- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02921373
Tracking Peripheral Blood Mononuclear Cells With Fluorine MRI (TRACK)
A Phase I Study Evaluating the Feasibility of Using Fluorine-19 Cell Sense to Image Human Peripheral Blood Mononuclear Cells In Vivo
Study Overview
Status
Intervention / Treatment
Detailed Description
Background: None of the currently available Good Manufacturing Practices (GMP)-grade MRI cell labelling agents are approved for use in Canada. There is one iron oxide nanoparticle GMP grade preparation that is commercially available but it is not suitable for labelling the immune cell populations the investigators are interested in tracking in vivo. The investigators have, instead, chosen to develop the commercially available, GMP-grade 19F-based perfluorocarbon, known as Cell Sense, for the purpose of tracking immune cell-based vaccine therapies in vivo. This agent has been successful used in a phase I clinical trial in United States and is approved for a second trial current recruiting, under the oversight of the FDA.
The cell tracing agent Cell Sense (CS-1000) is an inert, non-metabolizable tracer. As CS-1000 is taken-up and incorporated into the cell traditional pharmacodynamic and pharmacokinetic analyses in animals and humans are not appropriate, as adsorption and biodistribution will vary with cell type, and therefore have not been done. In vitro studies of toxicity towards various cell types did not yield evidence of adverse effects on various cell functions. Cell Sense also was shown to be non-mutagenic using the Ames and Forward thymidine kinase (TK) assays. Some limited skin irritation was observed when >2,500 fold more Cell Sense than expected to be maximally injected into humans was injected intradermally into rats.
Examples of MRI cell tracking labels include superparamagnetic iron oxide nanoparticles and 19F-containing compounds such as perfluorocarbons. The advantage of using cellular MRI to track cells is that a non-radioactive tracer is used that is suitable for longitudinal studies. MRI offers 3D imaging with exquisite soft tissue contrast. The additional advantage of using 19F over iron-based agents is that 19F is a positive, easily quantifiable contrast cell labelling agent. Furthermore, there is no 19F-background MRI signal in humans whereas MRI involving iron can be confounded by different imaging artifacts and it is a negative contrast agent that is difficult to accurately quantify. The investigators are particularly interested in whether immune cells arrive in secondary lymphoid organs such as lymph nodes.
Study Design:
Open label, dose escalating, single centre, phase I study that will accrue (a) 6 healthy adults and (b) 6 prostate cancer patients.
Three healthy adults and three prostate cancer patients will be enrolled into the first cohort. Whole blood (150 ml) will be obtained by venipuncture. After processing of the blood to obtain peripheral blood mononuclear cells (PBMC), half of the PBMC will be treated with Cell Sense for 8-24 hours. Given the robustness of our data using 5 donors during dry runs, the investigators do not propose to compare labeled vs unlabeled cells as release criteria. However, the investigators will be collecting this data for information and research purposes. Three million (3 x 106) Cell Sense labeled autologous PBMC will be administered intradermally to the cohort 1 subjects. The three healthy adults and the 3 prostate cancer subjects will be tested concurrently.
If no grade 2 or higher adverse events are observed with the 1st cohort, concurrent enrolment will proceed to recruit a second set of 3 healthy adult subjects and the second set of 3 prostate cancer patients. The second cohort of subjects will be subjected to the same design but with an escalation of the dose to 2-3 x 107 Cell Sense-labeled autologous PBMC administered intradermally.
Endpoints:
Primary Endpoints:
Determine the feasibility of using Cell Sense to detect and monitor the migration of PBMC in humans
Secondary Endpoints:
- Confirm and further optimize the 19F Cell Sense detection and Hydrogen- 1 (1H) anatomical imaging parameters for imaging using the 19F/1H dual coil.
- Determine if Cell Sense-labeled PBMC migration to the draining lymph node can be detected.
- Determine if the lymph nodes in the area of interest imaged change in size on the injected side compared to the contralateral side.
- Quantify the number of Cell Sense-labeled PBMC detected.
- Evaluate safety parameters (toxicity) as defined by:
- adverse events.
- serious adverse events.
- changes in laboratory determination and vital sign parameters as assessed by medical history, physical examination and clinical laboratory tests.
The following categories will be used to grade any adverse events:
- Grade 1: does not interfere with daily activity,
- Grade 2: interferes with daily activity, no treatment required, except paracetamol,
- Grade 3: prevents daily activity or requires treatment.
- Grade 4: Life-threatening
NIH and FDA (or CTCAE v 4.0) guidelines will be used to determine the severity of adverse events
Study Type
Enrollment (Anticipated)
Phase
- Phase 1
Contacts and Locations
Study Contact
- Name: Gregory A Dekaban, PhD
- Phone Number: 24241 519-931-5777
- Email: dekaban@robarts.ca
Study Contact Backup
- Name: Paula J Foster, PhD
- Phone Number: 24040 519-931-5777
- Email: pfoster@robarts.ca
Study Locations
-
-
Ontario
-
London, Ontario, Canada, N6A 5B7
- Robarts Research Institute
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Men diagnosed with confirmed adenocarcinoma of the prostate
- No history of skin hypersensitivities or allergies.
- Normal liver functions as defined by alanine aminotransferase (ALT) (3-36 U/L) and aspirate aminotransferase (AST) levels (10-34 U/L)
- Normal kidney function by monitoring urea (2.5-8.0 ηmol/L) and creatine (70-120 μmol/L [for males]) concentrations.
- Normal complete blood count with differential
- Body Weight between 40 and 110 kg (relates to being able to fit in scanner)
- Body Mass Index < 30 (relates to being able to fit in scanner)
- Negative for (HIV, HTLV1&2, Hep A, B, C, syphilis) infection as determined by approved serological testing.
Exclusion Criteria:
- Contraindication to venipuncture and donation of 100-160 mL of blood
- Active infection (not limited to HIV, HTLV1&2, Hep A, B, C, syphilis)
- Participants are on active chemotherapy (not including castrate hormone therapy), radiation therapy or immunosuppressive therapy (i.e. steroid use, anti-transplant rejection drugs, depleting antibodies)
- Participants who are unable to have an MRI scan (e.g. history of head or eye injury involving metal fragments, implanted electrical device (such as a cardiac pacemaker), conductive implants or devices such as skin patches, body piercing or tattoos containing metallic inks, severe heart disease (including susceptibility to heart rhythm abnormalities), claustrophobia, etc.)
- Participants with known allergies to phenol red, β-lactams and β-lactam derivative
- Participants with known allergies to streptomycin sulfate and gentamicin sulfate
- Participants with unforeseen conditions that are deemed unsafe or inappropriate for the study (e.g. participants who are claustrophobic and cannot undergo an MRI) as per the discretion of the principal investigator.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Non-Randomized
- Interventional Model: Factorial Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Prostate Cancer Patients
Up to 6 Male prostate cancer patients with metastatic, castration resistant prostate cancer will be enrolled. 19F Cell Sense-labeled PBMC (3 million cells) will be injected intradermally into the upper thigh of each participant above the inguinal lymph node. MRI will be used to image the administration site. |
Peripheral blood mononuclear cells (PBMC) will be isolated from patient whole blood samples and labeled in a GMP facility with GMP grade 19F Cell Sense imaging agent. These cells will be re-administered to the patient prior to imaging.
Participants will undergo Magnetic Resonance Imaging (MRI) at 1 hour and 24 hours following PBMC administration
|
Experimental: Healthy Volunteers
Up to 6 male or female healthy volunteers will be enrolled. 19F Cell Sense-labeled PBMC (3 million cells) will be injected intradermally into the upper thigh of each participant above the inguinal lymph node. MRI will be used to image the administration site. |
Peripheral blood mononuclear cells (PBMC) will be isolated from patient whole blood samples and labeled in a GMP facility with GMP grade 19F Cell Sense imaging agent. These cells will be re-administered to the patient prior to imaging.
Participants will undergo Magnetic Resonance Imaging (MRI) at 1 hour and 24 hours following PBMC administration
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Number of participants with treatment-related adverse effects as assessed by CTCAE v4.0
Time Frame: 12 months
|
12 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of patients with detectable 19F MRI signal at the site of injection
Time Frame: 1hr post injection
|
This process will involve testing if the number of PBMC at the site of injection can be visualized and quantified following injection. Signal produced by labeled cells is linearly related to the number of cells. In vivo quantification has been demonstrated in animal modes, but not in a clinical setting to date. If necessary, specific imaging parameters will be adjusted to optimize for clinical anatomical and 19F cell tracking imaging. |
1hr post injection
|
Number of patients with detectable 19F MRI signal at local lymph nodes
Time Frame: 24 hours post injection
|
PBMC are required to migrate to the lymph node for optimum therapeutic effect.
Here the investigators will determine if 19F-MRI contains the necessary imaging sensitivity to detect migration.
|
24 hours post injection
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Gregory A Dekaban, PhD, Robarts Research Institte - Western Universtiy
- Principal Investigator: Paula J Foster, PhD, Robarts Research Institte - Western Universtiy
- Principal Investigator: Sowmya Vuswanathan, PhD, University Health Network - University of Toronto
- Study Chair: Joseph Chin, MD, London Health Research Institute - Western University
- Study Chair: Michael Rieder, MD PhD, Robarts Research Institte - Western University
- Study Chair: Gary Brahm, MD, London Health Research Institute
- Study Chair: Doreen Matsui, MD, Western University
- Study Chair: George Dresser, MD, Western University
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
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
Keywords
Other Study ID Numbers
- CS-PBMC-2015-001
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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