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

TFA-01 DEVELOPMENT

TFA-01: an investigational program for canine osteoarthritis

Centered on Antcin A, TFA-01 advances through molecule and rights, CMC, safety, canine osteoarthritis evidence, and regulatory and commercialization milestones. It remains investigational and is not approved.

TFA-01 · CANINE OA
TFA-01 · CANINE OA

LEAD PROGRAM · TFA-01

Lead focus: canine osteoarthritis

TFA is evaluating an Antcin A-centered investigational program as a potential non-steroid option for canine osteoarthritis.

Target indication
Canine osteoarthritis
Candidate molecule
Antcin A
Development category
Veterinary drug
Commercial status
Not approved

TFA-01 DEVELOPMENT FRAMEWORK

Five dimensions show where TFA-01 stands today

Each block separates the foundation already in place, work underway and the next verifiable milestone. The five dimensions are connected; progress in one reduces a defined risk but does not mean the product is approved.

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.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.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.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.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.View progress details

01 · Molecule, mechanism & rights

Antcin A is the starting point for drug development

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

Published foundation / program validation underway

Candidate
TFA-01
Core molecule
Antcin A
Chemical class
Non-steroid triterpenoid
Current stage
Investigational
Cooperation and licensing framework

Under a publicly filed cooperation agreement entered into in June 2026, TFA received exclusive worldwide development, commercialization and licensing rights for the Antcin A platform. Legal ownership of the platform assets remains with the platform rights holder identified in that agreement.

SEC 6-K
01

Foundation in place

TFA-01 is centered on Antcin A. Published studies provide mechanistic signals from cell, computational and preclinical models, while global platform rights are exercised under the publicly filed cooperation and licensing structure.

02

Work underway

Current TFA-01 test articles and batches are being connected to the published research context, with further translational pharmacology relevant to canine osteoarthritis.

03

Next milestone

Complete candidate test-article and batch definition and build a program-specific pharmacology package for later safety and clinical work.

Evidence boundary

Available studies do not establish direct biochemical binding between Antcin A and GR, canine or human clinical efficacy, program-specific pharmacokinetic parameters, or drug approval.

02 · CMC CORE ADVANTAGE

CMC connects a controlled source to a repeatable specification

For a naturally derived molecule, the challenge is not merely access to the compound; it is the ability to source, identify, purify and repeatedly manufacture it to a defined specification. TFA’s CMC path begins at the source and connects cultivation, candidate selection, analytics, purification, specifications and batch bridging.

TFA CMC CORE

TFA’s advantage is not simply access to Antcin A. It is the stepwise control chain connecting strain selection, controlled cultivation, composition analysis, purification and batch traceability.

Source foundation in place / specifications and batch bridging underway
01

Controlled cultivation

Technical foundation
02

Dozens of strains & content profiles

Data accumulated
03

Strain & process optimization

Continuing
04

Purification & analytical methods

In progress
05

Nano-enabled aqueous formulation

In development
06

Specifications & scale-up validation

Next milestone
FORMULATION WORK

Nano-enabled clear aqueous formulation

TFA is advancing nano-enablement and clear aqueous formulation work to improve the dispersion and formulation feasibility of lipophilic Antcin A in an aqueous system.

Feasibility and physicochemical validation underway

Aqueous solubility, clarity, particle size, uniformity and stability remain to be validated. A final dosage form or submission-ready formulation specification has not been established.

01

Foundation in place

TFA has accumulated research across dozens of strain sources and content profiles. Together with controlled cultivation, process optimization and granted cultivation-technology patents in four jurisdictions, this supports source-candidate selection.

02

Work underway

Current work covers Antcin A assay and identity analysis, research-scale purification, batch definition, and feasibility development for a nano-enabled clear aqueous formulation.

03

Next milestone

Validate aqueous solubility, clarity, particle size and stability; define formal specifications and a COA framework; and advance batch consistency, process scale-up, GMP and regulatory validation.

Evidence boundary

Formal 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.

Controlled cultivation & sourceDozens of strains & content profilesNano-enabled aqueous formulationCultivation IP in four jurisdictions

The public site states the research scale and development direction. Strain IDs, individual content results, cultivation parameters, selection criteria and purification conditions remain in confidential DD materials.

03 · Safety & toxicology

Safety & toxicology

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.

14-day preliminary toxicology report available / formal work underway

01

Foundation in place

The Company completed a 14-day preliminary TF-15 toxicology study in 24 female rats and holds the report, which can inform dose selection and design for later formal studies.

02

Work underway

Target-animal safety, toxicology and residue work continues and must be bridged to current TFA-01 test articles and batches.

03

Next milestone

Complete subsequent formal regulatory toxicology reports and establish a program-specific safety range for the purified candidate drug substance and final product.

Evidence boundary

The 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.

04 · Canine OA clinical development

Canine OA clinical development

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.

Exploratory observation completed / formal study to be established

01

Foundation in place

The 15-dog exploratory observation provides early study experience that can inform later formal trial design.

02

Work underway

Available observations are being used to plan clearer eligibility criteria, endpoints, assessment timing and statistical methods.

03

Next milestone

Complete a standardized canine osteoarthritis study with a full protocol, prespecified endpoints and a statistical analysis plan.

Evidence boundary

The 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.

Explore the 15-dog observation design
10

TFA-01 group

Two-week exploratory observation

5

Dexamethasone group

Exploratory comparator

15

Dogs observed

Two-week early observation

This limited exploratory observation does not include the complete protocol, prespecified endpoints and statistical package needed for confirmation; it cannot establish efficacy, long-term safety, clinical equivalence or comparative superiority.

05 · Regulatory & commercialization

Regulatory & commercialization

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.

Taiwan advancing / U.S. CVM planning

TAIWAN

Taiwan veterinary drug

Integrating CMC, safety and canine osteoarthritis work around the current pathway.

UNITED STATES

U.S. FDA CVM

Planning the data-gap review, advisory support and agency communication strategy.

PARTNERSHIPS

Partnerships & commercialization

Evaluating regional licensing, co-development and manufacturing as evidence matures.

01

Foundation in place

TFA has established a cross-market rights and cooperation framework and is organizing development data around Taiwan’s veterinary-drug pathway.

02

Work underway

CMC, safety and canine osteoarthritis work are being connected into a regulatory evidence path, while U.S. CVM advisory and agency communication are being planned.

03

Next milestone

Obtain clear regulatory feedback on study design, CMC specifications and remaining data gaps, and convert it into an executable submission plan.

Evidence boundary

Regulatory acceptance, application acceptance, drug approval, launch timing and commercial outcomes have not been established.

PLATFORM EXPANSION

Evaluating inflammatory conditions beyond canine osteoarthritis

LEAD PROGRAM

Canine osteoarthritis

The current primary development focus for TFA-01.

EXPLORATORY

Dermatitis

One potential future veterinary indication for evaluation.

EXPLORATORY

Feline stomatitis

A future research opportunity subject to scientific and clinical review.