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MNPR-101-DFO*-89Zr

Phase 1

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

Success Probability

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Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment12

FDA Designations

No designations recorded

Clinical trial landscape

MNPR-101-DFO*-89Zr · 1 trial · 9 indications

Phase 1 1
NCT06337084Diagnostic Efficacy and Dosimetry of MNPR-101-DFO*-89Zr in Patients With Solid TumorsSolid Tumor, Adult
ACTIVE NOT_RECRUITING12 Analytics
PHASE1ACTIVE NOT_RECRUITING
Diagnostic Efficacy and Dosimetry of MNPR-101-DFO*-89Zr in Patients With Solid Tumors
Solid Tumor, AdultUnlock trial analytics

Study Endpoints

Primary Endpoints

To assess dosimetry and biodistribution of MNPR-101-DFO*-89Zr
Post infusion at 2 h on Day 1, once on Days 3-5, and once on Days 7-10.

The biodistribution of MNPR-101-DFO\*-89Zr is assessed via PET/CT imaging scans, particularly of target safety organs (e.g., liver, kidney, red marrow, and lungs). Dosimetry is calculated using OLINDA/EXM or a similar software.

To assess tumor Standard Uptake Value (SUV) of MNPR-101-DFO*-89Zr
Post infusion at 2 h on Day 1, once on Days 3-5, and once on Days 7-10.

Tumor SUV is measured via PET/CT imaging by calculating the amount of radiotracer uptake in identified tumors. SUV mean, max, and peak of the tumors will be summarized at each timepoint per subject. Tumor SUV will be analyzed between subjects with the same cancer type as well as between cancer types.

To assess safety of MNPR-101-DFO*-89Zr as assessed by CTCAE 5.0
Screening through Day 30 Safety Visit.

The safety profile of MNPR-101-DFO\*-89Zr 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

To assess pharmacokinetics (PK) of MNPR-101-DFO*-89Zr via well or gamma counter
Post infusion at 10 min, 1 h and 2 h on Day 1, once on Days 3-5, and once on Days 7-10.
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeDIAGNOSTIC

Treatment Arms

ArmTypeDescription
MNPR-101-DFO*-89Zr Single Infusion and PET/CT ImagingEXPERIMENTALParticipants receive a single injection of MNPR-101-DFO\*-89Zr on Day 1 with administered activity between 37-74 MBq (or 1-2 mCi). PET/CT imaging will occur post-infusion at 2 h (Day 1), once on Days 3-5, and once on Days 7-10.

Interventions

NameTypeDescription
MNPR-101-DFO*-89ZrDRUGParticipants will receive one dose of MNPR-101-DFO\*-89Zr infused intravenously on Day 1 for PET scans
PET/CT Diagnostic ImagingDIAGNOSTIC_TESTPET/CT imaging will occur post-infusion at 2 h (Day 1), once on Days 3-5, and once on Days 7-10 for tumor lesion observation.
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Eligibility Criteria

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

Inclusion Criteria: 1. Histologically and/or cytologically confirmed solid tumor cancer. 2. Age ≥18 years. 3. Measurable disease ≥ 1 cm on prior 18F-FDG PET/CT scan. Up to 4 subjects may be enrolled with FDG-avid disease which do not meet ≥ 1 cm measurement on CT. 4. Ability to understand and willi...

Countries:Australia
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Recent Changes (Last 90 Days)

MEDIUMSep 3, 2026NCT06337084Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMSep 3, 2026NCT06337084Status: RECRUITING → ACTIVE_NOT_RECRUITING

Frequently asked questions about MNPR-101-DFO*-89Zr

What is MNPR-101-DFO*-89Zr used for?

MNPR-101-DFO*-89Zr is an investigational diagnostic agent being studied for use in adults with solid tumors, 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.

Who is developing MNPR-101-DFO*-89Zr?

MNPR-101-DFO*-89Zr is being developed by Monopar Therapeutics Inc., a biopharmaceutical company traded on the stock exchange under the ticker symbol MNPR. The company is conducting clinical research on this agent in patients with solid tumors.

What phase is MNPR-101-DFO*-89Zr in?

MNPR-101-DFO*-89Zr is in Phase 1 clinical development. It is an investigational agent and has not been approved by regulatory authorities. The ongoing Phase 1 trial is active but not recruiting participants.

What clinical trials is MNPR-101-DFO*-89Zr in?

MNPR-101-DFO*-89Zr is being evaluated in a Phase 1 clinical trial registered as NCT06337084. The trial is titled "Diagnostic Efficacy and Dosimetry of MNPR-101-DFO*-89Zr in Patients With Solid Tumors" and is being conducted in Australia with an enrollment of 12 participants.

What is the mechanism of action of MNPR-101-DFO*-89Zr?

MNPR-101-DFO*-89Zr is a small molecule diagnostic agent. Its specific molecular target has not been disclosed in available information. The agent is being studied for its diagnostic efficacy and dosimetry in patients with various solid tumors.