Observational Registry of the Treatment of Glanzmann's Thrombasthenia

December 19, 2014 updated by: Novo Nordisk A/S

Treatment of Glanzmann's Thrombasthenia: A Prospective Observational Registry

This observational registry is conducted in Europe, Asia, Africa and the United States of America (USA).

The purpose of the registry is to evaluate the efficacy and safety of activated recombinant human factor VII (rFVIIa) during bleeding episodes and for the prevention of bleeding during invasive procedures/surgery in patients with Glanzmann's thrombasthenia (GT) with past or present refractoriness to platelet transfusions. Attention will be directed towards complications related to thrombo-embolic events and concomitant medications especially antifibrinolytics.

Study Overview

Status

Status

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

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.

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.
Observational

Enrollment (Actual)

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.
218

Contacts and Locations

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

Study Locations

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with GT. There is no limit to the number of bleeding episodes or preventions of bleeding during invasive procedures/surgery that can be entered for each patient within the lifetime of the registry. Patients will receive standard care according to local practice, thus any systemic haemostatic treatment (with or without antifibrinolytic drugs or other agents) considered useful by the centres for treatment of GT, are included in the registry.

Description

Inclusion Criteria:

  • Patients with congenital GT defined as patients with lifelong bleeding tendency characterised by impaired or absent platelet aggregation, impaired clot retraction and prolonged bleeding time or prolonged platelet function analyser closure time. The patient has normal platelet counts and platelet morphology. Optional diagnosis criteria are quantitative or qualitative evaluation of GP (Glycoprotein) IIb/IIIa receptor including flow cytometry and identification of gene defects
  • Signed informed consent by the patient or next of kin or legally acceptable representative to collect data on treatment of a given bleeding episode or surgical event as specified in the protocol. If informed consent is provided by the next of kin or legally acceptable representative, consent must also be obtained from the patient as soon as he/she is able to do so. Informed consent must be obtained before entry of data into the registry

Exclusion Criteria:

  • Patients with acquired thrombasthenic states caused by autoimmune disorders (acute or chronic) or drugs

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
A
Drug: activated recombinant human factor VII
A prospective, observational multi-national registry collecting data and evaluating the efficacy and safety of rFVIIa in patients with GT with past or present refractoriness to platelet transfusions. The registry will also collect data from a broader range of GT patients treated with systemic haemostatic treatment (with or without antifibrinolytic drugs or other agents) used in the clinics. Data collection will continue for a maximum of six years. Baseline data as well as data obtained during either bleeding episodes or invasive procedures/surgeries will be recorded in the registry.

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
Time Frame
For bleeding episodes: Overall efficacy evaluated by the caregiver/patient
Time Frame: within 30 days of end of treatment
within 30 days of end of treatment
For surgery including invasive and dental procedures: Haemoglobin level
Time Frame: prior to surgery and 24 hours after surgery
prior to surgery and 24 hours after surgery
For surgery including invasive and dental procedures: Overall haemostatic evaluation by the surgeon
Time Frame: 24 hours after surgery
24 hours after surgery

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
Time Frame
Changes in laboratory parameters (prothrombin time, platelet count, fibrinogen), if available
Time Frame: at the time of administration and two hours after the administration of rFVIIa
at the time of administration and two hours after the administration of rFVIIa
Adverse Events (AEs)
Time Frame: during treatment episodes
during treatment episodes
Serious Adverse Events (SAEs)
Time Frame: during treatment episodes
during treatment episodes

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.
Novo Nordisk A/S

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

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

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.
January 1, 2004

Primary Completion (Actual)

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.
October 1, 2011

Study Completion (Actual)

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.
October 1, 2011

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).
October 7, 2011

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.
November 17, 2011

First Posted (Estimate)

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.
November 22, 2011

Study Record Updates

Last Update Posted (Estimate)

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.
December 23, 2014

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.
December 19, 2014

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.
December 1, 2014

More Information

Terms related to this study

Keywords

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.
  • F7HAEM-3521
  • U1111-1122-5019 (Other Identifier: WHO)

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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