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Apalutamide

Phase 2

Castration-resistant Prostate Cancer | Small molecule | Oncology |Kairos Pharma, Ltd.|Last Updated: Feb 2, 2026

Target and mechanism

Molecular targetAR
Target classAntagonist
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment100

FDA Designations

No designations recorded

Clinical trial landscape

Apalutamide · 1 trial · 1 indication

Phase 2 1
NCT05534646Study of Apalutamide With Carotuximab in Metastatic, Castration-Resistant Prostate CancerCastration-resistant Prostate Cancer
RECRUITING100 Analytics
PHASE2RECRUITING
Study of Apalutamide With Carotuximab in Metastatic, Castration-Resistant Prostate Cancer
Castration-resistant Prostate CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Progression free survival (rPFS) between patients receiving apalutamide and apalutamide + carotuximab
From the start of study treatment until documented progression, or death due to any cause, up to 30 days of follow-up after end of treatment.

From the start of study treatment until documented progression, per Response Evaluation Criteria in Solid Tumors (RECIST 1.1) and Prostate Cancer Working Group 3, or death due to any cause.

Secondary Endpoints

Incidence of Adverse events (grade 3 or higher) related to carotuximab and apalutamide
From start of study treatment through 4 weeks on treatment
Overall radiographic response rate (ORR) of the combination of apalutamide + carotuximab
From the start of combination study treatment until documented progression, or death due to any cause, up to 30 days of follow-up after end of treatment.
Proportion of patients resistant to apalutamide benefit from the addition of carotuximab
From the start of combination therapy study treatment until documented progression, or death due to any cause, up to 30 days of follow-up after end of treatment.
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Apalutamide monotherapyACTIVE_COMPARATORAfter progression, subjects will crossover to combination therapy
Combination therapy (Apalutamide + Carotuximab)EXPERIMENTAL -

Interventions

NameTypeDescription
ApalutamideDRUGStandard of care Apalutamide 240 mg administered orally and daily on Days 1-28 of every 28 day cycle
CarotuximabDRUGCarotuximab administered intravenously at the following doses: Cycle 1 Day 1: 3 mg/kg Cycle 1 Day 4: 7 mg/kg Cycle 1 Day 8: 10 mg/kg Cycle 1 Day 15: 10 mg/kg Cycle 1 Day 22: 10 mg/kg Cycle 2 Day 1: 15 mg/kg Cycle 2 Day 15: 15 mg/kg Cycle 3+ Day 1: 15 mg/kg After completion of cycle 2, dosing of carotuximab will continue at a q4 week schedule using the 15 mg/kg dose.
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Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites3

Inclusion Criteria: * History of castration-resistant prostate cancer with rising PSA (prostate-specific antigen) on a contemporary ARSI (Androgen receptor (AR) signaling inhibitor: abiraterone, enzalutamide, darolutamide). Bicalutamide, nilutamide, and flutamide will not be considered as contempor...

Countries:United States
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Frequently asked questions about Apalutamide

What is Apalutamide used for?

Apalutamide is used for castration-resistant prostate cancer, specifically in a Phase 2 study for metastatic, castration-resistant prostate cancer. It is an investigational small molecule being studied in combination with carotuximab in this patient population.

What does Apalutamide target?

Apalutamide is an androgen receptor inhibitor. It works by blocking the androgen receptor, which is involved in the growth of prostate cancer cells. This mechanism is being studied in the context of metastatic, castration-resistant prostate cancer.

Who makes Apalutamide?

Apalutamide is being developed by Kairos Pharma, Ltd., a company traded under the ticker KAPA. The company is conducting a Phase 2 clinical trial of apalutamide in combination with carotuximab for metastatic, castration-resistant prostate cancer.

What phase is Apalutamide in?

Apalutamide is in Phase 2 clinical development. It is currently being studied in a Phase 2 trial for metastatic, castration-resistant prostate cancer. The drug is investigational and has not been approved by regulatory authorities for this use.

What clinical trials is Apalutamide in?

Apalutamide is being studied in a Phase 2 clinical trial with the identifier NCT05534646. The trial is titled 'Study of Apalutamide With Carotuximab in Metastatic, Castration-Resistant Prostate Cancer' and is currently recruiting participants in the United States.

Is Apalutamide the same as Erleada?

Apalutamide is also known by the brand name Erleada. In the context of this development program, Kairos Pharma is studying apalutamide in combination with carotuximab for metastatic, castration-resistant prostate cancer.