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LNTH-2401

Phase 2/3

Prostate Cancer | Small Molecules | Oncology |Lantheus Holdings, Inc.|Trials Updated: Sep 21, 2026

LNTH-2401 target and mechanism

ModalitySmall Molecules

Also known as [68Ga]-LNTH-2401

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment408

FDA Designations

No designations recorded

LNTH-2401 clinical trials

LNTH-2401 · 1 trial · 1 indication

Phase 2/3 1
NCT07831824Dose Optimization and Diagnostic Performance in Prostate Cancer (SPARROW [Staging Prostate Cancer With Advanced RM2 Radiotracer Oncologic Workup])Prostate Cancer
RECRUITING408 Analytics
PHASE2/PHASE3RECRUITING
Dose Optimization and Diagnostic Performance in Prostate Cancer (SPARROW [Staging Prostate Cancer With Advanced RM2 Radiotracer Oncologic Workup])
Prostate CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Phase 2 Dose Optimization Period: Optimal administered activity (radioactivity) and imaging time window for [68Ga]-LNTH-2401 PET/CT based on image quality and interpretability in participants with either newly diagnosed or BCR PCa
Day 1

Image quality scores (IQS) for administered activity (radioactivity) for \[68Ga\]-LNTH-2401 PET/CT

Phase 2 Dose Optimization Period : Optimal administered activity (radioactivity) and imaging time window for [68Ga]-LNTH-2401 PET/CT based on image quality and interpretability in participants with either newly diagnosed or BCR PCa
Day 1

Image quality scores (IQS) for imaging time windows for \[68Ga\]-LNTH-2401 PET/CT

Phase 2 Dose Optimization Period :Biodistribution and radiation dosimetry of [68Ga]-LNTH-2401 in participants with either newly diagnosed or BCR PCa.
Day 1

Time activity curves (TACs), describing the percentage of the injected activity versus time will be derived for standard organs. Absorbed radiation doses of \[68Ga\]-LNTH-2401in standard organs; whole-body effective dose will also be estimated.

Safety and tolerability of [68Ga] LNTH 2401 in participants with either newly diagnosed or BCR PCa.
1 week (Ph2), 6 months (Ph3)

Frequency and severity of AEs per CTCAE version 6.0 for \[68Ga\]-LNTH-2401.

Phase 3 Diagnostic Performance Period- Diagnostic accuracy (sensitivity and specificity) of [68Ga]-LNTH-2401 PET/CT imaging for detecting prostate cancer in pelvic lymph nodes, compared to histopathology.
Enrollment through study completion, average 6 months

Co-primary endpoints of: Participant-level specificity (TN/\[TN + FP\]) of \[68Ga\]-LNTH-2401 PET/CT for detection of prostate cancer in pelvic lymph nodes relative to histopathology. Participant-level sensitivity (TP/\[TP + FN\]) of \[68Ga\]-LNTH-2401 PET/CT for detection of prostate cancer in pelvic lymph nodes relative to histopathology.

Secondary Endpoints

Phase 2 Dose Optimization Period- Refine the GRPR positivity definition
Day 1
Phase 3 Diagnostic Performance Period- Evaluation of the safety and tolerability of [68Ga]-LNTH-2401.
From Enrollment to End of treatment of Ph3
Phase 3 Diagnostic Performance Period- Determination of (true) detection rates of [68Ga]-LNTH-2401 and conventional imaging (CT/MRI of pelvis, ultrasound, bone scan) or PSMA PET/CT or PET/MRI among anatomic regions
From Enrollment to End of treatment of Ph3
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeDIAGNOSTIC

Treatment Arms

ArmTypeDescription
[68Ga]-LNTH-2401EXPERIMENTALPhase 2 period, \[68Ga\]-LNTH-2401 will be administered at 5 (±1) mCi (148 to 222 MBq). Phase 3 period, the intended commercial-use manufactured \[68Ga\]-LNTH 2401 product will be administered for imaging at the optimized dose selected from the Phase 2 period.

Interventions

NameTypeDescription
[68Ga]-LNTH-2401DRUG\[68Ga\]-LNTH-2401 will be administered to identify newly diagnosed prostate cancer.
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Eligibility Criteria

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

Inclusion Criteria: Participants must meet all of the criteria below as defined to be enrolled in the study. 1. Participants must be male and ≥18 years old or defined as adults per applicable local laws and regulations, at the time of signing the informed consent. 2. Participants who are sexually ...

Countries:United States
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Competitive Landscape -Prostate Cancer 428 trials

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Pfizer Inc.PFE13PHASE3Talazoparib, PF-06821497, enzalutamide, PF-07220060 CDK4 inhibitor, giredestrant
Merck & Co., Inc.MRK13PHASE3Ifinatamab Deruxtecan, Opevesostat, Olaparib, Pembrolizumab, Lenvatinib
Johnson & JohnsonJNJ25PHASE3Apalutamide, Niraparib, Abiraterone, Pasritamig, JNJ-87189401
Eli Lilly and CompanyLLY9PHASE3Abemaciclib, PNT2002, LY4101174, PSMA-62, LY4052031
Amgen Inc.AMGN7PHASE3Xaluritamig, AMG 509
Novartis AG Sponsored ADRNVS34PHASE3Lutetium Lu 177 Vipivotide Tetraxetan, Gallium Ga 68 Gozetotide, gallium gozetotide, AAA817, Luxdegalutamide
Bristol-Myers Squibb CompanyBMY4PHASE3BMS-986365, Nivolumab, BMS-986253, RYZ711, BMS-986460
Exelixis, Inc.EXEL6PHASE3Cabozantinib, Zanzalintinib
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GSK plc Sponsored ADRGSK3PHASE3Risvutatug rezetecan, GSK5471713, GSK5458514
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Telix Pharmaceuticals Limited Sponsored ADRTLX2PHASE368Ga-PSMA-11, 177Lu-TLX591
Regeneron Pharmaceuticals, Inc.REGN6PHASE2Cemiplimab, REGN21353, Nezastomig, Sarilumab Prophylaxis, REGN4336
Oric Pharmaceuticals, Inc.ORIC2PHASE3Rinzimetostat
Sanofi SA Sponsored ADRSNY2PHASE3Docetaxel, Cabazitaxel
Lantheus Holdings IncLNTH4PHASE3LNTH-2401
BayerBAYRY17PHASE3Darolutamide, Association of darolutamide and EBRT, BAY3546828
Celcuity Inc.CELC1PHASE2Gedatolisib
PMV Pharmaceuticals, Inc.PMVP1PHASE2rezatapopt
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Recent Changes (Last 90 Days)

LOWSep 21, 2026NCT07831824NEW_TRIAL: changed
LOWSep 21, 2026NCT07831824NEW_TRIAL: changed

Frequently asked questions about LNTH-2401

What is LNTH-2401?

LNTH-2401 is an investigational small molecule imaging agent being developed for prostate cancer. It is also known as [68Ga]-LNTH-2401. Lantheus Holdings, Inc. is running a Phase 2/3 study of the agent in prostate cancer staging and diagnostic performance, with enrollment of 408 participants.

What is LNTH-2401 used for in prostate cancer?

LNTH-2401 is being studied for use in prostate cancer, specifically in staging and diagnostic workup. Its Phase 2/3 trial, called SPARROW (Staging Prostate Cancer With Advanced RM2 Radiotracer Oncologic Workup), evaluates dose optimization and diagnostic performance in men with prostate cancer.

Who makes LNTH-2401?

LNTH-2401 is being developed by Lantheus Holdings, Inc., which trades under the ticker LNTH. Lantheus is the sponsor of the SPARROW trial evaluating the agent in prostate cancer.

What phase is LNTH-2401 in?

LNTH-2401 is in Phase 2/3 clinical development. It is investigational and is being evaluated in a single recruiting study, the SPARROW trial, which has an estimated enrollment of 408 participants.

What clinical trials is LNTH-2401 in?

LNTH-2401 is being studied in the SPARROW trial, registered as NCT07831824. The Phase 2/3 study is recruiting men aged 18 years and older with prostate cancer in the United States. It is an uncontrolled trial with an estimated enrollment of 408 participants and focuses on dose optimization and diagnostic performance.

Is LNTH-2401 the same as [68Ga]-LNTH-2401?

Yes, [68Ga]-LNTH-2401 is another name for LNTH-2401. The two names refer to the same Lantheus Holdings investigational agent being studied in prostate cancer under the SPARROW Phase 2/3 trial, NCT07831824.