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A Trial of HRS-5041-103 to Evaluate the Safety, Tolerability, Pharmacokinetics and Efficacy of HRS-5041 in Subjects With Metastatic Castration-resistant Prostate Cancer

A Phase I, Open-label, Multi-Center, Non-Randomized Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Efficacy of HRS-5041 in Subjects With Metastatic Castration-resistant Prostate Cancer

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06830850
Enrollment
25
Registered
2025-02-17
Start date
2025-06-15
Completion date
2027-03-15
Last updated
2026-01-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Castration Resistant Prostate Cancer

Brief summary

To evaluate the Safety, Tolerability, Pharmacokinetics and Efficacy of 5041-103 in Subjects with Metastatic Castration-resistant Prostate Cancer.

Interventions

DRUGHRS-5041 Single dose of HRS-5041 orally administered

HRS-5041 Oral dosage (Tablet) Oral dosage administration, 28 days per cycle.

Sponsors

Atridia Pty Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

IInclusion Criteria 1. Ability to understand the trial procedures and possible adverse events, voluntarily participate in the trial. 2. Adequate bone marrow and other vital organ functions 3. Adequate liver function tests 4. Metastatic Castration-resistant Prostate Cancer

Exclusion criteria

1. Plan to receive any other anti-tumor therapy during the study. 2. Receipt of any chemotherapy, targeted therapy, immunotherapy, live/attenuated vaccination, radiotherapy or surgery within 4 weeks prior to the first dosing of this study. 3. Uncontrolled hypertension (systolic blood pressure \[SBP\] \> 150 mmHg and/or diastolic blood pressure \[DBP\] \> 100 mmHg with regular anti-hypertension therapy). 4. Factors that may affect the oral administration of the IP (swallow difficulty, chronic diarrhea, and bowel obstruction, etc.), or active gastrointestinal (GI) disease or other disease which may affect the absorption, distribution, metabolism, or elimination of IP. 5. Known history of drug allergies, specific allergies (such as asthma, urticaria, eczema, etc.). 6. Active heart disease within 6 months prior to the first dosing of this study. 7. Medical history of other malignant tumor within 5 years prior to dosing. 8. Positive hepatitis B virus (HBsAg), hepatitis B core antibody (HBcAb), hepatitis C virus (HCV-Ab), or syphilis or severe infections which need treatment.

Design outcomes

Primary

MeasureTime frameDescription
Incidence and severity of adverse events, ECOG PS score, vital signs (pulse rate, respiratory rate, blood pressure, body temperature), ECG, clinical chemistry, hematology, urinalysis and physical examinationScreening up to study completion, an average of 1 year.To evaluate the safety and tolerability profile of HRS-5041 in subjects with mCRPC.

Secondary

MeasureTime frameDescription
Cmax,ssFrom administration to C2, up to 4 months.Css, max are steady-state maximum concentrations of HRS-5041during multiple dosing, and are directly observed from data.
Cmin,ssFrom administration to C2, up to 4 months.Css, min are the steady-state trough concentrations of HRS-5041 during multiple dosing, and are directly observed from data
Objective Response Rate (ORR)Screening up to study completion, an average of 2 years.ORR refers to the proportion of subjects with a complete response (CR) or partial response (PR) based on all soft tissue assessments recorded from the date of first drug administration to either the date of radiographic disease progression (including bone progression and soft tissue progression), death from any cause, or the initiation of a new antitumor therapy, whichever occurs first. For subjects with CR or PR at the first evaluation, the efficacy should be confirmed 4 weeks later or at the next tumor imaging evaluation. The numerator includes subjects with a confirmed CR/PR at least 4 weeks after the initial assessment. The denominator consists of subjects with measurable target lesions at baseline.
Best of Response (DoR)Screening up to study completion, an average of 2 years.Best of Response (DoR) BOR refers to the best response of tumor evaluation, including CR, PR, stable disease (SD), progressive disease (PD), and not evaluable for response (NE).
Disease Control Rate (DCR)Screening up to study completion, an average of 2 years.Disease Control Rate (DCR) DCR refers to the time from the first occurrence of CR or PR to PD or death from any cause, whichever occurs first, in subjects with objective response. For subjects who have a confirmed CR or PR, DoR is calculated as the time from the date of first assessment confirming CR or PR to the date of first recorded radiographic disease progression or death from any cause, whichever occurs first. If the subject does not experience PD or death or is lost to follow-up at the end of study, DoR will be censored at the time of the last tumor evaluation.
ConcentrationScreening up to study completion,an average of 1 year.Plasma concentrations of HRS-5041 during multiple dosing, directly observed from data
PSA Response Rate at the end of Week 12Screening up to the end of Week 12 , up to 4 months.Refers to proportion of subjects with a ≥50% decline in serum PSA levels from baseline (PSA50) at the end of 12 weeks of study treatment.
Proportion of Subjects with PSA50 (≥ 50% decline in serum PSA from baseline)Screening up to the end of treatment, an average of 1 year.Refers to proportion of subjects with a ≥50% decline in serum PSA levels from baseline (PSA50) throughout the study treatment period.
Proportion of Subjects with PSA30 (≥ 30% decline in serum PSA from baseline)Screening up to the end of treatment, an average of 1 year.Refers to proportion of subjects with a ≥30% decline in serum PSA levels from baseline (PSA30) throughout the study treatment period.
Time to PSA ProgressionFrom the date of first drug administration to the date of first PSA progression, an average of 1 year.Refers to time from the date of first drug administration to the date of first PSA progression. PSA progression is determined based on PCWG3 criteria.
Overall Survival (OS)From the date of first drug administration to the date of death from any cause, an average of 2 year.OS refers to the time from the date of first drug administration to the date of death from any cause. From the date of first drug administration to the date of death from any cause.
rPFS (radiographic progression-free survivalScreening up to study completion, an average of 2 years.rPFS refers to the time from the first dose of investigational drug to the first radiographic PD or death from any cause (whichever occurs first) as assessed by the investigator. Radiographic disease progression includes both bone progression (based on PCWG3 criteria) and soft tissue progression (based on RECIST v1.1 criteria), with either type of progression counting as progression.

Countries

Australia

Contacts

Primary ContactKathy You
kathyyou@atridia.com+61 02 9299 0433
Backup ContactRavi Patel
ravi.patel@atridia.com+61 452 363 506

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026