Study of Safety and Tolerability of BCA101 Monotherapy and in Combination Therapy in Patients With EGFR-driven Advanced Solid Tumors

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorBicara Therapeutics

About this trial

The investigational drug to be studied in this protocol, BCA101, is a first-in-class compound that targets both EGFR with TGFβ. Based on preclinical data, this bifunctional antibody may exert synergistic activity in patients with EGFR-driven tumors.

Eligibility criteria

Qualifiers

Patient must have measurable disease amendable to biopsy and be willing to undergo both a pre-treatment and on-treatment biopsy, as well as provide archival tumor if available from the primary tumor (a paraffin embedded tumor tissue block sufficient to obtain at least 10 sections of 4 to 5 micrometer thickness).

Patient must have a performance status of ≤1 on the Eastern Cooperative Oncology Group Performance Scale.

Patients must have evaluable or measurable disease (computed tomography [CT]/magnetic resonance imaging [MRI] scans performed within 21 days before the screening visit are acceptable) demonstrating measurable disease, i.e., at least 1 unidimensional measurable lesion as defined by Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST 1.1) and Immune Response Evaluation Criteria in Solid Tumors (iRECIST).

Expansion Cohort 3: Squamous Carcinoma of the Anal Canal (SCAC), locally advanced/unresectable or metastatic.

Disqualifiers

For Part A: Exposure to anti-EGFR antibodies within 4 weeks of the first dose of study drug.

Prior treatment with any anti-TGFβ therapy.

Prior history of Grade ≥ 2 intolerance or hypersensitivity reaction to cetuximab or other anti-EGFR therapy or other murine proteins or prior discontinuation of therapy in the setting of toxicity related to treatment.

Pregnant or breastfeeding women.

Trial design

Treatments tested in this trial

  • BCA101
  • Pembrolizumab

Treatment groups

292 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Bicara Therapeutics

Lead sponsor

Merck Sharp & Dohme LLC

Collaborator