Hematopoietic Stem Cell Transplantation Clinical Trial
Official title:
A Phase II Study of Allogeneic Hematopoietic Stem Cell Transplant for Subjects With VEXAS (Vacuoles, E1 Enzyme, X-linked, Autoinflammatory, Somatic) Syndrome
Background: Allogeneic hematopoietic stem cell transplant involves taking blood stem cells from a donor and giving them to a recipient. The transplants are used to treat certain diseases and cancers. Researchers want to see if the transplant can treat VEXAS Syndrome. Objective: To see if stem cell transplants can be successfully performed in people with VEXAS and even improve the disease. Eligibility: People ages 18-75 who have VEXAS Syndrome that has caused significant health problems and standard treatment either has not worked or is not available. Design: Participants will be screened with: Physical exam Medical review Blood and urine tests Heart and lung function tests Bone marrow biopsy Participants will have a chest x-ray. They will have an imaging scan of the head, chest, abdomen, pelvis, and sinus. They will have a bone density scan. They will have a dental exam and eye exam. They will meet with specialists. They will repeat some screening tests. Participants will be admitted to the NIH hospital. They have a central venous catheter put into a vein in the chest or neck. They will receive drugs to prepare their bone marrow for the transplant. They may have total body irradiation. They will receive the donor stem cells through the catheter. They will get other drugs to prevent complications and infections. After discharge, they must stay in the DC area for 3 months for weekly study visits. Participants will have study visits 30, 60, 100, 180, 210, 240, 300, and 360 days later. After that, they will have yearly visits for 2 years and then be contacted yearly by phone....
Status | Recruiting |
Enrollment | 37 |
Est. completion date | July 1, 2026 |
Est. primary completion date | July 1, 2026 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years to 75 Years |
Eligibility | - INCLUSION CRITERIA: Non-disease related - Age >= 18-year-old and <= 75-year-old - Availability of an 8/8 or 7/8 HLA-matched related or unrelated donor, or a haploidentical related donor - Karnofsky performance status of >= 40% - Adequate end-organ function, defined as follow: 1. Left ventricular ejection fraction > 35%, preferably by 2-D echocardiogram (ECHO) obtained within 60 days prior to treatment initiation. 2. Creatinine <= 2.0 mg/dl and creatinine clearance >= 30 ml/min; 3. Serum conjugated bilirubin < 3.0 mg/dl; serum ALT and AST <= 5 times upper limit of normal. - Pulmonary function tests: FEV1 and DLCO >30% - Ability of subject to understand and the willingness to sign a written informed consent document. - As therapeutic agents used in this trial may be harmful to a fetus, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) at the study entry and for at least one-year post-allo HCT. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in the study, she should inform her treating physician immediately. - Willingness to remain in the NIH hospital or, if discharged, live within 2 hours drive from the NIH, for a minimum of 100 days after transplant or longer, if there are complications. If outpatient in the first 100 days after transplant, participant must commit to having an adult caregiver with them at all times. Disease related - Somatic mutation in UBA1 performed by a CLIA or CAP certified laboratory. NOTE: Participants without a mutation or unknown mutation status may be eligible if they have a clinical history that is characteristic of an individual with VEXAS syndrome including two or more of a-e below. - Inflammatory clinical phenotype for VEXAS syndrome with at least one VEXAS disease manifestation below: 1. constitutional symptoms including fevers, fatigue, and weight loss 2. cutaneous symptoms of VEXAS including biopsy proven neutrophilic dermatosis, cutaneous vasculitis, periorbital inflammation 3. pulmonary symptoms of VEXAS with pulmonary infiltrates, pleural effusion 4. musculoskeletal or cartilaginous involvement including inflammatory arthritis, ear chondritis, and nasal chondritis 5. inflammatory disease in other major organ systems including cardiac, gastrointestinal, ocular, etc. - Presence of cytopenia defined as at least one of the following: i. Absolute neutrophil count <=1000/ microliter ii. platelet count <= 75,000/microliter or platelet transfusion dependence (at least 4 platelet transfusions in the 8 weeks prior to study entry iii. hemoglobin <= 10.0g/dL or red cell transfusion-dependence (at least 4 units of PRBCs in the 8 weeks prior to treatment initiation) or meeting criteria for myeloid neoplasm (MN) by WHO criteria OR -Participants who have failed standard medical management (requiring >= 0.5mg/kg per day of prednisone for the above listed inflammatory condition or intolerance or refractory to use of corticosteroids and/or steroid sparing medications as well as biological response modifiers over the last 6 months), or when no standard medical treatment is available. EXCLUSION CRITERIA: - HCT Comorbidity Index >= 5. Note: Comorbidities that are specifically addressed in the inclusion criteria will not be included in the calculation of HCT-CI score. - Participants with multiple myeloma. Note: participants with low risk smoldering multiple myeloma or monoclonal gammopathy of unknown significance will not be excluded) - Participants who are receiving any other investigational agents within the last 30 days before treatment initiation. - HIV-positive patients are ineligible because these patients are at increased risk of lethal infections when treated with marrow-suppressive therapy. - History of allergic reactions attributed to compounds of similar chemical or biologic composition to agents (steroids, cyclophosphamide, busulfan, sirolimus, MMF, filgrastim or filgrastim biosimilar) used in the study - Pregnant women are excluded from this study because the study agents have the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with the study agents, breastfeeding should be discontinued if the mother is treated with the study agents. - Uncontrolled intercurrent illness or social situations (as determined by a licensed master social worker) that would limit compliance with study requirements. - Presence of active uncontrolled infections that in the opinion of the PI would make it unsafe to proceed with transplantation - Active psychiatric disorder which is deemed by the PI to have significant risk of compromising compliance with the transplant protocol |
Country | Name | City | State |
---|---|---|---|
United States | National Institutes of Health Clinical Center | Bethesda | Maryland |
Lead Sponsor | Collaborator |
---|---|
National Cancer Institute (NCI) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Reversal of clinical phenotype of VEXAS | fraction of subjects who achieve complete clinical response without use of additional glucocorticoid therapy and without steroid-sparing therapy | +1 and +2 years post HSCT | |
Primary | Sustained donor engraftment | defined as neutrophil recovery with ANC = 500/mm^3 for 3 consecutive days associated with > 50% T-cell and myeloid cell donor chimerism at day 100 and one year post-HSCT | day +100 and +1 year post HSCT | |
Secondary | Safety of allo HSCT | Transplant-related toxicity will include if allogeneic HSCT in participants with VEXAS results in the absence of secondary graft failure. The fraction of participants who have secondary graft failure will be reported along with a 95% two-sided confidence interval, separately by cohort. | +1, +2 and +3 years post HSCT | |
Secondary | incidence of grade III-IV acute GVHD and moderate to severe chronic GVHD | group comparison of participants with an 8/8 HLA matched related or unrelated donor compared to group of participants with 7/8 HLA matched related or unrelated donor or haploidentical donor. Reported with 95% two-sided confidence intervals. The fractions will also be reported separately by cohort using simple estimates along with 95% two-sided confidence intervals. In addition cumulative incidence curves along with a 95% two-sided confidence interval. | +1 and +2 years post HSCT | |
Secondary | Overall survival and event free survival | Overall and event free survival will be determined using Using the Kaplan-Meier method, along with the median value and the 95% confidence interval at the median, separately by cohort. | +1, +2 and +3 years post HSCT |
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