CClinicalTrials.gg
Enrolling by invitationNCT06285071Updated Jun 15, 2026

Post-Marketing Surveillance (All Case Surveillance) on Treatment With Alhemo® in Patients With Haemophilia A or Haemophilia B With Inhibitors

An observational study in Haemophilia A and Haemophilia B, sponsored by Novo Nordisk A/S. Enrolling by invitation at 11 sites in Japan. Per ClinicalTrials.gov, last updated 2026-06-15.

Sponsored by Novo Nordisk A/S · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
23
Sex
All
01

Study summary

The purpose of the study is to investigate the safety and effectiveness of Alhemo® in all participants under real-world clinical practice in Japan. Participants will get Alhemo® as prescribed by the study doctor. The study will last for about 2 years.

02

Conditions studied

  • Haemophilia A
  • Haemophilia B
03

In context

Hemophilia A

866 studies on the registry are indexed under Hemophilia A; 137 are open to participants now.

This study's planned enrollment of 23 is below the median of 80 across 314 observational studies indexed under Hemophilia A.

Browse Hemophilia A studies →

Lead sponsor

Novo Nordisk A/S is the lead sponsor of 1,370 studies on the registry; 102 are open to participants now.

Of its 198 completed or terminated interventional studies of FDA-regulated products, 94 (47%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Participants with haemophilia A or haemophilia B with inhibitors will be treated with commercially available concizumab according to routine clinical practice at the discretion of the treating physician.

Inclusion criteria

  • 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 patient/LAR and the treating physician before and independently from the decision to include the patient in this study
  • Male or female patients, regardless of age
  • Diagnosis with HAwI/HBwI

Exclusion criteria

Exclusion Criteria:

- Previous participation in this study. Participation is defined as having given informed consent in this study

05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
23 participants (estimated)
Patient registry
No

Groups and cohorts

  • Concizumab

    Participants with haemophilia A or haemophilia B with inhibitors will be treated with commercially available Alhemo (Concizumab) according to routine clinical practice at the discretion of the treating physician. Recruitment will be completed after 4.5 years from the launch of Concizumab. The observation period for each participant is 2 years. Total duration of this study is about 6.5 years.

    Drug: Concizumab

Interventions

  • DrugConcizumab

    Participants will be treated with commercially available Alhemo (Concizumab) according to routine clinical practice at the discretion of the treating physician. The decision to initiate treatment with commercially available Concizumab 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.

    Also known as: Alhemo

06

What researchers measure

Primary outcomes

  1. Number of adverse reaction (AR)

    Measured as count of ARs.

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

Secondary outcomes

  1. Number of serious adverse reaction (SAR)

    Measured as count of SARs.

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

  2. Number of serious adverse event (SAE)

    Measured as count of SAEs.

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

  3. Number of thromboembolic adverse event (AE)

    Measured as count of thromboembolic AEs.

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

  4. Number of shock/anaphylaxis AE

    Measured as count of shock/anaphylaxis AEs.

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

  5. Number of treated spontaneous and traumatic bleeding episodes

    Measured as count of bleeding episodes.

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

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

    Measured as count of bleeding episodes.

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

  7. Number of all treatment requiring bleeding episode

    Measured as count of bleeding episodes.

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

07

Study locations

11 sites
  • Novo Nordisk Investigational Site
    Toshima City, Tokyo, Japan
  • Mutsu general hospital_Pediatrics
    Aomori, 035-8601, Japan
  • Kyushu university hospital_Pediatrics
    Fukuoka, 812-8582, Japan
  • Sapporo Tokushukai Hospital_Pediatrics
    Hokkaido, 004-0041, Japan
  • Kagoshima City Hospital_Pediatrics
    Kagoshima, 890-8760, Japan
  • St. Marianna University School of Medicine Hospital_Pediatrics
    Kanagawa, 216-8511, Japan
  • Hospital of the University of Occupational And Environmental Health Japan_Pediatrics
    Kitakyusyu-shi, Fukuoka, 807 8555, Japan
  • Nanbu Medical Center & Children's Medical Center_Hematology and Oncology
    Okinawa, 901-1193, Japan
  • University of the Ryukyus Hospital_Endocrinology and Metabolism, Hematology and Rheumatology
    Okinawa, 901-2725, Japan
  • Tokyo Medical University Hospital
    Tokyo, 160-0023, Japan
  • Ogikubo Hospital_Blood Coagulation
    Tokyo, 167-0035, Japan
08

References and documents

Individual participant data

Plan to share: Yes — According to the Novo Nordisk disclosure commitment on novonordisk-trials.com.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06285071
Lead sponsor
Novo Nordisk A/S
Responsible party
Sponsor
First posted
Feb 29, 2024
Start date
Aug 8, 2024
Primary completion
Apr 30, 2030 (estimated)
Completion
Apr 30, 2030 (estimated)
Last update
Jun 15, 2026

Study contacts

Clinical Transparency dept. 2834
study director · Novo Nordisk A/S
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

No contact was published for this record. The registry link below has the sponsor’s details.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion