NCT05044845

Brief Summary

Gene therapy is a paradigm-shifting treatment for hemophilia B patients, particularly in resource-limited countries where factor availability remains low. Transparent and culturally sensitive communication around gene therapy is vital to the success of a high-quality consenting process. Current literature on knowledge, beliefs and attitudes about gene therapy in resource-limited countries is inadequate. In addition, few educational resources to explain basic gene therapy concepts exist in languages other than English. This study aims to address these gaps in knowledge and aid for the development of educational resources to assist the informed consent processes for gene therapy in resource-limited countries. Primary Objective: To assess baseline knowledge, beliefs, and attitudes about gene therapy held by hemophilia B patients globally Secondary Objectives:

  1. 1.To explore healthcare workers' (i.e., physicians, nurses, social workers, educators/academic coordinators) perspectives regarding the education needs of hemophilia B patients globally
  2. 2.To explore healthcare workers beliefs and attitudes about gene therapy
  3. 3.To identify preferences of patients with hemophilia B and their healthcare workers on how/by what method or pathway educational content should be provided.

Trial Health

93
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
150

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2022

Typical duration for all trials

Geographic Reach
6 countries

6 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 9, 2021

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 16, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

January 18, 2022

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 14, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 14, 2025

Completed
Last Updated

November 14, 2025

Status Verified

November 1, 2025

Enrollment Period

3.7 years

First QC Date

September 9, 2021

Last Update Submit

November 13, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Use of semi-structured interviews to qualitatively describe their attitudes, beliefs, and knowledge of gene therapy in hemophilia B

    Semi-structured interviews will be performed in patients with hemophilia B, their caregivers and healthcare workers to qualitatively describe their attitudes, beliefs, and knowledge of gene therapy in hemophilia B including concerns, expectations, and best way to receive information about gene therapy. Interviews will be audio recorded, transcribed verbatim and analyzed using semantic content analysis to identify common themes.

    Day 1, or at a future visit (up to approximately 1 year)

Study Arms (3)

Hemophilia B patients

Patients ≥12 years of age with a diagnosis of moderate (FIX ≥1% and ≤2%) or severe (\<1%) hemophilia B

Behavioral: Interview

Parents or Caregivers

Parents or caregivers to patients with hemophilia 12-17 years of age

Behavioral: Interview

Healthcare Workers

Doctors, nurses, social workers, pharmacists and educators who participate in the care of hemophilia B patients

Behavioral: Interview

Interventions

InterviewBEHAVIORAL

Semi structured interview will be conducted virtually using an online video-conferencing platform, phone or in person.

Also known as: Questions
Healthcare WorkersHemophilia B patientsParents or Caregivers

Eligibility Criteria

Age12 Years+
Sexall
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants who meet the eligibility criteria

You may qualify if:

  • Patients ≥12 years of age
  • Diagnosis of moderate (FIX ≥1% and ≤2%) or severe (\<1%) hemophilia B
  • Parents or caregivers to patients with hemophilia 12-17 years of age
  • \- Doctors, nurses, social workers, pharmacists and educators who participate in the care of hemophilia B patients

You may not qualify if:

  • Diagnosis of Hemophilia A
  • Diagnosis of other non-Hemophilia B bleeding disorders
  • Health care workers who do not participate in the care of hemophilia B patients
  • Healthcare worker who is conducting the interviews

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (6)

St. Jude Children's Research Hospital

Memphis, Tennessee, 38105, United States

Location

Civil Service Hospital

Kathmandu, Nepal

Location

Hospital Dos De Mayo

Lima, Peru

Location

National Hospital of Sri Lanka

Colombo, 01000, Sri Lanka

Location

Ramathibodi Hospital

Bangkok, 10400, Thailand

Location

National Institute of Hematology and Blood Transfusion

Hanoi, Vietnam

Location

Related Links

MeSH Terms

Conditions

Hemophilia B

Interventions

Interviews as Topic

Condition Hierarchy (Ancestors)

Blood Coagulation Disorders, InheritedBlood Coagulation DisordersHematologic DiseasesHemic and Lymphatic DiseasesCoagulation Protein DisordersHemorrhagic DisordersGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesGenetic Diseases, X-Linked

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationPublic HealthEnvironment and Public Health

Study Officials

  • Nidhi Bhatt, MD

    St. Jude Children's Research Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 9, 2021

First Posted

September 16, 2021

Study Start

January 18, 2022

Primary Completion

October 14, 2025

Study Completion

October 14, 2025

Last Updated

November 14, 2025

Record last verified: 2025-11

Locations