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Haemophilia A, Haemophilia BNCT06831734

Post-marketing Surveillance (Special Use-results Surveillance) on Treatment With Alhemo

An observational study of Haemophilia A, Haemophilia B, run by Novo Nordisk A/S at 23 sites in Japan.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The purpose of the study is to investigate the safety and effectiveness of Alhemo in participants under real-world clinical practice in Japan. Total duration of this study is about 6 years. Participants enrolment will be completed in the first 4 years. Read more about this study

Who is it for?
Ages 12 years and older
Conditions the study is for
Haemophilia A, Haemophilia B
What is being tested?
Concizumab
How many people
30 participants
Where
23 sitesJapan
Study dates
2 May 2025to 31 Jan 2031
Phase
Observational
Are there results?
Not yet: the study is under way

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 12 years and older
  • All sexes
  • Child, Adult, Older adult

Study population: Participants with haemophilia A or haemophilia B without inhibitors will be be treated with commercially available Alhemo according to routine clinical practice at the discretion of the treating physician.

Who may be able to join

  • Signed consent obtained before any study-related activities (study-related activities are any procedure related to recording of data according to the protocol).
  • The decision to initiate treatment with commercially available Alhemo has been made by the participant/Legally Acceptable Representative (LAR) and the treating physician before and independently from the decision to include the participant in this study.
  • Male or female, age above or equal to 12 years at the time of signing informed consent.
  • Diagnosis with Haemophilia A (HA) or Haemophilia B (HB).
  • Participant who has never been exposed to concizumab or who starts treatment with concizumab within the past 12 weeks at registration.

Who cannot join

  • Previous participation in this study. Participation is defined as having given informed consent in this study.
  • Treatment with any investigational drug within 30 days prior to baseline (the starting date of Alhemo treatment).
  • Mental incapacity, unwillingness or language barriers precluding adequate understanding or cooperation.
  • A history of hypersensitivity to any ingredients of Alhemo.

Trial locations and contacts

23 sites in 1 country. Contact the study team or a site near you to ask about taking part.

23 sites in 1 country

Japan23 sites
  • Chiba university hospital_Pediatrics

    Chiba, 260-8677

  • National Hospital Organization Awara Hospital_Hematology and Oncology

    Fukui, 910-4272

  • Hoshi General Hospital_Pediatrics

    Fukushima, 963-8501

  • Hyogo Prefectural Amagasaki General Medical Center_Haematology

    Hyōgo, 660-8550

  • St. Marianna University School of Medicine Hospital_Pediatrics

    Kanagawa, 216-8511

  • Saitama Medical Univ. Hospital Saitama medical center_Department of Transfusion Medicine and Cell Therapy

    Kawagoe

  • Miyagi Children's Hospital_Hematology-Oncology

    Miyagi, 989-3126

  • Nagano Children's Hospital_Hematology-Oncology

    Nagano, 399-8288

  • Nagano red cross hospital_Pediatrics

    Nahano, 380-8582

  • Nanbu Medical Center & Children's Medical Center_Pediatric Hematology

    Okinawa, 901-1193

  • Arin Clinic Shonika_Pediatrics

    Okinawa, 901-2132

  • University of the Ryukyus Hospital_Endocrinology and Metabolism, Hematology and Rheumatology

    Okinawa, 901-2725

  • Kansai Medical University Hospital_Pediatrics

    Osaka, 573-1191

  • Saitama Children's Med Centre_Hematology-Oncology

    Saitama, 330-8777

  • Saitama Medical Univ. Hospital Saitama medical center_Department of Transfusion Medicine and Cell Therapy

    Saitama, 350-8550

  • Fukaya Red Cross Hospital_Haematology

    Saitama, 366-0052

  • Matsue red cross hospital_Pediatrics

    Shimane, 690-8506

  • Hamamatsu Medical Center_Pediatrics

    Shizuoka, 432-8580

  • Iwata City Hospital_Haematology

    Shizuoka, 438-8550

  • National Center for Child Health and Development_Hematology

    Tokyo, 157-8535

  • Ogikubo Hospital_Blood Coagulation

    Tokyo, 167-0035

  • Ishiyama Clinic

    Yamagata, 992-0035

  • St. Marianna Univ., Yokohama City Seibu HP, Pediatrics Dept,

    Yokohama-shi, Kanagawa, 241-0811

Other trials in Japan

About this study

Official title: Special Use-results Surveillance on Use of Alhemo in Patients With Haemophilia A or Haemophilia B Without Inhibitors A Multi-centre, Open-label, Non-interventional Post-marketing Study to Investigate the Long-term Safety and Clinical Parameters of Treatment With Alhemo in Patients With Haemophilia A or Haemophilia B Without Inhibitors in Routine Clinical Practice Conditions in Japan

The purpose of the study is to investigate the safety and effectiveness of Alhemo in participants under real-world clinical practice in Japan. Total duration of this study is about 6 years. Participants enrolment will be completed in the first 4 years. The observation period of this study will last for about 2 years for each enrolled participant.

Being tested
Concizumab
Medical subject headings
Hemophilia A, Hemophilia B

What participants receive

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

  • ConcizumabDrug

    Also called Alhemo

    Participants will be treated with commercially available Alhemo according to routine clinical practice at the discretion of the treating physician. Administration will be according to the approved product labelling. The decision to treat a participant with Alhemo is made at the physician's discretion before and independently from this study.

Study groups in NCT06831734
Study groupRoleWhat they receive
ConcizumabParticipants with haemophilia A or haemophilia B without inhibitors will be be treated with commercially available Alhemo according to routine clinical practice at the discretion of the treating physician.
Receives: Drug: Concizumab

What is being measured

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

  1. Number of adverse reaction (AR)

    Count of adverse reaction.

    Measured: From baseline (week 0) to end of study (week 104)

Secondary outcomes (7)
  1. Number of serious adverse reaction (SAR)

    Count of serious adverse reaction.

    Measured: From baseline (week 0) to end of study (week 104)

  2. Number of serious adverse event (SAE)

    Count of serious adverse event.

    Measured: From baseline (week 0) to end of study (week 104)

  3. Number of thromboembolic adverse event (AE)

    Count of thromboembolic adverse event.

    Measured: From baseline (week 0) to end of study (week 104)

  4. Number of shock/anaphylaxis adverse event (AE)

    Count of shock/anaphylaxis adverse event.

    Measured: From baseline (week 0) to end of study (week 104)

  5. Number of treated spontaneous and traumatic bleeding episodes

    Count of treated spontaneous and traumatic bleeding episodes.

    Measured: From baseline (week 0) to end of study (week 104)

  6. Number of treated spontaneous and traumatic target joint bleeding episodes

    Count of treated spontaneous and traumatic target joint bleeding episodes.

    Measured: From baseline (week 0) to end of study (week 104)

  7. Number of all treatment requiring bleeding episodes

    Count of all treatment requiring bleeding episodes.

    Measured: From baseline (week 0) to end of study (week 104)

Timeline

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

  1. First posted18 Feb 2025
  2. Study start2 May 2025
  3. Primary completion31 Jan 2031 (estimated)
  4. Study completion31 Jan 2031 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06831734
Sponsor's protocol ID
NN7415-7690
Other IDs
U1111-1286-2960
Status last verified
Jun 2026
First submitted
12 Feb 2025
Last updated
15 Jun 2026
Results posted
No
Data monitoring committee
No
FDA-regulated device
No
Individual data sharing
Yes: According to the Novo Nordisk disclosure commitment on novonordisk-trials.com

Questions about this trial

What is this clinical trial studying?

An observational study of Haemophilia A, Haemophilia B, run by Novo Nordisk A/S at 23 sites in Japan.

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 5 inclusion and 4 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: enrolling by invitation, as of the sponsor's last update on 15 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 23 sites in Japan. 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.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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?

Number of adverse reaction (AR) (time frame: From baseline (week 0) to end of study (week 104)). 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 15 Jun 2026; AzTrials last refreshed its copy on 26 Oct 2026.

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