The Safety and Efficiency of Luspatercept in Chinese Adults With Transfusion Dependent β-thalassemia: a Real-world Study

July 15, 2022 updated by: Jianpei FANG, Sun Yat-sen University
This is a prospective, single-arm, open-label study. Twenty adult patients with transfusion-dependent β -thalassemia will be enrolled to receive Luspatercept with optimal supportive care, including blood transfusion and iron removal, based on the clinician's judgment and practice. The main objective of this study was to evaluate the efficacy and safety of Luspatercept in the treatment of adult patients with transfusion-dependent β -thalassaemia in Chinese clinical practice, and to provide evidence reference for subsequent clinical use.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Twenty adult patients with transfusion-dependent β -thalassemia will be enrolled to receive Luspatercept with optimal supportive care, being injected subcutaneously every 3 weeks ,by the dose of 1-1.25 mg/kg. The main objective of this study was to evaluate the efficacy and safety of Luspatercept in the treatment of adult patients with transfusion-dependent β -thalassaemia in Chinese clinical practice, and to provide evidence reference for subsequent clinical use.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Guangdong
      • Guangzhou, Guangdong, China, 510000
        • Recruiting
        • The Second Affiliated Hospital of Sun Yat-sen University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

-≥18 years old

  • The patient was clearly diagnosed as transfusion-dependent β -thalassemia, the blood transfusion period was ≤60 days, and the red blood cell infusion volume was not less than 3-12U in the 12 weeks before enrollment, which could provide the red blood cell infusion volume record in the 12 weeks before enrollment
  • Patients who were treated with thalidomide before enrollment were required to stop the treatment for more than 4 weeks, and their hemoglobin decreased to below 90g/L. Blood transfusion was required, and records of blood transfusion within 12 weeks could be provided
  • Voluntarily participate in the study and sign the informed consent;

Exclusion Criteria:

  • (1) Pregnant or lactating women
  • persons known to be allergic to Luspatercept and/or Luspatercept excipients for injection
  • Severe liver dysfunction (liver enzyme (ALT or AST) ≥3 TIMES ULN)
  • Severe renal impairment (eGFR < 30 ml/min/1.73m3 or patients with end-stage renal disease)
  • Heart disease, heart failure classified as Class 3 or higher by the New York Heart Association (NYHA), or severe arrhythmia requiring treatment, or recent myocardial infarction within 6 months of randomization.
  • The patient has uncontrolled hypertension. According to NCI CTCAE version 5.0, controlled hypertension in this protocol is considered to be ≤1.
  • Patients with a history of deep vein thrombosis or stroke within 24 weeks prior to enrollment
  • Erythropoietin, Luspatercept or hydroxyurea were used 8 weeks before enrollment
  • Any other significant medical condition, laboratory abnormality, or mental illness that the Investigator deems inappropriate for inclusion.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: treatment group
accept Luspatercept treatment
Drug: Luspatercept Injectable Product
1-1.25mg/kg every 3 weeks subcutaneous injection
Other Names:
  • luspatercept

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
A 33% reduction in the red cell (RBC) transfusion burden for any 12 consecutive weeks within 24 weeks of Luspatercept treatment compared with baseline
Time Frame: 24 weeks
the incidence of 33% reduction in RBC transfusion
24 weeks
The incidence of adverse events within 24 consecutive weeks of Luspatercept treatment
Time Frame: 24weeks
incidence of reported adverse events
24weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
the incidence of 50% reduction in transfusion in any 12 consecutive weeks
Time Frame: 24 weeks
the incidence of 50% reduction in transfusion
24 weeks
Changes in mean cumulative transfusion volume from baseline at weeks 1-9, 1-12, and 1-24
Time Frame: 24 weeks
volume of transfusion
24 weeks
The rate of transfusion free at any 8 and 12 consecutive weeks in the entire study population
Time Frame: 24 weeks
volume of transfusion
24 weeks
Changes in mean serum ferritin (SF) levels in the population from baseline
Time Frame: 24 weeks
serum ferritin (SF) levels
24 weeks
Changes of cardiac and liver iron concentrations at 24 weeks from baseline (MRI T2*)
Time Frame: 24 weeks
MR T2*
24 weeks
changes in reticulocyte levels from baseline during treatment
Time Frame: 24 weeks
blood routine
24 weeks
changes in fetal hemoglobin levels from baseline during treatment
Time Frame: 24weeks
Hemoglobin electrophoresis
24weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sun Yat-sen University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Jianpei Fang, Dr., SunYat-senU2H

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2022

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 28, 2023

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 30, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 7, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 15, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 18, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 18, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 15, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SYSKY-2022-088-02

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

privacy information of individual participant is not available

IPD Sharing Time Frame

end of the study to 2 years after the end of study

IPD Sharing Supporting Information Type

  • Study Protocol
  • Informed Consent Form (ICF)
  • Clinical Study Report (CSR)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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