TFA-01 | Non-steroid canine osteoarthritis programView development progress

TFA EVIDENCE LIBRARY

Science and intellectual property

Published Antcin A research, preliminary study data, and patents across four jurisdictions—with public-source links.

PEER-REVIEWED · PATENT RECORDS
PEER-REVIEWED · PATENT RECORDS
Evidence boundaries

Preclinical research does not establish clinical benefit, and patents do not imply drug approval. Each item states its limits.

HOW TO READ THE EVIDENCE

Start with the molecule, model and conclusion

Each summary follows the original publication and does not replace it.

01

Keep molecules distinct

Antcin A, Antcin K and Antrocin are different compounds. Findings for one cannot be applied to another.

02

Label every model

General cell models, Caco-2 absorption models, animal studies, and human evidence represent different levels; each publication is labeled accordingly.

03

Stay within the paper

Mechanistic signals are not described as clinical benefit, and exploratory findings are not described as approved uses.

DEVELOPMENT EVIDENCE MAP

One TFA-01 evidence path

Each of six milestones states what is supportable and where the evidence boundary remains.

01

Molecule, mechanism & rights

Published foundation / program validation underway

Published studies support GR/GRα-related signaling for Antcin A in defined models. TFA-01 test-article, batch and indication bridging remains underway.

Next milestoneComplete candidate test-article and batch definition and strengthen program-level pharmacology relevant to canine osteoarthritis.BoundaryAvailable studies do not establish direct biochemical binding between Antcin A and GR, canine or human clinical efficacy, program-specific pharmacokinetic parameters, or drug approval.View progress details
02

CMC & controlled supply

Source foundation in place / specifications and batch bridging underway

Research across dozens of strains and content profiles is being connected to controlled cultivation, source selection, purification, analytics and formulation development.

Next milestoneComplete physicochemical validation of the nano-enabled clear aqueous formulation, then advance formal specifications, batch consistency and process scale-up.BoundaryFormal specifications, COAs, batch consistency, commercial scale-up and GMP validation are not complete. The nano-enabled clear aqueous formulation remains under physicochemical validation and is not a final dosage form.View progress details
03

Safety & toxicology

14-day preliminary toxicology report available / formal work underway

A 14-day preliminary toxicology study in female rats is complete and a report is available to inform later study design. Target-animal safety, toxicology and residue work continues.

Next milestoneComplete subsequent formal regulatory toxicology reports and establish a program-specific safety range for the purified candidate drug substance and final product.BoundaryThe preliminary screen was not GLP regulatory toxicology or a long-term safety study. It does not establish canine safety, long-term safety, or the safety of purified Antcin A or a final product.View progress details
04

Canine OA clinical development

Exploratory observation completed / formal study to be established

The Shanghai Pet GCP Clinical Trial Team completed a two-week exploratory observation in 15 dogs. It can inform later protocol design but does not establish efficacy.

Next milestoneComplete a standardized canine osteoarthritis study with a full protocol, prespecified endpoints and a statistical analysis plan.BoundaryThe exploratory observation lacks the full protocol, prespecified endpoints and statistical analysis needed for confirmatory conclusions. It does not establish clinical efficacy or safety, equivalence to dexamethasone, or superiority over dexamethasone.View progress details
05

Regulatory & commercialization

Taiwan advancing / U.S. CVM planning

Taiwan veterinary-drug data integration continues while the U.S. CVM path is being planned. Partnership and licensing evaluation will follow the maturity of the evidence.

Next milestoneObtain clear regulatory feedback on study design, process specifications and remaining data gaps, then form an executable submission plan.BoundaryRegulatory acceptance, application acceptance, drug approval, launch timing and commercial outcomes have not been established.View progress details

CORE PUBLISHED LITERATURE

Core research relevant to Antcin A

Six core studies, ordered by year and evidence level.

Antcin ACell and computational models

GR-related anti-inflammatory mechanism

View study summary and boundary

Chen YC et al. Antcin A, a steroid-like compound from Antrodia camphorata, exerts anti-inflammatory effect via mimicking glucocorticoids. Acta Pharmacologica Sinica. 32(7):904–911. DOI 10.1038/aps.2011.36.

What the study reported
Cell experiments reported GR nuclear translocation; molecular docking offered only a computational hypothesis for possible interaction.
Evidence boundary
No animal or human efficacy data were reported. The study does not establish direct binding, clinical equivalence to steroids or the absence of steroid-related adverse effects.
PubMed
AntcinsCaco-2 absorption model

Caco-2 cell permeability

View study summary and boundary

Wang Q et al. Intestinal Absorption of Ergostane and Lanostane Triterpenoids from Antrodia cinnamomea Using Caco-2 Cell Monolayer Model. Natural Products and Bioprospecting. 5(5):237–246. DOI 10.1007/s13659-015-0072-4.

What the study reported
The Caco-2 intestinal cell model indicated passive transcellular transport characteristics for several antcins, including Antcin A.
Evidence boundary
This was an in vitro intestinal model, not a human absorption or pharmacokinetic study.
PMC
Antcin ACell and mouse models

GRα / miR-708 / NF-κB pathway

View study summary and boundary

Kumar KJS et al. MicroRNA-708 activation by glucocorticoid receptor agonists regulate breast cancer tumorigenesis and metastasis via downregulation of NF-κB signaling. Carcinogenesis. 40(2):335–348. DOI 10.1093/carcin/bgz011.

What the study reported
Breast cancer cell and mouse xenograft models indicated that Antcin A modulated NF-κB-related tumor markers through the GRα / miR-708 pathway.
Evidence boundary
This was preclinical research, not evidence of human cancer treatment.
PubMed
Antcin AIn vitro cell model

EMT, migration and invasion research

View study summary and boundary

Kumar KJS et al. Antcin-A Modulates Epithelial-to-Mesenchymal Transition and Inhibits Migratory and Invasive Potentials of Human Breast Cancer Cells via p53-Mediated miR-200c Activation. Planta Medica. 85(9–10):755–765. DOI 10.1055/a-0942-2087.

What the study reported
The study reported modulation of the p53 / miR-200c / ZEB1 axis and reductions in EMT-, migration- and invasion-related measures in breast cancer cells.
Evidence boundary
This was an in vitro cell study with no animal or human efficacy data.
PubMed
Multiple antcinsHuman epithelial cells

Exploratory ACE2-related research

View study summary and boundary

Kumar KJS et al. Antcins from Antrodia cinnamomea and Antrodia salmonea Inhibit Angiotensin-Converting Enzyme 2 (ACE2) in Epithelial Cells. Plants. 10(8):1736. DOI 10.3390/plants10081736.

What the study reported
Several antcins, including Antcin A, reduced ACE2 expression or activity in cultured human epithelial cells.
Evidence boundary
No live virus or human trial was used; the findings do not establish antiviral activity or COVID-19 prevention.
PMC
Antcin A / multiple triterpenoidsMurine macrophage cells

Triterpenoid structure and anti-inflammatory activity

View study summary and boundary

Yang X et al. Structure and Anti-Inflammatory Activity Relationship of Ergostanes and Lanostanes in Antrodia cinnamomea. Foods. 11(13):1831. DOI 10.3390/foods11131831.

What the study reported
The study compared triterpenoid structures and anti-inflammatory activity in RAW264.7 cells, with mechanistic work focused mainly on Antcin A modulation of NF-κB, iNOS, COX-2 and inflammatory cytokines.
Evidence boundary
This was an in vitro murine cell study and cannot establish efficacy in dogs, cats or humans.
PMC
PRELIMINARY STUDY DATA

Two preliminary datasets informing later study design

Both are preliminary and do not establish clinical safety, efficacy, equivalence or superiority.

COMPANY-REPORTED PRELIMINARY SAFETY DATA

14-day preliminary toxicology report in female rats

The Company completed a 14-day preliminary TF-15 toxicology study in female rats and holds the report; test-article and batch bridging to current TFA-01 remains incomplete.

14-day preliminary toxicology report available · Formal regulatory toxicology continues

View study design and principal observations

Study design

14 daysOnce-daily oral gavage
24 ratsFemale Sprague-Dawley rats
4 groupsControl plus three dose groups
PreliminaryDose screen, not full regulatory toxicology

Limited screening endpoints

Public-summary scope
01
Clinical observation

Mortality, appearance and visible clinical signs

02
Body weight

Before and during the study

03
Limited serum chemistry

BUN, AST and ALT

04
Liver and kidney

Gross exam, organ weights and histopathology

Principal observations

01

Within the 14-day limited observation scope, the company-held report recorded no deaths, abnormal clinical signs or clear test-article-related adverse findings.

02

The result informs dose design for later formal studies only; it does not establish long-term or cross-species safety.

Preliminary result14-day preliminary toxicology report available

The company-held report supports that the 14-day preliminary toxicology study was completed. Dose selection, test-article identity and regulatory applicability require formal study confirmation.

Study limitations

This 14-day screen in 24 female rats used limited endpoints. It was neither GLP regulatory toxicology nor a long-term safety study, and it does not establish long-term safety, canine safety, or the safety of purified Antcin A drug substance or a final product. Formal toxicology, residue, and target-animal safety work continues.

Source: Company-held preliminary toxicology report. This page presents only a curated public summary and the required limitations.

INTELLECTUAL PROPERTY

Four-jurisdiction patent portfolio

The portfolio covers cultivation methods and porous-carrier technology; official registers govern ownership, legal status and family relationships.

Patent scope

TFA exercises relevant platform rights under the publicly filed cooperation agreement. Patents do not establish TFA-01 efficacy or approval.

View the four patent records and scope
Taiwan invention patent certificate I73510601 · TW
Taiwan

I735106

Invention patent · Granted

Antrodia cinnamomea cultivation method and porous carrier for cultivating Antrodia cinnamomea

Cultivation methods, a porous carrier, a nutrient layer and coating, and a controlled pathway for fruiting-body cultivation.

Public patent record
China invention patent certificate CN113115682B02 · CN
China

CN113115682B

Invention patent · Granted

Antrodia cinnamomea cultivation method and porous carrier for cultivating Antrodia cinnamomea

Covers cultivation-method and porous-carrier technology.

Public patent record
Japan patent certificate No. 743035603 · JP
Japan

JP7430356B2

Invention patent · Granted

Antrodia cinnamomea cultivation method and porous carrier for cultivating Antrodia cinnamomea

Covers cultivation-method and porous-carrier technology.

Public patent record
United States patent US 12,471,542 B2 front page04 · US
United States

US 12,471,542 B2

Utility patent · Granted

Antrodia cinnamomea cultivation method and porous carrier for cultivating Antrodia cinnamomea

Covers cultivation-method and porous-carrier technology.

Public patent record

From research to controlled manufacturing and drug development

Published research provides the molecular foundation; patent and process work supports source control, quality studies and future scale-up for TFA-01.

View TFA-01