Pub Date : 2025-01-10Epub Date: 2024-08-19DOI: 10.1016/j.medj.2024.07.025
Huangxuan Zhao, Ziyang Xu, Lei Chen, Linxia Wu, Ziwei Cui, Jinqiang Ma, Tao Sun, Yu Lei, Nan Wang, Hongyao Hu, Yiqing Tan, Wei Lu, Wenzhong Yang, Kaibing Liao, Gaojun Teng, Xiaoyun Liang, Yi Li, Congcong Feng, Tong Nie, Xiaoyu Han, Dongqiao Xiang, Charles B L M Majoie, Wim H van Zwam, Aad van der Lugt, P Matthijs van der Sluijs, Theo van Walsum, Yun Feng, Guoli Liu, Yan Huang, Wenyu Liu, Xuefeng Kan, Ruisheng Su, Weihua Zhang, Xinggang Wang, Chuansheng Zheng
Background: Digital subtraction angiography (DSA) devices are commonly used in numerous interventional procedures across various parts of the body, necessitating multiple scans per procedure, which results in significant radiation exposure for both doctors and patients. Inspired by generative artificial intelligence techniques, this study proposes GenDSA, a large-scale pretrained multi-frame generative model-based real-time and low-dose DSA imaging system.
Methods: GenDSA was developed to generate 1-, 2-, and 3-frame sequences following each real frame. A large-scale dataset comprising ∼3 million DSA images from 27,117 patients across 10 hospitals was constructed to pretrain, fine-tune, and validate GenDSA. Two other datasets from 25 hospitals were used for evaluation. Objective evaluations included SSIM and PSNR. Five interventional radiologists independently assessed the quality of the generated frames using the Likert scale and visual Turing test. Scoring consistency among the radiologists was measured using the Kendall coefficient of concordance (W). The Fleiss' kappa values were used for inter-rater agreement analysis for visual Turing tests.
Findings: Using only one-third of the clinical radiation dose, videos generated by GenDSA were perfectly consistent with real videos. Objective evaluations demonstrated that GenDSA's performance (PSNR = 36.83, SSIM = 0.911, generation time = 0.07 s/frame) surpassed state-of-the-art algorithms. Subjective ratings and statistical results from five doctors indicated no significant difference between real and generated videos. Furthermore, the generated videos were comparable to real videos in overall quality (4.905 vs. 4.935) and lesion assessment (4.825 vs. 4.860).
Conclusions: With clear clinical and translational values, the developed GenDSA can significantly reduce radiation damage to both doctors and patients during DSA-guided procedures.
Funding: This study was supported by the National Key R&D Program and the National Natural Science Foundation of China.
{"title":"Large-scale pretrained frame generative model enables real-time low-dose DSA imaging: An AI system development and multi-center validation study.","authors":"Huangxuan Zhao, Ziyang Xu, Lei Chen, Linxia Wu, Ziwei Cui, Jinqiang Ma, Tao Sun, Yu Lei, Nan Wang, Hongyao Hu, Yiqing Tan, Wei Lu, Wenzhong Yang, Kaibing Liao, Gaojun Teng, Xiaoyun Liang, Yi Li, Congcong Feng, Tong Nie, Xiaoyu Han, Dongqiao Xiang, Charles B L M Majoie, Wim H van Zwam, Aad van der Lugt, P Matthijs van der Sluijs, Theo van Walsum, Yun Feng, Guoli Liu, Yan Huang, Wenyu Liu, Xuefeng Kan, Ruisheng Su, Weihua Zhang, Xinggang Wang, Chuansheng Zheng","doi":"10.1016/j.medj.2024.07.025","DOIUrl":"10.1016/j.medj.2024.07.025","url":null,"abstract":"<p><strong>Background: </strong>Digital subtraction angiography (DSA) devices are commonly used in numerous interventional procedures across various parts of the body, necessitating multiple scans per procedure, which results in significant radiation exposure for both doctors and patients. Inspired by generative artificial intelligence techniques, this study proposes GenDSA, a large-scale pretrained multi-frame generative model-based real-time and low-dose DSA imaging system.</p><p><strong>Methods: </strong>GenDSA was developed to generate 1-, 2-, and 3-frame sequences following each real frame. A large-scale dataset comprising ∼3 million DSA images from 27,117 patients across 10 hospitals was constructed to pretrain, fine-tune, and validate GenDSA. Two other datasets from 25 hospitals were used for evaluation. Objective evaluations included SSIM and PSNR. Five interventional radiologists independently assessed the quality of the generated frames using the Likert scale and visual Turing test. Scoring consistency among the radiologists was measured using the Kendall coefficient of concordance (W). The Fleiss' kappa values were used for inter-rater agreement analysis for visual Turing tests.</p><p><strong>Findings: </strong>Using only one-third of the clinical radiation dose, videos generated by GenDSA were perfectly consistent with real videos. Objective evaluations demonstrated that GenDSA's performance (PSNR = 36.83, SSIM = 0.911, generation time = 0.07 s/frame) surpassed state-of-the-art algorithms. Subjective ratings and statistical results from five doctors indicated no significant difference between real and generated videos. Furthermore, the generated videos were comparable to real videos in overall quality (4.905 vs. 4.935) and lesion assessment (4.825 vs. 4.860).</p><p><strong>Conclusions: </strong>With clear clinical and translational values, the developed GenDSA can significantly reduce radiation damage to both doctors and patients during DSA-guided procedures.</p><p><strong>Funding: </strong>This study was supported by the National Key R&D Program and the National Natural Science Foundation of China.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":" ","pages":"100497"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142009593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-10DOI: 10.1016/j.medj.2024.11.017
Lisa Willcocks
The ALIGN trial1 demonstrates that atrasentan, an endothelin A (ETA) receptor antagonist, reduces proteinuria in patients with IgA nephropathy (IgAN), a key goal to slow progressive renal disease. These results are consistent with those from sparsentan,2,3 a combined ETA and angiotensin inhibitor, in IgAN, suggesting two-year data will show atrasentan improves renal outcomes.
{"title":"ALIGNing the treatment of IgA nephropathy: Reducing proteinuria with endothelin A receptor inhibition.","authors":"Lisa Willcocks","doi":"10.1016/j.medj.2024.11.017","DOIUrl":"https://doi.org/10.1016/j.medj.2024.11.017","url":null,"abstract":"<p><p>The ALIGN trial<sup>1</sup> demonstrates that atrasentan, an endothelin A (ETA) receptor antagonist, reduces proteinuria in patients with IgA nephropathy (IgAN), a key goal to slow progressive renal disease. These results are consistent with those from sparsentan,<sup>2</sup><sup>,</sup><sup>3</sup> a combined ETA and angiotensin inhibitor, in IgAN, suggesting two-year data will show atrasentan improves renal outcomes.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":"6 1","pages":"100564"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142972397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-10DOI: 10.1016/j.medj.2024.11.016
Jad Chahoud, Pavlos Msaouel
LITESPARK-005 evaluated belzutifan against everolimus in advanced renal cell carcinoma (RCC),1 demonstrating significant progression-free survival improvement but failing to meet the overall survival (OS) co-primary endpoint. Despite FDA approval, the trial highlights key obstacles in drug development in RCC, given the absence of OS improvement, lack of biomarker studies, high financial toxicity, and limited accessibility outside the United States.
{"title":"Belzutifan for renal cell carcinoma: Balancing regulatory approval with societal and patient impact.","authors":"Jad Chahoud, Pavlos Msaouel","doi":"10.1016/j.medj.2024.11.016","DOIUrl":"https://doi.org/10.1016/j.medj.2024.11.016","url":null,"abstract":"<p><p>LITESPARK-005 evaluated belzutifan against everolimus in advanced renal cell carcinoma (RCC),<sup>1</sup> demonstrating significant progression-free survival improvement but failing to meet the overall survival (OS) co-primary endpoint. Despite FDA approval, the trial highlights key obstacles in drug development in RCC, given the absence of OS improvement, lack of biomarker studies, high financial toxicity, and limited accessibility outside the United States.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":"6 1","pages":"100563"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142972398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-10Epub Date: 2024-08-19DOI: 10.1016/j.medj.2024.07.024
Jieli Lu, Ruixin Liu, Huahui Ren, Shuangyuan Wang, Chunyan Hu, Zhun Shi, Mian Li, Wei Liu, Qin Wan, Qing Su, Qifu Li, Hongting Zheng, Shen Qu, Fangming Yang, Hongyi Ji, Hong Lin, Hongyan Qi, Xueyan Wu, Kui Wu, Yuhong Chen, Yu Xu, Min Xu, Tiange Wang, Jie Zheng, Guang Ning, Ruizhi Zheng, Yufang Bi, Huanzi Zhong, Weiqing Wang
Background: Fish oil (FO), a mixture of omega-3 fatty acids mainly comprising docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), has been recommended for patients with type 2 diabetes (T2D) and hypertriglyceridemia. However, its effects on lipidomic profiles and gut microbiota and the factors influencing triglyceride (TG) reduction remain unclear.
Methods: We conducted a 12-week, randomized, double-blind, placebo-controlled trial in 309 Chinese patients with T2D with hypertriglyceridemia (ClinicalTrials.gov: NCT03120299). Participants were randomly assigned (1:1) to receive either 4 g FO or corn oil for 12 weeks. The primary outcome was changes in serum TGs and the lipidomic profile, and the secondary outcome included changes in the gut microbiome and other metabolic variables.
Findings: The FO group had significantly better TG reduction (mean [95% confidence interval (CI)]: -1.51 [-2.01, -1.01] mmol/L) compared to the corn oil group (-0.66 [-1.15, -0.16] mmol/L, p = 0.02). FO significantly altered the serum lipid profile by reducing low-unsaturated TG species and increasing those containing DHA or EPA. FO had minor effects on gut microbiota, while baseline microbial features predicted the TG response to FO better than phenotypic or lipidomic features, potentially mediated by specific lipid metabolites. A total of 9 lipid metabolites significantly mediated the link between 4 baseline microbial variables and the TG response to FO supplementation.
Conclusions: Our findings demonstrate differential impacts of omega-3 fatty acids on lipidomic and microbial profiles in T2D and highlight the importance of baseline gut microbiota characteristics in predicting the TG-lowering efficacy of FO.
Funding: This study was funded by the National Nature Science Foundation.
{"title":"Impact of omega-3 fatty acids on hypertriglyceridemia, lipidomics, and gut microbiome in patients with type 2 diabetes.","authors":"Jieli Lu, Ruixin Liu, Huahui Ren, Shuangyuan Wang, Chunyan Hu, Zhun Shi, Mian Li, Wei Liu, Qin Wan, Qing Su, Qifu Li, Hongting Zheng, Shen Qu, Fangming Yang, Hongyi Ji, Hong Lin, Hongyan Qi, Xueyan Wu, Kui Wu, Yuhong Chen, Yu Xu, Min Xu, Tiange Wang, Jie Zheng, Guang Ning, Ruizhi Zheng, Yufang Bi, Huanzi Zhong, Weiqing Wang","doi":"10.1016/j.medj.2024.07.024","DOIUrl":"10.1016/j.medj.2024.07.024","url":null,"abstract":"<p><strong>Background: </strong>Fish oil (FO), a mixture of omega-3 fatty acids mainly comprising docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), has been recommended for patients with type 2 diabetes (T2D) and hypertriglyceridemia. However, its effects on lipidomic profiles and gut microbiota and the factors influencing triglyceride (TG) reduction remain unclear.</p><p><strong>Methods: </strong>We conducted a 12-week, randomized, double-blind, placebo-controlled trial in 309 Chinese patients with T2D with hypertriglyceridemia (ClinicalTrials.gov: NCT03120299). Participants were randomly assigned (1:1) to receive either 4 g FO or corn oil for 12 weeks. The primary outcome was changes in serum TGs and the lipidomic profile, and the secondary outcome included changes in the gut microbiome and other metabolic variables.</p><p><strong>Findings: </strong>The FO group had significantly better TG reduction (mean [95% confidence interval (CI)]: -1.51 [-2.01, -1.01] mmol/L) compared to the corn oil group (-0.66 [-1.15, -0.16] mmol/L, p = 0.02). FO significantly altered the serum lipid profile by reducing low-unsaturated TG species and increasing those containing DHA or EPA. FO had minor effects on gut microbiota, while baseline microbial features predicted the TG response to FO better than phenotypic or lipidomic features, potentially mediated by specific lipid metabolites. A total of 9 lipid metabolites significantly mediated the link between 4 baseline microbial variables and the TG response to FO supplementation.</p><p><strong>Conclusions: </strong>Our findings demonstrate differential impacts of omega-3 fatty acids on lipidomic and microbial profiles in T2D and highlight the importance of baseline gut microbiota characteristics in predicting the TG-lowering efficacy of FO.</p><p><strong>Funding: </strong>This study was funded by the National Nature Science Foundation.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":" ","pages":"100496"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142009592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Zorifertinib (AZD3759), an epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) with high blood-brain barrier penetration capability, demonstrated promising intracranial and systemic antitumor activity in phase 1 and 2 studies in central nervous system (CNS)-metastatic patients.
Methods: In this phase 3 EVEREST trial (ClinicalTrials.gov: NCT03653546), patients with EGFR-sensitizing mutations, advanced treatment-naive non-small cell lung cancer (NSCLC), and non-irradiated symptomatic or asymptomatic CNS metastases were randomized (1:1) to zorifertinib or first-generation EGFR-TKI (gefitinib or erlotinib; control). The primary endpoint was blinded independent central review (BICR)-assessed progression-free survival (PFS) per RECIST1.1.
Findings: Overall, 439 patients were randomized (zorifertinib n = 220; control n = 219). Most patients had the EGFR L858R mutation (55%) or >3 CNS lesions (54%). Median PFS was significantly longer with zorifertinib versus control (9.6 versus 6.9 months; hazard ratio [HR], 0.719; 95% confidence interval [CI], 0.580-0.893; p = 0.0024). Zorifertinib significantly prolonged intracranial PFS versus control (BICR per modified RECIST1.1: HR, 0.467; 95% CI, 0.352-0.619; investigator per RANO-BM: HR, 0.627; 95% CI, 0.466-0.844). Overall survival (OS) was immature; the estimated median OS was 37.3 months with zorifertinib and 31.8 months with control (HR, 0.833; 95% CI, 0.524-1.283) in patients subsequently treated with third-generation EGFR-TKIs. Safety profiles were consistent with previously reported data for zorifertinib.
Conclusions: Zorifertinib significantly improved systemic and intracranial PFS versus first-generation EGFR-TKIs; adverse events were manageable. Sequential use of zorifertinib and third-generation EGFR-TKIs showed the potential to prolong patients' survival. The results favor zorifertinib as a novel, well-validated first-line option for CNS-metastatic patients with EGFR-mutant NSCLC.
Funding: This work was funded by Alpha Biopharma (Jiangsu) Co., Ltd., China.
{"title":"First-line zorifertinib for EGFR-mutant non-small cell lung cancer with central nervous system metastases: The phase 3 EVEREST trial.","authors":"Qing Zhou, Yan Yu, Ligang Xing, Ying Cheng, Ying Wang, Yueyin Pan, Yun Fan, Jianhua Shi, Guojun Zhang, Jiuwei Cui, Jianying Zhou, Yong Song, Wu Zhuang, Zhiyong Ma, Yanping Hu, Gaofeng Li, Xiaorong Dong, Jifeng Feng, Shun Lu, Jingxun Wu, Juan Li, Longzhen Zhang, Dong Wang, Xinhua Xu, Tsung-Ying Yang, Nong Yang, Yubiao Guo, Jun Zhao, Yu Yao, Diansheng Zhong, Bing Xia, Cheng-Ta Yang, Bo Zhu, Ping Sun, Byoung Yong Shim, Yuan Chen, Zhen Wang, Myung-Ju Ahn, Jie Wang, Yi-Long Wu","doi":"10.1016/j.medj.2024.09.002","DOIUrl":"10.1016/j.medj.2024.09.002","url":null,"abstract":"<p><strong>Background: </strong>Zorifertinib (AZD3759), an epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) with high blood-brain barrier penetration capability, demonstrated promising intracranial and systemic antitumor activity in phase 1 and 2 studies in central nervous system (CNS)-metastatic patients.</p><p><strong>Methods: </strong>In this phase 3 EVEREST trial (ClinicalTrials.gov: NCT03653546), patients with EGFR-sensitizing mutations, advanced treatment-naive non-small cell lung cancer (NSCLC), and non-irradiated symptomatic or asymptomatic CNS metastases were randomized (1:1) to zorifertinib or first-generation EGFR-TKI (gefitinib or erlotinib; control). The primary endpoint was blinded independent central review (BICR)-assessed progression-free survival (PFS) per RECIST1.1.</p><p><strong>Findings: </strong>Overall, 439 patients were randomized (zorifertinib n = 220; control n = 219). Most patients had the EGFR L858R mutation (55%) or >3 CNS lesions (54%). Median PFS was significantly longer with zorifertinib versus control (9.6 versus 6.9 months; hazard ratio [HR], 0.719; 95% confidence interval [CI], 0.580-0.893; p = 0.0024). Zorifertinib significantly prolonged intracranial PFS versus control (BICR per modified RECIST1.1: HR, 0.467; 95% CI, 0.352-0.619; investigator per RANO-BM: HR, 0.627; 95% CI, 0.466-0.844). Overall survival (OS) was immature; the estimated median OS was 37.3 months with zorifertinib and 31.8 months with control (HR, 0.833; 95% CI, 0.524-1.283) in patients subsequently treated with third-generation EGFR-TKIs. Safety profiles were consistent with previously reported data for zorifertinib.</p><p><strong>Conclusions: </strong>Zorifertinib significantly improved systemic and intracranial PFS versus first-generation EGFR-TKIs; adverse events were manageable. Sequential use of zorifertinib and third-generation EGFR-TKIs showed the potential to prolong patients' survival. The results favor zorifertinib as a novel, well-validated first-line option for CNS-metastatic patients with EGFR-mutant NSCLC.</p><p><strong>Funding: </strong>This work was funded by Alpha Biopharma (Jiangsu) Co., Ltd., China.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":" ","pages":"100513"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142401504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-10DOI: 10.1016/j.medj.2024.10.002
Meaghan Roy-O'Reilly, David Rogawski
The phase III EVEREST trial evaluating zorifertinib in the treatment of metastatic EGFR-mutant NSCLC was groundbreaking in its specific inclusion of patients with brain metastases.1 Zorifertinib prolonged systemic and intracranial progression-free survival compared with first-generation EGFR inhibitors, yet questions remain about its efficacy and toxicity compared with osimertinib.
{"title":"The climb toward intracranial efficacy: Zorifertinib in EGFR-mutant NSCLC with CNS metastases in the EVEREST trial.","authors":"Meaghan Roy-O'Reilly, David Rogawski","doi":"10.1016/j.medj.2024.10.002","DOIUrl":"https://doi.org/10.1016/j.medj.2024.10.002","url":null,"abstract":"<p><p>The phase III EVEREST trial evaluating zorifertinib in the treatment of metastatic EGFR-mutant NSCLC was groundbreaking in its specific inclusion of patients with brain metastases.<sup>1</sup> Zorifertinib prolonged systemic and intracranial progression-free survival compared with first-generation EGFR inhibitors, yet questions remain about its efficacy and toxicity compared with osimertinib.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":"6 1","pages":"100525"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143056130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-10Epub Date: 2024-08-16DOI: 10.1016/j.medj.2024.07.023
Yonika A Larasati, Moritz Thiel, Alexey Koval, Denis N Silachev, Anne Koy, Vladimir L Katanaev
Background: De novo pathogenic variants in GNAO1-the gene encoding the major neuronal G protein Gαo-cause pediatric encephalopathies and other neurological deficiencies largely refractory to available therapies. Zn2+ emerged to restore guanosine triphosphate hydrolysis and cellular interactions of pathogenic Gαo; dietary zinc salt supplementation improves lifespan and motoric function in a Drosophila disease model.
Methods: Using biochemical, animal, and first-in-human studies, we provide support for the patient stratification and application of zinc acetate in GNAO1-associated disorders.
Findings: We show that 16 different pathogenic missense variants cluster in three distinct groups in their responsiveness to Zn2+, and we provide the safety study in a mouse disease model. We further describe treatment of a 3-year-old patient with the common pathogenic GNAO1 variant c607G>A, p.Gly203Arg with oral 50 mg zinc (in the form of zinc acetate) daily, as applied in Wilson's disease. During 11 months of treatment, the patient shows cessation of daily dyskinetic crises, improved Burke-Fahn Marsden Dystonia Rating Scale movement score, reduction in epileptic seizures, and an excellent safety profile.
Conclusions: Our findings warrant a large-scale clinical trial and might set the new standard of care for GNAO1-related disorders.
Funding: This work was funded by the Russian Science Foundation (grant #21-15-00138) and GNAO1 España.
{"title":"Zinc for GNAO1 encephalopathy: Preclinical profiling and a clinical case.","authors":"Yonika A Larasati, Moritz Thiel, Alexey Koval, Denis N Silachev, Anne Koy, Vladimir L Katanaev","doi":"10.1016/j.medj.2024.07.023","DOIUrl":"10.1016/j.medj.2024.07.023","url":null,"abstract":"<p><strong>Background: </strong>De novo pathogenic variants in GNAO1-the gene encoding the major neuronal G protein Gαo-cause pediatric encephalopathies and other neurological deficiencies largely refractory to available therapies. Zn<sup>2+</sup> emerged to restore guanosine triphosphate hydrolysis and cellular interactions of pathogenic Gαo; dietary zinc salt supplementation improves lifespan and motoric function in a Drosophila disease model.</p><p><strong>Methods: </strong>Using biochemical, animal, and first-in-human studies, we provide support for the patient stratification and application of zinc acetate in GNAO1-associated disorders.</p><p><strong>Findings: </strong>We show that 16 different pathogenic missense variants cluster in three distinct groups in their responsiveness to Zn<sup>2+</sup>, and we provide the safety study in a mouse disease model. We further describe treatment of a 3-year-old patient with the common pathogenic GNAO1 variant c607G>A, p.Gly203Arg with oral 50 mg zinc (in the form of zinc acetate) daily, as applied in Wilson's disease. During 11 months of treatment, the patient shows cessation of daily dyskinetic crises, improved Burke-Fahn Marsden Dystonia Rating Scale movement score, reduction in epileptic seizures, and an excellent safety profile.</p><p><strong>Conclusions: </strong>Our findings warrant a large-scale clinical trial and might set the new standard of care for GNAO1-related disorders.</p><p><strong>Funding: </strong>This work was funded by the Russian Science Foundation (grant #21-15-00138) and GNAO1 España.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":" ","pages":"100495"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141996590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-10Epub Date: 2024-09-20DOI: 10.1016/j.medj.2024.08.003
Qiaoyan Liu, Bingyuan Huang, Yijun Zhou, Yiran Wei, Yikang Li, Bo Li, You Li, Jun Zhang, Qiwei Qian, Ruiling Chen, Zhuwan Lyu, Rui Wang, Qin Cao, Qun Xu, Qixia Wang, Qi Miao, Zhengrui You, Min Lian, Merrill Eric Gershwin, Qiaofei Jin, Xiao Xiao, Xiong Ma, Ruqi Tang
Background: Primary biliary cholangitis (PBC) is a progressive autoimmune liver disease. An inadequate response to ursodeoxycholic acid (UDCA) poses a high risk of progression toward end-stage liver disease. Gut dysbiosis has been implicated in PBC. Here, we aimed to investigate microbial signatures that permit risk stratification and provide mechanistic insights into novel therapies for PBC.
Methods: We prospectively recruited UDCA treatment-naive patients with PBC and performed metagenomic sequencing and metabolomic profiling using stool and serum samples obtained before (n = 132) and after (n = 59) treatment. PBC microbiome subtypes were identified using unsupervised machine learning methods and validated in two independent cohorts.
Findings: PBC baseline metagenomes clustered into two community subtypes characterized by varying abundances of Clostridia taxa. Compared with Clostridialow microbiomes, Clostridiahigh microbiomes were more similar to healthy controls. Notably, patients in the Clostridialow subtype exhibited a 2-fold higher UDCA non-response rate compared to those in the Clostridiahigh subtype (41% vs. 20%, p = 0.015). Integrative analysis of metagenomic and metabolomic data revealed divergent functional modules and metabolic activities between the two metacommunities. In particular, anaerobic fermentation and the production of bioactive metabolites, including tryptophan derivatives and secondary bile acids, crucial for immune regulation and gut barrier maintenance, were markedly diminished in the Clostridialow subtype. Moreover, UDCA administration reconfigured the fecal microbial and metabolic profiles only in the Clostridiahigh group. Importantly, the microbiome subtypes and their associations with UDCA response were reproducible in two independent treatment-naive PBC cohorts.
Conclusions: Characterizing baseline microbiota patterns may enable the prediction of treatment outcomes in PBC and facilitate personalized treatment strategies.
Funding: This research was mainly supported by the National Natural Science Foundation of China.
{"title":"Gut microbiome pattern impacts treatment response in primary biliary cholangitis.","authors":"Qiaoyan Liu, Bingyuan Huang, Yijun Zhou, Yiran Wei, Yikang Li, Bo Li, You Li, Jun Zhang, Qiwei Qian, Ruiling Chen, Zhuwan Lyu, Rui Wang, Qin Cao, Qun Xu, Qixia Wang, Qi Miao, Zhengrui You, Min Lian, Merrill Eric Gershwin, Qiaofei Jin, Xiao Xiao, Xiong Ma, Ruqi Tang","doi":"10.1016/j.medj.2024.08.003","DOIUrl":"10.1016/j.medj.2024.08.003","url":null,"abstract":"<p><strong>Background: </strong>Primary biliary cholangitis (PBC) is a progressive autoimmune liver disease. An inadequate response to ursodeoxycholic acid (UDCA) poses a high risk of progression toward end-stage liver disease. Gut dysbiosis has been implicated in PBC. Here, we aimed to investigate microbial signatures that permit risk stratification and provide mechanistic insights into novel therapies for PBC.</p><p><strong>Methods: </strong>We prospectively recruited UDCA treatment-naive patients with PBC and performed metagenomic sequencing and metabolomic profiling using stool and serum samples obtained before (n = 132) and after (n = 59) treatment. PBC microbiome subtypes were identified using unsupervised machine learning methods and validated in two independent cohorts.</p><p><strong>Findings: </strong>PBC baseline metagenomes clustered into two community subtypes characterized by varying abundances of Clostridia taxa. Compared with Clostridia<sup>low</sup> microbiomes, Clostridia<sup>high</sup> microbiomes were more similar to healthy controls. Notably, patients in the Clostridia<sup>low</sup> subtype exhibited a 2-fold higher UDCA non-response rate compared to those in the Clostridia<sup>high</sup> subtype (41% vs. 20%, p = 0.015). Integrative analysis of metagenomic and metabolomic data revealed divergent functional modules and metabolic activities between the two metacommunities. In particular, anaerobic fermentation and the production of bioactive metabolites, including tryptophan derivatives and secondary bile acids, crucial for immune regulation and gut barrier maintenance, were markedly diminished in the Clostridia<sup>low</sup> subtype. Moreover, UDCA administration reconfigured the fecal microbial and metabolic profiles only in the Clostridia<sup>high</sup> group. Importantly, the microbiome subtypes and their associations with UDCA response were reproducible in two independent treatment-naive PBC cohorts.</p><p><strong>Conclusions: </strong>Characterizing baseline microbiota patterns may enable the prediction of treatment outcomes in PBC and facilitate personalized treatment strategies.</p><p><strong>Funding: </strong>This research was mainly supported by the National Natural Science Foundation of China.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":" ","pages":"100504"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142297064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-10DOI: 10.1016/j.medj.2024.12.001
Lin Shen
Professor Lin Shen, MD, graduated from Xuzhou Medical College in 1984 and Beijing Medical University in 1995. She trained at the US National Institutes of Health in 2000, focusing on therapies for gastrointestinal tumors. Currently, she is director of the Department of Gastrointestinal Oncology and Department of Early Drug Development Center, Peking University Cancer Hospital. Specializing in gastrointestinal oncology, she focuses on gastric, esophageal, colorectal, pancreatic, and gastrointestinal neuroendocrine cancers. She has led and participated in various national and international drug trials and steering committees.
{"title":"Q&A with Lin Shen.","authors":"Lin Shen","doi":"10.1016/j.medj.2024.12.001","DOIUrl":"https://doi.org/10.1016/j.medj.2024.12.001","url":null,"abstract":"<p><p>Professor Lin Shen, MD, graduated from Xuzhou Medical College in 1984 and Beijing Medical University in 1995. She trained at the US National Institutes of Health in 2000, focusing on therapies for gastrointestinal tumors. Currently, she is director of the Department of Gastrointestinal Oncology and Department of Early Drug Development Center, Peking University Cancer Hospital. Specializing in gastrointestinal oncology, she focuses on gastric, esophageal, colorectal, pancreatic, and gastrointestinal neuroendocrine cancers. She has led and participated in various national and international drug trials and steering committees.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":"6 1","pages":"100567"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142972402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-10Epub Date: 2024-08-15DOI: 10.1016/j.medj.2024.07.022
Jeffrey A How, Minghao Dang, Sanghoon Lee, Bryan Fellman, Shannon N Westin, Anil K Sood, Nicole D Fleming, Aaron Shafer, Ying Yuan, Jinsong Liu, Li Zhao, Joseph Celestino, Richard Hajek, Margaret B Morgan, Edwin R Parra, Caddie D Laberiano Fernandez, Claudio A Arrechedera, Luisa Maren Solis Soto, Kathleen M Schmeler, Alpa Nick, Karen H Lu, Robert Coleman, Linghua Wang, Amir A Jazaeri
Background: The efficacy and feasibility of pembrolizumab combined with chemotherapy in frontline management of advanced high-grade epithelial ovarian cancer (EOC) is unknown. Additionally, modification of the tumor microenvironment following neoadjuvant therapy is not well understood.
Methods: In this single-arm phase 2 trial (this study was registered at ClinicalTrials.gov: NCT02520154), eligible patients received up to 4 cycles of neoadjuvant chemotherapy followed by interval cytoreduction, 3 cycles of adjuvant intravenous carboplatin/weekly paclitaxel/pembrolizumab, and finally maintenance pembrolizumab until progression or toxicity (maximum 20 cycles). The primary endpoint was progression-free survival (PFS). Secondary endpoints included feasibility, toxicity, and overall survival (OS). PD-L1 staining, multiplex immunofluorescence staining, RNA sequencing, reverse-phase protein array analyses were performed on pre- and post-chemotherapy samples.
Findings: Thirty-one eligible patients were enrolled. Median PFS and OS was 14.88 (95% CI 12.39-23.00) and 57.43 months (95% CI 30.88-not reached), respectively. Among those with PD-L1 combined positive score (CPS) ≥10, the median PFS and OS were not reached compared to those with CPS <10 (10.50 and 30.90 months, respectively). Feasibility was met, with all patients completing their planned adjuvant cycles. Treatment discontinuation due to immune-related toxicity occurred in 6 patients (20%). Chemotherapy resulted in an infiltration of anti-tumor immune cells in the tumor microenvironment. Samples of patients with the best PFS demonstrated increased expression of NF-κB, TGF-β, and β-catenin signaling.
Conclusions: Pembrolizumab with chemotherapy was feasible and resulted in PFS within the historical range for this EOC population. Patients with CPS ≥10 may benefit more from this regimen, and future studies should investigate this potential biomarker.
Funding: This investigator-initiated trial was funded by Merck.
背景:pembrolizumab联合化疗在晚期高级别上皮性卵巢癌(EOC)一线治疗中的疗效和可行性尚不清楚。此外,对新辅助治疗后肿瘤微环境的改变也不甚了解:在这项单臂2期试验中(该研究已在ClinicalTrials.gov上注册:NCT02520154),符合条件的患者接受最多4个周期的新辅助化疗,然后进行间歇性细胞减灭术、3个周期的辅助静脉注射卡铂/每周紫杉醇/pembrolizumab,最后维持pembrolizumab直到病情进展或出现毒性反应(最多20个周期)。主要终点是无进展生存期(PFS)。次要终点包括可行性、毒性和总生存期(OS)。对化疗前后的样本进行了PD-L1染色、多重免疫荧光染色、RNA测序和反相蛋白质阵列分析:31名符合条件的患者入组。中位PFS和OS分别为14.88个月(95% CI 12.39-23.00)和57.43个月(95% CI 30.88-未达到)。在PD-L1联合阳性评分(CPS)≥10分的患者中,与CPS评分≥10分的患者相比,中位PFS和OS均未达到结论:Pembrolizumab 联合化疗是可行的,其 PFS 在该 EOC 群体的历史范围内。CPS≥10的患者可能从这一方案中获益更多,未来的研究应调查这一潜在的生物标志物:这项由研究者发起的试验由默克公司资助。
{"title":"Pembrolizumab plus chemotherapy in frontline treatment of advanced ovarian cancer: Clinical and translational results from a phase 2 trial.","authors":"Jeffrey A How, Minghao Dang, Sanghoon Lee, Bryan Fellman, Shannon N Westin, Anil K Sood, Nicole D Fleming, Aaron Shafer, Ying Yuan, Jinsong Liu, Li Zhao, Joseph Celestino, Richard Hajek, Margaret B Morgan, Edwin R Parra, Caddie D Laberiano Fernandez, Claudio A Arrechedera, Luisa Maren Solis Soto, Kathleen M Schmeler, Alpa Nick, Karen H Lu, Robert Coleman, Linghua Wang, Amir A Jazaeri","doi":"10.1016/j.medj.2024.07.022","DOIUrl":"10.1016/j.medj.2024.07.022","url":null,"abstract":"<p><strong>Background: </strong>The efficacy and feasibility of pembrolizumab combined with chemotherapy in frontline management of advanced high-grade epithelial ovarian cancer (EOC) is unknown. Additionally, modification of the tumor microenvironment following neoadjuvant therapy is not well understood.</p><p><strong>Methods: </strong>In this single-arm phase 2 trial (this study was registered at ClinicalTrials.gov: NCT02520154), eligible patients received up to 4 cycles of neoadjuvant chemotherapy followed by interval cytoreduction, 3 cycles of adjuvant intravenous carboplatin/weekly paclitaxel/pembrolizumab, and finally maintenance pembrolizumab until progression or toxicity (maximum 20 cycles). The primary endpoint was progression-free survival (PFS). Secondary endpoints included feasibility, toxicity, and overall survival (OS). PD-L1 staining, multiplex immunofluorescence staining, RNA sequencing, reverse-phase protein array analyses were performed on pre- and post-chemotherapy samples.</p><p><strong>Findings: </strong>Thirty-one eligible patients were enrolled. Median PFS and OS was 14.88 (95% CI 12.39-23.00) and 57.43 months (95% CI 30.88-not reached), respectively. Among those with PD-L1 combined positive score (CPS) ≥10, the median PFS and OS were not reached compared to those with CPS <10 (10.50 and 30.90 months, respectively). Feasibility was met, with all patients completing their planned adjuvant cycles. Treatment discontinuation due to immune-related toxicity occurred in 6 patients (20%). Chemotherapy resulted in an infiltration of anti-tumor immune cells in the tumor microenvironment. Samples of patients with the best PFS demonstrated increased expression of NF-κB, TGF-β, and β-catenin signaling.</p><p><strong>Conclusions: </strong>Pembrolizumab with chemotherapy was feasible and resulted in PFS within the historical range for this EOC population. Patients with CPS ≥10 may benefit more from this regimen, and future studies should investigate this potential biomarker.</p><p><strong>Funding: </strong>This investigator-initiated trial was funded by Merck.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":" ","pages":"100494"},"PeriodicalIF":12.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11725453/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141996588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}