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LNTH-2401

Phase 2

Prostate Cancer | Small molecule | Other |Lantheus Holdings, Inc.|Last Updated: Sep 21, 2026

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment408

FDA Designations

No designations recorded

Clinical trial landscape

LNTH-2401 · 1 trial · 1 indication

Phase 2 1
NCT07831824Dose Optimization and Diagnostic Performance in Prostate Cancer (SPARROW [Staging Prostate Cancer With Advanced RM2 Radiotracer Oncologic Workup])Prostate Cancer
RECRUITING408 Analytics
PHASE2RECRUITING
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 252 trials

Recent Changes (Last 90 Days)

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