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RecruitingLast updated: 22 January 2026

GOLSEEK-4: A study for people with relapsed or refractory follicular lymphoma to evaluate treatment with two targeted therapies compared to other treatmentsA Phase 3, Multicenter, Randomized, Open Label Study to Compare the Efficacy and Safety of Golcadomide in Combination With Rituximab (Golca + R) Vs Investigator's Choice in Participants With Relapsed/Refractory Follicular Lymphoma

Trial purpose

Medical clipboardCancer treatment

Tumor type

Blood Cancers Haematological

Age

People18+

Trial acronym

GOLSEEK-4

Clinical summary

Summary

This study is designed to compare the efficacy and safety of the small molecule targeted drug golcadomide when given with the targeted immunotherapy drug rituximab, vs. rituximab plus either chemotherapy or the targeted drug lenalidomide in people with relapsed or refractory follicular lymphoma (FL) who have received at least one line of prior systemic treatment. 

Eligible participants will be radomly allocated one of two treatment arms.

In the Experimental arm, participants will receive Golcadomide + Rituximab.

In the Active Comparator Arm, participants will receive Rituximab plus the Investigator's choice of either Lenalidomide, R-CHOP chemotherapy, or Bendamustine chemotherapy. 

Conditions

This trial is treating people with follicular lymphoma that is relapsed or refractory

Eligibility

Inclusion

  • Participant has histologically confirmed FL (Grade 1, 2, or 3a) as assessed by local pathology. Adequate fresh tumor biopsy tissue or archived tumor biopsy from the latest relapse if available with corresponding pathology report for retrospective central pathology confirmation of relapse, is required. Evaluation from fine needle aspirate is not permitted.
  • Relapsed or refractory disease:

    1. Relapsed FL is defined as relapse after an initial response of CR or PR to the most recent prior therapy.
    2. Refractory FL is defined as best response of SD or PD to the most recent prior therapy.
  • Eastern Cooperative Oncology Group (ECOG) 0-2 (ECOG 3 authorized if it is due to lymphoma and not comorbidities).
  • Participant must have positron emission tomography (PET)-positive disease with at least one PET-positive lesion and measurable disease on cross section imaging by CT, as defined by Lugano classification.
  • Participants with an indication for anti-lymphoma treatment as per investigator assessment based on modified Groupe d'Etude des Lymphomes Folliculaires (GELF) criteria.
  • Participant has received at least 1 or more prior lines of systemic therapy with one line consisting of a combination including an anti-CD20 monoclonal antibody (eg, rituximab, obinutuzumab) and an alkylating agent (eg, cyclophosphamide, bendamustine). Prior treatment with radiation therapy does not count as a line of therapy for eligibility.
  • Lab parameters:

    1. Absolute neutrophil count (ANC) ≥ 1,000 cells/mm3 (1.0 x 109 /L),
    2. PLT count ≥ 75,000 cells/mm3 (75 x 109 /L)
    3. Hb ≥ 7.5 g/dL
  • estimated glomerular filtration rate (eGFR) ≥ 30 ml/min/1.73m².
  • Serum aspartate transaminase (AST/SGOT) or alanine transaminase (ALT/SGPT) ≤ 2.5 x upper limit of normal (ULN). In case of documented liver involvement by lymphoma, ALT/SGPT and AST/SGOT must be ≤ 5.0× ULN.
  • Serum total bilirubin ≤ 1.5 × ULN (corresponding to mild dysfunction as per National Cancer Institute Organ Dysfunction Working Group [NCI ODWG] criteria). In case of documented liver involvement by lymphoma, serum total bilirubin must be ≤ 3.0 × ULN (corresponding to moderate dysfunction as per NCI ODWG criteria). For cases of Gilberts syndrome, serum total bilirubin≤ 5.0 × ULN
  • Adequate cardiac function for participants receiving anthracycline-based chemotherapy, defined as left ventricular ejection fraction (LVEF) ≥ 40% as assessed by echocardiogram (ECHO) as standard of care or multi-gated acquisition scan (MUGA)

Exclusion

  • Evidence or history of composite Diffuse large B-cell lymphoma (DLBCL) and FL or of transformed Non-Hodgkin Lymphoma (NHL) or any other indolent lymphoma.
  • Follicular large cell as per 5th World Health Organization (WHO) sub-classification (grade 3b FL per WHO 4th classification) or duodenal-type FL.
  • Participant has any significant medical condition, laboratory abnormality, or psychiatric illness that would prevent the participant from compliantly participating in the study based on Investigator's judgment.
  • Participant has any condition that confounds the ability to interpret data from the study based on Investigator's or Sponsor's judgment.
  • Presence or history of central nervous system (CNS) involvement by lymphoma.
  • History of stroke or intracranial hemorrhage within 6 months prior to enrollment.
  • Deep venous thrombosis/Pulmonary embolism within 1 month prior to enrollment.
  • Participants with a history of progressive multifocal leukoencephalopathy.
  • Participant has any other subtype of lymphoma.
  • Participant has persistent diarrhea or malabsorption ≥ Grade 2 (NCI CTCAE v5.0), despite medical management.
  • History of another primary malignancy that has not been in remission for ≥ 3 years except for non-invasive malignancies.
  • Participants who are refractory to both chemotherapies as well as lenalidomide, defined as:

    1. SD/progressive disease as best response to CHOP and Bendamustine based immunochemotherapy or a response to CHOP and Bendamustine based immunochemotherapy that lasted less than 6 months AND
    2. SD/progressive disease as best response to lenalidomide based regimen or a response to lenalidomide based regimen that lasted less than 6 months.
  • Other protocol-defined Inclusion/Exclusion criteria apply.

Inclusion

  • You have had treatment, but your cancer has come back (relapsed or recurrent).
  • You have had treatment but your cancer has gotten worse or has not responded to the treatment you have been given.
  • You have had a certain type of treatment or surgical procedure.

Exclusion

  • You have certain types of non-cancer medical conditions.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

Recruiting hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov, EU Clinical Trials Register *. View further details about this trial on the registry via the links below:

  • NCT06911502 *
  • 2024-519152-82 *
  • CA073-1003; U1111-1314-3909

Trial sponsor

Celgene

Scientific Title

A Phase 3, Multicenter, Randomized, Open Label Study to Compare the Efficacy and Safety of Golcadomide in Combination With Rituximab (Golca + R) Vs Investigator's Choice in Participants With Relapsed/Refractory Follicular Lymphoma

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