Rituximab in Patients With Relapsed or Refractory TTP-HUS

NCT ID: NCT00531089

Last Updated: 2010-05-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-12-31

Study Completion Date

2011-01-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The general objective of this study is to assess the efficacy and safety of Rituximab in the management of patients with refractory or relapsed thrombotic thrombocytopenic purpura-hemolytic uremic syndrome (TTP-HUS). There have been several case reports and case series describing the use of Rituximab in patients with TTP-HUS; however its use has not been studied in a large trial. It is hypothesized that Rituximab may ameliorate the severity of certain cases of TTP-HUS by decreasing the number of activity of B-cells which may result in decreased production of the ADAMTS13 protease inhibitor. Patients with TTP-HUS not responding to standard therapy or patients with relapsed disease may have particular benefit. Treatments that decrease the frequency of relapse or shorten the time to remission of TTP-HUS will be of benefit by decreasing the need for blood product support.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Thrombotic Thrombocytopenic Purpura Hemolytic Uremic Syndrome

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Study group

All patients in the study will be in the study group and will receive rituximab. There is no "control" arm.

Group Type EXPERIMENTAL

Rituximab

Intervention Type DRUG

Rituximab will be administered on weeks 1, 2, 3, and 4 at a dose of 375 mg/m2 per infusion. Premedications (prednisone 50 mg, diphenhydramine 50 mg, acetaminophen) will be administered prior to study infusion. Patients will also be treated with plasma exchange as per institution/apheresis centre.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Rituximab

Rituximab will be administered on weeks 1, 2, 3, and 4 at a dose of 375 mg/m2 per infusion. Premedications (prednisone 50 mg, diphenhydramine 50 mg, acetaminophen) will be administered prior to study infusion. Patients will also be treated with plasma exchange as per institution/apheresis centre.

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Rituxan, rituximab

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* any patient 18 years or older diagnosed with relapsed or refractory TTP-HUS requiring therapy

Exclusion Criteria

* alternate cause of hemolytic microangiopathy (evidence of DIC, malignant hypertension, vasculitis, anti-phospholipid antibody syndrome, post-partum acute renal failure)
* congenital or familial TTP
* TTP occuring post-stem cell, bone marrow, or solid organ transplant
* drug-induced TTP
* pregnancy or breast-feeding
* history of hepatitis B or C infection
* prior rituximab treatment
* active or metastatic cancer
* other causes of thrombocytopenia such as ITP, myelodysplastic syndrome, confirmed or suspected drug-induced thrombocytopenia
* refusal to receive blood products
* hypersensitivity to blood products, plasma products, murine proteins, or any component of the Rituximab formulation
* geographic inaccessibility
* co-morbid illness limiting life expectancy to less than 2 months independent of TTP
* failure to provide written informed consent
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Canadian Apheresis Group

OTHER

Sponsor Role collaborator

Hoffmann-La Roche

INDUSTRY

Sponsor Role collaborator

McMaster University

OTHER

Sponsor Role collaborator

Hamilton Health Sciences Corporation

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Canadian Apheresis Group

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Kathryn E Webert, E

Role: PRINCIPAL_INVESTIGATOR

Hamilton Health Sciences Corporation

Ronan Foley, MD

Role: PRINCIPAL_INVESTIGATOR

Hamilton Health Sciences Corporation

Gail Rock, MD

Role: STUDY_DIRECTOR

Canadian Apheresis Group

William Clark, MD

Role: STUDY_DIRECTOR

University of Western Ontario/London Health Sciences

David Barth, MD

Role: STUDY_DIRECTOR

University of Toronto

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Foothills Medical Centre, Calgary Health REgion Apheresis Service

Calgary, Alberta, Canada

Site Status NOT_YET_RECRUITING

University of Alberta Hospital

Edmonton, Alberta, Canada

Site Status NOT_YET_RECRUITING

Vancouver General Hospital

Vancouver, British Columbia, Canada

Site Status RECRUITING

Winnipeg Regional Health Authority, Apheresis Department

Winnipeg, Manitoba, Canada

Site Status NOT_YET_RECRUITING

St. John Regional Hospital

Saint John, New Brunswick, Canada

Site Status NOT_YET_RECRUITING

Hamilton Health Sciences

Hamilton, Ontario, Canada

Site Status RECRUITING

London Health Sciences Centre, Westminister Campus

London, Ontario, Canada

Site Status RECRUITING

Princess Margaret Hospital, ABMT/Apheresis Unit

Toronto, Ontario, Canada

Site Status RECRUITING

Hopital Charles Lemoyne

Greenfield Park, Quebec, Canada

Site Status NOT_YET_RECRUITING

Hopital du Sacre-Coeur de Montreal

Montreal, Quebec, Canada

Site Status NOT_YET_RECRUITING

St. Paul's Hospital Apheresis Unit

Saskatoon, Saskatchewan, Canada

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

Canada

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Kathryn E Webert, MD

Role: CONTACT

905-521-2100 ext. 76733

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

John Klassen, MD

Role: primary

403-944-4712

Paul Yenson, Dr.

Role: primary

604-875-4863

Lisa Basque

Role: backup

604-875-4111 ext. 69014

Cathy Moltzan, MD

Role: primary

204-787-4269

Sean Dolan, MD

Role: primary

506-634-1201

Julie Carruthers

Role: primary

905-525-9140 ext. 22942

Clark F William, MD

Role: primary

519-685-8500 ext. 57238

David Barth, MD

Role: primary

416-946-4688

S Fox, MD

Role: primary

450-466-5000

J P Moquin, MD

Role: primary

514-338-2222 ext. 3368

Ahmed Shoker, MD

Role: primary

306-655-5934

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

CAG-1

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.