Clinical trial • Phase IV • Neurology
AUTOLOGOUS CD34+ ENRICHED CELL FRACTION THAT CONTAINS CD34+ CELLS TRANSDUCED WITH RETROVIRAL VECTOR THAT ENCODES FOR THE HUMAN ADA CDNA SEQUENCE for Ischemic stroke
Phase IV trial of AUTOLOGOUS CD34+ ENRICHED CELL FRACTION THAT CONTAINS CD34+ CELLS TRANSDUCED WITH RETROVIRAL VECTOR THAT ENCODES FOR THE HUMAN ADA CDNA…
Overview
- Trial Therapeutic Area
- Neurology
- Trial Disease
- Ischemic stroke
- Trial Stage
- Phase IV
- Drug Modality
- Cell therapy
Key dates
- Initial CTIS Submission Date
- 30-01-2025
- First CTIS Authorization Date
- 30-01-2025
Trial design
Randomised, open-label, sham control (sham procedure); comparison of administration timing arms: cd34+ cells administered at 7±2 days versus 20±5 days after ischemic stroke Phase IV trial across 1 site in Portugal.
- Randomised
- Yes
- Open Label
- Yes
- Comparator
- Sham control (sham procedure); comparison of administration timing arms: CD34+ cells administered at 7±2 days versus 20±5 days after ischemic stroke
- Target Sample Size
- 30
- Trial Duration For Participant
- 90
Eligibility
Recruits 30 Vulnerable population is not selected. The protocol states: "In the event of incapacitated subjects, informed consent will be sought from a legally acceptable representative.".
- Pregnancy Exclusion
- Have known pregnancy. Females of childbearing potential will be screened at baseline with urine pregnancy test and positive results will be excluded (the choice of excluding pregnancies is due to the relative contra-indication to MRI in these patients)
- Vulnerable Population
- Vulnerable population is not selected. The protocol states: "In the event of incapacitated subjects, informed consent will be sought from a legally acceptable representative."
Inclusion criteria
- {"criterion_text":"- Age 18-80 years\n- Have suffered an acute hemispheric ischemic stroke attributable to injury within the territory supplied by the Middle Cerebral Artery (MCA)\n- Symptomatic arterial territory is recanalyzed at the time of randomization\n- Onset of an acute ischemic stroke that can have full clinical, imagiological and bone marrow collection within 7 days after the onset of symptoms. Onset is defined as the time that the subject was last seen in a normal state, or bedtime for unwitnessed strokes occurring during sleep\n- Have readily accessible peripheral venous access blood sampling\n- Have the ability to understand the requirements of the study and be willing to provide written informed consent, as evidenced by signature on an informed consent document (which has been submitted and approved by the local Ethical Committee),and agree to perform the required assessments. In the event of incapacitated subjects, informed consent will be sought from a legally acceptable representative\n- NIHSS of at least 6 at the time of study inclusion"}
Exclusion criteria
- {"criterion_text":"- Patients found delirious, comatose, demented or having any mental impairment other than the neurological deficits related to the index stroke that in the investigator’s opinion renders the subject incapable to participate in the study\n- Non compliance of portuguese national law 12/2009 of march 26th (including but not limited to donor laboratorial analysis not compliant with HIV 1 and 2 (anti-HIV-1,2); hepatitis B (HBsAg; anti-HBc); hepatitisC (anti-HCV-Ab); syphilis and Mycoplasm\n- Hematological causes of stroke\n- Arterial dissection as cause of stroke or complication of previous angiography\n- Known defect of clotting or platelet function\n- Presence of high-grade (>70%) internal carotid artery stenosis or occlusion ipsilateral to the current stroke\n- Have inflammatory disease at baseline (chronic systemic inflammatory disease active at the time of inclusion or acute inflammatory disease such as an infection)\n- Have active malignancy, or recent surgery (within the previous 3 months)\n- Have premorbid neurological deficits and functional limitations assessed by a premorbid Modified Rankin Scale (mRS) score >2\n- Have severe co-existing diseases that may interfere with the conduct of the study, irrespective of stroke outcome\n- Have known pregnancy. Females of childbearing potential will be screened at baseline with urine pregnancy test and positive results will be excluded (the choice of excluding pregnancies is due to the relative contra-indication to MRI in these patients)\n- Contra-indication to MRI\n- Allergy to contrast agents"}
Endpoints
Primary endpoints
- {"endpoint_text":"- Infarct volume at three months after ischemic stroke\n- Volume de enfarte aos três meses após AVC isquémico","definition_or_measurement_approach":"Measured as infarct volume at three months by imaging (imaging outcome; MRI contraindication is listed among exclusions)"}
Secondary endpoints
- {"endpoint_text":"- Functional outcome: modified Rankin Scale (mRS), Stroke Impact Scale (SIS)","definition_or_measurement_approach":"Measured using modified Rankin Scale (mRS) and Stroke Impact Scale (SIS)"}
- {"endpoint_text":"- Cognitive performance: Montreal Cognitive Assessment scale (MoCA)","definition_or_measurement_approach":"Measured using Montreal Cognitive Assessment (MoCA)"}
- {"endpoint_text":"- Functional Independence and performance : Barthel Scale; Upper limb Capacity - Stroke Upper Limb Capacity Scale – SULCS;\tEvaluation of gait speed (TEST 10 METERS); Evaluation of temporospacial gait (GAIT RIte speed)","definition_or_measurement_approach":"Measured using Barthel Scale, SULCS for upper limb capacity, 10-meter walk test for gait speed and GAITRite system for temporospatial gait metrics"}
- {"endpoint_text":"- Depression -\tHospital Anxiety and Depression Scale- (HADS Scale)","definition_or_measurement_approach":"Measured using Hospital Anxiety and Depression Scale (HADS)"}
- {"endpoint_text":"- Qualitiy of life assessment - EuroQol Scale( EQ-5D)","definition_or_measurement_approach":"Measured using EuroQol EQ-5D"}
- {"endpoint_text":"- Deglutition: Teste Rápido de Identificação da Disfagia (TRIDIS); Functional Oral Intake de Identificação da Disfagia (FOIS)","definition_or_measurement_approach":"Measured using TRIDIS and FOIS swallowing/deglutition assessments"}
- {"endpoint_text":"- Aphasia: Bateria de Avaliação de Afasia de Lisboa - BAAL; The Aphasia Rapid Test (ART)","definition_or_measurement_approach":"Measured using BAAL and Aphasia Rapid Test (ART)"}
Recruitment
- Planned Sample Size
- 30
- Recruitment Window Months
- 12
- Consent Approach
- Written informed consent is required from the participant, documented by signature on an informed consent form submitted to and approved by the local Ethical Committee. If a subject is incapacitated, informed consent will be sought from a legally acceptable representative. A subject information and informed consent form document is listed (Portuguese language document present).
Geography
- Total Number Of Sites
- 1
- Total Number Of Participants
- 30
Portugal
- Earliest CTIS Part Ii Submission Date
- 27-01-2025
- Latest Decision Or Authorization Date
- 30-01-2025
- Processing Time Days
- 3
- Number Of Sites
- 1
- Number Of Participants
- 30
Sites
- Site Name
- Unidade Local De Saude De Coimbra E.P.E.
- Department Name
- Centro Hospitalar e Universitário de Coimbra, EPE
- Principal Investigator Name
- João Sargento Freitas
- Principal Investigator Email
- jsargentof@hotmail.com
- Contact Person Name
- João Sargento Freitas
- Contact Person Email
- jsargentof@hotmail.com
- Number Of Participants
- 30
Sponsor
Primary sponsor
- Full Name
- Unidade Local De Saude De Coimbra E.P.E.
- Organisation Type
- Hospital/Clinic/Other health care facility
- Country Of Registered Address
- Portugal
Investigational products
- Investigational Product Name
- Strimvelis 1-10 x 106 cells/mL dispersion for infusion
- Active Substance
- AUTOLOGOUS CD34+ ENRICHED CELL FRACTION THAT CONTAINS CD34+ CELLS TRANSDUCED WITH RETROVIRAL VECTOR THAT ENCODES FOR THE HUMAN ADA CDNA SEQUENCE
- Modality
- Cell therapy
- Routes Of Administration
- Intravenous infusion
- Route
- Intravenous infusion
- Authorisation Status
- Marketing authorisation EU/1/16/1097/001
- Maximum Dose
- 1000000 U unit(s)
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