Recruiting
Phase 1
Phase 2

EO2463

Sponsor:

Enterome

Code:

NCT04669171

Conditions

Follicular Lymphoma

Marginal Zone Lymphoma

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

EO2463

lenalidomide

rituximab

Study Details

Brief summary:

The purpose of this study is to define the recommended Phase 2 Dose, safety, tolerability, immunogenicity, and preliminary efficacy of EO2463 during monotherapy and in combination with lenalidomide and/or rituximab in patients with indolent NHL

Conditions

Follicular Lymphoma

Marginal Zone Lymphoma

Study ID

NCT04669171

Start date

Jul 5, 2021

Status verified date

Jan, 2026

Completion date

May 30, 2034

Anticipated

Primary completion date

May 30, 2029

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

1. For inclusion in Cohorts 1 and 4 patients should have relapsed/refractory, biopsy-proven grade 1, 2 or 3A, FL or MZL, ECOG performance status 0 to 2, and have received at least one prior line of treatment. For inclusion in Cohort 4b the above applies except that patients with FL, and not patients with MZL, will be eligible for enrollment.
2. For inclusion in Cohort 2 patients should have newly diagnosed, previously untreated (radiotherapy as only prior treatment is allowed), biopsy-proven grade 1, 2 or 3A, FL or MZL. ECOG performance status 0 or 1, low tumor burden by Groupe d'Etude des Lymphomes Folliculaires (GELF) criteria, and not be in need of standard of care therapy according to the assessment of the treating physician.
3. For inclusion in Cohort 3 patients should have newly diagnosed, previously untreated (radiotherapy as only prior treatment is allowed), biopsy-proven grade 1, 2 or 3A, FL or MZL. ECOG performance status 0 or 1, low tumor burden by GELF criteria and be in need of therapy according to the assessment of the treating physician.
4. Patients with an age ≥ 18 years old.
5. Patients who are human leukocyte antigen (HLA)-A2 positive.
6. Patients should have radiologically measurable disease with a lymph node or tumor mass greater than or equal to 1.5 cm in at least one dimension.
7. Males or non-pregnant, non-lactating, females.
8. Patients willing and able to comply with the scheduled visits, treatment plan, laboratory tests, and other study procedures indicated in the protocol.
9. Patients having received the information sheet and who have provided written informed consent prior to any study-related procedures.

Exclusion Criteria:

1. Patients treated with dexamethasone > 2 mg/day or equivalent (i.e. 13 mg/day of prednisone, or 53 mg/day of hydrocortisone) within 14 days before the first EO2463 administration, unless required to treat an adverse event.
2. Patients with grade 3B FL or transformation to an aggressive lymphoma subtype.
3. Patients with only one prior treatment and a high-risk profile as defined by first progression of disease within 24 months of diagnosis (the exclusion is not applicable for patients with more than one prior line treatment).
4. Patients with prior exposure to EO2463.
5. Patients treated with immunotherapy (meaning immunostimulatory or immunosuppressive therapy; beside excluded, or allowed, compounds per other inclusion/exclusion criteria specifications), radionuclide therapy, radiotherapy, cytoreductive therapy, or received treatment with any other investigational agent within 28 days before the first EO2463 administration.
6. Patients to be included in Cohorts 1 and 4, and who have received rituximab or other B cell ablation therapy within 8 weeks of start of study treatment.
7. Patients to be included in Cohorts 4, who received prior CAR T-cell therapy and progressed within 6 months after this therapy.
8. Patients with abnormal laboratory values.
9. Patients with persistent Grade 3 or 4 toxicities.
10. Uncontrolled central nervous system (CNS) metastasis.
11. Other malignancy or prior malignancy with a disease-free interval of less than 3 years.
12. Patients with clinically significant disease.
13. Patients with suspected autoimmune or active autoimmune disorder or known history of an autoimmune neurologic condition (e.g. Guillain-Barré syndrome).
14. Patients with history of solid organ transplantation or allogeneic hematopoietic stem cell transplantation.
15. Pregnant and breastfeeding patients.
16. Patients with history or presence of human immunodeficiency virus and/or potentially active hepatitis B virus/hepatitis C virus infection.

Study Design

Enrollment

80 participants

Anticipated

Allocation

Non randomized

Intervention Model

Sequential

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Cohort 1

Safety Lead-In, Dose-Finding, Cohort, with a 3-by-3 design of EO2463 monotherapy for 6 weeks followed by addition of lenalidomide. Then, if applicable rituximab (depending on response with EO2463 + lenalidomide) will be added. Four to 18 previously treated patients with Follicular Lymphoma (FL) or Marginal Zone Lymphoma (MZL) were anticipated to be included based on safety findings.

experimental: Cohort 2

Anticipated approximatively 25 previously untreated patients with FL or MZL with an evaluation of EO2463 monotherapy (at the established dose in Cohort 1).

experimental: Cohort 3

Anticipated approximatively 6 previously untreated patients with FL or MZL with an evaluation of EO2463 (at the established dose in cohort 1) as monotherapy for 6 weeks followed by addition of rituximab if applicable (depending on response with EO2463 monotherapy).

experimental: Cohort 4

Anticipated approximatively 40 patients previously treated patients with FL (or MZL). Evaluation of EO2463 (at the established dose in Cohort 1) in combination with lenalidomide from day 1 and then with addition of rituximab.

Interventions

EO2463

Multiple dose of EO2463

lenalidomide

D1-21 of 4-weekly cycles

rituximab

Multiple doses of rituximab

Primary outcome measure

  • Phase 1: Recommended Phase 2 Dose | Adverse Events Assessment | [ Time Frame: Up to 24 months ]
  • Phase 2: Overall Response Rate [ Time Frame: Up to 24 months ]
  • Phase 2: Complete Response Rate [ Time Frame: Up to 24 months ]

Central Contacts and Locations

Locations

Dana Farber Cancer Institute

Recruiting

Boston, Massachusetts, United States, 02215

Mayo Clinic

Recruiting

Rochester, Minnesota, United States, 55905

University of Rochester Medical Center (URMC) - Wilmot Cancer Institute (WCI) (James P. Wilmot Cancer Center)

Recruiting

Rochester, New York, United States, 14642

University of Washington-Seattle Cancer Care Alliance

Recruiting

Seattle, Washington, United States, 98109

More Information

Sponsor

Enterome

Last update posted

Jan 30, 2026

Last verified

Jan, 2026

Keywords

  • Follicular Lymphoma
  • Marginal Zone Lymphoma
  • Rituximab
  • Lenalidomide
  • Peptide-based immunotherapy

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-08. This information was provided to ClinicalTrials.gov by Enterome on 2026-01-30.