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Ad5 CEA Vaccine

Phase 1

Colorectal Cancer | Monoclonal antibody | Oncology |ImmunityBio, Inc.|Last Updated: Nov 25, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment43

FDA Designations

No designations recorded

Clinical trial landscape

Ad5 CEA Vaccine · 1 trial · 4 indications

Phase 1 1
NCT01147965QUILT-3.038: Active Immunotherapy CEA Vaccine in Patients With Malignancies Expressing CEAColorectal Cancer
COMPLETED43 Analytics
PHASE1COMPLETED
QUILT-3.038: Active Immunotherapy CEA Vaccine in Patients With Malignancies Expressing CEA
Colorectal CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Dose Limiting Toxicities
Every 3 weeks for 9 weeks and every 3 months for 1 year

The primary objective of this protocol is to determine the safety of immunization with Ad5 \[E1-, E2b-\]-CEA(6D) in patients with advanced or metastatic CEA-expressing malignancies. A dosing scheme will be considered safe if \<33% of patients treated at a dosage level experience DLT (e.g., 0 of 3, ≤1 of 6, ≤3 of 12 or ≤5 of 18 patients).

Number of Participants With Adverse Events
from the time of first dose to the 30 days past last dose of study drug, up to 330 days

Secondary Endpoints

Clinical Response Rate
from first dose up to a year follow up
Immune Response Against CEA - IFN-gamma Secreting Cells by Visit
Baseline (Week 0) up to Week 9
CEA Antibody (ng/mL) by Visit
Baseline (Week 0) to Week 9
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort 1EXPERIMENTALCohort 1: Ad5 \[E1-, E2b-\]-CEA(6D) at a dose of 1 x 10\^9 particles
Cohort 2EXPERIMENTALCohort 2: Ad5 \[E1-, E2b-\]-CEA(6D) at a dose of 1 x 10\^10 particles
Cohort 3EXPERIMENTALCohort 3: Ad5 \[E1-, E2b-\]-CEA(6D) at a dose of 1 x 10\^11 particles
Cohort 4EXPERIMENTALCohort 4 (Phase II Cohort at MTD): Ad5 \[E1-, E2b-\]-CEA(6D) at a dose of 1 x 10\^11 particles
Cohort 5EXPERIMENTALCohort 5: Ad5 \[E1-, E2b-\]-CEA(6D) at a dose of 5 x 10\^11 particles
Cohort 6EXPERIMENTALCohort 6: Ad5 \[E1-, E2b-\]-CEA(6D) at a dose of 5 x 10\^11 particles

Interventions

NameTypeDescription
Ad5 CEA VaccineBIOLOGICALAd5 \[E1-, E2b-\]-CEA(6D) Vector Vaccine
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Eligibility Criteria

Age Range21 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites2

Inclusion Criteria 1. Histologically confirmed diagnosis of malignancy expressing CEA. Because this is a safety and immunogenicity study, patients are NOT required to have measurable or evaluable disease by Response Evaluation Criteria in Solid Tumors (RECIST). 2. For all tumor types other than col...

Countries:United States
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Frequently asked questions about Ad5 CEA Vaccine

What is Ad5 CEA Vaccine used for?

Ad5 CEA Vaccine is an investigational active immunotherapy being studied for the treatment of colorectal cancer, as well as other malignancies that express carcinoembryonic antigen (CEA), including lung, breast, and prostate cancers. It is currently in Phase 1 clinical development.

What does Ad5 CEA Vaccine target?

Ad5 CEA Vaccine targets the carcinoembryonic antigen (CEA), a protein expressed on the surface of certain cancer cells. By targeting CEA, the vaccine is designed to stimulate the immune system to recognize and attack cancer cells that express this antigen.

Who makes Ad5 CEA Vaccine?

Ad5 CEA Vaccine is being developed by ImmunityBio, Inc. (NASDAQ: IBRX). The company is conducting clinical trials to evaluate the vaccine's safety and efficacy in patients with CEA-expressing malignancies.

What phase is Ad5 CEA Vaccine in?

Ad5 CEA Vaccine is in Phase 1 clinical development. It is an investigational agent and has not been approved by regulatory authorities. One Phase 1 trial has been completed, and the vaccine is not currently in active clinical trials.

What clinical trials is Ad5 CEA Vaccine in?

Ad5 CEA Vaccine has been studied in one clinical trial, NCT01147965, titled 'QUILT-3.038: Active Immunotherapy CEA Vaccine in Patients With Malignancies Expressing CEA.' This Phase 1 trial enrolled 43 patients with colorectal, lung, breast, or prostate cancer and was conducted in the United States.

Is Ad5 CEA Vaccine the same as QUILT-3.038?

Ad5 CEA Vaccine is the investigational drug studied in the clinical trial known as QUILT-3.038, which has the National Clinical Trial number NCT01147965. QUILT-3.038 is the trial name, not an alternative name for the vaccine itself.