A Study of CDX-1127 (Varlilumab) in Patients with Select Solid Tumor Types or Hematologic Cancers

Overview

About this study

This is a study of CDX-1127, a therapy that targets the immune system and may act to promote anti-cancer effects. The study enrolls patients with hematologic cancers (certain leukemias and lymphomas), as well as patients with select types of solid tumors.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

Study closed to enrollment

Inclusion Criteria:

Among other criteria, patients must meet the following conditions to be eligible for the study:

  1. 18 years of age or older.
  2. Body Weight ≤ 120 kg.
  3. Histologic diagnosis of either a B-cell or T-cell hematologic malignancy known to express CD27 or one of the following solid tumors: metastatic melanoma, renal (clear) cell carcinoma, hormone-refractory prostate adenocarcinoma, ovarian cancer, colorectal adenocarcinoma or non-small cell lung cancer. For the solid tumor expansion cohorts, enrollment is limited to the following solid tumors: melanoma and renal cell carcinoma.
  4. Tumor must be recurrent or treatment refractory with no remaining alternative, approved therapy options, with the following exception: melanoma patients enrolled in the expansion phase must have previously received ipilimumab and, for patients with the BRAF V600E mutation, vemurafenib, or have been offered such therapies and refused, and patients must have progressive disease subsequent to previous therapies.
  5. Measurable or evaluable disease.
  6. Have adequate blood, bone marrow, liver and kidney function as determined by laboratory tests.
  7. If of childbearing potential (male or female), agree to practice an effective form of contraception during study treatment.
  8. Have little or no side effects remaining from prior cancer therapies.
  9. Provide written informed consent.

Exclusion Criteria:

Among other criteria, patients who meet the following conditions are NOT eligible for the study:

  1. Known prior primary or metastatic brain or meningeal tumors.
  2. Receiving treatment with immunosuppressive agents, including any systemic steroids.
  3. Active infection requiring systemic therapy, known HIV infection, or positive test for hepatitis B surface antigen or hepatitis C.
  4. Is being treated for anti-coagulation (i.e. warfarin) for reasons other than catheter patency.
  5. Women who are pregnant or lactating.
  6. Prior allogeneic bone marrow transplant.
  7. Autologous bone marrow transplant within 100 days of first dosing.
  8. Recent chemotherapy or other anti-cancer therapy (within 2 - 14 weeks depending on treatment type).
  9. Systemic radiation therapy within 4 weeks or prior focal radiotherapy within 2 weeks prior to first dosing.

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Stephen Ansell, M.D., Ph.D.

Closed for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office

855-776-0015

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Stephen Ansell, M.D., Ph.D.

Closed for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office

855-776-0015

More information

Publications

  • Purpose CD27, a costimulatory molecule on T cells, induces intracellular signals that mediate cellular activation, proliferation, effector function, and cell survival upon binding to its ligand, CD70. Varlilumab is a novel, first-in-class, agonist CD27 antibody that stimulates the CD27 pathway, which results in T-cell activation and antitumor activity in tumor models. This first-in-human, dose-escalation and expansion study evaluated the safety, pharmacology, and activity of varlilumab in patients with advanced solid tumors. Methods In a 3 + 3 dose-escalation design (n = 25), patients received a single dose of varlilumab (0.1, 0.3, 1.0, 3.0, or 10 mg/kg intravenously) with a 28-day observation, followed by up to five multidose cycles (one dose per week for 4 weeks), depending on tumor response. Expansion cohorts were initiated at 3.0 mg/kg in patients with melanoma (n = 16) and renal cell carcinoma (RCC; n = 15). Primary objectives were to assess the safety and the maximum tolerated and optimal biologic doses of varlilumab. Secondary objectives were to evaluate the pharmacokinetics, pharmacodynamics, and clinical antitumor activity of varlilumab. Results Exposure to varlilumab was linear and dose proportional across dose groups. Only one patient experienced a dose-limiting toxicity-grade 3 transient asymptomatic hyponatremia at the 1.0-mg/kg dose level. Treatment-related adverse events were generally grade 1 or 2 in severity. Evidence of biologic activity consistent with CD27 stimulation-chemokine induction, T-cell stimulation, regulatory T cell depletion-was observed at all dose levels. A patient with metastatic RCC experienced a partial response (78% shrinkage, progression-free survival > 2.3 years). Eight patients experienced stable disease > 3 months, including a patient with metastatic RCC with progression-free survival of > 3.9 years. Conclusion Dose escalation of varlilumab to 10 mg/kg was well tolerated without identification of a maximum tolerated dose. Varlilumab was biologically and clinically active. Read More on PubMed

Study Results Summary

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Supplemental Study Information

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CLS-20115788

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