A Study of PEGylated Recombinant Human Hyaluronidase (PEGPH20) With Pembrolizumab in Participants With Selected Hyaluronan High Solid Tumors

Recruiting in Palo Alto (17 mi)

+27 other locations

Age: 18+

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Phase 1

Waitlist Available

Sponsor: Halozyme Therapeutics

No Placebo Group

Breakthrough Therapy

Trial Summary

What is the purpose of this trial?

This is a Phase 1b study evaluating a combination of PEGPH20 and pembrolizumab in hyaluronan-high (HA-high) participants with relapsed/refractory non-small cell lung cancer (NSCLC) and HA-high participants with relapsed/refractory gastric adenocarcinoma (GAC).

Eligibility Criteria

Inclusion Criteria

Dose Expansion: Histologically confirmed and documented, previously untreated or treated stage IIIB or IV NSCLC having failed no more than 1 previous platinum containing chemotherapy regimen for locally-advanced or metastatic disease or relapsed/refractory locally advanced or metastatic gastric adenocarcinoma having failed no more than 2 previous chemotherapy regimens for locally advanced or metastatic disease. Participants with NSCLC who are known to be epidermal growth factor receptor (EGFR)-mutation positive must have received an EGFR inhibitor and participants known to be anaplastic lymphoma kinase (ALK)-mutation positive must have received an ALK inhibitor.

• For participants in the dose expansion portion of the study, it is mandatory that available archived tumor tissue in formalin-fixed.

paraffin-embedded (FFPE) block or minimum 10-15 unstained consecutive core biopsy slides from 1 archival block that meet specific tissue requirements are available.

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Treatment Details

Interventions

PEGylated Recombinant Human Hyaluronidase (PEGPH20) (Enzyme)
Pembrolizumab (Checkpoint Inhibitor)

Participant Groups

2Treatment groups

Experimental Treatment

Group I: NSCLC: PEGPH20 1.6 µg/kg/2.2 µg/kg + PembrolizumabExperimental Treatment2 Interventions

Dose escalation part: Participants with relapsed/refractory Stage IIIB or IV non-small cell lung cancer (NSCLC) will receive PEGPH20 1.6 µg/kg or 2.2 µg/kg on Day 1, Day 8 and Day 15 of each 21-day cycle (i.e. 3 doses/cycle) and pembrolizumab 2 mg/kg every 21 days on Day 1 of each cycle (i.e. 1 dose/cycle), 4-6 hours after the completion of PEGPH20 administration. Dose expansion part: Participants with relapsed/refractory Stage IIIB or IV NSCLC will receive PEGPH20 2.2 µg/kg on Day 1, Day 8 and Day 15 of each 21-day cycle and pembrolizumab 200 mg on Day 1 of each cycle, 4-6 hours after the completion of PEGPH20 administration. Treatment in both phases of the study will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity (maximum exposure: 46 weeks).

Group II: GAC: PEGPH20 1.6 µg/kg/2.2 µg/kg + PembrolizumabExperimental Treatment2 Interventions

Dose escalation part: Participants with relapsed/refractory locally advanced or metastatic gastric adenocarcinoma (GAC) will receive PEGPH20 1.6 micrograms/kilogram (µg/kg) or 2.2 µg/kg on Day 1, Day 8 and Day 15 of each 21-day cycle (i.e. 3 doses/cycle) and pembrolizumab 2 milligrams/kilogram (mg/kg) every 21 days on Day 1 of each cycle (i.e. 1 dose/cycle), 4-6 hours after the completion of PEGPH20 administration. Dose expansion part: Participants with relapsed/refractory locally advanced or metastatic GAC will receive PEGPH20 2.2 µg/kg on Day 1, Day 8 and Day 15 of each 21-day cycle and pembrolizumab 200 mg on Day 1 of each cycle, 4-6 hours after the completion of PEGPH20 administration. Treatment in both phases of the study will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity (maximum exposure: 60 weeks).