ClinicalTrials.gg
CompletedNCT05432388Updated Jun 12, 2026Results posted

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

A Phase 2 interventional study of LOU064 and placebo in Allergy, Peanut, sponsored by Novartis Pharmaceuticals. Completed at 24 sites in United States. Open to participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2026-06-12.

Sponsored by Novartis Pharmaceuticals (part of Novartis) · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
76
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study 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 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.

02

Conditions studied

  • Allergy, Peanut

Keywords

  • Groundnut Hypersensitivity
  • Hypersensitivity, Peanut
  • Peanut Allergy
  • Food Allergy
  • Oral food challenge
  • IgE
  • Remibrutinib
  • BTKi
03

In context

Peanut Hypersensitivity

166 studies on the registry are indexed under Peanut Hypersensitivity; 27 are open to participants now.

This study's enrollment of 76 is above the median of 50 across 127 interventional studies indexed under Peanut Hypersensitivity.

Browse Peanut Hypersensitivity studies →

Lead sponsor

Novartis Pharmaceuticals is the lead sponsor of 2,718 studies on the registry; 221 are open to participants now.

Of its 585 completed or terminated interventional studies of FDA-regulated products, 438 (75%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 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

Exclusion criteria

Exclusion Criteria:

  • History of severe or life-threatening 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- (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.

Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
76 participants (actual)

Study arms

  • Experimental
    LOU064 10 mg

    LOU064 10 mg was administered orally twice per day, on Days 1 through 28.

    Drug: LOU064

  • Experimental
    LOU064 25 mg

    LOU064 25 mg was administered orally twice per day, on Days 1 through 28.

    Drug: LOU064

  • Experimental
    LOU064 100 mg

    LOU064 100 mg was administered orally twice per day, on Days 1 through 28.

    Drug: LOU064

  • Experimental
    Placebo + LOU064 25 mg

    Placebo was administered orally twice per day, on Days 1 through 21 followed by LOU064 25 mg twice per day, on Days 22 through 28.

    Drug: LOU064 · Drug: placebo

  • Placebo comparator
    Placebo

    Placebo was administered orally twice per day, on Days 1 through 28.

    Drug: placebo

Interventions

  • DrugLOU064

    oral tablets

    Also known as: remibrutinib

  • Drugplacebo

    oral tablets

06

What researchers measure

Primary outcomes

  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.

    Time frame: Week 4

Secondary outcomes

  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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 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.

    Time frame: 4 weeks

07

Results

Posted Jun 12, 2026

Participant flow

Participants took part in 22 investigative sites in United States.

Participant flow — Overall Study
MilestoneLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlacebo
Started1919181010
Pharmacodynamic (pd) analysis set19171779
Completed15181698
Not completed41212
Withdrew: Physician decision10001
Withdrew: Protocol deviation20100
Withdrew: Withdrawal by subject01001
Withdrew: Technical problems10110

Outcome measures

PrimaryPercentage 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.

Time frame:
Week 4
Reported as:
Number · percentage of participants
Percentage of Participants Who Tolerated a Single Dose of >= 600 mg (1044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms
percentage of participantsLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo
Percentage of Participants Who Tolerated a Single Dose of >= 600 mg (1044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms40.050.086.70.0
Statistical analysis
  • LOU064 10 mg vs Placebo · Bayesian Analysis · Difference in marginal response rate: 0.34 · 80% CI 0.17 to 0.51
  • LOU064 10 mg vs Placebo · Bayesian Analysis · Posterior probability: 0.989Posterior Probability that LOU064 10 mg outperforms Placebo (i.e., difference in marginal response rate is above 0)
  • LOU064 25 mg vs Placebo · Bayesian Analysis · Difference in marginal response rate: 0.45 · 80% CI 0.27 to 0.62
  • LOU064 25 mg vs Placebo · Bayesian Analysis · Posterior probability: 0.997Posterior Probability that LOU064 25 mg outperforms Placebo (i.e., difference in marginal response rate is above 0)
  • LOU064 100 mg vs Placebo · Bayesian Analysis · Difference in marginal response rate: 0.77 · 80% CI 0.61 to 0.90
  • LOU064 100 mg vs Placebo · Bayesian Analysis · Posterior probability: 1.000Posterior Probability that LOU064 100 mg outperforms Placebo (i.e., difference in marginal response rate is above 0)
SecondaryPercentage 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.

Time frame:
Week 4
Reported as:
Number · percentage of participants
Percentage of Participants Who Tolerated a Single Dose of >= 1000 mg (2044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms
percentage of participantsLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlacebo
Percentage of Participants Who Tolerated a Single Dose of >= 1000 mg (2044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms33.343.880.0100.00.0
SecondaryPercentage 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.

Time frame:
Week 4
Reported as:
Number · percentage of participants
Percentage of Participants Who Tolerated a Single Dose of 3000 mg (5044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms
percentage of participantsLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlacebo
Percentage of Participants Who Tolerated a Single Dose of 3000 mg (5044 mg Cumulative Tolerated Dose) of Peanut Protein Without Dose-limiting Symptoms6.743.846.733.30.0
SecondaryPercentage 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.

Time frame:
Week 4
Reported as:
Number · percentage of participants
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
percentage of participantsPlacebo + LOU064 25 mgPlacebo
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 Placebo100.00.0
SecondaryNumber 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.

Time frame:
4 weeks
Reported as:
Number · participants
Number of Participants Presenting Maximum Severity of Symptoms Occurring at Any Challenge Dose of Peanut Protein up to and Including 3000mg During the DBPCFC
participantsLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlacebo
None03100
Mild54721
Moderate88736
Severe21110
SecondaryChange From Baseline of Peanut-specific IgE (Including Peanut Components)

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

Time frame:
Baseline, Day 25 pre-dose and Day 31 (End of Study)
Reported as:
Median · kU/L
Change From Baseline of Peanut-specific IgE (Including Peanut Components)
kU/LLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlacebo
Day 25 pre-dose2.220 (-0.32 to 35.43)1.020 (-4.21 to 92.94)2.015 (-117.10 to 143.30)5.800 (-0.46 to 86.20)11.100 (-31.00 to 85.50)
Day 31 (End of Study)2.080 (-5.94 to 49.00)0.400 (-12.45 to 129.25)1.500 (-9.14 to 66.50)5.655 (-0.44 to 196.00)11.000 (-16.80 to 70.50)
SecondaryChange From Baseline of Peanut-specific IgG4 (Including Peanut Components)

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

Time frame:
Baseline, Day 25 pre-dose and Day 31 (End of Study)
Reported as:
Median · mg/L
Change From Baseline of Peanut-specific IgG4 (Including Peanut Components)
mg/LLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlacebo
Day 25 pre-dose0.010 (-0.22 to 1.75)0.000 (-0.46 to 0.22)0.000 (-1.52 to 1.23)0.000 (-0.22 to 0.06)0.000 (-0.22 to 1.62)
Day 31 (End of Study)0.020 (-0.27 to 1.64)-0.020 (-0.83 to 0.41)0.000 (-1.57 to 0.40)-0.005 (-0.22 to 0.51)0.000 (-0.17 to 1.87)
SecondaryChange 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.

Time frame:
Baseline, Day 26
Reported as:
Mean · mm
Change From Screening in Allergen-specific Skin Prick Test (SPT) Mean Wheal Diameters
mmLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlacebo
Change From Screening in Allergen-specific Skin Prick Test (SPT) Mean Wheal Diameters-0.54 ± 2.999-1.09 ± 1.879-1.16 ± 3.042-0.61 ± 1.9262.46 ± 5.200
SecondaryMaximum 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.

Time frame:
Day 8 and Day 25: pre-dose, 0.5, 1, 2, 3, 4 hours.
Reported as:
Mean · ng/mL
Maximum Observed Blood Concentration (Cmax) of LOU064
ng/mLLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mg
Day 828.2 ± 20.344.3 ± 25.6172 ± 107—
Day 2530.5 ± 16.640.2 ± 22.9133 ± 76.571.0 ± 34.7
SecondaryArea 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.

Time frame:
Day 8 and Day 25: pre-dose, 0.5, 1, 2, 3, 4 hours.
Reported as:
Mean · h*ng/mL
Area Under Blood Concentration-time Curve (AUClast) of LOU064
h*ng/mLLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mg
Day 843.5 ± 21.087.2 ± 56.3308 ± 155—
Day 2544.0 ± 19.982.9 ± 57.5261 ± 145135 ± 56.4
SecondaryArea 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.

Time frame:
Day 8 and Day 25: pre-dose, 0.5, 1, 2, 3, 4 hours.
Reported as:
Mean · h*ng/mL
Area Under Plasma Concentration-time Curve (AUCtau) of LOU064
h*ng/mLLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mg
Day 850.1 ± 20.791.9 ± 55.6350 ± 176—
Day 2548.7 ± 22.370.0 ± 41.8250 ± 159157 ± 65.1
SecondaryTime 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.

Time frame:
Day 8 and Day 25: pre-dose, 0.5, 1, 2, 3, 4 hours.
Reported as:
Median · hours
Time to Reach Maximum Observed Blood Concentration (Tmax) of LOU064
hoursLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mg
Day 80.542 (0.500 to 3.00)1.00 (0.500 to 2.20)1.00 (0.520 to 2.00)—
Day 250.817 (0.500 to 2.00)1.00 (0.500 to 2.00)1.00 (0.500 to 2.00)0.967 (0.500 to 1.30)
SecondaryNumber 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.

Time frame:
4 weeks
Reported as:
Count of participants · Participants
Number of Participants Presenting Maximum Severity of Symptoms Occurring at Any Challenge Dose of Peanut Protein up to and Including 1000mg During the DBPCFC
ParticipantsLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlacebo
None03100
Mild54721
Moderate88736
Severe21110

Adverse events

Collected over Adverse events were reported from first dose of study treatment until end of study treatment plus follow up period, up to a maximum duration of approximately 58 days.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
LOU064 10 mg0/19 (0%)0/19 (0%)10/19 (52.6%)
LOU064 25 mg0/19 (0%)0/19 (0%)8/19 (42.1%)
LOU064 100 mg0/18 (0%)0/18 (0%)6/18 (33.3%)
Placebo + LOU064 25 mg (Placebo Period)0/10 (0%)0/10 (0%)2/10 (20%)
Placebo + LOU064 25 mg (LOU064 Period)0/10 (0%)0/10 (0%)5/10 (50%)
Placebo0/10 (0%)0/10 (0%)8/10 (80%)
Total0/76 (0%)0/76 (0%)38/76 (50%)
Most frequent other events
Showing 10 of 52
Most frequent other events
EventLOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mg (Placebo Period)Placebo + LOU064 25 mg (LOU064 Period)PlaceboTotal
NasopharyngitisInfections and infestations0/190/190/180/102/101/103/76
CoughRespiratory, thoracic and mediastinal disorders1/190/190/180/102/100/103/76
Nasal congestionRespiratory, thoracic and mediastinal disorders1/190/191/180/101/102/105/76
PharyngitisInfections and infestations0/192/190/180/100/100/102/76
HeadacheNervous system disorders1/192/190/181/100/101/105/76
Abdominal discomfortGastrointestinal disorders0/190/191/181/100/100/102/76
NauseaGastrointestinal disorders0/190/190/181/100/101/102/76
VomitingGastrointestinal disorders1/190/190/180/101/100/102/76
FatigueGeneral disorders0/191/190/180/100/101/102/76
PyrexiaGeneral disorders0/190/190/180/100/101/101/76

Baseline characteristics

Age, Continuous
Age, Continuous(years)LOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlaceboTotal
Mean24.8 ± 7.4127.8 ± 9.9323.6 ± 3.3321.4 ± 3.3425.0 ± 8.8824.9 ± 7.38
Sex: Female, Male
Sex: Female, Male(Participants)LOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlaceboTotal
Female9555428
Male1014135648
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)LOU064 10 mgLOU064 25 mgLOU064 100 mgPlacebo + LOU064 25 mgPlaceboTotal
White1315128755
Black or African American123107
Asian313119
Multiple210025
08

Study locations

24 sites
  • Allervie Clinical Research
    Birmingham, Alabama 35209, United States
  • Arkansas Children's Hospital
    Little Rock, Arkansas 72202, United States
  • California Allergy and Asthma Medical Group
    Los Angeles, California 90025, United States
  • Allergy and Asthma Clin Res Inc
    Walnut Creek, California 94598, United States
  • Asthma and Allergy Associates P C
    Colorado Springs, Colorado 80907, United States
  • Colorado Allergy and Asthma Ctr PC
    Denver, Colorado 80230, United States
  • Childrens National Hospital
    Washington D.C., District of Columbia 20010, United States
  • Treasure Valley Medical Research
    Boise, Idaho 83706, United States
  • Midwest Allergy Sinus Asthma SC
    Normal, Illinois 61761, United States
  • Asthma and Allergy Center of Chicago S C
    River Forest, Illinois 60305, United States
  • Bluegrass Allergy Research .
    Lexington, Kentucky 40509, United States
  • Bluegrass Allergy Research
    Lexington, Kentucky 40509, United States
  • Family Allergy and Asthma
    Louisville, Kentucky 40217, United States
  • Johns Hopkins Hospital
    Baltimore, Maryland 21287, United States
  • Institute for Asthma and Allergy PC
    Chevy Chase, Maryland 20815, United States
  • Massachusetts General Hospital
    Boston, Massachusetts 02114, United States
  • University of Michigan Clinical Trials Office
    Ann Arbor, Michigan 48109, United States
  • CenExel HRI
    Berlin, New Jersey 08009, United States
  • CR Services Acquisition US Main center
    Columbus, Ohio 43213, United States
  • CR Services Acquisition US
    Columbus, Ohio 43213, United States
  • Vital Prospects Clinical Research Institute
    Tulsa, Oklahoma 74136, United States
  • Western Sky Medical Research
    El Paso, Texas 79924, United States
  • Allergy Associates of Utah
    Sandy City, Utah 84093, United States
  • Seattle Allergy and Asthma Rsch
    Seattle, Washington 98115, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: 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

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05432388
Responsible party
Sponsor
First posted
Jun 27, 2022
Start date
Oct 12, 2022
Primary completion
Mar 11, 2025
Completion
Mar 11, 2025
Results posted
Jun 12, 2026
Last update
Jun 12, 2026

Oversight

Data monitoring committee
No
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 May 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Remibrutinib

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