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Study of ALE.C04 in Patients With Head and Neck Cancer

A Phase I/II, Open-Label, Multi-Center Study of ALE.C04 as a Single Agent and in Combination With Pembrolizumab in Adult Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06054477
Enrollment
21
Registered
2023-09-26
Start date
2023-10-30
Completion date
2025-02-12
Last updated
2025-02-17

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

Conditions

Head and Neck Cancer, Head and Neck Squamous Cell Carcinoma

Keywords

Immunotherapy, Anti-Claudin1, ALE.C04, Phase I/II

Brief summary

The purpose of this study is to evaluate the safety profile of ALE.C04 monotherapy and in combination with pembrolizumab, to characterize pharmacokinetics profile of ALE.C04, recommended Phase II dose (RP2D) for ALE.C04 in combination with pembrolizumab and to assess anti-tumor activity of ALE.C04 in combination with pembrolizumab in patients with Head and Neck Cancer.

Detailed description

The study comprises a phase I and a phase II. The phase I dose escalation part for both ALE.C04 monotherapy and in combination with pembrolizumab and a recommended dose for expansion (RDE) part for ALE.C04 in combination with pembrolizumab. The phase II comprises a 1:1 randomized 2 arms assessing ALE.C04 and pembrolizumab given in combination versus pembrolizumab monotherapy

Interventions

Q3W

DRUGPembrolizumab

200mg Q3W

Sponsors

Alentis Therapeutics AG
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

Open Label

Intervention model description

Phase 1 will consist of i) a dose escalation of ALE.C04 monotherapy evaluating approximately 3 dose levels of ALE.C04, ii) a dose escalation of ALE.C04 and pembrolizumab combination evaluating approximately 2 dose levels of ALE.C04 and iii) a randomized two RDEs evaluating two dose level of ALE.C04 combined with pembrolizumab to establish Recommended Phase 2 Dose (RP2D). Phase 2 will consist of a 1:1 randomized 2 arms comparing ALE.C04 (at the RP2D dose determined in the phase 1) combined to pembrolizumab with pembrolizumab alone.

Eligibility

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

Inclusion criteria

1. Be willing and able to provide written informed consents 2. Be 18 years of age on day of signing informed consent. 3. Have histologically or cytologically confirmed Recurrent or Metastatic (R/M) Head and Neck Squamous Cell Carcinoma (HNSCC) that is considered incurable by local therapies. 4. Have provided tissue for claudin-1 (CLDN1), programmed death ligand-1 (PD-L1) and biomarker analysis in a central Clinical Laboratory Improvement Amendments (CLIA)-certified laboratory. 5. Have measurable disease based on RECIST 1.1 as determined by the site. 6. Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Group (ECOG) Performance Scale. 7. Have results from testing of human papillomavirus (HPV) status for oropharyngeal cancer

Exclusion criteria

1. Has progressive disease (PD) within 6 months of completion of curatively intended systemic treatment for locoregionally advanced HNSCC (Phase II randomized combination part only). 2. Has had radiation therapy (or other non-systemic therapy) within 2 weeks prior to randomization or patient has not fully recovered (i.e., ≤Grade 1 or at baseline) from adverse events due to a previously administered treatment. Palliative radiotherapy to a limited field is allowed. 3. Severe immune-related adverse events leading to discontinuation of prior immune-oncology agent only for Phase I dose escalation monotherapy and combination and Phase II monotherapy. 4. Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis. 5. Dermatological conditions requiring active pharmacological treatment including psoriasis, atopic dermatitis, excessively dry skin or recurrent conjunctivitis, scleroderma, vitiligo, or any other active autoimmune dermatological disorder. 6. Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the clinical study, interfere with the patient's participation for the full duration of the clinical study, or is not in the best interest of the patient to participate, in the opinion of the treating investigator. 7. Has received prior therapy with an anti-programmed death (PD)-1, anti-PD-L1 or anti-PD-L2 (Phase II randomized combination part only).

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Dose Limiting Toxicity (DLT)21 daysPhase I dose escalation
Incidence and severity of adverse events (AEs), serious adverse events (SAEs)Up to 30 days after last dose - Approximately 4.5 yearsDescriptive statistics will be used to summarize results
Confirmed Objective Response Rate (ORR) by investigators assessment according to Response Evaluation Criteria in Solid Tumors (RECIST) 1.1Up to 4.5 yearProportion of patients with confirmed Complete Response (CR) or Partial Response (PR) according to RECIST 1.1 for Phase II
Confirmed Progression Free Survival (PFS) by Blinded Independent Central Review (BICR) assessment according to RECIST1.1Up to 4.5 yearTime from start of study treatment to first documentation of objective progressive disease (PD) as per RECIST1.1 or to death due to any causes whichever come first during phase II

Secondary

MeasureTime frameDescription
Duration Of Response (DOR)up to 4.5 yearsThe time from first documentation of objective response to the first documentation of PD per RECIST 1.1 or to death due to any cause, whichever comes first.
Immune Duration Of Response (iDOR)up to 4.5 yearsThe time from first documentation of objective response to the first documentation of immune PD per immune RECIST or to death due to any cause, whichever comes first.
Progression Free Survival (PFS) evaluated by investigatorsup to 4.5 yearsThe time from start of study treatment to first documentation of objective PD per RECIST1.1 following study therapy, or to death due to any cause, whichever comes first.
Immune Progression Free Survival (iPFS) evaluated by investigatorsup to 4.5 yearsThe time from start of study treatment to first documentation of objective immune PD per immune RECIST following study therapy, or to death due to any cause, whichever comes first.
Overall Survival (OS)up to 4.5 yearsThe time from start of study treatment to date of death due to any cause.
Maximum serum concentration (Cmax) pharmacokinetics (PK) of ALE.C04up to 4.5 yearsMaximum serum concentration (Cmax) will be derived by non-compartmental analysis and summarized by dose cohort
Minimum serum concentration (Cmin) pharmacokinetics (PK) of ALE.C04up to 4.5 yearsMinimum serum concentration will be derived by non-compartmental analysis and summarized by dose cohort
Confirmed ORR by investigators assessment according to RECIST1.1up to 4.5 yearProportion of patients with confirmed CR or PR according to RECIST1.1
Maximum serum concentration (Cmax) Pharmacokinetics (PK) of pembrolizumabup to 4.5 yearsMaximun Serum concentration (Cmax) by time point will be reported
Minimum serum concentration (Cmin) Pharmacokinetics (PK) of pembrolizumabup to 4.5 yearsMinimum serum concentration (Cmin) by time point will be reported
Area under the concentration-time curve (AUC) Pharmacokinetics (PK) of pembrolizumabup to 4.5 yearsArea under the concentration-time curve (AUC) by time point will be reported
Immunogenicity of ALE.C04up to 4.5 yearsTo assess the presence of serum anti-drug antibodies (ADA) against ALE.C04
Change from baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire C30Phase II combination part only - Up to 4.5 yearThe C30 has 30 items in total. Among those items, 28 items are symptoms scales with score range from 1 to 4. A high score represents a high level of symptomatology. The 2 other items are global health status with score range of 1 to 7. A high score represents high quality of life.
Change from baseline in European Organisation for Research and Treatment of Cancer Quality of Life Question Head and Neck module 43 (HN43)Phase II combination part only - Up to 4.5 yearThe HN43 has 43 items of symptoms scale with score range of 1 to 4. A high score represents a high level of symptomatology.
Area under the concentration-time curve (AUC) pharmacokinetics (PK) of ALE.C04up to 4.5 yearsArea under the concentration-time curve will be derived by non-compartmental analysis and summarized by dose cohort
Confirmed immune Objective Response Rate (iORR) by investigators assessment according to immune RECISTup to 4.5 yearProportion of patients with confirmed immune CR or immune PR according to immune RECIST
Disease Control Rate (DCR) as per investigator assessment according to RECIST1.1up to 4.5 yearsProportion of patients with CR, PR or Stable Disease (SD) according to RECIST1.1
Immune Disease Control Rate (iDCR) as per investigator assessment according to immune RECISTup to 4.5 yearsProportion of patients with immune CR, immune PR or immune SD according to immune RECIST

Countries

Canada, France, Hong Kong, Italy, Singapore, Spain, Switzerland, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026