Tazemetostat Plus CHOP in 1L T-cell Lymphoma

Registration Number
NCT06692452
Lead Sponsor
Eric Jacobsen, MD
Brief Summary

This research is being done to evaluate tazemetostat in combination with CHOP (cyclophosphamide, doxorubicin, vincristine, prednisone) chemotherapy as a possible treatment for peripheral T-Cell Lymphoma (PTCL).

The name of the study drugs involved in this study are:

* Tazemetostat (a type of inhibitor for Enhancer of Zeste Homolog 2 (EZH2))
...

Detailed Description

This is a phase 2 open-label study of Tazemetostat plus CHOP chemotherapy to find out if the addition of Tazemetostat is more beneficial than the usual approach for PTCL, which is CHOP or CHOEP (CHOP with Etoposide) with a potential standard-of-care autologous stem cell transplant. Tazemetostat works to slow down and decrease specific proteins that may be ov...

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
All
Target Recruitment
24
Inclusion Criteria
  • Participants must have histologically or cytologically confirmed peripheral T cell lymphoma of one of the following subtypes: PTCL-NOS, Follicular helper T-cell lymphoma (ICC 2022) or Nodal T-follicular helper (TFH) cell lymphoma by (WHO 2022) which includes follicular helper T-cell lymphoma, AITL and follicular helper T cell lymphoma, follicular type, EATL, MEITL. All pathology will be reviewed at BWH. BWH review is not required prior to enrollment and patients may be enrolled based upon local pathology analysis. Ten blank slides will be required from outside tumor biopsy for correlative studies.

  • No prior treatment for T NHL with the exception of one cycle of CHOP or CHOEP or 7 days of corticosteroids at a dose of up to prednisone 60 mg or equivalent for palliation of disease related symptoms so long as the corticosteroids are discontinued prior to tazemetostat prephase or cycle 1 of treatment if not receiving the prephase.

  • At least one bi-dimensionally measurable lesion, defined as >1.5 cm in its longest dimension as measured by CT.

  • Age ≥18 years.

  • ECOG performance status ≤2 (Karnofsky ≥60%, see Appendix A).

  • Participants must have adequate organ and marrow function as defined below:

    • absolute neutrophil count ≥1,000/mcL (750 mcl if bone marrow involvement with lymphoma)
    • platelets ≥75,000/mcL (25,000 if bone marrow involvement with lymphoma)
    • total bilirubin ≤ institutional upper limit of normal (ULN)
    • AST(SGOT)/ALT(SGPT) ≤3 × institutional ULN
    • creatinine ≤ 1.5 x institutional ULN OR
    • glomerular filtration rate (GFR) ≥60 mL/min/1.73 m2
  • Because the effects of tazemetostat on human immunodeficiency virus (HIV)-infected participants and anti-retroviral therapy is unknown, patients with known HIV infection are not eligible for this trial.

  • For participants with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated.

  • Participants with a history of hepatitis C virus (HCV) infection must have been treated and cured. Participants with HCV infection who are currently on treatment, are not eligible.

  • Left ventricular ejection fraction of > 50% as assessed by echocardiography or multi-gate acquisition (MUGA) scan.

  • The effects of tazemetostat on the developing human fetus are unknown. For this reason and because other therapeutic agents used in this trial are known to be teratogenic, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. For women of childbearing potential, a negative serum pregnancy test result within 7 days prior to commencement of dosing. Women who are considered not to be of childbearing potential are not required to have a pregnancy test.

  • Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 3 months after completion of tazemetostat administration.Women should use effective contraceptive methods beginning ≥28 days prior to initiating, during tazemetostat treatment, and for at least 6 months after the final dose of tazemetostat

  • Ability to understand and the willingness to sign a written informed consent document.

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Exclusion Criteria
  • Participants who have had chemotherapy for T cell lymphoma prior to entering the study (except 1 cycle of CHOP/CHOEP as noted above). Prior radiotherapy may be allowed after discussion with the sponsor-investigator so long as the area radiated was not the only measurable site of disease.

  • Participants who are receiving any other investigational agents.

  • Patients with known central nervous system involvement with lymphoma

  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to tazemetostat or other agents used in study.

  • Prior organ transplantation.

  • Current motor or peripheral neuropathy with grade >1.

  • History of other malignancy that could affect compliance with the protocol or interpretation of results. Exceptions include:

    • Patients with a history of curatively treated basal or squamous cell carcinoma or melanoma of the skin or in situ carcinoma of the cervix at any time prior to the study are eligible.
    • Patients with any malignancy appropriately treated with curative intent and the malignancy has been in remission without treatment for > 2 years prior to enrollment are eligible.
    • Patients with low-grade, early-stage prostate cancer (Gleason score 6, Stage 1 or 2) with no requirement for therapy at any time prior to study are eligible.
  • Uncontrolled intercurrent illness.

  • Pregnant women and women intending to become pregnant are excluded from this study because chemotherapeutic agents used in this study have the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with tazemetostat, breastfeeding should be discontinued if the mother is treated with tazemetostat.

  • Evidence of significant, uncontrolled, concomitant diseases that could affect compliance with the protocol or interpretation of results, including significant cardiovascular disease (such as New York Heart Association Class III or IV cardiac disease, myocardial infarction within the last 6 months, unstable arrhythmias, or unstable angina)

  • Recent major surgery (within 4 weeks prior to the start of Cycle 1), other than for diagnosis

  • Known active bacterial, viral, fungal, mycobacterial, parasitic, or other infection (excluding fungal infections of nail beds) at study enrollment or significant infections within 2 weeks before the start of Cycle 1.

  • Inability to swallow pills.

  • Because no dosing or adverse event data are currently available on the use of tazemetostat in combination with CHOP in participants <18 years of age, children are excluded from this study, but will be eligible for future pediatric trials.

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Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Tazemetostat + CHOP Therapy + Transplant ElectedTazemetostatEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant ElectedDoxorubicinEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant ElectedVincristineEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant ElectedPrednisoneEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant ElectedCytoxanEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant ElectedCarmustineEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant ElectedEtoposideEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant ElectedCytarabineEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant ElectedMelphalanEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Bone marrow biopsy and Pet-CT scan at end of Cycle 6 * Maintenance Period: * Day 0: autologous stem cell transplant with BiCNU, Etoposide, Cytarabine, and Melphalan (BEAM) * Day 100: PET-CT scan * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant Not ElectedTazemetostatEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Pet-CT scan at end of Cycle 6. * Maintenance Period: * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily. * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant Not ElectedDoxorubicinEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Pet-CT scan at end of Cycle 6. * Maintenance Period: * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily. * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant Not ElectedVincristineEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Pet-CT scan at end of Cycle 6. * Maintenance Period: * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily. * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant Not ElectedPrednisoneEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Pet-CT scan at end of Cycle 6. * Maintenance Period: * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily. * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Tazemetostat + CHOP Therapy + Transplant Not ElectedCytoxanEnrolled participants will complete: * Baseline visit * Prephase Period: Days -14 through -1: Predetermined dose of Tazemetost 2x daily * Induction Period: Cycles 1 through 6 (21 day cycles): * Cycle 1 Day 1: tumor biopsy and CT scan * Day 1: Predetermined dose of Cyclophosphamide once, Doxorubicin once, and Vincristine once * Days 1 through 5: Predetermined dose of Prednisone 1x daily * Days 2 through 21: Predetermined dose of Tazemetost 2x daily * Prior to Cycle 4 Day 1: Pet-CT scan * Note, treatment will stop if participants do not respond to the drugs after the first 3 cycles * Pet-CT scan at end of Cycle 6. * Maintenance Period: * Cycles 1 through 6 (28 day cycles): --Days 1 through 28: Predetermined dose of Tazemetost 2x daily. * After Cycle 3: CT scan * Cycle 4 Day 1: CT scan * End of treatment visit * Follow up is for 4 years
Primary Outcome Measures
NameTimeMethod
Complete Response Rate (CRR)Up to 18 weeks

CRR rate was defined as the proportion of participants who achieved CR during the first six cycles of treatment.

Secondary Outcome Measures
NameTimeMethod
Median Overall Survival (OS)Up to 5.5 years

OS based on Kaplan-Meier methodology is defined as the time from registration to death due to any cause, or censored at date last known alive.

Median Progression Free Survival (PFS)Up to 1.5 years

PFS based on the Kaplan-Meier method is defined as the time from first study treatment to the first occurrence of disease progression or relapse as assessed or death from any cause, whichever occurs earlier. Confirmation of progression by biopsy is preferred.

Duration of Response (DOR)Up to 1.5 years

The duration of overall response is defined as the time from first documentation of PR to CR until first documentation of progression or relapse by clinical or radiology parameters. Confirmation of progression by biopsy is preferred. Participants without events reported are censored at the last disease evaluation.

Grade 3-5 Treatment-Related Toxicity RateUp to 3.5 years

The percentage of participants who experienced a maximum grade 3-5 treatment-related adverse event based on the Common Toxicity Criteria for Adverse events Version 5.0 (CTCAEv5) as reported on case report forms.

Transplant RateUp to 1.5 years

Transplant rate defined as the proportion of participants who are deemed transplant eligible and nominated by the treating investigator before initiation of protocol therapy to undergo consolidation transplant, who receive at least one dose of protocol-based therapy, and who then successfully proceed to transplant.

Mobilization Success RateUp to 1.5 years

Mobilization success rate is defined as the proportion of participants nominated by the treating investigator before initiation of protocol therapy to undergo consolidation transplant, in whom stem cell mobilization is attempted and who mobilize a sufficient number of stem cells to proceed to stem cell transplant irrespective of actually proceeding to transp...

Trial Locations

Locations (3)

Dana-Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Beth Israel Deaconess Medical Center

🇺🇸

Boston, Massachusetts, United States

Brigham and Women's Hospital

🇺🇸

Boston, Massachusetts, United States

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