Recent Updates
Recently added Catalysts

TRX518 monotherapy

Phase 1

Solid Tumors | Small molecule | Oncology |Cypherpunk Technologies Inc.|Trials Updated: Aug 3, 2025

TRX518 monotherapy development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Dec 2015

TRX518 monotherapy target and mechanism

ModalitySmall molecule

Also known as TRX518

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLED
Total Trials2
Total Enrollment119

FDA Designations

No designations recorded

TRX518 monotherapy clinical trials

TRX518 monotherapy · 2 trials · 2 indications

Phase 1 2
NCT02628574Phase 1 Open-label Study of TRX518 Monotherapy and TRX518 in Combination With Gemcitabine, Pembrolizumab, or NivolumabSolid Tumors
COMPLETED109 Analytics
NCT01239134Trial of TRX518 (Anti-GITR mAb) in Stage III or IV Malignant Melanoma or Other Solid TumorsUnresectable Stage III or Stage IV Malignant Melanoma or Other Solid Tumor Malignancies
COMPLETED10 Analytics
PHASE1COMPLETED
Phase 1 Open-label Study of TRX518 Monotherapy and TRX518 in Combination With Gemcitabine, Pembrolizumab, or Nivolumab
Solid TumorsUnlock trial analytics
PHASE1COMPLETED
Trial of TRX518 (Anti-GITR mAb) in Stage III or IV Malignant Melanoma or Other Solid Tumors
Unresectable Stage III or Stage IV Malignant Melanoma or Other Solid Tumor MalignanciesUnlock trial analytics

Study Endpoints

Primary Endpoints

Adverse events
through 30 days post last dose

Any adverse change in health or side effect from the initiation of the study drug dose TRX518 monotherapy and TRX518 in combination with gemcitabine, pembrolizumab or nivolumab through completion or premature withdrawal

Part A: Adverse Events
through 30 days post last dose

Any adverse change in health or side effect from the initiation of the study drug dose through completion or premature withdrawal

Part A: TRX518 peak concentration (Cmax)
various timepoints through 1 week post dose

Observations of the distribution, duration of effects and chemical changes of TRX518 in the body and the effects and routes of the body's elimination of TRX518

Part A: Time to peak concentration (Tmax)
various timepoints through 1 week post dose

Observations of the distribution, duration of effects and chemical changes of TRX518 in the body and the effects and routes of the body's elimination of TRX518

Part A: Area under the curve (AUC)
various timepoints through 1 week post dose

Observations of the distribution, duration of effects and chemical changes of TRX518 in the body and the effects and routes of the body's elimination of TRX518

Part A: Define a maximum single dose at which there are tolerable side effects and/or maximum PK/PcD parameter changes
End of Cycle 1 (Day 28)
Parts B and C: Adverse Events
through 30 days post dose

Any adverse change in health or side effect from the initiation of the study drug dose through completion or premature withdrawal

Secondary Endpoints

TRX518 peak concentration (Cmax)
various timepoints through 1 week post dose
Time to peak concentration (Tmax)
various timepoints through 1 week post dose
Area under the curve (AUC)
various timepoints through 1 week post dose
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
TRX518 monotherapy (Parts A and B)EXPERIMENTALSubjects receive an assigned dose of TRX518 administered intravenously one time per week or one time per cycle on a 21-day cycle
TRX518 with gemcitabine (Part C)EXPERIMENTALSubjects receive an assigned dose of TRX518 (dosed one time per cycle) intravenously administered in combination with gemcitabine (dosed two times per cycle) on a 21-day cycle
TRX518 with pembrolizumab (Part DEXPERIMENTALSubjects receive an assigned dose of TRX518 (dosed one time per cycle) intravenously administered in combination with pembrolizumab (dosed one time per cycle) on a 21-day cycle
TRX518 with nivolumab (Part E)EXPERIMENTALSubjects receive an assigned dose of TRX518 (dosed two times per cycle) intravenously administered in combination with nivolumab (dosed two times per cycle) on a 28-day cycle
TRX518EXPERIMENTAL -

Interventions

NameTypeDescription
TRX518 monotherapyDRUGcomparison of different (ascending) doses of TRX518 monotherapy
TRX518 with gemcitabineDRUGcomparison of different (ascending) doses of TRX518 in combination with gemcitabine
TRX518 with pembrolizumabDRUGcomparison of different (ascending) doses of TRX518 in combination with pembrolizumab
TRX518 with nivolumabDRUGcomparison of different (ascending) doses of TRX518 in combination with nivolumab
TRX518BIOLOGICALHumanized, Fc disabled, anti-human GITR (glucocorticoid-induced tumor necrosis factor receptor) monoclonal antibody
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites6

Inclusion Criteria: * Advanced Solid Malignancies: Histologically documented metastatic or locally advanced, incurable solid malignancy (Parts A and B); histologically documented metastatic or locally advanced, incurable solid malignancy for which gemcitabine is clinically appropriate (e.g., non-sm...

Countries:United States
Unlock Eligibility Criteria

Competitive Landscape -Other Solid Tumors 10 trials (matched to "Solid Tumors")

Frequently asked questions about TRX518 monotherapy

What is TRX518 used for?

TRX518 is an investigational cancer therapy studied in adults with solid tumors, including unresectable Stage III or Stage IV malignant melanoma and other solid tumor malignancies. It has been evaluated as a monotherapy and in combination with gemcitabine, pembrolizumab, or nivolumab in Phase 1 clinical research.

Who is developing TRX518?

TRX518 is being developed by Cypherpunk Technologies Inc., which trades under the ticker CYPH. The company has sponsored Phase 1 clinical research of TRX518 in patients with advanced solid tumors, including melanoma, in the United States.

What phase is TRX518 in?

TRX518 is in Phase 1 clinical development. It is investigational and has not been approved by the FDA. Two Phase 1 studies have been completed, including NCT02628574, which enrolled 109 patients, and NCT01239134, which enrolled 10 patients.

What clinical trials is TRX518 in?

TRX518 has been studied in two completed Phase 1 trials. NCT02628574 evaluated TRX518 monotherapy and TRX518 combined with gemcitabine, pembrolizumab, or nivolumab in 109 patients with solid tumors. NCT01239134 evaluated TRX518 in 10 patients with Stage III or Stage IV malignant melanoma or other solid tumors.

Is TRX518 the same as TRX518 monotherapy?

Yes, TRX518 monotherapy refers to TRX518 given as a single agent, without combination therapy. The same drug has also been studied in combination with gemcitabine, pembrolizumab, or nivolumab in the Phase 1 trial NCT02628574.