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A Phase 1 Study to Evaluate the Safety, Tolerability, and Immunogenicity of UB-313 in Healthy Participants

A Phase 1 Randomized, Double-Blind, Placebo-Controlled, First-in-Human Study to Evaluate the Safety, Tolerability, and Immunogenicity of UBITh® CGRP Immunotherapy (UB-313) in Healthy Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05477095
Enrollment
40
Registered
2022-07-28
Start date
2022-07-06
Completion date
2023-10-06
Last updated
2025-03-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Migraine

Brief summary

This first in-human (FIH) study of UB-313, an anti-calcitonin gene-related peptide based immunotherapeutic candidate, is designed to assess the safety, tolerability, and immunogenicity of 4 selected UB-313 dose regimens in healthy adults.

Detailed description

This is a single-site, randomized, double-blind, placebo-controlled, multidose regimen, FIH study of UB-313, an anti-CGRP peptide-based immunotherapy candidate. The double-blind period will include dose escalation and cohort staggering for up to 4 planned dose levels of UB-313 or placebo in 4 cohorts of healthy participants. All eligible participants will be enrolled in the study for up to 44 weeks, consisting of IM injections of UB-313 or placebo at Week 0 (Baseline, Day 1), Week 4, and Week 12. The End of Treatment (EoT) is defined as Week 16, followed by a follow-up period up to Week 44.

Interventions

BIOLOGICALUB-313

A synthetic peptide-based immunotherapy

BIOLOGICALPlacebo

Normal saline

Sponsors

Vaxxinity, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Is a male or female aged 18 to 55 years old, inclusive, at time of informed consent. * Has a body mass index between 18 and 30 kg/m2, inclusive at Screening, and with a minimum weight of 50 kg. * Male participants and their partners of childbearing potential must commit to the use of highly effective contraceptives for the study duration and for at least 12 weeks after the last dose. Men must refrain from donating sperm during this same period. * Female participants must be of nonchildbearing potential, or, for women of childbearing potential, must be willing to practice highly effective contraception throughout the duration of the study and for at least 24 weeks following the last dose. * Other inclusion criteria apply

Exclusion criteria

* Has a history of clinically significant medical or psychiatric conditions, which in the opinion of the Investigator may compromise the participant's safety or the scientific value of the study, posing an unacceptable risk to the participant or interfere with the participant's ability to comply with study procedures or abide by study restrictions. * Presents any concern by the Investigator regarding safe participation in the study or for any other reason (including contraindication to MRI) that the Investigator considers the participant inappropriate for participation in the study. * Has a recent history (within the past year of Screening) of migraine headache. * Has unsuitable skin characteristics for the dermal capsaicin challenge as determined by the Investigator. * Has not demonstrated at least a 100% increase in dermal blood flow following capsaicin challenge as part of Screening procedures and measured through laser speckle contrast imaging. * Other

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment-Emergent Adverse Events44 weeksThe number and percentage of participants with TEAEs were tabulated.
Immunogenicity Measured by Serum Anti-CGRP Antibodies.Weeks 0, 1, 4, 5, 8, 12, 13, 16, 20, 28, 36 and 44; Week 0, Week 16 and Week 44 are reportedImmunogenicity measured by blood anti-CGRP antibody titers, reported as Optical Density (OD) of 1:25 dilution.

Secondary

MeasureTime frameDescription
Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeeks 0, 4, 8, 12, 16, 20Number of Participants with inhibition of capsaicin-induced increase in dermal blood flow

Countries

Belgium

Participant flow

Participants by arm

ArmCount
UB-313 Cohort 1
UB-313 100mcg administered by intramuscular (IM) injection at Week 0, Week 4 and Week 12 UB-313: A synthetic peptide-based immunotherapy
8
UB-313 Cohort 2
UB-313 300mcg administered by IM injection at Week 0 and 100mcg at Week 4 and Week 12 UB-313: A synthetic peptide-based immunotherapy
8
UB-313 Cohort 3
UB-313 300mcg administered by IM injection at Week 0, Week 4 and Week 12 UB-313: A synthetic peptide-based immunotherapy
8
UB-313 Cohort 4
UB-313 600mcg administered by IM injection at Week 0 and 100mcg at Week 4 and Week 12 UB-313: A synthetic peptide-based immunotherapy
8
Placebo Comparator
Placebo (normal saline), administered by IM injection at Week 0, Week 4 and Week 12 Placebo: Normal saline
8
Total40

Baseline characteristics

CharacteristicUB-313 Cohort 1TotalPlacebo ComparatorUB-313 Cohort 4UB-313 Cohort 3UB-313 Cohort 2
Age, Continuous35.1 years
STANDARD_DEVIATION 13.66
31.1 years
STANDARD_DEVIATION 10.32
26.0 years
STANDARD_DEVIATION 8.88
30.4 years
STANDARD_DEVIATION 7.87
31.6 years
STANDARD_DEVIATION 11.92
32.5 years
STANDARD_DEVIATION 8.52
BMI25.39 kg/m2
STANDARD_DEVIATION 3.388
23.76 kg/m2
STANDARD_DEVIATION 2.931
23.68 kg/m2
STANDARD_DEVIATION 2.6
21.88 kg/m2
STANDARD_DEVIATION 2.384
24.29 kg/m2
STANDARD_DEVIATION 3.624
23.58 kg/m2
STANDARD_DEVIATION 1.834
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
8 Participants40 Participants8 Participants8 Participants8 Participants8 Participants
Sex: Female, Male
Female
3 Participants21 Participants4 Participants5 Participants6 Participants3 Participants
Sex: Female, Male
Male
5 Participants19 Participants4 Participants3 Participants2 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 80 / 80 / 80 / 80 / 8
other
Total, other adverse events
7 / 88 / 86 / 88 / 87 / 8
serious
Total, serious adverse events
0 / 80 / 80 / 80 / 80 / 8

Outcome results

Primary

Immunogenicity Measured by Serum Anti-CGRP Antibodies.

Immunogenicity measured by blood anti-CGRP antibody titers, reported as Optical Density (OD) of 1:25 dilution.

Time frame: Weeks 0, 1, 4, 5, 8, 12, 13, 16, 20, 28, 36 and 44; Week 0, Week 16 and Week 44 are reported

ArmMeasureGroupValue (MEAN)Dispersion
UB-313 Cohort 1Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 0 (Baseline)0.5161 Optical Density (OD)Standard Deviation 0.1697
UB-313 Cohort 1Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 44 (EoS)1.4449 Optical Density (OD)Standard Deviation 0.8055
UB-313 Cohort 1Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 16 (EoT)2.7271 Optical Density (OD)Standard Deviation 1.2042
UB-313 Cohort 2Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 16 (EoT)2.1900 Optical Density (OD)Standard Deviation 1.0378
UB-313 Cohort 2Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 0 (Baseline)0.4720 Optical Density (OD)Standard Deviation 0.1688
UB-313 Cohort 2Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 44 (EoS)1.2225 Optical Density (OD)Standard Deviation 0.576
UB-313 Cohort 3Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 16 (EoT)3.2903 Optical Density (OD)Standard Deviation 0.7628
UB-313 Cohort 3Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 0 (Baseline)0.6024 Optical Density (OD)Standard Deviation 0.2292
UB-313 Cohort 3Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 44 (EoS)1.7653 Optical Density (OD)Standard Deviation 0.9176
UB-313 Cohort 4Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 0 (Baseline)0.5495 Optical Density (OD)Standard Deviation 0.0994
UB-313 Cohort 4Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 44 (EoS)1.5401 Optical Density (OD)Standard Deviation 0.7779
UB-313 Cohort 4Immunogenicity Measured by Serum Anti-CGRP Antibodies.Week 16 (EoT)3.0731 Optical Density (OD)Standard Deviation 0.9075
Placebo ComparatorImmunogenicity Measured by Serum Anti-CGRP Antibodies.Week 16 (EoT)0.4776 Optical Density (OD)Standard Deviation 0.0861
Placebo ComparatorImmunogenicity Measured by Serum Anti-CGRP Antibodies.Week 0 (Baseline)0.4900 Optical Density (OD)Standard Deviation 0.0862
Placebo ComparatorImmunogenicity Measured by Serum Anti-CGRP Antibodies.Week 44 (EoS)0.5614 Optical Density (OD)Standard Deviation 0.1321
Primary

Number of Participants With Treatment-Emergent Adverse Events

The number and percentage of participants with TEAEs were tabulated.

Time frame: 44 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
UB-313 Cohort 1Number of Participants With Treatment-Emergent Adverse Events7 Participants
UB-313 Cohort 2Number of Participants With Treatment-Emergent Adverse Events8 Participants
UB-313 Cohort 3Number of Participants With Treatment-Emergent Adverse Events6 Participants
UB-313 Cohort 4Number of Participants With Treatment-Emergent Adverse Events8 Participants
Placebo ComparatorNumber of Participants With Treatment-Emergent Adverse Events7 Participants
Secondary

Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood Flow

Number of Participants with inhibition of capsaicin-induced increase in dermal blood flow

Time frame: Weeks 0, 4, 8, 12, 16, 20

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
UB-313 Cohort 1Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowBaseline0 Participants
UB-313 Cohort 1Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 41 Participants
UB-313 Cohort 1Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 80 Participants
UB-313 Cohort 1Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 120 Participants
UB-313 Cohort 1Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 160 Participants
UB-313 Cohort 1Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 200 Participants
UB-313 Cohort 2Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 160 Participants
UB-313 Cohort 2Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 200 Participants
UB-313 Cohort 2Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowBaseline1 Participants
UB-313 Cohort 2Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 80 Participants
UB-313 Cohort 2Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 120 Participants
UB-313 Cohort 2Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 40 Participants
UB-313 Cohort 3Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 120 Participants
UB-313 Cohort 3Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 160 Participants
UB-313 Cohort 3Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowBaseline0 Participants
UB-313 Cohort 3Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 80 Participants
UB-313 Cohort 3Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 40 Participants
UB-313 Cohort 3Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 200 Participants
UB-313 Cohort 4Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 120 Participants
UB-313 Cohort 4Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 40 Participants
UB-313 Cohort 4Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 80 Participants
UB-313 Cohort 4Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 200 Participants
UB-313 Cohort 4Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 160 Participants
UB-313 Cohort 4Pharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowBaseline0 Participants
Placebo ComparatorPharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 161 Participants
Placebo ComparatorPharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 80 Participants
Placebo ComparatorPharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 40 Participants
Placebo ComparatorPharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 200 Participants
Placebo ComparatorPharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowWeek 121 Participants
Placebo ComparatorPharmacodynamics of the Immune Response Measured by Capsaicin-induced Increase in Dermal Blood FlowBaseline0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026