About this trial

This is a Phase 2b, randomized, open label study to assess the safety and efficacy of DPX-Survivac and pembrolizumab, with and without low-dose cyclophosphamide (CPA) in subjects with relapsed or refractory DLBCL.

Eligibility criteria

Qualifiers

Adults ≥ 18 years of age who are willing and able to provide written informed consent

Have an ECOG performance status of ≤ 1. Subjects with an ECOG performance status of 2 may be enrolled with Medical Monitor approval.

Pathologically confirmed diagnosis of DLBCL, as defined by the 2016 World Health Organization classification including DLBCL NOS high-grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements, Epstein-barr virus (EBV) positive DLBCL, and T cell rich B cell lymphoma (TCRBCL). Subjects with DLBCL transformed from indolent lymphoma (except for Richter's transformation) are eligible.

Subjects must have progressive disease following at least two (2) lines of prior systemic therapy for DLBCL; prior treatment must have included an anthracycline and rituximab (or another CD20-targeted agent).

Disqualifiers

Primary CNS lymphoma or active secondary CNS involvement and/or lymphomatous meningitis

Chemotherapy, immunotherapy, major surgery, or investigational agent treatment within 28 days of D0 or 5 half-lives, whichever is shorter

Radiotherapy within 14 days of day 0

Autologous stem cell transplant (ASCT) within ˂100 days prior to D0

Trial design

Treatments tested in this trial

  • DPX-Survivac
  • Pembrolizumab
  • CPA

Treatment groups

102 Participants
are divided into 2 treatment groups

Locations

50
Australia
Royal Adelaide Hospital5000, AdelaideSouth Australia, Australia
Box Hill Hospital3128, MelbourneVictoria, Australia
Epworth Freemasons Hospital3002, MelbourneVictoria, Australia
Westmead Hospital2145, Westmead Australia

Sponsors and collaborators

ImmunoVaccine Technologies, Inc. (IMV Inc.)

Lead sponsor

Merck Sharp & Dohme LLC

Collaborator