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aglatimagene besadenovec + valacyclovir

Phase 2

Prostate Cancer Patients Treated by Radiotherapy | Monoclonal antibody | Oncology |Candel Therapeutics, Inc.|Last Updated: Mar 20, 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
ACTIVE_CONTROLLEDBiomarker
Total Trials1
Total Enrollment45
FDA Designations
FAST_TRACKRMATORPHAN_DRUG
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07332000A Biomarker Study in Men With Localized Prostate Cancer Treated With Aglatimagene BesadenovecPHASE2 RECRUITING 45Oct 30, 2025Aug 1, 2026Mar 20, 20267 United States
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Study Endpoints
Primary Endpoints
Biodistribution of aglatimagene besadenovec
Up to 3 months post last injection of aglatimagene besadenovec.

Evaluation of shedding of aglatimagene besadenovec viral genomes in urine, blood, and semen samples using validated bioassays over time.

Secondary Endpoints
Biomarkers of immune activation and tumor burden
Up to 3 months post last injection of aglatimagene besadenovec.
Incidence of Treatment-Emergent Adverse Events (Safety and Tolerability)
Up to 3 months post last injection of aglatimagene besadenovec.
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeBASIC_SCIENCE
Treatment Arms
ArmTypeDescription
TreatmentEXPERIMENTALPatients receiving aglatimagene besadenovec + valacyclovir along with External Beam Radiation Therapy (EBRT)
ControlACTIVE_COMPARATORExternal Beam Radiation Therapy (EBRT) alone
Interventions
NameTypeDescription
aglatimagene besadenovec + valacyclovirBIOLOGICALaglatimagene besadenovec: a genetically modified replication-defective adenoviral vector expressing the herpes simplex virus (HSV) thymidine kinase (tk) gene. Patients in the treatment arm will receive 3 intraprostatic injections of aglatimagene besadenovec, with each injection followed by a 14-day course of valacyclovir. Patients will have aglatimagene besadenovec administered either transrectally or transperineally.
External Beam Radiation Therapy (EBRT)RADIATIONStandard of care standard or moderately hypofractionated prostate-only external beam radiation therapy (EBRT)
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Eligibility Criteria
Age Range18 Years — N/A
SexMALE
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: 1. Participants must give study-specific informed consent prior to enrollment 2. Histologically confirmed adenocarcinoma of the prostate 3. Participants meeting National Comprehensive Cancer Network (NCCN) intermediate-risk criteria 4. Participants must be planning and medically...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT07332000primaryCompletionDate: changed
LOWMay 24, 2026NCT07332000studyFirstPostDate: changed