Recent Updates
Recently added Catalysts

Hecolin Recombinant Hepatitis E Vaccine

Phase 2

Hepatitis E Virus Infection | Monoclonal antibody | Infectious Disease |Co-Diagnostics, Inc.|Last Updated: Apr 29, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
Premium
Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
Premium
Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment1,040
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06306196Immunogenicity and Safety of Hecolin® in HIV Positive/Negative Adults and in ChildrenPHASE2 RECRUITING 1,040Apr 4, 2024Jan 1, 2026Apr 29, 20253 South Africa
Unlock Drug Trial Details
Study Endpoints
Primary Endpoints
Seroresponse rate
4 weeks post third dose of Hecolin®

Seroresponse rate (antibody response greater than four times or more increase of anti-HEV IgG in paired sera) at 4 weeks post third dose of Hecolin® administered at 0, 1 and 6 months to healthy children (2-17 years) as compared to healthy adults (18-45 years)

Proportion of immediate adverse events
Within 30 minutes post each dose of vaccination

Proportion of immediate adverse events within 30 minutes post each dose of vaccination in all study participants

Proportion of solicited local and systemic adverse events
Within 7 days post each dose

Proportion of solicited local and systemic adverse events within 7 days post each dose of vaccination in all study participants

Proportion of unsolicited adverse events
Within 28 days post each dose

Proportion of unsolicited adverse events within 28 days post each dose of vaccination in all study participants

Proportion of SAEs, MAAEs and AESIs
Post dose 1 until 6 months post last dose

Proportion of Serious adverse events (SAEs), Medically attended adverse events (MAAEs) and Adverse events of special interest (AESIs) post dose 1 until 6 months post last dose of vaccination

Secondary Endpoints
GMC of anti-HEV IgG
4 weeks post third dose
SR
4 weeks post two doses of Hecolin®
SR and GMC of anti-HEV IgG
4 weeks post third dose of Hecolin®
Unlock Study Endpoints
Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
Group A1 (Three doses of Hecolin®; HIV negative adults aged 18-45 years)EXPERIMENTALThree doses of Hecolin® Recombinant Hepatitis E Vaccine administered at 0, 1 and 6 months to HIV negative participants, age 18-45 years old, 232 participants
Group A2 (Three doses of Hecolin®; HIV positive adults aged 18-45 years)EXPERIMENTALThree doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0, 1 and 6 months, to HIV positive participants, age 18-45 years old, 178 participants
Group B1 (Three doses of Hecolin®; healthy adolescents aged 12-17 years)EXPERIMENTALThree doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0, 1 and 6 months, to age 12-17 years old, 70 participants
Group B2 (Two doses of Hecolin®; healthy adolescents aged 12-17 years)EXPERIMENTALTwo doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0, 1 and 6 months) and one dose of Placebo, administered at 1-month timepoint, to age 12-17 years old, 70 participants
Group B3 (Placebo; healthy adolescents aged 12-17 years)PLACEBO_COMPARATORThree doses of Placebo, administered at 0, 1 and 6 months, to age 12-17 years old, 35 participants
Group C1 (Three doses of Hecolin®; healthy children aged 6-11 years)EXPERIMENTALThree doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0, 1 and 6 months, to age 6-11 years old, 70 participants
Group C2 (Two doses of Hecolin®; healthy children aged 6-11 years)EXPERIMENTALTwo doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0 and 6 months and one dose of Placebo, administered at 1-month timepoint, to age 6-11 years old, 70 participants
Group C3 (Placebo; healthy children aged 6-11 years)PLACEBO_COMPARATORThree doses of Placebo, administered at 0, 1 and 6 months, to age 6-11 years old, 35 participants
Group D1 (Three doses of Hecolin®; healthy children aged 2-5 years)EXPERIMENTALThree doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0, 1 and 6 months, to age 2-5 years old, 40 participants
Group D2 (Two doses of Hecolin®; healthy children aged 2-5 years)EXPERIMENTALTwo doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0 and 6 months and of Placebo, administered at 1-month timepoint, to age 2-5 years old, 40 participants
Group D3 (Placebo; healthy children aged 2-5 years)PLACEBO_COMPARATORThree doses of Placebo, administered at 0, 1 and 6 months, to age 2-5 years old, 40 participants
Group B4 (Two doses of Hecolin®; healthy children aged 12-17 years)EXPERIMENTALTwo doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0, and 1 month, to age 12-17 years old, 50 participants
Group B5 (Placebo; healthy children aged 12-17 years)EXPERIMENTALTwo doses of Placebo, administered at 0, and 1 month, to age 12-17 years old, 10 participants
Group C4 (Two doses of Hecolin®; healthy children aged 6-11 years)EXPERIMENTALTwo doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0, and 1 month, to age 6-11 years old, 50 participants
Group C5 (Placebo; healthy children aged 6-11 years)EXPERIMENTALTwo doses of Placebo, administered at 0, and 1 month, to age 6-11 years old, 10 participants
Group D4 (Two doses of Hecolin®; healthy children aged 2-5 years)EXPERIMENTALTwo doses of Hecolin® Recombinant Hepatitis E Vaccine, administered at 0, and 1 month, to age 2-5 years old, 50 participants
Group D5 (Placebo; healthy children aged 2-5 years)EXPERIMENTALTwo doses of Placebo, administered at 0, and 1 month, to age 2-5 years old, 10 participants
Interventions
NameTypeDescription
Hecolin® Recombinant Hepatitis E VaccineBIOLOGICAL30㎍/dose, 0.5mL administered intramuscularly
Isotonic Sodium Chloride injectionBIOLOGICAL0.5mL administered intramuscularly
Unlock Study Design Details
Eligibility Criteria
Age Range2 Years — 45 Years
SexALL
Healthy VolunteersYes
Study Sites3

Inclusion Criteria (healthy participants only): 1. Healthy participants 2 to 45 years of age at enrollment, 2. Participants/Parent(s)/LAR who have voluntarily given informed consent/assent, 3. Participants/Parent(s)/LAR willing to follow the study procedures and available for the entire duration of...

Countries:South Africa
Unlock Eligibility Criteria