Drugs / Thymalfasin
last change Jan 2026 re-read 3 minutes ago

Thymalfasin

also known as thymosin alpha 1 · Ta1 · ZADAXIN

Peptide

Developed for
chronic hepatitis C virus infection · colorectal cancer · COVID-19 · hepatocellular carcinoma · HIV infectious disease · non-small cell lung carcinoma · aortic disorder · chronic hepatitis B virus infection
+9 more · esophageal cancer · gastric cancer · gastroesophageal junction adenocarcinoma · hematopoietic and lymphoid cell neoplasm · lung cancer · lymphopenia · neoplasm · pancreatic ductal adenocarcinoma · small cell lung carcinoma
Investigated by
SciClone Pharmaceuticals · Zhejiang Provincial People's Hospital · Beijing Friendship Hospital · Peking Union Medical College Hospital · Beijing Anzhen Hospital · Davita Clinical Research
+20 more · Fujian Medical University Union Hospital · Hangzhou Cancer Hospital · Jia Fan · Nanjing Medical University · National Institute of Allergy and Infectious Diseases (NIAID) · Peking University People's Hospital · Replicor Inc. · Rhode Island Hospital · Ruijin Hospital · Second Affiliated Hospital of Nanchang University · Second Affiliated Hospital of Soochow University · Shanghai East Hospital · Shanghai Public Health Clinical Center · The First Affiliated Hospital of Xiamen University · The First Affiliated Hospital with Nanjing Medical University · The Methodist Hospital Research Institute · The Third Affiliated Hospital of Soochow University · West China Hospital · William B. Ershler, MD · Zekuan Xu

Trials 23

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT04963712 Sep 2021 → Jul 2022 HIV infectious disease Shanghai Public Health Clinical Center Completed No outcome recorded
Phase 12 trials
Phase 1 NCT06821100 Dec 2024 → Dec 2026 expected — The Methodist Hospital Research Institute Recruiting No outcome recorded
Phase 1 NCT00001036 — HIV infectious disease National Institute of Allergy and Infectious Diseases (NIAID) Completed No outcome recorded
Phase 1/22 trials
Phase 1/2 NCT02906163 Oct 2016 → Dec 2019 lung cancer SciClone Pharmaceuticals Unknown No outcome recorded
Phase 1/2 NCT02646189 Aug 2011 → Aug 2013 chronic hepatitis B virus infection Replicor Inc. Completed No outcome recorded
Phase 214 trials
Phase 2 NCT06829355 Feb → Dec 2025 overdue colorectal cancer Beijing Friendship Hospital Recruiting No outcome recorded
Phase 2 NCT06584006 Sep 2024 → Nov 2027 expected hematopoietic and lymphoid cell neoplasm, lymphopenia The First Affiliated Hospital of Xiamen University Recruiting No outcome recorded
Phase 2 NCT06573398 Sep 2024 → Sep 2025 overdue pancreatic ductal adenocarcinoma Ruijin Hospital Not yet recruiting No outcome recorded
Phase 2 NCT06461910 Jun 2024 → Jan 2026 overdue gastric cancer, gastroesophageal junction adenocarcinoma Zekuan Xu Recruiting No outcome recorded
Phase 2 NCT06056804 Jan → Dec 2024 overdue — Beijing Friendship Hospital Active not recruiting No outcome recorded
Phase 2 NCT05790447 Apr 2023 → May 2025 neoplasm Second Affiliated Hospital of Soochow University Unknown No outcome recorded
Phase 2 NCT04428008 Jan 2021 → Jan 2023 COVID-19 William B. Ershler, MD Completed No outcome recorded
Phase 2 NCT04487444 Sep 2020 → Feb 2023 COVID-19 Rhode Island Hospital Terminated No outcome recorded Stop: Enrollment
Phase 2 NCT02906150 Sep 2016 → May 2019 non-small cell lung carcinoma SciClone Pharmaceuticals Unknown No outcome recorded
Phase 2 NCT02542930 Jan 2016 → Dec 2018 non-small cell lung carcinoma Zhejiang Provincial People's Hospital Withdrawn No outcome recorded Stop: Enrollment
Phase 32 trials
Phase 3 NCT00039962 May 2002 → ? chronic hepatitis C virus infection SciClone Pharmaceuticals Completed No outcome recorded
Phase 3 NCT00040027 Apr 2002 → ? chronic hepatitis C virus infection SciClone Pharmaceuticals Completed No outcome recorded
Phase 41 trial
Phase 4 NCT02281266 Jan 2015 → Jun 2018 hepatocellular carcinoma Jia Fan Unknown No outcome recorded
Phase not applicable1 trial
— NCT07382375 Dec 2027 expected aortic disorder Nanjing Medical University Not yet recruiting No outcome recorded
Comparator or background therapy1 trial
Phase 1 NCT06552598 Background Apr 2024 → Apr 2028 expected cervical cancer, endometrial cancer Tongji Hospital Recruiting No outcome recorded

Evidence & citations 7 cited values

Every value below carries the sentence it was read from. 24 sources stand behind the page.

FieldValueCited text
Known as Thymalfasin “Concurrent administration of thymalfasin and rhGM-CSF.” NCT06552598 ↗
21

NCT06821100 ↗

NCT04428008 ↗

NCT06461910 ↗

NCT02281266 ↗

NCT02535988 ↗

NCT06573398 ↗

NCT06829355 ↗

NCT06584006 ↗

NCT06056804 ↗

NCT02545751 ↗

Show 11 more sources

Known as Ta1 “Thymalfasin (Thymosin alpha 1, Ta1)” NCT02906150 ↗
3

“Thymalfasin (Thymosin alpha 1, Ta1)” NCT06829355 ↗

“Thymalfasin (Thymosin alpha 1, Ta1)” NCT06821100 ↗

“Thymalfasin (Thymosin alpha 1, Ta1)” NCT02906163 ↗

Known as thymosin alpha 1 “This is a randomized, double-blinded, multicenter trial to determine the effectiveness of thymosin alpha 1 (thymalfasin) 1.6 mg twice weekly plus PEGinterferon alfa-2a 180...” NCT00040027 ↗
6

“Thymalfasin (Thymosin alpha 1, Ta1)” NCT02906150 ↗

“Thymalfasin (Thymosin alpha 1, Ta1)” NCT06829355 ↗

“Thymalfasin (Thymosin alpha 1, Ta1)” NCT06821100 ↗

“Thymalfasin (Thymosin alpha 1, Ta1)” NCT02906163 ↗

“thymalfasin (thymosin alpha 1)” NCT00039962 ↗

“Thymalfasin (thymosin alpha-1)” NCT00082082 ↗

Known as ZADAXIN “ZADAXIN® (trade name; thymalfasin generic; Ta1 for short)” NCT06821100 ↗
2

NCT04963712 ↗

NCT02646189 ↗

Action Activate “beneficial clinical effects of Ta1 result from activation of toll-like receptor (TLR) 9” NCT04428008 ↗
Modality Peptide “Thymosin alpha 1 (Zadaxin™) is synthetically prepared thymosin alpha 1 polypeptide (28 amino acids, molecular weight 3108)” NCT02646189 ↗
Route Subcutaneous “will be administered subcutaneously Thymalfasin at dose of 1.6mg twice a week” NCT02281266 ↗