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darinaparsin

Phase 2

Advanced Solid Tumors | Small molecule | Oncology |Alaunos Therapeutics, Inc.|Trials Updated: Sep 29, 2026

darinaparsin development status

Highest phase Phase 2 (NCT00421213)
Phase scored for TCRTPhase 1
Registered trials 4 across 1 sponsor since Jan 2007

darinaparsin target and mechanism

ModalitySmall molecule

Also known as ZIO-101-C, S-dimethylarsino-glutathione, Zinapar (TM)

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials3
Total Enrollment55

FDA Designations

No designations recorded

darinaparsin clinical trials

darinaparsin · 3 trials · 3 indications

Phase 1 3
NCT01139346Study of Oral Darinaparsin in Patients With Advanced Solid TumorsAdvanced Solid Tumors
COMPLETED12 Analytics
NCT00592163Phase I Study of Oral ZIO-101-C in Advanced Solid Tumors and LymphomasAdvanced Solid Tumors
COMPLETED20 Analytics
NCT00591422Phase I Study of Oral Darinaparsin (ZIO-101-C)in Advanced Solid Tumors and Non-Hodgkin's LymphomasAdvanced Cancer
COMPLETED23 Analytics
PHASE1COMPLETED
Study of Oral Darinaparsin in Patients With Advanced Solid Tumors
Advanced Solid TumorsUnlock trial analytics
PHASE1COMPLETED
Phase I Study of Oral ZIO-101-C in Advanced Solid Tumors and Lymphomas
Advanced Solid TumorsUnlock trial analytics
PHASE1COMPLETED
Phase I Study of Oral Darinaparsin (ZIO-101-C)in Advanced Solid Tumors and Non-Hodgkin's Lymphomas
Advanced CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Determine Toxicity Profile
One Year

a primary outcome measure is to determine the toxicity profile of oral darinaparsin when given continuously for 21 days followed by a 7 day rest period per cycle

Determine Maximum Tolerated Dose
One Year

a primary outcome measure is to determine the maximum tolerated dose of oral darinaparsin when given continuously for 21 days followed by a 7 day rest period per cycle

Determine the preliminary activity/efficacy
One Year

a primary outcome measure is to determine the preliminary activity/efficacy of oral darinaparsin when given continuously for 21 days followed by a 7 day rest period per cycle

Determine Pharmacokinetic profile
One Year

a primary outcome measure is to determine the pharmacokinetic profile of oral darinaparsin when given continuously for 21 days followed by a 7 day rest period per cycle

toxicities
6 months

Secondary Endpoints

pharmacokinetics
6 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
oral darinaparsinEXPERIMENTALopen label, single arm, dose escalation
Single ArmEXPERIMENTAL -

Interventions

NameTypeDescription
darinaparsinDRUGdose escalating, starting at 200 mg twice per day for 21 days continuous followed by a 7 day rest per cycle.
ZIO-101-C (Darinaparsin)DRUGDose Escalation study, 200 mg - 900 mg, cumulative daily dose split to be taken BID 7 times a week (\>8 hours between doses) for 3 weeks followed by 1 week of rest
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites3

Inclusion Criteria: * Subjects with histological or cytological confirmation of advanced cancer (solid tumor) that is refractory to standard therapies for their condition; * Men and women of ≥18 years of age; * ECOG performance score ≤2 * Eligible subjects with solid tumors MUST have at least one m...

Countries:United StatesCanada
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Competitive Landscape -Other Solid Tumors 10 trials (matched to "Advanced Solid Tumors")

Frequently asked questions about darinaparsin

What is darinaparsin used for?

Darinaparsin is an investigational small molecule being studied for the treatment of advanced solid tumors. It has been evaluated in a Phase 1 clinical trial in adult patients with advanced solid tumors. It is not approved for commercial use and remains in clinical development.

Who is developing darinaparsin?

Darinaparsin is being developed by Alaunos Therapeutics, Inc., which trades under the ticker TCRT. The company sponsored the clinical evaluation of the drug in advanced solid tumors.

What phase is darinaparsin in?

Darinaparsin is in Phase 1 clinical development. One Phase 1 trial has been completed, and no active trials are currently listed. The drug is investigational and has not been approved by the FDA.

What clinical trials is darinaparsin in?

Darinaparsin has been studied in one completed Phase 1 trial, NCT01139346, titled Study of Oral Darinaparsin in Patients With Advanced Solid Tumors. The trial enrolled 12 adult patients in the United States and evaluated oral darinaparsin in advanced solid tumors.

Is darinaparsin FDA approved?

No, darinaparsin is not FDA approved. It is an investigational small molecule that has completed a Phase 1 trial in advanced solid tumors. It remains in clinical development and is not available for commercial use.