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CompletedNCT03636204Updated Jul 27, 2020

A First in Human Study in Healthy Volunteers and in Participants With Frontotemporal Dementia With Granulin (GRN) Mutation

A Phase 1 interventional study of AL001 and Placebo in Healthy and Frontotemporal Dementia, sponsored by Alector Inc.. Completed at 8 sites in 3 countries. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-07-27.

Sponsored by Alector Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Dec 2019, 6 years 9 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
64
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

A first in human phase 1 study in healthy volunteers and participants with Granulin (GRN) mutation causative of frontotemporal dementia (FTD) to assess AL001 safety, tolerability, pharmacokinetics, and pharmacodynamics

Read the detailed description

This is a first-in-human Phase 1 study designed to investigate the safety, tolerability, PK and PD of intravenously administered AL001 in Healthy Volunteers and FTD-GRN mutation carriers.

02

Conditions studied

03

In context

Dementia

2,172 studies on the registry are indexed under Dementia; 540 are open to participants now.

This study's enrollment of 64 is below the median of 83 across 1,629 interventional studies indexed under Dementia.

Browse Dementia studies →

Lead sponsor

Alector Inc. is the lead sponsor of 10 studies on the registry; none are open to participants now.

Of its 10 completed or terminated interventional studies of FDA-regulated products, 5 (50%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • BMI 18.0-35.0 kg/m2
  • 45-120 kg, inclusive
  • At screening, females must be non-pregnant and non-lactating, or of nonchildbearing potential (either surgically sterilized or physiologically incapable of becoming pregnant, or at least 1-year postmenopausal (amenorrhoea duration of 12 consecutive months); nonpregnancy will be confirmed for all females by a pregnancy test conducted at screening, (each) admission, and at follow-up.
  • Female participants of child-bearing potential must agree to use adequate contraception from screening until 90 days after the follow-up visit.
  • In good physical health on the basis of no clinically significant findings from medical history, physical examination (PE), laboratory tests, 12 lead ECG, and vital signs, as judged by the Investigator.
  • Willingness and able to comply with the study protocol, in the investigator's judgement.

Exclusion criteria

Exclusion Criteria:

  • Known history of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric, human, or humanized antibodies or fusion proteins.
  • Positive drug or alcohol at screening and prior to first dose
  • History of alcohol abuse or substance abuse
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
64 participants (actual)

Study arms

  • Experimental
    AL001

    Up to six single ascending doses of AL001

    Biological: AL001

  • Placebo comparator
    Saline Solution

    Saline solution will be administered as a single infusion for each cohort in a ratio of 6 active and 2 placebo subjects

    Other: Placebo

Interventions

  • BiologicalAL001

    Active dose of AL001

  • OtherPlacebo

    Saline solution administered as a single infusion as palcebo.

06

What researchers measure

Primary outcomes

  1. Evaluation of safety and tolerability of AL001 measured by number of subjects with adverse events and Dose Limiting Adverse Event (DLAEs)

    Incidence of adverse events and dose limiting Adverse Events during the DLAE observation period and/or study treatment periods.

    Time frame: 85 days

Secondary outcomes

  1. Pharmacokinetics (PK) of AL001

    Serum and cerebrospinal fluid (CSF) concentration of AL001 at specified time points

    Time frame: 85 days

  2. Maximum plasma concentration (Cmax) for AL001

    Evaluate Cmax for serum and CSF concentration of AL001 at specified time points

    Time frame: 85 days

  3. Area under the curve concentration (AUC) for AL001

    Evaluate AUC for serum and CSF concentration of AL001 at specified time points

    Time frame: 85 days

07

Study locations

8 sites
  • University of Alabama
    Birmingham, Alabama 35294, United States
  • UCSF
    San Francisco, California 94158, United States
  • Study site
    Orlando, Florida 32806, United States
  • Mayo Clinic
    Rochester, Minnesota 55905, United States
  • University of Pennsylvania
    Philadelphia, Pennsylvania 19104, United States
  • Lawson Health Research Institute, St. Joseph's
    London, Ontario, Canada
  • Sunnybrook Health Sciences Centre
    Toronto, Canada
  • University College London
    London, WC1N 3BG, United Kingdom
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 27, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03636204
Lead sponsor
Alector Inc.
Responsible party
Sponsor
First posted
Aug 17, 2018
Start date
Sep 14, 2018
Primary completion
Dec 31, 2019
Completion
Dec 31, 2019
Last update
Jul 27, 2020

Study contacts

George Stoica
principal investigator · Bioclinica Research

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2020. You cannot join it, but the record below documents what was studied.

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