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A Study of EP0031 (Lunbotinib) in Patients With Advanced RET-altered Malignancies

A Modular, Open-label, Phase I/II Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of EP0031 in Patients With Advanced RET-altered Malignancies

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05443126
Enrollment
265
Registered
2022-07-05
Start date
2022-09-30
Completion date
2028-03-01
Last updated
2026-07-01

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

Conditions

NSCLC

Keywords

selective RET-inhibitor, NSCLC, RET, EP0031, A400, Chemotherapy, lunbotinib

Brief summary

The aim of this study is to assess the safety, side effects and effectiveness of EP0031 (Lunbotinib) in patients with advanced RET-altered non-small cell lung cancer (NSCLC) in monotherapy and in combination with standard of care (SOC) chemotherapy.

Detailed description

EP0031 is being investigated in this modular, interventional Phase I/II dose escalation and dose expansion study to investigate the optimal dose in adult patients with advanced RET-altered NSCLC. Currently there are no approved RET-targeted treatments for patients who progress on first-generation Selective RET Inhibitors (SRIs). However, it is proposed that EP0031 can overcome resistance mechanisms to first generation SRIs, as EP0031 is a potent and selective RET inhibitor with broad activity against common RET fusions and mutations. Phase I (dose escalation and optimization) has completed for this study and determined the Recommended Phase 2 Dose (RP2D). The study is now in Phase 2, assessing the safety, tolerability and efficacy of EP0031 given in combination with SOC chemotherapy in RET fusion positive NSCLC participants.

Interventions

DRUGEP0031

EP0031 is a potent next-generation selective RET-inhibitor (SRI)

One of either Cisplatin or Carboplatin. Both agents are potent platinum-based antineoplastic/alkylating agents administered as an IV infusion according to local practice and labels.

DRUGPemetrexed

Pemetrexed is a chemotherapy medication and antifolate metabolic inhibitor administered as an IV infusion according to local practice and labels.

Sponsors

Ellipses Pharma
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Applicable to all participants: 1. Must be ≥18 years of age, with documented RET-altered NSCLC 2. Participants should be well informed and consented about alternative treatment options including approved RET-targeted therapies 3. ECOG performance status of 0 or 1 and life expectancy \>3 months at screening 4. Ability to understand and provide written informed consent and able to participate in all required evaluations and procedures 5. Measurable disease defined by RECIST v1.1 6. Must have locally advanced or metastatic NSCLC with RET fusion who are eligible to receive platinum-based doublet chemotherapy. 7. First line patients: Must not have received a Selective RET inhibitor or chemotherapy. Prior adjuvant and neo-adjuvant therapies (chemotherapy, radiotherapy, immunotherapy, biologic therapy, investigational agents), or definitive radiation/chemoradiation with or without regimens including immunotherapy, biologic therapy, investigational agents, are permitted as long as treatment was completed at least 12 months prior. Palliative radiotherapy for symptom management (eg, bone metastases) is permitted up to 2 weeks prior to treatment start.

Exclusion criteria

Participants with any of the following will not be included in the study: 1. Any known major driver gene alterations other than RET. 2. Spinal cord compression or brain metastases. Patients with stable brain metastases can be enrolled. 3. Active infection requiring systemic antibiotic, antifungal, or antiviral medication 4. Severe or uncontrolled medical condition or psychiatric condition 5. Chronic glomerulonephritis or renal transplant 6. Participants with active hepatitis B infection or active hepatitis C 7. Participants with active HIV infection. Patients living with HIV may be eligible if they have adequate CD4+ T-cell count and no history of AIDS-defining opportunistic infections in the past 12 months 8. Receipt of any strong inhibitor or inducer of CYP3A4 9. Impaired hepatic or renal function, inadequate bone marrow reserve or organ function 10. Any clinically important abnormalities in rhythm, conduction, or morphology on resting ECG or any factor that increases the risk of QTc prolongation or of arrhythmic events , or congestive heart failure Grade III-IV according to the New York Heart Association, myocardial infarction, or unstable angina within the previous 6 months 11. Uncontrolled hypertension 12. Corneal ulceration or untreated keratitis at screening

Design outcomes

Primary

MeasureTime frame
Module B: Incidence of Dose-limiting Toxicity (DLTs ) during the first 21 days of EP0031 given in combination with SOC chemotherapy treatmentFirst 21 days of treatment

Secondary

MeasureTime frameDescription
Module B: Overall Response Rate (ORR) as measured using RECIST v1.112 months
Area under the plasma concentration versus time curve (AUC)First 24 hours after drug administeredTo characterise the pharmacokinetics (PK) of EP0031
Maximum Plasma Concentration (Cmax)First 24 hours after drug administeredTo characterise the pharmacokinetics (PK) of EP0031
Time taken for drug concentration to fall from half its original value (Half-life)First 24 hours after drug administeredTo characterise the pharmacokinetics (PK) of EP0031

Countries

France, Germany, Italy, Poland, Spain, United Arab Emirates, United Kingdom, United States

Contacts

CONTACTClinical Trials Team
Enquires@ellipses.life+44 20 3743 0992

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 2, 2026