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Monoclonal Antibodies

MCLA-158 for Solid Cancers

Phase 1 & 2
Recruiting
Research Sponsored by Merus N.V.
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Histologically or cytologically confirmed solid tumors with evidence of metastatic or locally advanced disease not amenable to standard therapy with curative intent
Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
Must not have
Any systemic anticancer therapy within 4 weeks or 5 half-lives whichever is longer of the first dose of study treatment
Major surgery or radiotherapy within 3 weeks of the first dose of study treatment
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 6-12 months
Awards & highlights
No Placebo-Only Group

Summary

This trial is testing a new drug called MCLA-158 to see if it can help treat certain cancers by blocking a protein that helps cancer cells grow. It focuses on patients with cancers that rely on this protein, like colorectal and head and neck cancers.

Who is the study for?
This trial is for adults with advanced solid tumors like lung, stomach, colorectal cancers that can't be cured by standard treatments. They must have a fresh tumor sample available and measurable disease. Good physical condition (ECOG 0 or 1) and proper organ function are required. Exclusions include recent major surgery, heart issues, other malignancies within 3 years, active infections, or uncontrolled medical conditions.
What is being tested?
The study tests MCLA-158 in patients with metastatic colorectal cancer (mCRC) and other solid tumors dependent on EGFR inhibition. It's an open-label trial to determine the safest dose of MCLA-158 that also works best (RP2D). The study will evaluate safety, how the body processes the drug (PK/PD), immune response to it (immunogenicity), and its effectiveness against tumors.
What are the potential side effects?
While specific side effects for MCLA-158 aren't listed here as it's early in testing, similar drugs often cause reactions at injection sites, flu-like symptoms such as fever and chills, fatigue, nausea or diarrhea. There may also be risks of allergic reactions or effects on liver function which will be closely monitored.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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My cancer has spread and cannot be cured with standard treatments.
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I am fully active or restricted in physically strenuous activity but can do light work.
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I can provide a recent tumor sample from the primary or metastatic site.
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My cancer in the head, neck, stomach, or gastroesophageal junction is EGFR positive.
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I can undergo a biopsy.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
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I haven't had cancer treatment in the last 4 weeks or longer.
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I haven't had major surgery or radiotherapy in the last 3 weeks.
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I have serious heart issues, but not atrial fibrillation or sudden fast heartbeats.
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I am currently taking medication to suppress my immune system.
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I have active hepatitis B and am not on antiviral treatment.
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I have a history of lung disease or signs of it on a chest scan.
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My liver disease is severe, and my cancer type is specific and aggressive.
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I have had a heart attack in the last 6 months.
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My brain metastases are either untreated, causing symptoms, or need treatment to manage symptoms.
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My cancer has spread to the lining of my brain and spinal cord.
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My blood pressure is high (>150/100 mmHg) despite treatment, or I have unstable chest pain.
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I need oxygen therapy all the time due to difficulty breathing.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~6-12 months
This trial's timeline: 3 weeks for screening, Varies for treatment, and 6-12 months for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Escalation: Number of patients with Dose Limiting Toxicities (DLTs) during Cycle 1
Expansion (Single agent, randomized expansion in 2/3L Head and Neck cancer and combination cohorts): Safety and tolerability: AEs and SAEs
Expansion (Single agent, randomized expansion in 2/3L Head and Neck cancer): Treatment discontinuations and dose modifications due to AEs
+3 more
Secondary study objectives
Escalation & Expansion (single agent - non-randomized and Combination cohorts): Treatment discontinuations and dose modifications due to AEs
Escalation & Expansion (single agent - non-randomized): Safety and tolerability: AEs and SAEs
Escalation & Expansion (single agent, non-randomized cohort): Cytokine Panel Expression Profile
+26 more
Other study objectives
Escalation & Expansion: Biomarkers for Wnt signaling proteins
Escalation & Expansion: Biomarkers for differential expression of mRNA
Escalation & Expansion: Biomarkers for differential expression of miRNA
+1 more

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

3Treatment groups
Experimental Treatment
Group I: MCLA-158 + PembrolizumabExperimental Treatment1 Intervention
MCLA-158 in combination with pembrolizumab will be explored first in head and neck squamous cell carcinoma patients eligible to receive pembrolizumab as first-line monotherapy.
Group II: MCLA-158 + FOLFIRI combination chemotherapyExperimental Treatment1 Intervention
MCLA-158 in combination with FOLFIRI combination will be explored first in metastatic colorectal cancer patients (mCRC) in the 2L setting.
Group III: MCLA-158Experimental Treatment1 Intervention
In Part 1, the dose escalation phase, patients with metastatic CRC will receive escalating doses of MCLA-158 (every 2 weeks) until MTD or RP2D is reached. Each Cycle is 28 days. Single agent treatment. In Part 2, the expansion phase, participants with metastatic CRC and certain other solid tumors will receive intravenous infusion of MCLA-158 at the recommended Phase II dose (RP2D) every 2 weeks, at Day 1 and Day 15. The duration of each treatment cycle is 28 days. In the expansion phase, 2 doses (1100 mg and 1500 mg) of MCLA-158 will be evaluated in a cohort of head and neck squamous cell carcinoma patients

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
The most common treatments for Non-Small Cell Lung Cancer (NSCLC) include targeted therapies, immunotherapies, and chemotherapy. Targeted therapies, such as EGFR inhibitors, work by blocking the epidermal growth factor receptor (EGFR) pathway, which is often overactive in NSCLC cells, leading to uncontrolled growth and proliferation. This is particularly relevant for patients with EGFR mutations, as these inhibitors can significantly slow disease progression. Immunotherapies, like PD-1/PD-L1 inhibitors, enhance the body's immune response against cancer cells. Chemotherapy, using drugs like pemetrexed and carboplatin, kills rapidly dividing cells, including cancer cells. Understanding these mechanisms helps tailor treatments to individual patients, improving outcomes and minimizing side effects.
New targeted treatments in lung cancer--overview of clinical trials.

Find a Location

Who is running the clinical trial?

Merus N.V.Lead Sponsor
9 Previous Clinical Trials
2,155 Total Patients Enrolled
Chiltern International Inc.Industry Sponsor
15 Previous Clinical Trials
7,353 Total Patients Enrolled
Q2 SolutionsIndustry Sponsor
14 Previous Clinical Trials
1,098 Total Patients Enrolled
Oncology Therapeutic Development (OTD)UNKNOWN
4ClinicsOTHER
Ernesto Wasserman, MDStudy DirectorMerus N.V.
3 Previous Clinical Trials
225 Total Patients Enrolled
Eduardo Pennella, MDStudy DirectorMerus N.V.
4 Previous Clinical Trials
972 Total Patients Enrolled

Media Library

MCLA-158 (Monoclonal Antibodies) Clinical Trial Eligibility Overview. Trial Name: NCT03526835 — Phase 1 & 2
Non-Small Cell Lung Cancer Research Study Groups: MCLA-158, MCLA-158 + Pembrolizumab, MCLA-158 + FOLFIRI combination chemotherapy
Non-Small Cell Lung Cancer Clinical Trial 2023: MCLA-158 Highlights & Side Effects. Trial Name: NCT03526835 — Phase 1 & 2
MCLA-158 (Monoclonal Antibodies) 2023 Treatment Timeline for Medical Study. Trial Name: NCT03526835 — Phase 1 & 2
~64 spots leftby Nov 2025