Evidence mapPaperPMID 33019813Full record

Trial reportAIDS research and human retroviruses2021

Effects of Brief Adjunctive Metformin Therapy in Virologically Suppressed HIV-Infected Adults on Polyfunctional HIV-Specific CD8 T Cell Responses to PD-L1 Blockade.

Glen M Chew, Ana Joy P Padua, Dominic C Chow, Scott A Souza, Danielle M Clements, Michael J Corley, Alina P S Pang, Marissa M Alejandria, Mariana Gerschenson, Cecilia M Shikuma and 1 more

Open access · greenAbstract readClinical Trial
In one paragraph

Trial report in AIDS research and human retroviruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 29% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Metformin Enhances Antibody-Mediated Recognition of HIV-Infected CD4bioRxiv : the preprint server for biology · 2024
    Article
  7. Metformin and Its Immune-Mediated Effects in Various Diseases.International journal of molecular sciences · 2023
    Review
  8. 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

11 authors at 2 institutions in 2 countries.

Glen M ChewJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
Ana Joy P PaduaCollege of Medicine, University of the Philippines, Manila, Philippines.
Dominic C ChowJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
Scott A SouzaJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
Danielle M ClementsJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
Michael J CorleyJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
Alina P S PangJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
Marissa M AlejandriaCollege of Medicine, University of the Philippines, Manila, Philippines.
Mariana GerschensonJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
Cecilia M ShikumaJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
Lishomwa C NdhlovuJohn A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA.
University of Hawaiʻi at Mānoa · USUniversity of the Philippines Manila · PH

Funding

Research Capacity CoreU54MD007601 · UNIVERSITY OF HAWAII AT MANOA · 2025 to 2025
$5.0M
Non-canonical NF-kB signaling in diabetic kidney diseaseP20GM113134 · UNIVERSITY OF HAWAII AT MANOA · 2025 to 2025
$2.7M
NHLBI NIH HHS K01 HL140271NIGMS NIH HHS P20 GM113134NIMHD NIH HHS U54 MD007601
6 · The paper itself

Abstract

Targeting inhibitory immune checkpoint receptor pathways has shown remarkable success in improving anticancer T cell responses for the elimination of tumors. Such immunotherapeutic strategies are being pursued for HIV remission. Metformin has shown favorable clinical outcomes in enhancing the efficacy of programmed cell death-1 (PD-1) blockade and restoring antitumor T cell immunity. Furthermore, monocytes are known to be a strong predictor of progression-free survival in response to anti-PD-1 immunotherapy. In a single-arm clinical trial, we evaluated the immunological effects over an 8-week course of metformin therapy in seven euglycemic, virally suppressed HIV-infected participants on combination antiretroviral therapy (cART). We assessed changes in peripheral HIV-Gag-specific T cell responses to immune checkpoint blockade (ICB) with anti-PD-L1 and anti-T cell immunoreceptor with immunoglobulin and ITIM domain (TIGIT) monoclonal antibodies (mAbs) and changes in CD8 T cell and monocyte subsets using flow cytometry. Study participants were all male, 71% (5/7) Caucasian, with a median age of 61 years, CD4 count of 739 cells/μL, and plasma HIV RNA of <50 copies/mL on stable cART for >1 year.

Indexed as

HIV InfectionsMetforminB7-H1 AntigenCD4 Lymphocyte CountCD8-Positive T-LymphocytesHumansMaleMiddle AgedB7-H1 AntigenMetforminHIVimmunotherapymetforminPD-1PD-L1T cells

Identifiers

PMID33019813
PMCPMC7864091
OpenAlexW3091265695

What Socratic holds

Textmetadata
Read underepoch 390

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 Socratic graph.