A Study to Investigate ALE.P03 as Monotherapy in Adult Patients With Selected Advanced or Metastatic CLDN1+ Solid Tumors

NCT ID: NCT07169734

Last Updated: 2025-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

180 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-26

Study Completion Date

2029-10-04

Brief Summary

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The purpose of this study is to evaluate the safety, tolerability, pharmacokinetic, pharmacodynamic, preliminary anti-tumor activity, and to determine the recommended Phase II dose (RP2D) of the ALE.P03 monotherapy in adult patients with selected squamous solid tumors.

Detailed Description

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This Study has a Phase I ALE.P03 monotherapy dose escalation and recommended dose for expansion (RDE) study and a Phase II study of ALE.P03 as monotherapy at RP2D in adult patients with selected advanced or metastatic Claudin-1 positive (CLDN1+) cancers.

Conditions

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Cervical Squamous Cell Carcinoma Squamous Non-small-cell Lung Cancer Colorectal Cancer Intrahepatic Cholangiocarcinoma Urothelial Carcinoma

Keywords

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Claudin-1 Targeted Antibody-Drug Conjugate Monotherapy First-in-Human Recommended Phase 2 dose Recommended dose for expansion

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

For Phase I recommended dose for expansion (RDE) part of the study, patients will be randomized in 1:1 ratio to identify the recommended Phase II dose (RP2D) for Phase II.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Phase I Dose Escalation- ALE.P03

Patients will receive ALE.P03 as monotherapy via intravenous infusion. The ALE.P03 will be given at an escalated dose until Maximum tolerated dose (MTD) and/or a safe recommended dose for expansion (RDE) is determined in Phase I dose escalation part of the study.

Group Type EXPERIMENTAL

ALE.P03

Intervention Type DRUG

ALE.P03, will be administered by IV infusion according to the assigned arms.

Phase I Dose Expansion- ALE.P03

Patients will receive ALE.P03 as monotherapy via intravenous infusion. The safe recommended doses of ALE.P03 will be given in Phase I dose expansion part of the study to identify recommended Phase II dose (RP2D) for Phase II.

Group Type EXPERIMENTAL

ALE.P03

Intervention Type DRUG

ALE.P03, will be administered by IV infusion according to the assigned arms.

Phase II- ALE.P03

Patients will receive ALE.P03 as monotherapy via intravenous infusion at the RP2D, or according to the dosing schedule after the dose expansion phase.

Group Type EXPERIMENTAL

ALE.P03

Intervention Type DRUG

ALE.P03, will be administered by IV infusion according to the assigned arms.

Interventions

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ALE.P03

ALE.P03, will be administered by IV infusion according to the assigned arms.

Intervention Type DRUG

ALE.P03

ALE.P03, will be administered by IV infusion according to the assigned arms.

Intervention Type DRUG

ALE.P03

ALE.P03, will be administered by IV infusion according to the assigned arms.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Have histologically and cytologically metastatic confirmed advanced or metastatic colorectal cancer, intrahepatic cholangiocarcinoma, squamous non-small cell lung cancer, urothelial carcinoma, and cervical squamous cell carcinoma.
* Have documented radiological disease progression at study entry.
* Have provided tissue for CLDN1 (Claudin-1) analysis in a central laboratory.

Phase I Dose Escalation:

\- Received and being refractory/intolerant to available systemic standard of care (SOC) regimens (based on local institutional guidelines) for advanced disease.

Phase I RDE and Phase II:

* Received 1-2 available systemic SOC regimens (based on local institutional guidelines) for advanced disease and being refractory or intolerant to treatment.
* Patients with actionable oncogenic drivers: received feasible targeted therapy.

Applicable for Phase I Dose Escalation, Phase I RDE and Phase II:

* Measurable disease per RECIST 1.1, as determined by the site.
* Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Groups Performance Status.
* Demonstrate adequate bone marrow and organ function as per the protocol.

Exclusion Criteria

* SqNSCLC and CSCC: diagnosed with a tumor of predominantly non-squamous histology result or adenocarcinoma.
* Has received antineoplastic therapies prior to study intervention within specified time frame.
* Has rapidly progressing disease.
* Has known active central nervous system metastases and/or carcinomatous meningitis.
* Has a history of (non-infectious) interstitial lung disease/pneumonitis that required steroids or current symptomatic or clinically significant pneumonitis requiring steroids and/or immunosuppressive therapies.
* Has clinically significant gastrointestinal bleeding.
* Has an active infection requiring systemic treatment.
* Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the clinical study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Alentis Therapeutics AG

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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USC Norris Comprehensive Cancer Center

Los Angeles, California, United States

Site Status RECRUITING

Yale Comprehensive Cancer Center

New Haven, Connecticut, United States

Site Status RECRUITING

Norton Cancer Institute - Norton Healthcare Pavilion

Louisville, Kentucky, United States

Site Status RECRUITING

John Theurer Cancer Center

Hackensack, New Jersey, United States

Site Status RECRUITING

Next Oncology-Oncology

San Antonio, Texas, United States

Site Status RECRUITING

NEXT Oncology Virginia

Fairfax, Virginia, United States

Site Status RECRUITING

National Cancer Centre Singapore (NCCS)

Singapore, , Singapore

Site Status RECRUITING

Countries

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United States Singapore

Central Contacts

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Alentis Clinical Trial Contact

Role: CONTACT

Phone: +41782304288

Email: [email protected]

Facility Contacts

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Principal Investigator

Role: primary

Principal Investigator

Role: primary

Principal Investigator

Role: primary

Principal Investigator

Role: primary

Principal Investigator

Role: primary

Other Identifiers

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2025-521441-24-00

Identifier Type: CTIS

Identifier Source: secondary_id

ALE.P03.01

Identifier Type: -

Identifier Source: org_study_id