Recent Updates
Recently added Catalysts

Concizumab

Phase 3

Haemophilia A With Inhibitors | Small molecule | Hematology |Novo Nordisk A/S|Last Updated: Aug 13, 2026

Target and mechanism

Molecular targetTFPI
Target classInhibitor
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedCONTROLLEDDMC
Total Trials1
Total Enrollment134

FDA Designations

No designations recorded

Clinical trial landscape

Concizumab · 6 trials · 8 indications

Phase 3 3Phase 2 2Phase 1 1
NCT05135559A Research Study on How Well Concizumab Works for You if You Have Haemophilia A or B With or Without InhibitorsHaemophilia A and B With and Without Inhibitors
ACTIVE NOT_RECRUITING153 Analytics
NCT04082429Research Study to Look at How Well the Drug Concizumab Works in Your Body if You Have Haemophilia Without InhibitorsHaemophilia A Without Inhibitors
ACTIVE NOT_RECRUITING156 Analytics
NCT04083781Research Study to Look at How Well the Drug Concizumab Works in Your Body if You Have Haemophilia With InhibitorsHaemophilia A With Inhibitors
ACTIVE NOT_RECRUITING134 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Research Study on How Well Concizumab Works for You if You Have Haemophilia A or B With or Without Inhibitors
Haemophilia A and B With and Without InhibitorsUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Research Study to Look at How Well the Drug Concizumab Works in Your Body if You Have Haemophilia Without Inhibitors
Haemophilia A Without InhibitorsUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Research Study to Look at How Well the Drug Concizumab Works in Your Body if You Have Haemophilia With Inhibitors
Haemophilia A With InhibitorsUnlock trial analytics

Study Endpoints

Primary Endpoints

For inhibitor patients with at least 26 weeks on-demand treatment during the last 52 weeks prior enrolment: Number of treated spontaneous and traumatic bleeding episodes
From start of treatment (week 0) up until the primary analysis cut-off (at least 32 weeks)

Count of episode(s)

For non-inhibitor patients treated on demand during at least the last 52 weeks prior enrolment: Number of treated spontaneous and traumatic bleeding episodes
From start of treatment (week 0) up until the primary analysis cut-off (at least 32 weeks)

Count of episode(s)

Haemophilia A Participants Without Inhibitors: Rate of Treated Spontaneous and Traumatic Bleeding Episodes
On demand (arm 1): From week 0 up until start of concizumab treatment (week 24); Concizumab (arm 2): From week 0 up until the confirmatory analyses cut-off

Rate of treated spontaneous and traumatic bleeding episodes for haemophilia A participants without inhibitors is presented. The observation period used for reporting this endpoint is on-treatment without ancillary therapy excluding data before restart (OTwoATexBR). It is defined as the time period after the restart where participants are treated by concizumab treatment or are treated by on-demand treatment and additionally have not used factor-containing products not related to treatment of a bleeding episode. The data is reported in the terms of annualised bleeding rate (ABR). Week 0 is defined as time of randomisation to on-demand administration after the pause or time of start of the new concizumab dosing regimen. Confirmatory analyses cut-off was defined as when all participants on no PPX (arm 1) had completed the 24-week visit or withdrawn and all participants on concizumab PPX (in arms 2 and 4) had completed the 32-week visit or withdrawn.

Haemophilia B Participants Without Inhibitors: Rate of Treated Spontaneous and Traumatic Bleeding Episodes
On demand (arm 1): From week 0 up until start of concizumab treatment (week 24); Concizumab (arm 2): From week 0 up until the confirmatory analyses cut-off

Rate of treated spontaneous and traumatic bleeding episodes for haemophilia B participants without inhibitors is presented. The observation period used for reporting this endpoint is OTwoATexBR. It is defined as the time period after the restart where participants are treated by concizumab treatment or are treated by on-demand treatment and additionally have not used factor-containing products not related to treatment of a bleeding episode. The data is reported in the terms of ABR. Week 0 is defined as time of randomisation to on-demand administration after the pause or time of start of the new concizumab dosing regimen. Confirmatory analyses cut-off was defined as when all participants on no PPX (arm 1) had completed the 24-week visit or withdrawn and all participants on concizumab PPX (in arms 2 and 4) had completed the 32-week visit or withdrawn.

Rate of Treated Spontaneous and Traumatic Bleeding Episodes
On demand (arm 1): From week 0 up until start of concizumab treatment (at least 24 weeks) Concizumab (arm 2): From week 0 up until the primary analysis cut-off (at least 32 weeks)

Rate of treated spontaneous and traumatic bleeding episodes is presented. The observation period used for reporting this endpoint is on-treatment without ancillary therapy excl. data on initial regimen for participants exposed to both regimens (OTwoATexIR). It is defined as the time period where participants are treated by either the new concizumab dosing regimen or the initial concizumab dosing regimen (only included if not exposed to the new concizumab dosing regimen) or are treated by on-demand treatment and additionally have not used factor-containing products not related to treatment of a bleed during any of the cases. The data is reported in the terms of annualised bleeding rate (ABR). Week 0 is defined as time of randomisation to on-demand administration or time of start of the new concizumab dosing regimen.

The Number of Bleeding Episodes During at Least 24 Weeks From Treatment Onset
During at least 24 weeks from treatment onset

The number of bleeding episodes that were treated during at least 24 weeks from treatment onset are presented. The data is presented while on last dose level when the bleed occurred.

The Number of Bleeding Episodes
During at least 24 weeks from treatment onset (week 0)

The number of bleeding episodes that were treated during at least 24 weeks from treatment onset (week 0) are presented.

Number of adverse events (AEs)
From first trial drug administration (day 1) to 11 weeks after the first trial product administration

Secondary Endpoints

For inhibitor patients with at least 26 weeks on-demand treatment during the last 52 weeks prior enrolment: Number of all bleeding episodes (spontaneous and traumatic)
From start of treatment (week 0) up until the primary analysis cut-off (at least 32 weeks)
For inhibitor patients with at least 26 weeks on-demand treatment during the last 52 weeks prior enrolment: Number of treated spontaneous bleeding episodes
From start of treatment (week 0) up until the primary analysis cut-off (at least 32 weeks)
For inhibitor patients with at least 26 weeks on-demand treatment during the last 52 weeks prior enrolment: Number of treated joint bleeding episodes
From start of treatment (week 0) up until the primary analysis cut-off (at least 32 weeks)
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Concizumab-naïve patientsEXPERIMENTALConcizumab-naïve participants below 12 years of age at the time of consent/assent
Patients coming from compassionate useEXPERIMENTALPatients previously treated with concizumab via compassionate use, either on an individual patient basis or through the concizumab compassionate use programme NN7415-4807
Arm 1: No prophylaxis (PPX)EXPERIMENTALHaemophilia A (HA) and haemophilia B (HB) patients, previously treated on-demand, will be randomised 1:2 to no prophylaxis versus concizumab prophylaxis. In the extension phase, this group will receive treatment with concizumab.
Arm 2: Concizumab prophylaxisEXPERIMENTALHA and HB patients, previously treated on-demand, will be randomised 1:2 to no prophylaxis versus concizumab prophylaxis.
Arm 3: Concizumab prophylaxisEXPERIMENTALThe HA patients enrolled into the concizumab phase 2 trial NN7415-4255 (explorer 5) will be offered enrolment into this arm.
Arm 4: Concizumab prophylaxisEXPERIMENTALArm 4 will include patients previously on prophylaxis with factor products with a minimum of 24 weeks observation in NN7415-4322 (explorer 6) (at least 30 HA and 30 HB patients). In addition, arm 4 will also include: 1) Patients who were randomised to arms 1 and 2 before the treatment pause. 2) HA patients who were in NN7415-4255 (explorer 5) at the time of the treatment pause, and who have now completed explorer 5. 3) On demand patients included after arms 1 and 2 are closed.
Arm 1: No prophylaxisEXPERIMENTALHaemophilia A with inhibitors (HAwI) and haemophilia B with inhibitors (HBwI) patients, previously treated on-demand, will be randomised 1:2 to no prophylaxis versus concizumab prophylaxis. In the extension part, patients in arm 1 will receive daily concizumab subcutaneous (s.c., under the skin) injections.
ConcizumabEXPERIMENTALDaily administration of concizumab to both on-demand and prophylaxis patients
Eptacog alfa and concizumabACTIVE_COMPARATOREptacog alfa administered on-demand during bleeding episodes as the only intervention during the main phase. Concizumab given in the extension phase
PlaceboPLACEBO_COMPARATOR -

Interventions

NameTypeDescription
ConcizumabDRUGParticipants in Arm 1 will be assigned to concizumab prophylaxis starting with a loading dose on treatment day 0 followed by daily injections of an individual maintenance dose. Participants in Arm 2 will be assigned to concizumab prophylaxis with daily injections of an individual maintenance dose.
Turoctocog alfaDRUGBreakthrough bleeding episodes will be treated by the patients at home with turoctocog alfa at the discretion of the study doctor, who will also choose dose levels
Eptacog alfaDRUGA single dose of 90 μg/kg eptacog alfa one week after dosing with concizumab. On-demand treatment during bleeding episodes in both treatment arms
placeboDRUGAdministered subcutaneously (s.c., under the skin)
Unlock Study Design Details

Eligibility Criteria

Age Range12 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites91

Inclusion Criteria: * Informed consent/assent obtained before any study-related activities. Study-related activities are any procedures that are carried out as part of the study, including activities to determine suitability for the study. * Diagnosis of congenital severe haemophilia A (FVIII below...

Countries:United StatesAlgeriaBosnia and HerzegovinaBulgariaCanadaEstoniaFranceGreeceIndiaItalyJapanLebanonLithuaniaMalaysiaNorth MacedoniaNorwayPolandRomaniaSouth AfricaSpainSwedenThailandTurkey (Türkiye)United KingdomAustraliaCroatiaDenmarkGermanyHungaryIsraelMexicoPortugalRussiaSerbiaSlovakiaSouth KoreaSwitzerlandUkraineAustriaCzechiaNetherlands
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWAug 14, 2026NCT04082429lastUpdatePostDate: changed
LOWAug 14, 2026NCT05135559lastUpdatePostDate: changed
LOWAug 14, 2026NCT04082429lastUpdatePostDate: changed
LOWAug 14, 2026NCT05135559lastUpdatePostDate: changed
LOWAug 14, 2026NCT04082429lastUpdatePostDate: changed
LOWAug 14, 2026NCT05135559lastUpdatePostDate: changed
LOWJun 18, 2026NCT05135559lastUpdatePostDate: changed
LOWJun 18, 2026NCT05135559lastUpdatePostDate: changed
LOWJun 18, 2026NCT05135559lastUpdatePostDate: changed
LOWJun 12, 2026NCT04082429lastUpdatePostDate: changed
LOWJun 12, 2026NCT04083781lastUpdatePostDate: changed
LOWJun 12, 2026NCT04082429lastUpdatePostDate: changed
LOWJun 12, 2026NCT04083781lastUpdatePostDate: changed

Frequently asked questions about Concizumab

What is Concizumab used for?

Concizumab is an investigational small molecule being developed for haemophilia A and B, with and without inhibitors, as well as for haemostasis and congenital bleeding disorders. It is being studied for prophylactic use in patients with severe haemophilia A without inhibitors and in haemophilia patients with or without inhibitors.

What does Concizumab target?

Concizumab targets TFPI, or tissue factor pathway inhibitor, and acts as an inhibitor of this target. By inhibiting TFPI, the drug is designed to promote haemostasis in patients with haemophilia. This mechanism is being evaluated in clinical trials for haemophilia A and B with and without inhibitors.

Who makes Concizumab?

Concizumab is being developed by Novo Nordisk A/S, a pharmaceutical company listed on the stock exchange under the ticker NVO. The company is conducting clinical trials to evaluate the safety and efficacy of Concizumab in patients with haemophilia and related bleeding disorders.

What phase is Concizumab in?

Concizumab is in Phase 3 clinical development. It has completed a Phase 2 trial and is currently being evaluated in multiple Phase 3 trials for haemophilia A and B, with and without inhibitors. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is Concizumab in?

Concizumab is being studied in several clinical trials, including NCT03196297, a completed Phase 2 trial in severe haemophilia A without inhibitors, and NCT04082429, NCT04083781, and NCT05135559, which are active Phase 3 trials in haemophilia A and B with and without inhibitors. These trials are enrolling male patients aged 12 years and older.

Is Concizumab the same as any other drug?

Concizumab is not known to be the same as any other drug. It is a distinct investigational small molecule targeting TFPI, developed by Novo Nordisk. No alternative names for Concizumab have been reported in the clinical trial information available.