Publications by authors named "Bob T Li"

Purpose: Precision medicine according to molecularly defined subgroups offers great potential to improve outcomes for patients with metastatic lung adenocarcinoma. This study describes clinical outcomes and the impact of co-occurring genetic alterations on outcomes following stereotactic radiosurgery (SRS) among patients with Kirsten rat sarcoma viral oncogene homolog (KRAS)-mutant lung adenocarcinoma.

Methods And Materials: A total of 195 patients with KRAS-mutant lung adenocarcinoma were treated with SRS for brain metastases (BMs) between 2014 and 2018 with follow-up until 2022 or death.

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Introduction: We describe the safety of sotorasib monotherapy in patients with KRAS G12C-mutated advanced non-small cell lung cancer (NSCLC) and discuss practical recommendations for managing key risks.

Methods: Incidence rates of treatment-related adverse events (TRAEs) were pooled from 4 clinical trials: CodeBreaK 100 (NCT03600883), CodeBreaK 101 (NCT04185883), CodeBreaK 105 (NCT04380753), and CodeBreaK 200 (NCT04303780) and graded according to CTCAE v5.0.

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Article Synopsis
  • Researchers are merging unstructured patient data with structured health records to create the MSK-CHORD dataset, consisting of varied cancer types from nearly 25,000 patients at Memorial Sloan Kettering Cancer Center.
  • This dataset allows for in-depth analysis of cancer outcomes using advanced techniques like natural language processing, revealing new relationships that smaller datasets may not show.
  • Using MSK-CHORD for machine learning models, findings suggest that incorporating features from these unstructured texts can better predict patient survival than relying solely on genomic data or cancer staging.
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Background: Adavosertib is a first-in-class, selective small-molecule inhibitor of Wee1. Olaparib is an inhibitor of poly(ADP-ribose) polymerase (PARP). Preclinical data suggest that adavosertib enhances the antitumor effect of PARP inhibitors.

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Trastuzumab deruxtecan (T-DXd) is a human epidermal growth factor receptor 2 (HER2)-targeting antibody drug conjugate that has remarkable activity in HER2-positive cancers. However, the degree of benefit of T-DXd is not uniform among solid tumors even with high levels of HER2. Despite high HER2 expression, the HER2/T-DXd complex may not always undergo internalization and payload release dependent on the receptor's conformation and context.

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Pretreatment prognostication, on-treatment monitoring, and early detection of physiological symptoms are considerable challenges in cancer. We describe the feasibility of high-resolution wearable data (steps per day, walking speed) to longitudinally profile physiological trajectories extracted from Apple Health data in three patients with lung cancer from diagnosis through cancer treatment after obtaining informed consent. We used descriptive statistics to describe our approach of building longitudinal physiological profiles.

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Approximately 50% of patients with surgically resected early-stage lung cancer develop distant metastasis. At present, there is no in vivo metastasis model to investigate the biology of human lung cancer metastases. Using well-characterized lung adenocarcinoma (LUAD) patient-derived organoids (PDOs), we establish an in vivo metastasis model that preserves the biologic features of human metastases.

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Article Synopsis
  • ALK-positive lung cancers exhibit molecular diversity and pose challenges due to treatment resistance, prompting the need for innovative strategies using ctDNA monitoring.
  • The ALKTERNATE pilot study analyzed alternating treatments of lorlatinib and crizotinib in patients resistant to previous ALK inhibitors, focusing on outcomes like treatment failure time, safety, and patient experiences.
  • Results showed that the alternating therapy was safe and effective for most participants, with an average treatment failure time of 10 months and overall survival of 23 months, indicating the importance of genetic factors in treatment response.
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The co-occurrence of germline and somatic oncogenic alterations is frequently observed in breast cancer, but their combined biologic and clinical significance has not been evaluated. To assess the role of germline-somatic interactions on outcomes in routine practice, we developed an integrated clinicogenomic pipeline to analyze the genomes of over 4,500 patients with breast cancer. We find that germline (g) -associated tumors are enriched for loss-of-function mutations and manifest poor outcomes on standard-of-care, front-line CDK4/6 inhibitor (CDK4/6i) combinations.

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Purpose: Small cell lung cancer (SCLC) is characterized by rapid progression after platinum resistance. Circulating tumor (ctDNA) dynamics early in treatment may help determine platinum sensitivity.

Materials And Methods: Serial plasma samples were collected from patients receiving platinum-based chemotherapy for SCLC on the first 3 days of cycle one and on the first days of subsequent cycles with paired samples collected both before and again after infusions.

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Introduction: No definitive answers currently exist regarding optimal first-line therapy for HER2-mutant NSCLC. Access to rapid tissue sequencing is a major barrier to precision drug development in the first-line setting. ctDNA analysis has the potential to overcome these obstacles and guide treatment.

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Cancer-associated venous thromboembolism (VTE) is a major source of oncologic cost, morbidity and mortality. Identifying high-risk patients for prophylactic anticoagulation is challenging and adds to clinician burden. Circulating tumor DNA (ctDNA) sequencing assays ('liquid biopsies') are widely implemented, but their utility for VTE prognostication is unknown.

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Article Synopsis
  • - Trastuzumab deruxtecan is a newly approved cancer treatment specifically for HER2-mutant non-small-cell lung cancer, and this study explored its effectiveness in treating other metastatic solid tumors with similar HER2 mutations.
  • - Conducted as an open-label, phase 2 study across 29 centers in multiple regions, it involved 102 patients aged 18 and older who had previously received treatment for their cancer and continued to experience disease progression.
  • - Results showed that the treatment led to a 29.4% objective response rate, indicating some level of effectiveness, and a median follow-up of nearly 9 months revealed information about its safety and anti-tumor activity.
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RAS family variants-most of which involve KRAS-are the most commonly occurring hotspot mutations in human cancers and are associated with a poor prognosis. For almost four decades, KRAS has been considered undruggable, in part due to its structure, which lacks small-molecule binding sites. But recent developments in bioengineering, organic chemistry and related fields have provided the infrastructure to make direct KRAS targeting possible.

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Importance: Less than 5% of patients with cancer enroll in a clinical trial, partly due to financial and logistic burdens, especially among underserved populations. The COVID-19 pandemic marked a substantial shift in the adoption of decentralized trial operations by pharmaceutical companies.

Objective: To assess the current global state of adoption of decentralized trial technologies, understand factors that may be driving or preventing adoption, and highlight aspirations and direction for industry to enable more patient-centric trials.

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Article Synopsis
  • DESTINY-Lung01 is a phase 2 study investigating the effectiveness and safety of trastuzumab deruxtecan for patients with HER2-overexpressing non-small-cell lung cancer (NSCLC) who cannot undergo surgery or have metastases.
  • The study involved patients aged 18 and older, treated at 20 hospitals across multiple countries, with a specific focus on those whose cancer had progressed despite standard treatments and had certain HER2 immunohistochemistry scores.
  • A total of 49 patients were enrolled in the first treatment cohort, receiving either 5.4 mg/kg or 6.4 mg/kg doses of the drug every three weeks, with their response rates and safety being key focus points of the analysis.
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  • The study investigates the impact of tumor hypoxia on the treatment of HPV-related oropharyngeal carcinoma to potentially reduce toxicity from standard chemoradiotherapy by de-escalating dosages for nonhypoxic tumors.
  • In a phase II trial, patients underwent surgery and were evaluated for hypoxia using PET scans, with 128 nonhypoxic patients receiving 30 Gy and 24 hypoxic patients receiving the standard 70 Gy treatment.
  • Results showed a 2-year locoregional control rate of 94.7%, with lower adverse effects in the 30 Gy group, suggesting that targeting treatment based on tumor hypoxia may improve patient outcomes and reduce side effects.
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Introduction: Patients with EGFR-mutant NSCLC have a high incidence of brain metastases. The EGFR-directed tyrosine kinase inhibitor osimertinib has intracranial activity, making the role of local central nervous system (CNS)-directed therapies, such as radiation and surgery, less clear.

Methods: Patients with EGFR-mutant NSCLC and brain metastases who received osimertinib as initial therapy after brain metastasis diagnosis were included.

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Objectives: The study objectives were to assess the outcomes of lung resection in patients with non-small cell lung cancer previously treated with nonoperative treatment and to identify prognostic factors associated with survival.

Methods: Patients who underwent surgery (2010-2022) after initial nonoperative treatment at a single institution were identified from a prospectively maintained database. Exclusion criteria included metachronous cancer, planned neoadjuvant therapy, and surgery for diagnostic or palliative indications.

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What Is This Summary About?: This is a plain language summary of a study called CodeBreaK 100. The CodeBreaK 100 study included patients with non-small-cell lung cancer that had spread outside the lung (advanced). Lung cancer is one of the most common forms of cancer.

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Article Synopsis
  • Horizon scanning (HS) helps find new medicines for diseases like cancer to help government decision-makers plan better.
  • Researchers created a special method combining expert opinions and surveys to figure out which medicines are most important for budget planning in Australia.
  • They discovered that patients care more about side effects and quality of life, while doctors focus mainly on survival, and their method successfully found many important new medicines for cancer treatment.
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  • Researchers studied the association of circulating tumor DNA (ctDNA) with recurrence in patients with unresectable non-small cell lung cancer (NSCLC) following definitive radiation therapy, aiming for better disease management.
  • A cohort of 17 patients had 70 plasma samples analyzed, revealing an 82% detection rate for ctDNA before treatment; however, only 35% were ctDNA-positive shortly after treatment, all of whom showed clinical progression.
  • The findings indicated that ctDNA positivity significantly correlated with worse progression-free survival, suggesting that monitoring ctDNA could facilitate early recurrence detection and help identify patients who may need more aggressive treatment.
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Background: Cancers with non-V600 BRAF-activating alterations have no matched therapy. Preclinical data suggest that these tumors depend on ERK signaling; however, clinical response to MEK/ERK inhibitors has overall been low. We hypothesized that a narrow therapeutic index, driven by ERK inhibition in healthy (wild-type) tissues, limits the efficacy of these inhibitors.

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Up to 50% of patients with non-small cell lung cancer (NSCLC) develop brain metastasis (BM), yet the study of BM genomics has been limited by tissue access, incomplete clinical data, and a lack of comparison with paired extracranial specimens. Here we report a cohort of 233 patients with resected and sequenced (MSK-IMPACT) NSCLC BM and comprehensive clinical data. With matched samples (47 primary tumor, 42 extracranial metastatic), we show CDKN2A/B deletions and cell cycle pathway alterations to be enriched in the BM samples.

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