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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00697671
Other study ID # NKHEM
Secondary ID
Status Completed
Phase Phase 1
First received April 14, 2008
Last updated July 15, 2013
Start date March 2007
Est. completion date May 2013

Study information

Verified date July 2013
Source St. Jude Children's Research Hospital
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

The prognosis of pediatric patients with hematologic malignancies whose disease is primarily refractory or those who experience a chemotherapy resistant bone marrow relapse is extremely poor. When new agents or chemotherapeutic regimens are unable to induce remission in this patient population, hematopoietic stem cell transplant (HSCT) is also a poor alternative. Thus, in this very high risk group, additional attempts at remission induction with various combinations of chemotherapy alone will unlikely improve outcome and will contribute to overall toxicity. Alternative therapies are needed in these patients with chemotherapy resistant disease.

Immunotherapy with natural killer (NK) cell infusion has the potential to decrease toxicity and induce hematologic remission. NK cells can kill target cells, including leukemia cells, without prior exposure to those cells. In patients undergoing allogeneic HSCT, several studies have demonstrated the powerful effect of NK cells against leukemia. Furthermore, NK cell infusions in patients with primary refractory or multiple-relapsed leukemia have been shown to be well tolerated and void of graft-versus-host disease effects. In this high risk group, complete leukemic remission has been observed in several of these patients after NK cell infusion.

With the current technology available at St. Jude, we have developed a procedure to purify NK cells from adult donors. This protocol will assess the safety of chemotherapy and IL-2 administration to facilitate transient NK-cell engraftment in research participants who have chemotherapy refractory hematologic malignancies including acute lymphoblastic leukemia, chronic myelogenous leukemia, juvenile myelomonocytic leukemia, myelodysplastic syndrome, or non-Hodgkin's lymphoma. In this same cohort, we will also intend to explore the efficacy of NK cells infused in those participants who have chemotherapy refractory disease.


Description:

This study will evaluate the persistence, phenotype and function of donor NK cells as well as exploring the efficacy of the infusion in research participants with chemotherapy refractory hematologic malignancies.


Recruitment information / eligibility

Status Completed
Enrollment 48
Est. completion date May 2013
Est. primary completion date February 2013
Accepts healthy volunteers No
Gender Both
Age group N/A to 18 Years
Eligibility Inclusion Criteria:

- At least two weeks since receipt of last biological therapy, chemotherapy, or radiation therapy.

- Has a suitable adult family member donor available for NK cell donation.

- No current pleural or pericardial effusion.

- HIV negative

- Adequate clinical standing as evidenced by being within multiple renal, hepatic, pulmonary, and neurological required testing parameters.

Exclusion Criteria:

- Pregnant or lactating

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Other:
NK Cell Infusion
All participants will receive a 4 day regimen of chemotherapy (clofarabine, cyclophosphamide, and etoposide) followed by an infusion of HLA partially matched family member donor NK cells processed through the use of the investigational CliniMACS device. Interleukin-2 (IL-2) will be given three times per week post-infusion for a minimum of 2 weeks. IL-2 administration will continue until donor NK cells are no longer detectable in the recipient, and, at that time, will be discontinued
Biological:
Immunotherapy
All participants will receive a 4 day regimen of chemotherapy (clofarabine, cyclophosphamide, and etoposide) followed by an infusion of HLA partially matched family member donor NK cells processed through the use of the investigational CliniMACS device. Interleukin-2 (IL-2) will be given three times per week post-infusion for a minimum of 2 weeks. IL-2 administration will continue until donor NK cells are no longer detectable in the recipient, and, at that time, will be discontinued.
Device:
Miltenyi Biotec CliniMACS device
All participants will receive a 4 day regimen of chemotherapy (clofarabine, cyclophosphamide, and etoposide) followed by an infusion of HLA partially matched family member donor NK cells processed through the use of the investigational CliniMACS device. Interleukin-2 (IL-2) will be given three times per week post-infusion for a minimum of 2 weeks. IL-2 administration will continue until donor NK cells are no longer detectable in the recipient, and, at that time, will be discontinued.
Drug:
Interleukin-2 (IL-2)
All participants will receive a 4 day regimen of chemotherapy (clofarabine, cyclophosphamide, and etoposide) followed by an infusion of HLA partially matched family member donor NK cells processed through the use of the investigational CliniMACS device. Interleukin-2 (IL-2) will be given three times per week post-infusion for a minimum of 2 weeks. IL-2 administration will continue until donor NK cells are no longer detectable in the recipient, and, at that time, will be discontinued.
Clofarabine
All participants will receive a 4 day regimen of chemotherapy (clofarabine, cyclophosphamide, and etoposide) followed by an infusion of HLA partially matched family member donor NK cells processed through the use of the investigational CliniMACS device. Interleukin-2 (IL-2) will be given three times per week post-infusion for a minimum of 2 weeks. IL-2 administration will continue until donor NK cells are no longer detectable in the recipient, and, at that time, will be discontinued.
Cyclophosphamide
All participants will receive a 4 day regimen of chemotherapy (clofarabine, cyclophosphamide, and etoposide) followed by an infusion of HLA partially matched family member donor NK cells processed through the use of the investigational CliniMACS device. Interleukin-2 (IL-2) will be given three times per week post-infusion for a minimum of 2 weeks. IL-2 administration will continue until donor NK cells are no longer detectable in the recipient, and, at that time, will be discontinued.
Etoposide
All participants will receive a 4 day regimen of chemotherapy (clofarabine, cyclophosphamide, and etoposide) followed by an infusion of HLA partially matched family member donor NK cells processed through the use of the investigational CliniMACS device. Interleukin-2 (IL-2) will be given three times per week post-infusion for a minimum of 2 weeks. IL-2 administration will continue until donor NK cells are no longer detectable in the recipient, and, at that time, will be discontinued.

Locations

Country Name City State
United States St. Jude Children's Research Hospital Memphis Tennessee

Sponsors (2)

Lead Sponsor Collaborator
St. Jude Children's Research Hospital Assisi Foundation

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary To assess the safety of chemotherapy and IL-2 administration to facilitate transient NK-cell engraftment in research participants with chemotherapy refractory non-acute myelogenous leukemia (non-AML) hematologic malignancies 4 months post infusion Yes
Secondary To study the persistence, phenotype and function of donor natural killer (NK) cells after infusion in research participants with chemotherapy refractory hematologic malignancies. 4 months infusion Yes
Secondary To explore the efficacy of NK cell infusion in research participants with chemotherapy refractory hematologic malignancies 4 months infusion Yes
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