Purpose

The goal of the study is to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics and efficacy of TERN-701, a highly selective allosteric inhibitor of BCR-ABL1, in participants with previously treated chronic phase - chronic myeloid leukemia (CP-CML). The study has two parts: Part 1 of the trial (Dose Escalation) will evaluate sequential dose escalation cohorts of TERN-701 administered once daily. Part 2 (Dose Expansion) consists of randomized, parallel dose expansion cohorts of TERN-701 that will further evaluate the efficacy and safety of 2 recommended dose levels for expansion selected from Part 1. Part 2m (mutation cohort) will further evaluate the efficacy and safety of 500mg of TERN-701 in previously treated CP-CML participants with certain resistance mutations. In both Part 1 and Part 2, participants will receive continuous once daily dosing of TERN-701 divided into 28-day cycles. During the treatment period, participants will have scheduled visits to the trial center at Cycle 1 day 1(C1D1), C1D2 (Part 1 only), C1D8, C1D15, and C1D16 (Part 1 only), followed by Day 1 of Cycles 2 through 7, and Day 1 of every 3 cycles thereafter. Approximately 180 participants could be enrolled in this trial, up to 80 participants in Part 1 (dose escalation), including optional backfill cohorts, approximately 80 participants in Part 2 (randomized dose expansion), and approximately 20 participants in Part 2m (mutation cohort). All participants will receive active trial intervention. Four dose-level cohorts have been evaluated in Part 1; two dose levels will be evaluated in Part 2 (Randomized Dose Expansion), and one dose level will be evaluated in Part 2m (mutation cohort).

Conditions

Eligibility

Eligible Ages
Over 18 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Male or female participants ≥ 18 years of age at the time of signing the informed consent - Have an ECOG performance status score of 0 to 2 - Have an established cytopathologically confirmed diagnosis of BCR-ABL1 positive CML in Chronic Phase - Have received treatment with at least one prior TKI and have treatment failure, suboptimal response, or treatment intolerance - Prior treatment with asciminib is allowed - Adequate organ function, as assessed by local laboratory

Exclusion Criteria

  • Systemic antineoplastic therapy (including prior TKIs, interferon-alfa, therapeutic antibodies, chemotherapy) or other experimental therapy 7 days before the first dose of TERN-701 - Have completed previous anticancer therapy without resolution of all associated clinically significant toxicity (to ≤ Grade 2 or baseline)

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Intervention Model Description
A sequential Intervention Model was used for Part 1 Dose Escalation. In the Part 2 Randomized Dose Expansion, participants will be randomized to one of two selected doses in parallel for the duration of the study. Participants enrolled into Part 2m (mutational cohort) will receive the same selected dose
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Part 1- Dose Level 1 (160 mg) of TERN-701
Dose Level 1 of TERN-701 dosed once daily.
  • Drug: TERN-701
    TERN-701 orally QD
Experimental
Part 1- Dose Level 2 (320 mg) of TERN-701
Dose Level 2 of TERN-701 dosed once daily.
  • Drug: TERN-701
    TERN-701 orally QD
Experimental
Part 1- Dose Level 3 (400 mg) of TERN-701
Dose Level 3 of TERN-701 dosed once daily.
  • Drug: TERN-701
    TERN-701 orally QD
Experimental
Part 1- Dose Level 4 (500 mg) of TERN-701
Dose Level 4 of TERN-701 dosed once daily.
  • Drug: TERN-701
    TERN-701 orally QD
Experimental
Part 2 - Dose 1 (320 mg)
Dose 1 was selected based on the totality of safety, PK, PD and efficacy data from Part 1. TERN-701 administered once daily.
  • Drug: TERN-701
    TERN-701 orally QD
Experimental
Part 2 - Dose 2 (500 mg)
Dose 2 was selected based on the totality of safety, PK, PD and efficacy data from Part 1. TERN-701 administered once daily.
  • Drug: TERN-701
    TERN-701 orally QD
Experimental
Part 2m - 500 mg Dose
Dose for Part 2m was selected based on the totality of safety, PK, PD and efficacy data from Part 1 and nonclinical data. TERN-701 is administered once daily.
  • Drug: TERN-701
    TERN-701 orally QD

Recruiting Locations

University of Alabama Medicine (UAB Medicine)
Birmingham 4049979, Alabama 4829764 35233

More Details

Status
Recruiting
Sponsor
Terns, Inc.

Study Contact

Study Director
650-525-5535
clinicaltrials@ternspharma.com

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.