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  • 1
    Online Resource
    Online Resource
    American Society of Clinical Oncology (ASCO) ; 2017
    In:  Journal of Clinical Oncology Vol. 35, No. 15_suppl ( 2017-05-20), p. e14569-e14569
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 35, No. 15_suppl ( 2017-05-20), p. e14569-e14569
    Abstract: e14569 Background: With the advent of immune-checkpoint inhibitor (ICI) therapy, thyroid function test abnormalities (TFTA) are common with reported incidence range of 2-15%. Our aim was to describe the incidence of TFTAs retrospectively in patients (pts) on ICI therapy. Methods: 285 pts reviewed (178 male, 107 female; ages 16-94) of which 218 had no baseline TFTA, 61 had baseline TFTAs, and 6 had thyroidectomy (excluded). Pts received at least one dose of ipilimumab (I) and/or nivolumab (N) or pembrolizumab (P). Post-treatment TFTA was classified according to definitions of thyroid abnormalities when possible. Results: A total of 35% (76/218) pts had new onset TFTAs on ICI. Of note, 70.5% (43/61) had baseline TFTA that were exacerbated by ICI. Median time to new onset or exacerbated baseline TFTA were 46 & 33 days respectively. Of note, 65% (20/31) of pts on both I+N had new onset TFTA, compared to 31.3% (15/48) with I, 31.5% (28/89) N, 26% (13/50) P. Conclusions: Incidence of TFTAs with ICI was higher than expected in our pts. Pts with baseline TFTA and/or I+N combination therapy had higher incidence of TFTA than one agent ICI therapy. In conclusion, we recommend more frequent evaluation of TFT in the first two months, especially in those with baseline TFTA. [Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2017
    detail.hit.zdb_id: 2005181-5
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  • 2
    Online Resource
    Online Resource
    Oxford University Press (OUP) ; 2018
    In:  The Oncologist Vol. 23, No. 10 ( 2018-10-01), p. 1236-1241
    In: The Oncologist, Oxford University Press (OUP), Vol. 23, No. 10 ( 2018-10-01), p. 1236-1241
    Abstract: With the advent of immune-checkpoint inhibitor (ICI) therapy (anti-CTLA-4, anti-PD-1), immune-related adverse events such as thyroid function test abnormalities (TFTAs) are common, with a reported incidence range of 2%–15% depending upon the ICI used. The aim of this study is to describe the incidence of TFTAs retrospectively in patients who received ICI therapy. Methods A total of 285 patients were reviewed (178 male, 107 female; 16–94 years of age), of whom 218 had no baseline TFTAs, 61 had baseline TFTAs, and 6 had a history of thyroidectomy (excluded). At least one dose of ipilimumab and/or nivolumab or pembrolizumab was administered. Post-ICI therapy TFTAs were classified according to standard definitions of thyroid conditions when possible. Results A total of 35% (76/218) patients had new-onset TFTAs on ICI therapy. Of note, 70.5% (43/61) had baseline TFTAs that were exacerbated by ICI therapy. The median times to new-onset or exacerbated baseline TFTA were 46 and 33 days, respectively. Of note, 64.5% (20/31) of patients on both ipilimumab and nivolumab had new-onset TFTAs, compared with 31.3% (15/48) on ipilimumab, 31.5% (28/89) on nivolumab, and 26% (13/50) on pembrolizumab. Conclusion The incidence of TFTAs with ICI therapy was higher than previously reported. Patients with baseline TFTAs and/or who were receiving ipilimumab and nivolumab combination therapy had a higher incidence of TFTAs than patients receiving single-agent ICI therapy. We recommend more frequent evaluation of thyroid function in the first 8 weeks, especially in patients with baseline TFTAs. Implications for Practice Increased use of immune-checkpoint inhibitors in cancer treatment has highlighted the importance of monitoring for and treating immune-related adverse events. This study was conducted to assess the incidence of thyroid function test abnormalities retrospectively in patients with cancer on immune-checkpoint inhibitors, which is not known exactly. This study is unique in that it included patients with a variety of histologic subtypes of cancer and also followed the clinical course of patients with baseline thyroid function test abnormalities. This study can help make oncologists aware that the incidence of thyroid function test abnormalities is higher than anticipated. Early identification and timely treatment can help ameliorate symptoms for patients and improve their overall quality of life.
    Type of Medium: Online Resource
    ISSN: 1083-7159 , 1549-490X
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2018
    detail.hit.zdb_id: 2023829-0
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  • 3
    In: The Journal of Immunology, The American Association of Immunologists, Vol. 210, No. 1_Supplement ( 2023-05-01), p. 66.03-66.03
    Abstract: Immune checkpoint blockade (ICB) therapy has been revolutionary in its ability to treat advanced malignancies. Yet many patients receiving ICB develop Immune related adverse events (IRAEs), a leading cause for patients to discontinue treatment. Analyzing patients who develop IRAEs can help advance our knowledge of the molecular drivers of these poorly understood off target toxicities. Methods: Our recent study of plasma from patients undergoing ipilimumab (anti-CTLA4) or pembrolizumab (anti-PD1) therapy for melanoma, lung cancer or other solid tumors was assessed using high-resolution liquid chromatography-tandem mass spectrometry. Results: We uncovered a novel protective mechanism related to a class of circulating bio-active lipids that suppress ICB-related IRAEs. Significant reduction of bio-active lipids in circulation was associated with increased ICB-mediated IRAEs. Mouse-models (both DSS-colitis and humanized models) were used to show that supplementation with these lipids ameliorated colonic inflammation without impacting ICB-driven tumor regression. We also uncovered a significant correlation between increasing neutrophil counts and decreased bioactive lipids in circulation. Conclusion: These results uncover a previously unidentified regulatory mechanism whereby the identified lipids in circulation specifically suppress deleterious inflammation during ICB therapy, while preserving anti-tumor immunity, suggesting that supplementation of bio-active lipids can be developed as a new therapeutic strategy to improve clinical outcomes in cancer immunotherapy. Supported by grants from NIH (R01CA256133-02)
    Type of Medium: Online Resource
    ISSN: 0022-1767 , 1550-6606
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    Language: English
    Publisher: The American Association of Immunologists
    Publication Date: 2023
    detail.hit.zdb_id: 1475085-5
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  • 4
    In: Cancer Immunology, Immunotherapy, Springer Science and Business Media LLC, Vol. 62, No. 6 ( 2013-6), p. 1011-1019
    Type of Medium: Online Resource
    ISSN: 0340-7004 , 1432-0851
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2013
    detail.hit.zdb_id: 1458489-X
    detail.hit.zdb_id: 195342-4
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  • 5
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 33, No. 3_suppl ( 2015-01-20), p. TPS499-TPS499
    Abstract: TPS499 Background: PC carries a poor prognosis. F has improved overall survival (OS) compared to G leading to its use as a 1st line treatment for patients (pts) with advanced PC. Similarly, the combination of G and A has demonstrated OS benefit. No data exists for G/A in the 2nd line setting. Many oncologists continue to sequence F treatment followed upon disease progression by G/A for pts with advanced PC with good performance status. N is a chimeric monoclonal IgG1 antibody recognizing an aberrantly glycosylated MUC5AC specific to GI tumors. Its mechanism of action is through ADCC. An IHC based companion diagnostic assay is utilized to select pts whose tumors express the target (approx. 65-70%). A prior study administering N to pts with advanced PC refractory to chemotherapy was well tolerated with disease stabilization and prolongation of OS. Furthermore 2 of 5 pts receiving the combination of G+N following progression on F remain alive at 10 and 12 months respectively. Methods: The primary objective of this phase 2.5 study is to determine if the combination of N and G plus A can improve the OS for pts who have PC over G plus A alone in the post F setting. The trial is a 2-arm randomized 1:1 multi-institution trial of N plus G and A vs. G and A. Eligible pts would be expected to have an estimated 4.5 to 4.8 month median OS with G alone, but this may be enhanced somewhat with the addition of A. The goal is to determine if the use of N along with G and A will result in pts having an increased median OS of 8 months vs. an estimated 5 months without N. Kaplan-Meier curves and a two-tailed log-rank test will be the primary analysis methods. All pts must have tissue positive for the MUC5AC variant (≥20% by IHC). Because N has been established to be safe when given with G alone but not with the combination of G and A, stopping rules for safety will be adhered to for the first 6 pts randomized to G/A plus N. Enrollment to the study has commenced. Correlative studies will utilize both PBMCs and serum for immune monitoring. Frequency, phenotype and function of different immune cells (including CD8+ T cells, CD4+ T cells, Tregs and MDSCs) will be analyzed. Clinical trial information: NCT01834235.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2015
    detail.hit.zdb_id: 2005181-5
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  • 6
    Online Resource
    Online Resource
    American Society of Clinical Oncology (ASCO) ; 2020
    In:  Journal of Clinical Oncology Vol. 38, No. 15_suppl ( 2020-05-20), p. e19355-e19355
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. e19355-e19355
    Abstract: e19355 Background: Immune checkpoint inhibitors (CIs) have been shown to improve overall survival in lung cancer and are FDA approved in multiple settings, both as single agents and in combination with chemotherapy. Immune related adverse events (irAEs) are common and frequently manifest as dermatitis, pneumonitis, colitis, and hepatitis, among others. Managing grade 2 or higher irAEs often requires multiple outpatient visits and sometimes inpatient admissions, which can significantly increase patient morbidity and healthcare cost. There is limited evidence on the safety of restarting CIs after moderate to severe irAE. Identifying high-risk factors for developing severe irAEs again after re-challenge can improve patient care and cost efficiency. Methods: We searched our electronic medical records to identify patients with NSCLC and SCLC treated with one or more PD-1, PD-L1, or CTLA-4 CIs at our institution between 2013 and 2019. We reviewed 452 patients and identified 44 patients who developed irAE requiring treatment discontinuation. Of these 44 patients, 19 were re-challenged with same or different CIs. The primary end point of this study is to assess the rate of grade 2 or higher irAE after CI re-challenge. Secondary endpoints are mortality rate, overall survival, and disease status. Results: Median follow up for the 19 patients who were re-challenged with CI was 15 months. Median duration of CI treatment after re-challenge was 6 months (range 0.5 to 25 months). 7 patients (37%) developed irAEs (grade 2 or above) again (5 pts with same irAE as prior). Multivariate logistic regression analysis revealed that age≥70 and requirement of steroid for initial irAEs were associated with a higher risk of recurrent irAEs. Median overall survival has not yet been reached; 32% of patients have died. No deaths were related to irAE. After re-challenge with CIs, 42% of the patients had partial response or stable disease, and 58% had progression of disease. Conclusions: Our study demonstrated that re-challenge with immunotherapy is feasible in some patients who had treatment held due to irAEs, though recurrent irAEs were common. Caution should be taken when restarting CIs after moderate to severe toxicities, especially in older adults.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2020
    detail.hit.zdb_id: 2005181-5
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  • 7
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 39, No. 15_suppl ( 2021-05-20), p. 9059-9059
    Abstract: 9059 Background: Immune checkpoint inhibitors (ICIs) have demonstrated limited efficacy in patients (pts) with actionable oncogenic drivers. As a result, pts with the prototypic oncogenic drivers (EGFR and ALK) have purposefully been excluded from many NSCLC ICI trials although ICI is commonly used in combination with chemotherapy for these pts. Data from one randomized trial that included pts with known EGFR and ALK alterations did not show a survival benefit with an ICI plus a platinum doublet. We sought to gain further insight into the role of chemotherapy plus ICI in pts with oncogenic driven tumors. Methods: We conducted a retrospective analysis of pts with oncogenic drivers (EGFR, ALK, ROS1, BRAF, MET, RET, HER2 and KRAS) who were treated with chemotherapy (C) or chemotherapy plus ICI (C+ICI) between 2018 and 2019 at the five University of California (UC) NCI Designated Cancer Centers (UC Irvine, UC Davis, UC Los Angeles, UC San Diego and UC San Francisco). Descriptive statistics were used. Kaplan-Meier plots and confidence intervals summarize PFS and OS in the overall cohort and oncogenic subgroups. Results: 125 pts were identified. Median age 64.1 years; M/F (45%/55%); White/Asian (59%/33%); Current/Former/Never Smokers (4%/39%/57%); PS 0/1/2(22%/68%/10%); prior number of tyrosine kinase inhibitors 0/1/2/ 〉 3 (46%/23%/19%/11%); Oncogenic driver: EGFR mutations (60%), KRAS mutations (23%), ALK fusions (8%), MET mutations (2.4%), RET fusions (1.6%), ROS1 fusions (1.6%), HER2 mutations (1.6%), and BRAF mutations (0.8%). The table below displays the efficacy outcomes. Conclusions: There was no survival benefit for pts with oncogenic drivers treated with chemotherapy plus an immune checkpoint inhibitor in the overall cohort or any of the subsets. Pts with KRAS mutations treated with C+ICI had a numerically longer median PFS than their counterparts treated with C. Updated data and additional analyses including PD-L1, TMB, co-mutations and toxicity will be presented.[Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2021
    detail.hit.zdb_id: 2005181-5
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  • 8
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. 5517-5517
    Abstract: 5517 Background: Dual checkpoint inhibition with Anti-PD-1 and anti-CTLA4 checkpoint inhibitors have proven to be effective in several malignancies but their potential role in various rare solid cancers is yet to be established. The efficacy of immunotherapy in vulvar cancer patients has not been explored. This study presents the first results of ipilimumab and nivolumab in vulvar cancers (cohort 35) of the SWOG S1609 Dual Anti-CTLA-4 & Anti-PD-1 blockade in Rare Tumors (DART) trial. Methods: DART is a prospective, open-label, multicenter/multi-cohort phase 2 clinical trial of ipilimumab (1mg/kg intravenously every 6 weeks) plus nivolumab (240mg intravenously every 2 weeks). The primary endpoint was objective response rate (ORR) (RECIST v1.1) (confirmed complete (CR) and partial responses (PR)); progression-free survival (PFS), overall survival (OS), stable disease (SD) 〉 6 months, and toxicity are secondary endpoints. Results: Sixteen evaluable patients (median age, 55.5 years) were analyzed. 14 cases were of squamous cell carcinoma histology and 2 were of poorly differentiated carcinoma. ORR was 18.8% (3/16, 25% when including one unconfirmed PR). There was 1 CR (SCC; PFS of 465 days) and 2 PR (both SCC; one with 57% regression with PFS of 1022 days, another with 53% regression with PFS of 501 days). Of note, there was one SCC patient with unconfirmed PR that showed 69% regression with PFS of 209 days. Overall clinical benefit rate (CBR; no progression 〉 6months) was 31.3% (5/16). The median PFS was 2.2 months, 6-month PFS 33%, 1-year PFS 20%. The median OS was 7.6 months, 6-month OS 62%, 1-year OS 44%. The most common adverse events were diarrhea, fatigue, pruritus, anorexia, and nausea (25%, n = 4 each). Grade 3-4 adverse events occurred in 25% of patients (n = 4). There was 1 grade 3-4 adverse event (6.7%) that led to discontinuation, and 1 (6.7%) grade 5 death adverse event. Conclusions: Ipilimumab plus nivolumab in vulvar cancers resulted in an ORR of 18.8% and CBR of 31.3%, with durable responses seen. Correlative studies to determine response and resistance markers are ongoing. Expanded prospective studies exploring the role of immunotherapy in vulvar cancers are warranted. Clinical trial information: NCT02834013 .
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2023
    detail.hit.zdb_id: 2005181-5
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  • 9
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 40, No. 16_suppl ( 2022-06-01), p. TPS2676-TPS2676
    Abstract: TPS2676 Background: Solid tumors comprise 〉 90% of cancers. Metastatic colorectal cancer, non-small cell lung cancer, and pancreatic cancer are among the leading causes of cancer-related mortality (5-year overall survival: 14%, 6%, and 3%, respectively) (ACS. 2021). Chimeric antigen receptor (CAR) T-cell therapy has demonstrated clinical efficacy in hematologic malignancies (Neelapu S. et al. N Engl J Med. 2017). Translating engineered T-cell therapies to solid tumors has proven to be challenging due to a lack of tumor-specific targets that can discriminate cancer cells from normal cells. Previous studies using carcinoembryonic antigen (CEA) T-cell receptors and mesothelin (MSLN) CARs resulted in dose-limiting on-target, off-tumor toxicities (Parkhurst M, et al. Mol Ther. 2011; Tanyi J. Cellicon Valley '21). To create a therapeutic safety window, Tmod CAR T-cell therapy utilizes dual-signaling receptors to create a robust NOT logic gate capable of killing tumor cells, while leaving healthy cells intact (Hamburger A, et al. Mol Immunol. 2020). The 2 receptors in Tmod CAR T-cell therapy comprise an activator that recognizes an antigen on the surface of tumor cells that may also be present on normal cells, such as CEA and MSLN, and a blocker that recognizes a second surface antigen from an allele lost only in tumor cells. The frequency of HLA LOH among advanced GI solid tumor cancers in the Tempus real-world dataset is 16.3% with a range of 15.6%-20.8% between colorectal, pancreatic, and gastroesophageal tumors (Hecht R. et al. ASCO-GI 2022. Abstract #190). As such, HLA LOH offers a definitive tumor versus normal discriminator target for CAR T-cell therapy. Different activator/blocker combinations can be engineered with the Tmod platform technology and may be applied to T cells and natural killer cells in autologous and allogeneic settings. BASECAMP-1 is a currently enrolling observational study with key objectives of 1) To identify patients with somatic HLA LOH eligible for Tmod CAR T-cell therapy, and 2) To obtain leukapheresis and feasibility for the future EVEREST Tmod CAR T-cell trial. Methods: BASECAMP-1 (NCT04981119) patient eligibility has 2 parts: 1) Patients will be initially screened to identify germline HLA-A*02 heterozygosity by central NGS. If HLA-A*02 heterozygosity is confirmed, primary archival tumor tissue will be analyzed for somatic mutations by xT-Onco NGS testing. 2) If the tumor demonstrates HLA-A*02 LOH and the patient is eligible after screening, the patient will undergo leukapheresis. Banked T cells will be available for the autologous EVEREST Tmod CAR T-cell therapy interventional study to reduce waiting time at relapse. Clinical trial information: NCT04981119.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2022
    detail.hit.zdb_id: 2005181-5
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  • 10
    Online Resource
    Online Resource
    American Society of Clinical Oncology (ASCO) ; 2016
    In:  Journal of Clinical Oncology Vol. 34, No. 15_suppl ( 2016-05-20), p. e23042-e23042
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 34, No. 15_suppl ( 2016-05-20), p. e23042-e23042
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2016
    detail.hit.zdb_id: 2005181-5
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