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Alzheimers DiseasePhase 1NCT04023994

A Single Ascending Dose Study to Investigate the Safety, Tolerability, Immunogenicity and Pharmacokinetics of Intravenously Administered RO7126209 in Healthy Participants

A Phase 1 study testing RO7126209 in people with Alzheimers Disease, run by Hoffmann-La Roche at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Study BP41192 is a randomized, adaptive, placebo-controlled parallel group study to investigate the safety, tolerability, immunogenicity and pharmacokinetics of single-ascending intravenous (IV) doses of RO7126209 in healthy participants. RO7126209 is being developed for the treatment of Alzheimer's Disease. Read more about this study

Who is it for?
Ages 18 to 40 years, men onlyHealthy volunteers can take part
Conditions the study is for
Alzheimers Disease
What is being tested?
RO7126209
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
36 participants
Where
1 siteUnited States
Study dates
3 Aug 2019to 17 Jul 2020
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy status is defined by the absence of evidence of any active or chronic disease following a detailed medical and surgical history, a complete physical examination including vital signs, 12-lead ECG, ophthalmologic examination, hematology, blood chemistry, coagulation, serology, and urinalysis.
  • Body mass index (BMI) of 18-30 kg/m2 inclusive
  • During the treatment period and until the final follow up visit, agreement to: (1) Remain abstinent or use contraceptive measures such as a condom plus an additional contraceptive method that together result in a failure rate of <1% per year, with a partner who is a woman of childbearing potential. (2) With pregnant female partner, remain abstinent or use contraceptive measures such as a condom to avoid exposing the embryo. (3) Refrain from donating sperm from Day 1 of the study until 90 days after last dose.

Who cannot join

  • Concomitant disease or condition that could interfere with, or treatment of which might interfere with, the conduct of the study, or that would, in the opinion of the Investigator, pose an unacceptable risk to the participant in this study.
  • History of any clinically significant gastrointestinal, renal, hepatic, broncho-pulmonary, neurological, psychiatric, cardio-vascular, endocrinological, ophthalmologic, hematological or allergic disease, metabolic disorder, cancer or cirrhosis.
  • Any suspicion or history of alcohol abuse and/or suspicion of regular consumption of drug of abuse within the last 5 years.
  • Positive result on hepatitis B (HBV), hepatitis C (HCV), or human immunodeficiency virus (HIV) 1 and 2.
  • History or presence of clinically significant ECG abnormalities or cardiovascular disease.
  • Clinically-significant abnormalities in laboratory test results.
Show all 19Show fewer
  • Any major illness within one month before the screening examination or any febrile illness within one week prior to screening and up to first dose administration.
  • Impaired hepatic function as indicated by screening aspartate aminotransferase (AST) or alanine aminotransferase (ALT) >=1.5 x the upper limit of normal (ULN) or abnormal total bilirubin unless due to Gilbert's disease.
  • Any clinically relevant history of hypersensitivity or allergic reactions, either spontaneous or following drug administration, or exposure to foods or environmental agents.
  • History of hypersensitivity to biologic agents or any of the excipients in the formulation.
  • History of raised intra-cerebral pressure or vertebral joint pathology
  • Use of prohibited medication or herbal remedies as described in the section of concomitant medications
  • Prior administration of gantenerumab (RO4909832)
  • Any vaccination within two months prior to Day 1
  • Participation in an investigational drug medicinal product or medical device study within 30 days before screening or within seven times the elimination half-life if known, whichever is longer.
  • Participants who regularly smoke more than 5 cigarettes daily or equivalent and are unable or unwilling not to smoke during the in-house period.
  • Donation or loss of blood over 500 mL within three months prior to Day 1 and donation of blood for the duration of the study until follow-up.
  • Evidence of clinically significant brain magnetic resonance imaging (MRI) findings, including lacunar infarct, territorial infarct or macroscopic hemorrhage, microbleed or area of leptomeningeal hemosiderosis, or deep white matter lesions corresponding to an overall Fazekas score of ≥ 2.
  • Claustrophobia, presence of pacemakers, aneurysm clips, artificial heart valves, ear implants, or foreign metal objects in the eyes, skin, or body that would contraindicate an MRI scan.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • PRA Health Sciences

    Raleigh, North Carolina, 27612

Other trials in United States

About this study

Official title: A Single-Center, Randomized, Adaptive, Investigator/Subject Blind, Single Ascending Dose, Placebo-Controlled Phase I Study to Investigate the Safety, Tolerability, Immunogenicity and Pharmacokinetics of Intravenously Administered RO7126209 in Healthy Participants

Study BP41192 is a randomized, adaptive, placebo-controlled parallel group study to investigate the safety, tolerability, immunogenicity and pharmacokinetics of single-ascending intravenous (IV) doses of RO7126209 in healthy participants. RO7126209 is being developed for the treatment of Alzheimer's Disease.

Read the detailed description

This study uses a parallel group design, with participants recruited in 5 planned sequential cohorts. Additional cohort(s) may be added if dose escalation stopping criteria are not met after cohort 5. Participants will receive a single IV dose of either RO7126209 or placebo. RO7126209 doses will be administered in ascending order. After the starting dose, subsequent doses will be selected in an adaptive manner during study conduct based on emerging safety, tolerability and PK data.

Being tested
RO7126209, Placebo
Medical subject headings
Alzheimer Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • RO7126209Drug

    Participants will be administered single-ascending intravenous doses of RO7126209 with at least 2 weeks between each dose level. After the starting dose, the subsequent doses will be selected in an adaptive design. Sentinel dosing will be employed.

  • PlaceboDrug

    Participants will be administered a single intravenous dose of matching placebo.

Study groups in NCT04023994
Study groupRoleWhat they receive
PlaceboPlacebo comparatorIn Cohorts 1-5, there were ten participants in total who received placebo, two in each cohort.
Receives: Drug: Placebo
RO7126209 (0.1 mg/kg)ExperimentalHealthy volunteers will be administered a single intravenous dose of RO7126209 (0.1 mg/kg).
Receives: Drug: RO7126209
RO7126209 (0.4 mg/kg)ExperimentalHealthy volunteers will be administered a single intravenous dose of RO7126209 (0.4 mg/kg).
Receives: Drug: RO7126209
RO7126209 (1.2 mg/kg)ExperimentalHealthy volunteers will be administered a single intravenous dose of RO7126209 (1.2 mg/kg).
Receives: Drug: RO7126209
RO7126209 (3.6 mg/kg)ExperimentalHealthy volunteers will be administered a single intravenous dose of RO7126209 (3.6 mg/kg).
Receives: Drug: RO7126209
RO7126209 (7.2 mg/kg)ExperimentalHealthy volunteers will be administered a single intravenous dose of RO7126209 (7.2 mg/kg).
Receives: Drug: RO7126209

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With Adverse Events (AEs)

    An Adverse Event (AE) is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An Adverse Event can therefore be any unfavorable and unintended sign (including abnormal laboratory values or abnormal clinical test results), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as Adverse Events.

    Measured: Up to approximately 9 weeks

Secondary outcomes (11)
  1. Concentration at the End of Infusion (Cend) of RO7126209

    Plasma concentrations of RO7126209 were measured by a specific and validated assay at specified timepoints. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Day 1

  2. Area Under the Plasma Concentration Versus Time Curve From Zero to 24 h Postdose (AUC0-24h) of RO7126209

    Plasma concentrations of RO7126209 were measured by a specific and validated assay. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Days 1 and 2

  3. Area Under the Plasma Concentration Versus Time Curve From Zero to 168h Postdose (AUC0-168h) of RO7126209

    Plasma concentrations of RO7126209 were measured by a specific and validated assay. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Days 1, 2, 3, 4, 5 and 8

  4. Area Under the Plasma Concentration Versus Time Curve From Zero to the Last Measurable Concentration (AUC0-last) of RO7126209

    Plasma concentrations of RO7126209 were measured by a specific and validated assay. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Days 1, 2, 3, 4, 5, 8, 10, 15, 22, 29, 43 and 57

  5. Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUC0-inf)

    Plasma concentrations of RO7126209 were measured by a specific and validated assay. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Days 1, 2, 3, 4, 5, 8, 10, 15, 22, 29, 43 and 57

  6. Terminal Rate Constant (Lambda z) of RO7126209

    Plasma concentrations of RO7126209 were measured by a specific and validated assay. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Days 1, 2, 3, 4, 5, 8, 10, 15, 22, 29, 43 and 57

  7. Apparent Terminal Half-Life (T1/2) of RO7126209

    Plasma concentrations of RO7126209 were measured by a specific and validated assay. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Days 1, 2, 3, 4, 5, 8, 10, 15, 22, 29, 43 and 57

  8. Total Body Clearance Calculated as Dose/AUC (CL) of RO7126209

    Plasma concentrations of RO7126209 were measured by a specific and validated assay. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Days 1, 2, 3, 4, 5, 8, 10, 15, 22, 29, 43 and 57

  9. Volume of Distribution at Steady-State (Vss) of RO7126209

    Plasma concentrations of RO7126209 were measured by a specific and validated assay. Plasma PK parameters of RO7126209 were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Days 1, 2, 3, 4, 5, 8, 10, 15, 22, 29, 43 and 57

  10. Cerebrospinal Fluid (CSF) Concentration of RO7126209

    RO7126209 CSF concentrations were measured by a specific and validated method. Geometric Mean and Coefficient of Variation data are presented below.

    Measured: Day 3 and Day 5

  11. Percentage of Participants With Anti-RO7126209 Antibodies (ADAs)

    The numbers and proportions of Anti-Drug Antibody (ADA) positive participants and ADA negative participants at baseline (baseline prevalence) and after study drug administration (post-baseline incidence during both the treatment and follow-up periods) were summarized per dose group during both the treatment and follow-up period.

    Measured: Days 1, 8, 29 and 57

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Jul 2019
  2. Study start3 Aug 2019
  3. Primary completion17 Jul 2020
  4. Study completion17 Jul 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04023994
Sponsor's protocol ID
BP41192
Status last verified
Jul 2021
First submitted
16 Jul 2019
Last updated
9 Aug 2021
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Qualified researchers may request access to individual patient level data through the clinical study data request platform (www.vivli.org). Further details on Roche's criteria for eligible studies are available here (https://vivli.org/ourmember/roche/). For further details on Roche's Global Policy on the Sharing of Clinical Information and how to request access to related clinical study documents, see here (https://www.roche.com/research\_and\_development/who\_we\_are\_how\_we\_work/clinical\_trials/our\_commitment\_to\_data\_sharing.htm).

Publications

  • Muliaditan M, van Steeg TJ, Avery LB, Sun W, Hammond TR, Hijdra D, Choi SL, Pillai N, Leksa NC, Mavroudis PD. Translational minimal physiologically based pharmacokinetic model for transferrin receptor-mediated brain delivery of antibodies. MAbs. 2025 Dec;17(1):2515414. doi: 10.1080/19420862.2025.2515414. Epub 2025 Jun 26.

    PubMed 40568753

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing RO7126209 in people with Alzheimers Disease, run by Hoffmann-La Roche at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 Aug 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants With Adverse Events (AEs) (time frame: Up to approximately 9 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04023994, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Aug 2021.

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