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Hemophilia BNCT00195221

Study to Describe the Allergic Reactions to Factor IX in Patients With Hemophilia B

An observational study of Hemophilia B and Allergic Reactions, run by Wyeth is now a wholly owned subsidiary of Pfizer at 38 sites in 9 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Retrospective, multicenter study in patients with hemophilia B. This study will be placed at 20 to 50 hemophilia treatment centers in North America and the EU, and is designed to estimate the frequency of Class II and III allergic reactions in association with the administration of any FIX concentrate. Read more about this study

Who is it for?
Any age
Conditions the study is for
Hemophilia B, Allergic Reactions
How many people
166 participants
Where
38 sitesin 9 countries
Study dates
Feb 2005to Nov 2007
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Written consent to release patient information
  • Living or deceased patients with mild to severe hemophilia B who have had at least 1 exposure to replacement factor IX product(s).
  • Living or deceased patients who had their first infusion of any FIX product between 1 January 1991 and 31 December 2003.

Who cannot join

  • There are no exclusion criteria.

Trial locations and contacts

38 sites in 9 countries.

38 sites in 9 countries

United States15 sites
  • Study site

    Atlanta, Georgia, 30322

  • Study site

    Boise, Idaho, 83712

  • Study site

    Dayton, Ohio, 45404-1815

  • Study site

    East Lansing, Michigan, 48823

  • Study site

    Fort Worth, Texas, 76104

  • Study site

    Iowa City, Iowa, 52242

  • Study site

    Memphis, Tennessee, 38105

  • Study site

    New Brunswick, New Jersey, 08903

  • Study site

    Orange, California, 92868

  • Study site

    Peoria, Illinois, 61614

  • Study site

    Philadelphia, Pennsylvania, 19104

  • Study site

    Phoenix, Arizona, 85016

  • Study site

    Rochester, Minnesota, 55905

  • Study site

    San Antonio, Texas, 78207

  • Study site

    Seattle, Washington, 98105

Other trials in United States

Italy9 sites
  • Study site

    Catania, 95124

  • Study site

    Catanzaro, 88100

  • Study site

    Milan, 20162

  • Study site

    Naples, 5-80131

  • Study site

    Padova, 35128

  • Study site

    Palermo, 90100

  • Study site

    Parma, 43100

  • Study site

    Perugia, 06100

  • Study site

    Vicenza, 36100

Other trials in Italy

France4 sites
  • Study site

    Liffré, 35340

  • Study site

    Montmorency, 95160

  • Study site

    Paris, 75014

  • Study site

    Strasbourg, 67098

Other trials in France

Belgium2 sites
  • Study site

    Brussels

  • Study site

    Montegnée, 4420

Other trials in Belgium

Germany2 sites
  • Study site

    Hamburg, HH20246

  • Study site

    Münster, D-48413

Other trials in Germany

Spain2 sites
  • Study site

    Valencia, 46009

  • Study site

    Valladolid, 47004

Other trials in Spain

United Kingdom2 sites
  • Study site

    Cardiff, CF14 4XN

  • Study site

    Wolverhampton, Wstmid, WV10 0QP

Other trials in United Kingdom

Austria1 site
  • Study site

    Vienna, 1090

Other trials in Austria

Canada1 site
  • Study site

    Calgary, Alberta, T2N2T9

Other trials in Canada

About this study

Official title: A Retrospective Study to Describe the Incidence of Moderate to Severe Allergic Reactions to Factor IX in Patients With Hemophilia B

Retrospective, multicenter study in patients with hemophilia B. This study will be placed at 20 to 50 hemophilia treatment centers in North America and the EU, and is designed to estimate the frequency of Class II and III allergic reactions in association with the administration of any FIX concentrate.

Following informed consent and eligibility, historical patient information including demographics, allergy history, hemophilia history, frequency and severity of allergic reaction(s), number of exposure days with products causing allergic reactions, exposure days to blood products including FIX concentrates, treatment for allergic reaction(s), outcome of event(s), any other adverse event(s) occuring within 48 hours of onset of allergic reaction(s), rechallenge and outcome, switch to another FIX product (if applicable) and outcome, current status of patient, and results of any special studies (eg, skin or RAST testing, alloantibody analyses, ect) will be collected.

Keywords
Hemophilia B
Medical subject headings
Hemophilia B, Hypersensitivity

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Sep 2005 (estimated)
  2. Study startFeb 2005
  3. Study completionNov 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Time perspective
Retrospective
Enrolment
166 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00195221
Sponsor's protocol ID
3090A-101657
Status last verified
Dec 2007
First submitted
12 Sep 2005
Last updated
5 Dec 2007
Results posted
No

Questions about this trial

What is this clinical trial studying?

An observational study of Hemophilia B and Allergic Reactions, run by Wyeth is now a wholly owned subsidiary of Pfizer at 38 sites in 9 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Dec 2007. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 38 sites in United States, Italy, France, Belgium, Germany and 4 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Dec 2007.

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