Table of contents
- Trial overview
- Study in metastatic castration resistant prostate cancer
- Study in selected solid tumors
- Study in septic shock
- Outcomes and endpoints
- What patients should know from the trial data
Trial overview
The trial data show three authorised interventional studies that include Hydrocortisone Acetate as part of the treatment plans.[1][2][3] These studies are in different phases: Phase 1, Phase 3, and Phase 4.[1][2][3]
The trials cover both cancer and critical care research, so the target populations are very different from one another.[1][2][3] The main study goals include safety, tolerability, and treatment effect measures such as cancer response and short-term survival.[1][2][3]
Study in metastatic castration resistant prostate cancer
NCT06353386 is a Phase 1 interventional study in people with metastatic castration resistant prostate cancer (mCRPC).[1] The study is authorised and has an enrollment of 311 participants.[1]
This study is called “Study of MK-5684-based Therapies in Advanced Prostate Cancer” and includes Hydrocortisone and other drugs in different treatment combinations.[1] The brief summary says the safety lead-in is used to evaluate safety and tolerability and to establish a recommended Phase 2 dose, often called RP2D, which means the dose plan chosen for later testing.[1]
The study also includes an efficacy phase, which is the part of a trial that looks at whether the treatment seems to help the disease.[1] In this study, the efficacy phase is used to evaluate safety and tolerability for each treatment arm and to estimate the prostate-specific antigen (PSA) response rate.[1]
Study in selected solid tumors
Trial 2024-519563-18-00 is a Phase 4 study in people with breast cancer, ovarian cancer, and endometrial cancer.[2] The study is authorised and plans to enroll 294 participants.[2]
The title says this is a clinical study of MK-5684 in people with certain solid tumors, and Hydrocortisone appears among the listed interventions.[2] The brief summary says the study compares MK-5684 to standard of care, which means the usual treatment used in practice.[2]
The main endpoint is progression-free survival (PFS) for all cohorts, using RECIST 1.1 and blinded independent central review.[2] RECIST 1.1 is a standard way to measure whether tumors grow, shrink, or stay the same, and blinded independent central review means experts review the results without knowing which treatment each person received.[2]
Study in septic shock
Trial 2025-524122-18-00 is a Phase 3 randomized, controlled study in people with septic shock.[3] The study is authorised and plans to enroll 360 participants.[3]
The brief summary says the study evaluates dexmedetomidine as an adjunctive treatment for refractory septic shock in mechanically ventilated patients compared with standard care.[3] Hydrocortisone is listed among the interventions in this study at 200 mg by intravenous injection.[3]
The primary outcome is vital status at 30 days after randomization, which means whether the participant is alive 30 days after being assigned to a study group.[3] This is a direct survival measure and is important in a severe illness like septic shock.[3]
Outcomes and endpoints
The prostate cancer study measures dose-limiting toxicities, adverse events, treatment stops due to adverse events, and PSA response rate.[1] These endpoints help researchers understand both safety and early signs of benefit.[1]
The solid tumor study measures progression-free survival across all cohorts.[2] This endpoint shows how long participants live without the cancer getting worse.[2]
The septic shock study measures 30-day vital status.[3] This endpoint helps show whether the treatment plan may affect short-term survival in a critical care setting.[3]
What patients should know from the trial data
Based on the trial data, Hydrocortisone Acetate is being studied in very different diseases, so the purpose of each trial is not the same.[1][2][3] In one study it is part of early cancer research, in another it is part of a larger cancer comparison study, and in the third it appears in a septic shock trial.[1][2][3]
The studies are all authorised, but they are not the same type of trial or the same phase.[1][2][3] People who may join each trial depend on the condition being studied, such as mCRPC, selected solid tumors, or septic shock.[1][2][3]



