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Brief Title: A First-in-human Study of ILDR2 (Immunoglobulin-like Domain Containing Receptor 2) Function-blocking Antibody BAY1905254

An Open-label, Phase 1, First-in-human, Dose Escalation and Expansion Study to Evaluate the Safety, Tolerability, Maximum Tolerated or Administered Dose, Pharmacokinetics, Pharmacodynamics and Tumor Response Profile of the ILDR2 Function-blocking Antibody BAY1905254 in Patients With Advanced Solid Tumors


  • Org Study ID: 18789
  • Secondary ID: N/A
  • NCT ID: NCT03666273
  • Sponsor: Bayer


This study is being done to learn more about a new drug called Bapotulimab given in combination with Pembrolizumab. The purpose of this study is to learn if this new combination of drugs is safe for the participants, how it affects the body and to try to find the best dose of the new drug to give to participants and to obtain a preliminary assessment of the tumor response efficacy in the recurrent or metastatic Head and Neck Cancer.

  • Overall Status
  • Start Date
    September 12, 2018
  • Phase
    Phase 1
  • Study Type


Primary Outcome 1 - Measure:

Primary Outcome 1 - Timeframe: N/A


  • Advanced Solid Tumor
  • Head and Neck Squamous Cell Carcinoma


Main Inclusion Criteria:
* Male or female patients aged ≥ 18 years.

- * Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1.

- * Patients must have measurable disease (at least one unidimensional measurable lesion by Computed tomography [CT] or Magnetic resonance imaging [MRI]) per Response evaluation criteria in solid tumors (RECIST) 1.1, and following histologically confirmed, advanced or metastatic solid tumors:
* Dose escalation: All solid tumor types with a likelihood of sensitivity to immunotherapy, as judged by the investigator.

- * Expansion of Bapotulimab in combination with pembrolizumab in Head and neck squamous cell carcinoma (HNSCC): recurrent or metastatic head and neck squamous cell carcinoma IO-naïve PDL1+/ CPS≥1(PD-L1: Programmed death ligand 1; CPS: Combined positive score).

- * Provision of archival tumor tissue at screening is mandatory for all patients in dose escalation.

- * For dose escalation, patients: must have received standard therapy or have no standard therapy available or patients have actively refused any treatment which would be regarded standard. Or in the opinion of investigator have been considered ineligible for a particular form of standard therapy on medical grounds.

- * Adequate bone marrow, liver and renal function.

- * Adequate cardiac function, measured by echocardiography.
Main Exclusion Criteria:
* History of severe immune related adverse effects from prior immunotherapy (CTCAE v.5.0 Grade 4; CTCAE v.5.0 Grade 3 requiring treatment > 4 weeks), except hypothyroidism clinically stable on hormone replacement treatment and controlled type 1 diabetes.

- * Severe (CTCAE v.5.0 Grade ≥ 3) infections within 4 weeks before the first study drug administration, including but not limited to hospitalization for complications of infection, bacteremia, or severe pneumonia. Clinically active infections (CTCAE v.5.0 > Grade 1) within 2 weeks before the first study drug administration.

- * Previous or active myocarditis/myositis in history (independent of cause)

- * Active or history of autoimmune disease.

- * Known human immunodeficiency virus (HIV) infection.

- * Active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection.

- * Treatment with systemic immunosuppressant medications within 2 weeks before the first study drug administration.

- * Ongoing or previous anti-cancer treatment or any immunostimulatory treatment including but not limited to interferons (IFNs), interleukin (IL)-2 and agonists for members of the tumor necrosis factor (TNF) receptor superfamily (e.g. 4-1BB) within 4 weeks before the first study drug administration.

- * For dose expansion cohort of Bapotulimab in combination with pembrolizumab in HNSCC: has progressive disease (PD) within six (6) months of completion of curatively intended systemic treatment for locoregionally advanced HNSCC.

Gender: All

Minimum Age: 18 Years

Maximum Age: N/A

Healthy Volunteers: No


Name: Bayer Study Director

Role: Study Director

Affiliation: Bayer

Overall Contact

Name: N/A

Phone: N/A

Email: N/A


Facility Status Contact