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JCXH-221

Phase 1

COVID-19 | Monoclonal antibody | Infectious Disease |Icon Plc|Last Updated: Sep 19, 2024

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment73

FDA Designations

No designations recorded

Clinical trial landscape

JCXH-221 · 1 trial · 2 indications

Phase 1 1
NCT05743335A Phase 1 Study to Assess the Safety and Immunogenicity of JCXH-221, an MRNA-based Broadly Protective COVID-19 VaccineCOVID-19
COMPLETED73 Analytics
PHASE1COMPLETED
A Phase 1 Study to Assess the Safety and Immunogenicity of JCXH-221, an MRNA-based Broadly Protective COVID-19 Vaccine
COVID-19Unlock trial analytics

Study Endpoints

Primary Endpoints

SAE frequency
Day 1- Day 365 (12 months)

Frequency of serious adverse events (SAEs) characterized by type, severity, duration, and drug relationship, from Day 1 (dosing day) until follow-up completion

Injection site reaction
Day 1- Day 8 (7 days)

Solicited local reactions at the injection site characterized by frequency, severity, and duration, recorded up to 7 days after dosing (Day 8)

Solicited systemic reaction frequency
Day 1- Day 8 (7 days)

Solicited systemic reactions characterized by frequency, severity, duration, and drug relationship, recorded up to 7 days after dosing (Day 8)

AE frequency
Day 1- Day 29 (28 days)

Adverse events (AEs), including unsolicited AEs, characterized by frequency, severity, duration, and drug relationship, for up to 28 days after dosing (Day 29)

Unsolicited treatment-emergent AE frequency
Day 1- Day 29 (28 days)

The proportion of subjects with at least 1 unsolicited treatment-emergent AE occurring up to 28 days after dosing (Day 29)

Medical AE frequency
Day 1- Day 365 (12 months)

Medically attended AEs (MAAEs) characterized by frequency, severity, duration, and drug relationship, from Day 1 until follow-up completion

Secondary Endpoints

SARS-CoV-2 antibody levels
Day 1- Day 181 (~6 months)
SARS-CoV-2 anti-receptor antibody levels
Day 1- Day 181 (~6 months)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Investigational productEXPERIMENTALPatients randomized to this arm will be given the investigational product (JCXH-221).
PlaceboPLACEBO_COMPARATORPatients randomized to this arm will be given a placebo vaccine.

Interventions

NameTypeDescription
JCXH-221BIOLOGICALParticipants will be randomized to either placebo or JCXH-221 for Phase 1. For Phase 2, participants will either be randomized to JCXH-221 or a FDA approved Active comparator.
PlaceboOTHERParticipants will be randomized in Phase 1 to either JCXH-221 or placebo
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites4

Main Inclusion Criteria * Sex: Male or female; female subjects may be of childbearing potential, of nonchildbearing potential, or postmenopausal. * Age: 18 years of age or older, at screening. * Status: Healthy subjects. * Subjects must have completed the full doses for primary vaccination with an ...

Countries:United States
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Frequently asked questions about JCXH-221

What is JCXH-221 used for?

JCXH-221 is an investigational monoclonal antibody being developed for the prevention or treatment of COVID-19. It is currently in Phase 1 clinical development as a broadly protective vaccine against COVID-19, according to a completed clinical trial. The drug is being studied in healthy volunteers aged 18 years and older.

Who makes JCXH-221?

JCXH-221 is being developed by Icon Plc, a company traded on the NASDAQ under the ticker ICLR. The drug is an investigational monoclonal antibody for COVID-19 and is currently in Phase 1 clinical development.

What phase is JCXH-221 in?

JCXH-221 is in Phase 1 clinical development. A Phase 1 study assessing the safety and immunogenicity of JCXH-221 as an mRNA-based broadly protective COVID-19 vaccine has been completed. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is JCXH-221 in?

JCXH-221 has one completed clinical trial, identified as NCT05743335. This Phase 1 study assessed the safety and immunogenicity of JCXH-221 as an mRNA-based broadly protective COVID-19 vaccine. The trial enrolled 73 participants in the United States and was randomized, double-blind, and placebo-controlled.

Is JCXH-221 the same as a vaccine?

JCXH-221 is being studied as an mRNA-based broadly protective COVID-19 vaccine, according to the Phase 1 clinical trial NCT05743335. The drug is a monoclonal antibody modality and is being evaluated for its safety and immunogenicity in healthy volunteers.