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Allergy, PeanutPhase 2NCT05432388

Study of Efficacy, Safety and Tolerability of Remibrutinib in Adult Participants With an Allergy to Peanuts

A Phase 2 study testing LOU064 in people with Allergy, Peanut, run by Novartis Pharmaceuticals at 24 sites 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

A study to evaluate the safety, efficacy and tolerability of remibrutinib at three doses versus placebo in adult participants who have a confirmed allergy to peanuts. The efficacy was measured by the ability of participants to tolerate increasing doses of peanut protein during an oral food challenge after 1 month of… Read more about this study

Who is it for?
Ages 18 to 55 years
Conditions the study is for
Allergy, Peanut
What is being tested?
LOU064
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
76 participants
Where
24 sitesUnited States
Study dates
12 Oct 2022to 11 Mar 2025
Phase
Phase 2
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 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Medical History of allergy to peanuts
  • Positive peanut IgE >= 0.35 kUA/L
  • Positive Skin Prick test for peanut allergen during screening for study
  • Positive Oral Food Challenge to peanut during screening for study
  • Willingness to comply with study schedule and procedures and avoid other allergens during study period

Who cannot join

  • History of severe or life-threatening hypersensitivity event leading to ICU admission or intubation within 60 days of screening
  • Uncontrolled asthma
  • Bleeding risk or coagulation disorder(s)
  • Use of anticoagulants or anti-platelets (aspirin or clopidogrel may be permitted)
  • History of splenectomy
  • Any significant disease that would put the safety of the patient at risk. This includes, but is not limited to: history of cancer, significant cardiac disease/history, hematology disorders, history of GI bleeding, active infectious process, liver disease, renal disease, immunologic disease (stable diabetes and thyroid disease may be permitted), alcohol or drug abuse, etc.
  • Other protocol-defined inclusion/exclusion criteria may apply.

Trial locations and contacts

24 sites in 1 country.

24 sites in 1 country

United States24 sites
  • University of Michigan Clinical Trials Office

    Ann Arbor, Michigan, 48109

  • Johns Hopkins Hospital

    Baltimore, Maryland, 21287

  • CenExel HRI

    Berlin, New Jersey, 08009

  • Allervie Clinical Research

    Birmingham, Alabama, 35209

  • Treasure Valley Medical Research

    Boise, Idaho, 83706

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

  • Institute for Asthma and Allergy PC

    Chevy Chase, Maryland, 20815

  • Asthma and Allergy Associates P C

    Colorado Springs, Colorado, 80907

  • CR Services Acquisition US Main center

    Columbus, Ohio, 43213

  • CR Services Acquisition US

    Columbus, Ohio, 43213

  • Colorado Allergy and Asthma Ctr PC

    Denver, Colorado, 80230

  • Western Sky Medical Research

    El Paso, Texas, 79924

  • Bluegrass Allergy Research .

    Lexington, Kentucky, 40509

  • Bluegrass Allergy Research

    Lexington, Kentucky, 40509

  • Arkansas Children's Hospital

    Little Rock, Arkansas, 72202

  • California Allergy and Asthma Medical Group

    Los Angeles, California, 90025

  • Family Allergy and Asthma

    Louisville, Kentucky, 40217

  • Midwest Allergy Sinus Asthma SC

    Normal, Illinois, 61761

  • Asthma and Allergy Center of Chicago S C

    River Forest, Illinois, 60305

  • Allergy Associates of Utah

    Sandy City, Utah, 84093

  • Seattle Allergy and Asthma Rsch

    Seattle, Washington, 98115

  • Vital Prospects Clinical Research Institute

    Tulsa, Oklahoma, 74136

  • Allergy and Asthma Clin Res Inc

    Walnut Creek, California, 94598

  • Childrens National Hospital

    Washington D.C., District of Columbia, 20010

Other trials in United States

About this study

Official title: A One Month, Investigator and Participant Blinded Study to Investigate the Efficacy and Safety of Remibrutinib (LOU064) at Multiple Dose Levels in Adult Participants With Peanut Allergy

A study to evaluate the safety, efficacy and tolerability of remibrutinib at three doses versus placebo in adult participants who have a confirmed allergy to peanuts. The efficacy was measured by the ability of participants to tolerate increasing doses of peanut protein during an oral food challenge after 1 month of study treatment.

Read the detailed description

This was a randomized, participant- and investigator-blinded, placebo-controlled study to assess the safety and clinical efficacy of oral LOU064 versus placebo across five treatment arms in participants with a medically confirmed diagnosis of IgE-mediated peanut allergy for one-month treatment period (up to 5 weeks). Participants had oral food challenges at the beginning of the study and at the end of the treatment period to assess their symptoms from increasing doses of peanut allergen.

Conditions
Allergy, Peanut
Being tested
LOU064, placebo
Keywords
Groundnut Hypersensitivity, Hypersensitivity, Peanut, Peanut Allergy, Food Allergy, Oral food challenge, IgE, Remibrutinib, BTKi
Medical subject headings
Peanut Hypersensitivity, Food Hypersensitivity

What participants receive

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

  • LOU064Drug

    Also called remibrutinib

    oral tablets

  • placeboDrug

    oral tablets

Study groups in NCT05432388
Study groupRoleWhat they receive
LOU064 10 mgExperimentalLOU064 10 mg was administered orally twice per day, on Days 1 through 28.
Receives: Drug: LOU064
LOU064 25 mgExperimentalLOU064 25 mg was administered orally twice per day, on Days 1 through 28.
Receives: Drug: LOU064
LOU064 100 mgExperimentalLOU064 100 mg was administered orally twice per day, on Days 1 through 28.
Receives: Drug: LOU064
Placebo + LOU064 25 mgExperimentalPlacebo was administered orally twice per day, on Days 1 through 21 followed by LOU064 25 mg twice per day, on Days 22 through 28.
Receives: Drug: LOU064; Drug: placebo
PlaceboPlacebo comparatorPlacebo was administered orally twice per day, on Days 1 through 28.
Receives: Drug: placebo

What is being measured

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

  1. Percentage of Participants Who Tolerated a Single Dose of >= 600 mg (1044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms

    Responder rate was defined as the percentage of participants tolerating a single dose of >= 600 mg (1044 mg cumulative tolerated dose) of peanut protein without dose-limiting symptoms during the double blind placebo controlled food challenge (DBPCFC). The cumulative tolerated dose is the sum of the tolerated doses, not including the reactive dose. Dose-limiting symptoms indicate a true allergic reaction occurring during administration of a single dose of peanut protein at the DBPCFC that should preclude the administration of any further doses in the view of the investigator. Symptoms that require administration of any rescue medication were considered dose-limiting symptoms.

    Measured: Week 4

Secondary outcomes (12)
  1. Percentage of Participants Who Tolerated a Single Dose of >= 1000 mg (2044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms

    Responder rate was defined as the percentage of participants tolerating a single dose of >= 1000 mg (2044 mg cumulative tolerated dose) of peanut protein without dose-limiting symptoms during the double blind placebo controlled food challenge (DBPCFC). The cumulative tolerated dose is the sum of the tolerated doses, not including the reactive dose. Dose-limiting symptoms indicate a true allergic reaction occurring during administration of a single dose of peanut protein at the DBPCFC that should preclude the administration of any further doses in the view of the investigator. Symptoms that require administration of any rescue medication were considered dose-limiting symptoms.

    Measured: Week 4

  2. Percentage of Participants Who Tolerated a Single Dose of 3000 mg (5044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms

    Responder rate was defined as the percentage of participants tolerating a single dose of >= 3000 mg (5044 mg cumulative tolerated dose) of peanut protein without dose-limiting symptoms during the double blind placebo controlled food challenge (DBPCFC). The cumulative tolerated dose is the sum of the tolerated doses, not including the reactive dose. Dose-limiting symptoms indicate a true allergic reaction occurring during administration of a single dose of peanut protein at the DBPCFC that should preclude the administration of any further doses in the view of the investigator. Symptoms that require administration of any rescue medication were considered dose-limiting symptoms.

    Measured: Week 4

  3. Percentage of Participants Who Tolerated a Single Dose of >= 600 mg (1044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms - Placebo+LOU064 25 mg and Placebo

    Responder rate was defined as the percentage of participants tolerating a single dose of >= 600 mg (1044 mg cumulative tolerated dose) of peanut protein without dose-limiting symptoms during the double blind placebo controlled food challenge (DBPCFC). The cumulative tolerated dose is the sum of the tolerated doses, not including the reactive dose. Dose-limiting symptoms indicate a true allergic reaction occurring during administration of a single dose of peanut protein at the DBPCFC that should preclude the administration of any further doses in the view of the investigator. Symptoms that require administration of any rescue medication were considered dose-limiting symptoms.

    Measured: Week 4

  4. Number of Participants Presenting Maximum Severity of Symptoms Occurring at Any Challenge Dose of Peanut Protein up to and Including 3000mg During the DBPCFC

    Maximum severity of symptoms occurring at any challenge dose of peanut protein up to and including 3000 mg during the DBPCFC conducted at one month, will be categorized as 4 levels: None, Mild, Moderate, Severe.

    Measured: 4 weeks

  5. Change From Baseline of Peanut-specific IgE (Including Peanut Components)

    IgE is a soluble biomarker that provide LOU064 response to treatment and disease severity biomarkers.

    Measured: Baseline, Day 25 pre-dose and Day 31 (End of Study)

  6. Change From Baseline of Peanut-specific IgG4 (Including Peanut Components)

    IgG4 is a soluble biomarker that provide LOU064 response to treatment and disease severity biomarkers.

    Measured: Baseline, Day 25 pre-dose and Day 31 (End of Study)

  7. Change From Screening in Allergen-specific Skin Prick Test (SPT) Mean Wheal Diameters

    An allergen specific skin prick test (SPT) is a commonly used diagnostic tool. In this study a titration SPT using peanut allergen provided additional information on the impact of Bruton's tyrosine kinase (BTK) suppression on skin mast cells. Skin reactions were recorded after 15 minutes of applying allergen to the pricked location. The size of the wheel and flare (the longest diameter and the midpoint orthogonal diameter) at each site were recorded.

    Measured: Baseline, Day 26

  8. Maximum Observed Blood Concentration (Cmax) of LOU064

    Cmax is the maximum (peak) observed blood concentration of LOU064 after dose administration. Pharmacokinetic parameters were calculated using a non-compartmental method (WinNonLin Version 8.3.4 or higher). The LOU064 concentration was determined by a validated Liquid chromatography-mass spectrometry (LC-MS/MS) method with a lower limit of quantification (LLOQ) of 0.1 ng/mL.

    Measured: Day 8 and Day 25: pre-dose, 0.5, 1, 2, 3, 4 hours.

  9. Area Under Blood Concentration-time Curve (AUClast) of LOU064

    AUClast is the area under the blood concentration-time curve from time zero to the time of last quantifiable concentration (tlast) of LOU064. Pharmacokinetic parameters were calculated using a non-compartmental method (WinNonLin Version 8.3.4 or higher). The LOU064 concentration was determined by a validated Liquid chromatography-mass spectrometry (LC-MS/MS) method with a lower limit of quantification (LLOQ) of 0.1 ng/mL.

    Measured: Day 8 and Day 25: pre-dose, 0.5, 1, 2, 3, 4 hours.

  10. Area Under Plasma Concentration-time Curve (AUCtau) of LOU064

    AUCtau is the area under the plasma concentration-time curve. Estimation of AUCtau values required extrapolation of the concentration-time profile from the last measured time-point at 4 h to the end of dosing interval at 12 h post-dose. In some cases, this extrapolation was not possible. For this reason, the number of participants with measurable AUCtau values was less when compared to those with AUClast. Pharmacokinetic parameters were calculated using a non-compartmental method (WinNonLin Version 8.3.4 or higher). The LOU064 concentration was determined by a validated Liquid chromatography-mass spectrometry (LC-MS/MS) method with a lower limit of quantification (LLOQ) of 0.1 ng/mL.

    Measured: Day 8 and Day 25: pre-dose, 0.5, 1, 2, 3, 4 hours.

  11. Time to Reach Maximum Observed Blood Concentration (Tmax) of LOU064

    Tmax is the time to reach maximum (peak) of LOU064 blood concentration after single-dose administration (time). Pharmacokinetic parameters were calculated using a non-compartmental method (WinNonLin Version 8.3.4 or higher). The LOU064 concentration was determined by a validated Liquid chromatography-mass spectrometry (LC-MS/MS) method with a lower limit of quantification (LLOQ) of 0.1 ng/mL.

    Measured: Day 8 and Day 25: pre-dose, 0.5, 1, 2, 3, 4 hours.

  12. Number of Participants Presenting Maximum Severity of Symptoms Occurring at Any Challenge Dose of Peanut Protein up to and Including 1000mg During the DBPCFC

    Responder rate was defined as the percentage of participants tolerating a single dose of >= 3000 mg (5044 mg cumulative tolerated dose) of peanut protein without dose-limiting symptoms during the double blind placebo controlled food challenge (DBPCFC). The cumulative tolerated dose is the sum of the tolerated doses, not including the reactive dose. Dose-limiting symptoms indicate a true allergic reaction occurring during administration of a single dose of peanut protein at the DBPCFC that should preclude the administration of any further doses in the view of the investigator. Symptoms that require administration of any rescue medication were considered dose-limiting symptoms.

    Measured: 4 weeks

Timeline

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

  1. First posted27 Jun 2022
  2. Study start12 Oct 2022
  3. Primary completion11 Mar 2025
  4. Study completion11 Mar 2025

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
76 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05432388
Sponsor's protocol ID
CLOU064I12201
Other IDs
2021-006950-30
Status last verified
May 2026
First submitted
31 May 2022
Last updated
12 Jun 2026
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing LOU064 in people with Allergy, Peanut, run by Novartis Pharmaceuticals at 24 sites 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 5 inclusion and 7 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 12 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 24 sites 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 12 Jun 2026). 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 Who Tolerated a Single Dose of >= 600 mg (1044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms (time frame: Week 4). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 12 Jun 2026.

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