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IMA401 TCER® in Recurrent and/or Refractory Solid Tumors, Alone or in Combination With a Checkpoint Inhibitor

A Phase Ia/Ib First-In-Human Clinical Trial to Evaluate the Safety, Tolerability and Initial Anti-Tumor Activity of IMA401, a Bispecific T Cell Engaging Receptor Molecule (TCER®), as Monotherapy or in Combination With Checkpoint Inhibitor in Patients With Recurrent and/or Refractory Solid Tumors.

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05359445
Enrollment
95
Registered
2022-05-03
Start date
2022-05-19
Completion date
2029-12-01
Last updated
2026-04-30

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

Conditions

Cancer, Recurrent Cancer, Refractory Cancer, Solid Tumor, Adult

Keywords

MAGE-A4

Brief summary

The goal of this clinical trial is to evaluate the safety, tolerability and initial anti-tumor activity of IMA401 as monotherapy or in combination with checkpoint inhibitor in patients with recurrent and/or refractory solid tumors. Patients' HLA status and expression of the MAGE-A4 and/or MAGE-A8 target in the tumor must be confirmed. Primary objective: * To determine the maximum tolerated dose and/or recommended dose for extension for IMA401 as monotherapy and in combination with pembrolizumab Secondary objectives: * To characterize the safety and tolerability of IMA401 as monotherapy and in combination with pembrolizumab * To evaluate initial anti-tumor activity of IMA401 as monotherapy and in combination with pembrolizumab * To describe the pharmacokinetics of IMA401 as monotherapy and in combination with pembrolizumab

Interventions

BIOLOGICALIMA401 (Phase Ia)

Intravenous infusions in escalating dose levels

BIOLOGICALPembrolizumab (Phase Ia)

Intravenous infusions in escalating dose levels for combination of IMA 401 and Pembrolizumab

BIOLOGICALIMA 401 (Phase Ib)

Treatment at recommended dose for extension (RDE)

Sponsors

Immatics Biotechnologies GmbH
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients must have voluntarily signed a written ICF, be able to understand and comply with clinical trial procedures * Patients ≥ 18 years old * Patients must have pathologically confirmed and documented advanced and/or metastatic NSCLC or HNSCC, other solid tumor may be considered * Confirmed HLA status and IMA401 tumor target MAGE-A4 and/or MAGE-A8 expression * Life expectancy \> 2 months * ECOG Performance Status of 0 to 1 * Measurable disease according to RECIST 1.1 * Adequate baseline hematologic, renal and hepatic function; acceptable coagulation status * Patients must have recurrent and/or refractory solid tumors and must have received or not be eligible for all available indicated standard of care treatments * The patient must have recovered from any side effects of prior therapy to Grade 1 or lower (except for non-clinically significant toxicities; e.g., alopecia, vitiligo) prior to treatment start. As determined by the investigator, the patient may still be eligible if the patient has not fully recovered from Grade ≥ 2 toxicities, in case if these toxicities are not anticipated to further improve (e.g., chronic peripheral neuropathy) and such toxicities are not anticipated to worsen with the IMA401 therapy

Exclusion criteria

* Other active malignancies that require treatment or that might interfere with the trial endpoints (ongoing adjuvant anti-hormonal treatment is allowed) * History of hypersensitivity to components of IMA401, CPI treatment or rescue medications, contraindication for pembrolizumab * Patients with prior allogeneic stem cell transplantation or organ transplantation * Patients with autoimmune diseases needing disease-directed treatment * Any serious or uncontrolled health condition, which, in the opinion of the Investigator, would place the subject at undue risk from the study, impair the ability of the subject to receive protocol specified therapy, or interfere with the interpretation of study results * Positive for HIV or with active hepatitis B or C infection. * Patients with active infection * Systemic corticosteroids (≥ 10 mg/day prednisone or equivalent) received 2 weeks prior to starting trial treatment * Patients with active central nervous system metastases and leptomeningeal metastases

Design outcomes

Primary

MeasureTime frame
Number of patients with dose limiting toxicities44 months

Secondary

MeasureTime frame
Number of patients with treatment-emergent adverse events (TEAEs)93 months
Number of patients with serious TEAEs93 months
Number of patients with treatment emergent adverse events of special interest (AESIs)93 months
Frequency of dose interruptions and reductions93 months
Duration of dose interruptions and reductions93 months
Overall response rate (ORR) based on best overall response (BOR) of complete response (CR) and partial response (PR) locally assessed using RECIST v1.1 and iRECIST93 months
Disease control rate (DCR) of CR, PR or stable disease (SD) lasting 6 or more weeks following the initiation of IMA40193 months
Duration of response (DOR) of CR or PR based on RECIST v1.1 and iRECIST93 months
Progression-free survival (PFS) based on RECIST v1.1 and iRECIST93 months
Overall survival (OS)93 months
Determination of IMA 401 PK parameter: maximal serum concentration (Cmax)44 months
Determination of IMA 401 PK parameter: time at Cmax (Tmax)44 months
Determination of IMA 401 PK parameter: minimal serum concentration (Cmin)44 months
Determination of IMA 401 PK parameter: area under the serum concentration-time curve (AUC)44 months
Determination of IMA 401 PK parameter: clearance (Cl)44 months
Determination of IMA 401 PK parameter: volume of distribution (Vss)44 months
Determination of IMA 401 PK parameter: half-life (t1/2)44 months
Determination of IMA 401 PK parameter: assessment of dose-proportionality44 months
Determination of IMA 401 PK parameter: steady-state attainment44 months

Countries

Germany

Contacts

STUDY_DIRECTORImmatics Biotechnologies GmbH

Immatics Biotechnologies GmbH

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 2, 2026