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STI-1558

Phase 1

SARS-CoV-2 Infection | Small molecule | Infectious Disease |Co-Diagnostics, Inc.|Last Updated: Aug 14, 2023

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-BlindCONTROLLEDBiomarker
Total Trials1
Total Enrollment79
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05523739Safety and Efficacy Study of STI-1558 in Healthy Adults and SARS-CoV-2-Positive PatientsPHASE1 COMPLETED 79Sep 16, 2022Mar 29, 2023Aug 14, 20231 China
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Study Endpoints
Primary Endpoints
AE, laboratory tests, thyroid function, physical examination, vital signs.
Day 7 for part 1 and day 29 for part 2.

Incidence and severity of AEs up to 6 days for part 1 and 21 days for part 2 post-dosing.

Secondary Endpoints
Proportion of changes from baseline in SARS-CoV-2 RNA quantification levels on D3, D5, D7, D10, D14, D21, D29.
Day3, Day5, Day7, Day10, Day14, Day21, Day29
Proportion of SARS-CoV-2 RNA quantification levels below the lower limit of quantification on D3, D5, D7, D10, D14, D21, D29.
Day3, Day5, Day7, Day10, Day14, Day21, Day29.
Pharmacokinetic parameter of AUC
Day1, Day2, Day3 for part 1 and Day1, Day6, Day7, Day8 for part 2
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Part 1: Cohort 1EXPERIMENTALParticipants will receive a single 300 mg dose of STI-1558 or placebo. Cohort 1 will dose 6 subjects to STI-1558 and 2 subjects to placebo.
Part 1: Cohort 2EXPERIMENTALParticipants will receive a single 600 mg dose of STI-1558 or placebo. Cohort 2 will dose 6 subjects to STI-1558 and 2 subjects to placebo.
Part 1: Cohort 3EXPERIMENTALParticipants will receive a single 1200 mg dose of STI-1558 or placebo. Cohort 3 will dose 6 subjects to STI-1558 and 2 subjects to placebo.
Part 1: Cohort 4EXPERIMENTALParticipants will receive a single 2000 mg dose of STI-1558 or placebo. Cohort 4 will dose 6 subjects to STI-1558 and 2 subjects to placebo.
Part 2: Cohort 1EXPERIMENTALParticipants will receive a 300 mg dose of STI-1558 or placebo q12h on Day1 to Day7 and once in the morning on Day8 for a total of 15 doses. Cohort 1 will dose 6 subjects to STI-1558 and 2 subjects to placebo.
Part 2: Cohort 2EXPERIMENTALParticipants will receive a 600 mg dose of STI-1558 or placebo q12h on Day1 to Day7 and once in the morning on Day8 for a total of 15 doses. Cohort 2 will dose 16 subjects to STI-1558 and 8 subjects to placebo.
Part 2: Cohort 3EXPERIMENTALParticipants will receive a 800 mg dose of STI-1558 or placebo q12h on Day1 to Day7 and once in the morning on Day8 for a total of 15 doses. Cohort 3 will dose 16 subjects to STI-1558 and 8 subjects to placebo.
Interventions
NameTypeDescription
STI-1558DRUGAn oral small molecule prodrug that effectively inhibits the SARS-CoV-2 main protease (Mpro).
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Part 1 1. Subjects are fully informed of the study and sign the informed consent document prior to any procedure. 2. Healthy subjects aged ≥18 but ≤45 years old, regardless of gender. 3. BMI ≥18, but ≤30kg/m2, and weight ≥45, but ≤100kg. 4. Good health status, with no...

Countries:China
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