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A Study of TLN-254 in Participants With Relapsed or Refractory T-cell Lymphoma

Phase 1b, Randomized, Dose Optimization Study to Assess the Anti-Tumor Activity, Safety, and Pharmacokinetics of TLN-254 in Patients With Relapsed or Refractory T-cell Lymphoma

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06733441
Enrollment
50
Registered
2024-12-13
Start date
2024-12-16
Completion date
2028-11-15
Last updated
2026-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lymphoma

Keywords

Relapsed or refractory Cutaneous T Cell Lymphoma, Relapsed or refractory Peripheral T Cell Lymphoma

Brief summary

The primary purpose of this study is to evaluate the anti-tumor activity of TLN-254 monotherapy in participants with relapsed or refractory T-cell lymphoma.

Interventions

DRUGTLN-254

TLN-254 will be administered orally at a specified dose on specified days depending on treatment allocation.

Sponsors

Treeline Biosciences, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Age: 1. At least 18 years of age at the time of signing the informed consent form (ICF). Type of Participant and Disease Characteristics: 2. Cohort 1: Peripheral T-cell lymphoma (PTCL) that has relapsed after, or not responded to at least one prior systemic treatment regimen. Participants with Anaplastic large cell lymphoma (ALCL) should have received prior brentuximab vedotin treatment. * Nodal T-follicular helper (TFH) cell lymphoma angioimmunoblastic; Follicular helper T-cell lymphoma, angioimmunoblastic type (angioimmunoblastic T-cell lymphoma). * Nodal TFH cell lymphoma, follicular type; Follicular helper T-cell lymphoma, follicular type. * Nodal TFH cell lymphoma, not otherwise specified (NOS); Follicular helper T-cell lymphoma, NOS. * PTCL, NOS. * Anaplastic large-cell lymphoma, Alkaline phosphatase (ALK) positive. * Anaplastic large-cell lymphoma, ALK negative. Cohort 2: Relapsed/refractory CTCL which has relapsed after, or not responded to at least two prior systemic treatments. * Sezary syndrome * Mycosis fungoides 3. Participant must have measurable disease at study entry. 4. Freshly biopsied or archival tissue available. Diagnostic Assessments: 5. Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2. 6. Adequate organ function. Contraception: 7. Participants must accept and follow the pregnancy prevention plan.

Exclusion criteria

Medical Conditions: 1. Participants must not have prior systemic anti-cancer treatment less than or equal to (≤) 5 half-lives or 4 weeks, allogeneic SCT≤90 days or autologous SCT ≤60 days prior to study intervention initiation. 2. Participants must not have any condition, including significant acute or chronic medical illness, active or uncontrolled infection, or the presence of laboratory abnormalities, that places participants at unacceptable risk if participating in this study. 3. Current or past history of central nervous system (CNS) involvement. Other Exclusions: * Pregnant or lactating women. * Unable to swallow tablets.

Design outcomes

Primary

MeasureTime frame
Percentage of Participants With Objective ResponseUp to 2 years
Percentage of Participants With CRUp to 2 years
Percentage of Participants With PRUp to 2 years

Secondary

MeasureTime frame
Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Up to 2 years
Number of Participants With Severity of TEAEs Based on National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 5.0Up to 2 years
Plasma concentrations of TLN-254Day 1 of Cycle 1 and Day 1 of each even numbered Cycle for up to 2 years (Each Cycle length =28 days)
Duration of Response (DOR)Up to 2 years

Countries

Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 19, 2026