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Hemophilia APhase 2/3AFEELNCT06938659

Low Dose Emicizumab vs Low Dose Factor VIII in Prophylaxis in Hemophilia A Patients

A Phase 2/3 study testing Emicizumab Injection and Factor VIII (FVIII) in people with Hemophilia A, run by Dhaka Medical College at 1 site in Bangladesh.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Low dose factor VIII prophylaxis is practiced around the world. Role of standard dose Emicizumab prophylaxis is well established. Emicizumab is an expensive drug. Standard dose Emicizumab prophylaxis is very expensive for hemophilia A patients and troublesome for government to ensure continuous supply. Read more about this study

Who is it for?
Any age
Conditions the study is for
Hemophilia A
What is being tested?
Emicizumab Injection and Factor VIII (FVIII)
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteBangladesh
Study dates
1 Jun 2025to 31 Jul 2026
Phase
Phase 2/3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Severe hemophilia A patient with or without inhibitor to factor VIII.

Who cannot join

  • 1. Severe hemophilia A patient not willing to participate.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Akhil R. Biswas, MBBS,FCPS contact

+8801712290706

akhil.biswas@yahoo.com

Gazi Y. Islam, MBBS, FCPS contact

+8801716715995

yeasin100heam@gmail.com

Bangladesh1 site
  • Dhaka Medical College Hospital

    Dhaka, 1000

Other trials in Bangladesh

About this study

Official title: Comparison of Low Dose Emicizumab and Low Dose Factor VIII as a Prophylaxis in Hemophilia A Patients- a Randomized Control Trial'

Low dose factor VIII prophylaxis is practiced around the world. Role of standard dose Emicizumab prophylaxis is well established. Emicizumab is an expensive drug. Standard dose Emicizumab prophylaxis is very expensive for hemophilia A patients and troublesome for government to ensure continuous supply. This study intends to compare low dose Factor VIII prophylaxis with low dose Emicizumab prophylaxis and compare whether low dose Emicizumab is as effective as low dose Factor VIII prophylaxis. So, it is possible to continue prophylaxis program in hemophilia A patients with a cost-effective way in our country without risking the patient health. Moreover, Emicizumab prophylaxis reduces the chance of developing inhibitor to Factor VIII and it is convenient for administration due to less frequent and subcutaneous administration. 20 severe hemophilia A patients will be selected randomly from interested patients for this study. 6 patients with inhibitor will be randomized in Low dose Emicizumab with Inhibitor group (I) and rest 14 will be randomized by block randomization in Low dose Emicizumab (without inhibitor-WI) and low dose Factor VIII group at 4:10 ratio. Initial loading dose will be given and the participants will be followed up for 6 months. At the end of the study Annualized bleeding rate (ABR), Annualized joint bleeding rate (AJBR), Annualized spontaneous bleeding rate (ASBR), APTT will be compared among the groups. Inhibitor to factor VIII will also be evaluated after six months in Factor VIII group.

Read the detailed description

Selection criteria for the study- Severe hemophilia A patients with or without inhibitor to factor VIII will be eligible to participate in the study. Patients with inhibitor will not be included in factor VII group.

Sample Size: Sample size is determined by availability of drugs rather than any scientific formula. The investigators can provide Emicizumab to 10 patients for 28 weeks as prophylaxis. So, the investigators intend to include 10 patients in each group.

Sampling technique: The investigators will select 20 severe hemophilia A patients randomly from interested patients. The investigators will randomize 6 patients with inhibitor in Low dose Emicizumab with Inhibitor group (I) and rest 14 will be randomized by block randomization in Low dose Emicizumab (without inhibitor-WI) and low dose Factor VIII group at 4:10 ratio Variables to be studied- A. Independent variable

  1. Socio-demographic variables- Age, Educational status, Weight, Occupation
  2. Variables related to Hemophilia- Presence of Inhibitor B. Dependent variable
  3. Main outcome variables- Annualized bleeding rate (ABR), Annualized joint bleeding rate (AJBR), Annualized spontaneous bleeding rate (ASBR), APTT 2. Confounding variables- Development of new inhibitor to factor VIII Patients and/or parents will be thoroughly informed about the study, drugs to be used, risk \& benefits and follow up plan. Their consent for this study will be taken and they will be enrolled in the study. For Participants under 18 years, consent will be obtained from parents or legal guardian. Participants ≥18 years will give his/her own consent. Randomization will be generated by computer.

Dose- Emicizumab 0.8-1.5mg/kg weekly for 4 weeks as loading dose. Then 0.8-1.5mg/kg 4-weekly for 24 weeks. Inj. Emicizumab has 30mg in vail. Dose will be rounded to 30mg, 60 mg or any dose nearest to 1 mg/kg when fractionation of vail is possible.

Factor VIII- 10-15 unit/Kg thrice weekly (for conventional half-life products) or twice weekly (for extended half-life products) for 28 weeks. Inj. Factor VIII is available in 250U, 500U, 750U \& 1,000 IU vail sizes. Dose will be round up to full nearest full vail strength.

Follow Up- Participants in Emicizumab group will visit weekly for first 4 week than once in every 4 week for 24 weeks (Total 28 weeks).

Participants in Factor VIII group will visit twice weekly for 28 weeks. Information of data collection sheet will be collected once in a week.

Patient must attend physically for every dose administration. He will be asked for number of bleeding- traumatic, spontaneous bleeding, joint bleeding, frequency of hospital visit due to hemophilia related problems in between doses and investigate for APTT.

Primary End Point- This study will include 28 weeks follow up of the patients. Each patient will receive 28 weeks prophylaxis. After that period patients will continue prophylaxis if drugs are available but will not be considered for this study. Otherwise, they will receive on demand treatment in our HTC (hemophilia treatment center).

Supportive care and rescue- A Data and Safety Monitoring Board (DSMB) will be formed which will include members suggested by IRB. Any adverse event or serious adverse event (will be delt with proper medical care.

If any patient developed spontaneous or traumatic bleeding episode during prophylaxis, they will be treated with standard dose on demand treatment on priority basis.

Conditions
Hemophilia A
Being tested
Emicizumab Injection, Factor VIII (FVIII)
Keywords
Low dose Factor VIII, Low dose Emicizumab, Prophylaxis, Hemophilia A with inhibitor
Medical subject headings
Hemophilia A

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Emicizumab InjectionDrug

    Also called Hemlibra

    Emicizumab 0.8-1.5mg/kg weekly for 4 weeks as loading dose. Then 0.8-1.5mg/kg 4-weekly for 24 weeks will be used in Emicizumab group-I and Emicizumab Group- WI

  • Factor VIII (FVIII)Drug

    Also called Afstyla, Kovaltry

    10-15 unit/Kg thrice weekly (for conventional half-life products) or twice weekly (for extended half-life products) for 28 weeks. Inj. Factor VIII is available in 250U, 500U, 750U \& 1,000 IU vail sizes. Dose will be round up to full nearest full vail strength.

Study groups in NCT06938659
Study groupRoleWhat they receive
Emicizumab Group- IExperimentalSevere hemophilia A patients with inhibitor
Receives: Drug: Emicizumab Injection
Emicizumab Group- WIExperimentalSevere hemophilia A Patients without inhibitor (Emicizumab Group):
Receives: Drug: Emicizumab Injection
Factor VIII GroupActive comparatorSevere hemophilia A Patients without inhibitor.
Receives: Drug: Factor VIII (FVIII)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean of Annualized bleeding rate (ABR) among the study groups will be compared.

    ABR will be calculated as the number of reported bleeding events divided by 06 (the number of months in the reporting time window) and multiplied by 12. e.g. if a participant total bleeding event are 12 in 6 months, ABR of this patients is 12/6*12=24

    Measured: 06 months

  2. Mean of Annualized joint bleeding rate (AJBR) among the study groups will be compared.

    AJBR will be calculated as the number of reported joint bleeding events divided by 06 (the number of months in the reporting time window) and multiplied by 12. e.g. if a participant Joint Bleeding event is 6 in 6 months than AJBR will be 6/6*12=12.

    Measured: 06 months

  3. Mean of Annualized spontaneous bleeding rate (ASBR) among the study groups will be compared.

    ASBR will be calculated as the number of reported spontaneous bleeding events divided by 06 (the number of months in the reporting time window) and multiplied by 12. e.g. if a participant has total 4 spontaneous bleeding event in six months than ASBR will be 4/6*12= 7.99

    Measured: 06 months

  4. Mean of APTT among the groups will be compared.

    APTT

    Measured: 06 months

Secondary outcomes (1)
  1. Inhibitor to Factor VIII-

    Check for development of inhibitor to Factor VIII in Factor VIII group and emicizumab group without inhibitor.

    Measured: 06 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Apr 2025
  2. Study start1 Jun 2025 (estimated)
  3. Primary completion31 May 2026 (estimated)
  4. Study completion31 Jul 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
we will select 20 severe hemophilia A patients randomly from interested patients. we will randomize 6 patients with inhibitor to factor VIII in Low dose Emicizumab with Inhibitor group (I) and rest 14 will be randomized by block randomization in Low dose Emicizumab (without inhibitor-WI) and low dose Factor VIII group. patients with inhibitor (Emicizumab Group-I): Patients without inhibitor (Emicizumab Group-WI): Patients without inhibitor (Factor VIII Group).
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06938659
Sponsor's protocol ID
ERC-DMC/ECC/2024/215
Acronym
AFEEL
Status last verified
Apr 2025
First submitted
12 Mar 2025
Last updated
22 Apr 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Participants annual Bleeding rate, Factor level, inhibitor status, dose of drugs

Publications

  • Shima M, Hanabusa H, Taki M, Matsushita T, Sato T, Fukutake K, Kasai R, Yoneyama K, Yoshida H, Nogami K. Long-term safety and efficacy of emicizumab in a phase 1/2 study in patients with hemophilia A with or without inhibitors. Blood Adv. 2017 Sep 27;1(22):1891-1899. doi: 10.1182/bloodadvances.2017006684. eCollection 2017 Oct 10.

    PubMed 29296836
  • Young G, Liesner R, Chang T, Sidonio R, Oldenburg J, Jimenez-Yuste V, Mahlangu J, Kruse-Jarres R, Wang M, Uguen M, Doral MY, Wright LY, Schmitt C, Levy GG, Shima M, Mancuso ME. A multicenter, open-label phase 3 study of emicizumab prophylaxis in children with hemophilia A with inhibitors. Blood. 2019 Dec 12;134(24):2127-2138. doi: 10.1182/blood.2019001869.

    PubMed 31697801
  • Xu Y, Wang Y, Wu R, Zheng C, Zhang L, Xu W, Feng X, Wang H, Cao X, He L, Xue T, Jin M, Xie B, Ling J, Sun L, Su R, Cheng H, Fang Y, Poon MC, Liu W, Zhang L, Xue F, Yang R. Reduced doses of emicizumab achieve good efficacy: Results from a national-wide multicentre real-world study in China. Haemophilia. 2024 Jul;30(4):959-969. doi: 10.1111/hae.15062. Epub 2024 Jun 9.

    PubMed 38853005

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Emicizumab Injection and Factor VIII (FVIII) in people with Hemophilia A, run by Dhaka Medical College at 1 site in Bangladesh.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 22 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Bangladesh. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Akhil R. Biswas, MBBS,FCPS (+8801712290706, akhil.biswas@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean of Annualized bleeding rate (ABR) among the study groups will be compared. (time frame: 06 months). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06938659, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Apr 2025.

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