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Terminated Phase 2 Interventional

Phase 2 Study of Imprime PGG & Pembrolizumab in Subjects With Adv SCCHN Who Failed Pembro Monotherapy or Experiencing SD

ClinicalTrials.gov ID: NCT03246685

Public ClinicalTrials.gov record NCT03246685. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 11:10 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multicenter, Open-label, Phase 2 Study of Imprime PGG & Pembrolizumab in Subjects With Adv Squamous Cell Carcinoma of H&N (SCCHN) Who Failed Pembro Monotherapy or Experiencing SD Following Completion of 4 to 8 Cycles of Pembro Monotherapy

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Objective: To determine the Overall Response Rate (ORR) to Imprime PGG + pembrolizumab in subjects with advanced Squamous Cell Carcinoma of the Head and Neck (SCCHN) Safety: To characterize the safety of Imprime PGG + pembrolizumab given in combination Hypothesis: Restore (for subjects who have failed pembrolizumab mono therapy) or enhance (for subjects who actively experiencing SD) sensitivity to checkpoint inhibitors (CPI) by appropriate and effective stimulation of the subject's innate and adaptive immune systems by combining Imprime PGG with pembrolizumab. The study will require documenting at least 5 objective responses among the 38 subjects enrolled who have failed prior pembrolizumab monotherapy and at least 17 objective responses among the 49 subjects enrolled who are actively experiencing stable disease following at least 4 cycles (but no more than 8 cycles) of pembrolizumab monotherapy.

Study identification

NCT ID
NCT03246685
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
HiberCell, Inc.
Industry
Enrollment
1 participant

Conditions and interventions

Interventions

Biological · Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 7, 2017
Primary completion
Apr 12, 2018
Completion
Apr 12, 2018
Last update posted
Dec 13, 2018

2017 – 2018

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Northwestern Medical Specialties, PLLC Tacoma Washington 98405

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03246685, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Dec 13, 2018 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03246685 live on ClinicalTrials.gov.

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