Phase 1/2 Study of BBT-176 in Advanced NSCLC With Progression After EGFR TKI Treatment

Bridge Biotherapeutics

Status and phase: Terminated; Phase 2; Phase 1

Conditions: NSCLC

Treatments: Drug: BBT-176, QD; Drug: BBT-176, BID

Study type: Interventional

Funder types: Industry

Identifiers

NCT04820023

BBT176-ONC-001

Details and patient eligibility

About

This clinical trial is the first-in-human study of BBT-176. The purpose of this trial is to investigate the safety and tolerability of BBT-176 (Part 1) and to evaluate the anti-tumor activity of BBT-176 (Part 2).

Enrollment: 45 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion Criteria:

• Provision of signed and dated, written informed consent before any study specific procedures, sampling and analyses

• Histological or cytological confirmation of advanced and/or metastatic stage IIIB/IV NSCLC

• Radiological documentation of disease progression while on a previous continuous (at least 30 days) treatment with an EGFR TKI monotherapy (including, but not limited to, osimertinib, afatinib, gefitinib, or erlotinib)

• Patients must fulfill one of the following:

  • Confirmation that the tumor harbors an EGFR mutation known to be associated with EGFR TKI sensitivity (including, but not limited to, exon 19 deletion, L858R, or L861Q)
  • Documented partial or complete response or a significant and durable stable disease (at least 6 months), based on the RECIST or WHO criteria, after treatment of an EGFR TKI

Key Exclusion Criteria:

• Treatment with any of the following:

  • An EGFR TKI, including but not limited to osimertinib, afatinib, gefitinib, or erlotinib within 8 days of the first dose of study treatment.
  • Any cytotoxic chemotherapy, investigational agents, or anticancer drugs for the treatment of advanced NSCLC, between prior EGFR TKI treatment and BBT-176 treatment
  • Major surgery (excluding placement of vascular access) within 4 weeks of the first dose of study treatment
  • Radiotherapy with a limited field of radiation for palliation within 1 week of the first dose of study treatment
  • Patients receiving radiation to more than 30% of the bone marrow or with a wide field of radiation within 6 weeks of the first dose of study treatment

• Any unresolved toxicities from prior therapy greater than NCI Common Terminology Criteria for Adverse Events (CTCAE v5.0) Grade 1 at the time of starting study treatment, with the exception of alopecia and Grade 2 neuropathy related to prior platinum-therapy

• Spinal cord compression or brain metastases, unless asymptomatic and stable

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Single Group Assignment

Masking: None (Open label)

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45 participants in 9 patient groups

20mg QD

Experimental group

Description:

BBT-176: 20mg, Orally, Once daily (QD)

Treatment:

Drug: BBT-176, QD

80mg QD

Experimental group

Description:

BBT-176: 80mg, Orally, QD

Treatment:

Drug: BBT-176, QD

160mg QD

Experimental group

Description:

BBT-176: 160mg, Orally, QD

Treatment:

Drug: BBT-176, QD

320mg QD

Experimental group

Description:

BBT-176: 320mg, Orally, QD

Treatment:

Drug: BBT-176, QD

480mg QD

Experimental group

Description:

BBT-176: 480mg, Orally, QD

Treatment:

Drug: BBT-176, QD

600mg QD

Experimental group

Description:

BBT-176: 600mg, Orally, QD

Treatment:

Drug: BBT-176, QD

160mg, BID

Experimental group

Description:

BBT-176: 160mg, Orally, Twice daily (BID)

Treatment:

Drug: BBT-176, BID

200mg, BID

Experimental group

Description:

BBT-176: 200mg, Orally, BID

Treatment:

Drug: BBT-176, BID

240mg, BID

Experimental group

Description:

BBT-176: 240mg, Orally, BID

Treatment:

Drug: BBT-176, BID