Publications by authors named "Neil S Horowitz"

Hydatidiform mole is a trophoblastic disorder resulting from abnormal fertilization. Diagnosis is established through a combination of clinical findings, elevated serum human chorionic gonadotropin (hCG) levels, and characteristic features on transvaginal ultrasound. Timely and accurate diagnosis is essential for initiating prompt treatment and preventing medical complications.

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Antibody-drug conjugates (ADC) are emerging therapies with promising results in the treatment of solid tumors. In this study, we aimed to evaluate biomarker expression of ADCs, including folate receptor alpha (FOLR1), Nectin-4, trophoblast cell surface antigen 2 (Trop-2), and tissue factor (TF) in a diverse cohort of gestational trophoblastic disease. Immunohistochemistry for FOLR1, Nectin-4, Trop-2, and TF was evaluated in tissue microarray of 18 complete hydatidiform moles (CHM) and whole tissue sections of 62 gestational trophoblastic neoplasia (GTN) by 2 gynecologic pathologists.

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Purpose: In a phase II study, letrozole/abemaciclib demonstrated an objective response rate of 30% and a median progression-free survival (PFS) of 9.1 months in recurrent estrogen receptor-positive endometrial cancer (EC). While tissue-based tumor profiling revealed several mechanistically relevant candidate baseline genomic predictors of response, circulating tumor DNA (ctDNA) is a less invasive alternative to monitor therapeutic efficacy and define acquired resistance.

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Background: There are limited data around adjuvant radiotherapy following surgical management for patients with early-stage uterine carcinosarcoma (UCS). We compared outcomes for patients with early-stage UCS who underwent adjuvant chemotherapy (CT) and pelvic external beam radiotherapy (EBRT) vs. CT and vaginal brachytherapy (VBT) vs.

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Objective: To assess the performance of pembrolizumab for the treatment of Gestational Trophoblastic Neoplasia (GTN).

Methods: The Medical Subject Headings related to immunotherapy/pembrolizumab and GTN were used alone or in combination to retrieve relevant articles. The authors searched in EMBASE, MEDLINE/PubMed, Elsevier's Scopus, and Web of Science until November/2024.

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Importance: Despite the absence of high-quality evidence of its safety and effectiveness, minimally invasive surgery (MIS) is increasingly used to treat advanced epithelial ovarian cancer (EOC).

Objective: To assess the feasibility of conducting a full-scale randomized clinical trial (RCT) designed to compare the efficacy of MIS vs laparotomy in patients with advanced-stage EOC and a complete or partial response to neoadjuvant chemotherapy (NACT).

Design, Setting, And Participants: This lead-in pilot phase of LANCE (Laparoscopic Cytoreduction After Neoadjuvant Chemotherapy), an international, open-label, noninferiority RCT, opened to enrollment in September 2020 and enrolled the 100th eligible patient in February 2023.

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Ultra high-risk gestational trophoblastic neoplasia (GTN) refers to patients with World Health Organization prognostic risk scores of at least 13. The mortality risk for these patients averages 30%. Ultra high-risk GTN more frequently presents with higher tumor volume, liver and/or brain metastases, and very high human chorionic gonadotropin levels.

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Gestational trophoblastic neoplasia (GTN) is a rare form of cancer that is treated according to the World Health Organization (WHO) risk score, which predicts responsiveness to single-agent chemotherapy. Patients with WHO risk scores ≤6 have low-risk GTN, for which cure rates near 100%. Most women with low-risk GTN will respond to single-agent chemotherapy, which is given with either methotrexate or dactinomycin, and allows women to retain their fertility.

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Article Synopsis
  • - Placental site trophoblastic disease (PSTT) and epithelioid trophoblastic tumor (ETT) are rare types of gestational trophoblastic neoplasia (GTN) that present distinct clinical features and treatment approaches, notably without significantly elevated human chorionic gonadotropin (hCG) levels.
  • - Management typically involves surgery, such as hysterectomy, and lymph node removal; there are some cases where fertility-sparing surgeries have been performed for localized disease.
  • - While early-stage, low-risk cases show good survival rates, high-risk patients, especially those with advanced disease or post-48 months from previous pregnancies, have a poor prognosis and require new treatment options.
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High-risk gestational trophoblastic neoplasia encompasses patients with high volumes of disease or diffuse metastatic involvement who are unlikely to achieve remission with single-agent chemotherapy. Etoposide-based multi-drug regimens form the core of high-risk therapy. Second-line therapy includes platinum-based regimens.

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Gestational trophoblastic neoplasia (GTN) is primarily treated with chemotherapy, but surgery plays a key role at different steps in disease management, including initial diagnosis, primary therapy, and salvage options. Initial diagnosis is usually made by electric or manual vacuum aspiration for molar pregancy or uterine curettage for other forms of GTN. Excisional procedures of localized disease, whether second curettage or hysterectomy, can obviate chemotherapy, but patients still require monitoring for relapse.

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Article Synopsis
  • Complete and partial molar pregnancies result from abnormal fertilization and excessive growth of specific cells called syncytiotrophoblasts.
  • Early diagnosis has improved, reducing severe complications, but the risk of developing gestational trophoblastic neoplasia (GTN) remains the same.
  • Initial assessments should include blood tests and ultrasounds, and after treatment, ongoing monitoring is crucial; psychological support is recommended for all patients.
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Objective: To report the New England Trophoblastic Disease Center (NETDC) experience with atypical placental site nodules (APSN).

Methods: The NETDC registry was reviewed from 2005 to 2022 and clinical data abstracted. Expert pathologists in GTD reviewed available slides with concurrent immunohistochemical analysis.

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Purpose: To assess efficacy and toxicity of cisplatin (C) and gemcitabine (G) with intensity-modulated radiation therapy (IMRT) in patients with locally advanced vulvar cancer not amenable to surgery.

Methods: Patients enrolled in a single-arm phase II study. Pretreatment inguinal-femoral nodal assessment was performed.

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Objective: To relate the distance traveled from the patient's residence to the gestational trophoblastic neoplasia (GTN) reference center (RC) and the occurrence of unfavorable clinical outcomes, as well as to estimate the possible association between this distance and the risk of metastatic disease at presentation, the need for multiagent chemotherapy to achieve remission and loss to follow-up before remission.

Study Design: Retrospective historical cohort study of patients with GTN followed at 8 Brazilian GTN-RC, from January 1st, 2000 - December 31st, 2017.

Results: Evaluating 1055 cases of GTN, and using a receiver operating characteristic curve, we found a distance of 56 km (km) from the residence to the GTN-RC (sensitivity = 0.

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Objective: To evaluate the efficacy of immunotherapy for GTN treatment after methotrexate-resistance or in cases of multiresistant disease, through a systematic review, as well as to present the first 4 Brazilian cases of immunotherapy for GTN treatment.

Methods: Three independent researchers searched five electronic databases (EMBASE, LILACS, Medline, CENTRAL and Web of Science), for relevant articles up to February/2023 (PROSPERO CRD42023401453). The quality assessment was performed using the Newcastle Ottawa scale for case series and case reports.

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Objective: To describe the natural history of hydatidiform mole (HM) after intracytoplasmic sperm injection (ICSI), emphasizing the clinical and oncological outcomes, as compared to patients who had HM after spontaneous conception (SC).

Study Design: Retrospective historical cohort study of patients with HM followed at the Rio de Janeiro Federal University, from January 1st 2000-December 31st 2020.

Results: Comparing singleton HM after SC to those following ICSI there were differences in terms of maternal age (24 vs 34 years, p < 0.

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Objective: To investigate the efficacy and toxicity of etoposide, methotrexate, actinomycin D alternating with cyclophosphamide, and vincristine (EMACO) for treatment of gestational trophoblastic neoplasia, and for factors independently associated with EMACO resistance and disease-specific death in an international cohort.

Methods: Medical records of GTN patients who received EMACO during 1986-2019 from gestational trophoblastic disease centers from four countries including the USA, Thailand, Hungary, and Brazil, were retrospectively reviewed. Among 335 GTN patients, 266 patients who received EMACO as primary chemotherapy were included in the primary treatment group, and 69 patients who received EMACO after relapse/resistance to single-agent chemotherapy were included in the prior treatment group.

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Objective: To relate preevacuation platelet count and leukogram findings, especially neutrophil/lymphocyte ratios (NLR) and platelet/lymphocyte ratios with the occurrence of gestational trophoblastic neoplasia (GTN) after complete hydatidiform mole (CHM) among Brazilian women.

Methods: Retrospective cohort study of patients with CHM followed at Rio de Janeiro Federal University, from January/2015-December/2020. Before molar evacuation, all patients underwent a medical evaluation, complete blood count and hCG measurement, in addition to other routine preoperative tests.

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Article Synopsis
  • Gestational trophoblastic neoplasia (GTN) is a rare tumor from trophoblastic tissue, commonly arising after events like miscarriage or hydatidiform mole, and has high remission rates with chemotherapy.
  • Studies from various databases have reviewed GTN treatment, emphasizing the importance of timely diagnosis and treatment strategies.
  • Treatment options include multiagent chemotherapy for early and advanced cases, while surgery is reserved for specific situations, and resistance can be treated with either salvage chemotherapy or immunotherapy.
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  • The study aimed to evaluate the impact of the COVID-19 pandemic on the incidence and severity of molar pregnancy (MP) and postmolar gestational trophoblastic neoplasia (GTN) in Brazil.
  • Researchers collected data from 2,662 patients treated between 2015 and 2020, using a mix of retrospective cohort analysis and questionnaires to assess health conditions during the pandemic.
  • Results showed that while the overall incidence of MP/GTN remained stable during 2020, patients diagnosed during the pandemic had a higher likelihood of being diagnosed later in pregnancy and experienced longer delays in starting chemotherapy compared to the pre-pandemic years.
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Female carriers of pathogenic/likely pathogenic (P/LP) BRCA1/2 variants are at increased risk of developing breast and ovarian cancer. Currently, the only effective strategy for ovarian cancer risk reduction is risk-reducing bilateral salpingo-oophorectomy (RR-BSO), which carries adverse effects related to early menopause. There is ongoing investigation of inhibition of the RANK ligand (RANKL) with denosumab as a means of chemoprevention for breast cancer in carriers of BRCA1 P/LP variants.

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