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JST-018 combination of 3 monoclonal antibodies

Phase 1

Antiviral Drug | Monoclonal antibody | Infectious Disease |Evotec SE|Last Updated: May 19, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment48
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07595458Phase 1 Study on the Safety, Tolerability, and Pharmacokinetics of JST-018 in Healthy AdultsPHASE1 NOT YET_RECRUITING 48Jun 11, 2026Oct 4, 2027May 19, 20261 United States
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Study Endpoints
Primary Endpoints
Safety and tolerability of of JST-018 administered intramuscularly (IM)
From injection to Day 7

Incidence of solicited local (injection site) and systemic AEs post-injection through Day 7 (with the inpatient and outpatient participant diaries being collected on Day 3 and Day 8, respectively)

Safety and tolerability of of JST-018 administered IM
From injection to final visit at Week 48

Incidence of unsolicited AEs through end of study (EOS)

Safety and tolerability of JST-018 administered as IM
From injection to final visit at Week 48

Incidence of Clinically Significant Changes in Vital Sign Measurements

Secondary Endpoints
Pharmacokinetic Cmax of JST-018
From enrollment to the end of study at 48 weeks
Pharmacokinetic Tmax of JST-018
Time Frame: From enrollment to the end of study at 48 weeks
Pharmacokinetic Tlast of JST-018
From enrollment to the end of study at 48 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
JST-018 Investigational ProductACTIVE_COMPARATOR -
JST-017 PlaceboPLACEBO_COMPARATOR -
Interventions
NameTypeDescription
JST-018 combination of 3 monoclonal antibodiesBIOLOGICALMonoclonal antibodies
PlaceboDRUGPlacebo Comparator
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Eligibility Criteria
Age Range18 Years — 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. Healthy men or women 18 to 55 years of age 2. BMI between 18 and 32 kg/m2 3. Negative serum pregnancy test 4. Use of highly effective birth control method(s) for a minimum of 60 days prior to consent and is willing to continue use for at least 12 months, or abstinence 5. In g...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT07595458primaryCompletionDate: changed
LOWMay 24, 2026NCT07595458studyFirstPostDate: changed
LOWMay 21, 2026NCT07595458NEW_TRIAL: changed
LOWMay 21, 2026NCT07595458NEW_TRIAL: changed