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PRT3645

Phase 1

Breast Cancer | Small molecule | Oncology |Prelude Therapeutics Incorporated|Last Updated: Jul 1, 2024

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment22
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05538572A Study of PRT3645 in Participants With Select Advanced or Metastatic Solid TumorsPHASE1 COMPLETED 22Dec 27, 2022Jun 26, 2024Jul 1, 202413 United States, Singapore
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Study Endpoints
Primary Endpoints
Dose limiting toxicity (DLT) of PRT3645
Baseline through Day 28

Dose limiting toxicity will be evaluated over the 28-day observation period

Safety and tolerability of PRT3645: AEs, CTCAE Assessments
Baseline through approximately 2 years

Safety and tolerability will be evaluated by incidence of DLTs, laboratory measurements, severity of adverse events (AEs) according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v5.0.

Maximally tolerated dose (MTD)/Recommended phase 2 dose (RP2D) of PRT3645
Baseline through approximately 2 years

The MTD/RP2D will be established for further investigation in participants with advanced solid tumors

Secondary Endpoints
Efficacy of PRT3645: Tumor assessment and responses
Baseline through approximately 2 years
Pharmacokinetic profile of PRT3645: Minimum and maximum observed plasma concentration
Baseline through approximately 2 years
Pharmacodynamic effect of PRT3645: Target engagement
Baseline through approximately 2 years
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PRT3645EXPERIMENTALPRT3645 capsules will be self-administered once daily, continuously, at the dose-level assigned
Interventions
NameTypeDescription
PRT3645DRUGPRT3645 capsules will be self-administered once daily, continuously, at the dose-level assigned
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites13

Inclusion Criteria: * Histologically confirmed advanced, recurrent, or metastatic solid tumor malignancy that have either progress or ineligible for standard of care therapy: 1. HR+ and HER2- or HR+ and HER2+ breast cancer 2. Recurrent GBM (IDH wild type) or CDKN2A/B homozygous deleted IDH-mut...

Countries:United StatesSingapore
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