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Pilot Study of Rituximab for Membranoproliferative Glomerulonephritis

Primary Purpose

Glomerulonephritis, Membranoproliferative

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Rituximab
Sponsored by
Mayo Clinic
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Glomerulonephritis, Membranoproliferative

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria: MPGN either native/renal transplant kidneys with biopsy last 3 years Age > 18 years Urinary protein to creatinine ratio > 1.0 in a 24-hour urine collection, despite ACE inhibitor/ARB treatment Patients need to be treated with an ACEI and/or ARB, for at least 3 months prior to enrollment with the systolic blood pressure < 140 mm Hg for at least 75% of readings. Goal systolic blood pressure will be < 130 mm Hg.) Women must be post-menopausal, surgically sterile or practicing a medically approved method of contraception Patients intolerant of ACE inhibitors/ARBs may enter the study without being treated with these agents Able/willing to give written informed consent/comply with the requirements of study protocol Estimated GFR ≥ 25 ml/min per 1.73m^2 in the presence of ACE inhibitor/ARB therapy. The GFR will be estimated using the 4 variable Modification of Diet in Renal Disease (MDRD) equation/National Kidney Foundation - Chronic Kidney Disease (NKF-CKD) guidelines Adequate liver function, indicated by bilirubin, aspartate aminotransferase (AST), and alkaline phosphatase levels not more than 2.5 times the upper normal limit Negative serum pregnancy test (for women of child bearing age) Men and women of reproductive potential must agree to use an acceptable method of birth control during treatment and for twelve months (1 year) after completion of treatment Exclusion Criteria: Age <18 years. Estimated GFR < 25 ml/min per 1.73 m^2 Concurrent use of immunosuppressive therapy with the exceptions of prednisone 10 mg/day or less or an equivalent amount of another glucocorticoid or, among transplant patients, stable or decreasing transplant immunosuppression. Patient must be off immunosuppressive medications for > 3 months prior to enrollment into the study Medical conditions causing MPGN (e.g. HIV, hepatitis B, hepatitis C, systemic lupus erythematosus, monoclonal gammopathies). Patients with idiopathic cryoglobulinemia will not be excluded Presence or suspicion of active infection Type 1 or type 2 diabetes mellitus Treatment with any investigational agent within 4 weeks of screening or 5 half-lives of the investigational drug (whichever is longer) Receipt of a live vaccine within 4 weeks prior to randomization Previous Treatment with Rituximab (MabThera®/Rituxan®) or another B-cell depleting antibody History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies Human immunodeficiency virus (HIV) Hepatitis B or C History of recurrent significant or recurrent bacterial infections Known active bacterial, viral fungal mycobacterial, or other infection (including tuberculosis or atypical mycobacterial disease, but excluding fungal infections of nail beds) or any major episode of infection requiring hospitalization or treatment with i.v. antibiotics within 4 weeks of screening or oral antibiotics within 2 weeks prior to screening Ongoing use of high dose steroids(> 10 mg/day)or unstable steroid dose past 4 weeks Lack of peripheral venous access Drug,alcohol or chemical abuse within 6 months prior to screening Pregnancy(negative serum pregnancy test performed all women of childbearing potential within 7 days of treatment) Lactation Concomitant malignancies/previous malignancies within last 5 years, with the exception of adequately treated basal/squamous cell carcinoma of skin or carcinoma of cervix Major psychiatric disorder Significant cardiac or pulmonary disease Any other disease, metabolic dysfunction, physical examination finding, or clinical laboratory suspicion of a disease/condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or render the patient at high risk from treatment complications Inability to comply with study and follow-up procedures Laboratory Exclusion Criteria (Screening): Hemoglobin:< 8.5 gm/dL Platelets:< 100,000/mm Total bilirubin,AST/alkaline phosphatase > 2.5 x Upper Limit of Normal unless related to primary disease Positive Hepatitis B or C serology Positive HIV

Sites / Locations

  • Mayo Clinic

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Rituximab, IV infusion

Arm Description

The Rituximab dose is 1000 mg (1 gm) given as an IV infusion every two weeks for 2 doses (days 1 and 15)

Outcomes

Primary Outcome Measures

Proteinuria
Complete remission (CR) UP ≤ 0.3 g, without doubling of serum creatinine Partial remission (PR) Reduction in UP of > 50% plus final UP ≤ 3.5 g but >0.3 g, without doubling of serum creatinine Limited response (LR) Reduction in UP of > 50% with final UP > 3.5 g, without doubling of serum creatinine Non-response (NR) Reduction in UP of < 50%. (includes progression of UP), without doubling of serum creatinine Progression Proteinuria increases by > 50% or serum creatinine doubles Relapse New development of nephrotic range proteinuria, i.e. > 3.5 g/day

Secondary Outcome Measures

Serum albumin
Change in serum albumin concentration
Serum cholesterol
Change in serum cholesterol levels

Full Information

First Posted
January 10, 2006
Last Updated
January 15, 2013
Sponsor
Mayo Clinic
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1. Study Identification

Unique Protocol Identification Number
NCT00275613
Brief Title
Pilot Study of Rituximab for Membranoproliferative Glomerulonephritis
Official Title
Pilot Study of Rituximab for Membranoproliferative Glomerulonephritis
Study Type
Interventional

2. Study Status

Record Verification Date
January 2013
Overall Recruitment Status
Completed
Study Start Date
November 2005 (undefined)
Primary Completion Date
March 2009 (Actual)
Study Completion Date
March 2009 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Mayo Clinic

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
Membranoproliferative glomerulonephritis (MPGN) is a relatively-rare, immune-mediated kidney disease. All current therapies are inadequate and MPGN frequently leads to kidney failure. This study is a 10 patient trial of the monoclonal antibody rituximab for adult patients with MPGN. Study patients will receive 2 doses of rituximab intravenously on days 1 and 15 and will then be followed for 1 year.
Detailed Description
Membranoproliferative glomerulonephritis (MPGN) is a relatively-rare, immune-mediated glomerular disease. There is no accepted therapy and all current therapies are inadequate. Current therapeutic options include immunosuppression with corticosteroids alone or in combination with alkylating agents, antiplatelet therapy with aspirin and/or dipyridamole and/or warfarin, and angiotensin converting enzyme inhibitors and/or angiotensin receptor blockers. As with other glomerular diseases the amount of protein in the urine correlates well with the long-term prognosis. Thus, this parameter has been used in previous studies, and will be used in this study, as the primary indicator of therapeutic efficacy. We propose a pilot study to test the hypothesis that selective B lymphocyte depletion will result in disappearance of pathogenic antibodies and induce remission of proteinuria in patients with idiopathic membranoproliferative glomerulonephritis. Our population will be 10 adults with MPGN involving either the native kidneys or a renal transplant. We will enroll patients with a glomerular filtration rate (GFR) greater than or equal to 25 ml/min, as estimated by creatinine clearance, and with a 24 hour urinary ratio of protein to creatinine greater than or equal to 1, while receiving an angiotensin converting enzyme inhibitor (ACEI) or angiotensin II receptor blocker (ARB). Patients will receive Rituximab 1g on Day 1 and 15. Patients will be followed for 1 year following completion of treatment. The primary outcome will be the change in urinary protein excretion at 6 months. Secondary outcomes will include changes in the GFR, changes in urinary protein excretion at 3, 9, and 12 months, the rate of change in urinary protein excretion, serum albumin concentration, serum cholesterol, the number of complete and partial remissions, time to remission, and the number of relapses.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Glomerulonephritis, Membranoproliferative

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
10 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Rituximab, IV infusion
Arm Type
Experimental
Arm Description
The Rituximab dose is 1000 mg (1 gm) given as an IV infusion every two weeks for 2 doses (days 1 and 15)
Intervention Type
Drug
Intervention Name(s)
Rituximab
Other Intervention Name(s)
Rituxan
Intervention Description
The Rituximab dose is 1000 mg (1 gm) given as an IV infusion every two weeks for 2 doses (days 1 and 15)
Primary Outcome Measure Information:
Title
Proteinuria
Description
Complete remission (CR) UP ≤ 0.3 g, without doubling of serum creatinine Partial remission (PR) Reduction in UP of > 50% plus final UP ≤ 3.5 g but >0.3 g, without doubling of serum creatinine Limited response (LR) Reduction in UP of > 50% with final UP > 3.5 g, without doubling of serum creatinine Non-response (NR) Reduction in UP of < 50%. (includes progression of UP), without doubling of serum creatinine Progression Proteinuria increases by > 50% or serum creatinine doubles Relapse New development of nephrotic range proteinuria, i.e. > 3.5 g/day
Time Frame
The primary endpoints are based on quantitative changes in urine protein measured at 6 months. Additional evaluations of urine protein will be done at 3, 9, and 12 months.
Secondary Outcome Measure Information:
Title
Serum albumin
Description
Change in serum albumin concentration
Time Frame
3, 6, 9 and 12 months
Title
Serum cholesterol
Description
Change in serum cholesterol levels
Time Frame
6 and 9 month timepoints

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: MPGN either native/renal transplant kidneys with biopsy last 3 years Age > 18 years Urinary protein to creatinine ratio > 1.0 in a 24-hour urine collection, despite ACE inhibitor/ARB treatment Patients need to be treated with an ACEI and/or ARB, for at least 3 months prior to enrollment with the systolic blood pressure < 140 mm Hg for at least 75% of readings. Goal systolic blood pressure will be < 130 mm Hg.) Women must be post-menopausal, surgically sterile or practicing a medically approved method of contraception Patients intolerant of ACE inhibitors/ARBs may enter the study without being treated with these agents Able/willing to give written informed consent/comply with the requirements of study protocol Estimated GFR ≥ 25 ml/min per 1.73m^2 in the presence of ACE inhibitor/ARB therapy. The GFR will be estimated using the 4 variable Modification of Diet in Renal Disease (MDRD) equation/National Kidney Foundation - Chronic Kidney Disease (NKF-CKD) guidelines Adequate liver function, indicated by bilirubin, aspartate aminotransferase (AST), and alkaline phosphatase levels not more than 2.5 times the upper normal limit Negative serum pregnancy test (for women of child bearing age) Men and women of reproductive potential must agree to use an acceptable method of birth control during treatment and for twelve months (1 year) after completion of treatment Exclusion Criteria: Age <18 years. Estimated GFR < 25 ml/min per 1.73 m^2 Concurrent use of immunosuppressive therapy with the exceptions of prednisone 10 mg/day or less or an equivalent amount of another glucocorticoid or, among transplant patients, stable or decreasing transplant immunosuppression. Patient must be off immunosuppressive medications for > 3 months prior to enrollment into the study Medical conditions causing MPGN (e.g. HIV, hepatitis B, hepatitis C, systemic lupus erythematosus, monoclonal gammopathies). Patients with idiopathic cryoglobulinemia will not be excluded Presence or suspicion of active infection Type 1 or type 2 diabetes mellitus Treatment with any investigational agent within 4 weeks of screening or 5 half-lives of the investigational drug (whichever is longer) Receipt of a live vaccine within 4 weeks prior to randomization Previous Treatment with Rituximab (MabThera®/Rituxan®) or another B-cell depleting antibody History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies Human immunodeficiency virus (HIV) Hepatitis B or C History of recurrent significant or recurrent bacterial infections Known active bacterial, viral fungal mycobacterial, or other infection (including tuberculosis or atypical mycobacterial disease, but excluding fungal infections of nail beds) or any major episode of infection requiring hospitalization or treatment with i.v. antibiotics within 4 weeks of screening or oral antibiotics within 2 weeks prior to screening Ongoing use of high dose steroids(> 10 mg/day)or unstable steroid dose past 4 weeks Lack of peripheral venous access Drug,alcohol or chemical abuse within 6 months prior to screening Pregnancy(negative serum pregnancy test performed all women of childbearing potential within 7 days of treatment) Lactation Concomitant malignancies/previous malignancies within last 5 years, with the exception of adequately treated basal/squamous cell carcinoma of skin or carcinoma of cervix Major psychiatric disorder Significant cardiac or pulmonary disease Any other disease, metabolic dysfunction, physical examination finding, or clinical laboratory suspicion of a disease/condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or render the patient at high risk from treatment complications Inability to comply with study and follow-up procedures Laboratory Exclusion Criteria (Screening): Hemoglobin:< 8.5 gm/dL Platelets:< 100,000/mm Total bilirubin,AST/alkaline phosphatase > 2.5 x Upper Limit of Normal unless related to primary disease Positive Hepatitis B or C serology Positive HIV
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
John J. Dillon, M.D., M.S.
Organizational Affiliation
Mayo Clinic
Official's Role
Principal Investigator
Facility Information:
Facility Name
Mayo Clinic
City
Rochester
State/Province
Minnesota
ZIP/Postal Code
55905
Country
United States

12. IPD Sharing Statement

Links:
URL
http://clinicaltrials.mayo.edu
Description
Mayo Clinic Clinical Trials

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Pilot Study of Rituximab for Membranoproliferative Glomerulonephritis

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