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indibulin

Phase 1

Advanced Cancer | Small molecule | Oncology |Alaunos Therapeutics, Inc.|Trials Updated: Sep 30, 2026

indibulin development status

Highest phase Phase 1
Registered trials 6 across 1 sponsor since Jan 2008

indibulin target and mechanism

Molecular targetTUBB4B, TUBB1, TUBA3C, TUBA4A, TUBB3, TUBA1A
Target classInhibitor
ModalitySmall molecule

Also known as ZIO-301

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials4
Total Enrollment99

FDA Designations

No designations recorded

indibulin clinical trials

indibulin · 4 trials · 3 indications

Phase 1 4
NCT00591383Phase I Study of Indibulin in Combination With Erlotinib in Advanced Solid TumorsAdvanced Solid Tumors
COMPLETED10 Analytics
NCT00591890Phase IB Study of Indibulin Using Positron-Emission Tomography (PET) ScansAdvanced Cancer
COMPLETED20 Analytics
NCT00591292Phase I Study in Advanced Solid TumorsSolid Tumors
COMPLETED22 Analytics
NCT00591136Phase I Study of Indibulin in Patients With Solid TumorsSolid Tumors
COMPLETED47 Analytics
PHASE1COMPLETED
Phase I Study of Indibulin in Combination With Erlotinib in Advanced Solid Tumors
Advanced Solid TumorsUnlock trial analytics
PHASE1COMPLETED
Phase IB Study of Indibulin Using Positron-Emission Tomography (PET) Scans
Advanced CancerUnlock trial analytics
PHASE1COMPLETED
Phase I Study in Advanced Solid Tumors
Solid TumorsUnlock trial analytics
PHASE1COMPLETED
Phase I Study of Indibulin in Patients With Solid Tumors
Solid TumorsUnlock trial analytics

Study Endpoints

Primary Endpoints

toxicities
6 months
anti-tumor effect on PET Scan
7 weeks

Secondary Endpoints

pharmacokinetics
6 months
toxicities
6 months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Single ArmEXPERIMENTALOnce Maximum Tolerated Dose (MTD) is determined an expanded cohort will be enrolled to evaluate efficacy.

Interventions

NameTypeDescription
indibulinDRUGindibulin, dose escalation, 200 mg - 600 mg. Taken twice every day.
erlotinibDRUGerlotinib taken at 150 mg every morning with food.
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Eligibility Criteria

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

Inclusion Criteria: 1. Subjects with advanced, histologically confirmed solid tumors for which no standard therapy exists and for whom treatment with erlotinib is considered medically acceptable. 2. ≥18 years of age 3. ECOG performance score ≤2 4. Eligible subjects MUST have at least one measurable...

Countries:United StatesNetherlands
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Competitive Landscape -Cancer 7 trials (matched to "Advanced Cancer")

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Frequently asked questions about indibulin

What is indibulin used for?

Indibulin is an investigational small molecule being studied for the treatment of advanced cancer, advanced solid tumors, and solid tumors. It has been evaluated in Phase 1 clinical trials in adults with these conditions. It is not an approved therapy and remains in clinical development.

What does indibulin target?

Indibulin is a tubulin inhibitor that targets tubulin proteins, specifically TUBB4B, TUBB1, TUBA3C, TUBA4A, TUBB3, and TUBA1A. By binding these targets, it interferes with microtubule function in cancer cells. This mechanism underlies its investigation as an oncology therapeutic.

Who is developing indibulin?

Indibulin is being developed by Alaunos Therapeutics, Inc., which trades under the ticker TCRT. The company is the sponsor associated with the clinical development of this small molecule oncology candidate.

What phase is indibulin in?

Indibulin is in Phase 1 clinical development. It is investigational and has not been approved by the FDA. All reported trials of indibulin were Phase 1 studies, and no active trials are currently listed.

What clinical trials is indibulin in?

Indibulin has been studied in Phase 1 trials including NCT00591890, which used PET scans in advanced cancer; NCT00591383, combining indibulin with erlotinib in advanced solid tumors; NCT00591292 in advanced solid tumors; and NCT00591136 in patients with solid tumors. All are completed.

How many patients have been enrolled in indibulin trials?

Across the reported indibulin clinical trials, total enrollment is 69 patients. The studies were Phase 1, uncontrolled, and non-randomized, conducted in the United States and the Netherlands in adults with advanced cancer or solid tumors.