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A Study to Assess the Safety and Effects of ABBV-1758 Following Subcutaneous or Intravenous Injections in Participants With Alzheimer's Disease

16. září 2026 aktualizováno: AbbVie

A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Safety, Efficacy, Pharmacokinetics, and Pharmacodynamics of ABBV-1758 in Participants With Alzheimer's Disease

Alzheimer's disease (AD) is a progressive, irreversible neurological disorder and is the most common cause of dementia in the elderly population. Clinical symptoms of the disease may begin with occasional forgetfulness such as misplacement of items, forgetting important dates or events, and may progress to noticeable memory loss, increased confusion and agitation, and eventually, loss of independence and non-responsiveness. The purpose of this study is to test how safe ABBV-1758 is, how well it works, how the body processes it and what effects it has on the body.

ABBV-1758 is an investigational drug being developed for the treatment of Alzheimer's disease. This study is conducted in 3 stages. Stage A is a multiple ascending dose study with a 1 in 5 chance (4:1 randomization) that participants are assigned to receive placebo. Stage B is a dose expansion phase, also using 4:1 randomization for ABBV-1758 or placebo. Stage C enrolls Japanese and Chinese participants with the same randomization scheme. Approximately 210 participants will be enrolled at about 55 sites in the United States, China, and Japan.

Participants will receive intravenous (IV) or subcutaneous (SC) doses of ABBV-1758 or placebo once every 4 weeks (Q4W) for 24 weeks and will be followed for additional 12 weeks in the Follow-up Period. Participants will have the option of participating in a 12-month, blinded Extension Period receiving ABBV-1758 or placebo based on amyloid PET results.

There may be higher treatment burden for participants in this trial compared to their standard of care due to study procedures. Participants will attend regular visits during the study at a hospital or clinic. The safety of the treatment will be checked by medical assessments, blood tests, and completing questionnaires.

Přehled studie

Postavení

Nábor

Podmínky

Intervence / Léčba

Typ studie

Intervenční

Zápis (Odhadovaný)

210

Fáze

  • Fáze 2
  • Fáze 1

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní místa

    • California
      • Irvine, California, Spojené státy, 92614
        • Nábor
        • Irvine Center for Clinical Research /ID# 277752
    • Colorado
      • Boulder, Colorado, Spojené státy, 80301
        • Nábor
        • Alpine Clinical Research Center - Boulder - 47th Street /ID# 277856
    • Florida
      • Bradenton, Florida, Spojené státy, 34207
        • Nábor
        • Key Clinical Research LLC /ID# 277800
        • Kontakt:
          • Site Coordinator
          • Telefonní číslo: 941-241-5539
      • Clermont, Florida, Spojené státy, 34711
        • Nábor
        • K2 Medical Research - Clermont /ID# 277859
      • Lady Lake, Florida, Spojené státy, 32159
        • Nábor
        • K2 Medical Research - The Villages /ID# 278290
      • Stuart, Florida, Spojené státy, 34997
        • Nábor
        • Alzheimer'S Research And Treatment Center - Stuart /ID# 278206
      • Wellington, Florida, Spojené státy, 33414
        • Nábor
        • Alzheimer's Research And Treatment Center - Wellington /ID# 277749
        • Kontakt:
          • Site Coordinator
          • Telefonní číslo: (561) 209-2400
      • Winter Park, Florida, Spojené státy, 32789
        • Nábor
        • Conquest Research - Winter Park /ID# 277760
        • Kontakt:
          • Site Coordinator
          • Telefonní číslo: 407-916-0060
    • Massachusetts
      • Watertown, Massachusetts, Spojené státy, 02472
        • Nábor
        • Adams Clinical /ID# 277754
    • Tennessee
      • Cordova, Tennessee, Spojené státy, 38018
        • Nábor
        • Neurology Clinic - Cordova /ID# 277790
    • Texas
      • Dallas, Texas, Spojené státy, 75231
        • Nábor
        • Kerwin Medical Center /ID# 277788
        • Kontakt:
          • Site Coordinator
          • Telefonní číslo: 972-433-9100
    • Beijing Municipality
      • Beijing, Beijing Municipality, Čína, 100053
        • Nábor
        • Xuanwu Hospital Capital Medical University /ID# 283310
    • Guangdong
      • Guangzhou, Guangdong, Čína, 510260
        • Nábor
        • The Second Affiliated Hospital of Guangzhou Medical University /ID# 284295

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý
  • Starší dospělý

Přijímá zdravé dobrovolníky

Ne

Popis

Inclusion Criteria:

  • Participants meeting all the following criteria for Alzheimer's disease (AD):

    • In regions where timely testing is feasible (e.g., results available within 4 weeks of Visit 1), plasma biomarker that is predictive of elevated brain amyloid at Screening for participants that do not have known elevated brain amyloid based on previous amyloid positron emission tomography (PET) results.
    • Participants with amyloid positron emission tomography PET scan results consistent with significant amyloid pathology (as determined by a Centiloid value of 50 or higher).
  • Participants must have a Mini-Mental State Examination (MMSE) score of 20 or higher at Screening.

Exclusion Criteria:

  • Participants with screening magnetic resonance imaging (MRI) that show evidence of another potential etiology for progressive dementia.
  • Participants who have any current serious conditions or illnesses that are not adequately controlled, or any conditions that, in the investigator's opinion, could interfere with the analyses in this study, including but not limited to psychiatric, neurologic (other than AD), cardiovascular, hepatic, renal, gastroenterological, respiratory, endocrinologic, immunologic, or hematologic, metabolic, pulmonary, ophthalmologic, dermatologic, and/or any history of abnormal laboratory results that are indicative of significant disease(s).
  • Participants who had prior exposure to ABBV-1758 or any history of exposure to anti-amyloid beta monoclonal antibody (mAb) treatment.
  • Participants with other significant pathological findings on brain MRI at screening, including but not limited to:

    • Evidence of vasogenic edema
    • 4 or more microhemorrhages (defined as 10 mm or less at the greatest diameter)
    • Any macrohemorrhage (defined as greater than 10 mm at the greatest diameter)
    • Any superficial siderosis
    • Severe white matter disease

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Sekvenční přiřazení
  • Maskování: Trojnásobný

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Stage A-ABBV-1758 Dose A
Participants will receive ABBV-1758 dose A once every 4 weeks (Q4W).
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Experimentální: Stage A-ABBV-1758 Dose B
Participants will receive ABBV-1758 dose B Q4W.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Experimentální: Stage A-ABBV-1758 Dose C
Participants will receive ABBV-1758 dose C Q4W.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Experimentální: Stage A-ABBV-1758 Dose D
Participants will receive ABBV-1758 dose D Q4W.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Experimentální: Stage B- ABBV-1758 - Expanded Cohort 1
Participants will receive ABBV-1758 dose determined in Stage A Q4W.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Experimentální: Stage B- ABBV-1758- Expanded Cohort 2
Participants will receive ABBV-1758 dose determined in Stage A Q4W.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Experimentální: Stage C- ABBV-1758 - Japanese Cohort 1
Participants will receive ABBV-1758 dose determined in Stage A Q4W.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Experimentální: Stage C- ABBV-1758- Japanese Cohort 2
Participants will receive ABBV-1758 dose determined in Stage A Q4W.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Experimentální: Stage C- ABBV-1758-Chinese Cohort
Participants will receive ABBV-1758 dose determined in Stage A Q4W.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758 Dose A
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758 Dose B
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758 Dose C
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758 Dose D
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758 - Expanded Cohort 1
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758- Expanded Cohort 2
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758 - Japanese Cohort 1
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758- Japanese Cohort 2
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)
Komparátor placeba: Placebo for ABBV-1758- Chinese Cohort
Participants will receive Placebo for ABBV-1758.
Intravenous (IV) or Subcutaneous (SC)
Subcutaneous (SC)

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Percentage of Participants Experiencing Adverse Events (AEs)
Časové okno: Up to approximately 40 weeks
An adverse event (AE) is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with the treatment. The investigator assesses the relationship of each event to the use of study drug.
Up to approximately 40 weeks
Percentage of Participants with Abnormal Change from Baseline in Clinical Laboratory Test Results
Časové okno: Up to approximately 40 weeks
Number of participants with abnormal change in clinical laboratory test results like hematology will be assessed.
Up to approximately 40 weeks
Percentage of Participants With Amyloid-Related Imaging Abnormalities (ARIA)
Časové okno: Up to approximately 40 weeks
Amyloid related imaging abnormalities represent a spectrum of magnetic resonance imaging findings primarily observed in participants undergoing treatment with anti-amyloid therapies.
Up to approximately 40 weeks
Percentage of Participants with Abnormal Change From Baseline in Vital Sign Measurements
Časové okno: Up to approximately 40 weeks
Number of participants with abnormal change from baseline in vital sign measurements like systolic and diastolic blood pressure will be assessed.
Up to approximately 40 weeks
Percentage of Participants with Abnormal Change From Baseline in Electrocardiograms (ECGs) Parameters
Časové okno: Up to approximately 40 weeks
12-lead resting ECGs will be recorded. Parameters include heart rate, PR interval, QT interval, QRS duration, and QT interval corrected using Fridericia's formula (QTcF).
Up to approximately 40 weeks
Percentage of Participants Experiencing Any Suicidal Ideation or Suicidal Behavior As Assessed by Columbia-Suicide Severity Rating Scale (C-SSRS)
Časové okno: Up to approximately 40 weeks
The C-SSRS is a clinician-rated instrument that reports the severity of both suicidal ideation and behavior, with a higher score denoting more severe suicidal ideation and behavior.
Up to approximately 40 weeks
Stage A, B, and C: Change from Baseline in Brain Amyloid Load
Časové okno: Up to approximately 28 Weeks
Measured by amyloid positron emission tomography (PET)
Up to approximately 28 Weeks
Stage A and C: Maximum Plasma Concentration (Cmax) of ABBV-1758
Časové okno: Up to approximately 40 weeks
Cmax of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Time to Cmax (Tmax) of ABBV-1758
Časové okno: Up to approximately 40 weeks
Tmax of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Trough Concentration measured at the end of a dosing interval at steady state (Ctrough) of ABBV-1758
Časové okno: Up to approximately 40 weeks
Ctrough of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Area under the Plasma Concentration-time Curve from Time Zero to the End of the Dosing Interval (AUCtau) of ABBV-1758
Časové okno: Up to approximately 40 weeks
AUCtau of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Average Serum Concentration at Steady-State (Cav,ss) of ABBV-1758
Časové okno: Up to approximately 40 weeks
Cav,ss of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Accumulation ratio for (AUCtau) of ABBV-1758
Časové okno: Up to approximately 40 weeks
AUCtau of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Total Body Clearance (CL) of ABBV-1758
Časové okno: Up to approximately 40 weeks
CL of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Apparent Clearance (CL/F) of ABBV-1758
Časové okno: Up to approximately 40 weeks
CL/F of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Volume of Distribution at Steady-State (Vss)
Časové okno: Up to approximately 40 weeks
Vss of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Apparent Volume of Distribution during the Terminal Phase (Vz)
Časové okno: Up to approximately 40 weeks
Vz of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Terminal Phase Elimination Rate Constant (β) of ABBV-1758
Časové okno: Up to approximately 40 weeks
β of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Terminal Phase Elimination Half-Life (t1/2) of ABBV-1758
Časové okno: Up to approximately 40 weeks
Terminal phase elimination half-life of ABBV-1758
Up to approximately 40 weeks
Stage A and C: Effective Half-Life (T1/2,eff)
Časové okno: Up to approximately 40 weeks
T1/2,eff of ABBV-1758
Up to approximately 40 weeks

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Vyšetřovatelé

  • Ředitel studie: ABBVIE INC., AbbVie

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

15. května 2026

Primární dokončení (Odhadovaný)

1. října 2030

Dokončení studie (Odhadovaný)

1. října 2030

Termíny zápisu do studia

První předloženo

15. května 2026

První předloženo, které splnilo kritéria kontroly kvality

15. května 2026

První zveřejněno (Aktuální)

20. května 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

18. září 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

16. září 2026

Naposledy ověřeno

1. září 2026

Více informací

Termíny související s touto studií

Klíčová slova

Další identifikační čísla studie

  • M25-804

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

AbbVie is committed to responsible clinical trial data sharing. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information.

Časový rámec sdílení IPD

For details on when studies are available for sharing, visit https://vivli.org/ourmember/abbvie/

Kritéria přístupu pro sdílení IPD

To learn more about the process, or to submit a request, visit the following link https://www.abbvieclinicaltrials.com/hcp/data-sharing/

Typ podpůrných informací pro sdílení IPD

  • PROTOKOL STUDY
  • MÍZA

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ano

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

produkt vyrobený a vyvážený z USA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .