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Ac-A9-3408

Phase 1

Melanoma Metastatic | Small molecule | Oncology |BrainsWay Ltd.|Last Updated: Mar 16, 2026

Target and mechanism

ModalitySmall molecule

Also known as [225Ac]Ac-A9-3408

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment50

FDA Designations

No designations recorded

Clinical trial landscape

Ac-A9-3408 · 1 trial · 3 indications

Phase 1 1
NCT07076550A Phase 1-1b Study to Evaluate the Safety, Efficacy and Dosimetry of Study Drug A9-3408 in Subjects With Metastatic MelanomaMelanoma Metastatic
RECRUITING50 Analytics
PHASE1RECRUITING
A Phase 1-1b Study to Evaluate the Safety, Efficacy and Dosimetry of Study Drug A9-3408 in Subjects With Metastatic Melanoma
Melanoma MetastaticUnlock trial analytics

Study Endpoints

Primary Endpoints

Determine max tolerated dose and recommended Phase 2 Dose
First 28 days following first study treatment

Rate of DLTs per dose level/cohort

Incidence of treatment-related adverse events
From first study treatment until end of treatment

Rate and severity of suspected treatment-related adverse events, change from baseline laboratory values and change from baseline vital signs as graded by CTCAE version 5.0

Secondary Endpoints

Evaluate the preliminary efficacy of [225Ac]Ac-A9-3408 by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1)
Up to 1 year from enrollment
Evaluate biodistribution and normal organ dosimetry of [225Ac]Ac-A9-3408
Up to 7 days following each cycle (42 days)
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Phase 1 Dose EscalationEXPERIMENTALParticipants enrolled in Dose Escalation will receive a single dose of the investigational diagnostic agent \[68Ga\]Ga-A9T-3202 during screening, and receive the investigational treatment \[225Ac\]Ac-A9-3408 once every 6 weeks, for up to 6 total cycles.
Phase 1B Dose ExpansionEXPERIMENTALParticipants enrolled in Dose Expansion will receive a single dose of the investigational diagnostic agent \[68Ga\]Ga-A9T-3202 during screening, and receive the investigational treatment \[225Ac\]Ac-A9-3408 once every 6 weeks, for up to 6 total cycles.

Interventions

NameTypeDescription
[225Ac]Ac-A9-3408DRUGAdministered IV
[68Ga]Ga-A9T-3202DIAGNOSTIC_TESTAdministered IV
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: * Able to provide written informed consent * \[68Ga\]Ga-A9T-3202 uptake in at least one measurable lesion (per RECIST v1.1) on PET scan * Histologically or cytologically confirmed unresectable or metastatic melanoma with disease progression on prior standard of care therapy * Ad...

Countries:Australia
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Frequently asked questions about Ac-A9-3408

What is Ac-A9-3408 used for?

Ac-A9-3408 is an investigational small molecule being developed for the treatment of metastatic melanoma, including uveal melanoma and mucosal melanoma. It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities.

What does Ac-A9-3408 target?

Ac-A9-3408 is a radiopharmaceutical that incorporates the radioisotope actinium-225. It is designed to deliver targeted radiation to cancer cells, though its specific molecular target has not been disclosed.

Who is developing Ac-A9-3408?

Ac-A9-3408 is being developed by BrainsWay Ltd., a company traded on the stock exchange under the ticker BWAY. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with metastatic melanoma.

What phase is Ac-A9-3408 in?

Ac-A9-3408 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by the FDA or other regulatory agencies. The ongoing Phase 1 trial is recruiting participants to assess safety, efficacy, and dosimetry.

What clinical trials is Ac-A9-3408 in?

Ac-A9-3408 is being studied in a Phase 1-1b clinical trial with the identifier NCT07076550. This trial is recruiting 50 participants in Australia and is evaluating the drug in patients with metastatic melanoma, including uveal and mucosal melanoma. The study is currently recruiting.

Is Ac-A9-3408 the same as [225Ac]Ac-A9-3408?

Yes, Ac-A9-3408 is also known as [225Ac]Ac-A9-3408. Both names refer to the same investigational drug, which incorporates the radioactive isotope actinium-225. This alternative name is used in scientific and clinical contexts to specify the radiolabeled form of the compound.