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TARA-002

Phase 3

Bladder (Urothelial, Transitional Cell) Cancer | Small molecule | Oncology |Protara Therapeutics, Inc.|Last Updated: Aug 24, 2026

Target and mechanism

Molecular targetNOD2/TLR2
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment284

FDA Designations

BREAKTHROUGH_THERAPYFAST_TRACKORPHAN_DRUGRARE_PEDIATRIC_DISEASE

Clinical trial landscape

TARA-002 · 5 trials · 5 indications

Phase 3 1Phase 2 2Phase 1 2
NCT07480356Efficacy and Safety of Intravesical TARA-002 Compared With Investigator's Choice of Intravesical Chemotherapy in Participants With BCG-naïve High-grade Non-muscle Invasive Bladder CancerBladder (Urothelial, Transitional Cell) Cancer
RECRUITING284 Analytics
PHASE3RECRUITING
Efficacy and Safety of Intravesical TARA-002 Compared With Investigator's Choice of Intravesical Chemotherapy in Participants With BCG-naïve High-grade Non-muscle Invasive Bladder Cancer
Bladder (Urothelial, Transitional Cell) CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of high-grade complete response
Month 6

Incidence of high-grade complete response of intravesical TARA-002 compared to Investigator's choice of intravesical chemotherapy determined by cystoscopy, urine cytology, and bladder biopsy (if applicable)

Proportion of participants with clinical success after one treatment cycle of TARA-002
8 weeks after the last injection
Cohort A and B: Incidence of high-grade Complete Response at any time according to central pathology after treatment with TARA-002
Month 3 to Month 60
Phase 1b, Dose Expansion Phase: Incidence of AEs in subjects with CIS NMIBC with active disease
Day 1 to Day 78

AE = adverse event

Phase 1a, Dose Escalation Phase: Incidence of DLT AEs in subjects with HGTa or CIS NMIBC
Day 1 to Day 43

DLT = dose limiting toxicities; HGTa = high grade Ta; CIS = carcinoma in situ, includes CIS with concomitant Ta

Phase 1a, Dose Escalation Phase: MTD and RP2D of TARA-002 in subjects with HGTa or CIS NMIBC
Day 1 to Day 43

MTD = maximum tolerated dose; RP2D = recommended Phase 2 dose

Secondary Endpoints

Duration of high-grade complete response
Up to Month 60
Treatment emergent adverse events
Up to Month 60
Treatment emergent serious adverse events
Up to Month 60
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
TARA-002 (Arm A)EXPERIMENTAL -
Investigator's choice of intravesical chemotherapyACTIVE_COMPARATOR -
TARA-002EXPERIMENTALTARA-002 is a lyophilized biological preparation for injection containing cells of Streptococcus pyogenes (Group A, type 3) Su strain treated with benzylpenicillin.

Interventions

NameTypeDescription
TARA-002DRUGParticipants will receive 6 weekly instillations of TARA-002. Participants confirmed to have a CR at Week 12 will enter the maintenance treatment period and will receive 3 additional weekly instillations of TARA-002 every 3 months up to Month 19, and then 3 weekly doses at Month 25. Participants who are eligible for reinduction at Week 12 will receive 6 additional weekly instillations of TARA-002. Participants who undergo reinduction and are confirmed to have a CR at Week 24 will enter the maintenance regimen treatment period and will receive 3 weekly instillations of TARA-002 every 3 months up to Month 19, and then 3 weekly doses at Month 25.
Investigator's Choice of Intravesical ChemotherapyDRUGParticipants will receive 6 weekly instillations of Investigator's choice of intravesical chemotherapy. Participants confirmed to have a CR at Week 12 will enter the maintenance regimen treatment period and will receive one intravesical instillation of Investigator's choice of intravesical chemotherapy every 1 month up to Month 25.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites10

Inclusion Criteria: * Male or female participants 18 years of age or older at the time of signing informed consent * Participants who have voluntarily given written informed consent after the nature of the study has been explained according to applicable requirements prior to study entry * Central ...

Countries:United StatesUkraineArgentinaBrazilCanadaJapanTaiwanMoldovaRomania
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Recent Changes (Last 90 Days)

LOWAug 24, 2026NCT05871970lastUpdatePostDate: changed
LOWAug 24, 2026NCT05951179lastUpdatePostDate: changed
LOWAug 24, 2026NCT05871970lastUpdatePostDate: changed
LOWAug 24, 2026NCT05951179lastUpdatePostDate: changed
LOWAug 21, 2026NCT07480356lastUpdatePostDate: changed
LOWAug 21, 2026NCT07480356lastUpdatePostDate: changed
LOWJun 30, 2026NCT05951179lastUpdatePostDate: changed
LOWJun 30, 2026NCT05951179lastUpdatePostDate: changed
LOWJun 30, 2026NCT05951179lastUpdatePostDate: changed
LOWJun 29, 2026NCT07480356Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 29, 2026NCT07480356Status: NOT_YET_RECRUITING → RECRUITING

Frequently asked questions about TARA-002

What is TARA-002 used for?

TARA-002 is an investigational therapy being studied for non-muscle invasive bladder cancer, including carcinoma in situ, and for lymphatic malformations in pediatric patients. It is administered intravesically or intracystically, depending on the condition being treated.

What does TARA-002 target?

TARA-002 targets NOD2 and TLR2, which are pattern recognition receptors involved in innate immune signaling. By engaging these targets, the therapy is designed to stimulate an immune response against the disease.

Who is developing TARA-002?

TARA-002 is being developed by Protara Therapeutics, Inc., a company traded on the stock exchange under the ticker TARA. The company is conducting clinical trials to evaluate the therapy's safety and efficacy.

What phase is TARA-002 in?

TARA-002 is in Phase 3 clinical development for non-muscle invasive bladder cancer. It is also being studied in Phase 2 trials for lymphatic malformations and in additional Phase 2 trials for bladder cancer. The therapy is investigational and not yet approved.

What clinical trials is TARA-002 in?

TARA-002 is being evaluated in several trials, including NCT07480356, a Phase 3 study comparing it to intravesical chemotherapy in BCG-naive high-grade non-muscle invasive bladder cancer. Other trials include NCT05951179 and NCT05871970, both Phase 2 studies, and the completed Phase 1 trial NCT05085990.

Is TARA-002 the same as other names?

TARA-002 is the primary name for this investigational therapy. No alternative names have been reported for the drug in clinical trial registrations or company communications.