Table of contents
- Trial overview
- Study design and phase
- Who can participate
- What is being measured
- Why the study has parts A, B, and C
- What the trial may help researchers learn
Trial overview
The clinical trial NCT06211634 is studying Hmb-001 in people with Glanzmann Thrombasthenia, a rare bleeding disorder.[1] The study is authorised and plans to enroll 41 participants.[1]
This trial is interventional, which means participants receive the study treatment so researchers can observe what happens.[1] The treatment is given by subcutaneous administration, meaning it is given under the skin.[1]
Study design and phase
This is a Phase 1/2 trial.[1] Phase 1 studies mainly focus on safety and tolerability, while Phase 2 studies also look for early signs that a treatment may help.[1]
The study has three parts: Part A, Part B, and Part C.[1] Part A is used to determine safe dose levels and dosing intervals for later parts of the study.[1]
Who can participate
The trial is designed for participants with Glanzmann Thrombasthenia.[1] The source data does not list all eligibility rules, so the full entry criteria are not shown here.[1]
In studies like this, eligibility usually depends on the study’s detailed rules, which are checked by the research team.[1]
What is being measured
The main safety checks include the number of treatment-emergent adverse events, which are new or worsening problems that happen after treatment starts.[1] Researchers also track changes in physical examinations, vital signs, clinical laboratory tests, and ECG results, which measure the heart’s electrical activity.[1]
For Parts B and C, the study also looks at early signs of benefit on bleeding.[1] These measures include the annualized treated bleed rate and the annualized bleed rate, which estimate how often bleeding happens over one year.[1]
The brief study summary also says the trial will estimate the preliminary prophylactic effect of Hmb-001 on bleeding frequency and bleeding severity.[1] “Prophylactic” means used to help prevent bleeding episodes before they happen.[1]
Why the study has parts A, B, and C
Part A is the first step and is focused on finding the dose level or levels and dosing interval or intervals to test later.[1] This helps researchers choose a study plan for the next parts of the trial.[1]
Parts B and C then repeat dosing to confirm the safety and tolerability profile of Hmb-001.[1] These parts also look for early signs that the treatment may lower bleeding frequency and bleeding severity.[1]
What the trial may help researchers learn
This study is designed to answer practical questions about Hmb-001 in a rare bleeding disorder, not to give a final answer about long-term benefit.[1] The main goals are to see whether the treatment can be given safely, how it behaves in the body, and whether it shows early signs of helping with bleeding.[1]
Because the trial is still early, the results will mainly help guide future research rather than prove how well the treatment works on its own.[1]



