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TARA-002

Phase 3

Bladder (Urothelial, Transitional Cell) Cancer | Small molecule | Oncology |Protara Therapeutics, Inc.|Last Updated: Jun 30, 2026

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 Sites6

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 StatesUkraineArgentinaBrazilCanadaJapanMoldovaRomania
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Recent Changes (Last 90 Days)

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
MEDIUMMay 26, 2026NCT05951179primaryCompletionDate: changed
MEDIUMMay 26, 2026NCT05871970primaryCompletionDate: changed
LOWMay 26, 2026NCT07480356primaryCompletionDate: changed
LOWMay 24, 2026NCT05951179studyFirstPostDate: changed
LOWMay 24, 2026NCT05871970studyFirstPostDate: changed
LOWMay 24, 2026NCT07480356studyFirstPostDate: changed

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 high-grade disease and carcinoma in situ, and for lymphatic malformations in pediatric patients. It is administered by intravesical instillation for bladder cancer and intracystic injection for lymphatic malformations.

Who is developing TARA-002?

TARA-002 is being developed by Protara Therapeutics, Inc., a biopharmaceutical company traded on the stock exchange under the ticker TARA. The company is conducting clinical trials of TARA-002 in both oncology and lymphatic malformation indications.

What phase is TARA-002 in?

TARA-002 is in Phase 3 clinical development for BCG-naive high-grade non-muscle invasive bladder cancer. It has completed Phase 1 trials in non-muscle invasive bladder cancer and is in a Phase 2 trial for lymphatic malformations. It is an investigational drug and not yet approved.

What clinical trials is TARA-002 in?

TARA-002 is being studied in several trials. NCT07480356 is a Phase 3 trial comparing intravesical TARA-002 to investigator's choice chemotherapy in BCG-naive high-grade non-muscle invasive bladder cancer. NCT05871970 is a Phase 2 trial of intracystic TARA-002 for lymphatic malformations in patients aged 6 months to under 18 years. Two Phase 1 trials, NCT05085977 and NCT05085990, have been completed.

What FDA designations has TARA-002 received?

TARA-002 has received Breakthrough Therapy, Fast Track, Orphan Drug, and Rare Pediatric Disease designations from the U.S. Food and Drug Administration. These designations are intended to expedite the development and review of the drug for its studied indications.

Is TARA-002 the same as other treatments for bladder cancer?

TARA-002 is a distinct investigational therapy being developed by Protara Therapeutics. It is being studied as a potential treatment for non-muscle invasive bladder cancer, particularly in patients who have not received BCG therapy, and is compared against standard intravesical chemotherapy in its Phase 3 trial.