Adalimumab Microneedles in Healthy Volunteers

Inclusion Criteria: Eligible subjects must meet all of the following inclusion criteria at screening: 1. Healthy male / female subjects, 18 to 45 years of age, inclusive at screening; 2. Good health, based upon the results of medical history, physical examination, vital signs, ECG, and laboratory profiles of both blood and urine; 3. Body mass index (BMI) between 18 and 30 kg/m2, inclusive at screening, and with a minimum weight of 50 kg; 4. Willing to practice an approved method of birth control and not breastfeeding throughout the study and for five months after study drug administration, as advised in the drug formulary (2). If the trial subject is female, surgical sterilization or postmenopausal status for \>1 year will satisfy this requirement. All female subjects are required to have a negative pregnancy test at screening and at baseline (pre-dose); 5. Fitzpatrick skin type I-II (Caucasian type); 6. Suitable site for intradermal injection on the legs, as assessed by the investigator; 7. Able and willing to provide written informed consent. Exclusion Criteria: Eligible subjects must meet none of the following exclusion criteria at screening: 1. Immune-compromised (known or expected immune deficiency, disease, or use of medication that may affect the immune system); 2. Diagnosed with tuberculosis (TB, as per positive skin test \[Mantoux\] or interferon gamma release assay), or history of TB, or latent TB, or recent contact with TB (patient); having travelled to countries where TB is endemic within eight weeks of planned drug administration or planning to travel to countries where TB is endemic from the moment of drug administration until three months after the end of the study; 3. Any confirmed significant allergic reactions (urticaria or anaphylaxis) against any drug (including adalimumab); 4. History of chronic infection, or infections within the past two years requiring hospitalization or administration of intravenous antibiotics; 5. Receipt of any live vaccination within three months prior to study drug administration, or intention to undergo live vaccinations from the moment of drug administration until four months after the end of study; 6. Positive hepatitis B surface antigen (HBsAg), hepatitis C antibody (HCV Ab), or human immunodeficiency virus antibody (HIV Ab) at screening; 7. Evidence of any active or chronic disease (hematologic, renal, hepatic, cardiovascular, neurologic, endocrinal, gastrointestinal, oncologic, pulmonary, immunologic, or psychiatric disorder) or condition that could interfere with, or for which the treatment of might interfere with the conduct of the study, or that would pose an unacceptable risk to the subject in the opinion of the investigator (following a detailed medical history, physical examination, vital signs (systolic and diastolic blood pressure, and body temperature) and ECG). Minor deviations from the normal range may be accepted, if judged by the investigator to have no clinical relevance; 8. History of abuse of addictive substances (alcohol, illegal substances) or current use of more than 21 units alcohol per week, drug abuse, or regular user of sedatives, hypnotics, tranquillisers, or any other addictive agent; 9. Consumption of alcohol within the 48-hour period prior to study drug administration; 10. Smoke more than 10 cigarettes per day prior to screening or use tobacco products equivalent to more than 10 cigarettes per day and/or unable to abstain from smoking whilst in the unit; 11. Positive screen for recreational drugs or alcohol; 12. Is demonstrating excess in xanthine consumption (more than eight cups of coffee or equivalent per day); 13. Unlikely to comply with the study protocol and/or to complete the study or required study procedures, including being unlikely or unable to return for follow-up visits; 14. Use of any medication (prescription or over-the-counter (OTC) within 14 days of study drug administration, or use of herbal supplements, dietary supplements or multivitamins within 7 days of study drug administration or less than five half-lives (whichever is longer), or receipt of any drug by injection within 30 days of study drug administration, with the exception of contraceptives, hormonal replacement therapies, and paracetamol (up to 4g/day). Other exceptions will only be made if the rationale is clearly documented by the investigator; 15. Donation of over 500 mL of blood within three months prior to screening or donation of plasma within 14 days prior to screening; 16. Previous exposure to any biological; 17. Participation in an investigational drug or device study within 3 months prior to screening or more than 4 times in the past year; 18. Excessive sun exposure of the injection site area within 3 weeks of enrollment; 19. Consideration by the investigator, for any reason, that the subject is an unsuitable candidate to receive adalimumab or otherwise participate in the study.