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Pb-PSV359

Phase 1

Pancreatic Ductal Adenocarcinoma | Small molecule | Oncology |Perspective Therapeutics, Inc.|Last Updated: Jul 6, 2026

Target and mechanism

ModalitySmall molecule

Also known as [203Pb]Pb-PSV359

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment112

FDA Designations

No designations recorded

Clinical trial landscape

Pb-PSV359 · 1 trial · 8 indications

Phase 1 1
NCT06710756Lead-212 PSV359 Therapy for Patients With Solid TumorsPancreatic Ductal Adenocarcinoma
RECRUITING112 Analytics
PHASE1RECRUITING
Lead-212 PSV359 Therapy for Patients With Solid Tumors
Pancreatic Ductal AdenocarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Determination of safety and tolerability of [203Pb]Pb-PSV359
30 days (±1day) post dose

Incidence and severity of treatment-related adverse events following a single administration of \[203Pb\]Pb-PSV359 is determined

Determination of safety and tolerability of [212Pb]Pb-PSV359
Up to 3 years

Incidence and severity of treatment-related adverse events following a single and each repeated administration of \[212Pb\]Pb-PSV359 is determined

To determine the recommended phase 2 dose of [212Pb]Pb-PSV359
Up to approximately 6 months

The recommended phase 2 dose as determined by cohort observations and review by the Safety Monitoring Committee

Secondary Endpoints

Determination of duration of response following treatment with [212Pb]Pb-PSV359
Up to 3 years
Determination of progression free survival following treatment with [212Pb]Pb-PSV359
Up to 3 years
Determination of pharmacokinetic properties of [203Pb]Pb-PSV359 and [212Pb]Pb-PSV359
Up to approximately 3 yrs
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Dose EscalationEXPERIMENTAL* Enrolled subjects are administered \[203Pb\]Pb-PSV359 (7mCi) for imaging FAP-expressing cancers. * Approximately Four cohorts of \[212Pb\]Pb-PSV359 dose levels will be explored for determining Recommended Phase 2 Dose (RP2D). Study subjects will be assigned to cohorts sequentially.
Dose ExpansionEXPERIMENTAL* Enrolled subjects are administered \[203Pb\]Pb-PSV359 (7mCi) for imaging FAP-expressing cancers. * Enrolled subjects are administered \[212Pb\]Pb-PSV359 (RP2D determined previously) for treatment of FAP-expressing cancers

Interventions

NameTypeDescription
[203Pb]Pb-PSV359DRUG\[203Pb\]Pb-PSV359 is administered by intravenous bolus injection for single-photon emission computed tomography imaging.
[212Pb]Pb-PSV359DRUG\[212Pb\]Pb-PSV359 is administered by intravenous infusion for treatment of FAP expressing cancers.
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Eligibility Criteria

Age Range18 Years to 90 Years
SexALL
Healthy VolunteersNo
Study Sites11

Inclusion Criteria: * Aged ≥ 18 years * Satisfactory organ function as determined by laboratory testing * Eastern Cooperative Oncology Group performance (ECOG) status of 0 to 1 * Life expectancy \> 3 months * Progressive disease despite standard therapy or for whom no standard therapy exists * Posi...

Countries:United States
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Recent Changes (Last 90 Days)

LOWJul 6, 2026NCT06710756lastUpdatePostDate: changed
LOWJul 6, 2026NCT06710756lastUpdatePostDate: changed

Frequently asked questions about Pb-PSV359

What is Pb-PSV359 used for?

Pb-PSV359 is an investigational small molecule being developed for the treatment of pancreatic ductal adenocarcinoma, as well as other solid tumors including gastric, esophageal, colorectal, ovarian, head and neck cancers, sarcoma, and mesothelioma. It is currently in Phase 1 clinical development.

What does Pb-PSV359 target?

Pb-PSV359 is a small molecule that delivers lead-212, a radioactive isotope, to tumor cells. It is designed to target solid tumors and is being studied for its therapeutic effects in multiple cancer types, including pancreatic ductal adenocarcinoma.

Who makes Pb-PSV359?

Pb-PSV359 is being developed by Perspective Therapeutics, Inc., a company traded on the NYSE American under the ticker symbol CATX. The company is conducting clinical trials to evaluate the safety and efficacy of this investigational therapy.

What phase is Pb-PSV359 in?

Pb-PSV359 is in Phase 1 clinical development. It is an investigational drug that has not yet been approved by regulatory authorities. The ongoing Phase 1 trial is recruiting participants to assess its safety, dosing, and preliminary efficacy in patients with solid tumors.

What clinical trials is Pb-PSV359 in?

Pb-PSV359 is being studied in a Phase 1 clinical trial with the identifier NCT06710756. This trial, titled 'Lead-212 PSV359 Therapy for Patients With Solid Tumors,' is recruiting participants in the United States and has a target enrollment of 112 patients.

Is Pb-PSV359 the same as [203Pb]Pb-PSV359?

Yes, Pb-PSV359 is also known as [203Pb]Pb-PSV359. The compound is being investigated for its therapeutic potential in solid tumors, and the alternative name reflects the lead-203 isotope used in imaging or diagnostic applications of the same molecule.