Evidence map›Paper›PMID 26975418›Full record

Trial reportClinical colorectal cancer2016

A Phase II Efficacy and Safety, Open-Label, Multicenter Study of Imprime PGG Injection in Combination With Cetuximab in Patients With Stage IV KRAS-Mutant Colorectal Cancer.

Neil H Segal, Purvi Gada, Neil Senzer, Michele A Gargano, Myra L Patchen, Leonard B Saltz

Open access · greenAbstract readClinical Trial, Phase IIMulticenter Study
In one paragraph

Trial report in Clinical colorectal cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.9field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
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  4. Role of Trained Immunity in Heath and Disease.Current cardiology reports · 2025
    Review
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  6. Article
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  12. Review
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  15. Review
  16. Tuberculosis-Cancer Parallels in Immune Response Regulation.International journal of molecular sciences · 2020
    Review
  17. Review
  18. Yeast-Derived β-Glucan in Cancer: Novel Uses of a Traditional Therapeutic.International journal of molecular sciences · 2019
    Review
  19. Therapeutic targeting of trained immunity.Nature reviews. Drug discovery · 2019
    Review
  20. Monoclonal antibody-mediated killing of tumour cells by neutrophils.European journal of clinical investigation · 2018
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 1 country.

Neil H SegalMemorial Sloan Kettering Cancer Center, New York, NY. Electronic address: segaln@mskcc.org.
Purvi GadaUniversity of Minnesota, Minneapolis, MN.
Neil SenzerMary Crowley Cancer Research Center, Dallas, TX.
Michele A GarganoBiothera, Eagan, MN.
Myra L PatchenBiothera, Eagan, MN.
Leonard B SaltzMemorial Sloan Kettering Cancer Center, New York, NY.
Memorial Sloan Kettering Cancer Center · USBiothera (United States) · USMary Crowley Cancer Research Center · USProThera Biologics (United States) · USUniversity of Minnesota · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

backgroundImprime PGG (β(1,6)-[poly-(1,3)-D-glucopyranosyl]-poly-β(1,3)-D-glucopyranose) is an innate immune cell modulator that primes neutrophils and monocytes/macrophages to exert antitumor activity against complement opsonized tumor cells. In patients with KRAS-mutant colorectal cancer (CRC), cetuximab alone is ineffective; however, it can bind to tumor cells and induce opsonization for recognition by Imprime PGG-bound innate immune cells. The primary objective of this study was to determine the antitumor activity of Imprime PGG in combination with cetuximab in patients with KRAS-mutant metastatic CRC. PATIENTS AND

methodsThe study had a 2-stage Simon optimal design with 80% power to detect a target objective response rate (ORR) of ≥10% at a 10% significance level. Patients received weekly Imprime PGG (4 mg/kg) and cetuximab (loading dose, 400 mg/m(2), then 250 mg/m(2)) intravenously. The primary end point was ORR; secondary end points included duration of response (DOR), time to progression (TTP), overall survival (OS), disease control rate, progression-free survival, and safety. Stage 1 of the study was to enroll 17 evaluable patients.

resultsOne partial response (5.6%) was observed among 18 patients enrolled into stage 1. Median DOR was 4.2 months, TTP 2.7 months, and OS 6.6 months. Overall, observed toxicity was as expected from cetuximab alone. The most common (≥20%) adverse events related to Imprime PGG were fatigue (7 patients; 38.9%), infusion reaction (4 patients; 22.2%), and headache (4 patients; 22.2%). There was no Grade 4 toxicity nor treatment-related deaths.

conclusionImprime PGG in combination with cetuximab treatment in patients with KRAS-mutant CRC showed compelling, albeit modest, clinical activity. This study provides proof of principle that Imprime PGG, in combination with complement-activating antibodies, is associated with clinical activity.

Indexed as

AdultAgedAntineoplastic Combined Chemotherapy ProtocolsCetuximabColorectal NeoplasmsDisease-Free SurvivalFemaleGlucansHumansImmunotherapyKaplan-Meier EstimateMaleMiddle AgedMutationNeoplasm StagingProto-Oncogene Proteins p21(ras)CetuximabepiglucanGlucansKRAS protein, humanProto-Oncogene Proteins p21(ras)AntibodyComplementEpidermal growth factor receptorImmuneβ-glucan

Identifiers

PMID26975418
PMCPMC5621519
OpenAlexW2255811425

What OpenQuestion holds

Textmetadata
LicenceTDM
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.