Please assess the completion status of the following clinical trial:

Trial Title: A Study Of The Effects Of OC000459 In Subjects Known To Suffer From Grass Pollen Induced Allergic Rhinitis

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Males aged 18 to 50 years with a history of symptoms of grass pollen related allergic rhinitis within the previous two years.~* Subjects must be free from significant cardiac, pulmonary, gastrointestinal, hepatic, renal, haematological, neurological and psychiatric disease as determined by history, physical examination and screening investigations.~* FEV1 within normal limits (≥90% of predicted).~* Atopy defined by a positive cutaneous response to mixed grass pollen within the last 12 months or at screening.~* Asymptomatic at screening~* Non smokers for at least the past 12 months~Exclusion Criteria:~* Medical conditions likely to affect the outcome of the study.~* Nasal conditions likely to affect the outcome of the study, i.e. nasal septal perforations, nasal polyps, sinus disease, chronic nasal obstruction, or other nasal diseases.~* Presence of any respiratory disease other than a history of mild stable asthma not requiring treatment and associated with normal lung function~* Immunotherapy treatment course including inhaled or local corticosteroids in the past 28 days.

- Gender: MALE
- Minimum Age: 18 Years
- Maximum Age: 50 Years
- Healthy Volunteers: f

Study Arms:
- OC000459 (Type: EXPERIMENTAL): None
- Placebo (Type: PLACEBO_COMPARATOR): None

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