Evaluating VIR-5525 and its combination with Pembrolizumab for advanced solid tumors

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 1 clinical trial aims to assess the safety and preliminary efficacy of VIR-5525, both as a standalone treatment and in combination with pembrolizumab, for patients with locally advanced or metastatic solid tumors that express EGFR. The study is structured into four parts: dose escalation and expansion for VIR-5525 alone, and dose escalation and expansion for the combination therapy. Participants will be closely monitored for safety and anti-tumor activity throughout the trial. The study is designed to provide initial insights into the potential of VIR-5525 in treating these challenging malignancies.

Why it matters

Who can join: the full rules

Inclusion Criteria:

I 01. Are ≥ 18 years of age, or at the country's legal age of majority of the legal adult age is \>18 years, at the time of signing the ICF.

I 02. Have an ECOG performance status of 0 to 1.

I 03. Have a life expectancy of at least 12 weeks.

I 04. Have histological, pathological, or cytological confirmation of disease type that is unresectable, locally advanced, or metastatic.

I 05. Have measurable disease per RECIST v1.1 as assessed by the local site investigator/radiology. Lesions situated in a previously irradiated area are considered measurable if progression has been demonstrated in such lesions.

I 06. Have diseases under study, lines of therapy, and biomarker status, as follows:

Have one of the following:

• (Parts 1 and 3): NSCLC (nonsquamous or squamous histology), CRC, HNSCC, or CSCC.

Note: Participants with nasopharyngeal tumors are eligible. Note: Participants with upper esophageal or salivary gland tumors are not eligible.

OR

• Have a solid tumor with EGFR amplification (as previously determined locally with an analytically validated assay in a certified testing laboratory).

Have no available standard systemic therapy; or standard therapy is intolerable, not effective, or not accessible; or participant has refused standard therapy.

Exclusion Criteria:

E 01. Are a WOCBP with a positive serum or urine pregnancy test within 72 hours prior to treatment.

E 02. Have acute or chronic infections, including the following:

* Acute or chronic active Epstein-Barr virus (EBV) infection (Exception: asymptomatic EBV-positive participants are still eligible)
* Chronic active EBV disease defined as a chronic illness lasting at least 6 months, an increased EBV level in either the tissue or the blood, and lack of evidence of a known underlying immunodeficiency
* History of hepatitis B infection (defined as hepatitis B surface antigen \[HBsAg\] reactive) or known active hepatitis C virus (HCV) infection (defined as HCV \[HCV RNA; qualitative\] is detected)
* History of HIV infection. No HIV testing is required unless mandated by the local health authority.
* Active infection requiring systemic therapy within 14 days of Cycle 1 Day 1
* Known positive COVID-19 test result at screening (Exception: If follow-up test is negative, participants may be eligible if asymptomatic and upon consultation with medical monitor)

E 03. Have a concomitant medical or inflammatory condition that may increase the risk of toxicity to VIR-5525 or pembrolizumab, per the investigator

E 04. Have a QT interval corrected by Fridericia's method (QTcF) that is \>480 ms

E 05. Have received prior systemic anti-cancer therapy, including investigational agents, within 5 half-lives prior to first dose of study intervention. For drugs with a long t1/2, such as mAbs, or for drugs for which the t1/2 is not known, the last dose should not have been within 28 days prior to first dose of study intervention.

Note: If the participant has had major surgery, the participant must have recovered adequately from the procedure and/or any complications from the surgery prior to starting study intervention.

E 06. Have received prior radiotherapy within 2 weeks of start of study intervention Note: Participants must have recovered from all radiation-related toxicities to Grade ≤1 or baseline, must not require corticosteroids, and must not have had radiation pneumonitis.

Exception: External beam radiotherapy, including palliative external radiation, is allowed.

A 1-week washout is permitted for palliative radiation (≤2 weeks of radiotherapy) to non-CNS disease.

The above information is not intended to contain all considerations relevant to the potential participation in a clinical trial.

Where it's running

• Honor Health Research Institute
  Scottsdale, Arizona, United States Recruiting
• MD Anderson
  Houston, Texas, United States Recruiting
• Wollongong Hospital
  Wollongong, New South Wales, Australia Recruiting
• Princess Alexandra Hospital
  Woolloongabba, Queensland, Australia Recruiting

Study contacts

• Study coordinator: Study Inquiry
• Email: clinicaltrials@vir.bio
• Phone: 1-415-654-5281

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.