Human study PLS-00203
Biochemical characterization of thymic hormones in thymoma tissues.
Version 1 · published November 8, 2026 · evidence through November 8, 2026 · research snapshot 2026.1.1 · methodology ev-1 · Automated assessment by AI (claude-opus-5-5 and claude-sonnet-5-5), not reviewed by a person.
Only the abstract was available. Essential methods may be missing, which limits what can be judged.
Reports of this study
Every publication, registration and abstract describing this one study. Participants are counted once.
- Biochemical characterization of thymic hormones in thymoma tissues.primary · Thymus · 1990-03-01 · PMID 2333664
Design and participants
- Design
- Other design
- Population
- Three patients with thymic tumours (benign thymoma, invasive malignant thymoma, undifferentiated carcinoma) whose thymic tissue was biochemically analysed.
- Conditions
- Thymoma, Thymic carcinoma
- Planned enrollment (registry)
- Not reported
- Enrolled
- 3
- Randomized
- Not reported
- Completed follow-up
- Not reported
- Funding
- The publication type indicates non-U.S. government research support. The funder is not named.
Intervention and comparator
What each group received. Related peptides, analogs and combinations are never treated as the compound itself.
What the authors reported
As stated in the sources. This is the authors’ account, not Peptide Library’s assessment.
Adverse events
None reported. That is not evidence of safety, and how safety was monitored isn’t described.
The authors concluded (paraphrased): Thymic hormone content appeared to relate to thymoma type and differentiation. Benign thymoma contained both hormones, invasive malignant thymoma only Tβ4, and carcinoma neither. The authors suggest hormone content could aid pathological diagnosis.
Peptide Library’s assessment
An automated assessment, made by AI separately from the authors’ conclusions and not reviewed by a person. How risk of bias is assessed.
Limitations
- other: Endogenous Tβ4 was measured in tumour tissue. The compound was never administered, so the study gives no evidence on its effects or safety.
- small or imprecise: Tissue came from only three thymoma patients, each with a different tumour type.
- abstract only: Only the PubMed abstract is available, so methods and full results cannot be checked.
- no control group: Three tissue samples were compared descriptively. There is no control group and no intervention.
- inappropriate endpoint: Endogenous tissue peptide content is a biochemical measure. It is not a clinical outcome of administering the compound.
No risk-of-bias assessment has been published for this study’s results.
Claims this study informs
- Improves dry eye signs and symptoms: not eligible (not primary study) for “Ocular discomfort and corneal staining”
- Is safe for human administration: not eligible (not primary study) for “Adverse events, serious adverse events and discontinuations”
Where each value comes from
- author_conclusion: PMID 2333664, abstract (sentences 10-12) · extracted by AI (automated, not verified by a person) · abstract only
- design: PMID 2333664, abstract (sentences 3-6) · extracted by AI (automated, not verified by a person) · abstract only
- funding: PMID 2333664, title (publication types) · extracted by AI (automated, not verified by a person) · abstract only
- participants: PMID 2333664, abstract (sentence 3) · extracted by AI (automated, not verified by a person) · abstract only
- population: PMID 2333664, abstract (sentence 3) · extracted by AI (automated, not verified by a person) · abstract only
Version 1 · published November 8, 2026 · evidence through November 8, 2026 · research snapshot 2026.1.1 · methodology ev-1 · Automated assessment by AI (claude-opus-5-5 and claude-sonnet-5-5), not reviewed by a person.
These assessments describe published research. Records marked automated were produced by AI under the published methodology and have not been reviewed by a person; they can contain errors. None of this is medical advice, not a statement about any product’s safety for human use, and not a regulatory approval. Peptide Library’s vendor and partner relationships play no part in them (editorial independence).