Where is Thymosin alpha-1 being studied?

Find registered human studies, phases, products, recruitment status and reported research locations around the world. Registry search matches are separate from this profile’s reviewed evidence.

Search this profile’s alternative names

Check the intervention identity in each registry record; aliases and combination products can produce broader matches.

Scientific intelligence record

Experience 2.0

Immune-modulating thymic peptide

Thymosin alpha-1

Also known as: Thymalfasin, Thymosin α1, Tα1, Zadaxin

Thymosin alpha-1 (thymalfasin) is an N-terminally acetylated 28-amino-acid peptide originally isolated from thymic tissue and corresponding to a region of prothymosin alpha. It has context-dependent immunomodulatory effects involving dendritic-cell maturation, innate pattern-recognition signaling, T-cell function, cytokine regulation, and restoration of immune responsiveness; these mechanisms do not imply benefit for every immune or infectious condition.

Record status

Traceability partial

Last meaningful update: 9/8/2026

Evidence searched through:
Not recorded
Assessment updated:
9/8/2026
Documented human review:
No documented human review recorded
Automated scientific assessment:
9/8/2026
AI source check:
9/26/2026

Published source links and profile text pass separate gates. Only a documented human review is labelled as human review; an automated scientific assessment applies deterministic checks, and an AI source check confirms only that a source exists and matches its identifiers. A source count alone does not establish a review.

Evidence coverage has three distinct layers. The corpus count is a transparent screening inventory, the featured set contains study-level tiering and interpretation, and the published-source count contains records promoted through the institutional publication workflow. Source validation, editorial publication, and scientific appraisal are separate decisions; these numbers must not be merged.

Ranked research corpus

500

Categorized publications with provisional ranking; scientific review remains separate.

Featured tiered studies

0

Cornerstone publications with study-level interpretation, limitations, and tier disclosure.

Research domains

6

Clinical and scientific questions synthesized independently across the evidence atlas.

Published source records

25

Database records promoted through the governed publication workflow—not the corpus total.

Corpus generated 2026-09-18. Counts remain separately labeled so screening is not represented as completed review.

Human experience · separate evidence stream

No community pattern is displayed yet

Eligible observations remain below the privacy and reliability threshold. WPF will not convert a handful of reports into a percentage, trend, or clinical claim.

Observation is valuable human context. It is not evidence of causation, efficacy, or safety.

Public display gate

n ≥ 20 eligible observations

Exact progress remains private before the threshold.

Intelligence snapshot

The state of the record

A compact view of what is represented, what remains unresolved, and how completely the record can be traced.

Ranked research corpus

500

Categorized screening records; proposed rankings remain pending human appraisal.

Featured tiered studies

0

Cornerstone studies with published study-level interpretation and tier disclosure.

Research domains

6

Independent evidence dossiers covering the major research questions.

Published source records

25

Source records published through the governed workflow; this count does not certify scientific conclusions.

Contradictions

0

Conflicting evidence relationships that remain visible.

Research gaps

1

Questions the current record identifies as unresolved.

Connected media

0

Media records explicitly linked to this scientific record.

What we know

Evidence, claims, and boundaries

The project separates represented evidence from qualification, contradiction, uncertainty, and what the evidence does not establish.

Reconciled domain conclusions

6 published domain syntheses connected to 0 featured studies

Thymosin alpha-1 no longer relies on the legacy “no public claim” state. Each research domain publishes a bounded synthesis, confidence level, evidence context, limitations, geographic applicability, regulatory interpretation, and research gaps. Publication of these syntheses is separate from the scientific review status shown above.

Inspect the reconciled evidence atlas
Inspect the published evidence record25 governed records · titles, provenance, and original-source linksOpen records ↓
2021Phase 1–2 human evidence
Evidence strength B · 77/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
68/100
Directness
92/100
Population relevance
80/100
Reporting quality
70/100
Replication
55/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Efficacy of Thymosin Alpha 1 in the Treatment of COVID-19: A Multicenter Cohort Study.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Efficacy of Thymosin Alpha 1 in the Treatment of COVID-19: A Multicenter Cohort Study.

Authors
Liu J, Shen Y, Wen Z, Xu Q, Wu Z, Feng H, Li Z, Dong X, Huang S, Guo J, Zhang L, Chen Y, Li W, Zhu W, Du H, Liu Y, Wang T, Chen L, Teboul JL, Annane D, Chen D.
Source
peer_reviewed_research
DOI
10.3389/fimmu.2021.673693
PubMed
34408744
Open original source
2026Phase 1–2 human evidence
Evidence strength B · 77/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
68/100
Directness
92/100
Population relevance
80/100
Reporting quality
70/100
Replication
55/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Neoadjuvant immunochemotherapy plus thymalfasin in locally advanced gastric cancer: a prospective clinical trial.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Neoadjuvant immunochemotherapy plus thymalfasin in locally advanced gastric cancer: a prospective clinical trial.

Authors
Xu H, Li F, Li B, Yang D, Liu T, Xia Y, Hua H, Li Q, Wang J, Liu H, Xu Z.
Source
peer_reviewed_research
DOI
10.1186/s12916-026-04740-z
PubMed
41749205
Open original source
2023Phase 1–2 human evidence
Evidence strength B · 77/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
68/100
Directness
92/100
Population relevance
80/100
Reporting quality
70/100
Replication
55/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

A Pilot Trial of Thymalfasin (Thymosin-α-1) to Treat Hospitalized Patients With Hypoxemia and Lymphocytopenia Due to Coronavirus Disease 2019 Infection.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: A Pilot Trial of Thymalfasin (Thymosin-α-1) to Treat Hospitalized Patients With Hypoxemia and Lymphocytopenia Due to Coronavirus Disease 2019 Infection.

Authors
Shehadeh F, Benitez G, Mylona EK, Tran QL, Tsikala-Vafea M, Atalla E, Kaczynski M, Mylonakis E.
Source
peer_reviewed_research
DOI
10.1093/infdis/jiac362
PubMed
36056913
Open original source
2020Phase 1–2 human evidence
Evidence strength B · 77/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
68/100
Directness
92/100
Population relevance
80/100
Reporting quality
70/100
Replication
55/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin Alpha 1 Mitigates Cytokine Storm in Blood Cells From Coronavirus Disease 2019 Patients.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin Alpha 1 Mitigates Cytokine Storm in Blood Cells From Coronavirus Disease 2019 Patients.

Authors
Matteucci C, Minutolo A, Balestrieri E, Petrone V, Fanelli M, Malagnino V, Ianetta M, Giovinazzo A, Barreca F, Di Cesare S, De Marco P, Miele MT, Toschi N, Mastino A, Sinibaldi Vallebona P, Bernardini S, Rogliani P, Sarmati L, Andreoni M, Grelli S, Garaci E.
Source
peer_reviewed_research
DOI
10.1093/ofid/ofaa588
PubMed
33506065
Open original source
2004Phase 1–2 human evidence
Evidence strength B · 77/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
68/100
Directness
92/100
Population relevance
80/100
Reporting quality
70/100
Replication
55/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymalfasin (thymosin-alpha 1) therapy in patients with chronic hepatitis B.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymalfasin (thymosin-alpha 1) therapy in patients with chronic hepatitis B.

Authors
Liaw YF.
Source
peer_reviewed_research
PubMed
15641208
Open original source
2010Phase 1–2 human evidence
Evidence strength B · 77/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
68/100
Directness
92/100
Population relevance
80/100
Reporting quality
70/100
Replication
55/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Large randomized study of thymosin alpha 1, interferon alfa, or both in combination with dacarbazine in patients with metastatic melanoma.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Large randomized study of thymosin alpha 1, interferon alfa, or both in combination with dacarbazine in patients with metastatic melanoma.

Authors
Maio M, Mackiewicz A, Testori A, Trefzer U, Ferraresi V, Jassem J, Garbe C, Lesimple T, Guillot B, Gascon P, Gilde K, Camerini R, Cognetti F; Thymosin Melanoma Investigation Group.
Source
peer_reviewed_research
DOI
10.1200/JCO.2009.25.5208
PubMed
20194853
Open original source
2019Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Bioactive Thymosin Alpha-1 Does Not Influence F508del-CFTR Maturation and Activity.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Bioactive Thymosin Alpha-1 Does Not Influence F508del-CFTR Maturation and Activity.

Authors
Armirotti A, Tomati V, Matthes E, Veit G, Cholon DM, Phuan PW, Braccia C, Guidone D, Gentzsch M, Lukacs GL, Verkman AS, Galietta LJV, Hanrahan JW, Pedemonte N.
Source
peer_reviewed_research
DOI
10.1038/s41598-019-46639-1
PubMed
31311979
Open original source
2015Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin alpha-1 treatment in chronic hepatitis B.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin alpha-1 treatment in chronic hepatitis B.

Authors
Wu X, Jia J, You H.
Source
peer_reviewed_research
DOI
10.1517/14712598.2015.1007948
PubMed
25640173
Open original source
1991Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Nuclear targeting of prothymosin alpha.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Nuclear targeting of prothymosin alpha.

Authors
Manrow RE, Sburlati AR, Hanover JA, Berger SL.
Source
peer_reviewed_research
PubMed
1899869
Open original source
2020Observational human evidence
Evidence strength B · 73/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
58/100
Directness
92/100
Population relevance
60/100
Reporting quality
70/100
Replication
70/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin alpha 1: A comprehensive review of the literature.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin alpha 1: A comprehensive review of the literature.

Authors
Dominari A, Hathaway Iii D, Pandav K, Matos W, Biswas S, Reddy G, Thevuthasan S, Khan MA, Mathew A, Makkar SS, Zaidi M, Fahem MMM, Beas R, Castaneda V, Paul T, Halpern J, Baralt D.
Source
peer_reviewed_research
DOI
10.5501/wjv.v9.i5.67
PubMed
33362999
Open original source
1996Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin alpha 1 does not promote growth or oncogenic transformation.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin alpha 1 does not promote growth or oncogenic transformation.

Authors
Naylor PH, Smith MR, Mutchnick MG, Naylor CW, Dosescu J, Skunca M, Moshier JA.
Source
peer_reviewed_research
DOI
10.1016/0192-0561(96)00032-x
PubMed
8933211
Open original source
2022Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin α-1 Reverses M2 Polarization of Tumor-Associated Macrophages during Efferocytosis.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin α-1 Reverses M2 Polarization of Tumor-Associated Macrophages during Efferocytosis.

Authors
Wei YT, Wang XR, Yan C, Huang F, Zhang Y, Liu X, Wen ZF, Sun XT, Zhang Y, Chen YQ, Gao R, Pan N, Wang LX.
Source
peer_reviewed_research
DOI
10.1158/0008-5472.CAN-21-4260
PubMed
35364609
Open original source
2025Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Aging and Thymosin Alpha-1.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Aging and Thymosin Alpha-1.

Authors
Simonova MA, Ivanov I, Shoshina NS, Komyakova AM, Makarov DA, Baranovskii DS, Klabukov ID, Telepenina KP, Atiakshin DA, Shegay PV, Kaprin AD, Stepanenko VN.
Source
peer_reviewed_research
DOI
10.3390/ijms262311470
PubMed
41373628
Open original source
2023Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin α-1 in cancer therapy: Immunoregulation and potential applications.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin α-1 in cancer therapy: Immunoregulation and potential applications.

Authors
Wei Y, Zhang Y, Li P, Yan C, Wang L.
Source
peer_reviewed_research
DOI
10.1016/j.intimp.2023.109744
PubMed
36812669
Open original source
2024Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin α1 reverses oncolytic adenovirus-induced M2 polarization of macrophages to improve antitumor immunity and therapeutic efficacy.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin α1 reverses oncolytic adenovirus-induced M2 polarization of macrophages to improve antitumor immunity and therapeutic efficacy.

Authors
Liu K, Kong L, Cui H, Zhang L, Xin Q, Zhuang Y, Guo C, Yao Y, Tao J, Gu X, Jiang C, Wu J.
Source
peer_reviewed_research
DOI
10.1016/j.xcrm.2024.101751
PubMed
39357524
Open original source
1987Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Prothymosin alpha in human blood.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Prothymosin alpha in human blood.

Authors
Panneerselvam C, Haritos AA, Caldarella J, Horecker BL.
Source
peer_reviewed_research
DOI
10.1073/pnas.84.13.4465
PubMed
3474615
Open original source
1989Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Localization of immunoreactive thymosin alpha 1 in astrocytes of normal human brain.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Localization of immunoreactive thymosin alpha 1 in astrocytes of normal human brain.

Authors
Su YL, Ho KL, Dalakas MC, Mutchnick MG.
Source
peer_reviewed_research
DOI
10.1002/ana.410260216
PubMed
2774514
Open original source
2018Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin α-1 does not correct F508del-CFTR in cystic fibrosis airway epithelia.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin α-1 does not correct F508del-CFTR in cystic fibrosis airway epithelia.

Authors
Tomati V, Caci E, Ferrera L, Pesce E, Sondo E, Cholon DM, Quinney NL, Boyles SE, Armirotti A, Ravazzolo R, Galietta LJ, Gentzsch M, Pedemonte N.
Source
peer_reviewed_research
DOI
10.1172/jci.insight.98699
PubMed
29415893
Open original source
2007Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin alpha 1: from bench to bedside.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin alpha 1: from bench to bedside.

Authors
Garaci E, Favalli C, Pica F, Sinibaldi Vallebona P, Palamara AT, Matteucci C, Pierimarchi P, Serafino A, Mastino A, Bistoni F, Romani L, Rasi G.
Source
peer_reviewed_research
DOI
10.1196/annals.1415.044
PubMed
17600290
Open original source
2001Observational human evidence
Evidence strength B · 72/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
56/100
Directness
92/100
Population relevance
72/100
Reporting quality
70/100
Replication
50/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin alpha-1.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin alpha-1.

Authors
Ancell CD, Phipps J, Young L.
Source
peer_reviewed_research
DOI
10.1093/ajhp/58.10.886
PubMed
11381492
Open original source
1995Animal research
Evidence strength C · 62/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
46/100
Directness
92/100
Population relevance
25/100
Reporting quality
70/100
Replication
45/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Immunotherapy with natural interleukins and/or thymosin alpha 1 potently augments T-lymphocyte responses of hydrocortisone-treated aged mice.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Immunotherapy with natural interleukins and/or thymosin alpha 1 potently augments T-lymphocyte responses of hydrocortisone-treated aged mice.

Authors
Hadden JW, Saha A, Sosa M, Hadden EM.
Source
peer_reviewed_research
DOI
10.1016/0192-0561(95)00069-e
PubMed
8707447
Open original source
1985Animal research
Evidence strength C · 62/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
46/100
Directness
92/100
Population relevance
25/100
Reporting quality
70/100
Replication
45/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Receptors for thymosin alpha 1 on mouse thymocytes.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Receptors for thymosin alpha 1 on mouse thymocytes.

Authors
Rinaldi Garaci C, Torrisi MR, Jezzi T, Frati L, Goldstein AL, Garaci E.
Source
peer_reviewed_research
DOI
10.1016/0008-8749(85)90051-6
PubMed
3882244
Open original source
1983Animal research
Evidence strength C · 62/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
46/100
Directness
92/100
Population relevance
25/100
Reporting quality
70/100
Replication
45/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin alpha 1 restores NK-cell activity and prevents tumor progression in mice immunosuppressed by cytostatics or X-rays.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin alpha 1 restores NK-cell activity and prevents tumor progression in mice immunosuppressed by cytostatics or X-rays.

Authors
Umeda Y, Sakamoto A, Nakamura J, Ishitsuka H, Yagi Y.
Source
peer_reviewed_research
DOI
10.1007/BF00199694
PubMed
6553515
Open original source
2026Laboratory research
Evidence strength C · 61/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
44/100
Directness
92/100
Population relevance
25/100
Reporting quality
70/100
Replication
45/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

Thymosin Alpha-1 Restores Chemotherapy-Induced Antitumor Immunity by Chaperoning a MicroRNA Ligand of TLR7 in Dendritic Cells.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: Thymosin Alpha-1 Restores Chemotherapy-Induced Antitumor Immunity by Chaperoning a MicroRNA Ligand of TLR7 in Dendritic Cells.

Authors
Wei Y, Chen J, Zhang Y, Liu Y, Zhu F, Wang X, Zhou X, Wu C, Zhang W, Chen J, Zhang Y, Pan N, Chen K, Zheng S, Yan C, Liu L, Wang L.
Source
peer_reviewed_research
DOI
10.1158/0008-5472.CAN-25-5547
PubMed
42295795
Open original source
2025Laboratory research
Evidence strength C · 61/100 · ProvisionalHow this is rated

This score estimates how strongly this source can support scientific claims. It is not a prestige score, and the grade does not transfer automatically to every claim that cites the source.

Grade guide: A+/A is the strongest represented support; B+/B is substantial but qualified; C is limited, indirect, observational, or preclinical; D/E is weak, mechanistic-only, anecdotal, or insufficient.

Source authority
80/100
Study design and bias control
44/100
Directness
92/100
Population relevance
25/100
Reporting quality
70/100
Replication
45/100

Automated structured-metadata baseline; full-text risk-of-bias review may revise this rating.

Provisional ratings are automated baselines from structured metadata. They are not completed full-text risk-of-bias reviews and may change after editorial assessment.

Methodology: WPF-ESR-1.0

The Immunomodulatory Activity of Thymosin Alpha 1 on Tumor Cell Lines and Distinct Immune Cell Subsets.

This PubMed-indexed source examines thymosin alpha-1 in the context described by its title: The Immunomodulatory Activity of Thymosin Alpha 1 on Tumor Cell Lines and Distinct Immune Cell Subsets.

Authors
Solmonese L, Lofiego MF, Fazio C, Marzani F, Piazzini F, Bello E, Celesti F, Giacobini G, Wang X, Maio M, Coral S, Di Giacomo AM, Covre A.
Source
peer_reviewed_research
DOI
10.2147/OTT.S527785
PubMed
40955371
Open original source

Scientific context

Chemistry and represented biological context

Existing reviewed chemistry is preserved as scientific context. Chemistry and mechanism information do not establish clinical efficacy or safety.

Open chemistry and biological context ↓
Chemical identity

Molecular and structural record

Structured record
Molecular formula
C129H215N33O55
Molecular weight (Da)
3108.3
Amino acid sequence
Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN

Chemical identity describes the recorded molecular information. It does not establish biological activity, clinical efficacy, safety, or therapeutic suitability.

Research

How the scientific record is developing

Chronology, unresolved research questions, opportunities, and researcher activity remain descriptive rather than evaluative.

Research chronology

  1. 1983 · study · Temporal status not established

    Thymosin alpha 1 restores NK-cell activity and prevents tumor progression in mice immunosuppressed by cytostatics or X-rays.

    peer_reviewed_research

  2. 1985 · study · Temporal status not established

    Receptors for thymosin alpha 1 on mouse thymocytes.

    peer_reviewed_research

  3. 1987 · study · Temporal status not established

    Prothymosin alpha in human blood.

    peer_reviewed_research

  4. 1989 · study · Temporal status not established

    Localization of immunoreactive thymosin alpha 1 in astrocytes of normal human brain.

    peer_reviewed_research

  5. 1991 · study · Temporal status not established

    Nuclear targeting of prothymosin alpha.

    peer_reviewed_research

  6. 1995 · study · Temporal status not established

    Immunotherapy with natural interleukins and/or thymosin alpha 1 potently augments T-lymphocyte responses of hydrocortisone-treated aged mice.

    peer_reviewed_research

  7. 1996 · study · Temporal status not established

    Thymosin alpha 1 does not promote growth or oncogenic transformation.

    peer_reviewed_research

  8. 2001 · study · Temporal status not established

    Thymosin alpha-1.

    peer_reviewed_research

  9. 2004 · study · Temporal status not established

    Thymalfasin (thymosin-alpha 1) therapy in patients with chronic hepatitis B.

    peer_reviewed_research

  10. 2007 · study · Temporal status not established

    Thymosin alpha 1: from bench to bedside.

    peer_reviewed_research

  11. 2010 · study · Temporal status not established

    Large randomized study of thymosin alpha 1, interferon alfa, or both in combination with dacarbazine in patients with metastatic melanoma.

    peer_reviewed_research

  12. 2015 · study · Temporal status not established

    Thymosin alpha-1 treatment in chronic hepatitis B.

    peer_reviewed_research

  13. 2018 · study · Temporal status not established

    Thymosin α-1 does not correct F508del-CFTR in cystic fibrosis airway epithelia.

    peer_reviewed_research

  14. 2019 · study · Temporal status not established

    Bioactive Thymosin Alpha-1 Does Not Influence F508del-CFTR Maturation and Activity.

    peer_reviewed_research

  15. 2020 · study · Temporal status not established

    Thymosin Alpha 1 Mitigates Cytokine Storm in Blood Cells From Coronavirus Disease 2019 Patients.

    peer_reviewed_research

  16. 2020 · study · Temporal status not established

    Thymosin alpha 1: A comprehensive review of the literature.

    peer_reviewed_research

  17. 2021 · study · Temporal status not established

    Efficacy of Thymosin Alpha 1 in the Treatment of COVID-19: A Multicenter Cohort Study.

    peer_reviewed_research

  18. 2022 · study · Temporal status not established

    Thymosin α-1 Reverses M2 Polarization of Tumor-Associated Macrophages during Efferocytosis.

    peer_reviewed_research

  19. 2023 · study · Temporal status not established

    A Pilot Trial of Thymalfasin (Thymosin-α-1) to Treat Hospitalized Patients With Hypoxemia and Lymphocytopenia Due to Coronavirus Disease 2019 Infection.

    peer_reviewed_research

  20. 2023 · study · Temporal status not established

    Thymosin α-1 in cancer therapy: Immunoregulation and potential applications.

    peer_reviewed_research

  21. 2024 · study · Temporal status not established

    Thymosin α1 reverses oncolytic adenovirus-induced M2 polarization of macrophages to improve antitumor immunity and therapeutic efficacy.

    peer_reviewed_research

  22. 2025 · study · Temporal status not established

    Aging and Thymosin Alpha-1.

    peer_reviewed_research

  23. 2025 · study · Temporal status not established

    The Immunomodulatory Activity of Thymosin Alpha 1 on Tumor Cell Lines and Distinct Immune Cell Subsets.

    peer_reviewed_research

  24. 2026 · study · Temporal status not established

    Neoadjuvant immunochemotherapy plus thymalfasin in locally advanced gastric cancer: a prospective clinical trial.

    peer_reviewed_research

  25. 2026 · study · Temporal status not established

    Thymosin Alpha-1 Restores Chemotherapy-Induced Antitumor Immunity by Chaperoning a MicroRNA Ligand of TLR7 in Dendritic Cells.

    peer_reviewed_research

  26. 2026 · regulatory · Temporal status not established

    Regulatory review: not_approved

    European Union (EMA)

  27. 2026 · regulatory · Temporal status not established

    Regulatory review: not_approved

    United States (FDA)

The represented chronology reflects records currently included in the governed dataset and does not claim to represent the entire scientific literature.

What still needs investigation

Claim traceability

No institutional claim record is currently represented for this peptide.

Evidence is missing or not represented as studied; this is not a conclusion that the intervention does not work.

Researchers represented in the evidence record12 bibliographic identities · open to inspect

These are bibliographic author identities derived from represented records. Name strings are not proof of unique real-world researcher identity, and publishing organizations are not treated as institutional affiliations.

Garaci E

3 represented evidence records

Years represented: 1985, 2007, 2020

Publishing organizations appearing in records: peer_reviewed_research

Wang X

3 represented evidence records

Years represented: 2022, 2025, 2026

Publishing organizations appearing in records: peer_reviewed_research

Wei Y

3 represented evidence records

Years represented: 2022, 2023, 2026

Publishing organizations appearing in records: peer_reviewed_research

Yan C

3 represented evidence records

Years represented: 2022, 2023, 2026

Publishing organizations appearing in records: peer_reviewed_research

Zhang Y

3 represented evidence records

Years represented: 2022, 2023, 2026

Publishing organizations appearing in records: peer_reviewed_research

Armirotti A

2 represented evidence records

Years represented: 2018, 2019

Publishing organizations appearing in records: peer_reviewed_research

Chen Y

2 represented evidence records

Years represented: 2021, 2022

Publishing organizations appearing in records: peer_reviewed_research

Cholon DM

2 represented evidence records

Years represented: 2018, 2019

Publishing organizations appearing in records: peer_reviewed_research

Galietta LJ

2 represented evidence records

Years represented: 2018, 2019

Publishing organizations appearing in records: peer_reviewed_research

Garaci E.

2 represented evidence records

Years represented: 1985, 2020

Publishing organizations appearing in records: peer_reviewed_research

Gentzsch M

2 represented evidence records

Years represented: 2018, 2019

Publishing organizations appearing in records: peer_reviewed_research

Liu Y

2 represented evidence records

Years represented: 2021, 2026

Publishing organizations appearing in records: peer_reviewed_research

Connections

Follow the scientific relationships

Connections appear only when they are represented by the project’s underlying records.

Open 1 represented connection ↓

institution

peer_reviewed_research

represented evidence source

Traceability

Follow the record back to its source

The experience makes incomplete links visible instead of presenting a false impression of perfect provenance.

Source publication state

A governed source may be verified and approved for publication while its claim-to-evidence link is still incomplete.

Reviewer provenance state

“Human scientist reviewed: no” means that specific source-path attribution is not recorded. It does not silently negate the separate publication-review state.

Domain conclusion → Evidence

Connected

Evidence → Source

Connected

Source → Original record

Connected

Traceability documents how the project connects statements to records. It does not establish that a source is scientifically valid or that a claim is clinically true.

Reconciled for 6 domain conclusions and 0 featured studies.

Detailed study-to-domain mappings and original-source paths appear in the Thymosin alpha-1 evidence-governance section.

Inspect the ranked source records

Observational archive

What contributors reported

Observational archive data is intentionally separated from published scientific evidence.

Observational boundary

Insufficient eligible observations are available for display under the current filters.

Insufficient eligible observations are currently represented to display aggregated findings for this peptide.

Regulatory context

Published jurisdictional records

Regulatory status is jurisdiction-specific and time-dependent. It is presented as context, not as a recommendation for use or a substitute for scientific evidence evaluation.

Research + media

Media connected to this scientific record

Only media explicitly linked through the project’s relationship system appears here.

No scientifically connected media is currently represented for this peptide.

Sources + provenance

Read the scientific record with its boundaries intact

The public record organizes reviewed evidence; it does not establish scientific truth by itself.
Association, mechanism, observation and regulatory status must not be represented as proof of clinical efficacy or safety.
Observational reports describe contributor experiences and cannot establish causation, effectiveness, safety or clinical benefit.
Contradictory and qualifying evidence must remain visible rather than being silently discarded.
Absence of represented evidence is not evidence that research does not exist.
Research gaps identify unresolved questions; they are not negative conclusions.
Regulatory status is distinct from scientific evidence quality.
Media relationships provide context and explanation; they do not increase the strength of scientific evidence.
A section with no represented records is an incomplete project record, not a scientific conclusion.
Researcher and institutional relationships are shown only when supported by represented records and must not be interpreted as rankings or endorsements.

Generated: 11/8/2026, 5:28:55 PM

global evidence atlas

Thymosin alpha-1 research, ranked and separated by purpose

This is a deduplicated literature screening registry—not a claim that every mention directly proves efficacy or safety. Machine proposals remain visibly separate from governed human appraisal.

570Discoverable source universe
500Ranked screening records
6Research domains
0Accountably approved conclusions

500 matching records · ranked 2026-09-18

Page 1 of 20

Count reconciliation: 570 discoverable source records match the peptide identity query; 500 are retained in this bounded, ranked screening view; 0 belong to the separate governed layer labeled “Accountably approved conclusions.” Domain totals overlap because one publication may inform several questions.

governance and regulatory context

Thymosin alpha-1: what this atlas does and does not establish

Last checked
2026-09-18
Accountable publication approval
Not yet approved by a named accountable reviewer. Machine screening only.

No new outcome conclusion is inferred from discovery metadata. Named accountable approval is required for governed scientific conclusions.

Regulatory status by jurisdiction

Absence of a record in this pass is not proof that no authorization exists. Status must remain jurisdiction-, product-, formulation-, and date-specific.

  • European Union (EMA)not approvedchecked 2026-09-08

    No centrally authorized EMA thymosin alpha-1 or thymalfasin medicine was identified in the EMA medicines database as of 8 September 2026.

    European Medicines Agency medicines database
  • United States (FDA)not approvedchecked 2026-09-08

    No FDA-approved thymosin alpha-1 or thymalfasin drug product or therapeutic indication was identified in Drugs@FDA as of 8 September 2026.

    Drugs@FDA: FDA-Approved Drugs

Known limitations of this pass

  • no patent candidate retained after literal filter

25 of 500 screening records carry a machine-proposed evidence-strength grade; the remainder are unassigned pending further review.

Thymosin alpha-1 evidence · ranking key

How evidence is ranked

A tier describes the evidentiary role and design strength of a source. It is not a popularity score, proof that every conclusion is correct, or a substitute for claim-level review.

A

Practice-defining evidence

Large, well-conducted randomized trials; prespecified major outcomes; rigorous systematic reviews or meta-analyses; and major regulatory assessments.

B

Strong supporting evidence

Smaller randomized trials, strong prospective cohorts, prespecified secondary analyses, and high-quality comparative-effectiveness studies.

C

Contextual evidence

Retrospective cohorts, claims-database studies, pharmacovigilance analyses, mechanistic human research, and well-documented case series.

D

Signal-generating evidence

Case reports, conference abstracts, preclinical research, hypothesis-generating analyses, and expert commentary.

Tier and confidence answer different questions

Tier classifies source design and evidentiary role. Confidence reflects risk of bias, sample size, comparator quality, outcome relevance, follow-up, missing data, directness, replication, reporting quality, and whether conclusions stay within the measured results.

Funding and conflicts are disclosed and considered, but sponsorship never automatically changes a tier. Corrections, retractions, and expressions of concern override the original rating.

Suggested citation

  • APA

    World Peptide Foundation. (n.d.). Thymosin alpha-1 — Peptide Scientific Intelligence. World Peptide Foundation. (Updated September 8, 2026.) https://www.worldpeptidefoundation.org/directory/thymosin-alpha-1

  • AMA / Vancouver

    World Peptide Foundation. Thymosin alpha-1 — Peptide Scientific Intelligence. World Peptide Foundation website. Updated September 8, 2026. https://www.worldpeptidefoundation.org/directory/thymosin-alpha-1