Phase 4 Haemophilia Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- You have signed (or a parent/guardian has signed) a consent form agreeing to take part in the study
- You are male
- You have been diagnosed with mild congenital hemophilia A, meaning your body produces between 5% and 30% of the normal amount of a clotting protein called Factor VIII
- You have never had, and do not currently have, antibodies (called "inhibitors") that fight against Factor VIII treatment
- You have had any number of previous exposures to Factor VIII treatment, including those who have never been treated before
- Your Body Mass Index (BMI) is below 30
- You are between 5 and 45 years old
- You have medical records documenting your bleeding episodes, treatments used, and outcomes for the 12 months before joining the study
- You are willing and able to attend scheduled appointments, follow the study plan, keep a bleeding diary, complete health questionnaires, and use activity tracking tools provided by the study
- You are willing to take part in a medication test using a nasal spray called Stimate (DDAVP/desmopressin), unless you have previously had a bad reaction to it or it has been shown not to work well for you (confirm with trial site)
- Your liver is working well enough, based on blood test results, and you do not have signs of serious liver scarring (cirrhosis)
- Your blood cell counts and blood clotting levels are within an acceptable range, based on blood tests
- Your kidneys are working well enough, based on blood test results
Who may not be able to join:
- You have any bleeding disorder other than mild hemophilia A, or you have an additional bleeding disorder on top of your hemophilia A
- You currently have, or have ever had, inhibitor antibodies that work against Factor VIII treatment
- You are female
- You have a history of heart disease, are considered at high risk of a cardiovascular event (such as a heart attack or stroke) within the next 10 years, or have a history of reduced blood flow to the heart
- You are considered by the study doctor to be at high risk of a serious condition affecting small blood vessels, called TMA, based on your own or your family's medical history
- You have a history of illicit drug or alcohol misuse, either by your own report or in the study doctor's judgement
- You are currently being treated for a blood clot condition, or have been treated for one in the past 12 months, or show signs of having a blood clot (with some exceptions — confirm with trial site)
- You have other health conditions, such as certain immune system diseases, that may increase your risk of bleeding or blood clots
- You have previously had a significant allergic reaction to a type of medication called a monoclonal antibody, or to any ingredient in the study drug Hemlibra (emicizumab)
- You have HIV with a CD4 immune cell count below 200 cells per microlitre (people with HIV and a CD4 count of 200 or above may still be eligible)
- You are currently using, or plan to use during the study, medications that affect the immune system (such as interferon), not including HIV antiretroviral therapy
- You have another disease, condition, or are taking another medication that the study doctor believes could interfere with the study or put you at additional risk
- You have previously taken Hemlibra (emicizumab) as part of another research study, or have recently taken any other experimental drug related to hemophilia or other conditions (specific time limits apply — confirm with trial site)
- The study doctor does not think you will be able to follow the study requirements
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Amy D Shapiro, MD, Indiana Hemophilia &Thrombosis Center, Inc.
Phone: 3178710000
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Interaction of Hemlibra (emicizumab) binding with endogenous altered FVIII protein in an individual with mild hemophilia A and the combined effect on thrombin generation and hemostatic characteristics
Can't join this trial?
Data last synced from ClinicalTrials.gov: 27 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.