Moderate-dose Cyclophosphamide for Childhood Acquired Aplastic Anemia

November 21, 2013 updated by: Xiaofan Zhu
Severe aplastic anemia (SAA)is characterized by the depletion of hematopoietic precursors associated with life-threatening complications. High-dose cyclophosphamide has been found to yield a complete response (CR) in adults and children with SAA.However, the optimal dosage of cyclophosphamide for patients in childhood remains unclear. So we explore the ideal dosage of cyclophosphamide for the treatment of children with SAA.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Tisdale et al. (2000,2002) attempted to compare immunosuppression using ATG/CSA with high-dose cyclophosphamide (50 mg/kg/d for 4 consecutive days) plus CSA in a randomized trial of newly diagnosed adults with SAA. Both groups received CSA as part of the treatment regimen. However, the trial was terminated prematurely due to excessive morbidity among the patients treated in the cyclophosphamide arm. They documented that invasive fungal infections were severe among the cyclophosphamide group. Between January 2008 through May 2009, in our department, nine pediatric patients with a diagnosis of SAA were enrolled a study with lower dose of cyclophosphamide with 30mg/kg/day for 4 consecutive days and combination with CSA, this study shows promise for children with severe aplastic anemia.Now we want explore the dosage of cyclophosphamide.

Study Type

Interventional

Enrollment (Anticipated)

30

Phase

  • Phase 4

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

  • China
    • Tianjin
      • Tianjin, Tianjin, China, 300020
        • Department of Pediatrics,Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College

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

1 year to 18 years (ADULT, CHILD)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Acquired Childhood Severe Aplastic Anemia (SAA)

Exclusion Criteria:

  • not Childhood and Acquired Severe Aplastic Anemia

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: NON_RANDOMIZED
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: moderate-dose cyclophosphomide
Drug: cyclophosphamide,cyclosporine A

Drug,cyclophosphamide,cyclophosphamide (30 mg/kg/day) administered intravenously (IV) over 1 hr for 4 consecutive days Drug,cyclosporine A,5mg-12mg/kg.d,CSA was administered orally 40 days after the fourth dose of cyclophosphamide and maintained for 3 years. The dose of CSA was adjusted to maintain trough drug concentration above 150 μg/L and peak drug concentration above 300 μg/L.

Drug, human granulocyte colony-stimulating factor (rhG-CSF), 5 μg/kg/day subcutaneously starting 24 hrs after the fourth dose of cyclophosphamide, and it was withdrawed when ANC was >1×109/L.

Other Names:
  • Drug,Mesnaum

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The reponse of Moderate-dose Cyclophosphamide for Childhood Acquired Aplastic Anemia
Time Frame: 36 months
Complete response (CR) was defined as achieving normal levels of hemoglobin adjusted for age, platelet count >100×109/L, and ANC>1.5×109/L. Partial response (PR) was defined as transfusion independence, reticulocyte count >30×109/L, platelet count >30×109/L, and ANC >0.5×109/L above the baseline. Persistence of transfusion requirement or death was evidence of no response (NR).
36 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The side effect of Moderate-dose Cyclophosphamide for Childhood Acquired Aplastic Anemia
Time Frame: 36 months

To report the death rate and the death cause , the infection rate and the pathogenic bacteria, especialy the fungal infection rate.

To report other toxicity.
36 months

Collaborators and Investigators

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

Sponsor

Xiaofan Zhu

Investigators

  • Principal Investigator: Xiaifan Zhu, MD, Department of Pediatrics, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences

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

March 1, 2012

Primary Completion (Anticipated)

March 1, 2015

Study Completion (Anticipated)

March 1, 2015

Study Registration Dates

First Submitted

November 21, 2013

First Submitted That Met QC Criteria

November 21, 2013

First Posted (Estimate)

November 26, 2013

Study Record Updates

Last Update Posted (Estimate)

November 26, 2013

Last Update Submitted That Met QC Criteria

November 21, 2013

Last Verified

November 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • YL20102601

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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