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Slit One ragweed

ASST Fatebenefratelli Sacco · Phase 3 active Biologic

Slit One ragweed is a sublingual immunotherapy that desensitizes the immune system to ragweed allergen through gradual exposure under the tongue.

Slit One ragweed is a sublingual immunotherapy that desensitizes the immune system to ragweed allergen through gradual exposure under the tongue. Used for Ragweed pollen-induced allergic rhinitis and/or allergic asthma.

At a glance

Generic nameSlit One ragweed
Also known asSlitone (Alk Abello)
SponsorASST Fatebenefratelli Sacco
Drug classSublingual immunotherapy (SLIT)
TargetRagweed allergen (Amb a 1 and related epitopes)
ModalityBiologic
Therapeutic areaImmunology / Allergy
PhasePhase 3

Mechanism of action

This is an allergen immunotherapy product designed to induce immune tolerance to ragweed pollen by delivering small, gradually increasing doses of ragweed allergen extract sublingually. The mechanism involves shifting the immune response from Th2-mediated allergic inflammation toward Th1/Treg-mediated tolerance, reducing allergic symptoms upon natural allergen exposure.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results