adulto Jovem , Células Intersticiais do Testículo/fisiologia , Neoplasias/tratamento farmacológico , Estudos Retrospectivos , Estudos Longitudinais , Testosterona/farmacologia , Testosterona/uso terapêutico , Sobreviventes , Alquilantes/farmacologia , Alquilantes/uso terapêuticoRESUMO
Often considered a rare disease, cardiac amyloidosis is increasingly recognized by practicing clinicians. The increased rate of diagnosis is in part due the aging of the population and increasing incidence and prevalence of cardiac amyloidosis with advancing age, as well as the advent of noninvasive methods using nuclear scintigraphy to diagnose transthyretin cardiac amyloidosis due to either variant or wild type transthyretin without a biopsy. Perhaps the most important driver of the increased awareness is the elucidation of the biologic mechanisms underlying the pathogenesis of cardiac amyloidosis which have led to the development of several effective therapies with differing mechanisms of actions. In this review, the mechanisms underlying the pathogenesis of cardiac amyloidosis due to light chain (AL) or transthyretin (ATTR) amyloidosis are delineated as well as the rapidly evolving therapeutic landscape that has emerged from a better pathophysiologic understanding of disease development.
Assuntos
Amiloidose/etiologia , Amiloidose/terapia , Cardiomiopatias/etiologia , Cardiomiopatias/terapia , Envelhecimento , Alquilantes/uso terapêutico , Amiloide/química , Amiloide/metabolismo , Neuropatias Amiloides Familiares/diagnóstico , Amiloidose/diagnóstico , Amiloidose/fisiopatologia , Anticorpos Monoclonais/uso terapêutico , Benzoatos/uso terapêutico , Benzoxazóis/uso terapêutico , Compostos Bicíclicos Heterocíclicos com Pontes/uso terapêutico , Cardiomiopatias/diagnóstico , Cardiomiopatias/fisiopatologia , Inibidores de Catecol O-Metiltransferase/uso terapêutico , Transplante de Coração , Humanos , Agentes de Imunomodulação/uso terapêutico , Oligonucleotídeos/uso terapêutico , Inibidores de Proteassoma/uso terapêutico , Dobramento de Proteína , Pirazóis/uso terapêutico , RNA Interferente Pequeno/uso terapêutico , Transplante de Células-Tronco , Sulfonamidas/uso terapêutico , Tolcapona/uso terapêuticoRESUMO
OPINION STATEMENT: Primary malignant central nervous (CNS) tumors are a devastating group of diseases with urgent need for improved treatment options. Surgery, radiation, and cytotoxic chemotherapy remain the primary standard treatment modalities, with molecularly targeted therapies having proven efficacy in only small subsets of cases. Poly(ADP-ribose) polymerase (PARP) inhibitors, which have had immense success in the treatment of extracranial cancers with homologous recombination deficiency (HRD), are emerging as a potential targeted treatment for various CNS tumors. Although few primary CNS tumors display canonical BRCA gene defects, preclinical evidence suggests that PARP inhibitors may benefit certain CNS tumors with functional HRD or elevated replication stress. In addition, other preclinical studies indicate that PARP inhibitors may synergize with standard therapies used for CNS tumors including radiation and alkylating agents and may prevent or overcome drug resistance. Thus far, initial clinical trials with early-generation PARP inhibitors, typically as monotherapy or in the absence of selective biomarkers, have shown limited efficacy. However, the scientific rationale remains promising, and many clinical trials are ongoing, including investigations of more CNS penetrant or more potent inhibitors and of combination therapy with immune checkpoint inhibitors. Early phase trials are also critically focusing on determining active drug CNS penetration and identifying biomarkers of therapy response. In this review, we will discuss the preclinical evidence supporting use of PARP inhibitors in primary CNS tumors and clinical trial results to date, highlighting ongoing trials and future directions in the field that may yield important findings and potentially impact the treatment of these devastating malignancies in the coming years.
Assuntos
Neoplasias do Sistema Nervoso Central , Neoplasias Ovarianas , Feminino , Humanos , Inibidores de Poli(ADP-Ribose) Polimerases/farmacologia , Inibidores de Poli(ADP-Ribose) Polimerases/uso terapêutico , Inibidores de Checkpoint Imunológico , Neoplasias Ovarianas/tratamento farmacológico , Poli(ADP-Ribose) Polimerases , Neoplasias do Sistema Nervoso Central/tratamento farmacológico , Neoplasias do Sistema Nervoso Central/etiologia , Biomarcadores , Alquilantes/uso terapêuticoRESUMO
Aim: To describe treatment patterns and outcomes in nontransplant newly diagnosed multiple myeloma (NDMM) patients in Spain. Methods: This retrospective study included two cohorts of NDMM patients diagnosed between 1 January 2012 to 31 December 2013 and 1 April 2016 to 31 March 2017. Results: Among 113 patients, proteasome inhibitor (PI) + alkylator combinations (49%) and PI-based regimens without an alkylator (30%) were the most common first-line (1L) therapies. Use of PI + immunomodulatory drug-based regimens increased between the cohorts; PI-based regimens without an alkylator/immunomodulatory drug decreased. Use of 1L oral regimens was low but increased over time; use of maintenance therapy was low across both periods. Median 1L duration of treatment was 6.9 months. Conclusion: Short 1L duration of treatment and low use of 1L oral regimens and maintenance therapy highlight unmet needs in NDMM.
Lay abstract This study describes treatment patterns and outcomes in newly diagnosed multiple myeloma (NDMM) patients in Spain who were not candidates for transplant. The study looked at two patient groups: patients diagnosed between 1 January 2012 and 31 December 2013 and those diagnosed between 1 April 2016 and 31 March 2017. Among the 113 patients considered, the most common first-line therapies were proteasome inhibitor (PI) + alkylator combinations (49%) and PI-based regimens without an alkylator (30%). We saw increased use of PI with immunomodulators (which arm the immune system to battle disease) and decreased use of PI-based regimens without an alkylator or immunomodulator. First-line use of oral regimens was low but increased over time. The median length of first-line treatment for both groups combined was 6.9 months. Finding low use of first-line oral regimens and maintenance therapy and a short duration of first-line treatment, our study highlights the unmet needs that exist in NDMM patients who are not transplant candidates in Spain.
Assuntos
Alquilantes/uso terapêutico , Fatores Imunológicos/uso terapêutico , Mieloma Múltiplo/tratamento farmacológico , Inibidores de Proteassoma/uso terapêutico , Idoso , Quimioterapia Combinada , Feminino , Seguimentos , Humanos , Quimioterapia de Manutenção , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/epidemiologia , Mieloma Múltiplo/patologia , Prognóstico , Estudos Retrospectivos , Espanha/epidemiologia , Taxa de SobrevidaRESUMO
BACKGROUND: Metastatic phyllodes tumors have poor prognosis with median overall survival of 11.5 months. The objective of this study is to identify prognostic factors and the best options for management of metastatic malignant phyllode tumors (MMPTs). PATIENTS AND METHODS: A multicentric retrospective study, including cases of MMPT from 10 sarcoma centers, was conducted. The primary end-point was overall survival (OS), and the secondary end-point was the clinical benefit of chemotherapy (CBCT) rate. RESULTS: 51 MMPT patients were included. Median time from diagnosis to metastatic recurrence was 13 months. Management of MMPT consisted in surgery of the metastatic disease for 16 patients (31.3%), radiation therapy of the metastatic disease for 15 patients (31.9%), and chemotherapy for 37 patients (72.5%). Median follow-up was 62.1 months [95% confidence interval (CI) 31-80 months]. Median OS was 11.5 months (95% CI 7.5-18.7 months). On multivariate analysis, two or more metastatic sites [hazard ratio (HR) 2.81, 95% CI 1.27-6.19; p = 0.01] and surgery of metastasis (HR 0.33, 95% CI 0.14-0.78; p = 0.01) were independently associated with OS. The CBCT rate was 31.4% and 16.7% for the first and second lines. Polychemotherapy was not superior to single-agent therapy. Alkylating-agent-based chemotherapy, possibly associated with anthracyclines, was associated with a better CBCT rate than anthracyclines alone (p = 0.049). CONCLUSIONS: The results of this study emphasize the impact of the number of metastatic sites on survival of MMPT patients and the leading role of metastasis surgery in MMPT management. If systemic therapy is used, it should include alkylating agents, which are associated with a better clinical benefit.
Assuntos
Neoplasias da Mama/terapia , Quimioterapia Adjuvante , Metástase Neoplásica/terapia , Tumor Filoide/terapia , Procedimentos Cirúrgicos Operatórios , Adulto , Idoso , Idoso de 80 Anos ou mais , Alquilantes/uso terapêutico , Neoplasias da Mama/mortalidade , Feminino , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Tumor Filoide/mortalidade , Prognóstico , Estudos Retrospectivos , Análise de Sobrevida , Adulto JovemRESUMO
BACKGROUND: The alkylating agent cyclophosphamide is used in chemotherapy regimens for various type of cancer. However, cyclophosphamide may lead to toxic side effects on the bladder, namely hemorrhagic cystitis, which can cause hematuria, and, potentially, bladder cancer. These effects are caused by acrolein, a byproduct of cyclophosphamide metabolism. In this study, a method to quantify 3-hydroxypropyl mercapturic acid (3-HPMA) in urine was developed. 3-HPMA is a stable metabolite of acrolein that serves as biomarker of acrolein. METHODS: Urine samples were collected 4 hours after cyclophosphamide administration and analyzed to determine the risk of hematuria. 3-HPMA was analyzed by reverse-phase LC-MS/MS using a triple quadrupole electrospray ionization mass spectrometer in the positive-ion mode. The mobile phase was a 90:10 (vol/vol) mixture of 0.1% formic acid in water and 0.1% formic acid in acetonitrile. Multiple reaction monitoring mode was used, with m/z 222.10 â 90.97 for 3-HPMA and 164.10 â 122.02 for the internal standard N-acetyl cysteine (NAC). Samples were prepared by acidification and dilution. RESULTS: The analytical method produced a linear response within the concentration range of 40-10,000 ng/mL. The method was validated in accordance with 2018 FDA guidelines and applied to quantify 3-HPMA in the urine of 40 patients with breast cancer. The measured concentrations ranged from 820.3 to 5596.1 ng/mg creatinine. Seven patients identified with hematuria had low 3-HPMA concentrations of 4445.824 ± 411.17 ng/mg creatinine, and 33 patients without hematuria had low 3-HPMA concentrations of 2419.4 ± 1171.8 ng/mg creatinine. CONCLUSIONS: The method was applicable for the quantification of 3-HPMA in human urine. Large variations in 3-HPMA concentrations were found in 40 patients with breast cancer treated with cyclophosphamide, with a significant difference (P < 0.05) observed between patients with hematuria and those without hematuria.
Assuntos
Acetilcisteína/análogos & derivados , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/urina , Ciclofosfamida/toxicidade , Ciclofosfamida/uso terapêutico , Acetilcisteína/urina , Acroleína/metabolismo , Adulto , Alquilantes/metabolismo , Alquilantes/uso terapêutico , Alquilantes/toxicidade , Biomarcadores/urina , Cromatografia Líquida/métodos , Ciclofosfamida/metabolismo , Feminino , Hematúria/induzido quimicamente , Humanos , Pessoa de Meia-Idade , Espectrometria de Massas por Ionização por Electrospray/métodos , Espectrometria de Massas em Tandem/métodosRESUMO
BACKGROUND: About 80% of children with steroid-sensitive nephrotic syndrome (SSNS) have relapses. Of these children, half relapse frequently, and are at risk of adverse effects from corticosteroids. While non-corticosteroid immunosuppressive medications prolong periods of remission, they have significant potential adverse effects. Currently, there is no consensus about the most appropriate second-line agent in children who are steroid sensitive, but who continue to relapse. In addition, these medications could be used with corticosteroids in the initial episode of SSNS to prolong the period of remission. This is the fourth update of a review first published in 2001 and updated in 2005, 2008 and 2013. OBJECTIVES: To evaluate the benefits and harms of non-corticosteroid immunosuppressive medications in SSNS in children with a relapsing course of SSNS and in children with their first episode of nephrotic syndrome. SEARCH METHODS: We searched the Cochrane Kidney and Transplant Register of Studies up to 10 March 2020 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA: Randomised controlled trials (RCTs) or quasi-RCTs were included if they involved children with SSNS and compared non-corticosteroid immunosuppressive medications with placebo, corticosteroids (prednisone or prednisolone) or no treatment; compared different non-corticosteroid immunosuppressive medications or different doses, durations or routes of administration of the same non-corticosteroid immunosuppressive medication. DATA COLLECTION AND ANALYSIS: Two authors independently assessed study eligibility, risk of bias of the included studies and extracted data. Statistical analyses were performed using a random-effects model and results expressed as risk ratio (RR) for dichotomous outcomes or mean difference (MD) for continuous outcomes with 95% confidence intervals (CI). The certainty of the evidence was assessed using GRADE. MAIN RESULTS: We identified 43 studies (91 reports) and included data from 2428 children. Risk of bias assessment indicated that 21 and 24 studies were at low risk of bias for sequence generation and allocation concealment respectively. Nine studies were at low risk of performance bias and 10 were at low risk of detection bias. Thirty-seven and 27 studies were at low risk of incomplete and selective reporting respectively. Rituximab (in combination with calcineurin inhibitors (CNI) and prednisolone) versus CNI and prednisolone probably reduces the number of children who relapse at six months (5 studies, 269 children: RR 0.23, 95% CI 0.12 to 0.43) and 12 months (3 studies, 198 children: RR 0.63, 95% CI 0.42 to 0.93) (moderate certainty evidence). At six months, rituximab resulted in 126 children/1000 relapsing compared with 548 children/1000 treated with conservative treatments. Rituximab may result in infusion reactions (4 studies, 252 children: RR 5.83, 95% CI 1.34 to 25.29). Mycophenolate mofetil (MMF) and levamisole may have similar effects on the number of children who relapse at 12 months (1 study, 149 children: RR 0.90, 95% CI 0.70 to 1.16). MMF may have a similar effect on the number of children relapsing compared to cyclosporin (2 studies, 82 children: RR 1.90, 95% CI 0.66 to 5.46) (low certainty evidence). MMF compared to cyclosporin is probably less likely to result in hypertrichosis (3 studies, 140 children: RR 0.23, 95% CI 0.10 to 0.50) and gum hypertrophy (3 studies, 144 children: RR 0.09, 95% CI 0.07 to 0.42) (low certainty evidence). Levamisole compared with steroids or placebo may reduce the number of children with relapse during treatment (8 studies, 474 children: RR 0.52, 95% CI 0.33 to 0.82) (low certainty evidence). Levamisole compared to cyclophosphamide may make little or no difference to the risk for relapse after 6 to 9 months (2 studies, 97 children: RR 1.17, 95% CI 0.76 to 1.81) (low certainty evidence). Cyclosporin compared with prednisolone may reduce the number of children who relapse (1 study, 104 children: RR 0.33, 95% CI 0.13 to 0.83) (low certainty evidence). Alkylating agents compared with cyclosporin may make little or no difference to the risk of relapse during cyclosporin treatment (2 studies, 95 children: RR 0.91, 95% CI 0.55 to 1.48) (low certainty evidence) but may reduce the risk of relapse at 12 to 24 months (2 studies, 95 children: RR 0.51, 95% CI 0.35 to 0.74), suggesting that the benefit of the alkylating agents may be sustained beyond the on-treatment period (low certainty evidence). Alkylating agents (cyclophosphamide and chlorambucil) compared with prednisone probably reduce the number of children, who experience relapse at six to 12 months (6 studies, 202 children: RR 0.44, 95% CI 0.32 to 0.60) and at 12 to 24 months (4 studies, 59 children: RR 0.20, 95% CI 0.09 to 0.46) (moderate certainty evidence). IV cyclophosphamide may reduce the number of children with relapse compared with oral cyclophosphamide at 6 months (2 studies, 83 children: RR 0.54, 95% CI 0.34 to 0.88), but not at 12 to 24 months (2 studies, 83 children: RR 0.99, 95% CI 0.76 to 1.29) and may result in fewer infections (2 studies, 83 children: RR 0.14, 95% CI 0.03 to 0.72) (low certainty evidence). Cyclophosphamide compared to chlorambucil may make little or no difference in the risk of relapse after 12 months (1 study, 50 children: RR 1.31, 95% CI 0.80 to 2.13) (low certainty evidence). AUTHORS' CONCLUSIONS: New studies incorporated in this review indicate that rituximab is a valuable additional agent for managing children with steroid-dependent nephrotic syndrome. However, the treatment effect is temporary, and many children will require additional courses of rituximab. The long-term adverse effects of this treatment are not known. Comparative studies of CNIs, MMF, levamisole and alkylating agents have demonstrated little or no differences in efficacy but, because of insufficient power; clinically important differences in treatment effects have not been completely excluded.
Assuntos
Imunossupressores/uso terapêutico , Síndrome Nefrótica/tratamento farmacológico , Adolescente , Alquilantes/efeitos adversos , Alquilantes/uso terapêutico , Azatioprina/efeitos adversos , Azatioprina/uso terapêutico , Criança , Pré-Escolar , Clorambucila/efeitos adversos , Clorambucila/uso terapêutico , Ciclofosfamida/efeitos adversos , Ciclofosfamida/uso terapêutico , Ciclosporina/efeitos adversos , Ciclosporina/uso terapêutico , Humanos , Imunossupressores/efeitos adversos , Lactente , Levamisol/efeitos adversos , Levamisol/uso terapêutico , Ácido Micofenólico/efeitos adversos , Ácido Micofenólico/uso terapêutico , Síndrome Nefrótica/prevenção & controle , Prednisolona/efeitos adversos , Prednisolona/uso terapêutico , Prednisona/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , Recidiva , Ribonucleosídeos/uso terapêutico , Rituximab/efeitos adversos , Rituximab/uso terapêutico , Prevenção SecundáriaRESUMO
Despite their toxicity, DNA alkylating drugs remain a cornerstone of anticancer therapy. The classical thinking was that rapidly dividing tumour cells left more of its DNA in an exposed single-stranded state, making these rapidly dividing cells more susceptible to alkylating drugs. As our understanding of DNA repair pathways has matured it is becoming clear that compromised DNA repair - a hallmark of cancer - plays a role as well in defining the therapeutic window of these toxic drugs. Hence, although new alkylating motifs are unlikely to progress through the clinic, the legacy of these medicines is that we now understand the therapeutic potential of targeting DNA damage repair pathways. Here we look at the history of alkylating agents as anticancer drugs, while also summarizing the different mechanistic approaches to covalent DNA modification. We also provide several case studies on how insights into compromised DNA repair pathways are paving the way for potent and less toxic targeted medicines against the DNA damage response.
Assuntos
Antineoplásicos , Neoplasias , Alquilantes/uso terapêutico , Antineoplásicos/farmacologia , DNA , Dano ao DNA , Reparo do DNA , Humanos , Neoplasias/tratamento farmacológico , Neoplasias/genéticaRESUMO
BACKGROUND: Epiphora is a common clinical sign whose primary cause is post-canalicular lacrimal obstruction. Treatment is both surgical and non-surgical. In the literature, there is some evidence to suggest that some treatments are superior to others, but there are no direct comparative data in this regard. OBJECTIVE OF REVIEW: To analyse the success rates of all available treatments to resolve post-canalicular acquired lacrimal obstruction. TYPE OF REVIEW: Systematic review and meta-analysis. SEARCH STRATEGY: A literature search was conducted in the US National Library of Medicine (PubMed), EMBASE, SCOPUS and Cochrane databases with a final search performed in January 2020. EVALUATION METHOD: The search strategy identified articles published later than 2000 with at least 50 procedures performed both surgically (external dacryocystorhinostomy [EXT-DCR], endoscopic dacryocystorhinostomy [END-DCR] and transcanalicular laser dacryocystorhinostomy [TCL-DCR]) and non-surgically (balloon dacryoplasty [DCP], probing-stenting [SP] and polyurethane stent [PoS]). The primary outcome was functional success, defined as symptom resolution or less than MUNK 2 scale; in addition to this, the influence of adjunctive treatments, such as application of mitomycin C and post-procedural silicone stenting, was evaluated. RESULTS: In total, 14 958 papers were selected, 440 of which were reviewed after screening; 55 were included after full-text review, which involved 9337 procedures. Mean success rate was 48.9% (35.7%-62.3%) for DCP, 54.4% (41.8%-66.5%) for SP, 73.6% (59.7%-84%) for PoS, 80% (75.1%-84%) for TCL-DCR, 89.8% (83.3%-93.9%) for EXT-DCR and 89.5% (87.2%-91.5%) for END-DCR. Among all procedures, a difference was noted between DCP and END-DCR (P < .001), DCP and EXT-DCR (P < .001), SP and END-DCR (P < .001), SP and EXT-DCR (P < .001), END-DCR and PoS (P = .016), and END-DCR and TCL-DCR (P = .001); no differences were noted between END-DCR and EXT-DCR (P = 1.00), EXT-DCR and PoS (P = .121) and EXT-DCR and TCL-DCR (P = .223). Considering surgical procedures, no differences were seen if a silicone stenting was applied, whereas, due to heterogeneity of the literature data, no statistical analysis was feasible for application of mitomycin C. CONCLUSIONS: Our analyses suggest that, among all procedures available, END-DCR and EXT-DCR should be considered as treatments of choice to resolve distal acquired lacrimal obstruction.
Assuntos
Obstrução dos Ductos Lacrimais/terapia , Alquilantes/uso terapêutico , Dacriocistorinostomia , Endoscopia , Humanos , Mitomicina/uso terapêutico , StentsAssuntos
Alquilantes , Glicoproteína Associada a Mielina , Doenças do Sistema Nervoso Periférico , Rituximab , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Alquilantes/uso terapêutico , Glicoproteína Associada a Mielina/imunologia , Doenças do Sistema Nervoso Periférico/tratamento farmacológico , Estudos Retrospectivos , Rituximab/uso terapêuticoRESUMO
OBJECTIVE: To analyze prognostic factors in the management of patients with choanal atresia. STUDY DESIGN: This is a review of 114 patients operated on for choanal atresia in a tertiary care center between November 1986 and November 2016, including clinical characteristics, surgical management, and postoperative course with final nasal patency. The data were collected in a database that was updated over time. RESULTS: Among the 114 patients, 78 were female, 77 presented with unilateral choanal atresia, and 37 presented with bilateral unilateral choanal atresia, corresponding to 151 nasal fossae. Forty-seven patients had associated abnormalities (41.2%), including CHARGE, diagnosed in 20 children (17.5%). At the end of follow-up, 91 patients (79.8%) had normal choanal patency. The identified risk factors of surgical failure were age <6 months (P = .004), weight <5 kg (P = .007), and bilateral choanal atresia (P < .001). The type of atresia, presence of associated abnormalities, surgical approach, stenting, and use of mitomycin were not significantly linked with the surgical results. CONCLUSIONS: This series highlights the importance of the timing of surgery, which is guided by the clinical ability of the infant to tolerate the procedure. Endoscopic approaches are widely performed, but a transpalatal approach, necessary in some cases of bilateral choanal atresia, does not alter the results. Unilateral choanal atresia surgery should be delayed after age 6 months and/or weight >5 kg when possible.
Assuntos
Atresia das Cóanas/cirurgia , Procedimentos Cirúrgicos Otorrinolaringológicos/métodos , Adolescente , Alquilantes/uso terapêutico , Criança , Pré-Escolar , Endoscopia/efeitos adversos , Endoscopia/métodos , Feminino , Humanos , Lactente , Masculino , Mitomicina/uso terapêutico , Procedimentos Cirúrgicos Otorrinolaringológicos/efeitos adversos , Prognóstico , Fatores de Risco , Stents/efeitos adversos , Stents/estatística & dados numéricos , Resultado do TratamentoRESUMO
BACKGROUND: The study aimed to assess the role of intraoperative mitomycin-C (MMC) application during hyperopic LASIK correction (+ 1.00 D to + 6.00 D) by examining topographic corneal changes and incidence of regression over a one-year follow-up period. METHODS: This comparative randomized control study included 68 hyperopic patients (136 eyes) divided into two groups; Group A included 34 patients (68 eyes) that had LASIK with the application of 0.02% MMC for 10 s on the stromal bed after excimer laser treatment, and group B included 34 patients (68 eyes) that had LASIK without MMC application. Uncorrected distance visual acuity (UDVA), refraction, keratometry and topography were recorded at 1st week and 1st, 3rd, 6th, and 12th months postoperation. Predictability and treatment efficacy were also recorded at the end of the follow-up period. RESULTS: Better predictability was noted in group A than in group B at the 6 month and 12 month follow-up visits, with a mean cycloplegic refraction SE of + 0.5 ± 0.31 D in group A and + 0.67 ± 0.39 D in group B at the 6 month visit, and + 0.63 ± 0.37 D in group A and + 0.89 ± 0.48 D in group B at the 12 month visit. The efficacy of the treatment at the end of the follow up period was better in group A than in group B. Group A showed fewer topographic corneal changes than group B. CONCLUSIONS: Intraoperative MMC application during hyperopic LASIK achieves better predictability and efficacy and induces fewer topographic changes and lower regression rate of hyperopia during the first postoperative year. TRIAL REGISTRATION: the Pan African Clinical Trial Registry PACTR201901543722087 , on 29 January 2019.
Assuntos
Alquilantes/uso terapêutico , Córnea/fisiopatologia , Hiperopia/cirurgia , Ceratomileuse Assistida por Excimer Laser In Situ/métodos , Mitomicina/uso terapêutico , Adulto , Topografia da Córnea , Feminino , Humanos , Hiperopia/fisiopatologia , Masculino , Pessoa de Meia-Idade , Refração Ocular/fisiologia , Acuidade Visual/fisiologia , Adulto JovemRESUMO
Uveitis is a spectrum of inflammatory disorders characterized by ocular inflammation and is one of the leading causes of preventable visual loss. The main aim of the treatment of uveitis is to control the inflammation, prevent recurrences of the disease and preserve vision while minimizing the adverse effects associated with the therapeutic agents. Initial management of uveitis relies heavily on the use of corticosteroids. However, monotherapy with high-dose corticosteroids is associated with side effects and cannot be maintained long term. Therefore, steroid-sparing agents are needed to decrease the burden of steroid therapy. Currently, the therapeutic approach for non-infectious uveitis (NIU) consists of a step-ladder strategy with the first-line option being corticosteroids in various formulations followed by the use of first-, second- and third-line agents in cases with suboptimal steroid response. Unfortunately, the agents currently at our disposal have limitations such as having a narrow therapeutic window along with their own individual potential side-effect profiles. Therefore, research has been targeted to identify newer drugs as well as new uses for older drugs that target specific pathways in the inflammatory response. Such efforts are made in order to provide targeted and safer therapy with reduced side effects and greater efficacy. Several specially designed molecular antibodies are currently in various phases of investigations that can potentially halt the inflammation in patients with NIU. In the review, we have provided a comprehensive overview of the current and upcoming therapeutic options for patients with NIU.
Assuntos
Uveíte/tratamento farmacológico , Alquilantes/uso terapêutico , Anticorpos Monoclonais Humanizados/uso terapêutico , Antimetabólitos Antineoplásicos/uso terapêutico , Glucocorticoides/uso terapêutico , Humanos , Imunossupressores/uso terapêutico , Inflamação/prevenção & controleRESUMO
OBJECTIVES: To evaluate recent studies on available and experimental therapies in preventing or minimizing corneal stromal scarring after injury. METHODS: We performed an Entrez PubMed literature search using keywords "cornea," "scarring," "haze," "opacity," "ulcer," "treatments," "therapies," "treatment complications," and "pathophysiology" resulting in 390 articles of which 12 were analyzed after filtering, based on English language and publication within 8 years, and curation for relevance by the authors. RESULTS: The 12 articles selected included four randomized control trials (RCTs) (two were double-blinded placebo-controlled RCTs, one was a prospective partially masked RCT, and one was an open-label RCT), two retrospective observational studies, and six laboratory-based studies including two studies having in vivo and in vitro experiments, one was in vivo study, one was ex vivo study, and the last two were in vitro studies. The current mainstay for preventing or minimizing corneal scarring involves the use of topical corticosteroids and local application of mitomycin C. However, supportive evidence for their use in clinical practice from well-designed RCTs is lacking. Laboratory studies on topical rosiglitazone therapy, vitamin C prophylaxis, gene therapy, and stem cell therapy have shown promising results but have yet to be translated to clinical research. CONCLUSION: There is a need for more robust randomized controlled trials to support treatments using topical corticosteroids and mitomycin C. Furthermore, their clinical efficacy and safety profile should be compared with new treatments that have shown promising results in the laboratory setting. Ultimately, the goal should be to personalize cornea scarring treatment according to the most effective treatment for the specific underlying pathology.
Assuntos
Alquilantes/uso terapêutico , Cicatriz/prevenção & controle , Lesões da Córnea/complicações , Substância Própria/efeitos dos fármacos , Glucocorticoides/uso terapêutico , Mitomicina/uso terapêutico , Prednisona/uso terapêutico , Administração Oftálmica , Cicatriz/etiologia , Quimioterapia Combinada , Humanos , Soluções OftálmicasRESUMO
BACKGROUND: Allogeneic hematopoietic cell transplantation (HCT) is a curative therapy for patients with acute myeloid leukemia (AML). However, post-HCT relapse and regimen-related toxicity remain significant barriers to long-term survival. In recent years, new conditioning regimens have been explored to improve transplantation outcomes in patients with AML. Treosulfan combines a potent immunosuppressive and antileukemic effect with a low toxicity profile. METHODS: To investigate the role of treosulfan-based conditioning, the European Society for Blood and Marrow Transplantation Acute Leukemia Working Party performed a registry analysis of 520 adult patients with AML who received treosulfan-based conditioning and underwent HCT between 2000 and 2012, including 225 patients in first complete remission, 107 in second or later complete remission, and 188 with active/advanced disease 188 (88 with primary refractory disease). The median patient age was 57 years (range, 20-73 years). Donors were human leukocyte antigen-identical siblings (n = 187), unrelated donors (n = 235), or mismatched related donors (n = 98). Conditioning regimens included treosulfan (42 g/m2 [n = 396], 36 g/m2 [n = 109], or 30 g/ m2 [n = 15]) with fludarabine or alkylating agents followed by infusion of hematopoietic stem cells (bone marrow, n = 52; peripheral blood, n = 468). RESULTS: At a median follow-up of 61 months, the 5-year overall survival, leukemia-free survival, relapse incidence, and nonrelapse mortality rates were 38%, 33%, 42%, and 25%, respectively. The incidence of grade II-IV acute and chronic graft-versus-host disease was 24% (grade III-V, 11%) and 38%, respectively. Only 11 patients (2%) developed veno-occlusive disease, with two deaths (0.4%) from veno-occlusive disease. CONCLUSIONS: Treosulfan-based conditioning regimens provide an acceptable long-term survival with favorable nonrelapse mortality and a very low risk of veno-occlusive disease. Further studies are needed to optimize the treosulfan-based conditioning regimen for patients with AML. Cancer 2017;123:2671-79. © 2017 American Cancer Society.
Assuntos
Antineoplásicos Alquilantes/uso terapêutico , Bussulfano/análogos & derivados , Transplante de Células-Tronco Hematopoéticas/métodos , Leucemia Mieloide Aguda/terapia , Agonistas Mieloablativos/uso terapêutico , Sistema de Registros , Condicionamento Pré-Transplante/métodos , Adulto , Idoso , Alquilantes/uso terapêutico , Bussulfano/uso terapêutico , Causas de Morte , Intervalo Livre de Doença , Feminino , Doença Enxerto-Hospedeiro/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Indução de Remissão , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento , Vidarabina/análogos & derivados , Vidarabina/uso terapêutico , Adulto JovemRESUMO
Patients with systemic lupus erythematosus (SLE) often require immunosuppression to induce remission of active disease exacerbations. Over the past two decades, treatment modalities for this condition have emerged leading to improved morbidity from disease related outcomes. However, as a result, infection risks and patterns have changed, leading to higher rates of opportunistic infections among this population. We report four cases of cytomegalovirus (CMV) in patients with SLE who received immunosuppressive therapy, including pulse steroids, antimetabolites such as mycophenolate mofetil, and alkylating agents such as cyclophosphamide. We propose that given the rise in prevalence of CMV, there is a need for appropriate screening for this opportunistic pathogen and studies to determine the risks and benefits of prophylactic or preemptive treatment for this virus.
Assuntos
Infecções por Citomegalovirus/diagnóstico , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Lúpus Eritematoso Sistêmico/virologia , Adulto , Alquilantes/uso terapêutico , Antimetabólitos/efeitos adversos , Antimetabólitos/uso terapêutico , Gerenciamento Clínico , Feminino , Humanos , Terapia de Imunossupressão/efeitos adversos , Terapia de Imunossupressão/métodos , Lúpus Eritematoso Sistêmico/imunologia , Pessoa de Meia-Idade , Esteroides/efeitos adversos , Esteroides/uso terapêuticoRESUMO
BACKGROUND: Anti-fibrotic, anti-VEGF (vascular endothelial growth factor) medications, or radiotherapy, as adjuvant for pterygium surgical procedure, has been suggested for reducing recurrence, but difficulties may be experienced in deciding which treatment to use. The purpose of this study was to compare the efficacies of these different adjuvants for preventing recurrence following pterygium surgery. METHODS: We conducted a systematic review to identify randomized controlled trials of patients with primary or recurrent pterygium who received anti-fibrotic, anti-VEGF medication, or radiotherapy as adjuvants in combination with surgical procedure. The surgical procedure contained bare sclera technique or petrygium excision combination with tissue grafting. The primary outcome of this study was recurrence. Direct-comparison and Bayesian network meta-analyses were performed to assess direct and indirect evidence of efficacy. RESULTS: We obtained data from 34 randomized controlled trials, representing a total of 2483 patients. Adjuvants included bevacizumab, 5-FU (5-fluorouracil), MMC (mitomycin C), and ß-RT (beta-radiotherapy). Compared with placebo, we found distinguishable improvement in recurrence with bevacizumab (odds ratio [OR] 0.38, 95% confidence interval [CI] 0.18-0.80), MMC (0.12, 95% CI 0.06-0.21), and ß-RT (0.17, 95% CI 0.04-0.69), but not with 5-FU (0.41, 95% CI 0.12-1.39). MMC significantly reduced recurrence when compared to bevacizumab (0.31, 95% CI 0.13-0.77) and 5-FU (0.28, 95% CI 0.08-0.99). The probability of having the most recurrences after excision was lowest for MMC, followed by bevacizumab and ß-RT. Similar results were found in subgroup analyses, including for primary pterygium, and the patients receiving bare sclera technique or conjunctival autograft. CONCLUSIONS: Adjuvants such as MMC, bevacizumab, and ß-RT could effectively prevent recurrence following pterygium excision. However, their efficacy and acceptability require further clarification in future randomized controlled trials.
Assuntos
Inibidores da Angiogênese/uso terapêutico , Antifibrinolíticos/uso terapêutico , Pterígio/tratamento farmacológico , Radioterapia Adjuvante/métodos , Alquilantes/uso terapêutico , Quimioterapia Adjuvante , Humanos , Procedimentos Cirúrgicos Oftalmológicos/métodos , Prevenção Primária/métodos , Pterígio/cirurgia , Ensaios Clínicos Controlados Aleatórios como Assunto , Recidiva , Prevenção Secundária/métodos , Fator A de Crescimento do Endotélio VascularRESUMO
OBJECTIVES: To inform decisions about the design and priority of further studies of emerging predictive biomarkers of high-dose alkylating chemotherapy (HDAC) in triple-negative breast cancer (TNBC) using value-of-information analysis. METHODS: A state transition model compared treating women with TNBC with current clinical practice and four biomarker strategies to personalize HDAC: 1) BRCA1-like profile by array comparative genomic hybridization (aCGH) testing; 2) BRCA1-like profile by multiplex ligation-dependent probe amplification (MLPA) testing; 3) strategy 1 followed by X-inactive specific transcript gene (XIST) and tumor suppressor p53 binding protein (53BP1) testing; and 4) strategy 2 followed by XIST and 53BP1 testing, from a Dutch societal perspective and a 20-year time horizon. Input data came from literature and expert opinions. We assessed the expected value of partial perfect information, the expected value of sample information, and the expected net benefit of sampling for potential ancillary studies of an ongoing randomized controlled trial (RCT; NCT01057069). RESULTS: The expected value of partial perfect information indicated that further research should be prioritized to the parameter group including "biomarkers' prevalence, positive predictive value (PPV), and treatment response rates (TRRs) in biomarker-negative patients and patients with TNBC" (639 million), followed by utilities (48 million), costs (40 million), and transition probabilities (TPs) (30 million). By setting up four ancillary studies to the ongoing RCT, data on 1) TP and MLPA prevalence, PPV, and TRR; 2) aCGH and aCGH/MLPA plus XIST and 53BP1 prevalence, PPV, and TRR; 3) utilities; and 4) costs could be simultaneously collected (optimal size = 3000). CONCLUSIONS: Further research on predictive biomarkers for HDAC should focus on gathering data on TPs, prevalence, PPV, TRRs, utilities, and costs from the four ancillary studies to the ongoing RCT.
Assuntos
Biomarcadores Tumorais/economia , Neoplasias de Mama Triplo Negativas/economia , Ubiquitina-Proteína Ligases/economia , Adulto , Alquilantes/economia , Alquilantes/uso terapêutico , Antineoplásicos/economia , Antineoplásicos/uso terapêutico , Análise Custo-Benefício , Técnicas de Apoio para a Decisão , Intervalo Livre de Doença , Feminino , Prioridades em Saúde/economia , Humanos , Cadeias de Markov , Pessoa de Meia-Idade , Países Baixos/epidemiologia , RNA Longo não Codificante , Ensaios Clínicos Controlados Aleatórios como Assunto , Pesquisa/economia , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/epidemiologia , Neoplasias de Mama Triplo Negativas/terapia , Proteína 1 de Ligação à Proteína Supressora de Tumor p53 , Ubiquitina-Proteína Ligases/genéticaRESUMO
The aim of the study is to investigate long-term intraocular pressure (IOP) outcome as well as complications associated with adjustable suture trabeculectomy in glaucoma patients who were uncontrolled under maximum medical therapy. In this retrospective case series, 35 eyes of 30 patients are included in the study. Adjustable suture trabeculectomy with 0.2 mg/cc mitomycin-C for 3 min was performed by the same surgeon. Subconjunctival 5-fluorouracil injection, transconjunctival suture adjustment, digital massage, and/or argon suturolysis were utilized postoperatively as needed. Complete success, qualified success, and failure were defined as IOP ≤ 18 mmHg without medication, IOP ≤ 18 mmHg with one or more medications, and IOP >18 mmHg with medication or need for additional glaucoma surgery, respectively. Of the 35 eyes, 13 had primary open angle, 18 had psuedoexfoliative, 1 had juvenile, 1 had pigmentary, 1 had uveitic, and 1 had chronic angle-closure glaucoma. Mean preoperative IOP of 30.1 ± 10.5 mmHg dropped to 10.8 ± 4.7 mmHg (p < 0.001) after a mean follow-up of 595 ± 435 days. Nine eyes had the desired IOP on first postoperative day where no transconjunctival suture adjustment was performed. Remaining 26 eyes required a mean of two adjustments (range 1-7) during the first postoperative 24 days in order to achieve a desirable IOP. Complete success, qualified success, and failure were observed in 28 (80 %), 5 (14 %), and 2 (6 %) eyes, respectively. There were no serious complications related to adjustable suture trabeculectomy. We believe adjustable suture trabeculectomy to be a safe and effective alternative to standard trabeculectomy where a desirable low IOP can be achieved.