Dose-escalation Study to Investigate the Safety, PK, and PD of ISU304/CB2679d in Hemophilia B Patients

Hemophilia B Clinical Trial

Official title:

A Phase 1, Open-label, Multi-center, Dose-escalation Study to Investigate the Safety, Pharmacokinetics and Pharmacodynamics of ISU304 in Previously Treated Hemophilia B Patients

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03186677
• Other study ID #: ISU304-001/CB2679d
• Status: Completed
• Phase: Phase 1
• Start date: June 3, 2017
• Est. completion date: February 22, 2019

Study information

• Verified date: October 2020
• Source: ISU Abxis Co., Ltd.
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study is a phase 1, open-label, multi-center, dose-escalation study to investigate the safety, pharmacokinetics and pharmacodynamics of ISU304/CB2679d in previously treated hemophilia B patients.

Description:

This study is a phase 1, open-label, multi-center, dose-escalation study to investigate the safety, pharmacokinetics, and pharmacodynamics of ISU304/CB2679d/Dalcinonacog alfa in previously treated Hemophilia B patients.

This study is comprised of 5 cohorts. Each cohort may receive an intravenous administration of 75 IU/kg, with subcutaneous administrations from 75 IU/kg to 150 IU/kg.

During the study period, a subject may be hospitalized to facilitate the collection of blood samples for pharmacokinetic (PK)/pharmacodynamic (PD) analysis. The Data Safety Monitoring Board (DSMB) and Data Monitoring Committee (DMC) will be operated after the end of Cohorts 1 to 4. These committees will monitor the PK/PD and safety data from each cohort to determine the continuation of next cohort (Cohorts 2 to 5), target dose, and blood sampling period for PK/PD (including timing of collection). Additional subjects may be enrolled in all cohorts or cohorts may be canceled depending on the results of PK/PD analysis. A cohort of subcutaneous dosing at 300 IU/kg was cancelled as single-dose PK is uninformative.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 11
• Est. completion date: February 22, 2019
• Est. primary completion date: October 10, 2018
• Accepts healthy volunteers: No
• Gender: All
• Age group: 12 Years to 65 Years

Eligibility

Inclusion Criteria:

1. Previously treated male patients with moderate or severe hemophilia B (documented FIX activity = 2% and exposed to any FIX product for = 150 exposure days (estimated) at the time of screening)

2. Patients must be 12 to 65 years old at the time of screening

3. Patients who have discontinued a previously treated FIX product at least 4 days prior to the administration of investigational product

4. HIV negative, or if HIV positive with a CD4 count > 200/µL (documented < 200 particles/µL or = 400,000 copies/mL) at the time of screening

5. Voluntary consent to participate in the study

Exclusion Criteria:

1. Patients with a history or a family history of FIX inhibitors

2. Patients with FIX inhibitors (positive result for BeneFIX or ISU304 from inhibitor tests) at the time of screening

3. Patients who have a history of thromboembolic events (myocardial infarction, cerebrovascular disease, venous thrombosis, etc.)

4. Patients with known hypersensitivity, allergy, or anaphylaxis to any FIX product or hamster protein

5. Patients receiving treatment with a FIX product or a bypass agent within 4 half-lives for the agent used (at least 96 hours) prior to the administration of the investigational product

6. Patients who have been exposed to long-term administration of immunomodulating agents or immunosuppressants such as a-INF or adrenocortical hormones over the past 3 months or who are currently receiving or planning to receive such treatment during the study period

7. Patients who have been administered vaccines during the period of 6 months prior to the administration of the investigational product or plan to receive vaccines during the study period

8. Patients with any other co-existing bleeding disorder (Von Willebrand disease, etc.)

9. Patients with positive D-dimer results (= 0.5 µg/mL) at the time of screening

10. Patients with platelet counts less than 100,000/µL at the time of screening

11. Patients with ALT, AST levels 5 times greater than upper normal limit or total bilirubin, serum creatinine levels 2 times greater than upper normal limit at the time of screening

12. Active hepatitis patients who are HBs Ag positive or anti-HCV Ab positive at the time of screening

13. Patients scheduled for surgery during the study period

14. Patients participated in another study within 30 days before screening or scheduled to participate in any other study during the study period

Related Conditions & MeSH terms

• Hemophilia A
• Hemophilia B

Intervention

Biological:
• ISU304/CB2679d/Dalcinonacog alfa 75~150 IU/kg
ISU304/CB2679d/Dalcinonacog alfa 75~150 IU/kg by intravenous or subcutaneous
• BeneFIX
BeneFIX 75 IU/kg, intravenous administration

Locations

Country	Name	City	State
Korea, Republic of	Eulji University Hospital	Daejeon
Korea, Republic of	Pusan National Univesity Hospital	Pusan
Korea, Republic of	Yonsei University Medical Center	Seoul

Sponsors (2)

Lead Sponsor	Collaborator
ISU Abxis Co., Ltd.	Catalyst Biosciences

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Number of Adverse Events (AEs) After the Administration of Investigational Products (IP)	The number of reported AEs (local/systemic/other) after IP administration was calculated by cohort.	Through study completion, an average of 8 days
Secondary	Maximum Plasma Concentration (Cmax)	Cmax analysis was conducted by cohort as a Factor IX (FIX) potency percent	0 to 72 hours for Cohorts 1 to 3, 0 to 120 hours for Cohorts 4 and 5
Secondary	Factor IX Inhibitor	The presence/absence of Factor IX (FIX) neutralizing antibodies was assessed by ELISA anti-drug assay [Dalcinonacog alfa and BeneFIX) and if positive, a modified Nijmegen assay for each subject by cohort at end of study visit.; Measure description: count of participants with neutralizing antibodies. Bethesda Units >0.6 indicates presence of neutralizing antibodies. 1 BU is defined as a 50% reduction in FIX activity when adding participant plasma to a standard with known FIX activity.	At end of study visit (an average of 8 days)