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ADCT-901

Phase 1

Advanced Solid Tumors | Small molecule | Oncology |ADC Therapeutics SA|Last Updated: May 22, 2025

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
CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment30
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04972981A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Antitumor Activity of ADCT-901 in Participants With Selected Advanced Solid TumorsPHASE1 COMPLETED 30Sep 9, 2021Sep 13, 2024May 22, 202513 United States, Spain +1
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Study Endpoints
Primary Endpoints
Safety and Tolerability as Assessed by Number of Participants with Adverse Events (AEs)
Up to approximately 2.5 years

Adverse events (AEs) and serious adverse events (SAEs) were defined as any untoward medical occurrence in participants whether or not considered related to the investigational medicinal product. Any clinically significant changes in vital signs, laboratory values, 12-lead electrocardiogram (ECG) and Eastern Cooperative Oncology Group (ECOG) performance status results will be recorded as AEs and SAEs.

Number of Participants Who Experience a Dose Limiting Toxicity (DLT) During the Dose-Escalation Phase
Day 1 to Day 21
Number of Participants Who Experience a Dose Interruption
Up to approximately 2.5 years
Number of Participants Who Experience a Dose Reduction
Up to approximately 2.5 years
Secondary Endpoints
Overall Response Rate (ORR)
Up to approximately 2.5 years
Duration of Response (DOR)
Up to approximately 2.5 years
Progression-Free Survival (PFS)
Up to approximately 2.5 years
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Part 1: Dose EscalationEXPERIMENTALIn Part 1 (dose escalation) participants with selected advanced solid tumors will receive escalating doses of ADCT-901 as monotherapy. Participants can receive ADCT-901 until disease progression, adverse event (AE), or other discontinuation criteria, whichever occurs first.
Part 2: Dose ExpansionEXPERIMENTALIn Part 2 (dose expansion), participants will receive ADCT-901 monotherapy at the dose identified as the RP2D/MTD in Part 1 (dose escalation). Participants will be split into two groups: Group 1: An indication for which ADCT-901 showed in Part 1 to have preliminary activity. Group 2: A group of participants with Part 1 indications, except for the one selected in Group 1 of Part 2. No more than 30% of participants with the same indication are allowed in this basket group. Participants can receive ADCT-901 until disease progression, AE, or other discontinuation criteria, whichever occurs first.
Interventions
NameTypeDescription
ADCT-901DRUGIntravenous infusion
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites13

Inclusion Criteria: 1. Pathologic diagnosis of selected solid tumor malignancy that is locally advanced or metastatic at time of Screening: cholangiocarcinoma, ovarian/fallopian tube cancers, prostate cancer, renal cell carcinoma, and triple negative breast cancer (TNBC). Note: Histologic varia...

Countries:United StatesSpainUnited Kingdom
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