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Hemophilia APhase 3NCT02172950

An Open-label Safety and Efficacy Study of Recombinant FVIII in Patients With Severe Hemophilia A

A Phase 3 study testing rVIII-SingleChain in people with Hemophilia A and Severe Hemophilia A, run by CSL Behring at 64 sites in 25 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This multicenter, open-label, phase 3 extension study will investigate the safety and efficacy of rVIII-SingleChain for prophylaxis and on-demand treatment of bleeding episodes in at least 200 previously treated patients (PTPs) with severe congenital hemophilia A and previous exposure to FVIII products who achieve at… Read more about this study

Who is it for?
Any age, men only
Conditions the study is for
Hemophilia A, Severe Hemophilia A
What is being tested?
rVIII-SingleChain
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
246 participants
Where
64 sitesin 25 countries
Study dates
13 Oct 2014to 19 Jan 2021
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • Men only
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • PTPs:
  • Males of any age who have been diagnosed with severe congenital hemophilia A (FVIII activity levels < 1%) and who participated in a previous CSL-sponsored clinical study with rVIII-SingleChain.
  • Males 0 to <65 years age who have been diagnosed with severe congenital hemophilia A (FVIII activity levels < 1%), who have at least 50 EDs to any FVIII product, and who are not currently enrolled in a CSL-sponsored clinical study with rVIII-SingleChain.
  • PUPs:
  • Males 0 to <18 years of who have been diagnosed with severe congenital hemophilia A (FVIII activity levels < 1%)
  • No prior exposure to any Factor VIII product (with the exception of short-term use of blood products).
  • ITI substudy:
  • PUPs who have developed a confirmed inhibitor to rVIII-SingleChain in the main study.

Who cannot join

  • Known or suspected hypersensitivity to rVIII-SingleChain or to any excipients of rVIII-SingleChain or Chinese hamster ovary (CHO) proteins.
  • Currently receiving a therapy not permitted during the study.
  • Serum creatinine > 2 x upper limit of normal, alanine aminotransferase or aspartate aminotransferase > 5 x upper limit of normal at Screening (if specified)
  • Any first-order family (eg, siblings) history of FVIII inhibitors
  • For PTPs not rolling over directly from a CSL-sponsored clinical study with rVIII-SingleChain: any history of or current FVIII inhibitors

Trial locations and contacts

64 sites in 25 countries.

64 sites in 25 countries

United States9 sites
  • Study Site 8400241

    Aurora, Colorado, 80045

  • Study Site 8400184

    Chicago, Illinois, 60612

  • Study Site 8400240

    Dallas, Texas, 75390-9016

  • Study Site 8400118

    Hartford, Connecticut, 06106

  • Study Site 8400041

    Houston, Texas, 77030

  • Study Site 8400116

    Miami, Florida, 33136

  • Study Site 8400154

    Milwaukee, Wisconsin, 53226

  • Study Site 8400204

    New Orleans, Louisiana, 70112

  • Study Site 8400213

    San Diego, California, 92103-8651

Other trials in United States

France5 sites
  • Study Site 2500015

    Brest, 29609

  • Study Site 2500017

    Le Kremlin-Bicêtre, 94270

  • Study Site 2500028

    Lille, 59037

  • Study Site 2500018

    Nantes, 44093

  • Study Site 2500002

    Paris, 75015

Other trials in France

Japan5 sites
  • Study Site 3920031

    Hyōgo, 663-8501

  • Study Site 3920029

    Nagoya, 466-8550

  • Study Site 3920064

    Okayama, 710-8602

  • Study Site 3920033

    Saitama, 339-8551

  • Study Site 3920025

    Tokyo, 160-0023

Other trials in Japan

Thailand5 sites
  • Study Site 7640001

    Bangkok, 10330

  • Study Site 7640005

    Bangkok, 10700

  • Study Site 7640002

    Chiang Mai, 50200

  • Study Site 7640004

    Khon Kaen, 40002

  • Study Site 7640003

    Songkhla, 90110

Other trials in Thailand

Austria4 sites
  • Study Site 0400012

    Graz, 8036

  • Study Site 0400003

    Linz, 4020

  • Study Site 0400001

    Vienna, 1090

  • Study Site 0400002

    Vienna, 1090

Other trials in Austria

Germany4 sites
  • Study Site 2760034

    Bonn, 53127

  • Study Site 2760091

    Frankfurt, 60596

  • Study Site 2760087

    Giessen, 35385

  • Study Site 2760066

    Hanover, 30625

Other trials in Germany

Poland4 sites
  • Study Site 6160013

    Gdansk, 80-952

  • Study Site 6160038

    Krakow, 31-531

  • Study Site 6160035

    Rzeszów, 35-301

  • Study Site 6160014

    Wroclaw, 50-367

Other trials in Poland

Spain4 sites
  • Study Site 7240008

    A Coruña, 15006

  • Study Site 7240021

    Barcelona, 08035

  • Study Site 7240007

    Madrid, 28046

  • Study Site 7240023

    Valencia, 46026

Other trials in Spain

Australia3 sites
  • Study Site 0360014

    Melbourne, 3052

  • Study Site 0360028

    Nedlands, WA 6009

  • Study Site 0360031

    Perth, WA 6000

Other trials in Australia

Netherlands3 sites
  • Study Site 5280006

    Amsterdam-Zuidoost, 1105 AZ

  • Study Site 5280008

    Nijmegen, 6500

  • Study Site 5280007

    Utrecht, 3584

Other trials in Netherlands

Philippines2 sites
  • Study Site 6080001

    Cebu City, 6000

  • Study Site 6080002

    Davao City, 8000

Other trials in Philippines

Romania2 sites
  • Study Site 6420030

    Bucharest, 011026

  • Study Site 6420037

    Timișoara, 300011

Other trials in Romania

Ukraine2 sites
  • Study Site 8040007

    Dnipropetrovsk, 49102

  • Study Site 8040005

    Lviv, 79044

Other trials in Ukraine

Canada1 site
  • Study Site 1240022

    Saint John, E2L 4L2

Other trials in Canada

Czechia1 site
  • Study Site 2030017

    Hradec Králové, 500 05

Other trials in Czechia

Georgia1 site
  • Study Site 2680001

    Tbilisi, 0179

Other trials in Georgia

Hungary1 site
  • Study Site 3480007

    Debrecen, 4032

Other trials in Hungary

Ireland1 site
  • Study Site 3720002

    Dublin, 12

Other trials in Ireland

Italy1 site
  • Study Site 3800023

    Milan, 20122

Other trials in Italy

Lebanon1 site
  • Study Site 4220007

    Beirut, 165191

Other trials in Lebanon

Malaysia1 site
  • Study Site 4580001

    Kuala Lumpur, 50400

Other trials in Malaysia

Portugal1 site
  • Study Site 6200001

    Porto, 4200-319

Other trials in Portugal

South Africa1 site
  • Study Site 7100001

    Parktown, 2193

Other trials in South Africa

Switzerland1 site
  • Study Site 7560010

    Lucerne, 6000

Other trials in Switzerland

United Kingdom1 site
  • Study Site 8260008

    London, NW3 2QG

Other trials in United Kingdom

About this study

Official title: A Phase III Open Label, Multicenter, Extension Study to Assess the Safety and Efficacy of Recombinant Coagulation Factor VIII (rVIII-SingleChain, CSL627) in Subjects With Severe Hemophilia A

This multicenter, open-label, phase 3 extension study will investigate the safety and efficacy of rVIII-SingleChain for prophylaxis and on-demand treatment of bleeding episodes in at least 200 previously treated patients (PTPs) with severe congenital hemophilia A and previous exposure to FVIII products who achieve at least 100 exposure days (EDs) to rVIII-SingleChain in this study, as well as in previously untreated patients (PUPs) with no previous exposure to any FVIII product who achieve at least 50 EDs to rVIII-SingleChain in this study. A substudy (open to both PTPs and PUPs) will investigate the use of rVIII-SingleChain in surgery. A substudy (open to PUPs who develop an inhibitor to rVIII-SingleChain) will investigate the use of rVIII-SingleChain in immune tolerance induction (ITI) therapy.

Being tested
rVIII-SingleChain
Medical subject headings
Hemophilia A

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • rVIII-SingleChainBiological

    Also called CSL627

    Recombinant single-chain coagulation factor VIII

Study groups in NCT02172950
Study groupRoleWhat they receive
Previously treated patients (PTPs)ExperimentalThe investigator will assign subjects to either prophylaxis or on-demand treatment regimens for rVIII-SingleChain by intravenous injection. The investigator will determine the rVIII-SingleChain dose and dosing schedule for the subject based upon the subject's pharmacokinetic (PK) profile, rVIII-SingleChain PK data, previous FVIII treatment regimen, and bleeding phenotype, if available.
Receives: Biological: rVIII-SingleChain
Previously untreated patients (PUPs)ExperimentalThe investigator will assign subjects to either prophylaxis or on-demand treatment regimens for rVIII-SingleChain by intravenous injection. The investigator will determine the rVIII-SingleChain dose and dosing schedule at their discretion, taking into consideration the World Federation of Hemophilia (WFH) guidelines, the type of bleeding episode, location of the bleeding, subject's age, and other disease characteristics.
Receives: Biological: rVIII-SingleChain

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of Inhibitor Formation to FVIII in Previously Treated Patients (PTPs) With 100 Exposure Days (EDs) to CSL627

    Measured: At the closest visit after 100 EDs (up to 5 years).

  2. Number of Previously Untreated Patients (PUPs) With High-titer Inhibitor Formation to FVIII With at Least 50 EDs to CSL627

    High-titer inhibitor is defined as an inhibitor titer of ≥ 5 Bethesda units/mL.

    Measured: At the closest visit after 50 EDs (up to 5 years).

  3. Percent Treatment Success for Major Bleeding Episodes in PUPs

    Percentage of major bleeding episodes treated successfully where treatment success for a bleeding episode is defined as a rating of "excellent" or "good" on the investigator's clinical assessment of hemostatic efficacy 4-point scale "excellent, good, moderate or poor/no response". Major bleeding episodes are defined as bleeding episodes for which a subject is required to seek treatment at the hemophilia center or that threatens the subject's life or loss of limb.

    Measured: Up to 5 years

  4. Annualized Spontaneous Bleeding Rate in PUPs

    The annualized spontaneous bleeding rate for PUPs taking prophylaxis and on-demand treatment regimens.

    Measured: Up to 5 years

Secondary outcomes (18)
  1. Percentage of Bleeding Episodes Treated Successfully in PTPs

    Percentage of bleeding episodes treated successfully where treatment success for a bleeding episode is defined as a rating of "excellent" or "good" on the investigator's clinical assessment of hemostatic efficacy 4-point scale "excellent, good, moderate or poor/no response".

    Measured: Up to 5 years

  2. Annualized Bleeding Rate in PTPs and PUPs

    The annualized bleeding rate for PTPs and PUPs taking prophylaxis and on-demand treatment regimens

    Measured: Up to 5 years

  3. Percentage of Bleeding Episodes Requiring 1, 2, 3, or > 3 Injections of CSL627 to Achieve Hemostasis in PTPs and PUPs

    Measured: Up to 5 years

  4. Mean Number of On-demand Infusions of CSL627

    Measured: Up to 5 years

  5. Mean On-demand Dose Administered of CSL627

    Measured: Up to 5 years

  6. Mean Prophylaxis Dose Administered of CSL627

    Measured: Up to 5 years

  7. Mean Total Amount of CSL627 Administered During Surgery Period in PTPs

    Measured: Day of surgery up to 336 hours post-surgery

  8. Total Amount of CSL627 Administered During Surgery Period in PUPs

    Measured: Day of surgery up to 336 hours post-surgery

  9. Hemostatic Efficacy of rVIII-SingleChain for PTPs and PUPs Who Undergo Surgery

    The investigator will rate the efficacy of the rVIII-SingleChain treatment during surgery based on a hemostatic efficacy four point rating scale of "excellent, good, moderate or poor/no response".

    Measured: From the start of surgery through the post-operative recovery (generally up to 14 days after surgery)

  10. Incidence of Inhibitor Formation to FVIII in PTPs After 10 EDs and After 50 EDs

    Measured: Up to 5 years

  11. Percentage of PTPs and PUPs Developing Antibodies Against CSL627

    Measured: PTPs: At the closest visit after 100 EDs (up to 5 years). PUPs: At the closest visit after 50 EDs (up to 5 years).

  12. Percentage of PTPs and PUPs Developing Antibodies to Chinese Hamster Ovary (CHO) Proteins

    Measured: PTPs: At the closest visit after 100 EDs (up to 5 years). PUPs: At the closest visit after 50 EDs (up to 5 years).

  13. Number of PUPs With High-titer Inhibitor Formation to FVIII After 10 EDs With CSL627

    High-titer inhibitor is defined as an inhibitor titer of ≥ 5 Bethesda units/mL.

    Measured: At the closest visit after 10 EDs (up to 5 years)

  14. Number of PUPs With Low-titer Inhibitor Formation to FVIII After 10 EDs and After 50 EDs With CSL627

    Low-titer inhibitor is defined as an inhibitor titer of less than 5 Bethesda units/mL.

    Measured: At the closest visit after 10 and after 50 EDs (up to 5 years)

  15. Incidence of Total Inhibitor Formation to FVIII in PUPs

    Measured: Up to 5 years

  16. Percent Treatment Success for Non-major Bleeding Episodes in PUPs

    Percentage of bleeding episodes treated successfully where treatment success for a bleeding episode is defined as a rating of "excellent" or "good" on the investigator's clinical assessment of hemostatic efficacy 4-point scale "excellent, good, moderate or poor/no response". Non-major bleeding episodes are those not requiring treatment at the hemophilia center or not threatening subject's life or loss of limb.

    Measured: Up to 5 years

  17. Percentage of PUPs With Clinically Significant Abnormal Vital Signs Values After First Infusion of CSL627

    Vital signs assessments include heart rate, blood pressure, and body temperature. Clinical significance of an abnormality will be assessed by the investigator.

    Measured: Up to 6 hours after first infusion

  18. Percentage of PUPs With Treatment-emergent Clinically Significant Abnormal Vital Signs Values

    Vital signs assessments include heart rate, blood pressure, and body temperature. Clinical significance of an abnormality will be assessed by the investigator.

    Measured: Up to 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Jun 2014 (estimated)
  2. Study start13 Oct 2014
  3. Primary completion19 Jan 2021
  4. Study completion19 Jan 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
246 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02172950
Sponsor's protocol ID
CSL627_3001
Other IDs
2013-003262-13
Status last verified
Sep 2021
First submitted
23 Jun 2014
Last updated
27 Oct 2021
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing rVIII-SingleChain in people with Hemophilia A and Severe Hemophilia A, run by CSL Behring at 64 sites in 25 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 64 sites in United States, France, Japan, Thailand, Austria and 20 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 27 Oct 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of Inhibitor Formation to FVIII in Previously Treated Patients (PTPs) With 100 Exposure Days (EDs) to CSL627 (time frame: At the closest visit after 100 EDs (up to 5 years).). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Oct 2021.

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