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Zadaxin
Zadaxin is a Small molecule drug developed by Replicor Inc.. It is currently in Phase 1 development. Also known as: thymosin alpha 1, Thymosin α1.
Zadaxin is a protein-based treatment that has been studied in clinical trials for various conditions, including lung cancer and end-stage renal disease. Its mechanism of action is currently unknown, according to verified information.
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Baseline phase 1 → approval rate
+9.6pp
Industry-wide phase 1 drugs reach approval ~9.6% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
| Regulator | Country | Likely year | Lag vs FDA |
|---|---|---|---|
| FDA | US | 2033–2036 | — |
| EMA | EU | 2034–2037 | +0.7 yr |
| MHRA | GB | 2034–2037 | +0.7 yr |
| Health Canada | CA | 2034–2038 | +0.9 yr |
| TGA | AU | 2034–2038 | +1.2 yr |
| PMDA | JP | 2034–2038 | +1.5 yr |
| NMPA | CN | 2035–2039 | +2.3 yr |
| MFDS | KR | 2034–2038 | +1.4 yr |
| CDSCO | IN | 2034–2039 | +1.8 yr |
| ANVISA | BR | 2035–2039 | +2.3 yr |
Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).
Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.
At a glance
| Generic name | Zadaxin |
|---|---|
| Also known as | thymosin alpha 1, Thymosin α1 |
| Sponsor | Replicor Inc. |
| Modality | Small molecule |
| Therapeutic area | Other |
| Phase | Phase 1 |
Approved indications
Common side effects
Key clinical trials
- Phase II Trial of Neoadjuvant Thymalfasin, PD-1 Inhibitor, and Chemoradiotherapy for cStage III GEJ Adenocarcinoma (PHASE2)
- Efficacy and Safety of Anti-PD-1, Thymalfasin, and SOX in Neoadjuvant Treatment of cStage III Gastric/Gastroesophageal Junction Adenocarcinoma (PHASE2)
- AI-assisted Subtyping-directed Precision Treatment in Acute Aortic Dissection (NA)
- The Safety, Tolerability, and Efficacy of KD01 in Gynecologic Malignancies (PHASE1)
- A Study Evaluating Neoadjuvant Chemotherapy, Concurrent Chemoradiotherapy Combined With Dual Immune Checkpoint Blockade in Patients With Locally Advanced Non-Small Cell Lung Cancer (PHASE2)
- Protective Effect of Ulinastatin and Thymosin α1 Against Negative Immune Dysregulation and Organ Dysfunction After Acute Aortic Dissection Surgery (PANDA XI) (NA)
- The Impact of Thymosin α-1 on the Efficacy of Concurrent Chemoradiotherapy Followed by Immunotherpay Consolidation for Locally Advanced NSCLC (PHASE2)
- Thymosin Alpha 1 to Prevent COVID-19 Infection in Renal Dialysis Patients (PHASE2)
Primary sources
Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.
| Source | Used for |
|---|---|
| ClinicalTrials.gov | Trial enrolment, design, endpoints, results |
Competitive intelligence
For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:
- Zadaxin CI brief — competitive landscape report
- Zadaxin updates RSS · CI watch RSS
- Replicor Inc. portfolio CI
Frequently asked questions about Zadaxin
What is Zadaxin?
Who makes Zadaxin?
Is Zadaxin also known as anything else?
What development phase is Zadaxin in?
Related
- Manufacturer: Replicor Inc. — full pipeline
- Therapeutic area: All drugs in Other
- Also known as: thymosin alpha 1, Thymosin α1
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing