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Primary Biliary CirrhosisPhase 1/2NCT00364819

Initial Study of Rituximab to Treat Primary Biliary Cirrhosis

A Phase 1/2 study testing rituximab in people with Primary Biliary Cirrhosis, run by University of California, Davis at 1 site in United States.

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

The purpose of this study is to determine the safety of the anti-CD20 antibody rituximab in treating patients with Primary Biliary Cirrhosis (PBC). Rituximab is a laboratory-made antibody currently used to treat some kinds of lymphoma. Rituximab may also help people with PBC, a disease of the immune system. Read more about this study

Who is it for?
Ages 18 to 65 years, women only
Conditions the study is for
Primary Biliary Cirrhosis
What is being tested?
rituximab
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
1 siteUnited States
Study dates
Jan 2007to Dec 2009
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 to 65 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Liver biopsy showing histological PBC stages I, II, or III
  • Presence of all criteria for the diagnosis of PBC
  • serum AMA at titer >1:40
  • alkaline phosphatase >2X normal value for >6 months
  • compatible liver histology
  • Incomplete response to UDCA after 6 months of treatment.
  • Negative pregnancy test (female patients in fertile age)
  • Adequate renal function (serum creatinine < 1.2)

Who cannot join

  • End-stage/decompensated liver disease
  • ascites
  • jaundice with serum bilirubin > 2mg/dl
  • history of digestive bleeding secondary to portal hypertension or endoscopic evidence of varices at stage F2
  • history of hepatic encephalopathy
  • INR>1.2
Show all 9Show fewer
  • Other coexisting causes of liver disease
  • Use of other immunosuppressive medications 4 weeks prior to enrollment
  • Diuretics use

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of California Davis Medical Center

    Sacramento, California, 95817

Other trials in United States

About this study

Official title: Effects of Rituximab (Rituxan) on B Cell and AMA Response in Patients With Primary Biliary Cirrhosis

The purpose of this study is to determine the safety of the anti-CD20 antibody rituximab in treating patients with Primary Biliary Cirrhosis (PBC). Rituximab is a laboratory-made antibody currently used to treat some kinds of lymphoma. Rituximab may also help people with PBC, a disease of the immune system. However, the safety of rituximab in PBC patients must first be established.

Read the detailed description

This is a pilot, open-label, study on 10 female patients with AMA-positive PBC to determine the effects of two infusions of rituximab on response of memory B cells to bacterial motifs, on biochemical function, and histological features. We will enroll 10 consecutive AMA-positive patients with the diagnosis of PBC based on internationally accepted criteria and histological staging determined at liver biopsy and being currently treated with UDCA. Importantly, patients with advanced histological stages, decompensated liver disease, or waiting for OLT will not be included in the study (see exclusion criteria).

Patients eligible and willing to enter the study will be evaluated at baseline by isolation and study of frequency and absolute numbers of B cells and their function, biochemical and AMA tests. Histology and quality of life will be also evaluated in all patients. The methodology to be used for B cell study is already well-established in our laboratory as can be seen in the attached paper (Kikuchi et al. 2005b). Patients will be administered 1,000 mg rituximab intravenously by slow infusion on Day 1 and Day 15 (+/- 1 day). Rituximab's pharmacokinetics indicate that complete B cell depletion is obtained 2-3 days after administration and that such effect may be lost after 9 months (Vieira et al. 2004). In addition to our B cell work, serum samples will undergo AMA testing, including titers, using recombinant mitochondrial antigens (Miyakawa et al. 2001). Patients will also undergo serum chemistry panel, which includes liver function tests. Patients will continue on a steady dose of UDCA therapy throughout the study.

Being tested
rituximab
Keywords
Primary Biliary Cirrhosis
Medical subject headings
Liver Cirrhosis, Biliary

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • rituximabDrug

    Also called Rituxan (R)

    rituximab 1000 mg IV day 1 and 15, given over 5 - 6 hours

Study groups in NCT00364819
Study groupRoleWhat they receive
1Experimentalrituximab 1000 mg IV on days 1 and 15, given over 5 - 6 hours
Receives: Drug: rituximab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Adverse Events

    Measured: 52 weeks

Secondary outcomes (4)
  1. Change in Serum Immunoglobulin G

    The difference in serum immunoglobulin G from Baseline to Week 52

    Measured: 52 Weeks

  2. Change in Serum Immunoglobulin A

    The difference in serum immunoglobulin A from Baseline to Week 52

    Measured: 52 Weeks

  3. Change in Serum Immunoglobulin M

    The difference in serum immunoglobulin M from Baseline to Week 52

    Measured: 52 Weeks

  4. Change in Serum Alkaline Phosphatase

    The difference in serum alkaline phosphatase from Baseline to Week 52

    Measured: 52 Weeks

Timeline

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

  1. First posted16 Aug 2006 (estimated)
  2. Study startJan 2007
  3. Primary completionJul 2009
  4. Study completionDec 2009

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00364819
Sponsor's protocol ID
200614025
Status last verified
Jun 2017
First submitted
15 Aug 2006
Last updated
2 Jul 2017
Data monitoring committee
Yes
Individual data sharing
Yes: IPD may be shared upon request and appropriate approval from Institutional Review Boards and material transfer agreements. No patient identifiers will be shared. Requests for IPD may be made to the Principle Investigator.

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing rituximab in people with Primary Biliary Cirrhosis, run by University of California, Davis at 1 site in United States.

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 8 inclusion and 9 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 2 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Jun 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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.

What does the primary outcome measure?

Number of Participants With Adverse Events (time frame: 52 weeks). It is what the study was designed to measure, not a finding.

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 2 Jul 2017.

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