Recent Updates
Recently added Catalysts

JNJ-101556143

Phase 1

Metastatic Prostate Cancer | Small molecule | Oncology |Johnson & Johnson|Last Updated: Aug 31, 2026

Target and mechanism

ModalitySmall molecule

Also known as JNJ-101556143 Formulation 1, JNJ-101556143 Formulation 2, JNJ-101556143 Formulation 3

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment190

FDA Designations

No designations recorded

Clinical trial landscape

JNJ-101556143 · 1 trial · 1 indication

Phase 1 1
NCT06800313Study of HLD-0915 (JNJ-101556143) in Patients With Metastatic Prostate CancerMetastatic Prostate Cancer
RECRUITING190 Analytics
PHASE1RECRUITING
Study of HLD-0915 (JNJ-101556143) in Patients With Metastatic Prostate Cancer
Metastatic Prostate CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Frequency of dose-limiting toxicities (DLTs)
21 days
Frequency and severity of AEs and abnormal ECG, laboratory and clinical changes since baseline
21 days
Phase 1 Part 2 (formulation exploration) relative bioavailability
22 days

Secondary Endpoints

PK Parameters
21 days
Change in PSA over time
21 days
Objective Response Rate (ORR)
63 days
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
JNJ-101556143 Phase 1 Part 1 - Dose EscalationEXPERIMENTALTreatment cycle consists of 21 days. Treatment may continue until disease progression or study discontinuation (withdrawal of consent, intercurrent illness, unacceptable adverse event or any other changes unacceptable for further treatment, etc.)
JNJ-101556143 Phase 1 Part 2 - Formulation ExplorationEXPERIMENTALTreatment cycle consists of 21 days. Treatment may continue until disease progression or study discontinuation (withdrawal of consent, intercurrent illness, unacceptable adverse event or any other changes unacceptable for further treatment, etc.)
JNJ-101556143 Phase 2 Part 1 - Dose OptimizationEXPERIMENTALTreatment cycle consists of 21 days. Treatment may continue until disease progression or study discontinuation (withdrawal of consent, intercurrent illness, unacceptable adverse event or any other changes unacceptable for further treatment, etc.)
Phase 2 Part 2A - SOAREXPERIMENTALTreatment cycle consists of 21 days. Treatment may continue until disease progression or study discontinuation (withdrawal of consent, intercurrent illness, unacceptable adverse event or any other changes unacceptable for further treatment, etc.)
Phase 2 Part 2B - HSPC ExpansionEXPERIMENTALTreatment cycle consists of 21 days. Treatment may continue until disease progression or study discontinuation (withdrawal of consent, intercurrent illness, unacceptable adverse event or any other changes unacceptable for further treatment, etc.)
Phase 2 Part 2C - HSPC ExpansionEXPERIMENTALTreatment cycle consists of 21 days. Treatment may continue until disease progression or study discontinuation (withdrawal of consent, intercurrent illness, unacceptable adverse event or any other changes unacceptable for further treatment, etc.)
Phase 2 Part 2D - HSPC ExpansionEXPERIMENTALTreatment cycle consists of 21 days. Treatment may continue until disease progression or study discontinuation (withdrawal of consent, intercurrent illness, unacceptable adverse event or any other changes unacceptable for further treatment, etc.)

Interventions

NameTypeDescription
JNJ-101556143 Formulation 1DRUGExperimental: Oral JNJ-101556143
JNJ-101556143 Formulation 2DRUGExperimental: Oral JNJ-101556143
JNJ-101556143 Formulation 3DRUGExperimental: Oral JNJ-101556143
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites18

Patients must meet the following criteria to be eligible study participation: Key Inclusion Criteria: All Study Arms (Phase 1 Part 1 \& 2, Phase 2 Part 1, Part 2A, 2B, 2C \& 2D): Males ≥ 18 years old Histological, pathological, and/or cytological confirmation of prostate adenocarcinoma Adequate h...

Countries:United StatesUnited Kingdom
Unlock Eligibility Criteria

Competitive Landscape -Prostate Cancer 252 trials (matched to "Metastatic Prostate Cancer")

Recent Changes (Last 90 Days)

LOWAug 31, 2026NCT06800313lastUpdatePostDate: changed
LOWAug 31, 2026NCT06800313lastUpdatePostDate: changed
MEDIUMAug 20, 2026NCT06800313primaryCompletionDate: changed
MEDIUMAug 20, 2026NCT06800313primaryCompletionDate: changed