| Drug Type Small molecule drug | 
| Synonyms TQC 3721, TQC-3721, TQC3721 | 
| Target | 
| Action inhibitors | 
| Mechanism PDE3 inhibitors(Phosphodiesterase 3 inhibitors), PDE4 inhibitors(Phosphodieterase 4 inhibitors) | 
| Therapeutic Areas | 
| Inactive Indication | 
| Originator Organization | 
| Active Organization | 
| Inactive Organization- | 
| License Organization- | 
| Drug Highest PhasePhase 3 | 
| First Approval Date- | 
| RegulationBreakthrough Therapy (China) | 
| Indication | Highest Phase | Country/Location | Organization | Date | 
|---|---|---|---|---|
| Moderate chronic obstructive pulmonary disease | Phase 3 | China  | 06 Aug 2025 | |
| Severe chronic obstructive pulmonary disease | Phase 3 | China  | 06 Aug 2025 | |
| Asthma | Phase 1 | China  | 18 Oct 2021 | 





