Safety and Efficacy of Desensitization Therapy in Sensitized Participants Awaiting Heart Transplantation

A Prospective, Randomized, Multicenter, Two-Parallel Arm Study Evaluating the Overall Efficacy and Safety of Desensitization Therapy on Selected Patients Awaiting Heart Transplantation

The primary objective is to evaluate the efficacy of desensitization therapy, which includes VELCADE® (bortezomib) and plasmapheresis, on select sensitized patients awaiting heart transplantation.

Study Overview

Detailed Description

Bortezomib works by decreasing plasma cells in the blood. Plasma cells produce antibodies. Plasmapheresis is a procedure that removes antibodies from the blood. Plasma cells and antibodies produced by plasma cells can be involved in organ rejection after transplantation.

This trial will evaluate if decreasing plasma cells and antibodies with bortezomib and plasmapheresis can reduce complications while participants are waiting for their heart transplant. The evaluation of efficacy is defined by a lower complication rate while on the heart transplant waitlist.

Study Type

Interventional

Enrollment (Actual)

2

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Beverly Hills, California, United States, 90211
        • Cedars Sinai Heart Institute
      • San Francisco, California, United States, 94143
        • University of California at San Francisco
    • Connecticut
      • New Haven, Connecticut, United States, 06510
        • Yale New Haven Hospital
    • Illinois
      • Chicago, Illinois, United States, 60612
        • Rush University Medical Center
      • Chicago, Illinois, United States, 60611
        • Northwestern University Feinberg School of Medicine
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital
    • Minnesota
      • Minneapolis, Minnesota, United States, 55407
        • Minneapolis Heart Institute
    • New York
      • New York, New York, United States, 10029
        • Mount Sinai School of Medicine
    • Ohio
      • Cleveland, Ohio, United States, 44195
        • Cleveland Clinic Foundation
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • University of Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19102
        • Drexel University College of Medicine
    • Texas
      • Houston, Texas, United States, 77030
        • The Methodist Hospital
    • Utah
      • Murray, Utah, United States, 84157
        • Intermountain Medical Center
      • Salt Lake City, Utah, United States, 84132
        • University of Utah

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subject must be able to understand and provide informed consent;
  • Candidate (as recipient) for a primary heart transplant (single organ transplant);
  • Calculated panel reactive antibody (cPRA) of greater than 30% with a threshold using mean fluorescent intensity (MFI) of 3,000 or standard fluorescence intensity (SFI) of 60,000;
  • Status 1 (1A or 1B) enrollment and randomization to occur within 2 weeks after status 1 listing;
  • Female subject is either postmenopausal for at least 1 year before the screening visit, is surgically sterilized or if they are of childbearing potential, agree to practice 2 effective methods of contraception from the time of signing the informed consent form through 30 days after the last dose of bortezomib, or agree to completely abstain from heterosexual intercourse;
  • Male subjects, even if surgically sterilized (i.e., status postvasectomy) must agree to 1 of the following: practice effective barrier contraception during the entire study treatment period and through a minimum of 30 days after the last dose of study drug, or completely abstain from heterosexual intercourse;
  • Negative test for HIV (human immunodeficiency virus), HBsAg (hepatitis B surface antigen), HBcAb (hepatitis B core antibody), and HCV (hepatitis C virus) antibodies within 6 months prior to study entry.

Exclusion Criteria:

  • Recipient of multiple solid organ or tissue transplants;
  • Prior history of organ transplantation;
  • Women of childbearing potential with a positive serum β-human chorionic gonadotropin (β-hCG) pregnancy test.Pregnancy testing is not required for postmenopausal or surgically sterilized women;
  • Currently breast-feeding a child or plans to become pregnant during the timeframe of the study follow-up period;
  • Subject has a hypersensitivity to VELCADE® (bortezomib), boron, or mannitol;
  • Active systemic infection at time of enrollment;
  • Any history of serologic positivity to HIV, HBsAg, HBcAb and HCV Ab;
  • History of malignancy except when noted by an oncology specialist that tumor recurrence is low based on tumor type, response to therapy and negative metastatic work-up;
  • Radiation therapy within 3 weeks before randomization. Enrollment of subjects who require concurrent radiotherapy (which must be localized in its field size) should be deferred until the radiotherapy is completed and 3 weeks have elapsed since the last date of therapy;
  • Subjects with a platelet count of less than 75,000 within 7 days prior to enrollment;
  • Subjects with an absolute neutrophil count (ANC) of less than 1,500 within 7 days prior to enrollment;
  • Subjects with >1.5 x ULN (upper limit of normal) total bilirubin;
  • Subjects with any grade or history of neuropathy;
  • Any condition that, in the opinion of the investigator, would interfere with the subject's ability to comply with study requirements;
  • Participation in another interventional clinical trial or requiring treatment using un-marketed investigational drug(s) within 14 days of start of this trial and throughout the duration of this trial.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: No Desensitization Therapy
Subject(s) randomized to no desensitization therapy pre-transplant.
Experimental: Desensitization Therapy

Subject(s) randomized to desensitization therapy pre-transplant.

Desensitization therapy regimen pre-transplant: Plasmapheresis for 3 consecutive days (treatment days 0, 1 and 2) followed by concomitant bortezomib dosed at 1.3 mg/m^2 as a 3 to 5 second bolus intravenous injection on treatment days 0, 3, 7 and 10. The first dose of bortezomib is administered between 4-8 hours after the first plasmapheresis session is completed and there must be at least 96 hours between the second and third dose of bortezomib.

Bortezomib dosed at 1.3 mg/m^2 as a 3 to 5 second bolus administered by intravenous injection on treatment days 0, 3, 7 and 10. The first dose of bortezomib is administered between 4-8 hours after the first plasmapheresis session is completed and there must be at least 96 hours between the second and third dose of bortezomib.
Other Names:
  • VELCADE®
Plasmapheresis for 3 consecutive days (treatment days 0, 1 and 2) followed by concomitant bortezomib dosed at 1.3 mg/m^2 as a 3 to 5 second bolus administered by intravenous injection on treatment days 0, 3, 7 and 10. The first dose of bortezomib is administered between 4-8 hours after the first plasmapheresis session is completed and there must be at least 96 hours between the second and third dose of bortezomib.
Other Names:
  • apheresis (plasma)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Composite of Incidence of the Following Events in Subjects
Time Frame: At transplant, or 90 days post-randomization, whichever occurs first
  • Death,
  • Removal from the transplant waiting list for any reason except improvement of cardiac function,
  • Initiation of any mechanical circulatory support device,
  • Severe infection requiring intravenous antibiotics,
  • Cerebral vascular accident,
  • Acute renal failure requiring dialysis.
At transplant, or 90 days post-randomization, whichever occurs first

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time From Wait Listing to Heart Transplantation
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Change in Calculated PRA (cPRA) From Wait Listing to Transplantation
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Incidence of Death
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Incidence of Removal From Transplant Waiting List for Any Reason Except Improvement of Cardiac Function
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Incidence of Initiation of Any Mechanical Circulatory Support Device
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Incidence of Severe Infection Requiring Intravenous Antibiotics
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Incidence of Cerebral Vascular Accident
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Incidence of Acute Renal Failure Requiring Hemodialysis
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Incidence of Administering Desensitization Therapy Beyond 90 Days After Randomization
Time Frame: At transplant, or 1 year post-randomization, whichever occurs first
At transplant, or 1 year post-randomization, whichever occurs first
Development of Angiographically Evident Cardiac Allograft Vasculopathy at 1 Year
Time Frame: 24 and 52 weeks post-transplantation
24 and 52 weeks post-transplantation
Incidence of Serious Infections Requiring Intravenous Antimicrobial Therapy
Time Frame: 24 and 52 weeks post-transplantation
24 and 52 weeks post-transplantation
Number of Subjects on Left Ventricular Assist Devices (LVAD) Compared to Those Not on LVADs
Time Frame: 24 and 52 weeks post-transplantation
24 and 52 weeks post-transplantation
Cardiac Dysfunction as Reflected in the Left Ventricular Ejection Fractions < 40% by Echocardiography, Angiogram or Nuclear Testing.
Time Frame: 24 and 52 weeks:
24 and 52 weeks:
Incidence of Post-Transplant Lymphoproliferative Disorder (PTLD)
Time Frame: 24 and 52 weeks post-transplantation
24 and 52 weeks post-transplantation
Death
Time Frame: 24 and 52 weeks post-transplantation
24 and 52 weeks post-transplantation
Re-transplantation or Re-listed for Transplantation
Time Frame: 24 and 52 weeks post-transplantation
24 and 52 weeks post-transplantation
Incidence of Hospitalizations
Time Frame: 24 and 52 weeks post-transplantation
24 and 52 weeks post-transplantation
Incidence of Rejection Episodes Per Subject and Freedom From Rejection
Time Frame: 24 and 52 weeks post-transplantation

Rejection is defined as follows:

  • Biopsy proven acute rejection (BPAR) of any grade (cellular rejection per 2004 ISHLT [International Society of Heart and Lung Transplantation] grading scale),
  • BPAR (individual grades),
  • BPAR (Biopsy Proven Acute Rejection) > 2R
  • antibody mediated rejection (AMR),
  • Any treated rejection,
  • Rejection associated with hemodynamic compromise (HDC).
24 and 52 weeks post-transplantation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Jon A Kobashigawa, MD, Cedars-Sinai Heart Institute

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2013

Primary Completion (Actual)

July 1, 2014

Study Completion (Actual)

July 1, 2014

Study Registration Dates

First Submitted

January 14, 2013

First Submitted That Met QC Criteria

January 14, 2013

First Posted (Estimate)

January 16, 2013

Study Record Updates

Last Update Posted (Estimate)

November 11, 2015

Last Update Submitted That Met QC Criteria

October 14, 2015

Last Verified

October 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DAIT CTOT-13
  • U01AI063594 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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