Open-Label, Single-Arm Phase 2 Study of Nogapendekin Alfa Inbakicept, PD-L1 t-haNK, Bevacizumab and Randomized Phase 2B Study of Nogapendekin Alfa Inbakicept, Bevacizumab, and Tumor Treatment Fields With or Without PD-L1 t-haNK in Participants With Recurrent or Progressive Glioblastoma

Summary

This study consists of 2 portions. The phase 2 portion is an open-label, single-arm study to evaluate the safety and efficacy of NAI, PD-L1 t-haNK, and bevacizumab combination therapy in participants with recurrent or progressive GBM. The phase 2B portion is an open-label, randomized study to evaluate the efficacy and safety for the following 2 experimental arms in participants with recurrent or progressive GBM: NAI, bevacizumab, and TTFields combination therapy (Arm A) or NAI, PD-L1 t-haNK, bevacizumab, and TTFields combination therapy (Arm B). Phase 2 Treatment for all enrolled participants will consist of repeated cycles of 28 days for a maximum treatment period of 76 weeks (19 cycles) as follows: Every 2 weeks (Days 1 and 15 of a 28-day cycle) Fourteen (14) participants were enrolled in the phase 2 portion of this study as of the date of this v02 protocol. No additional participants will be administered therapy in phase 2. Phase 2B Participants will be randomized 1:1 to 1 of 2 experimental arms (Arm A or Arm B). Treatment for all enrolled participants will consist of repeated 8-week cycles for a maximum treatment period of up to 80 weeks (10 cycles). Experimental Arm (A): Every 2 weeks (Days 1, 15, 29, and 43 of an 8-week cycle) Up to twenty (20) participants will be randomized in phase 2B (up to 10 participants/arm. Duration of Treatment: Participants will receive study treatment for up to 76 weeks during phase 2 (up to 19 repeated 28-day cycles) and for up to 80 weeks (up to 10 repeated 8-week cycles) during phase 2B or until they report unacceptable toxicity (not corrected with dose reduction), withdraw consent, or if the Investigator feels it is no longer in the participant's best interest to continue treatment. Treatment may also be discontinued if the participant has confirmed PD per iRANO, unless the participant is clinically stable and is considered potentially deriving benefit per Investigator's assessment. Duration of Follow-up: Participants who discontinue study treatment should remain in the study for follow-up. Participants should be followed for collection of survival status, posttreatment therapies (phase 2 and phase 2B), and medical history (phase 2B only) every 12 weeks (± 2 weeks) for the first 2 years then yearly thereafter for an additional 3 years. The maximum duration of follow-up is 5 years (260 weeks).

Eligibility

Age range

18+ years

Sex

All

Healthy volunteers

No

Interventions

• Drug
  Bevacizumab

  Participants will receive 10mg/kg of Bevacizumab intravenously (IV) on Day 1 and Day 15 of each repeated cycle of treatment.

• Drug
  PD-L1 t-haNK

  Participants will receive PD-L1 t-haNK (\~2 × 109 cells/infusion) intravenously (IV) on Day 1 and Day 15 of each repeated cycle of treatment.

• Drug
  N-803

  Participants will receive 1mg subcutaneously (SC) on Day 1 and Day 15 of each repeated cycle of treatment.

• Device
  Tumor Treating Fields (TTFields, 200 kHz)

  TTFields (OPTUNE Gio®), for the treatment of newly diagnosed and/or recurrent GBM, is a portable battery or power supply operated device which produces alternating electrical fields, called tumor treatment fields ("TTFields") within the human body/brain. TTFields are applied to the patient by electrically-insulated surface transducer arrays. TTFields disrupt the rapid cell division exhibited by cancer cells. TTFields is comprised of two main components: (1) an Electric Field Generator and (2) INE Insulated Transducer Arrays (the transducer arrays). Patients carry the device in an over-the-shoulder bag or backpack and receive continuous treatment without changing their daily routine.

Locations (4)