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Mukund A, Marri UK, Jindal A, Choudhury A, Patidar Y, Sarin SK. Safety and Efficacy of Transjugular Intrahepatic Portosystemic Shunt for Non-tumoral Cirrhotic Portal Vein Thrombosis Not Responding to Anticoagulation Therapy. Dig Dis Sci 2023:10.1007/s10620-023-07930-4. [PMID: 37169934 DOI: 10.1007/s10620-023-07930-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 03/14/2023] [Indexed: 05/13/2023]
Abstract
OBJECTIVES To evaluate the feasibility, safety, and efficacy of add-on transjugular-intrahepatic-portosystemic shunt (TIPS) for portal vein recanalization (PVR) in cirrhotic patients with non-tumoral chronic portal vein thrombosis (PVT) after 6 months of monitored anticoagulation therapy (ACT). METHODS We conducted a retrospective search of the hospital database for patients who underwent TIPS for persistent PVT despite 6 months of ACT (January 2011 to August 2021). These patients were compared to control group (ACT group; no TIPS but continued on ACT). Post-TIPS periodic assessment was done to look for clinical outcome, PVR (using contrast-enhanced CT scan), and complications. RESULTS A total of 90 patients were analyzed. Thirty-six patients in TIPS group and 54 patients in ACT group. TIPS was successfully performed in all patients. TIPS group showed complete recanalization of portal vein in 77.8%, partial recanalization in 16.7%, and stable thrombus in 5.5% of the patients. TIPS thrombosis was seen in 3 patients, all underwent successful endovascular thrombolysis. Seven patients developed post-TIPS hepatic encephalopathy and were managed conservatively. In contrast, no patient in ACT group achieved PVR on 12-month follow-up. After propensity score matching, patients in TIPS group showed significantly lower incidence of variceal re-bleeding (22.2% vs. 77.8%, p = 0.03) and refractory ascites (11.1% vs. 51.9%, p < 0.01) with significantly better 12-month survival as compared to ACT group (88.9% vs. 69.4%, p = 0.04). CONCLUSION TIPS in cirrhotic patients with PVT result in superior recanalization rates, better control of ascites, and variceal re-bleeding resulting in better survival. TIPS may be considered a preferred therapy after anticoagulation failure. CLINICAL IMPACT TIPS is associated with good technical and clinical success in patients of cirrhosis with PVT and should be considered in patients not responding to ACT.
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Affiliation(s)
- Amar Mukund
- Department of Interventional Radiology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi, 110070, India
| | - Uday Kumar Marri
- Department of Interventional Radiology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi, 110070, India
| | - Ankur Jindal
- Department of Hepatology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi, 110070, India.
| | - Ashok Choudhury
- Department of Hepatology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi, 110070, India
| | - Yashwant Patidar
- Department of Interventional Radiology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi, 110070, India
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi, 110070, India
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Efficacy and safety of transjugular intrahepatic portosystemic shunt for the treatment of schistosomiasis-induced portal hypertension: a retrospective case series. Eur J Gastroenterol Hepatol 2022; 34:1090-1097. [PMID: 36062499 DOI: 10.1097/meg.0000000000002433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND AIM The aim of this study was to evaluate the efficacy and safety of transjugular intrahepatic portosystemic shunt (TIPS) in the treatment of portal hypertension caused by schistosomiasis. METHODS This study included 43 patients with schistosomiasis-induced portal hypertension treated with TIPS in our institution from December 2015 to May 2021. The demographic, imaging, clinical and follow-up data of patients were recorded retrospectively to evaluate the efficacy and safety of the procedure. RESULTS All patients were successfully implanted with stents to establish shunt, and 90.7% of the patients were in good postoperative condition with no complications. After TIPS, the Yerdel grade of portal vein thrombosis decreased, and the portal pressure gradient decreased from 27.0 ± 4.9 mmHg to 11.3 ± 3.8 mmHg (P < 0.001). Bleeding was effectively controlled, with a postoperative rebleeding rate of 9.3%, which was an 87.9% reduction from the preoperative rate. The cumulative incidence of postoperative refractory ascites, shunt dysfunction, overt hepatic encephalopathy (OHE) and death were all similar to those of TIPS for nonschistosomiasis portal hypertension. There were no differences in liver and kidney function and blood coagulation indexes before and 3 months after TIPS. Albumin was identified as an independent risk factor for mortality after TIPS for schistosomal liver fibrosis. CONCLUSION TIPS can be used as a well-tolerated and effective treatment for schistosomiasis-induced portal hypertension, effectively reduce portal pressure gradient and improve portal vein thrombosis.
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Zhan PC, Li Z, Li X, Lv PJ, Zhang YY, Yu P, Ji K, Shi Y, Ye SW, Xie BC, Gao JB, Zhou PL, Wu G. A Nomogram to Predict the Risk of Stent Dysfunction After TIPS in Patients with Hepatitis B Cirrhosis. Acad Radiol 2022; 29:1532-1540. [PMID: 35216866 DOI: 10.1016/j.acra.2022.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/13/2022] [Accepted: 01/23/2022] [Indexed: 12/14/2022]
Abstract
RATIONALE AND OBJECTIVES To develop and validate a nomogram for the prediction of stent dysfunction after transjugular intrahepatic portosystemic shunt (TIPS) placement in patients with hepatitis B cirrhosis. MATERIALS AND METHODS From 2012 to 2020, 355 patients with hepatitis B cirrhosis who underwent TIPS placements were enrolled in this study. A multivariable logistic regression analysis was applied to determine independent risk factors for the nomogram construction. Discrimination, calibration, and clinical usefulness of the prediction model were assessed by using receiver operating characteristic curves, calibration scatter plots, and a decision curve analysis (DCA). RESULTS Independent factors for TIPS stent dysfunction included diabetes, previous splenectomy, the shunting branch of the portal vein, and stent position, which were used to construct the nomogram. The AUC values in the training and validation cohorts were 0.817 (95% CI: 0.731-0.903) and 0.804 (95% CI: 0.673-0.935), respectively, which suggested a good predictive ability. The calibration curves in both cohorts revealed good agreement between the predictions and actual observations. The DCA curve indicated that when the threshold probability ranged from 2% to 88%, the nomogram could provide clinical usefulness and a net benefit. CONCLUSION The nomogram that we developed could be conveniently used to predict TIPS stent dysfunction in patients with hepatitis B cirrhosis.
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Affiliation(s)
- Peng-Chao Zhan
- Department of Radiology, Zhengzhou University First Affiliated Hospital, Zhengzhou, China
| | - Zhen Li
- Department of Interventional Radiology, Zhengzhou University First Affiliated Hospital, No.1 Jianshe Road, Zhengzhou 450052, China.
| | - Xin Li
- Department of Interventional Radiology, Zhengzhou University First Affiliated Hospital, No.1 Jianshe Road, Zhengzhou 450052, China
| | - Pei-Jie Lv
- Department of Radiology, Zhengzhou University First Affiliated Hospital, Zhengzhou, China
| | - Yu-Yuan Zhang
- Department of Interventional Radiology, Zhengzhou University First Affiliated Hospital, No.1 Jianshe Road, Zhengzhou 450052, China
| | - Peng Yu
- Department of Interventional Radiology, Zhengzhou University First Affiliated Hospital, No.1 Jianshe Road, Zhengzhou 450052, China
| | - Kun Ji
- Department of Interventional Radiology, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Yang Shi
- Department of Radiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shu-Wen Ye
- Department of Interventional Radiology, Zhengzhou University First Affiliated Hospital, No.1 Jianshe Road, Zhengzhou 450052, China
| | - Bing-Can Xie
- Department of Interventional Radiology, Zhengzhou University First Affiliated Hospital, No.1 Jianshe Road, Zhengzhou 450052, China
| | - Jian-Bo Gao
- Department of Radiology, Zhengzhou University First Affiliated Hospital, Zhengzhou, China
| | - Peng-Li Zhou
- Department of Interventional Radiology, Zhengzhou University First Affiliated Hospital, No.1 Jianshe Road, Zhengzhou 450052, China
| | - Gang Wu
- Department of Interventional Radiology, Zhengzhou University First Affiliated Hospital, No.1 Jianshe Road, Zhengzhou 450052, China
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Khayat CD, Lohade S, Zekavat OR, Kruzhkova I, Solomon C, Peyvandi F. Efficacy and safety of fibrinogen concentrate for perioperative prophylaxis of bleeding in adult, adolescent, and pediatric patients with congenital fibrinogen deficiency: FORMA-02 and FORMA-04 clinical trials. Transfusion 2022; 62:1871-1881. [PMID: 35932202 DOI: 10.1111/trf.17029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Congenital fibrinogen deficiency (CFD) is a rare coagulation disorder placing patients at increased bleeding risk. Human fibrinogen concentrate (HFC) represents current standard of care for fibrinogen replacement in CFD, however, limited data are available on HFC for prophylactic administration before/during surgery. Here, we report results and dosing considerations for HFC treatment in perioperative bleeding management in adult, adolescent, and pediatric patients with CFD. STUDY DESIGN AND METHODS FORMA-02/FORMA-04 were multinational, prospective, open-label, uncontrolled Phase 3 HFC efficacy/safety studies for surgical bleeding prophylaxis in adult/adolescent (≥12 years) and pediatric patients (<12 years) respectively. HFC dosing was calculated to achieve pre-established target fibrinogen plasma levels. Overall hemostatic efficacy was assessed as success/failure by an Independent Data Monitoring and Endpoint Adjudication Committee (IDMEAC) according to objective criteria. RESULTS Twelve patients (≥12 years, N = 9; <12 years, N = 3) received HFC for surgical prophylaxis (15 surgeries; 13 minor, 2 major). Eleven minor surgeries in patients aged ≥12 years required a median of 1 infusion (range; 1-5), with a mean (±SD) dose of 93.50 mg/kg [±41.43] and two minor surgeries in patients <12 years required 1 infusion (91.55 mg/kg [±23.40]). The major surgery in an adult patient required eight infusions (225.3 mg/kg total dose). The major surgery in a pediatric patient required six infusions (450.4 mg/kg). All surgeries were rated successful by the IDMEAC. DISCUSSION In adults/adolescents and pediatric patients with fibrinogen deficiency, HFC treatment for hemostatic management during/after minor and major surgery was successful, with efficacy comparable across the different age groups.
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Affiliation(s)
| | | | - Omid Reza Zekavat
- Hematology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Irina Kruzhkova
- Research & Development Department, Octapharma, Lachen, Switzerland
| | - Cristina Solomon
- Research & Development Department, Octapharma, Lachen, Switzerland
| | - Flora Peyvandi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center and Fondazione Luigi Villa, Milan, Italy
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Yang C, Liu J, Shi Q, Huang S, Zhou C, Wang Y, Li T, Chen Y, Xiong B. Effect of splenectomy on the outcomes in patients with cirrhosis receiving transjugular intrahepatic portosystemic shunt. J Gastroenterol Hepatol 2021; 36:2893-2902. [PMID: 33973270 PMCID: PMC8518516 DOI: 10.1111/jgh.15543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/28/2021] [Accepted: 05/08/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Patients indicated to transjugular intrahepatic portosystemic shunt (TIPS) placement may have splenectomy history due to thrombocytopenia. This study aimed to evaluate the effect of prior splenectomy on TIPS procedure and post-TIPS outcomes. METHODS We conducted a longitudinal analysis based on a cohort of 284 patients with cirrhosis submitted to TIPS; 74 patients had splenectomy history (splenectomy group) and 210 did not (non-splenectomy group). Cox proportional hazards models were used to evaluate the association between splenectomy and outcomes after TIPS. The primary outcome was shunt dysfunction. Secondary outcomes included all-cause mortality, clinical recurrence of bleeding or ascites, and overt hepatic encephalopathy (OHE). RESULTS During a median follow-up of 16.2 months, the splenectomy group had significantly lower rates of postoperative shunt patency (85.5% vs 95.6% at 1 year and 75.2% vs 86.5% at 2 years; adjusted hazard ratio [HR] 2.53; 95% confidence interval [CI] 1.21-5.12; P = 0.01) and higher risk of OHE (adjusted HR 1.82; 95% CI 1.03-3.54; P = 0.04). But the risk of mortality (adjusted HR 0.87; 95% CI 0.41-1.87; P = 0.73) and recurrent bleeding or ascites (adjusted HR 1.17; 95% CI 0.53-2.35; P = 0.77) showed no statistical difference. Multivariate analysis confirmed splenectomy history and endoscopic therapy as independent predictors of shunt dysfunction. Besides, pre-TIPS splenectomy increased the difficulty of TIPS procedure by complicating portal vein puncture. CONCLUSIONS For patients with cirrhosis submitted to TIPS, prior splenectomy complicated TIPS procedure and increased the risk of shunt dysfunction and OHE after TIPS, but was not significantly associated with the occurrence of mortality and recurrent bleeding or ascites.
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Affiliation(s)
- Chongtu Yang
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
| | - Jiacheng Liu
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
| | - Qin Shi
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
| | - Songjiang Huang
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
| | - Chen Zhou
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
| | - Yingliang Wang
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
| | - Tongqiang Li
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
| | - Yang Chen
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
| | - Bin Xiong
- Department of Radiology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Hubei Province Key Laboratory of Molecular ImagingWuhanChina
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Zhang JB, Chen J, Zhou J, Wang XM, Chen S, Chu JG, Liu P, Ye ZD. Systematic review and meta-analysis of trans-jugular intrahepatic portosystemic shunt for cirrhotic patients with portal vein thrombosis. World J Clin Cases 2021; 9:5179-5190. [PMID: 34307565 PMCID: PMC8283597 DOI: 10.12998/wjcc.v9.i19.5179] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/21/2021] [Accepted: 04/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Portal vein thrombosis (PVT) was previously a contraindication for trans-jugular intrahepatic portosystemic shunt (TIPS).
AIM To perform a systematic review and meta-analysis of the current available studies investigating outcomes of TIPS for cirrhotic patient with PVT.
METHODS Multiple databases were systematically searched to identify studies investigating the outcomes of TIPS for cirrhotic patients with PVT. The quality of studies was assessed by Cochrane Collaboration method and Methodological Index for Non-Randomized Studies. The demographic data, outcomes, combined treatment, and anticoagulation strategy were extracted.
RESULTS Twelve studies were identified with 460 patients enrolled in the analysis. The technical success rate was 98.9% in patients without portal vein cavernous transformation and 92.3% in patients with portal vein cavernous transformation. One-year portal vein recanalization rate was 77.7%, and TIPS patency rate was 84.2%. The cumulative encephalopathy rate was 16.4%. One-year overall survival was 87.4%.
CONCLUSION TIPS is indicated for portal hypertension related complications and the restoration of pre-transplantation portal vein patency in cirrhotic patients with PVT. Cavernous transformation is an indicator for technical failure. Post-TIPS anticoagulation seems not mandatory. Simultaneous TIPS and percutaneous mechanical thrombectomy device could achieve accelerated portal vein recanalization and decreased thrombolysis-associated complications, but further investigation is still needed.
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Affiliation(s)
- Jian-Bin Zhang
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Jie Chen
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Jin Zhou
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xu-Ming Wang
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Shu Chen
- Department of Interventional Radiology, Affiliated People’s Hospital of Inner Mongolia Medical University, Hohhot 010020, Inner Mongolia Autonomous Region, China
| | - Jian-Guo Chu
- Department of Radiology, Air Force Medical Center of PLA, Beijing 100142, China
| | - Peng Liu
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Zhi-Dong Ye
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
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Yuan HL, Wang M, Chu WW, Li FX, Lu JJ, Li Y. Nomogram Model for Prediction of Portal Vein Thrombosis in Patients with Liver Cirrhosis After Splenectomy: A Retrospective Analysis of 2 Independent Cohorts. Med Sci Monit 2021; 27:e929844. [PMID: 34075015 PMCID: PMC8183155 DOI: 10.12659/msm.929844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background The aim of this study was to establish and validate an easy-to-use nomogram to predict portal vein thrombosis (PVT) in patients with cirrhosis after splenectomy and to test its predictive ability. Material/Methods This retrospective study included 315 patients with cirrhosis who underwent splenectomy at 2 high-volume medical centers. The least absolute shrinkage and selection operator (LASSO) regression method was used to select the predictors in the training cohort, and multivariable logistic regression analysis was performed to establish the predictive nomogram model. We determined the prediction value of the nomogram by the area under the receiver operating characteristic curve (AUROC), the calibration curve, and decision curve analysis. Finally, the applicability of the nomogram was internally and independently validated. Results The predictors of PVT included portal vein diameter, splenic vein diameter, body mass index, and platelet count. Based on the clinical and radiomic models, the nomogram had good predictive efficiency for predicting PVT in patients with cirrhosis after splenectomy, with an AUROC of 0.887 (0.856 in internal validation and 0.796 in independent validation). The decision curve analysis revealed that the nomogram had good clinical application value. Conclusions We successfully developed an easy-to-use nomogram to predict the probability of PVT in patients with cirrhosis after splenectomy. The nomogram can help clinicians make timely, individualized clinical decisions for PVT in patients with cirrhosis after splenectomy.
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Affiliation(s)
- Hai-Liang Yuan
- Department of Gastroenterology, Zhejiang University School of Medicine, First Affiliated Hospital, Beilun Branch, Ningbo, Zhejiang, China (mainland)
| | - Min Wang
- Department of Liver Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jangxi, China (mainland)
| | - Wei-Wei Chu
- Department of Gastroenterology, Zhejiang University School of Medicine, First Affiliated Hospital, Beilun Branch, Ningbo, Zhejiang, China (mainland)
| | - Fang-Xian Li
- Department of Gastroenterology, Zhejiang University School of Medicine, First Affiliated Hospital, Beilun Branch, Ningbo, Zhejiang, China (mainland)
| | - Jing-Jing Lu
- Department of Gastroenterology, Zhejiang University School of Medicine, First Affiliated Hospital, Beilun Branch, Ningbo, Zhejiang, China (mainland)
| | - Yan Li
- Department of Gastroenterology, Zhejiang University School of Medicine, First Affiliated Hospital, Beilun Branch, Ningbo, Zhejiang, China (mainland)
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Djambas Khayat C, Lohade S, D'Souza F, Shamanur LG, Zekavat OR, Kruzhkova I, Schwartz B, Solomon C, Knaub S, Peyvandi F. Efficacy and safety of fibrinogen concentrate for on-demand treatment of bleeding and surgical prophylaxis in paediatric patients with congenital fibrinogen deficiency. Haemophilia 2020; 27:283-292. [PMID: 33326665 PMCID: PMC8049000 DOI: 10.1111/hae.14230] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/18/2020] [Accepted: 11/25/2020] [Indexed: 12/12/2022]
Abstract
Background Congenital fibrinogen deficiency (CFD) is a rare, inherited disorder affecting normal blood clotting function, where patients can experience severe and/or frequent bleeding episodes (BEs). Treatment with human fibrinogen concentrate (HFC) can prevent/arrest bleeding. There is a need for more data on the efficacy, pharmacokinetics (PK) and safety of HFC treatment in paediatric patients with CFD. Methods Haemostatic efficacy of HFC (Fibryga®, Octapharma AG) for on‐demand treatment of bleeding and surgical prophylaxis in patients <12 years old was assessed by investigators and an Independent Data Monitoring and Endpoint Adjudication Committee (IDMEAC) based on an objective 4‐point efficacy scale. Maximum clot firmness (MCF; surrogate marker of haemostatic efficacy), single‐dose PK and safety were also assessed. Results Of 14 patients receiving HFC (median [range] age 6.0 years [1.0–10.0]), eight received HFC for 10 BEs, three for surgical prophylaxis and 13 for PK. The IDMEAC rated haemostatic efficacy as 100% successful for on‐demand BE treatment (95% CI 69.15–100.00) and surgical prophylaxis (95% CI 29.24–100.00). After a mean first dose of 70.78 mg/kg for BEs, mean (±SD) MCF significantly increased from pre‐treatment to 1‐hour post‐infusion (3.3 mm [±1.77]; P = 0.0002), coinciding with haemostatic efficacy. PK parameters were favourable. Two possibly related adverse events occurred, including one serious (portal vein thrombosis). No allergic/hypersensitivity reactions or deaths were observed. Conclusion HFC treatment for on‐demand treatment of BEs and surgical prophylaxis was efficacious for this ultra‐rare paediatric population with congenital afibrinogenaemia and showed a favourable PK and safety profile.
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Affiliation(s)
| | | | | | | | - Omid Reza Zekavat
- Hematology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Irina Kruzhkova
- Research & Development Department, Octapharma, Lachen, Switzerland
| | - Bruce Schwartz
- Clinical Research & Development, Octapharma, Paramus, NJ, USA
| | - Cristina Solomon
- Research & Development Department, Octapharma, Lachen, Switzerland
| | - Sigurd Knaub
- Research & Development Department, Octapharma, Lachen, Switzerland
| | - Flora Peyvandi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center and Fondazione Luigi Villa, Milan, Italy
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