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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00885833
Other study ID # KSPHO-S0701
Secondary ID
Status Completed
Phase Phase 1/Phase 2
First received April 21, 2009
Last updated July 11, 2014
Start date February 2007
Est. completion date March 2012

Study information

Verified date July 2014
Source The Korean Society of Pediatric Hematology Oncology
Contact n/a
Is FDA regulated No
Health authority Korea: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

Wiskott-Aldrich syndrome (WAS) is a rare X-linked congenital immune-deficiency syndrome and hematopoietic stem cell transplantation (HSCT) has become a curative modality. But the transplant with the conventional conditioning resulted in high incidence of treatment related toxicities and non-myeloablative conditioning resulted in high incidence of engraftment failure. Recently, fludarabine based reduced toxicity myeloablative conditioning regimen was developed for adult myeloid malignancies with promising result of good engraftment and low treatment related toxicities. To increase the engraftment potential without serious complication, reduced toxicity myeloablative conditioning regimen composed of fludarabine, busulfan, and thymoglobulin is designed for Wiskott-Aldrich syndrome.


Description:

Wiskott-Aldrich syndrome (WAS) is an rare X-linked congenital immune-deficiency syndrome characterized by the triad of recurrent infection, eczema and thrombocytopenia with small size of platelet (Puck JM, 2006). Clinical studies revealed high rate of autoimmune disorder and malignancy in WAS (Ochs HD, 2006). The identification of the molecular defect in 1994 (Derry JM, 1994) has broadened the clinical spectrum of the syndrome to include chronic or intermittent X-linked thrombocytopenia (XLT), a relatively mild form of WAS and X-lined neutropenia caused by an arrest of myelopoiesis (Ochs HD, 2006).

The incidence of WAS in Korea was very low and only 6 patients diagnosed between 2001 and 2005 (Kim JG, 2006).

Conventional treatments for WAS such as prophylactic antibiotics and immune globin for infection and platelet transfusion for bleeding were not so successful (Thrasher AJ, 2000). Bone marrow transplantation (BMT) from an HLA-matched related donor is an effective treatment (Filipovich AH, 2001) and patients without appropriate related donor could receive alternative stem cell source such as matched unrelated donor or cord blood. But the transplant with the alternative donor needed more intensive conditioning to overcome the hematologic and immunologic barrier with increased treatment related toxicity. Further progress depends in particular on the development of alternative preparative conditioning regimens which allow stable engraftment of donor precursor cells with minimal systemic toxic side effects (Friedrich W, 2004).

Recently, we reported successful unrelated bone marrow transplantation in a boy with WAS with reduced toxicity myeloablative conditioning regimen to increase the engraftment potential without serious complication (Kang, 2008), and extended to multicenter phase I/II pilot study with this reduced toxicity myeloablative conditioning regimen in the HSCT for WAS.


Recruitment information / eligibility

Status Completed
Enrollment 5
Est. completion date March 2012
Est. primary completion date March 2012
Accepts healthy volunteers No
Gender Both
Age group 1 Year to 25 Years
Eligibility Inclusion Criteria:

1. Diagnosis of Wiskott-Aldrich syndrome with gene analysis.

2. Indicated for hematopoietic stem cell transplantation.

3. Age: no limitation.

4. Performance status: ECOG 0-2.

5. Patients must be free of significant functional deficits in major organs, but the following eligibility criteria may be modified in individual cases:

- Heart: a shortening fraction > 30%, ejection fraction > 45%.

- Liver: total bilirubin < 2 × upper limit of normal; ALT < 3 × upper limit of normal.

- Kidney: creatinine <2 × normal or a creatinine clearance (GFR) > 60 ml/min/1.73m2.

6. Patients must lack any active viral infections or active fungal infection.

7. Appropriate hematopoietic stem cell donor is available.

8. Patients (or one of parents if patients age < 19) should sign informed consent.

Exclusion Criteria:

1. Pregnant or nursing women.

2. Malignant (except acute myeloid leukemia) or nonmalignant illness that is uncontrolled or whose control may be jeopardized by complications of study therapy.

3. Psychiatric disorder that would preclude compliance.

Study Design

Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Drug:
Fludarabine, Busulfan, Thymoglobulin
fludarabine (40 mg/m2 once daily i.v. on days -8, -7, -6, -5, -4 & -3) busulfan (0.8 mg/kg every 6 hours i.v. on days -6, -5, -4, & -3) thymoglobulin (2.5 mg/kg once daily i.v. on days -8, -7, -6 for cord blood and on days -4, -3, -2 for bone marrow or mobilized peripheral blood)

Locations

Country Name City State
Korea, Republic of Seoul National University Hospital Seoul Chongno-gu

Sponsors (1)

Lead Sponsor Collaborator
The Korean Society of Pediatric Hematology Oncology

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type Measure Description Time frame Safety issue
Primary To evaluate the engraftment potential of fludarabine, busulfan plus thymoglobulin conditioning regimen for HSCT in WAS. Feb. 2007 to Jan. 2012 No
Primary To evaluate the incidence and severity of toxicity and treatment related mortality. Feb. 2007 to Jan. 2012 No
Secondary To evaluate overall and event free survival rate. Feb. 2007 to Jan. 2012 No
Secondary To evaluate acute and chronic graft versus host disease (GVHD). Feb. 2007 to Jan. 2012 No
Secondary To evaluate immunologic recovery after HSCT. Feb. 2007 to Jan. 2012 No
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