Clinical trials
Follow clinical development from study design and recruitment through results.
- Trial phase
- Status
- Readouts
Drug intelligence / Profile preview
huanghuahao pollen drops
- Development stage
- Phase 3
- Lead developer
- Wolwo Biotech
- Modality
- Subcutaneous Immunotherapy → Allergy Immunotherapy → Therapeutic Vaccines → Vaccines & Immunotherapeutics, Sublingual Immunotherapy → Allergy Immunotherapy → Therapeutic Vaccines → Vaccines & Immunotherapeutics
- Administration
- Sublingual
01
Overview
Huanghuahao pollen drops is a sublingual allergen immunotherapy (SLIT) developed by Zhejiang Wolwo Bio-Pharmaceutical for the treatment of seasonal allergic rhinitis caused by *Artemisia annua* (sweet wormwood) pollen. The product consists of a standardized extract of Huanghuahao pollen. By administering increasing doses of the allergen sublingually, the treatment aims to induce immunological tolerance, shifting the immune response from a Th2-mediated allergic reaction toward a Th1 and regulatory T-cell (Treg) response, thereby reducing symptoms and the need for rescue medication during pollen season. It was approved by the NMPA in China in 2021 for use in both adults and children.
- Brand names
- Changshi畅适
- Other names
- Artemisia annua pollen dropsHuanghuahao pollen sublingual drops黄花蒿花粉滴剂
02
Targets
BCR (Immunoglobulin G B Cell Receptor)Artemisia annua allergen-specific T-cell receptorIgE (Immunoglobulin E)
Beyond the preview
Go deeper on huanghuahao pollen drops.
Explore the evidence, development activity, and competitive landscape with Gosset’s full data platform.
Indications & development
Explore development by indication, patient population, and geography.
- Indications
- Development status
- Countries
Licensing & deals
Trace asset ownership, licensing agreements, and commercial partnerships.
- Partners
- Deal terms
- Milestones
Patents & exclusivity
Explore the patent landscape and regulatory exclusivity around an asset.
- Patents
- Expiration dates
- Exclusivity
Competitive landscape
Compare development programs by target, modality, and indication.
- Competing assets
- Targets
- Development stage
Research & analysis
Connect source evidence and development news to your research questions.
- Publications
- News
- Analysis
Bring the full picture into focus.
See how Gosset can support your research on huanghuahao pollen drops.