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CompletedNCT04723693EmiandMeUpdated Aug 19, 2024Results posted

An Exploration of the Impact of Emicizumab on the Lives of People With Haemophilia and Inhibitors and Their Families

An observational study in Hemophilia A With Inhibitor, sponsored by Haemnet. Completed at 1 site in United Kingdom. Open to male participants aged 8 Years to 100 Years. Per ClinicalTrials.gov, last updated 2024-08-19.

Sponsored by Haemnet · Observational

Study type
Observational
Model
Family-based
Time perspective
Prospective
Enrollment
30
Ages
8 Years to 100 Years
Sex
Male
01

Study summary

This study aims to examine the real-life experience and impact of using emicizumab in a cohort of patients with haemophilia and inhibitors, who were prescribed emicizumab as part of the early access to medicine schema (EAMS),those who have been in clinical trials and those now receiving emicizumab as part of routine haemophilia care.

The Investigators also intend to capture the impact of emicizumab use on the lives of close family members (parents/carers/children/partners/siblings). Each participant and his family members will be deemed a study 'dyad'.

This is a prospective, observational cohort qualitative research study to be conducted among patients using emicizumab in routine clinical practice.

The study is designed to allow English-speaking patients and their families to tell their own life stories through narrative accounts. The narratives represent a true sharing of experiences and therefore offers insight into how these patients and families cope with haemophilia.

Read the detailed description

Emicizumab offers patients protection from bleeding with fewer injections, this should reduce treatment burden. While patient expectation is high (as evidenced by the conversations on UK haemophilia social media sites) there are risks that patients may forget to treat and thus experience bleeds. During clinical trials participants have been monitored closely and, through questionnaire completion, have described improvement in quality of life [Mancuso et al, 2018, Oldenburg et al 2019].

What is also apparent to clinical teams is the dramatic change to life experience of not just the patient but his family - the ability to travel, to plan attending events knowing that bleeds will not occur, even potentially to have another child because of the reduction in treatment burden, particularly the time needed for treatment and rehabilitation.

This therapy represents a substantial shift in the entire life experience of living with and managing haemophilia with inhibitors. As such, there is a need to look beyond the quantitative data collected in clinical trials and to assess the real impact of therapy on the everyday lives of patients and their families, gathered using qualitative research techniques.

Emicizumab has been available in the UK in clinical trials and as part of an Early Access to Medicines Scheme (EAMS) for non-trial eligible patients since spring 2018. It was recently licensed in the UK and is now available for routine clinical care for any person with haemophilia A and an inhibitor.

We hypothesise that patients and their carers/families will be excited about this new treatment option and that for most, if not all, the promise of improved care and quality of life will be a reality.

02

Conditions studied

  • Hemophilia A With Inhibitor

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Keywords

  • Haemophilia, Quality of Life
03

In context

Hemophilia A

866 studies on the registry are indexed under Hemophilia A; 137 are open to participants now.

This study's enrollment of 30 is below the median of 80 across 314 observational studies indexed under Hemophilia A.

Browse Hemophilia A studies →

Lead sponsor

Haemnet is the lead sponsor of 5 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
8 Years to 100 Years
Sexes eligible
Male
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Male participants with Hameophilia A and inhibitors currently on emicizumab prophylaxis and a member of their family

Inclusion criteria

  • Males
  • A diagnosis of Haemophilia A with inhibitors
  • Using emicizumab (prescribed by treating clinicians) in usual clinical care.

Exclusion criteria

Exclusion Criteria:

  • No history of a Factor VIII inhibitor
  • Not currently being treated with emicizumab,
  • Does not speak English (for the interviews)
  • Does not consent to take part.
05

Study design

Observational model
Family-based
Time perspective
Prospective
Enrollment
30 participants (actual)
Patient registry
No

Groups and cohorts

  • individuals With Haemophilia A and with inhibitors on emicizumab

    Qualitative interviews

    Other: Qualitative Interview

Interventions

  • OtherQualitative Interview

    A single one hour semi structured qualitative interview

06

What researchers measure

Primary outcomes

  1. Reduction in the Burden of the Condition Including Treatment Burden, Bleed Frequency, Pain, Control, Freedom and Missed Opportunities)

    To capture the individual participant's and his family's experience of using emicizumab for haemophilia inhibitor therapy and see if there is any reduction in the burden of the condition.

    Time frame: Each participant & family member will take part in a 1 hour semi structured qualitative interview where experiences of his condition, previous treatment & current treatment with emicizumab will be discussed & thematically analysed and reported.

Secondary outcomes

  1. Treatment Satisfaction (Do the Participants and Their Family Feel That the Change in Treatment Improved Their Condition Control and in What Ways)

    To describe patient satisfaction with injections including frequency and numbers of injections, how to remember treatment dates, treatment comfort, bleed rate post switching.

    Time frame: Each participant & family member will take part in a 1 hour semi structured qualitative interview where experiences of his condition, previous treatment & current treatment with emicizumab will be discussed & thematically analysed and reported.

  2. Treatment Expectations

    To understand user's expectations of emicizumab and how they see future haemophilia care (less frequent injections, impact on home storage, number of bleeds, reduced hospitalisations etc).

    Time frame: Each participant & family member will take part in a 1 hour semi structured qualitative interview where experiences of his condition, previous treatment & current treatment with emicizumab will be discussed & thematically analysed and reported.

  3. Treatment Impact

    To describe the impact of the change in treatment on the extended family

    Time frame: Each participant & family member will take part in a 1 hour semi structured qualitative interview where experiences of his condition, previous treatment & current treatment with emicizumab will be discussed & thematically analysed and reported.

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Results

Posted Aug 19, 2024

Participant flow

Study participants will be people with inhibitors using emicizumab (prescribed by treating clinicians) in usual clinical care. Family members of participants will also be included.

Participant flow — Overall Study
MilestoneIndividuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members
Started30
Completed28
Not completed2
Withdrew: Withdrawal by subject2

Outcome measures

PrimaryReduction in the Burden of the Condition Including Treatment Burden, Bleed Frequency, Pain, Control, Freedom and Missed Opportunities)

To capture the individual participant's and his family's experience of using emicizumab for haemophilia inhibitor therapy and see if there is any reduction in the burden of the condition.

Time frame:
Each participant & family member will take part in a 1 hour semi structured qualitative interview where experiences of his condition, previous treatment & current treatment with emicizumab will be discussed & thematically analysed and reported.
Reported as:
Number · participants
Reduction in the Burden of the Condition Including Treatment Burden, Bleed Frequency, Pain, Control, Freedom and Missed Opportunities)
participantsIndividuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members
Bleeds19
Pain10
Treatment Burden12
Control9
Freedom9
Missed Opperyunities2
SecondaryTreatment Satisfaction (Do the Participants and Their Family Feel That the Change in Treatment Improved Their Condition Control and in What Ways)

To describe patient satisfaction with injections including frequency and numbers of injections, how to remember treatment dates, treatment comfort, bleed rate post switching.

Time frame:
Each participant & family member will take part in a 1 hour semi structured qualitative interview where experiences of his condition, previous treatment & current treatment with emicizumab will be discussed & thematically analysed and reported.
Reported as:
Number · participants
Treatment Satisfaction (Do the Participants and Their Family Feel That the Change in Treatment Improved Their Condition Control and in What Ways)
participantsIndividuals With Haemophilia A and With Inhibitors on Emicizumab
Treatment Burden9
Control9
Freedom9
SecondaryTreatment Expectations

To understand user's expectations of emicizumab and how they see future haemophilia care (less frequent injections, impact on home storage, number of bleeds, reduced hospitalisations etc).

Time frame:
Each participant & family member will take part in a 1 hour semi structured qualitative interview where experiences of his condition, previous treatment & current treatment with emicizumab will be discussed & thematically analysed and reported.
Reported as:
Number · participants
Treatment Expectations
participantsIndividuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members
Increased sense of opportunity on new treatment26
No improvement in opportunities2
Statistical analysis
  • Individuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members ·
SecondaryTreatment Impact

To describe the impact of the change in treatment on the extended family

Time frame:
Each participant & family member will take part in a 1 hour semi structured qualitative interview where experiences of his condition, previous treatment & current treatment with emicizumab will be discussed & thematically analysed and reported.
Reported as:
Number · participants
Treatment Impact
participantsIndividuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members
Increased control6
Increased freedom6
Statistical analysis
  • Individuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members ·

Adverse events

Collected over Over the course of the 1 hour interview. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Individuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members0/28 (0%)0/28 (0%)0/28 (0%)

Baseline characteristics

16 people with haemophilia and inhibitors and 12 family members

Age, Categorical
Age, Categorical(Participants)Individuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members
<=18 years9
Between 18 and 65 years19
>=65 years0
Sex: Female, Male
Sex: Female, Male(Participants)Individuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members
Female12
Male16
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Individuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members
Region of Enrollment
Region of Enrollment(participants)Individuals With Haemophilia A and With Inhibitors on Emicizumab and Family Members
United Kingdom28
08

Study locations

1 site
  • Oxford University Hospitals NHS Foundation Trust
    Oxford, Oxfordshire OX3 7LE, United Kingdom
09

References and documents

Publications

  • Fletcher S, Jenner K, Holland M, Khair K. The lived experience of a novel disruptive therapy in a group of men and boys with haemophilia A with inhibitors: Emi & Me. Health Expect. 2022 Feb;25(1):443-454. doi: 10.1111/hex.13404. Epub 2021 Dec 8. PubMed 34878209 ↗

Study documents

  • Study protocol · Nov 4, 2019

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04723693
Lead sponsor
Haemnet
Collaborators
Roche Chugai
Responsible party
Sponsor
First posted
Jan 26, 2021
Start date
Feb 28, 2020
Primary completion
Jan 31, 2021
Completion
Jan 31, 2021
Results posted
Aug 19, 2024
Last update
Aug 19, 2024

Study contacts

Simon P Fletcher, MA
principal investigator · Researcher

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

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