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Combination Therapy of RMC-4630 and LY3214996 in Metastatic KRAS Mutant Cancers

Phase I/Ib Study With the Combination of RMC-4630 (SHP2 Inhibitor) and LY3214996 (ERK Inhibitor) in Metastatic KRAS Mutant CRC, PDAC and NSCLC

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04916236
Acronym
SHERPA
Enrollment
24
Registered
2021-06-07
Start date
2022-03-31
Completion date
2024-07-30
Last updated
2025-01-24

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

Conditions

Pancreatic Cancer, Colorectal Cancer, Non-small Cell Lung Cancer, KRAS Mutation-Related Tumors

Keywords

SHP2, ERK, Combination therapy, KRAS mutation-related tumors

Brief summary

This is a Phase I/Ib study in which the safety of the combination therapy of RMC-4630 and LY3214996 in the treatment of KRAS mutant cancers will be studied.

Detailed description

This is a phase I / Ib study in which the safety of the combination therapy of RMC-4630 and LY3214996 in the treatment of KRAS mutant cancers colorectal cancer (CRC), non-small cell lung cancer (NSCLC) and pancreatic ductal adenocarcinoma will be studied. The phase I dose-escalation study is designed to identify the recommended phase 2 dose (RP2D) of the combination regimen of RMC-4630 (SHP2-inhibitor) plus LY3214996 (ERK-inhibitor) in patients with KRASm CRC, NSCLC or PDAC. The phase Ib expansion cohort is designed to further characterize the safety of the selected dose from the first stage of the study and to explore the clinical activity of RMC-4630 in combination with LY3214996 in patients with metastatic KRASm PDAC.

Interventions

* SHP2-inhibitor * Powder in capsule * Administered on day 1 and day 2 of every week

* ERK inhibitor * Powder in capsule * Administered every day

Sponsors

Lustgarten Foundation
CollaboratorOTHER
The Netherlands Cancer Institute
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Part A: Phase I study - Dose-escalation of RMC-4630 and LY3214996 combination to determine RP2D/MTD. Dose level will be escalated according to standard 3+3 design. Part B: Phase Ib study - To further characterize the safety, tolerability and PK/PD of the RP2D of the RMC-4630 and LY3214996 combination. Expansion cohort in which patients with KRASm PDAC will be treated with the RP2D found in Part A of the study.

Eligibility

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

Inclusion criteria

1. Part A: Histological or cytological proof of advanced KRASm NSCLC, CRC or PDAC; PART B: Histological or cytological proof of advanced KRASm PDAC. 2. Age =\> 18 years; 3. Able and willing to give written informed consent; 4. WHO performance status of 0 or 1 5. Able and willing to undergo blood sampling for PK and PD analysis; 6. Able and willing to undergo tumor biopsies prior to start (or have undergone a biopsy within 2 months of inclusion), while on study treatment and upon progression of disease; 7. Life expectancy =\> 3 months and no deterioration or hospitalizations within 2 weeks leading to C1D1, allowing adequate follow up of toxicity evaluation and antitumor activity; 8. Evaluable disease according to RECIST 1.1 criteria; (PART A and PART B); 9. Women of childbearing potential must have a negative serum pregnancy test within 14 days prior to registration and agree to use effective contraceptive methods, as defined in section 5.9.3, through-out the treatment period, and for 4 months after the study treatment 10. Adequate organ system function.

Exclusion criteria

1. Part A: No excluded genotypes Part B: Excluded genotypes (including co occurring mutations): * NRAS (except G12A/C) * RASQ61 * KRASG13 * BRAF Class 1, 2, or unclassified * PIK3CA * STK11 * KEAP1 2. Any treatment with investigational drugs within 30 days prior to receiving the first dose of investigational treatment; 3. Patients currently using concomitant medication that are strong inhibitors or inducers of CYP3A4; 4. History of another malignancy Exception PART A: Patients who have been disease-free for at least 3 years, or patients with a history of completely resected non-melanoma skin cancer and/or patients with indolent completely resected second malignancies are eligible. Exception PART B: Adequately treated carcinoma in situ of the cervix and adequately treated basal cell carcinoma of the skin. 5. Symptomatic or untreated leptomeningeal disease 6. Symptomatic brain metastasis. Patients previously treated or untreated for these conditions that are asymptomatic in the absence of corticosteroid and anticonvulsant therapy (for at least 4 weeks) are allowed to enroll. Radiotherapy for brain metastasis must have been completed at least 6 weeks prior to start of study treatment. Brain metastasis must be stable with verification by imaging (e.g. brain MRI or CT completed at screening demonstrating no current evidence of progressive brain metastases). Patients are not permitted to receive antiepileptic drugs or corticosteroids. 7. Patients who have had previous treatment with any targeted drug combination known to interfere RAS/MEK/MAPK pathway components. 8. Toxicities related to prior treatments \> grade 1 (excluding alopecia) 9. History of interstitial lung disease or pneumonitis 10. Woman who are breast feeding; 11. Patients who have undergone any major surgery within the last 4 weeks prior to starting study drug or who would not have fully recovered from previous surgery. 12. Radio- or chemotherapy within the last 4 weeks prior to receiving the first dose of investigational treatment; except a palliative dose of radiation of 8 Gy, which is allowed up to one week before study start and should not be applied to the target lesion. 13. Uncontrolled infectious disease or known Human Immunodeficiency Virus HIV-1 or HIV-2 type patients; 14. Patients with a known history of or uncontrolled hepatitis B (HBV) or C (HCV); 15. Patients with known alcoholism, drug addiction and/or psychiatric of physiological condition which in the opinion of the investigator would impair study compliance; 16. Patients with cardiac comorbidities (myocardial infarct within 6 months of study start, NYHA class ≥ III, congestive heart failure or instable angina pectoris), uncontrolled hypertension (systolic blood pressure \> 160 mm Hg and/or diastolic pressure \> 90 mm Hg), prolonged QT interval(\> 440 ms for men, \> 460 ms for women) or patients who have had a stroke within 6 months prior to start study. 17. Other severe, acute, or chronic medical or psychiatric condition, laboratory abnormality active infections that may increase the risk associated with study participation or study drug administration or that may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for the study. 18. Patients with pulmonary embolisms or deep venous thrombosis (DVT) within 3 months prior to start 19. Known hypersensitivity to one of the study drugs or excipients. 20. Baseline diarrhea and/or any condition that would impair absorption of oral agents 21. Patient with a history or findings of central or branch retinal artery or venous occlusion with significant vision loss or other retinal diseases that cause current visual impairment or would likely cause visual impairment over the time period of the study, as assessed by an ophthalmologist.

Design outcomes

Primary

MeasureTime frameDescription
Phase I - Maximum tolerated dose (MTD)Through study completion, an average of 2 yearMaximum Tolerated Dose (MTD) of the combination of RMC-4630 and LY3214996. Dose escalation will follow 3+3 design. The CTCAE criteria will be used to determine if adverse events and lab abnormalities will be accounted as dose limiting toxicity (DLT)
Phase Ib - Clinical activity of the RMC-4630 and LY3214996 combination in patients with KRASm PDACTumor assessed every 8 weeks through study completion, with an expected average of 4 treatment cycles (each cycle is 28 days)Response and progression evaluated using internationally accepted response criteria and definitions proposed by the RECIST criteria

Secondary

MeasureTime frameDescription
Elimination half-life of RMC-4630 and LY3214996 (T1/2)Prior to initial dose on day 1, day 15, and 0.5, 1, 2, 4, 8, 24 hours post dose.Blood samples are obtained and plasma concentrations of RMC-4630 and LY3214996 are measured using a validated LC-MS/MS method.
Total body clearance of RMC-4630 and LY3214996Prior to initial dose on day 1, day 15, and 0.5, 1, 2, 4, 8, 24 hours post dose.Blood samples are obtained and plasma concentrations of RMC-4630 and LY3214996 are measured using a validated LC-MS/MS method.
Volume of distribution of RMC-4630 and LY3214996Prior to initial dose on day 1, day 15, and 0.5, 1, 2, 4, 8, 24 hours post dose.Blood samples are obtained and plasma concentrations of RMC-4630 and LY3214996 are measured using a validated LC-MS/MS method.
Observed plasma concentrations of RMC-4630 and LY3214996Prior to initial dose on day 1, day 8, day 15, day 22 and 0.5, 1, 2, 4, 8, 24 hours post dose on day 1 and day 15.Blood samples are obtained and plasma concentrations of RMC-4630 and LY3214996 are measured using a validated LC-MS/MS method.
Pharmacodynamic biomarkers of RMC-4630 and LY3214996Before start of treatment, during treatment and (optional) after treatment discontinuation with RMC-4630 and LY3214996 with an expected average of 4 treatment cycles (each cycle is 28 days)To evaluate pharmacodynamic (PD) biomarkers of the RMC-4630- LY3214996 combination, the expression levels of relevant down-stream proteins are measured in tumor biopsies, using the Ampliseq SOCV1panel. Markers to be assessed include molecular status (mutation/amplification/expression) of markers related to the RAF/MEK/ERK and PI3K/AKT pathway (e.g. BRAF, HRAS, NRAS, KRAS, PIK3CA, PTEN, pS6-RP, c-MET, EGFR, HER-3, pERK, pAKT, pEGFR, and pRSK).
Potential mechanism of resistanceBefore start of treatment, during treatment and (optional) after treatment discontinuation with RMC-4630 and LY3214996 with an expected average of 4 treatment cycles (each cycle is 28 days)Potential mechanisms of are studied in tumor biopsies taken before treatment, during treatment and (optional) after treatment using the Ampliseq SOCV1panel
Baseline molecular status of potential predictive markers of tumor responseBefore start of treatment, during treatment and (optional) after treatment discontinuation with RMC-4630 and LY3214996 with an expected average of 4 treatment cycles (each cycle is 28 days)Baseline molecular status of potential predictive markers of tumor response wil be studied in tumor biopsies taken before treatment, during treatment and (optional) after treatment using the Ampliseq SOCV1panel
Area under de plasma - time concentration curve of RMC-4630 and LY3214996Prior to initial dose on day 1, day 15, and 0.5, 1, 2, 4, 8, 24 hours post dose.Blood samples are obtained and plasma concentrations of RMC-4630 and LY3214996 are measured using a validated LC-MS/MS method.

Countries

Netherlands

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026