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A Phase 1 Trial of ERX-315 in Participants With Advanced Solid Tumors

A First-in-Human, Phase 1 Safety, Tolerability, Pharmacokinetic, and Preliminary Efficacy Study of Escalating Doses of ERX-315 in Participants With Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06533332
Enrollment
36
Registered
2024-08-01
Start date
2024-10-14
Completion date
2027-06-30
Last updated
2026-05-29

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

Conditions

Advanced Solid Tumor, Metastatic Breast Cancer, Metastatic Endometrial Cancer, Metastatic Liver Cancer, Metastatic Ovarian Cancer, Metastatic Pancreatic Cancer

Brief summary

This is a Phase 1 study to assess the safety of ERX-315 in patients with advanced solid tumors that have failed approved systemic therapies.

Detailed description

The goal of this open-label, dose escalation and cohort expansion Phase 1 clinical trial is to determine the safety, tolerability and pharmacokinetics of ERX-315 in patients with advanced solid tumors, who have progressed on prior approved systemic therapies. Participants will receive ERX-315 as an intravenous (IV) injection twice a week, over 21-day cycles.

Interventions

DRUGERX-315

Drug administered intravenously twice a week at increasing dose levels, with starting dose of 0.4mg/kg.

Sponsors

EtiraRx Australia Pty Ltd
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients must be at least 18 years of age at the time of signing the informed consent. * Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1. * Patients must have histologically or cytologically confirmed solid tumor, primarily including but not limited to breast, ovarian, pancreatic, endometrial and hepatocellular carcinoma, that is advanced unresectable and/or metastatic disease for whom standard therapies do not exist or are no longer effective * Patients must have measurable disease as per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. * Adequate baseline organ function and hematologic function * Life expectancy \>3 months

Exclusion criteria

* Systemic anti cancer therapy within 4 weeks of first dose of study drug * Major surgery (as defined by the Investigator) within 4 weeks of first dose of study drug. * Uncontrolled intercurrent illnesses * Known history of LIPA deficiency, such as Wolman disease or Cholesterol ester storage disease.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Dose Limiting Toxicities of ERX-31521 daysFirst cycle dose limiting toxicities characterized by type, frequency, severity, timing, seriousness, and relationship to study drug
Incidence of Adverse Events as a measure of safety and tolerability of ERX-31584 daysAdverse events as characterized by type, frequency, severity (grade), timing, seriousness, and relationship to study drug.
Incidence of laboratory abnormalities as a measure of safety and tolerability of ERX-31584 daysLaboratory abnormalities as characterized by type, frequency, severity, and timing.
Determination of the recommended phase 2 dose84 daysTo determine the recommended phase 2 dose(s) for additional evaluation of ERX-315 in clinical trials for participants with advanced solid tumors

Secondary

MeasureTime frameDescription
Assessment of pharmacokinetic outcome measure of Area under the plasma concentration versus time curve (AUC).21 daysAUC will be determined by non-compartmental analysis and assessed after single and multiple doses of drug
Assessment of pharmacokinetic outcome measure of Peak Plasma concentration (Cmax)21 daysCmax will be determined by non-compartmental analysis and assessed after single and multiple doses of drug
Assessment of pharmacokinetic outcome measure of drug half-life (t1/2)21 dayst1/2 will be assessed after single and multiple doses of drug
Antitumor activity of ERX-315 based on Objective response rate (ORR)84 daysORR will be assessed by RECIST v1.1
Antitumor activity of ERX-315 based on Best Overall Clinical Response (BOCR)84 daysBOCR will be assessed by RECIST v1.1
Antitumor activity of ERX-315 based on Duration of response (DOR)84 daysDOR will be assessed by RECIST v1.1 and time frame of response
Antitumor activity of ERX-315 based on Progression-free survival (PFS)84 daysPFS will be assessed by RECIST v1.1 and time frame of response

Countries

Australia

Contacts

CONTACTResearch Director
contact@etira.life01 469 600 6603
PRINCIPAL_INVESTIGATORRasha Cosman, MBBS

The Kinghorn Cancer Centre

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 30, 2026