Evaluation of Spectra Optia Red Blood Cell Exchange in Sickle Cell Patients (ESSENTIAL)

July 10, 2014 updated by: Terumo BCT

Evaluation of the Spectra Optia Apheresis Red Blood Cell Exchange Protocol in Patients With Sickle Cell Disease.

The purpose of this study is to evaluate the performance of the Spectra Optia system red blood cell exchange (RBCx) protocols (exchange and depletion/exchange) in study participants with sickle cell disease.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Evaluate the performance of the Spectra Optia system red blood cell exchange (RBCx) protocols (exchange and depletion/exchange) in study participants with sickle cell disease. Open label design.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
73

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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

  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35233
        • Children's of Alabama
    • California
      • Oakland, California, United States, 94609
        • Children's Hospital and Research Center at Oakland
    • Colorado
      • Aurora, Colorado, United States, 80045
        • University of Colorado at Denver
    • Kentucky
      • Louisville, Kentucky, United States, 40202
        • Kosair Children's Hospital
    • Maryland
      • Baltimore, Maryland, United States, 21205
        • Johns Hopkins Medical

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

12 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • At least 12 years old
  • Enrolled in a program of regular red blood cell exchange (RBCx) to prevent symptoms/complications of sickle cell disease (SCD) or Initiating a program of regular RBCx or Receiving RBCx as a pre-surgical procedure.
  • Medically stable
  • Previous documentation of diagnosis by hemoglobin electrophoresis of a type of sickle cell disorder requiring RBCx.
  • Sufficient vascular access to accommodate the RBCx procedure as determined by the apheresis technician performing the procedure or phlebotomist responsible for obtaining intravenous access.
  • Availability of sickle trait negative, leukoreduced, ABO blood group, Rhesus factor D (Rh (D)) compatible, unexpired replacement blood. See Glossary for definition of replacement blood.
  • Able to commit to the study follow-up schedule.
  • Agree to report adverse events (AEs) during the required reporting period.

Exclusion Criteria:

  • Inability to obtain informed consent/assent from patient, or permission from parent or guardian.
  • Pregnancy (negative serum pregnancy test required for females of childbearing potential).
  • Life expectancy is fewer than 30 days from time of procedure.
  • Incarcerated or a ward of the court.
  • Refusal of blood products.
  • Failure to comply with site standard requirements for cessation of medications (e.g., angiotensin converting enzyme (ACE) inhibitors) that interfere with or increase risk of RBCx procedures.
  • History of drug or alcohol abuse that, in the opinion of the investigator, could affect the ability of the patient to comply with the study requirements Inability to comply with the protocol in the opinion of the investigator.

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Red cell exchange in sickle cell
Open arm; Red cell blood exchange for patients with sickle cell disease
Device: Red blood cell exchange in sickle cell
One Red Blood Cell Exchange using Spectra Optia Apheresis System per enrolled patient
Other Names:
  • Specta Optia Apheresis System

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Mean Ratio Actual Fraction of Cells Remaining (FCRa; as Measured by Post-Procedure % HbS) to the Predicted Fraction of Cells Remaining (FCRp; as Predicted by the Spectra Optia System FCR Algorithm Multiplied by the Pre-Procedure % HbS)
Time Frame: Length of the procedure
The primary endpoint evaluated the mean ratio of the Actual Fraction of Cells Remaining (FCRa: as measured by Post-Procedure % HbS) to the Predicted Fraction of Cells Remaining (FCRp: as predicted by the Spectra Optia system FCR algorithm multiplied by the Pre-Procedure % HbS), in the evaluable population (60 pts). The pre-defined range for the mean ratio of the FCRa to the FCRp was 0.75 to 1.25.
Length of the procedure

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Procedural Success of the Spectra Optia System in the Evaluable Population
Time Frame: Length of the procedure
The procedural success of the Spectra Optia System is defined as the ability of the device to complete a red blood cell exchange (RBCx) and to obtain a satisfactory exchange by lowering the patient's hemoglobin S, as determined by the investigator in the evaluable population (60 pts).
Length of the procedure
Spectra Optia System's Ability to Achieve the Desired Final Hematocrit in the Evaluable Population
Time Frame: Length of the procedure
Measurement of the patient post-procedure hematocrit compared to the final target hematocrit calculated by the Spectra Optia Apheresis System. Final target hematocrit was calculated by tracking the number of red cells coming into the system versus the number of red cells removed.
Length of the procedure
Device-related Serious Adverse Events (SAE) in the Full Analysis Set
Time Frame: upon signing consent to 24 hours post-procedure
Device-related serious adverse events (SAE) in the Full Analysis Set (72 patients).
upon signing consent to 24 hours post-procedure

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Terumo BCT

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Keith Quirolo, MD, Children's Hospital and Research Center at Oakland

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.

General Publications

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2013

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 27, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 28, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 29, 2012

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 14, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 10, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2014

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CTS-5001

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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