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Study of KBA1412 in Participants With Advanced Solid Malignant Tumors

Phase 1
Completed
Conditions
Advanced Solid Tumor Malignancy
Interventions
Drug: KBA1412
Drug: Pembrolizumab
Registration Number
NCT05501821
Lead Sponsor
Kling Biotherapeutics B.V.
Brief Summary

The purpose of this trial is to assess the safety and efficacy of KBA1412, a patient derived, fully human, monoclonal antibody targeting CD9, in patients with advanced solid malignant tumors

Detailed Description

Patient interested in participation in a clinical study will be informed about the study and potential risks, all patients giving written informed consent will undergo a 3-week screening period to determine their eligibility for entry in the study. Patients will receive KBA1412 or KBA1412 in combination with pembrolizumab.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
16
Inclusion Criteria

Not provided

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Exclusion Criteria

Not provided

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Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Part A, dose escalation monotherapyKBA1412KBA1412 monotherapy, given intravenously, Q3W, multiple dose levels
Part B, expansion monotherapyKBA1412KBA1412 monotherapy, given intravenously, Q3W, at fixed dose as defined in dose-escalation phase (Part A)
Part C, expansion combination therapyKBA1412KBA1412 in combination with pembrolizumab, given intravenously, Q3W, KBA1412 at fixed dose as defined in dose-escalation phase (Part A), Pembrolizumab at fixed dose
Part C, expansion combination therapyPembrolizumabKBA1412 in combination with pembrolizumab, given intravenously, Q3W, KBA1412 at fixed dose as defined in dose-escalation phase (Part A), Pembrolizumab at fixed dose
Primary Outcome Measures
NameTimeMethod
Number of participants with an antitumor response to KBA1412 monotherapy (Part B) or to KBA1412 in combination with pembrolizumab (Part C)Approximately 24 weeks

Response according to immune Response Evaluation Criteria in Solid Tumors (iRECIST)

Part A: Frequency and type of DLT s using the CTCAE v5.0First 21 days of treatment

A DLT is defined as an adverse event that is unrelated to disease progression, intercurrent illness, or concomitant medications and is occurring during the first 21 days of treatment. These events will be classified according to the CTCAE v5.0

Part A & B & C: Frequency and severity of AEs as assessed by CTCAE v5.0Through study completion, an average of 1 year

Monitoring incidence and severity of Adverse Events during trial participation for each participant

Secondary Outcome Measures
NameTimeMethod
Part A: Number of participants with an antitumor response to KBA1412 monotherapyApproximately 24 weeks

Response according to immune Response Evaluation Criteria in Solid Tumors (iRECIST)

Change in biomarkers for KBA1412 monotherapy (Part A & B) and KBA1412 in combination with pembrolizumab (Part C) pre- and post-dose in tumor tissueApproximately 24 weeks

Change in pharmacodynamic properties of KBA1412 pre- and post-dose in immune infiltration, activation and cytotoxicity assessed by Immunohistochemistry

Incidence and prevalence of anti-KBA1412 antibodies for KBA1412 monotherapy (Part A & B) and KBA1412 in combination with pembrolizumab (Part C)Approximately 24 weeks

Development of antibodies (anti-drug antibodies) to KBA1412 will be evaluated for all participants

Pharmacokinetic of KBA1412 monotherapy (Part A & B) and KBA1412 in combination with pembrolizumab (Part C), area under the concentration versus time curve (AUC)Approximately 24 weeks

Area under the plasma concentration versus time curve (AUC) of KBA1412 will be assessed in all participants

Trial Locations

Locations (5)

University Hospital Ghent

🇧🇪

Ghent, Belgium

Dutch Cancer Institute AVL

🇳🇱

Amsterdam, Netherlands

Erasmus Medical Center Rotterdam

🇳🇱

Rotterdam, Netherlands

University Hospital Antwerp

🇧🇪

Antwerp, Belgium

University Hospital Leiden (LUMC)

🇳🇱

Leiden, Netherlands

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