Please assess the completion status of the following clinical trial:

Trial Title: Safety and Efficacy of a Sublingual Specific Immunotherapy With an Extract of a Six Grass Pollen Mixture

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~Rhinitis, Rhinoconjunctivitis, Positive Rast result to grass pollen, Positive skin prick test to grass pollen, Positive specific provocation to grass pollen,~Exclusion Criteria:~Serious chronic diseases, Other perennial allergies

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: f

Study Arms:
- Placebo (Type: PLACEBO_COMPARATOR): Placebo was given the same way as a sublingual preparation.
- Liquid formulation of an extract of a 6 grass pollen mixture (Type: EXPERIMENTAL): Sublingual application containing allergen extracts of 6 grass pollen species (Holcus lanatus, Dactylus glomerata, Lolium perenne, Phleum pratense, Poa pratensis, Festuca pratensis) pollen allergen extract.~The study solution was applied sublingually, kept under the tongue for 3 minutes, and swallowed thereafter. Initial treatment was applied on the first day of treatment with a starting dose of 25% of the maintenance dose. Increasing doses of 50% were applied with the second and 100% with the third dose to give the maximum (=maintenance) dose. This was followed by a daily patient selfadministered treatment with the maintenance dose.

Based on this trial design, predict the completion outcome and termination type (if applicable).