This is a multicenter, single-arm, open label, study consisting of two cohorts. Cohort 2
explores the combination of copanlisib and pembrolizumab in patients with relapsed or
refractory NKTCL, who have received at least 1 prior systemic therapy. Cohort 2 will include
a phase 1 portion (cohort 2a) to determine the recommended phase 2 dose (RP2D) utilizing a
standard 3+3 design, followed by a phase II portion where patients will be treated at the
RP2D (cohort 2b). The primary endpoint for cohort 1 was progression-free survival; the
primary endpoint for cohort 2a will be to determine RP2D for the combination therapy; and
overall response rate at the end of 4 treatment cycles for cohort 2b. Patients will be
assessed for response with PET CT or CT every 12 weeks using the revised Cheson criteria.
Correlative endpoints will be exploratory and assess PD-1 expression on peripheral blood
lymphocytes; peripheral blood T-cell and NK-cell functional assays; PD-1 and PD-L1 expression
on tumor tissue; tumor infiltrating lymphocytes and gene expression panels using the
nanostring technology as prognostic and predictive biomarkers, as well as monitoring of
minimal residual disease via high-throughput sequencing of cell free tumor DNA, and exosome
analysis.
Patients with relapsed or refractory (RR) NK and T-cell Lymphoma (NKTCL), who have received
at least 1 prior systemic therapy, were enrolled in cohort 1. The study design for cohort 1
was a single arm phase II 2-stage design, to explore monotherapy with the PD-1 antibody
pembrolizumab (or MK-3475) given intravenously at a fixed dose of 200mg every 3 weeks for up
to 36 cycles. Enrollment to this cohort has been completed.
Inclusion Criteria:
1. Have a histologically or cytologically confirmed relapsed/refractory mature T-cell
lymphoma that has progressed after a minimum of 1 systemic therapy with any of the
following T-cell histologies:
- Peripheral T-cell NHL, not other wise specified (PTCL, NOS)
- Anaplastic large cell T-cell lymphoma (ALCL)
- Anaplastic lymphoma kinase positive or negative
- Angioimmunoblastic T-cell lymphoma
- Subcutaneous panniculitis like T-cell lymphoma
- Follicular T-cell lymphoma
- Nodal peripheral T-cell lymphoma with TFH phenotype
- Monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL)
- Enteropathy associated T-cell lymphoma
- Hepatosplenic T-cell lymphoma
- Extranodal NK/T-cell lymphoma, nasal type
- Unclassifiable PTCL
- Transformed cutaneous T-cell lymphoma (CTCL) to PTCL with systemic involvement
(not local skin transformation).
2. Be willing and able to sign written informed consent for the trial.
3. Be at least 18 years of age on day of signing informed consent.
4. Have measurable disease based as defined by at least one lesion that can be measured
in least 2 perpendicular dimensions and measures at least 1.5 cm in its long axis.
5. Have provided tissue from an archival tissue sample or newly obtained core or
excisional biopsy of a tumor lesion obtained within 28 days prior to study enrollment.
6. Have a performance status of 0, 1 or 2 on the ECOG Performance Scale.
7. Demonstrate adequate organ function as defined below, all screening labs should be
performed within 10 days of treatment initiation.
- Absolute neutrophil count (ANC) Greater than or equal to 1,500 /mcL, OR Greater
than or equal to1,000 /mcL if lymphomatous bone marrow involvement Patients with
documented marrow involvement may receive GCSF to achieve this value
- Platelets greater than or equal to 100,000 / mcL, OR greater than or equal to
75,000 / mcL if lymphomatous bone marrow involvement Patients with documented
marrow involvement may be transfused to this value.
- Hemoglobin greater than or equal to 9 g/dL or greater than or equal to 5.6 mmol/L
Patients with documented marrow involvement may be transfused to this value.
- Serum creatinine OR Measured or calculated creatinine clearance (GFR can also be
used in place of creatinine or CrCl) less than or equal to1.5 X upper limit of
normal (ULN) OR greater than or equal to 40 mL/min for subject with creatinine
levels greater than 1.5 X institutional ULN
- Serum total bilirubin less than 1.5 X ULN OR Direct bilirubin less than the ULN
for subjects with total bilirubin levels greater than 1.5 ULN
- AST (SGOT) and ALT (SGPT) less than or equal to 2.5 X ULN OR less than or equal
to 5 X ULN for subjects with liver involvement by lymphoma
- Lipase less than or equal to 1.5 X ULN
- International Normalized Ratio (INR) or Prothrombin Time (PT) less than or equal
to 1.5 X ULN unless subject is receiving anticoagulant therapy
- Activated Partial Thromboplastin Time (aPTT) less than or equal to 1.5 X ULN
unless subject is receiving anticoagulant therapy as long as PT or PTT is within
therapeutic range of intended use of anticoagulants
8. Female subjects of childbearing potential should be willing to use 2 methods of birth
control or be surgically sterile, or abstain from heterosexual activity for the course
of the study through 120 days after the last dose of study medication (Reference
Section 5.5.2). Subjects of childbearing potential are those who have not been
surgically sterilized or have not been free from menses for greater than 1 year.
9. Male subjects should agree to use an adequate method of contraception starting with
the first dose of study therapy through 120 days after the last dose of study therapy.
Exclusion Criteria:
1. Is currently participating in or has participated in a study of an investigational
agent or using an investigational device within 2 weeks of the first dose of
treatment.
2. Patients diagnosed with Adult T-cell Leukemia/Lymphoma (ATLL) or T-cell PLL
3. Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any
other form of immunosuppressive therapy within 7 days prior to the first dose of trial
treatment.
4. Has had a prior monoclonal antibody within 4 weeks prior to study Day 1 or who has not
recovered (i.e., worse than Grade 1 or at baseline) from adverse events due to agents
administered more than 4 weeks earlier.
5. Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy
within 2 weeks prior to study Day 1 or who has not recovered (i.e., ≤ Grade 1 or at
baseline) from adverse events due to a previously administered agent.
- Note: Subjects with worse than Grade 2 neuropathy are an exception to this
criterion and may qualify for the study.
- Note: If subject received major surgery, they must have recovered adequately from
the toxicity and/or complications from the intervention prior to starting
therapy.
6. Has a known additional malignancy that is progressing or requires active treatment.
Exceptions include basal cell carcinoma of the skin, squamous cell carcinoma of the
skin, or in situ cervical cancer that has undergone potentially curative therapy.
7. Has known active intraparenchymal lymphomatous central nervous system (CNS) lesions
and/or lymphomatous meningitis. Subjects with previously treated CNS involvement by
lymphoma may participate provided they are stable (without evidence of progression by
imaging for at least four weeks prior to the first dose of trial treatment and any
neurologic symptoms have returned to baseline), have no evidence of new or enlarging
brain lesions, and are not using steroids for at least 7 days prior to trial
treatment.
8. Has an active autoimmune disease requiring systemic treatment within the past 3 months
or a documented history of clinically severe autoimmune disease, or a syndrome that
requires systemic steroids or immunosuppressive agents. Subjects with vitiligo or
resolved childhood asthma/atopy would be an exception to this rule. Subjects that
require intermittent use of bronchodilators or local steroid injections would not be
excluded from the study. Subjects with hypothyroidism stable on hormone replacement or
Sjoegren's syndrome will not be excluded from the study.
9. Has evidence of interstitial lung disease or active, non-infectious pneumonitis.
10. Has an active infection requiring systemic therapy.
11. Has a history or current evidence of any condition, therapy, or laboratory abnormality
that might confound the results of the trial, interfere with the subject's
participation for the full duration of the trial, or is not in the best interest of
the subject to participate, in the opinion of the treating investigator.
12. Has known psychiatric or substance abuse disorders that would interfere with
cooperation with the requirements of the trial.
13. Is pregnant or breastfeeding, or expecting to conceive or father children within the
projected duration of the trial, starting with the pre-screening or screening visit
through 120 days after the last dose of trial treatment.
14. Has received prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, or
anti-Cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) antibody (including
ipilimumab or any other antibody or drug specifically targeting T-cell co-stimulation
or checkpoint pathways).
15. Has a known history of Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies).
16. Has known active Hepatitis B (e.g., HBsAg reactive) or Hepatitis C (e.g., HCV RNA
[qualitative] is detected).
17. Has received a live vaccine within 30 days prior to the first dose of trial treatment.
18. Cohort 2a: Has received an allogeneic stem cell transplant. For cohort 2b, patients
within the first 100 days of having undergone an allogeneic stem cell transplant will
be excluded. Otherwise, patients who have received an allogeneic stem cell transplant
are allowed as long as they have no evidence of active GVHD or are on
immunosuppressive therapy
19. Uncontrolled arterial hypertension despite optimal medical management
20. Uncontrolled Type I or II diabetes mellitus as deemed appropriate by the investigator.
Suggested guidelines for uncontrolled diabetes: HbA1c> 8.5%
21. Anti-arrhythmic therapy (beta blockers or digoxin are permitted)
22. Use of CYP3A4 inhibitors and inducers. Copanlisib is primarily metabolized by CYP3A4.
Therefore concomitant use of strong inhibitors of CYP3A4 (e.g., ketoconazole,
itraconazole, clarithromycin, ritonavir, indinavir, nelfinavir and saquinavir), and
strong inducers of CYP3A (e.g. rifampin, phenytoin, carbamazepine, phenobarbital, St.
John's Wort) are not permitted from Day -14 of Cycle 1 until the Safety follow up
visit. See Table in Appendix 5 for complete list
23. Concurrent diagnosis of pheochromocytoma
24. Arterial or venous thrombotic or embolic events such as cerebrovascular accident
(including transient ischemic attacks), deep vein thrombosis or pulmonary embolism
within 3 months before the start of study medication
25. Prior exposure to PI3K inhibitors, unless on PI3K inhibitor therapy more than 6 months
ago AND reason for discontinuation of prior PI3K inhibitor therapy was other than
progression or toxicity.
26. Patients with detectable CMV viremia are excluded
