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:
- People who are male and between 18 and 80 years old
- People who were previously enrolled and treated in one of three specific gene therapy clinical trials at Royal Free Hospital: the AGT4HB trial (a Factor IX gene therapy trial), the GO-8 trial (a Factor VIII gene therapy trial), or the FLT180a-01 trial (a Factor IX gene therapy trial, with participants now in a follow-up study called FLT180a-04)
- People whose blood showed some working Factor VIII or Factor IX activity (above 1%) at any point after their gene therapy, along with normal results on certain blood clotting tests
Who may not be able to join:
- People whose platelet count (a measure of clotting cells in the blood) has been recorded below 140 x10⁹/L
- People with any condition that, in the investigator's or sponsor's opinion, would stop them from fully taking part in the study or would affect the ability to assess safety or results
- People with reduced kidney function (where the kidney filtration rate is measured at below 50 ml/min)
- People with a known allergy to iodine-based dye used in certain medical scans given through a vein
- People with a known allergy to local or general anaesthetic
- People with a known reaction to Factor VIII or Factor IX concentrate infusions
- People who have developed antibodies that work against Factor VIII or Factor IX treatments (tested within 14 weeks before a biopsy procedure)
- People who show signs of a bleeding disorder that is not related to Haemophilia A or B
- People who are unable or unwilling to read, understand, and sign a consent form agreeing to take part
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: Paul Batty, MBBS MRCP, Royal Free Hospital NHS Foundation Trust
Phone: 020 7794 0500
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
Analysis of AAV integration in hepatocytes using Target Enrichment Sequencing
Can't join this trial?
Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.