Skip to content

Safety and Tolerability of TNG462 in Patients With MTAP-deleted Solid Tumors

A Phase 1/2, Multi-Center, Open-Label Study to Evaluate the Safety, Tolerability, and Preliminary Anti-tumor Activity of TNG462 as a Single Agent and in Combination in Patients With MTAP-deleted Advanced or Metastatic Solid Tumors

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05732831
Enrollment
225
Registered
2023-02-17
Start date
2023-05-26
Completion date
2026-09-30
Last updated
2025-11-14

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

Conditions

Locally Advanced Solid Tumor

Keywords

MTAP deletion, PRMT5, cholangiocarcinoma, NSCLC, mesothelioma, MPNST, Tango, pancreatic, sarcoma, urothelial, gallbladder, liver, renal, breast

Brief summary

This is a first in human study in patients with advanced or metastatic solid tumors known to have an MTAP deletion. The first part of the study is an open-label, dose escalation and the second part is an open label dose expansion in specific MTAP-deleted tumor types. The study drug, TNG462, is a selective PRMT5 inhibitor administered orally. The study is planned to treat up to 225 participants.

Detailed description

This is a Phase 1/2 multi-center, open label study in solid tumor patients who have a confirmed homozygous MTAP deletion in their tumor. The Phase 1 portion is a dose escalation study of oral TNG462 administered as a single agent and in combination with pembrolizumab in patients with confirmed MTAP-deleted solid tumors. In Phase 2, 6 expansion arms defined by confirmed MTAP-deleted tumor types will enroll in parallel at the RP2D(s) of TNG462 and in combination. In both parts of the study participants who tolerate the drug may continue treatment until disease progression.

Interventions

DRUGTNG462

TNG462, a selective PRMT5 inhibitor, will be administered orally

DRUGPembrolizumab

An anti PD-1 antibody, will be administered intravenously

Sponsors

Tango Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Phase 1 dose escalation (sequential) followed by phase 2 dose expansion in 5 arms (parallel)

Eligibility

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

Inclusion criteria

1. Age: ≥18 years-of-age at the time of signature of the main study ICF 2. Performance status: ECOG Performance Score of 0 to 1 3. Confirmed histologic or cytologic diagnosis of a locally advanced, metastatic, and/or unresectable solid tumor 4. Prior standard therapy, as available 5. Documented bi-allelic (homozygous) deletion of MTAP in a tumor detected by next- generation sequencing or absence of MTAP protein in a tumor detected by IHC. 6. Adequate organ function/reserve per local labs 7. Adequate liver function per local labs 8. Adequate renal function per local labs 9. Negative serum pregnancy test result at screening 10. Written informed consent must be obtained according to local guidelines

Exclusion criteria

1. Known allergies, hypersensitivity, or intolerance to TNG462, or its excipients or to pembrolizumab in the combination treatment arms 2. Uncontrolled intercurrent illness that will limit compliance with the study requirements 3. Active infection requiring systemic therapy 4. Currently participating in or has planned participation in a study of another investigational agent or device 5. Impairment of GI function or disease that may significantly alter the absorption of oral TNG462 6. Active prior or concurrent malignancy. 7. Central nervous system metastases associated with progressive neurological symptoms 8. Current active liver disease from any cause 9. Known to be HIV positive, unless all of the following criteria are met: 1. CD4+ count ≥300/μL 2. Undetectable viral load 3. Receiving highly active antiretroviral therapy 10. Clinically relevant cardiovascular disease 11. A female patient who is pregnant or lactating 12. Patient is unwilling or unable to comply with the scheduled visits, drug administration plan, laboratory tests, biopsy, or other study procedures and study restrictions 13. Patient has a prior or ongoing clinically significant illness, medical condition, surgical history, physical finding, or laboratory abnormality that, in the investigator's opinion, may affect the safety of the patient or impair the assessment of study results

Design outcomes

Primary

MeasureTime frameDescription
Phase 1 Maximum Tolerated Dose28 days and 21 daysTo determine the maximum tolerated dose (MTD) of TNG462 when administered as a single agent and in combination with pembrolizumab
Phase 1 Dosing Schedule28 daysTo determine the dosing schedule of TNG462
Phase 2 Anti-neoplastic Activity16 weeks and 18 weeksTo assess anti-neoplastic activity of TNG462 administered single agent and in combination with pembrolizumab in patients with MTAP-deleted advanced solid tumors by RECIST v1.1, iRECIST or mRECIST v1.1

Secondary

MeasureTime frameDescription
Phase 1 and 2 Time to Achieve Maximal Plasma Concentration16 daysMeasure the time to achieve maximal plasma concentration (Tmax)
Phase 1 and 2 Maximum Observed Plasma Concentration16 daysMeasure the maximum observed plasma concentration (Cmax)
Phase 1 and 2 Terminal Elimination Half-life16 daysDetermine the terminal elimination half-life (t1/2)
Phase 1 Anti-neoplastic Activity16 weeksTo assess preliminary evidence of anti-neoplastic activity of TNG462 as a single agent and when administered in combination with pembrolizumab in patients with MTAP-deleted advanced solid tumors by RECIST v1.1, iRECIST or mRECIST v1.1
Phase 1 and 2 Volume of Distribution16 daysDetermine the apparent volume of distribution when dosed orally (Vz/F)
Phase 1 and 2 SDMA Levels28 daysSDMA levels in tumor tissue will be assessed pre-treatment and post treatment with TNG462
Phase 1 and 2 Total Plasma Clearance16 daysDetermine the apparent total plasma clearance when dosed orally (CL/F)
Phase 1 and 2 Adverse Event Profile28 days and 21 daysTo describe the safety and tolerability profile of TNG462 by frequency and severity of AEs
Phase 1 and 2 Concentration versus Time Curve16 daysMeasure the area under the plasma concentration versus time curve (AUC)

Countries

France, Spain, United States

Contacts

Primary ContactTango Clinical Trials
clinicaltrials@tangotx.com(857) 320-4899

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026