- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02846883
Safety and Efficacy of Allogeneic MSCs in Promoting T-regulatory Cells in Patients With Small Abdominal Aortic Aneurysms (VIVAAA)
Mesenchymal Stem Cells Induce Regulatory T Cells in Patients With Aortic Aneurysm
This project is to determine the safety and explore the effectiveness of allogeneic (not cells of the participant but those of another human) mesenchymal stromal cells (MSCs) in decreasing inflammation and possible enlargement of the participants' abdominal aortic aneurysm. Participants will be selected as a possible subject because of an abdominal aortic aneurysm discovered on the ultrasound or computed tomographic ("CT") scan requested by the participants' doctor.
The purpose of this study is to collect information that will be used to determine if MSCs can be used to decrease inflammation and possibly slow down enlargement of the participants' aneurysm. The investigators will also be collecting blood samples to study special inflammatory cells that cause aneurysms as well as asking participants to have a "PET" (positron emission tomography) scan that can measure inflammation directly in the participants' aneurysm.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
-
-
Indiana
-
Indianapolis, Indiana, United States, 46202-2884
- Richard L. Roudebush VA Medical Center, Indianapolis, IN
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Be 40 and 85 years of age.
- Have diagnosis of noninflammatory degenerative infrarenal abdominal aortic aneurysms measuring 3-5 cm. in diameter by Computed Tomography (CT) scan.
- Females of childbearing potential must be willing to use one form of birth control for the duration of the study. Female participants must undergo a blood or urine pregnancy test at screening.
Exclusion Criteria:
- Inflammatory AAA defined by a thickened aortic wall and retroperitoneal fibrosis and adhesions of peritoneal organs, and elevated erythrocyte sedimentation rate or in the opinion of investigator.
- Mycotic AAA defined as saccular morphology, a positive blood culture, fever, or in the opinion of the investigator.
- Symptomatic, Saccular, or any AAA associated with thoracic aorta dilatation >5.0 cm.
- Infra-renal AAA associated with Marfan's or Ehlers-Danlos Syndrome or other connective tissue disorders.
- Common or external iliac artery aneurysm > 30 cm. in maximal transverse diameter.
- AAA due to dissection.
- Allergy to iodine contrast.
- History of cancer within the last 5 years, except basal cell skin carcinoma with clean border pathology report.
- eGFR< 30mL/min.
- Any condition requiring immunosuppressant medications (e.g., for treatment of organ transplants, psoriasis, Crohn's disease, alopecia areata, rheumatoid arthritis, scleroderma, lupus).
- Acute coronary syndrome in the last 30 days prior to enrollment.*
- CHF hospitalization within the last 30 days prior to enrollment.*
- HIV or HCV positive.
- Contraindication to Computed Tomography or known allergy to contrast media.
- Any bleeding diathesis defined as an INR 2.0 (off anticoagulation therapy) or history of platelet count less than 70,000 or hemophilia.
- Pregnant or breast feeding women.
- Significant hepatic dysfunction (ALT or AST greater than 2 times normal).
- Life expectancy less than two years.
- Inability to provide written informed consent due to cognitive or language barriers (interpreter permitted).
Presence of any clinical condition that in the opinion of the PI or the sponsor makes the patient not suitable to participate in the trial.
- As defined by the standard definitions of CHF and ACS by the American Heart Association.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: TRIPLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
ACTIVE_COMPARATOR: Intravenous infusion of 1 million allogenic MSC's/Kg
In a randomized fashion, the MSCs, in the appropriate dose, will be shipped to the performance site where the MSCs will be thawed, diluted and administered.
The thawed MSCs with be administered within 4 hours to subjects in a monitored setting with telemetry and pulse oximetry.
Patients will be premedicated with hydrocortisone and diphenhydramine.
All subjects will be monitored throughout the infusion procedure with vital signs and pulse oximetry at 15 minutes prior to infusion and ending 2 hours post procedure.
They will also be evaluated for clinical signs of pulmonary distress.
All patients will be admitted overnight for continued observation.
The patient will be examined the following day and discharged home.
|
Intravenous infusion of 1 million allogeneic MSCs/kg.
Intravenous infusion of 3 million allogeneic MSCs/kg
Intravenous infusion of Plasmalyte A (placebo)
Other Names:
|
ACTIVE_COMPARATOR: Intravenous infusion of 3 million allogeneic MSCs/kg
In a randomized fashion, the MSCs, in the appropriate dose, will be shipped to the performance site where the MSCs will be thawed, diluted and administered.The thawed MSCs with be administered within 4 hours to subjects in a monitored setting with telemetry and pulse oximetry.
Patients will be premedicated with hydrocortisone and diphenhydramine.
All subjects will be monitored throughout the infusion procedure with vital signs and pulse oximetry at 15 minutes prior to infusion and ending 2 hours post procedure.
They will also be evaluated for clinical signs of pulmonary distress.
All patients will be admitted overnight for continued observation.
The patient will be examined the following day and discharged home.
|
Intravenous infusion of 1 million allogeneic MSCs/kg.
Intravenous infusion of 3 million allogeneic MSCs/kg
Intravenous infusion of Plasmalyte A (placebo)
Other Names:
|
PLACEBO_COMPARATOR: Intravenous infusion of Plasmalyte A (placebo)
In a randomized fashion, the Plasmalyte A will be shipped to the performance site where it will be thawed and administered.
The Plasmalyte A will be administered within 4 hours to subjects in a monitored setting with telemetry and pulse oximetry as will be performed on active groups in order to protect the blinding of this study.
Patients will be pre-medicated with hydrocortisone and diphenhydramine.
All subjects will be monitored throughout the infusion procedure with vital signs and pulse oximetry at 15 minutes prior to infusion and ending 2 hours post procedure.
They will also be evaluated for clinical signs of pulmonary distress.
All patients will be admitted overnight for continued observation.
The patient will be examined the following day and discharged home.
|
Intravenous infusion of 1 million allogeneic MSCs/kg.
Intravenous infusion of 3 million allogeneic MSCs/kg
Intravenous infusion of Plasmalyte A (placebo)
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Incidence of treatment related adverse events at 12 months post MSC administration as evidenced by the Investigator
Time Frame: 12 months
|
The safety of systemic administration of allogeneic MSCs will be measured by treatment-related adverse events.
The categories of systems are cardiovascular, respiratory, or infectious.
Two categories of severity will be serious adverse (SAE) and major adverse cardiac events (MACE).
Within each of these categories adverse events will be listed in descending order of frequency for the treatment-group.
In addition for each category, the sum and difference between the two routes of delivery of the proportions will be reported as percent incidence.
Confidence Intervals at the 95% confidence level and P-values for these four groups will be calculated.
Since four previous trials have not reported adverse events with MSC treatment, confidence intervals will be generated by the method of the Wilson Score Interval.
|
12 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in circulating inflammatory cell phenotypes as measured by 18-FDG PET/CT
Time Frame: 12 months
|
This trial will also test the hypothesis that MSCs, in a dose dependent fashion (1 x106 MSC/kg.
vs. 3.0 x 106 MSC/kg.
), promote the frequency and immune suppressor function of Treg cells as measured by 18-fluorodeoxyglucose positron emission tomography/computed tomography compared to baseline.
|
12 months
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in aortic inflammation as measured by 18-FDG PET/CT
Time Frame: 12 months
|
This trial will also test the hypothesis that MSCs, in a dose dependent fashion (1 x106 MSC/kg.
vs. 3.0 x 106 MSC/kg.
)promote the decrease of AAA inflammation as measured by 18-fluorodeoxyglucose positron emission tomography/computed tomography compared to baseline.
|
12 months
|
Collaborators and Investigators
Investigators
- Principal Investigator: Michael P Murphy, MD BS, Richard L. Roudebush VA Medical Center, Indianapolis, IN
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CLNB-06-15F
- 1510579216 (OTHER: IU IRB)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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