Evaluating Relative Bioavailability of OC-01 (Varenicline) Nasal Spray as Compared to Orally Administered Varenicline

Inclusion Criteria

• Body mass index between 18.0 and 32.0 kg/m2, inclusive.
• Healthy as determined by a responsible and experienced physician, based on a medical evaluation including medical history, physical examination, ECG and laboratory tests.
• Have provided verbal and written informed consent
• If a female of childbearing potential who is not using an acceptable means of birth control (acceptable methods of contraception include: hormonal - oral, implantable, injectable, or transdermal contraceptives, mechanical - spermicide in conjunction with a barrier such as a diaphragm or condom, IUD, or surgical sterilization of partner), have a negative urine pregnancy test at the Screening Visit.

Exclusion Criteria

• Have had nasal or sinus surgery (including history of application of nasal cautery) or significant trauma to these areas.
• Have a vascularized polyp, severely deviated septum, chronic recurrent nosebleeds, or severe nasal airway obstruction as confirmed by intranasal examination at the Screening Visit.
• Any contraindication to varenicline according to the applicable label.
• Have severe renal impairment (estimated creatinine clearance less than 30mL per minute)
• Have current concomitant use of snuff, chewing tobacco, e-cigarettes or cigarettes/cigars during the study
• Have any condition or history that, in the opinion of the investigator, may interfere with study compliance, outcome measures, safety parameters, and/or the general medical condition of the subject
• Be a female who is pregnant, nursing an infant, or planning a pregnancy at the Screening Visit. Be a woman of childbearing potential who is not using an acceptable means of birth control; acceptable methods of contraception include: hormonal - oral, implantable, injectable, or transdermal contraceptives; mechanical - spermicide in conjunction with a barrier such as a diaphragm or condom; IUD; or surgical sterilization of partner.
• Be currently enrolled in an investigational drug or device study or have used an investigational drug or device within 30 days prior to the Screening Visit.