Interleukin-2 Treatment for Wiskott-Aldrich Syndrome (WAS)
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Purpose
Context: Wiskott-Aldrich syndrome (WAS) is a fatal, devastating disease with ill-defined treatment modalities, which affects young boys. Classic WAS is characterized by a clinical triad of thrombocytopenia, eczema and severe, recurrent infections. Despite diagnostic and therapeutic advances most WAS patients die at less than 12 years of age due to infections, hemorrhage, malignancy or complications from treatments. WAS patients suffer from herpesvirus infections as a result of poor Natural Killer (NK) cell function (cytotoxicity). In the laboratory, the investigators have seen correction of WAS Natural Killer Cell (NK) function after treatment with Interleukin-2 (IL-2).
Objectives: Initiate a prospective clinical trial by treating WAS subjects with IL-2 and using safety as the primary endpoint. Restoration of NK cell cytotoxicity and effects on cytoskeletal dynamics are secondary endpoints. The investigators will also observe patient clinical status (eczema, infections, use of treatment dose antibiotics, food allergies, etc).
Study Design/Setting/Participants: This is a prospective clinical trial treating 9 WAS subjects in the Clinical Translational Research Center (CTRC) with IL-2.
Intervention: The investigators propose to subcutaneously administer 0.5 Million Units (MU)/m2 of IL-2 daily to WAS subjects for 5 days. Research treatment will be repeated 2 and 4 months later. Inter-patient dose escalation will be employed to 1 MU/m2 and/or 2 MU/m2 based on safety as the primary endpoint.
Study Measures: The investigators will observe safety and tolerability measures and perform assays on subject blood samples prior to and after research treatment to observe improvement in NK cell function.
| Condition | Intervention | Phase |
|---|---|---|
|
Wiskott-Aldrich Syndrome (WAS) X-linked Thrombocytopenia |
Drug: Interleukin-2 |
Phase 1 |
| Study Type: | Interventional |
| Study Design: | Endpoint Classification: Safety/Efficacy Study Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Treatment |
| Official Title: | Reinstituting Natural Killer Cell Cytotoxicity and Cytoskeletal Dynamics in Wiskott-Aldrich Syndrome With IL-2 Therapy |
- Safety and Tolerability [ Time Frame: One year ] [ Designated as safety issue: Yes ]
- Evaluate effects on cytoskeletal dynamics [ Time Frame: One year ] [ Designated as safety issue: No ]
- Requirement for treatment dose antibiotics [ Time Frame: One year ] [ Designated as safety issue: No ]
- Number and severity of infections [ Time Frame: One year ] [ Designated as safety issue: No ]
- Eczema [ Time Frame: One year ] [ Designated as safety issue: No ]
- Food allergies [ Time Frame: One year ] [ Designated as safety issue: No ]
- NK cell cytotoxicity [ Time Frame: 1 year ] [ Designated as safety issue: No ]
| Estimated Enrollment: | 9 |
| Study Start Date: | October 2008 |
| Estimated Study Completion Date: | October 2015 |
| Estimated Primary Completion Date: | October 2015 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: Interleukin-2
We propose to subcutaneously administer 0.5 MU/m2 of IL-2 daily to WAS subjects for 5 days. Research treatment will be repeated 2 and 4 months later. Inter-patient dose escalation will be employed to 1 MU/m2 and/or 2 MU/m2 based on safety as the primary endpoint.
|
Drug: Interleukin-2
We propose to subcutaneously administer 0.5 MU/m2 of IL-2 daily to WAS subjects for 5 days. Research treatment will be repeated 2 and 4 months later. Inter-patient dose escalation will be employed to 1 MU/m2 and/or 2 MU/m2 based on safety as the primary endpoint.
Other Names:
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Detailed Description:
The Wiskott-Aldrich syndrome (WAS) is a fatal genetic disease of the immune system that results from a mutation of the WAS protein (WASp) gene. Immune cells that carry this mutation have a decreased ability to reorganize filamentous actin (F-actin) after activation. As a result there are a number of defective immunologic functions, some of which result in deficient host defense. The investigators have identified a pervasive deficit in natural killer (NK) cell cytotoxicity in WAS patients. WAS patients suffer from conditions that are hallmarks of NK cell deficiencies. These include severe herpesvirus infections and B cell malignancies. Our lab and others have also found that exposure of WAS subject NK cells to IL-2 in vitro restores NK cell function and allows for normal F-actin reorganization. Thus, the investigators propose a proof of principal clinical trial to treat WAS subjects with IL-2 to determine safety and efficacy of IL-2 in this population and if NK cell function is restored ex vivo. If IL-2 can circumvent a defective WASp to restore NK cell function, the investigators will propose a larger NIH funded efficacy trial of IL-2 in WAS. The investigators will also use the in vivo treatment of WAS subjects to forward our mechanistic studies of how IL-2 may facilitate F-actin reorganization in the absence of WASp function.
Eligibility| Ages Eligible for Study: | 24 Months and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age: Subjects age greater than 24 months
- Weight: Subjects greater than 12.5 kilograms
- Disease status: WAS classified as Grade 1-4
- Informed Consent: Written informed consent of the subject (if an adult) or parental permission, and assent of the child subject provided justification is made for the inclusion of children in the study
Exclusion Criteria:
- Prior or planned hematopoetic transplant
- WAS classified as currently Grade 5 (autoimmune disease or malignancy)
- Known previous reaction to IL-2
- Subjects taking nephrotoxic, cytotoxic, cardiotoxic, or hepatotoxic medications (including medications for hypertension)
- Subjects currently taking corticosteroids (not included here: topical and inhaled corticosteroids)
- Subjects taking Interferon alpha
- Use of any other investigational agent in the last 30 days
- Women of childbearing potential not using contraception method(s), as well as women who are breastfeeding
- Subjects with abnormal cardiac, hepatic and Central Nervous System (CNS) function
Contacts and Locations| Contact: Brenda Gwafila, RN | 267-426-9639 | gwafilab@email.chop.edu |
| Contact: Soma Jyonouchi, MD | 215-590-2549 | jyonouchi@mail.med.upenn.edu |
| United States, Pennsylvania | |
| Children's Hospital of Philadelphia | Recruiting |
| Philadelphia, Pennsylvania, United States, 19104 | |
| Contact: Brenda Gwafila, RN 267-426-9639 gwafilab@email.chop.edu | |
| Contact: Denise DePaul, RN 267-426-6845 depaul@email.chop.edu | |
| Sub-Investigator: Kimberly Nichols, MD | |
| Sub-Investigator: Paul R Gallagher, PhD | |
| Sub-Investigator: Rushani Saltzman, MD | |
| Sub-Investigator: Antonella Cianferoni, MD | |
| Sub-Investigator: Michael Keller, MD | |
| Principal Investigator: Soma Jyonouchi, MD | |
| Hospital of the University of Pennsylvania | Recruiting |
| Philadelphia, Pennsylvania, United States, 19104 | |
| Contact: Brenda Gwafila, RN 267-426-9636 ext 69636 gwafilab@email.chop.edu | |
| Contact: Denise DePaul, RN 267 426 6845 ext 66842 DePaul@email.chop.edu | |
| Principal Investigator: Benjamin Soule, MD | |
| Principal Investigator: | Soma Jyonouchi, MD | Children's Hospital of Philadelphia |
More Information
Publications:
| Responsible Party: | Soma Jyonouchi, Soma Jyonouchi,MD, Children's Hospital of Philadelphia |
| ClinicalTrials.gov Identifier: | NCT00774358 History of Changes |
| Other Study ID Numbers: | 2007-6-5354 |
| Study First Received: | October 16, 2008 |
| Last Updated: | May 21, 2013 |
| Health Authority: | United States: Food and Drug Administration |
Keywords provided by Children's Hospital of Philadelphia:
|
Primary Immunodeficiency |
Additional relevant MeSH terms:
|
Thrombocytopenia Wiskott-Aldrich Syndrome Blood Platelet Disorders Hematologic Diseases Blood Coagulation Disorders, Inherited Blood Coagulation Disorders Hemorrhagic Disorders Lymphopenia Leukopenia Leukocyte Disorders Genetic Diseases, Inborn Genetic Diseases, X-Linked |
Immunologic Deficiency Syndromes Immune System Diseases Interleukin-2 Antineoplastic Agents Therapeutic Uses Pharmacologic Actions Analgesics, Non-Narcotic Analgesics Sensory System Agents Peripheral Nervous System Agents Physiological Effects of Drugs Central Nervous System Agents |
ClinicalTrials.gov processed this record on May 21, 2013