Research statistics

Thymosin β4 (Tβ4) research: publications and trials

What has been published on Thymosin β4 (Tβ4): PubMed publications, the kind of evidence they report and registered clinical trials. These are counts of research, not a judgment of whether Thymosin β4 (Tβ4) works or is safe. For what it is and what the studies found, see the Thymosin β4 (Tβ4) profile.
Automated weekly refresh · data through November 1, 2026

At a glance

Publications, all years

968

Since 1981

Publications in 2026 so far

23

Through November 1, 2026

Human clinical research

8.5%

82 of 961 classified

Registered clinical trials

16

ClinicalTrials.gov

Randomized controlled trials

9

Publications reporting an RCT in people

Systematic reviews and meta-analyses

0

Preclinical studies

76.3%

460 animal · 269 in vitro · 4 computational

Records that only mention it

155

Not counted above

Status in the library: Research only. Groups: Tissue-repair peptides. 7 publications are not yet classified by study type.

What to keep in mind

  • More than 70% of the indexed publications are animal, cell or computational studies.
  • Some completed trials have neither posted results nor a linked results publication.
  • The body makes this molecule itself, so much of its literature is physiology rather than research on it as a compound.

Publications by year

Thymosin β4 (Tβ4) publications by year and evidence

1981, Preclinical (animal, in vitro, computational): 4 of 41982, Preclinical (animal, in vitro, computational): 4 of 41983, Preclinical (animal, in vitro, computational): 7 of 81983, Other and not yet classified: 1 of 81984, Human clinical research: 1 of 81984, Preclinical (animal, in vitro, computational): 5 of 81984, Reviews and meta-analyses: 1 of 81984, Other and not yet classified: 1 of 81985, Human clinical research: 1 of 71985, Preclinical (animal, in vitro, computational): 6 of 71986, Human clinical research: 1 of 31986, Preclinical (animal, in vitro, computational): 2 of 31987, Preclinical (animal, in vitro, computational): 6 of 61988, Human clinical research: 1 of 51988, Preclinical (animal, in vitro, computational): 4 of 51989, Human clinical research: 1 of 101989, Preclinical (animal, in vitro, computational): 8 of 101989, Other and not yet classified: 1 of 101990, Human clinical research: 1 of 171990, Preclinical (animal, in vitro, computational): 16 of 171991, Preclinical (animal, in vitro, computational): 12 of 151991, Reviews and meta-analyses: 1 of 151991, Other and not yet classified: 2 of 151992, Human clinical research: 1 of 211992, Preclinical (animal, in vitro, computational): 19 of 211992, Other and not yet classified: 1 of 211993, Human clinical research: 2 of 161993, Preclinical (animal, in vitro, computational): 12 of 161993, Reviews and meta-analyses: 1 of 161993, Other and not yet classified: 1 of 161994, Preclinical (animal, in vitro, computational): 11 of 141994, Reviews and meta-analyses: 2 of 141994, Other and not yet classified: 1 of 141995, Preclinical (animal, in vitro, computational): 11 of 111996, Human clinical research: 1 of 161996, Preclinical (animal, in vitro, computational): 15 of 161997, Preclinical (animal, in vitro, computational): 9 of 91998, Preclinical (animal, in vitro, computational): 4 of 51998, Other and not yet classified: 1 of 51999, Preclinical (animal, in vitro, computational): 11 of 121999, Reviews and meta-analyses: 1 of 122000, Preclinical (animal, in vitro, computational): 12 of 132000, Other and not yet classified: 1 of 132001, Preclinical (animal, in vitro, computational): 11 of 152001, Reviews and meta-analyses: 1 of 152001, Other and not yet classified: 3 of 152002, Preclinical (animal, in vitro, computational): 14 of 152002, Reviews and meta-analyses: 1 of 152003, Human clinical research: 1 of 222003, Preclinical (animal, in vitro, computational): 19 of 222003, Reviews and meta-analyses: 1 of 222003, Other and not yet classified: 1 of 222004, Human clinical research: 1 of 222004, Preclinical (animal, in vitro, computational): 20 of 222004, Other and not yet classified: 1 of 222005, Preclinical (animal, in vitro, computational): 16 of 192005, Reviews and meta-analyses: 3 of 192006, Human clinical research: 2 of 172006, Preclinical (animal, in vitro, computational): 14 of 172006, Reviews and meta-analyses: 1 of 172007, Human clinical research: 3 of 512007, Preclinical (animal, in vitro, computational): 31 of 512007, Reviews and meta-analyses: 16 of 512007, Other and not yet classified: 1 of 512008, Preclinical (animal, in vitro, computational): 10 of 112008, Reviews and meta-analyses: 1 of 112009, Human clinical research: 1 of 232009, Preclinical (animal, in vitro, computational): 19 of 232009, Reviews and meta-analyses: 3 of 232010, Human clinical research: 6 of 462010, Preclinical (animal, in vitro, computational): 24 of 462010, Reviews and meta-analyses: 16 of 462011, Human clinical research: 9 of 402011, Preclinical (animal, in vitro, computational): 27 of 402011, Reviews and meta-analyses: 2 of 402011, Other and not yet classified: 2 of 402012, Human clinical research: 5 of 602012, Preclinical (animal, in vitro, computational): 37 of 602012, Reviews and meta-analyses: 16 of 602012, Other and not yet classified: 2 of 602013, Human clinical research: 5 of 452013, Preclinical (animal, in vitro, computational): 34 of 452013, Reviews and meta-analyses: 3 of 452013, Other and not yet classified: 3 of 452014, Human clinical research: 3 of 312014, Preclinical (animal, in vitro, computational): 28 of 312015, Human clinical research: 4 of 452015, Preclinical (animal, in vitro, computational): 33 of 452015, Reviews and meta-analyses: 5 of 452015, Other and not yet classified: 3 of 452016, Human clinical research: 7 of 382016, Preclinical (animal, in vitro, computational): 23 of 382016, Reviews and meta-analyses: 8 of 382017, Human clinical research: 5 of 252017, Preclinical (animal, in vitro, computational): 18 of 252017, Reviews and meta-analyses: 2 of 252018, Human clinical research: 1 of 502018, Preclinical (animal, in vitro, computational): 34 of 502018, Reviews and meta-analyses: 14 of 502018, Other and not yet classified: 1 of 502019, Human clinical research: 2 of 272019, Preclinical (animal, in vitro, computational): 22 of 272019, Reviews and meta-analyses: 3 of 272020, Human clinical research: 1 of 182020, Preclinical (animal, in vitro, computational): 16 of 182020, Reviews and meta-analyses: 1 of 182021, Human clinical research: 6 of 332021, Preclinical (animal, in vitro, computational): 24 of 332021, Reviews and meta-analyses: 3 of 332022, Human clinical research: 4 of 242022, Preclinical (animal, in vitro, computational): 16 of 242022, Reviews and meta-analyses: 3 of 242022, Other and not yet classified: 1 of 242023, Human clinical research: 2 of 282023, Preclinical (animal, in vitro, computational): 21 of 282023, Reviews and meta-analyses: 5 of 282024, Preclinical (animal, in vitro, computational): 8 of 102024, Reviews and meta-analyses: 1 of 102024, Other and not yet classified: 1 of 102025, Human clinical research: 3 of 262025, Preclinical (animal, in vitro, computational): 21 of 262025, Other and not yet classified: 2 of 262026 (to date), Human clinical research: 1 of 232026 (to date), Preclinical (animal, in vitro, computational): 15 of 232026 (to date), Reviews and meta-analyses: 7 of 23Human clinical researchPreclinical (animal, in vitro, computational)Reviews and meta-analysesOther and not yet classified020406019811991200120112026*
Counted PubMed publications by year of first publication. * 2026 runs to November 1, 2026. A larger bar is more publications, not stronger evidence.
Show the data
YearHuman clinical researchPreclinical (animal, in vitro, computational)Reviews and meta-analysesOther and not yet classifiedTotal
198104004
198204004
198307018
198415118
198516007
198612003
198706006
198814005
1989180110
19901160017
19910121215
19921190121
19932121116
19940112114
19950110011
19961150016
199709009
199804015
19990111012
20000120113
20010111315
20020141015
20031191122
20041200122
20050163019
20062141017
200733116151
20080101011
20091193023
201062416046
20119272240
201253716260
20135343345
20143280031
20154335345
20167238038
20175182025
201813414150
20192223027
20201161018
20216243033
20224163124
20232215028
2024081110
20253210226
2026 (to date)1157023

Study types

Animal study460
In vitro study269
Review122
Observational human study68
Editorial, letter or other20
Randomized controlled trial9
Not yet classified7
Computational study4
Correction or retraction notice4
Other clinical trial3
Case report2

Research areas

From MeSH major topics. A paper can be in several areas.

Cardiovascular196
Tissue repair193
Immune system160
Oncology138
Neurological and mental health112
Gastrointestinal82
Reproductive and sexual health64
Dermatology60
Antimicrobial and infectious disease50
Musculoskeletal42
Endocrinology37
Metabolic health32

Registered clinical trials

3 of 9 trials completed at least a year before the cutoff have neither posted results nor a linked results publication. A registration is not a result.

Completed: 9 · Terminated: 3 · Withdrawn: 2 · Not yet recruiting: 1 · Recruiting: 1
Phase 1: 3 · Phase 2: 8 · Phase 2 / Phase 3: 1 · Phase 3: 4

TrialStatusPhaseStartedResults
Recombinant Human Thymosin Beta 4 for Injection(NL005) for Acute Myocardial InfarctionNCT07586865 · 189 enrolledNot yet recruitingPhase 22026-05—
Assessment of the Safety and Efficacy of 0.1% RGN-259 Ophthalmic Solution for the Treatment of NK: SEER-2NCT05555589 · 70 enrolledRecruitingPhase 32023-04—
A Study of the Safety and Efficacy of Injectable Thymosin Beta 4 for Treating Acute Myocardial InfarctionNCT01311518WithdrawnPhase 22019-07—
Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-3NCT03937882 · 700 enrolledCompletedPhase 32019-05Posted
A Phase 1b Study of Thymosin Beta 4 in Healthy VolunteersNCT04555850 · 30 enrolledCompletedPhase 12018-07—
A Phase 1a Study of Thymosin Beta 4 in Healthy VolunteersNCT04555824 · 54 enrolledCompletedPhase 12017-07—
Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome : ARISE-2NCT02974907 · 601 enrolledCompletedPhase 32016-11Posted
Assessment of the Safety and Efficacy Study of RGN-259 Ophthalmic Solutions for Neurotrophic Keratopathy : SEER-1NCT02600429 · 18 enrolledTerminatedPhase 32015-09Posted
Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-1NCT02597803 · 317 enrolledCompletedPhase 2, Phase 32015-09—
Safety and Efficacy of Thymosin Beta 4 Ophthalmic Solution in Patients With Dry EyeNCT01387347 · 72 enrolledCompletedPhase 22011-08Posted
Comparative Study of Thymosin Beta 4 Eye Drops vs. Vehicle in the Treatment of Severe Dry EyeNCT01393132 · 9 enrolledCompletedPhase 22011-03Posted
A Phase 1 Safety Study of the Intravenous Administration of Thymosin Beta in Healthy VolunteersNCT00743769WithdrawnPhase 12008-04—
A Phase 2 Study of the Safety and Efficacy of Thymosin Beta 4 for Treating Corneal WoundsNCT00598871 · 12 enrolledTerminatedPhase 22007-12Posted
Study of Thymosin Beta 4 in Patients With Venous Stasis UlcersNCT00832091 · 72 enrolledCompletedPhase 22006-07Posted
Study of Thymosin Beta 4 in Patients With Pressure UlcersNCT00382174 · 72 enrolledCompletedPhase 22006-05Posted
A Phase 2 Study on Effect of Thymosin Beta 4 on Wound Healing in Patients With Epidermolysis BullosaNCT00311766 · 30 enrolledTerminatedPhase 22006-02Posted

Human trials and evidence reviews

Meta-analyses, systematic reviews and trials in people, newest first.

  1. Recombinant human thymosin beta 4 improves ischemic cardiac dysfunction in mice and patients with acute ST-segment elevation myocardial infarction after reperfusion.

    Cardiovascular research · December 1, 2025 · Randomized controlled trial · cited 0 times

    PMID 41229390 · DOI 10.1093/cvr/cvaf223 · Human clinical research

  2. A first-in-human, randomized, double-blind, single- and multiple-dose, phase I study of recombinant human thymosin β4 in healthy Chinese volunteers.

    Journal of cellular and molecular medicine · August 4, 2021 · Randomized controlled trial · cited 17 times · open access

    PMID 34346165 · DOI 10.1111/jcmm.16693 · Human clinical research

  3. Safety and efficacy of autologous thymosin β4 pre-treated endothelial progenitor cell transplantation in patients with acute ST segment elevation myocardial infarction: A pilot study.

    Cytotherapy · June 7, 2016 · Randomized controlled trial · cited 30 times

    PMID 27288307 · DOI 10.1016/j.jcyt.2016.05.006 · Human clinical research

  4. Thymosin beta 4 ophthalmic solution for dry eye: a randomized, placebo-controlled, Phase II clinical trial conducted using the controlled adverse environment (CAE™) model.

    Clinical ophthalmology (Auckland, N.Z.) · May 20, 2015 · Randomized controlled trial · cited 41 times · open access

    PMID 26056426 · DOI 10.2147/opth.s80954 · Human clinical research

  5. Thymosin β4 significantly improves signs and symptoms of severe dry eye in a phase 2 randomized trial.

    Cornea · May 1, 2015 · Randomized controlled trial · cited 61 times

    PMID 25826322 · DOI 10.1097/ico.0000000000000379 · Human clinical research

  6. Increases in plasma Tβ4 after intracardiac cell therapy in chronic ischemic heart failure is associated with symptomatic improvement.

    Regenerative medicine · May 1, 2015 · Randomized controlled trial · cited 7 times

    PMID 26022762 · DOI 10.2217/rme.15.9 · Human clinical research

  7. The effect of thymosin treatment of venous ulcers.

    Annals of the New York Academy of Sciences · April 1, 2010 · Randomized controlled trial · cited 20 times

    PMID 20536470 · DOI 10.1111/j.1749-6632.2010.05490.x · Human clinical research

  8. A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers.

    Annals of the New York Academy of Sciences · April 1, 2010 · Randomized controlled trial · cited 45 times

    PMID 20536472 · DOI 10.1111/j.1749-6632.2010.05474.x · Human clinical research

  9. Thymosin beta-4 and venous ulcers: clinical remarks on a European prospective, randomized study on safety, tolerability, and enhancement on healing.

    Annals of the New York Academy of Sciences · May 10, 2007 · Randomized controlled trial · cited 15 times

    PMID 17495250 · DOI 10.1196/annals.1415.003 · Human clinical research

  10. Recombinant human thymosin beta-4 (rhTβ4) improved scalp condition and microbiome homeostasis in seborrheic dermatitis.

    Microbial biotechnology · July 28, 2021 · Other clinical trial · cited 10 times · open access

    PMID 34318587 · DOI 10.1111/1751-7915.13897 · Human clinical research

Most cited

By OpenAlex citation count. Citations measure attention, not quality or correctness.

  1. MALAT-1, a novel noncoding RNA, and thymosin beta4 predict metastasis and survival in early-stage non-small cell lung cancer.

    Oncogene · September 1, 2003 · Observational human study · cited 2,189 times

    PMID 12970751 · DOI 10.1038/sj.onc.1206928 · Human clinical research

  2. Genomic analysis of metastasis reveals an essential role for RhoC.

    Nature · August 1, 2000 · In vitro study · cited 1,445 times

    PMID 10952316 · DOI 10.1038/35020106 · In vitro studies

  3. In vivo reprogramming of murine cardiac fibroblasts into induced cardiomyocytes.

    Nature · May 1, 2012 · Animal study · cited 1,360 times · open access

    PMID 22522929 · DOI 10.1038/nature11044 · Animal studies

  4. Evidence supporting paracrine hypothesis for Akt-modified mesenchymal stem cell-mediated cardiac protection and functional improvement.

    FASEB journal : official publication of the Federation of American Societies for Experimental Biology · April 1, 2006 · Animal study · cited 1,157 times

    PMID 16581974 · DOI 10.1096/fj.05-5211com · Animal studies

  5. Thymosin beta4 activates integrin-linked kinase and promotes cardiac cell migration, survival and cardiac repair.

    Nature · November 1, 2004 · Animal study · cited 657 times

    PMID 15565145 · DOI 10.1038/nature03000 · Animal studies

Latest publications

  1. Adjunctive recombinant human thymosin β4 therapy improves antibacterial outcomes against <i>Staphylococcus aureus</i>.

    Microbiology spectrum · October 29, 2026 · In vitro study · cited 0 times

    PMID 42954461 · DOI 10.1128/spectrum.03570-25 · In vitro studies

  2. Investigational Peptides in Orthopaedic Practice: Evidence, Safety, and Patient Counseling for BPC-157, Thymosin Beta-4, and TB-500.

    The Journal of the American Academy of Orthopaedic Surgeons · October 27, 2026 · Review · cited 0 times

    PMID 42937313 · DOI 10.5435/jaaos-d-26-00049 · Reviews and meta-analyses

  3. Comparative Transcriptomic Profiling of Diabetic Wound Responses to Recombinant <i>Periplaneta americana</i> Thymosin Isoforms in Male ob/ob Mice.

    Genes · October 16, 2026 · Animal study · cited 0 times · open access

    PMID 42938412 · DOI 10.3390/genes17101296 · Animal studies

  4. Peptides in Regenerative Medicine: A Comprehensive Review of Clinical Applications in Tissue Repair and Chronic Pain Management.

    Current pain and headache reports · August 24, 2026 · Review · cited 0 times

    PMID 42635865 · DOI 10.1007/s11916-026-01542-z · Reviews and meta-analyses

  5. Recombinant human Thymosin β4 ameliorates experimental colitis and intestinal fibrosis through suppression of mineralocorticoid receptor signaling.

    Molecular biomedicine · August 17, 2026 · Animal study · cited 0 times · open access

    PMID 42606759 · DOI 10.1186/s43556-026-00539-9 · Animal studies

  6. Thymosin β4 Mitigates Acute Cerebral Infarction Via Inhibition of the TLR4/NF-κB Pathway and Suppression of Neuronal Pyroptosis.

    Applied biochemistry and biotechnology · August 13, 2026 · Animal study · cited 0 times

    PMID 42593616 · DOI 10.1007/s12010-026-05867-8 · Animal studies

  7. Peptide Supplements and Their Therapeutic Applications in Sports Medicine.

    The American journal of sports medicine · August 11, 2026 · Review · cited 1 times · open access

    PMID 42578445 · DOI 10.1177/03635465261464420 · Reviews and meta-analyses

  8. Thymosin β4 alleviates sepsis-associated acute kidney injury by suppressing MAPK signaling pathway.

    Clinical science (London, England : 1979) · August 1, 2026 · Animal study · cited 1 times · open access

    PMID 42417058 · DOI 10.1042/cs20261084 · Animal studies

  9. Effects of BPC-157 and TB-500 on Achilles tendon healing in rats: A histopathological and biomechanical study.

    Joint diseases and related surgery · July 23, 2026 · Animal study · cited 0 times · open access

    PMID 42542926 · DOI 10.52312/jdrs.2026.2951 · Animal studies

  10. Understanding the effects of ciprofloxacin on corneal epithelial cells: a study using electric cell-substrate impedance sensing (ECIS) technology.

    Experimental eye research · July 10, 2026 · In vitro study · cited 0 times · open access

    PMID 42431294 · DOI 10.1016/j.exer.2026.111162 · In vitro studies

Browse all 968 publications in the dashboard

How this is counted

PubMed records matched by the names below, counted when the peptide is in the title, indexed by MeSH, or confirmed from the abstract. The exact query can be rerun on Europe PMC. Methodology

Search terms: Full-length thymosin beta-4; Tβ4; Tbeta4; Thymosin beta 4; Timbetasin

((TITLE_ABS:"Full-length thymosin beta-4" OR CHEM:"Full-length thymosin beta-4" OR TITLE_ABS:"Full-length thymosin beta4" OR CHEM:"Full-length thymosin beta4") OR (TITLE_ABS:"Tβ4" OR CHEM:"Tβ4" OR TITLE_ABS:"Tbeta4" OR CHEM:"Tbeta4" OR TITLE_ABS:"Tbeta 4" OR CHEM:"Tbeta 4") OR (TITLE_ABS:"Tbeta4" OR CHEM:"Tbeta4" OR TITLE_ABS:"Tbeta 4" OR CHEM:"Tbeta 4") OR (TITLE_ABS:"Thymosin beta 4" OR CHEM:"Thymosin beta 4" OR TITLE_ABS:"Thymosin beta4" OR CHEM:"Thymosin beta4") OR (TITLE_ABS:"Timbetasin" OR CHEM:"Timbetasin")) AND SRC:MED

Cite this page

Peptide Library. (2026, November 2). Thymosin β4 (Tβ4) research statistics (Version weekly-2026-11-01) [Statistic]. Peptide Library. https://peptidelibrary.app/research/peptides/thymosin-beta-4