Investigation of Potential Additive Inhibitory Effects on HPA-Axis of Ciclesonide Nasal Spray When Administered Concomitantly With Orally Inhaled Beclomethasone Dipropionate (HFA-BDP) in Patients With Perennial Allergic Rhinitis (PAR) (BY9010/M1-408)

Inclusion Criteria:

1. Male or female, 18 - 60 years of age.

2. General good health, and free of any concomitant conditions or treatment that could
interfere with study conduct, influence the interpretation of study
observations/results, or put the patient at increased risk during the trial.

3. A history of PAR for a minimum of one year immediately preceding the Screening Visit.

4. A demonstrated sensitivity to at least one allergen known to induce PAR through a
standard prick or intradermal test. A positive test is defined as a wheal diameter at
least 3 mm larger than the control wheal for the prick test, and 7 mm or greater than
the control for the intradermal test. Documentation of a positive result within 12
months prior to the Screening Visit is acceptable.

5. Females of child-bearing potential are currently taking and will continue to use a
medically reliable method of contraception for the entire study duration (e.g. oral,
injectable, trans-cutaneous or implantable contraceptives or intrauterine devices or
double-barrier protection). Women of childbearing potential, or less than 1 year
postmenopausal, will require a negative plasma pregnancy test at the Screening Visit
as well as at last on-treatment visit.

6. Capable of understanding the requirements, risks, and benefits of study
participation, and, as judged by the investigator, capable of giving informed consent
and compliance with all study requirements (visits, record keeping, etc).

7. Normal body weight as evidenced by a Body Mass Index (BMI) between ³ 18 and 31 kg/m²,
and a body weight > 45 kg.

Exclusion Criteria:

1. Pregnancy, nursing, or plans to become pregnant or donate gametes (ova or sperm) for
in vitro fertilization during the study period or for 30 days following the study
period.

2. History or physical findings of nasal pathology, including nasal polyps (within the
last 60 days) or other clinically significant respiratory tract malformations, recent
nasal biopsy (within the last 60 days), nasal trauma, or surgery and atrophic
rhinitis or rhinitis medicamentosa (within the last 60 days).

3. Participation in any investigational drug trial within the 30 days preceding the
Screening Visit (S0).

4. A known hypersensitivity to any corticosteroid or any of the excipients in the
formulations.

5. History or current evidence of clinically relevant allergies or idiosyncrasy to drugs
or food.

6. History of alcohol or drug abuse within the preceding two years.

7. History of a positive test for HIV, hepatitis B or hepatitis C.

8. Use of any prohibited concomitant medications within the prescribed (per protocol)
withdrawal periods prior to the Screening Visit (S0) and during entire study
duration.

9. Previous participation in an intranasal ciclesonide study.

10. Non-vaccinated exposure to or active infection with, chickenpox or measles within the
21 days preceding the Screening Visit (S0).

11. Exposure to corticosteroids for any indication, chronic or intermittent (e.g.:
asthma, contact dermatitis), during the past 2 months, or presence of an underlying
condition that can reasonably be expected to require treatment with corticosteroids
during the course of the study.

12. Use of topical corticosteroids in concentrations in excess of the equivalent of 1%
hydrocortisone for dermatological conditions during the past 1 month, or presence of
an underlying condition that can reasonably be expected to require treatment with
such preparations during the course of the study.

13. Clinically relevant abnormalities in clinical chemical, hematological or any other
laboratory variables.

14. Chronic or clinically relevant acute infections.

15. Vegetarian diet or other unusual dietary habits that would preclude the subject's
acceptance of standardized meals.

16. Blood donation within the last 30 days before start of the study.

17. Patients that do not have regular sleep patterns (e.g. working at night and sleeping
during the daylight hours).

18. Active asthma requiring treatment with inhaled or systemic corticosteroids;
intermittent use of beta agonists is acceptable.

19. History of a respiratory infection or disorder [including, but not limited to
bronchitis, pneumonia, the common cold, acute or chronic sinusitis, flu, severe acute
respiratory syndrome (SARS)] within the 14 days preceding the Screening Visit (S0),
or development of a respiratory infection during the Run-in Period.

20. Use of antibiotic therapy for acute conditions within 14 days prior to the Screening
Visit (S0). Low doses of antibiotics taken for prophylaxis are permitted if the
therapy was started prior to the Screening Visit (S0) AND is expected to continue
throughout the trial.

21. Initiation of immunotherapy during the study period or dose escalation during the
study period. However, initiation of immunotherapy 90 days or more prior to the
Screening Visit (S0) AND use of a stable (maintenance) dose (30 days or more) may be
considered for inclusion.

22. Failure to adequately understand and comply with the HFA-BDP instructions or failure
to properly administer study medication.