- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT04644653
Ex Vivo Test of New Stroke Treatment Using Magnetic Nanorobots
Steered t-PA Delivery for Thrombolysis Test Using Magnetic Swarming Nanorobots on Human Placenta as an ex Vivo Model of Human Cerebral Vascular System
Tissue plasminogen activator (tPA) is the FDA approved thrombolytic drug for patients with acute ischemic stroke. While transcatheter endovascular therapy is widely accepted as an effective method for targeted blood vessels via a catheter to elicit ischemic necrosis.
To improve targeting accuracy administrated tPA and avoiding collateral tissue damage, we developed a magnetic nanorobotic system to active system to active intravenous delivery of tPA for targeted thrombus removal. Here human placenta will be used as an ex vivo model for human cerebral vascular system in our ex vivo thrombolysis study. Our magnetic nanorobotic system encapsulated with tPA overcomes the limitations of passive thrombolytic therapy with tPA alone and will be a promising approach for the treatment of ischemic stroke and other thrombotic diseases
Studieöversikt
Status
Betingelser
Studietyp
Inskrivning (Förväntat)
Kontakter och platser
Studieorter
-
-
New Territories
-
Shatin, New Territories, Hong Kong
- Aktiv, inte rekryterande
- Advanced Nanomaterials & Microrobotics Laboratory, Room 202, William M.W Mong Engineering Building, CUHK and Room 508, Li Ka Shing Medical Sciences Building, Prince of Wales Hospital
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Shatin, New Territories, Hong Kong
- Rekrytering
- Department of Obstetrics and Gynaecology, Prince of Wales Hospital
-
Kontakt:
- Pui Wah Chung, Doctor
- Telefonnummer: (852) 35051537
- E-post: jacquelinechung@cuhk.edu.hk
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Huvudutredare:
- Pui Wah Chung, Doctor
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
- Healthy pregnant women at 20-45 years of age of any ethic origin, giving childbirth with natural delivery or caesarean sections after 37-42 weeks of gestation.
- Healthy singleton pregnancy.
- Participant able to give voluntary, written, informed consent to participate in the study.
Beskrivning
Inclusion Criteria:
- Healthy pregnant women at 20-45 years of age of any ethic origin, giving childbirth with natural delivery or caesarean sections after 37-42 weeks of gestation.
- Healthy singleton pregnancy.
- Participant able to give voluntary, written, informed consent to participate in the study.
Exclusion Criteria:
- Abnormal prenatal development (e.g intrauterine growth restriction)
- Early preterm birth < 37 weeks
- Verbal Confirmation of hypercholesterolemia
- Family history of stroke or vascular disease
- Type I or Type II diabetes and gestational diabetes
- Cancer, except skin cancers completely excised with no chemotherapy or radiation with a follow up that is negative.
- Clinically significant abnormal laboratory results at screening.
- Any other active or unstable medical condition.
- History of liver disease.
- History of hypertension (including pre-eclampsia)
Studieplan
Hur är studien utformad?
Designdetaljer
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Thrombolysis performance
Tidsram: 1 -2 hours
|
Size of thrombus by angiography, mm
|
1 -2 hours
|
|
Time for recanalization
Tidsram: 1 -2 hours
|
Time for recanalization of occluded vessels, mins
|
1 -2 hours
|
|
Damage to vessels
Tidsram: 1 -2 hours
|
Histological damage evaluation.
The vessels are sectioned and stained with H&E stain
|
1 -2 hours
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Stability of magnetic nanorobots
Tidsram: 1 - 2 hours
|
Controllability of the magnetic nanorobots.
The loss in mass of nanorobots after magetic navigation in blood vessels is measured.
|
1 - 2 hours
|
|
Dosage requirement
Tidsram: 1 - 2 hours
|
Dosage requirement of nanorobots and thus t-PA, mg
|
1 - 2 hours
|
|
Distribution of administrated nanorobots
Tidsram: 1 - 2 hours
|
The distribution of administrated nanorobots.
The position of nanorobots is tracked by MRI.
|
1 - 2 hours
|
Samarbetspartners och utredare
Sponsor
Studieavstämningsdatum
Studera stora datum
Studiestart (Faktisk)
Primärt slutförande (Förväntat)
Avslutad studie (Förväntat)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Faktisk)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 2020.384
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
Läkemedels- och apparatinformation, studiedokument
Studerar en amerikansk FDA-reglerad läkemedelsprodukt
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