Evaluating the safety of IPH4502 in patients with advanced solid tumors

A Phase 1, Open-label, Multi-center Study of the Safety, Tolerability, and Efficacy of IPH4502 as a Single Agent in Advanced Solid Tumors

Phase 1 Interventional Innate Pharma · NCT06781983

This study is testing a new drug called IPH4502 to see if it's safe and effective for people with advanced solid tumors that express a specific protein.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment145 (estimated)
Ages18 Years and up
SexAll
SponsorInnate Pharma Industry-sponsored
Locations7 sites (Boston, Massachusetts and 6 other locations)
Trial IDNCT06781983 on ClinicalTrials.gov

What this trial studies

This is a first-in-human, open-label, multicenter Phase 1 study designed to assess the safety, tolerability, and preliminary efficacy of IPH4502 in patients with advanced solid tumors expressing Nectin-4. The study employs a dose escalation approach guided by a Bayesian optimal interval design, followed by dose optimization in selected indications. Participants will receive escalating doses of IPH4502, and the study aims to determine the recommended Phase 2 dose while monitoring pharmacokinetics and safety.

Who should consider this trial

Good fit: Ideal candidates include patients with unresectable, locally advanced or metastatic solid tumors that express Nectin-4 and have not benefited from prior systemic treatments.

Not a fit: Patients with known or suspected brain metastases or those with significant comorbidities may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a new treatment option for patients with advanced solid tumors that currently have limited therapeutic options.

How similar studies have performed: While this approach is novel in targeting Nectin-4, similar studies have shown promise in evaluating new therapies for advanced solid tumors.

Eligibility criteria

Show full inclusion / exclusion criteria
Main Inclusion Criteria:

* Histologically confirmed, unresectable, locally advanced or metastatic solid tumors that are known to express Nectin-4
* Prior systemic treatment for locally advanced or metastatic disease, yet no therapy with demonstrated clinical benefit for the tumor type is available.
* Measurable disease according to RECIST 1.1.
* Archival tumor tissue obtained within 4 months of screening and since the last anticancer therapy prior to the study or agree to undergo a tumor biopsy at baseline.
* Adequate organ function and hematological function.

Main Exclusion Criteria:

* Known or suspected brain metastases.
* Participants with an active infection, Any other infection requiring systemic treatment or latent infection.
* Participants with clinically significant comorbidity(s).
* History of treatment for, or suspicion or confirmed interstitial lung disease (ILD) at baseline.
* Condition being treated with systemic corticosteroids or immunosuppressive therapy during IPH4502 treatment.
* Thromboembolic event requiring anticoagulation therapy ≤14 days prior to the first dose of IPH4502.
* Clinically significant cardiovascular disease and/or cardiac repolarization abnormality.
* Participants with symptomatic heart failure, Acute coronary syndromes
* Participant is receiving or has received anticancer therapy prior to enrolment that may have impact on the assessment of IPH4502.
* Major surgery ≤28 days and minor surgery ≤7 days prior to first dose of IPH4502 or 6 months for coronary artery bypass surgery.
* Concomitant medications or vaccines : Live-attenuated vaccines ≤ 6 weeks prior to first dose of IPH4502; systemic corticosteroids or other immunosuppressive agents within 14 days prior to the first dose of IPH4502; systemic use of moderate or strong CYP 3A4 inhibitors; systemic use of moderate or strong CYP 3A4 inducers.

Where this trial is running

Boston, Massachusetts and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Advanced or Metastatic Solid TumorsExatecanTopo-Isomerase I inhibitorSquamous cell carcinoma of the head and neckEsophageal squamous cell carcinomaTriple negative breast cancerNon-small cell lung cancerGastro-esophageal junction and gastric cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.