Reconstitution of a Human Immune System in a Patient Derived Xenograft (PDX) Model of Genitourina… (NCT03134027) | Clinical Trial Compass
TerminatedNot Applicable
Reconstitution of a Human Immune System in a Patient Derived Xenograft (PDX) Model of Genitourinary (GU) Cancers
Stopped: Poor accrual
United States3 participantsStarted 2017-10-19
Plain-language summary
The objective of this study is to obtain human blood CD34+ hematopoietic stem/progenitor cells (HSPCs) to reconstitute a match human immune system in our PDX model. The hypothesis is that by using matched leukocytes and PDX from the same patient, rejection of the PDX by the host immune system will not be observed and therefore a preclinical model to study immunotherapy can be developed to study, understand and improve upon our current therapies. HSPCs will be collected from bone marrow aspirate obtained from a bone marrow biopsy.
The secondary objective is to use patient tumor biopsy samples or circulating tumor cell samples to develop additional preclinical models of GU cancers, particularly prostate cancer, that are clinically relevant by generating additional PDXs.
Who can participate
Age range18 Years
SexALL
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Inclusion criteria
✓. Patients with Genitourinary (GU) Cancers and presence of existing patient derived xenograft or planned collection of tumor for PDX generation
✓. Age ≥ 18 years.
✓. Ability to understand and provide signed informed consent that fulfills Institutional Review Board guidelines.
✓. Ability to undergo bone marrow biopsy
✓. Laboratory requirements (Hematocrit 30%, Platelets 75,000 + 10\^6/l and WBC 4000 X 10\^6/l)
✓. Karnofsky performance status \>70%
Exclusion criteria
✕. Patients with prostate cancer
✕. Age ≥ 18 years.
✕. Ability to understand and provide signed informed consent that fulfills Institutional Review Board guidelines.
✕. Planned or willing to undergo a tumor biopsy. Biopsies may be for research or clinical purposes depending on the treating provider for men with prostate cancer. Biopsies in this study for diseases other than prostate cancer are not permitted
What they're measuring
1
Reconstitution of a matched human immune system in patient derived xenografts (PDXs)
✕. For research only biopsies: At least one lymph node or bone metastatic amenable to a minimum risk biopsy in the opinion of the treating physician.
✕. For clinical purpose biopsies: There are no location or risk requirements.
✕. Laboratory requirements (Hematocrit 30%, Platelets 75,000 X 10\^6/l and WBC 4000 X 10\^6/l)