New weekly shot could help control bleeding in hemophilia a
NCT ID NCT04204408
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a new medicine called Mim8 for people with hemophilia A, a condition where blood doesn't clot properly. Mim8 is given as a shot under the skin to help prevent bleeding episodes. The trial included 275 healthy volunteers and people with hemophilia A, with or without inhibitors, and lasted up to 44 months. Results focused on safety and how well the drug works to control bleeding.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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275 people
The number who actually took part.
- Started
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Jan 2020
- Finished
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Oct 2023
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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12 years and older
- Sex
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Male participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Single ascending dose part 1: * Male, aged 18-45 years (both inclusive) at the time of signing informed consent * Considered to be generally healthy based on the medical history, physical examination, and the results of vital signs, electrocardiogram and clinical laboratory tests performed during the screening visit, as judged by the investigator Multiple ascending dose part 2: * Male, aged 12-64 years (both inclusive) at the time of signing informed consent (Germany and Japan have local requirements) * Diagnosis of congenital haemophilia A with FVIII activity below 1% based on medical records Exploratory biomarker cohort: * Male, aged equal to or above 12 years at the time of signing informed consent (Germany and Japan have local requirements) * Diagnosis of congenital haemophilia A with FVIII activity below 1% based on medical recordsv Exclusion Criteria: Part 1: * Factor VIII activity equal to or above 150% at screening * Increased risk of thrombosis, e.g. known history of personal or first degree relative(s) with unprovoked deep vein thrombosis * Any clinical signs or established diagnosis of venous or arterial thromboembolic disease Part 2: * Known congenital or acquired coagulation disorders other than haemophilia A * Increased risk of thrombosis as evaluated by the investigator. E.g. known history of personal or first degree relative(s) with unprovoked deep vein thrombosis with exception of previous catheter-associated thrombosis for which anti-thrombotic treatment is not currently ongoing * Any clinical signs or established diagnosis of venous or arterial thromboembolic disease with exception of previous catheter-associated thrombosis for which anti-thrombotic treatment is not currently ongoing * Advanced atherosclerotic disease (e.g. known history of ischemic heart disease, ischemic stroke) as evaluated by the investigator * Any autoimmune disease that may increase the risk of thrombosis * Receipt of emicizumab or drugs with similar modes of action within 5 half-lives before trial product administration * Ongoing or planned immune tolerance induction therapy Exploratory biomarker cohort: * Known congenital or acquired coagulation disorders other than haemophilia A * Increased risk of thrombosis as evaluated by the investigator. E.g. known history of personal or first degree relative(s) with unprovoked deep vein thrombosis with exception of previous catheter-associated thrombosis for which anti-thrombotic treatment is not currently ongoing * Any clinical signs or established diagnosis of venous or arterial thromboembolic disease with exception of previous catheter-associated thrombosis for which anti-thrombotic treatment is not currently ongoing * Advanced atherosclerotic disease (e.g. known history of ischemic heart disease, ischemic stroke) as evaluated by the investigator * Any autoimmune disease that may increase the risk of thrombosis * Ongoing or planned immune tolerance induction therapy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Arizona H&T Phoenix Child Hosp
Phoenix, Arizona, 85016-7710, United States
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Charité - Campus Charité Mitte - Charité Research Organisation GmbH
Berlin, 10117, Germany
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Charlotte Maxeke Johannesburg Academic Hospital
Parktown, Johannesburg, Gauteng, 2193, South Africa
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Children's Healthcare Atlanta
Atlanta, Georgia, 30322, United States
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Children's Hospital Los Angeles - Endocrinology
Los Angeles, California, 90027, United States
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Children's Hospital of Michigan
Detroit, Michigan, 48201, United States
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Cincinnati Child's Hsp Med Ctr
Cincinnati, Ohio, 45229, United States
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Dayton Children Hemostati Ctr
Dayton, Ohio, 45404, United States
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Ege Üniversitesi Hastanesi- Hematoloji
Izmir, 35100, Turkey (Türkiye)
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Hacettepe Üniversitesi Hastanesi- Endokrinoloji
Ankara, 06230, Turkey (Türkiye)
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Hospital La Fe - Hemostasia y Trombosis
Valencia, 46026, Spain
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Hospital Regional Universitario de Málaga
Málaga, 29010, Spain
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Hospital Universitario La Paz
Madrid, 28046, Spain
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Instytut Hematologii i Transfuzjologii
Warsaw, Masovian Voivodeship, 02-776, Poland
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Istituto di Medicina Int. A. Bianchi Bonomi Univ. Milano
Milan, MI, 20124, Italy
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Michigan State University
East Lansing, Michigan, 48823, United States
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Nagoya University Hospital_Blood Transfusion
Aichi, 466-8560, Japan
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Nara Medical University Hospital_Pediatrics
Nara, 634-8522, Japan
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Nationwide Children's Hospital
Columbus, Ohio, 43205, United States
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Oxford Haemophilia Comprehensive Care Center
Oxford, OX3 7LJ, United Kingdom
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Penn State MS Hershey Med Ctr
Hershey, Pennsylvania, 17033-2360, United States
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Pietersburg Hospital
Polokwane, Limpopo, 0699, South Africa
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Policlinico Umberto I Sezione Ematologia
Roma, 00161, Italy
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Royal Free Haemophilia Comprehensive Care Centre
London, NW3 2QG, United Kingdom
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Rush University Med. Cntr
Chicago, Illinois, 60612, United States
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St. Jude Clinic Novant Health
Charlotte, North Carolina, 28204, United States
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Szpital Uniwersytecki, Oddzial Kliniczny Hematologii
Krakow, 30-688, Poland
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Tokyo Medical Univ. Hospital_Laboratory Medicine
Tokyo, 160-0023, Japan
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Trakya Üniversitesi Tıp Fakültesi Hastanesi- Kardiyoloji
Edirne, 22030, Turkey (Türkiye)
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UMHAT Tsaritsa Yoanna - ISUL EAD, Pediatric clinical hematology and oncology
Sofia, 1527, Bulgaria
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University Of Michigan
Ann Arbor, Michigan, 48109, United States
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University of Iowa_Iowa City
Iowa City, Iowa, 52242, United States
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Universitätsklinik für Hämatologie
Bern, 3010, Switzerland
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Universitätsklinik für Innere Medizin V
Innsbruck, 6020, Austria
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Universitätsklinik für Innere Medizin V
Innsbruck, A 6020, Austria
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Universitätsspital Zürich - Klinik für Medizinische Onkologie und Hämatologie
Zurich, 8091, Switzerland
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Uniwersytecki Szpital Kliniczny W Poznaniu
Poznan, Greater Poland Voivodeship, 60-569, Poland
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Vanderbilt Hemostasis Thrombosis Clinic
Nashville, Tennessee, 37232, United States
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Versiti, CCBD
Milwaukee, Wisconsin, 53226, United States
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Vivantes Netzwerk für Gesundheit GmbH - Vivantes Klinikum im Friedrichshain
Berlin, 10249, Germany
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