Publications by authors named "Bassam Mattar"

Lisocabtagene maraleucel (liso-cel) is an autologous, CD19-directed, 4-1BB chimeric antigen receptor (CAR) T-cell product approved for relapsed/refractory (R/R) large B-cell lymphoma (LBCL). We present the OUTREACH primary analysis, evaluating the safety and efficacy of outpatient monitoring after liso-cel treatment at community sites in the United States. Adults with R/R LBCL after ≥2 prior lines of therapy received liso-cel.

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Background: RNA-based genomic risk assessment estimates chemotherapy benefit in patients with hormone-receptor positive (HR+)/Human Epidermal Growth Factor 2-negative (ERBB2-) breast cancer (BC). It is virtually used in all patients with early HR+/ERBB2- BC regardless of clinical recurrence risk.

Patients And Methods: We conducted a retrospective chart review of adult patients with early-stage (T1-3; N0; M0) HR+/ERBB2- BC who underwent genomic testing using the Oncotype DX (Exact Sciences) 21-genes assay.

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Background: Liquid biopsy testing offers a significant potential in selecting signal-matched therapies for advanced solid malignancies. The feasibility of liquid biopsy testing in a community-based oncology practice, and its actual impact on selecting signal-matched therapies, and subsequent survival effects have not previously been reported.

Patients And Methods: A retrospective chart review was conducted on adult patients with advanced solid cancer tested with a liquid-biopsy assay between December 2018 and 2019, in a community oncology practice.

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Richter syndrome (RS) represents a transformation from chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) to aggressive lymphoma, most commonly diffuse large B-cell lymphoma (DLBCL), which is associated with a dismal prognosis. Patients with DLBCL-RS have poor outcomes with DLBCL-directed therapy; thus, consolidation with hematopoietic cell transplantation (HCT) has been used, with durable remissions observed. Studies reporting HCT outcomes in patients with DLBCL-RS have been small, have not evaluated the prognostic impact of cytogenetic risk factors, and were conducted prior to the era of novel targeted therapy of CLL/SLL.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of induction chemotherapy before trimodality therapy in patients with esophageal or gastroesophageal junction adenocarcinoma, building on previous findings that suggested potential survival benefits.
  • In a phase 2 trial involving 28 centers, patients were randomly assigned to receive either induction chemotherapy (Arm A) or none (Arm B) followed by standard treatment, with pathologic complete response (pathCR) as the primary measure of success.
  • Results indicated that while the primary endpoint (pathCR) was not improved, patients receiving induction chemotherapy had significantly longer overall survival and disease-free survival, especially those with well/moderately differentiated tumors, prompting further investigation in future trials.
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Purpose: Aromatase inhibitors are the most commonly prescribed adjuvant endocrine therapy for hormone-dependent early breast cancer in postmenopausal women. Among Canadian Cancer Trials Group MA.27 participants, anastrozole and exemestane had comparable 5-year event-free survival.

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Background: Dehydroepiandrosterone (DHEA) is helpful for treating vaginal symptoms. This secondary analysis evaluated the impact of vaginal DHEA on hormone concentrations, bone turnover, and vaginal cytology in women with a cancer history.

Methods: Postmenopausal women, diagnosed with breast or gynecologic cancer, were eligible if they reported at least moderate vaginal symptoms.

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Bendamustine hydrochloride (BDM) is approved in the United States to treat chronic lymphocytic leukemia and relapsed indolent B-cell non-Hodgkin lymphoma. The first formulation marketed in the United States (original BDM) was a lyophilized product requiring reconstitution prior to dilution to the final admixture. A liquid formulation of BDM was subsequently introduced that did not require reconstitution before dilution.

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Purpose Treatment options for neuroendocrine tumors (NETs) remain limited. This trial assessed the progression-free survival (PFS) of bevacizumab or interferon alfa-2b (IFN-α-2b) added to octreotide among patients with advanced NETs. Patients and Methods Southwest Oncology Group (SWOG) S0518, a phase III study conducted in a US cooperative group system, enrolled patients with advanced grades 1 and 2 NETs with progressive disease or other poor prognostic features.

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Erythropoiesis-stimulating agents (ESAs) epoetin alfa (EA) and darbepoetin alfa (DA) increase hemoglobin (Hb) levels and reduce red blood cell (RBC) transfusion requirements in patients with cancer chemotherapy-associated anemia (CAA). Extended-interval ESA dosing (administration less than once weekly) is common with DA, but previous studies suggested that EA might also be administered less often than weekly. In this multicenter prospective trial, 239 CAA patients with Hb <10.

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Introduction: Despite the advances in radiation techniques and chemotherapy, survival with current platinum-based chemotherapy and concomitant thoracic radiation remains dismal. Bortezomib, a proteasome inhibitor, modulates apoptosis and cell cycle through disruption of protein degradation. The combination of bortezomib and carboplatin/paclitaxel and concurrent radiation in unresectable stage III non-small-cell lung cancer was evaluated in this phase I/II study.

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Primary cardiac angiosarcoma is extremely rare, but it is the most common primary malignant cardiac tumor. We herein present the case of a 51-year-old man who presented with symptoms of acute right heart failure, secondary to pericardial tamponade. Pericardiocentesis showed bloody fluid with negative pathology.

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Objective: We conducted a multicenter phase II trial to assess the efficacy and toxicity of docetaxel and carboplatin combination as neoadjuvant therapy for stage II or III breast cancer (BC).

Methods: Patients received 75 mg/m of docetaxel and AUC 6 of carboplatin on day 1 followed by pegfilgrastim on day 2, every 14 days for 4 cycles, followed by definitive breast surgery. The primary endpoint was the proportion of patients achieving pathologic complete remission (pCR), defined as disappearance of all invasive and in situ tumors in the breast and axilla after chemotherapy.

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Background: Chemotherapy-induced peripheral neuropathy (CIPN) is characterized by numbness, tingling, and shooting/burning pain. This analysis was performed to describe the relationship between numbness, tingling, and shooting/burning pain in patients with CIPN, as reported using the EORTC QLQ-CIPN20 (CIPN20).

Methods: Baseline CIPN20 data were provided for all patients on a prospective trial designed to treat patients with bothersome CIPN.

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Background: There is increasing evidence that paclitaxel and carboplatin are clinically active in the treatment of metastatic melanoma (MM). ABI-007 is an albumin-bound formulation of paclitaxel that has demonstrated single-agent activity against metastatic melanoma.

Methods: A parallel phase II trial was conducted in patients with unresectable stage IV melanoma who were either chemotherapy naive (CN) or previously treated (PT).

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Sleep disorders are a substantial problem for cancer survivors, with prevalence estimates ranging from 23% to 61%. Although numerous prescription hypnotics are available, few are approved for long-term use or have demonstrated benefit in this circumstance. Hypnotics may have unwanted side effects and are costly, and cancer survivors often wish to avoid prescription drugs.

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Purpose: Rash occurs in >50% of patients prescribed epidermal growth factor receptor (EGFR) inhibitors. This study was undertaken to determine whether sunscreen prevents or mitigates these rashes.

Methods: This placebo-controlled, double-blinded trial enrolled rash-free patients starting an EGFR inhibitor.

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Background: Chemotherapy-induced peripheral neuropathy (CIPN) is a troublesome chronic symptom that has no proven pharmacologic treatment. The purpose of this double-blind randomized placebo-controlled trial was to evaluate a novel compounded topical gel for this problem.

Methods: Patients with CIPN were randomized to baclofen 10 mg, amitriptyline HCL 40 mg, and ketamine 20 mg in a pluronic lecithin organogel (BAK-PLO) versus placebo (PLO) to determine its effect on numbness, tingling, pain, and function.

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Background: Postmenopausal women with osteoporosis/osteopenia are at increased risk of fracture. Aromatase inhibitors further increase bone loss in these patients. This study evaluates whether zoledronic acid prevents the bone loss expected when these patients initiate letrozole.

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Objectives: The objective of this study was to evaluate the response rate and toxicities of the combination of oral topotecan and carboplatin in patients with untreated extensive stage small cell lung cancer (ES-SCLC). Previous studies have suggested improved outcomes with a topoisomerase I inhibitor in combination with a platinum agent.

Methods: Twenty-six patients with previously untreated, ES-SCLC were evaluable in this phase II trial.

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Purpose: This study tested whether infliximab, a chimeric IgG1kappa monoclonal antibody that blocks tumor necrosis factor (TNF) alpha, improves/stabilizes weight loss in elderly and/or poor performance status patients with metastatic non-small cell lung cancer (NSCLC).

Methods: This double-blind trial randomly assigned patients to infliximab/docetaxel (n=32) versus placebo/docetaxel (n=29). The primary endpoint was > or = 10% weight gain.

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Purpose: This pilot trial sought to investigate whether any of three doses of American ginseng (Panax quinquefolius) might help cancer-related fatigue. A secondary aim was to evaluate toxicity.

Methods: Eligible adults with cancer were randomized in a double-blind manner, to receive American ginseng in doses of 750, 1,000, or 2,000 mg/day or placebo given in twice daily dosing over 8 weeks.

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This report describes a patient diagnosed with a cardiac angiosarcoma. The patient presented with cardiac tamponade. A pericardiocentesis revealed a bloody effusion, but cytology was nondiagnostic and a chest computed tomography showed only mediastinal lymphadenopathy.

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Purpose: Therapy of recurrent/metastatic squamous cell carcinoma of the head and neck results in median progression-free survival (PFS) of 2 months. These cancers are rich in epidermal growth factor receptor (EGFR). We wished to determine whether the addition of cetuximab, which inhibits activation of EGFR, would improve PFS.

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