Recent Updates
Recently added Catalysts

AdV-tk

Phase 3

Malignant Glioma | Gene therapy | Oncology |Candel Therapeutics, Inc.|Trials Updated: Oct 2, 2026

AdV-tk development status

Highest phase Phase 3 (NCT07660094)
Phase scored for CADLPhase 1
Registered trials 9 across 1 sponsor since Jan 2008

AdV-tk target and mechanism

ModalityGene therapy

Also known as Aglatimagene Besadenovec, CAN-2409

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLEDDMC
Total Trials10
Total Enrollment1,643

FDA Designations

No designations recorded

AdV-tk clinical trials

AdV-tk · 10 trials · 17 indications

Phase 3 2Phase 2 3Phase 1 5
NCT07660094Aglatimagene Besadenovec + Prodrug and Pembrolizumab vs Docetaxel for Stage IV Non-Squamous NSCLC Progressing on Pembrolizumab (AURORA)Non-squamous, Non-Small Cell Lung Cancer
RECRUITING500 Analytics
NCT01436968Phase 3 Study of ProstAtak® Immunotherapy With Standard Radiation Therapy for Localized Prostate CancerProstate Cancer
ACTIVE NOT_RECRUITING711 Analytics
PHASE3RECRUITING
Aglatimagene Besadenovec + Prodrug and Pembrolizumab vs Docetaxel for Stage IV Non-Squamous NSCLC Progressing on Pembrolizumab (AURORA)
Non-squamous, Non-Small Cell Lung CancerUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Phase 3 Study of ProstAtak® Immunotherapy With Standard Radiation Therapy for Localized Prostate Cancer
Prostate CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Overall Survival
From date of randomization until date of death from any cause, assessed for a minimum of 24 months

To evaluate whether treatment with aglatimagene besadenovec (CAN-2409) plus valacyclovir and continued pembrolizumab improves overall survival (OS) compared to standard of care (SoC) docetaxel chemotherapy, in participants with Stage IV non-squamous non-small cell lung cancer (NSCLC) whose disease has progressed following prior pembrolizumab-based platinum chemoimmunotherapy

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.
Biodistribution of aglatimagene besadenovec
Up to 5 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.

Response rate
12 months

Tumor response as measured by RECIST criteria including overall response rate (ORR) and/or disease control rate (DCR)

Safety graded by CTCAE version 5.0
12 weeks

Frequency of adverse events

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

Incidence of adverse events
Up to 2 years

National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0 will be used for scoring toxicity and adverse events. The severity and frequency of toxicity will be tabulated by the tested dose or doses using descriptive statistics. The proportions of subjects who experienced grade 3 or above toxicities will be estimated, along with 95% confidence intervals by each type of toxicity.

Incidence of treatment emergent adverse events
8 weeks

Secondary Endpoints

Time to meaningful deterioration based on the Non-Small Cell Lung Cancer Symptom Assessment Questionnaire (NSCLC-SAQ) Total Score
Baseline to Week 12
Change from baseline of Total Score of NSCLC-SAQ at Week 12
Baseline to Week 12
Change from baseline of Global Health Status/QoL Score of EORTC-QLQ-30 at Week 12
Baseline to Week 12
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm 1:Continued pembrolizumab with two courses of Aglatimagene besadenovec plus prodrugEXPERIMENTALPatients continue to receive pembrolizumab with two courses of Aglatimagene besadenovec plus valacyclovir
Arm 2: DocetaxelACTIVE_COMPARATORPatients receive standard of care docetaxel
ProstAtak®EXPERIMENTALAglatimagene besadenovec (CAN-2409) + valacyclovir + radiation therapy +/- ADT
ControlPLACEBO_COMPARATORPlacebo + valacyclovir + radiation therapy +/- ADT
TreatmentEXPERIMENTALPatients receiving aglatimagene besadenovec + valacyclovir along with External Beam Radiation Therapy (EBRT)
CohortsOTHERCohort 1A and 1B - persistent but stable disease at least 18 weeks after starting ICI treatment Cohort 2A and 2B - radiographic progressive disease at least 18 weeks after starting ICI treatment Cohort 3 - refractory disease defined as progressed by imaging at least 9 weeks after starting ICI treatment (CLOSED TO ENROLLMENT)
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
Cohort 1: MGMT Unmethylated PatientsEXPERIMENTALAfter confirmation of high grade glioma, AdV-tk injection into wall of resection cavity. Valacyclovir starting 1-3 days post-surgery for 14 days. Radiation begins approximately day 8 and continues for 6 weeks. Temozolomide started after complete valacyclovir and stop when MGMT unmethylated result obtained. Nivolumab every 2 weeks x 26 doses up to 52 weeks. MRI every 8 weeks until progression.
Cohort 2: MGMT Methylated & undetermined PatientsEXPERIMENTALAfter confirmation of high grade glioma, AdV-tk injection into wall of resection cavity. Valacyclovir starting 1-3 days post-surgery for 14 days. Radiation begins approximately day 8. Temozolomide started after complete valacyclovir and continue during radiation then 5 week break and then begin adjuvant temozolomide dosing. Nivolumab every 2 weeks x 26 doses up to 52 weeks. MRI every 8 weeks until progression.
Study ArmEXPERIMENTALAdV-tk + valacyclovir
AdV-tkEXPERIMENTALAdV-tk + valacyclovir in combination with standard of care radiation
A resectableEXPERIMENTALArm A is for resectable tumors. The first AdV-tk course is given prior to surgery by CT or EUS guided injection into the tumor followed by 14 days of valacyclovir. The second AdV-tk injection is into the tumor bed at the time of surgery again followed by 14 days of valacyclovir.
B locally advancedEXPERIMENTALArm B is for locally advanced tumors for which chemoradiation is the planned standard of care treatment. AdV-tk is delivered by CT or EUS guided injection into the tumor. The first AdV-tk injection is given prior to starting chemoradiation and the second in week 3 of chemoradiation. Both injections are followed by 14 days of valacyclovir. Enrollment has been completed for Arm B.
AEXPERIMENTALArm A for unresectable malignant glioma was closed due to poor accrual.
BEXPERIMENTALArm B for resectable malignant glioma completed the Phase I accrual and long term follow up continues. A follow on study at dose level 3 was opened as a Phase 2a study (see BrTK02).

Interventions

NameTypeDescription
Aglatimagene BesadenovecBIOLOGICALvia intratumoral injections into lung or lymph nodes at two timepoints
ValacyclovirDRUGOral, for14 days following each aglatimagene besadenovec injection
PembrolizumabBIOLOGICALevery 3 weeks (Q3W) or every 6 weeks (Q6W)
DocetaxelDRUGevery 21 days with standard premedication
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.
External Beam Radiation Therapy (EBRT)RADIATIONStandard of care standard or moderately hypofractionated prostate-only external beam radiation therapy (EBRT)
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.
AdV-tkBIOLOGICALGiven IT
RadiationRADIATIONUndergo RT, 60Gy in 30 daily fractions M-F for 6weeks
TemozolomideDRUGGiven PO during RT 75mg/m2 daily during RT Post RT cycle 1: 150mg/m2 days 1-5 150mg/m2 cycle 2-6: days 1-5 (150-200mg/m2)
NivolumabBIOLOGICALday 15 post surgery 240mg IV q2wks x 26 doses , up to 52 weeks
Laboratory Biomarker AnalysisOTHERcorrelative studies
AdV-tk + valacyclovirBIOLOGICALAdV-tk will be administered intrapleural through pleural catheter followed by oral valacyclovir. Valacyclovir will be administered orally at a fixed dose for 14 days after each AdV-tk administration.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Age ≥ 18 years, at the time of signing the informed consent. 2. Histologically confirmed metastatic Stage IV non-squamous NSCLC. 3. Measurable disease per RECIST v1.1 with at least 1 thoracic lesion amenable to intratumoral injection (e.g., pathological lymph node or lung les...

Countries:United StatesPuerto RicoMexico
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWOct 2, 2026NCT01436968lastUpdatePostDate: changed
LOWOct 2, 2026NCT02768363lastUpdatePostDate: changed
LOWOct 2, 2026NCT01436968lastUpdatePostDate: changed
LOWOct 2, 2026NCT02768363lastUpdatePostDate: changed
MEDIUMSep 16, 2026NCT07332000primaryCompletionDate: changed
MEDIUMSep 16, 2026NCT07332000primaryCompletionDate: changed
MEDIUMSep 16, 2026NCT07332000primaryCompletionDate: changed
MEDIUMSep 16, 2026NCT07332000primaryCompletionDate: changed

Frequently asked questions about AdV-tk

What is AdV-tk?

AdV-tk is an investigational gene therapy developed by Candel Therapeutics, Inc. for several types of cancer. It is studied in malignant glioma, malignant pleural effusion, and pancreatic adenocarcinoma. AdV-tk is given with the antiviral drug valacyclovir and is designed to be used alongside radiation therapy, surgery, or chemoradiation depending on the cancer type.

What is AdV-tk used for?

AdV-tk has been studied in malignant glioma, malignant pleural effusion, and pancreatic adenocarcinoma. Clinical trials have enrolled adults with newly diagnosed high-grade gliomas, glioblastoma multiforme, anaplastic astrocytoma, pancreatic cancer, and pleural effusion linked to lung cancer, mesothelioma, breast cancer, or ovarian cancer.

Who makes AdV-tk?

AdV-tk is developed by Candel Therapeutics, Inc., which trades on the Nasdaq under the ticker CADL. The company has sponsored Phase 1 clinical trials of the therapy in malignant glioma, malignant pleural effusion, and pancreatic adenocarcinoma.

What phase is AdV-tk in?

AdV-tk is in Phase 1 clinical development. All four listed trials are Phase 1 studies and all have been completed, with no active trials currently listed. AdV-tk is investigational and has not been established as an approved therapy.

What clinical trials is AdV-tk in?

AdV-tk has been evaluated in completed Phase 1 trials including NCT03576612 in newly diagnosed high-grade gliomas with nivolumab and radiation, NCT01997190 in malignant pleural effusion, NCT00751270 in malignant gliomas with valacyclovir and radiation, and NCT00638612 in pancreatic cancer with surgery and chemoradiation.