Evaluation of Plasmatic Levels of Busulfan in Patients Undergoing Hematopoietic Stem Cell Transplantation

December 2, 2014 updated by: Iracema Esteves, Hospital Israelita Albert Einstein
The purpose of this prospective study is evaluate the best dose of busulfan for each patient undergoing Haematopoietic Stem Cell Transplantation

Study Overview

Status

Status

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

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

  • Busulfan is an alkylating antineoplastic agent used commonly during the conditioning regimen in patients undergoing Haematopoietic Stem Cell Transplantation (HSCT). Due to the fact that this drug has a variable metabolism in different individuals, the investigators performed the plasmatic dosage of chemotherapy before starting the conditioning regimen (test dose) as a way to predict the best dose to them during the conditioning. Busulfan toxicities depends on the "Area Under Curve" and Concentration Steady State (CSS).
  • The investigators randomized in groups according to the route of drug administration: per oral and intravenously. Dose test will be performed before conditioning and othe pharmacokinetics (Pk) study will be made in the first day of conditioning. The test dose of P.O busulfan will be 1 mg/Kg/dose and 32 mg/m2 for I.V busulfan. The target dose of busulfan during the conditioning will depends on the Pk obtained during the test dose. In the first day of regimen, other samples will be analysed and the new AUC will be adjusted. We will have a control group who have never performed monitoring before (retrospective group)
  • Test Dose for oral busulfan will be performed with peripheral blood samples at the time: 0h (before taking busulfan), 30', 1h, 1,5h, 2h, 3h, 4h, 5h and 6h. In the first day of conditioning other samples will be collected again in the same moments.
  • Test dose for I.V busulfan will be performed on time 0h, 30', 45', 1h, 2h, 3h, 4h, 5h, 6h and 8h after receiving I.V busulfan. If the patients will receive I.V busulfan during conditioning, the blood samples should be collected on time 0h, 30', 1h, 2h, 3h, 4h, 5h, 6h, 7h and 8h after taking busulfan. The blood samples will be centrifuged (4º C/ 3200 rpm/10 minutes) and analysed.
  • Patients will be monitored with pharmacokinetic's drug and clinical outcomes. The investigators will evaluate acute and chronic toxicities after Stem Cell Transplantation.

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 (Anticipated)

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.
100

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.
  • Phase 2
  • Phase 3

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Brazil
    • SP
      • Sao Paulo, SP, Brazil, 05651901
        • Recruiting
        • Hospital Israelita Albert Einstein
        • Contact:
        • Contact:
        • Sub-Investigator:
          • Fabio R Kerbauy, Doctor
        • Principal Investigator:
          • Nelson Hamerschlak, Doctor
        • Sub-Investigator:
          • Iracema Esteves, Doctor

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of hematologic or non-hematologic pathology using as part of the conditioning regimen busulfan;
  • Men, women and children regardless of age;
  • Performance Status> 80 or ECOG <2;
  • Total bilirubin <2 mg / dl and transaminases <3 times the upper limit of normal;
  • Creatinine <1.5 mg / dl;
  • LVEF> 50% by echocardiogram or MUGA at rest;
  • Pulmonary function test with FEV1> 70%;
  • Consent form signed before the start of any specific procedure.

Exclusion Criteria:

  • Presence of infectious process in uncontrolled activity;
  • Presence of psychiatric disorder;
  • Pregnancy;

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

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.
Other: Orally Busulfan PK
Evaluate the Pharmacokinetics of orally busulfan
Other: Analyze the pharmacokinetics of busulfan for transplantation
Evaluate the Bu pharmacokinetics (PK) when the drug will be received by P.O or I.V and we will establish the target "Area Under Curve- AUC" based on a single daily dose (test dose) before HSCT. The test dose of orally Bu is 1 mg/Kg and the blood samples are collected and processed in time: 0h, 30 min, 1h, 1,5h, 2h, 3h, 4h, 5h and 6h after drug intake. After extraction of the plasma samples busulfan, quantitative analyzes of busulfan on human plasma will be performed by the liquid chromatograph. For the patients that will receive intravenously busulfan, the test dose is 32 mg/m2 and blood samples are collected in time: 0h, 30', 45', 1h, 2h, 3h, 4h, 5h, 6h and 8h after drug intake. The dose during the conditioning will depend on the test dose and the AUC target.
Other Names:
  • Myleran
  • Busilvex
  • Busulfan dosing
  • Busulfan Pharmacokinetics
Other: Intravenously Busulfan PK
Evaluate the Pharmacokinetics of intravenously busulfan
Other: Analyze the pharmacokinetics of busulfan for transplantation
Evaluate the Bu pharmacokinetics (PK) when the drug will be received by P.O or I.V and we will establish the target "Area Under Curve- AUC" based on a single daily dose (test dose) before HSCT. The test dose of orally Bu is 1 mg/Kg and the blood samples are collected and processed in time: 0h, 30 min, 1h, 1,5h, 2h, 3h, 4h, 5h and 6h after drug intake. After extraction of the plasma samples busulfan, quantitative analyzes of busulfan on human plasma will be performed by the liquid chromatograph. For the patients that will receive intravenously busulfan, the test dose is 32 mg/m2 and blood samples are collected in time: 0h, 30', 45', 1h, 2h, 3h, 4h, 5h, 6h and 8h after drug intake. The dose during the conditioning will depend on the test dose and the AUC target.
Other Names:
  • Myleran
  • Busilvex
  • Busulfan dosing
  • Busulfan Pharmacokinetics

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
Dosing of plasmatic levels of busulfan
Time Frame: 2 years
To study the effectiveness dosing of busulfan plasma levels during the administration of orally busulfan or intravenous prior to HSCT (test dose) and correlate with the respective plasma measurements in the first days of conditioning
2 years

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
Overall Survival
Time Frame: 5 years
Evaluation of 5-years overall survival in patients who underwent different formulations of busulfan during stem Cell Transplantation
5 years
Cumulative incidence of relapse and non relapse mortality
Time Frame: 5 years
Evaluate 5-years cumulative incidence of relapse and non relapse mortality in patients that underwent stem cell transplantation with busulfan in conditioning regimen
5 years
Disease Free Survival
Time Frame: 1 year
Evaluate 1-year Disease Free Survival in patients that underwent stem cell transplantation with busulfan in conditioning regimen who enter complete remission after
1 year
Toxicity
Time Frame: 1 year
Evaluate hematological and non hematological toxicity in patients that underwent stem cell transplantation with busulfan in conditioning regimen
1 year

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.
Hospital Israelita Albert Einstein

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.
  • Study Chair: Nelson Hamerschlak, Doctor, Hospital Israelita Albert Einstein

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.
March 1, 2010

Primary Completion (Anticipated)

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.
December 1, 2014

Study Completion (Anticipated)

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.
December 1, 2014

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).
February 25, 2013

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.
February 27, 2013

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.
February 28, 2013

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.
December 3, 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.
December 2, 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.
December 1, 2014

More Information

Terms related to this study

Keywords

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.
  • Busulfan-2013

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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