A Phase I Study of [18F]Flortaucipir PET Imaging in Chinese Subjects: Safety, Pharmacokinetics, Biodistribution, Radiation Dosimetry, and Preliminary Diagnostic Efficacy
A Non Randomized, Open-Label Phase I Study to Evaluate the Safety and Tolerability, Pharmacokinetics, Biodistribution and Radiation Dosimetry, and Preliminary Diagnostic Efficacy of [18F]Flortaucipir Injection PET Imaging in Chinese Subjects
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Phase 1
Kontakte und Standorte
Studienorte
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Beijing Municipality
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Beijing, Beijing Municipality, China, 100853
- Rekrutierung
- Chinese PLA General Hospital
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Kontakt:
- Dr. Wang Ruimin, Doctor
- Telefonnummer: 86-13501151740
- E-Mail: wrm@yeah.net
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Signed informed consent form (ICF).
- Male or female aged 50-85 years.
- Education level sufficient to cooperate with neuropsychological testing and obtain reliable results.
Meet the following criteria related to cognitive impairment:
- CN: No history of cognitive impairment, Aβ-PET negative, MRI without clinically significant neurodegenerative changes.
- MCI: Meet core criteria for AD-related MCI, Aβ-PET positive, MRI showing neurodegenerative changes.
- AD: Meet core criteria for probable AD dementia, Aβ-PET positive, MRI showing neurodegenerative changes.
- Fertile individuals: No plan for reproduction, sperm/egg donation within 6 months after signing ICF and until 6 months after study drug administration; and agreement to use highly effective contraception (including partner).
Exclusion Criteria:
- Pregnant (positive pregnancy test at screening or before administration) or breastfeeding women.
- Major surgery within 1 month prior to screening, or planned surgery during the study period.
- Known allergy to radioactive radiation, alcohol, [18F]Flortaucipir injection, or its excipients, or other severe allergic reactions.
- Cognitive impairment due to causes other than AD.
- Clinically significant infarction or probable multi-infarct dementia.
- Current clinically significant psychiatric illness (e.g., major depression, schizophrenia).
- History of epilepsy or seizures (except febrile seizures in childhood).
- Inability to tolerate PET/MRI or presence of contraindications to PET/MRI.
- Other neurodegenerative diseases or dementias other than AD dementia.
- Any other condition that, in the investigator's opinion, makes the subject unsuitable for the study.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Diagnose
- Zuteilung: Nicht randomisiert
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
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Experimental: CN (cognitively normal)
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A radioactive diagnostic agent intended for brain positron emission tomography (PET) imaging in adult patients with cognitive impairment who are being evaluated for Alzheimer's disease (AD), to estimate the density and distribution of aggregated tau neurofibrillary tangles (NFTs).
Andere Namen:
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Experimental: MCI (mild cognitive impairment)
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A radioactive diagnostic agent intended for brain positron emission tomography (PET) imaging in adult patients with cognitive impairment who are being evaluated for Alzheimer's disease (AD), to estimate the density and distribution of aggregated tau neurofibrillary tangles (NFTs).
Andere Namen:
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Experimental: AD (Alzheimer's disease)
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A radioactive diagnostic agent intended for brain positron emission tomography (PET) imaging in adult patients with cognitive impairment who are being evaluated for Alzheimer's disease (AD), to estimate the density and distribution of aggregated tau neurofibrillary tangles (NFTs).
Andere Namen:
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
|---|---|
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Incidence and Severity of Treatment-Emergent Adverse Events (TEAEs)
Zeitfenster: 6 days post-injection
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6 days post-injection
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Maximum Observed Plasma Concentration (Cmax) - Total Radioactivity and Parent Compound
Zeitfenster: Up to 360 mins
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Cmax is defined as the highest observed plasma concentration of total radioactivity (measured by gamma counting) and of the unmetabolized parent [18F]Flortaucipir
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Up to 360 mins
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Time to Reach Cmax (Tmax) - Total Radioactivity and Parent Compound
Zeitfenster: Up to 360 mins
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Tmax is the time (in minutes) at which the maximum plasma concentration (Cmax) occurs, recorded as the midpoint of the sampling interval during which the maximum is observed.
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Up to 360 mins
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Terminal Half-Life (t½) of Unmetabolized Parent Compound
Zeitfenster: Up to 360 mins
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Up to 360 mins
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Area Under the Plasma Concentration-Time Curve (AUC0-t and AUC0-∞) of Unmetabolized Parent Compound
Zeitfenster: Up to 360 mins
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AUC0-t is calculated using the linear trapezoidal rule from time 0 to the last measurable concentration.
AUC0-∞ is extrapolated as AUC0-t + Ct/λz, where Ct is the last quantifiable concentration and λz is the terminal elimination rate constant.
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Up to 360 mins
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Percentage of Unmetabolized Parent Compound in Plasma
Zeitfenster: Up to 360 mins
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Up to 360 mins
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Urinary Radioactive Excretion Rate
Zeitfenster: 0-60, 60-120, 120-240, 240-360 mins post-injection
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Rate of radioactivity excreted in urine, expressed as percentage of injected dose per hour (%ID/h).
Measured by gamma counting of collected urine aliquots over specified intervals.
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0-60, 60-120, 120-240, 240-360 mins post-injection
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Cumulative Urinary Excretion of Radioactivity
Zeitfenster: Up to 360 mins post-injection
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Total cumulative percentage of the injected radioactive dose recovered in urine over time.
Calculated as the sum of radioactivity excreted at each collection interval.
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Up to 360 mins post-injection
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Percentage of Unmetabolized Parent Compound and Metabolites in Urine
Zeitfenster: Up to 360 mins post-injection
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Relative proportion of total urinary radioactivity that corresponds to the intact [18F]Flortaucipir and its known radioactive metabolites.
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Up to 360 mins post-injection
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Organ/Tissue Radioactivity Uptake - Percent Injected Dose (%ID)
Zeitfenster: Up to 240 mins post-injection
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Percentage of the injected radioactive dose (%ID) present in each target organ or tissue (e.g., brain, liver, kidneys, lungs, bone marrow, etc.) at specified imaging time points.
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Up to 240 mins post-injection
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Mean Standardized Uptake Value (SUVmean) in Target Organs/Tissues
Zeitfenster: Up to 240 mins post-injection
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SUVmean is defined as the mean tissue radioactivity concentration (decay-corrected) normalized by injected dose per body weight.
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Up to 240 mins post-injection
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Residence Time (Source Organ Time-Integrated Activity)
Zeitfenster: Up to 240 mins post-injection
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Residence time (also known as time-integrated activity coefficient) for each source organ, expressed as hours (or minutes).
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Up to 240 mins post-injection
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Absorbed Dose to Target Organs/Tissues
Zeitfenster: Up to 240 mins post-injection
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Absorbed dose (mGy) to each target organ/tissue (e.g., brain, liver, kidneys, urinary bladder wall, lungs, red marrow, heart wall, spleen, thyroid, etc.) per unit administered activity (mGy/MBq).
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Up to 240 mins post-injection
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Effective Dose (Whole-Body)
Zeitfenster: Up to 240 mins post-injection
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Up to 240 mins post-injection
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Visual Read Positivity Rate - Overall and by Subject Subgroup
Zeitfenster: At 80 mins post-injection
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Proportion of subjects with a positive PET scan based on visual assessment (blinded, independent readers) using a predefined read criterion
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At 80 mins post-injection
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Standardized Uptake Value Ratio (SUVR) - Composite Region
Zeitfenster: At 80 mins post-injection
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SUVR is calculated as the mean standardized uptake value (SUV) in a composite target region of interest
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At 80 mins post-injection
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- ELI-101-001
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
Produkt, das in den USA hergestellt und aus den USA exportiert wird
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