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Compound Evidence InstituteEvidence synthesis · established 2023Graded assessments of compounds, trials, methods and supply
Document set current to 30 July 2026
Compound monograph · evidence extract

Glutathione in immune modulation and adjunctive immunotherapy — evidence extract

No eligible study has been identified for Glutathione in immune modulation and adjunctive immunotherapy. The Institute records the question as not assessed and states what would change that.

Document identifier
CEI-MN-046/EV-IMMUNE-SUPPORT
Series
Evidence extract
Version
1.3
Published
06 May 2026
Last reviewed
06 May 2026
Next review
06 May 2028
Identifier
10.71829/cei.mono.46
Certainty
Not rated
Cycle
2026 Q2

§1Evidence extract: Immune modulation and adjunctive immunotherapy

§1.1Question and anchor outcome

Population
Pharmacological modification of innate or adaptive immune function, assessed by cell counts, functional assays and clinical infection or oncological endpoints.
Intervention
Glutathione, intravenous, nebulised, topical or oral; subcutaneous and intramuscular in research contexts
Comparator
As used in each contributing trial; reported per trial rather than pooled across comparator types
Anchor outcome
CD4 and CD8 counts

Additional outcomes the Institute extracts for this indication: Response to vaccination; Infection incidence; Tumour response where applicable.

§1.2Contributing trials

No trial has been identified for Glutathione in immune modulation and adjunctive immunotherapy. No certainty rating is issued where that is so, for the reason given at §1.3.

§1.3Why no certainty rating is issued

The Institute rates certainty in a body of evidence. Where no eligible study has been identified there is no such body, and the domain-by-domain assessment used elsewhere in this series is not rendered: an inconsistency judgement requires two estimates to be inconsistent with one another, and an imprecision judgement requires an interval. Neither exists here.

The outcome is therefore recorded as not assessed. It is listed in the certainty index under that heading rather than at the lowest rating, because a rating of very low certainty says that evidence was found and is weak, and that is not what has happened.

What would change this: a controlled study in the population stated at §1.1, reporting the anchor outcome, retrievable in a form the Institute can appraise. The evidence gaps recorded in the monograph at §9 state what such a study would need to measure.

§1.4What this extract does not establish

References cited on this page

References are numbered in order of first citation in this document. Each superscript in the text links to its entry below.

  1. D’Hondt M, Bracke N, Taevernier L, Gevaert B, Verbeke F, Wynendaele E, De Spiegeleer B. Related impurities in peptide medicines. Journal of Pharmaceutical and Biomedical Analysis 2014;101:2–30. doi:10.1016/j.jpba.2014.06.012 · PMID 25044089
  2. Manning MC, Chou DK, Murphy BM, Payne RW, Katayama DS. Stability of protein pharmaceuticals: an update. Pharmaceutical Research 2010;27(4):544–575. doi:10.1007/s11095-009-0045-6 · PMID 20143256
  3. United States Pharmacopeial Convention. General Chapter ⟨85⟩ Bacterial Endotoxins Test. United States Pharmacopeia — National Formulary (USP–NF) 2024;USP 2024 Issue 1. identifier not held by the Institute

Identifiers are reproduced only where the Institute holds them. Where a digital object identifier or PubMed identifier is not shown, the Institute has recorded the journal and year and has not constructed an identifier.

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