A Phase 1 First in Human Study to Assess Safety and Tolerability of AL101

NCT ID: NCT04111666

Last Updated: 2022-08-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

88 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-12-14

Study Completion Date

2022-06-09

Brief Summary

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A first in human phase 1 study in healthy volunteers to assess AL101 safety, tolerability, bioavailability, pharmacokinetics, and pharmacodynamics

Detailed Description

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This is a first-in-human Phase 1 study designed to investigate the safety, tolerability, PK, PD and Bioavailability of intravenously and sub-cutaneously administered AL101 in Healthy Volunteers.

Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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AL101 IV

* Up to four single ascending doses (SAD IV cohorts)
* Multiple doses of AL101 administered IV (MD IV cohort)

Group Type EXPERIMENTAL

AL101

Intervention Type BIOLOGICAL

Active dose of AL101

Saline Solution

Saline solution will be administered with the following:

* Single IV infusion for four single ascending doses (SAD IV cohorts) in a ratio of 8 active and 3 placebo subjects
* Multiple IV infusions for the MD IV cohort in a ratio of 8 active and 2 placebo subjects

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

Saline solution administered as a single and multiple infusion as placebo.

AL101 SC

* Single fixed dose levels of AL101 administered SC
* Multiple fixed dose of AL101 administered SC

Group Type EXPERIMENTAL

AL101

Intervention Type BIOLOGICAL

Active dose of AL101

Interventions

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AL101

Active dose of AL101

Intervention Type BIOLOGICAL

Placebo

Saline solution administered as a single and multiple infusion as placebo.

Intervention Type OTHER

Eligibility Criteria

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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

* 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
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Alector Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jorge Kusnir

Role: PRINCIPAL_INVESTIGATOR

Bioclinica Research

Maria Bermudez

Role: PRINCIPAL_INVESTIGATOR

Quotient Sciences

Locations

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Study site

Miami, Florida, United States

Site Status

Study site

Orlando, Florida, United States

Site Status

Countries

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United States

References

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Budda B, Mitra A, Park L, Long H, Kurnellas M, Bien-Ly N, Estacio W, Burgess B, Chao G, Schwabe T, Paul R, Kenkare-Mitra S, Rosenthal A. Development of AL101 (GSK4527226), a progranulin-elevating monoclonal antibody, as a potential treatment for Alzheimer's disease. Alzheimers Res Ther. 2025 Jul 25;17(1):174. doi: 10.1186/s13195-025-01817-4.

Reference Type DERIVED
PMID: 40713730 (View on PubMed)

Other Identifiers

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AL101-1

Identifier Type: -

Identifier Source: org_study_id

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