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aglatimagene besadenovec

Phase 3

Prostate Cancer | Monoclonal antibody | Oncology |Candel Therapeutics, Inc.|Last Updated: Jul 30, 2025

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-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment898
FDA Designations
FAST_TRACKRMATORPHAN_DRUG
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01436968Phase 3 Study of ProstAtak® Immunotherapy With Standard Radiation Therapy for Localized Prostate CancerPHASE3 ACTIVE NOT_RECRUITING 711Sep 1, 2011Dec 1, 2030Jul 30, 202573 United States, Puerto Rico
NCT02768363Randomized Controlled Trial of CAN-2409 Immunotherapy During Active Surveillance for Prostate Cancer (ULYSSES)PHASE2 ACTIVE NOT_RECRUITING 187May 1, 2016Dec 1, 2026Jul 30, 202523 United States, Mexico
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Study Endpoints
Primary Endpoints
Disease free survival defined as the time from randomization until the date of the first failure event will be compared for the ProstAtak® arm versus the placebo control arm. The analyses will be based on the intent to treat population.
Assessed at each visit every 6 months through year 5 until event occurs.
Progression-free survival (PFS)
Baseline to study completion, approximately 5 years

Progression-free survival is defined as the time from randomization to evidence of histological disease progression or death due to prostate cancer

Secondary Endpoints
Prostate cancer specific survival and overall survival will be compared for the ProstAtak® arm versus the placebo control arm.
Assessed at each visit every 6 months through year 5 after which long-term follow up of general health status will continue yearly.
PSA nadir will be compared for the ProstAtak® arm versus the placebo control arm.
Assessed at each visit every 6 months through year 5.
Patient reported Health Related Quality of Life outcomes will be collected using the Expanded Prostate Cancer Index Composite (EPIC-26) questionnaire. The change in QOL over time will be compared for the ProstAtak® arm versus the placebo control arm.
Assessed at baseline and at 3, 6, 12, 18 and 24 months after completion of radiation.
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
ProstAtak®EXPERIMENTALAglatimagene besadenovec (CAN-2409) + valacyclovir + radiation therapy +/- ADT
ControlPLACEBO_COMPARATORPlacebo + valacyclovir + radiation therapy +/- ADT
CAN-2409ACTIVE_COMPARATORPatients randomized to the active arm will receive two courses of aglatimagene besadenovec (CAN-2409) + valacyclovir
PlaceboPLACEBO_COMPARATORPatients randomized to the placebo arm will receive two corresponding courses of placebo + valacyclovir
Interventions
NameTypeDescription
Aglatimagene besadenovec + valacyclovirBIOLOGICALPatients will receive three courses of ProstAtak® each consisting of aglatimagene besadenovec injection + oral valacyclovir. AdV-tk injection will be delivered to the prostate via trans-rectal ultrasound guided injection as follows: 1. The first injection will be given at least 15 days and not more than 8 weeks before starting radiation. 2. The second injection will be 0-3 days before initiation of radiation therapy. 3. The third injection will be 15-22 days after the 2nd injection. The prodrug, valacyclovir, will be administered at a fixed dose for 14 days after each AdV-tk injection. Standard external beam radiation therapy will be delivered to the prostate. Short-term androgen deprivation therapy (maximum of 6 months) is optional but must be decided before enrollment to allow for stratification.
Placebo + valacyclovirBIOLOGICALPatients will receive three courses each consisting of placebo injection + oral valacyclovir. Placebo injection will be delivered to the prostate via trans-rectal ultrasound guided injection as follows: 1. The first injection will be given at least 15 days and not more than 8 weeks before starting radiation. 2. The second injection will be 0-3 days before initiation of radiation therapy. 3. The third injection will be 15-22 days after the 2nd injection. The prodrug, valacyclovir, will be administered at a fixed dose for 14 days after each placebo injection. Standard external beam radiation therapy will be delivered to the prostate. Short-term androgen deprivation therapy (maximum of 6 months) is optional but must be decided before enrollment to allow for stratification.
aglatimagene besadenovecBIOLOGICALAglatimagene besadenovec will be delivered to the prostate via trans-rectal ultrasound guided injection followed by 14 days of oral prodrug, valacyclovir. The second aglatimagene besadenovec injection will be 2-3 weeks after the first followed by 14 days of valacyclovir.
placeboBIOLOGICALPlacebo will be delivered to the prostate via trans-rectal ultrasound guided injection followed by 14 days of oral prodrug, valacyclovir. The second placebo injection will be 2-3 weeks after the first followed by 14 days of valacyclovir.
valacyclovirDRUGOral prodrug to be given for 14 days starting the day after each aglatimagene besadenovec or placebo injection.
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Eligibility Criteria
Age Range18 Years — N/A
SexMALE
Healthy VolunteersNo
Study Sites73

Inclusion Criteria include: * Localized prostate cancer meeting the NCCN criteria of Intermediate Risk or patients having only one NCCN high-risk feature * NCCN Intermediate Risk is defined as having at least one of the following: PSA 10-20 ng/ml, Gleason score =7, T2b-T2c * High Risk with a s...

Countries:United StatesPuerto RicoMexico
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Competitive Landscape -Prostate Cancer 259 trials
CompanyTickerTrialsLead PhaseDrugs
Merck & Co., Inc.MRK7PHASE3Pembrolizumab, Enzalutamide, Ifinatamab deruxtecan, Docetaxel, Prednisone
AstraZeneca PLCAZN20PHASE3olaparib, abiraterone, Saruparib, Abiraterone, Darolutamide
Pfizer Inc.PFE12PHASE3Talazoparib with enzalutamide, PF-06821497, Docetaxel, Enzalutamide, Leuprolide Open Label
Johnson & JohnsonJNJ21PHASE3Apalutamide, Androgen Deprivation Therapy, Niraparib, Abiraterone, Prednisone
Eli Lilly and CompanyLLY9PHASE3Abemaciclib, Abiraterone, Prednisone or Prednisolone, -PNT2002, Enzalutamide
Amgen Inc.AMGN7PHASE3Xaluritamig, Abiraterone, Enzalutamide, Cabazitaxel, Docetaxel
Novartis AG Sponsored ADRNVS28PHASE3177Lu-PSMA-617, 68Ga-PSMA-11, ARDT, ADT, AAA617
Exelixis, Inc.EXEL4PHASE3Cabozantinib, Atezolizumab, Abiraterone, Enzalutamide, Prednisone
Candel Therapeutics, Inc.CADL3PHASE3Aglatimagene besadenovec + valacyclovir, aglatimagene besadenovec, valacyclovir, aglatimagene besadenovec + valacyclovir
Bristol-Myers Squibb CompanyBMY2PHASE3BMS-986365, Enzalutamide, Abiraterone, Docetaxel, Predinsone/Prednisolone
BioNTech SE Sponsored ADRBNTX1PHASE3BNT324, Docetaxel, Prednisone/prednisolone
Telix Pharmaceuticals Limited Sponsored ADRTLX3PHASE368Ga-PSMA-11, 177Lu-TLX591, Enzalutamide, Abiraterone, Docetaxel
Sanofi SA Sponsored ADRSNY2PHASE3abiraterone, Docetaxel, Cabazitaxel
Regeneron Pharmaceuticals, Inc.REGN4PHASE2REGN2810, Degarelix, Leuprolide, Docetaxel, BPX-601
Veracyte, Inc.VCYT2PHASE2Darolutamide, Zoladex, Zoladex LA, Decapeptyl sustained release, Depo-Eligard
Kyntra Bio, Inc.KYNB2PHASE2FG-3246, FOR46, Enzalutamide, Pegfilgrastim
Lantheus Holdings IncLNTH3PHASE3Undisclosed
IDEAYA Biosciences, Inc.IDYA3PHASE1IDE-161, Pembrolizumab, IDE034, IDE574, Fulvestrant
Xencor, Inc.XNCR1PHASE2vudalimab
GSK plc Sponsored ADRGSK2PHASE1GSK5471713, GSK5458514
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT01436968primaryCompletionDate: changed
LOWMay 26, 2026NCT02768363primaryCompletionDate: changed
LOWMay 24, 2026NCT01436968studyFirstPostDate: changed
LOWMay 24, 2026NCT02768363studyFirstPostDate: changed