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MNPR-101-PCTA-177Lu

Phase 1

Solid Tumor, Adult | Small molecule | Oncology |Monopar Therapeutics Inc.|Last Updated: Sep 3, 2026

Target and mechanism

Molecular targetuPAR
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment12

FDA Designations

No designations recorded

Clinical trial landscape

MNPR-101-PCTA-177Lu · 1 trial · 9 indications

Phase 1 1
NCT06617169Dose-Escalation of MNPR-101-PCTA-177Lu in Solid TumorsSolid Tumor, Adult
ACTIVE NOT_RECRUITING12 Analytics
PHASE1ACTIVE NOT_RECRUITING
Dose-Escalation of MNPR-101-PCTA-177Lu in Solid Tumors
Solid Tumor, AdultUnlock trial analytics

Study Endpoints

Primary Endpoints

Identify the dose-limiting toxicities (DLTs) of fractionated MNPR-101-PCTA-177Lu dosing and their frequency
For 6 weeks after the first dose

Dose-limiting toxicities (DLT) are at least possibly related to MNPR-101-PCTA-177Lu and occur within 6 weeks of C1D1. Participants experiencing a DLT will not receive any further doses. Participants will continue study participation through the 12-week post final dose Safety Visit.

Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] of fractionated MNPR-101-PCTA-177Lu dosing
From dosing to the End of Study at 24 weeks

The safety profile of MNPR-101-PCTA-177Lu will be determined through assessment of adverse event (AE) type, incidence, severity, time of appearance, and related causes (detected by physical explorations and laboratory tests). Adverse events will be graded and tabulated using NCI CTCAE v5.0.

Secondary Endpoints

Assessment radiologic response rate by RECIST 1.1
Every 6 weeks after initial dose
Assessment of radiologic response rate by PERCIST 1.0
At 12 weeks after first dose (End of Cycle 1) and at 12 weeks after final dose (Safety Visit)
Assess Radioactivity in whole blood and plasma following each fractionated MNPR-101-PCTA-177Lu dose
for 2 weeks after each dose
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Level 0 - MNPR-101-PCTA-177Lu 480 MBqEXPERIMENTAL -
Level 1 - MNPR-101-PCTA-177Lu 960 MBqEXPERIMENTAL -
Level 2 - MNPR-101-PCTA-177Lu 1440 MBqEXPERIMENTAL -
Level 3 - MNPR-101-PCTA-177Lu 1920 MBqEXPERIMENTAL -
Level 4 - MNPR-101-PCTA-177Lu 2240 MBqEXPERIMENTAL -

Interventions

NameTypeDescription
MNPR-101-PCTA-177LuDRUGMNPR-101-PCTA-177Lu administered intravenously over approximately 20 minutes, followed by a normal saline flush. Dosing will occur on Cycle 1 Day 1, Cycle 1 Day 15, and Cycle 2 Day 1.
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Eligibility Criteria

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

Inclusion Criteria: 1. Participated in the MNPR-101-D001 study. 2. Females of childbearing potential must have a negative serum pregnancy test at time of screening and a negative urine pregnancy test on Day 1 prior to study drug administration if screening is \>7 days prior to Day 1. A rapid serum ...

Countries:Australia
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Recent Changes (Last 90 Days)

MEDIUMSep 3, 2026NCT06617169Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMSep 3, 2026NCT06617169Status: RECRUITING → ACTIVE_NOT_RECRUITING

Frequently asked questions about MNPR-101-PCTA-177Lu

What is MNPR-101-PCTA-177Lu used for?

MNPR-101-PCTA-177Lu is an investigational small molecule being developed for the treatment of solid tumors in adults, including bladder cancer, urothelial carcinoma, triple-negative breast cancer, lung cancer, colorectal cancer, gastric cancer, ovarian cancer, and pancreatic cancer. It is currently in Phase 1 clinical development.

What does MNPR-101-PCTA-177Lu target?

MNPR-101-PCTA-177Lu targets uPAR, the urokinase plasminogen activator receptor. This receptor is involved in tumor progression and metastasis, making it a focus for cancer therapy. The drug is designed to deliver a therapeutic payload to uPAR-expressing tumors.

Who is developing MNPR-101-PCTA-177Lu?

MNPR-101-PCTA-177Lu is being developed by Monopar Therapeutics Inc., a biopharmaceutical company traded on NASDAQ under the ticker symbol MNPR. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with advanced solid tumors.

What phase is MNPR-101-PCTA-177Lu in?

MNPR-101-PCTA-177Lu is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The ongoing Phase 1 trial is a dose-escalation study designed to assess the safety, tolerability, and preliminary activity of the drug.

What clinical trials is MNPR-101-PCTA-177Lu in?

MNPR-101-PCTA-177Lu is being evaluated in a Phase 1 dose-escalation trial with the identifier NCT06617169. This active, non-recruiting study is enrolling 12 participants in Australia and includes patients with various solid tumors, such as bladder cancer, triple-negative breast cancer, and pancreatic cancer.

Is MNPR-101-PCTA-177Lu the same as MNPR-101?

MNPR-101-PCTA-177Lu is a specific formulation of the MNPR-101 platform, where the PCTA chelator is linked to the radioactive isotope lutetium-177. This conjugate is designed for targeted radiotherapy. The drug is distinct from other MNPR-101-based agents that may carry different payloads.