scholarly journals Long-Term Safety and Efficacy of Nonacog Beta Pegol (N9-GP) Administered for at Least 5 Years in Previously Treated Children with Hemophilia B

2020 ◽  
Vol 120 (05) ◽  
pp. 737-746
Author(s):  
Manuel Carcao ◽  
Susan Kearney ◽  
Meng Yao Lu ◽  
Masashi Taki ◽  
Daniel Rubens ◽  
...  
Keyword(s):  
Factor Ix ◽  
Hemophilia B ◽  
Phase Iii ◽  
Open Label ◽  
Safety And Efficacy ◽  
Previously Treated Patients ◽  
Previously Treated ◽  
Inhibitory Antibodies

AbstractLong-term safety and efficacy data of extended half-life factor IX (FIX) prophylaxis in children with hemophilia B (HB) are sparse. paradigm 5 is a multinational, open-label, single-arm, phase III trial assessing once-weekly (40 IU/kg) prophylactic nonacog beta pegol (N9-GP) in previously treated patients (PTPs) aged ≤ 12 years with HB (FIX activity ≤ 2%). Primary endpoint: incidence of anti-FIX inhibitory antibodies (≥ 0.6 Bethesda Units). We present a 5-year analysis (N = 25, including remaining patients with ≥ 5 years' follow-up) and compare with a 1-year analysis (≥ 52 weeks' exposure). The main phase enrolled 25 children; 22 entered the extension phase; 17 remained in trial at data cutoff. Median treatment period: 5.6 years/patient; median total number of N9-GP exposure days: 290.0/patient. No patients developed anti-FIX inhibitory antibodies. No other safety concerns, including thromboembolic events, were reported. Neurological examinations have not revealed any new abnormal findings. Sixteen (64.0%) patients remained free from spontaneous bleeds; all bleeds were mild/moderate in severity; 93.0% were controlled with 1 to 2 N9-GP injections. No intracranial hemorrhages were reported. Annualized bleeding rates (ABRs) were very low at 5 years (median/Poisson-estimated mean overall ABR: 0.66/0.99), having decreased from the 1-year analysis (1.00/1.44). Median/Poisson-estimated mean spontaneous ABRs for the 1- and 5-year analyses: 0.00/0.45 and 0.00/0.33. Mean FIX trough activity at 5 years: 17.9%. Mean polyethylene glycol plasma concentration reached steady state at 6 months, increasing slightly over time, in line with increased FIX trough activity. N9-GP administered for ≥ 5 years shows favorable long-term safety and efficacy in PTPs with HB (FIX activity ≤ 2%).

Efficacy and Safety Results of Prolong-9FP Clinical Program of Recombinant Fusion Protein Linking Coagulation Factor IX with Albumin (rIX-FP) in Previously Treated Patients with Hemophilia B

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 548-548 ◽  
Author(s):  
Elena Santagostino ◽  
Christine Voigt ◽  
Denise Wolko ◽  
Grace Cole ◽  
Yanyan Li ◽  
...  
Keyword(s):  
Day Treatment ◽  
Hemophilia B ◽  
Spontaneous Bleeding ◽  
Safety And Efficacy ◽  
On Demand ◽  
Routine Prophylaxis ◽  
Previously Treated Patients ◽  
Previously Treated ◽  
Bleeding Episodes

Abstract A fusion protein genetically linking recombinant human coagulation FIX with recombinant human albumin (rIX-FP) has been developed with an improved PK profile, thus improving hemophilia B treatment by allowing less frequent dosing. Two Phase 3 studies (CSL654-3001 and CSL654-3002) were completed. CSL654-3001 study evaluated safety and efficacy of rIX-FP for prophylaxis treatment (PT) of every 7-, 10- and 14-day and on-demand (ODT) of bleeding episodes in 63 previously treated patients (PTP), 12-61 years of age with hemophilia B (FIX ≤ 2%). Subjects in the on-demand arm received only ODT for 6 months and then switched to every 7-day PT. Subjects in the prophylaxis arm received every 7-day PT, and eligible subjects switched to every 10- or 14-day PT for approximately 12-18 months. Annualized spontaneous bleeding rates (AsBR) were compared between ODT and PT periods (in on-demand arm), and between 7-day PT and 10- or 14-day PT (in prophylaxis arm). CSL654-3002 study evaluated safety and efficacy of rIX-FP for weekly prophylaxis regimen in 27 previously treated patients younger than 12 years with hemophilia B (FIX ≤ 2%) for approximately 12 months. Annualized spontaneous bleeding rates (AsBR) were calculated. The median annualized spontaneous bleeding rate were all 0.00 for all treatment interval (7-day, 10-day or 14-day) and in both studies age groups (1-11 years and 12-65 years) during the two completed phase 3 studies. Seventy-six subjects from both studies continued their prophylaxis regimen in the on-going extension study. In addition, subjects (including children), switched to longer treatment intervals of 10-day, 3 times per month or 14-day or lowered their weekly prophylaxis dose. Nine subjects switched to 21-day treatment interval with 100 IU/kg rIX-FP. As of 28 July 2015, at least 50 subjects (PTP) had achieved 100 EDs without developing an inhibitor to FIX or antibodies to rIX-FP. The long term safety and efficacy of rIX-FP will be presented. This presentation includes the new information regarding the change to longer than 7-day treatment regimens in the extension study, among those subjects (1-61 years of age) that previously participated in the lead in studies. Conclusion: The Prolong - 9FP clinical programdemonstrated the clinical efficacy of rIX-FP for routine prophylaxis every 7-, 10- and 14-day treatment intervals. Routine prophylaxis once every 21 days may be effective in preventing bleeding episodes in a selected patient population. In addition, rIX-FP demonstrated favorable long-term safety and tolerability. Disclosures Santagostino: Novo Nordisk: Speakers Bureau; Bayer: Speakers Bureau; CSL Behring: Speakers Bureau; Baxter/Baxalta: Speakers Bureau; Pfizer: Research Funding, Speakers Bureau; Biogen/Sobi: Speakers Bureau; Biotest: Speakers Bureau; Kedrion: Speakers Bureau; Octapharma: Speakers Bureau; Roche: Speakers Bureau. Voigt:CSL Behring: Employment. Wolko:CSL Behring: Employment. Cole:CSL Behring: Employment. Li:CSL Behring: Employment. Jacobs:CSL Behring: Employment.

A Pharmacokinetic Study of the Plasma-Derived Factor IX AlphaNine® and Its Comparison with the Recombinant Factor IX BeneFIX®, in Previously Treated Patients with Severe Hereditary Hemophilia B.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 3955-3955
Author(s):  
Vicente R. Cortina ◽  
T. Lissichkov ◽  
K. Zavilska ◽  
M. Matysiak ◽  
L. Gercheva ◽  
...  
Keyword(s):  
Half Life ◽  
Factor Ix ◽  
Hemophilia B ◽  
Severe Haemophilia ◽  
Open Label ◽  
Recombinant Factor Ix ◽  
Previously Treated Patients ◽  
Previously Treated ◽  
In Vivo Recovery

Abstract Objectives The objective of the present study was two fold: first, to determine the pharmacokinetic (PK) profile of the plasma-derived FIX concentrate AlphaNine® in patients with congenital severe haemophilia B (FIX:C 2%). To do this, two PK studies were carried out one six months after the first. The second objective was a comparison of the Alphanine® PK profile with the recombinant Factor IX, BeneFIX®. Patients and methods The first study was a prospective, five-center, open-label, comparative, PK study carried out in 25 severe hemophilia B patients who received 2 single doses of 65–75 IU/kg of AlphaNine® within 6 months (t=0 and t=6). The following parameters were assessed: in vivo recovery, half-life, AUC, mean residence time and clearance. As an extension of the study, a single dose of 65–75 IU/kg of BeneFIX® was administered in 9 out of 25 patients, after a wash-out period of 7–15 days. Results Table 1 summarizes the results obtained when comparing AlphaNine® within a period of time of 6 months (PK1 vs PK2) in 25 patients. Table 2 shows the results obtained when comparing the in vivo recovery of AlphaNine ® vs BeneFIX ® in the 9 patients studied. Conclusions These results confirm that AlphaNine® PK has similar profile as other plasma derived FIX products presently available to treat Hemophilia B patients. In addition, our results show that the recombinant FIX studied, BeneFIX® has a reduced in vivo recovery when is compared to AlphaNine®. Table 1 Parameter AlphaNine® (PK1) t=0 m AlphaNine® (PK2) t=6 m Results are expressed as Mean (SD) In vivo recovery (IU/dl:IU/kg) 1.0 (0.2) 1.2 (0.4) Half-life (h) 34.5 (6.2) 33.7 (5.4) Clearance (ml/min) 0.07 (0.01) 0.07 (0.01) AUC0-inf (IUxh/dl) 1602 (312) 1644 (360) MRT0-inf (h) 35.8 (5.4) 34.6 (5.2) Table 2 Parameter AlphaNine® (PK2) BeneFIX® Results are expressed as Mean (SD); * p<0.05 for the comparison of the in vivo recovery for the BeneFIX® group with the AlphaNine® PK2 In vivo recovery (IU/dl:IU/kg) 1.3 (0.5) 0.8 (0.2)*

scholarly journals Long-Term Safety and Efficacy of Recombinant Coagulation Factor IX Albumin Fusion Protein (rIX-FP) in Previously Treated Pediatric Patients with Hemophilia B: Results from a Phase 3b Extension Study

2020 ◽  
Vol 120 (04) ◽  
pp. 599-606
Author(s):  
Gili Kenet ◽  
Hervé Chambost ◽  
Christoph Male ◽  
Susan Halimeh ◽  
Thierry Lambert ◽  
...  
Keyword(s):  
Pediatric Patients ◽  
Coagulation Factor ◽  
Factor Ix ◽  
Hemophilia B ◽  
Extension Study ◽  
Safety And Efficacy ◽  
Coagulation Factor Ix ◽  
Previously Treated ◽  
Bleeding Episodes

Abstract Introduction A phase 3b extension study evaluated the long-term safety and efficacy of a recombinant fusion protein-linking coagulation factor IX (FIX) with albumin (rIX-FP) for the routine prophylaxis and on-demand treatment of bleeding in pediatric hemophilia B patients. Methods Previously treated patients aged <12 years with moderate to severe hemophilia B enrolled in a 3-year extension study following a phase 3 pivotal study in which they received weekly rIX-FP prophylaxis. In the extension study, they could maintain or extend their prophylaxis interval to every 10 or 14 days if they were well controlled on the 7-day regimen. Results Compared with their initial regimen, by the end of the study, dosing intervals were the same, extended, and shortened in 16, 4, and 4 patients, respectively. Very low annualized spontaneous bleeding rates (AsBRs) were observed; median AsBR was 0.0 for the 7- and 10-day regimens, and 1.1 for the 14-day regimen. The 7- and 14-day regimens were comparable in preventing spontaneous bleeds; mean (95% confidence interval) difference in AsBR of −1.2 (−2.6 to 0.3) bleeding episodes/year/subject. Overall, 96% of bleeding episodes were successfully treated with one or two injections of rIX-FP. Patients on a 14-day regimen maintained a mean steady-state trough FIX level of >7.2 IU/dL. No patient developed an inhibitor. Conclusion This extension study demonstrated the long-term safety and efficacy of weekly rIX-FP in pediatric patients. Additionally, it showed that adequate bleed protection can be achieved with 10- or 14-day rIX-FP regimens in selected pediatric patients while maintaining safety.

scholarly journals Long-term safety and efficacy of brivaracetam in adults with focal seizures: Results from an open-label, multinational, follow-up trial

2020 ◽  
Vol 166 ◽  
pp. 106404 ◽  
Author(s):  
Stephan Arnold ◽  
Cédric Laloyaux ◽  
Anne-Liv Schulz ◽  
Sami Elmoufti ◽  
Stephen Yates ◽  
...  
Keyword(s):  
Open Label ◽  
Safety And Efficacy ◽  
Focal Seizures

scholarly journals Effects of renal denervation on kidney function and long-term outcomes: 3-year follow-up from the Global SYMPLICITY Registry

2019 ◽  
Vol 40 (42) ◽  
pp. 3474-3482 ◽  
Author(s):  
Felix Mahfoud ◽  
Michael Böhm ◽  
Roland Schmieder ◽  
Krzysztof Narkiewicz ◽  
Sebastian Ewen ◽  
...  
Keyword(s):  
Renal Function ◽  
Real World ◽  
Active Sites ◽  
Renal Denervation ◽  
Uncontrolled Hypertension ◽  
Open Label ◽  
Hypertensive Patients ◽  
Safety And Efficacy

Abstract Aims Several studies and registries have demonstrated sustained reductions in blood pressure (BP) after renal denervation (RDN). The long-term safety and efficacy after RDN in real-world patients with uncontrolled hypertension, however, remains unknown. The objective of this study was to assess the long-term safety and efficacy of RDN, including its effects on renal function. Methods and results The Global SYMPLICITY Registry is a prospective, open-label registry conducted at 196 active sites worldwide in hypertensive patients receiving RDN treatment. Among 2237 patients enrolled and treated with the SYMPLICITY Flex catheter, 1742 were eligible for follow-up at 3 years. Baseline office and 24-h ambulatory systolic BP (SBP) were 166 ± 25 and 154 ± 18 mmHg, respectively. SBP reduction after RDN was sustained over 3 years, including decreases in both office (−16.5 ± 28.6 mmHg, P < 0.001) and 24-h ambulatory SBP (−8.0 ± 20.0 mmHg; P < 0.001). Twenty-one percent of patients had a baseline estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2. Between baseline and 3 years, renal function declined by 7.1 mL/min/1.73 m2 in patients without chronic kidney disease (CKD; eGFR ≥60 mL/min/1.73 m2; baseline eGFR 87 ± 17 mL/min/1.73 m2) and by 3.7 mL/min/1.73 m2 in patients with CKD (eGFR <60 mL/min/1.73 m2; baseline eGFR 47 ± 11 mL/min/1.73 m2). No long-term safety concerns were observed following the RDN procedure. Conclusion Long-term data from the Global SYMPLICITY Registry representing the largest available cohort of hypertensive patients receiving RDN in a real-world clinical setting demonstrate both the safety and efficacy of the procedure with significant and sustained office and ambulatory BP reductions out to 3 years.

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