Rare Bleeding Disorder Database (RBDD)
ASH December 9, 2005
Present:
Flora Peyvandi
Marion Koerper
Amy D Shapiro
Michael Soucie
Bruce Evatt
Jean Donadieu
Uri Seligshon
Minutes:
Dr. Peyvandi opened with a presentation on past history
of the RBDD including:
1. Necessity to perform cross-sectional
studies among different Centers, in order to fill the gap between
the knowledge on clinical manifestation/treatment practice/patient
outcomes and their integration/availability
2. Established goals of the SSC working group on RBDs:
Database development and Product development licensure
3. The International Database considered as a reference
informative tool where knowledge and expertise could be collected
and shared in order to:
- To evaluate the distribution of patients affected by
RBDs in the world
- To identify available treatments and correlated problems
such as: drug production, cost and distribution, adverse effects
- To provide evidence-based guidelines for diagnosis
and management of patients
4. Identification of the 870 Hemophilia Treatment Centers
in the world by the www.wfh.org
web site
5. Each Center was invited to fill in a simple and general
questionnaire in order to understand: how many Centers would
like to participate and what type of intervention needs to be
done in each region of the world
6. Report on distribution of patients, available treatment
and problems on products distribution for treatment reported
by the 50 already joined Centres
7. Sending of a specific tailored questionnaire to all
Hemophilia Centers, after their joining to the RBDD, in order
to collect more detailed information on each enrolled patient
in order to collect individual information on each single patient
including: phenotype and genotype analysis, clinical manifestation,
type of treatment, on-demand/prophylaxis, treatment-related
complications
Dr Peyvandi presented the mission of the RBDD and her vision
for use of data housed with the database including:
1. A mechanism by which clinicians throughout the world
could locate other treating clinicians and contact them regarding
issues related to patient care
2. Identification of treatment modalities employed, and
the outcome of these modalities
3. Preparation of a multicenter prospective studies by
an expert group is required in order to: design the study, find
the funds, analyze the data, prepare guidelines
In order to reach these goals, Dr
Peyvandi proposed:
1. It would be useful to appoint an expert group of 2-3
person who has to evaluate all the different aspects of each
specific deficiency
2. To gain industry interest in developing missing concentrates
Dr. Donadieu from France
presented data regarding France's National bleeding disorder registry
and specific data regarding rare disorders within their population.
The Rare bleeding disorders' cohort
is nested in France in a general cohort for constitutional bleeding
disorders, including hemophilia A & B and Willebrand disease.
The hemophilia's cohort started in 1994 in France and the new
version, so called FranceCoag started in 2003 (www.francecoag.org).
Enrollment is in progress, and exhaustivity is not achieved today.
The information currently collected is the demographic status,
the biological features including the value (%) of the factor,
the major medical events (bleeding, surgery) and the therapy.
At the end of September 2005, the enrollment in FranceCoag was:
Factor I deficiency 21
Factor II deficiency 0
Factor V deficiency 19
Factor VII deficiency 40
Factor X deficiency 7
Factor XI deficiency 34
Factor XIII deficiency 16
Amy Shapiro presented
a summary of MASAC's (Medical and Scientific Advisory Council
of the National Hemophilia Foundation) position on RBDs and work
that has been done to date in the United States. Specifically
data and lessons learned from the North American Registry of Rare
Bleeding Disorders was provided by Dr. DiMichele and presented.
The system in the United Sates of federally recognized hemophilia
treatment centers and the data reporting requirements of those
centers was presented. The two main mechanisms through which national
data are collected in the US include:
1. The Hemophilia Data
Set (HDS): this system collects minimal anonymous data on patients
throughout the US that are considered active registered patients.
Although minimal and anonymous, these data may serve to provide
a denominator for RBDs patients in the US
2. The Universal Data Collection System (UDC): participation
in this data collection program is mandatory for hemophilia
centers; however, patient participation requires consent and
is voluntary from the patient's perspective. These data are
far more complete and include historic data, interim data for
repeat participation, physical therapy measurements, blood draw
for viral testing and serum banking.
Advantages to these national registries for data collection are
that data submission by centers is mandatory rather than voluntary
(such as was the case with the present RBDD and the North American
Rare Bleeding Disorder Registry). This increases the opportunities
for compilation of more complete and accurate data. Dr. Shapiro
reported that MASAC developed a position statement on RBDs in
2004 that reflected their belief that lack of specific product
availability for treatment of RBDS represented a safety issue
(MASAC Document #143, MASAC Recommendations Regarding Rare Coagulation
Factor Disorders at http://www.hemophilia.org/research/masac/masac143.htm
). MASAC subsequently developed a working party to address this
problem.
In summary, MASAC supports:
1. The effort to create
an international database for RBDs
2. Efforts to work with national agencies to create a
system for the US to allow this program to proceed and be successful
3. Efforts to work with the International Society of
Thrombosis and Haemostasis (ISTH) RBDD in the hopes that it
will serve as the platform for this international effort and
as the final repository for data from a variety of independent
existing international sources on these disorders.
It is hoped that these efforts will:
1. Serve to improve and
increase the access to care for all those affected with RBDs
through the world
2. Increase pharmaceutical interest in development for
replacement products for these disorders
3. Allow caregivers of those with RBDs an opportunity
to find each other and exchange information on these diseases
and the treatment modalities employed.
Raised with this discussion was
the issue that not all patients within the US with RBDs are cared
for by the federally network of hemophilia centers. If data for
hemophilia A and B obtained from a surveillance project that was
conducted by the CDC are applicable, then perhaps 70% of these
patients are within the system of federally recognized treatment
centers and 30% are outside of this system. Therefore, a mechanism
should be considered for entry of a patient into the RBDD that
was not through the national data collection system. Issues related
to this include:
1. Preventing repetitive
entries on the same patient from a variety of sources
2. Validation of the data entered including the diagnoses.
Suggestions to address these issues
included the possibility of segregating data with in the database
into validated data (national sources) and non-validated data
(individual submissions, non-national sources). Also discussed
were mechanisms though which repetitive entries might be prevented.
Dr. Shapiro requested consideration of the following suggestions:
1. Revisiting initial data
collection on RBDs and requesting data from national data sources
such as the CDC to provide a more accurate base for the RBDD.
2. Inclusion of other rare disorders such as plasminogen
activator inhibitor 1 deficiency and plasminogen deficiency
(i.e. expand this system to include rare coagulation factor
deficiencies).
Also presented was specific information
from both the Hemophilia Data Set and the Universal Data Collection
System by Dr. Soucie from the Centers for Disease Control
and Prevention. Much of the data collected through the UDC is
aimed specifically geared towards hemophilia; yet included within
this system are patients with RBDs.
Dr. Soucie suggested that
the CDC could consider:
1. Making a priority, enrollment of patients with RBDs
into the UDC by hemophilia treatment centers in order to capture
more complete data on these disorders
2. Revising the data collection forms to collect data
more specific and appropriate to each of these disorders.
Dr. Evatt discussed the perspective
of the World Federation of Haemophilia regarding RBDs. A recent
objective of the WFH has been to collect data from countries throughout
the world on these disorders. Sources through which the data are
collected are member organizations rather than national agencies.
Dr. Evatt felt that the WFH would be interested in supporting
efforts of the RBDD.
The following discussion ensued
surrounding objectives as listed:
1. Financial support for RBDD: initially support for
this effort was provided through a grant obtained by Dr. Peyvandi
from the Bayer Awards Foundation. The time line for this initial
project is now drawing to completion and further funding for
expansion and efforts will be required. Dr. Shapiro asked
whether the ISTH provided financial support to the RBDD; at
this time although the RBDD originally was voted by the SSC
of the Factor VIII/IX subcommittee, no financial support was
available. Dr. Shapiro asked whether the ISTH was a designated
"owner" of the database, so that future existence
and maintenance could be assured. At this time the RBDD was
created by a contracted agency identified by Dr. Peyvandi
in Milan and is housed at the institution that Dr. Peyvandi
is affiliated (Angelo Bianchi Bonomi Hemophilia and Thrombosis
Centre IRCSS Foundation, Maggiore Hospital, Mangiagalli and
Regina Elena Luigi Villa Foundation University of Milan, Milan,
Italy). Discussion ensued regarding methods to consider housing
the database more closely affiliated with the ISTH to allow
its continued existence and maintenance over time. This will
be investigated. Dr. Shapiro asked about further funding
solicitation and support, to whom would these funds be disbursed
and would there be associated indirect costs. This issue will
also be investigated so that the executive committee is prepared
to move ahead to identify and obtain future required funding.
2. Obtaining data from worldwide national sources:
Dr. Peyvandi had previously distributed a survey on RBDs to
~850 hemophilia centers throughout the world. Of these ~50 responded
and provided data that is housed within the RBDD and serves
as the baseline global data on these disorders throughout the
world. As previously discussed data submission via this route
is voluntary for the centers that were surveyed and limited
by the number that respond. A suggestion was made to try to
obtain more complete data from national registries such as those
represented by Dr. Donadieu from France and Dr. Soucie
from the US. These data might be disparate in terms of what
is collected but basic data on the number of identified individuals
with these disorders would likely be more complete. A discussion
regarding the number of countries within the world who have
such national databases that could potentially contribute to
this effort followed. It was decided that efforts would be made
prior to the WFH meeting in Vancouver to identify as many countries
as possible with such national registries, determine the agency/individuals
within those agencies responsible for these systems and contact
them to potentially meet at WFH in 2006 to explore their interest
in supporting an international effort through the RBDD.
3. Proceeding with more specific data collection on
each disorder: the first issue raised was the development
of a specific data collection tool for each disorder. Dr.
Peyvandi has developed a general data collection tool (INTERNATIONAL
REGISTRY) that could be utilized for all these disorders or
could serve as a template for revision for each specific disorder.
It was discussed that subcommittees for each disorder could
be created and that these subcommittees could be charged with:
a. Development of a specific
data collection system for each disorder
b. Development of the specific part of the website/RBDD
that addressed these disorders including literature citations,
individuals with active research interests in these disorders
including those that could provide mutation analysis
c. Development of a clinical research agenda for these
disorders.
It was suggested that this could
present an opportunity to young members within the filed to serve
as members or leaders within these sections.
Action Points:
1. Establish a meeting
at the WFH in Vancouver
2. Write hemophilia centers throughout the world in order
to
a. Identify if a national
data collection system exists for specific countries
b. Identify those agencies that are responsible for
these national data collection system
c. Invite these agencies or a responsible individual
within these agencies from national data registries throughout
the world to the RBDD meeting
d. Develop an agenda for the WFH RBDD meeting
e. Finances
f. Subcommittees for each disease
g. Charter for RBDD
h. Housing of RBDD