Assessment of the Safety, Tolerability and Pharmacodynamics After Administration of One Dose of AZD8601 to Male Patients With Type II Diabetes Mellitus (T2DM)

1. Provision of signed and dated, written informed consent prior to any study specific procedures.
2. Male patients with mild T2DM aged 18 to 65 years with suitable veins for cannulation or repeated venipuncture.
3. Have a body mass index (BMI) between 20 and 35 kg/m2 inclusive and weigh at least 50 kg.
4. Able to understand, read and speak the German language.
5. T2DM diagnosis for at least 1 year at the time of the screening visit.
6. T2DM treated with diet and exercise alone or with up to 2 oral anti-diabetic drugs.
7. Have stable glycemic control indicated by no changed treatment within 3 months prior to enrolment.
8. Hemoglobin A1c less than 10.5% at screening (HbA1c value according to international Diabetes Control and Complications Trial standard).
9. Fasting plasma glucose ≤ 11.0 mmol/L at screening.
10. Provision of signed, written and dated informed consent for optional genetic/biomarker research.

Exclusion Criteria:

1. History of any clinically significant disease or disorder which, in the opinion of the PI, may either put the patient at risk because of participation in the study, or influence the results or the patient's ability to participate in the study.
2. Any clinically significant illness, medical/surgical procedure, or trauma within 4 weeks of the before Day -1

3. Any clinically significant abnormalities in clinical chemistry, hematology or urinalysis results at screening and check-in, as judged by the PI.

   The following strict criteria will apply at the time of screening and on Day -1:

   • Alanine aminotransferase (ALT), aspartate aminotransferase (AST) > 2 times the upper limit of the normal laboratory range
   • Hemoglobin \< 11 g/dL and/or neutrophils \< 1500/mm3 and/or platelets \< 100 000/mm3
   • Creatinine > 1.2 x upper limit of normal (ULN)
4. Uncontrolled or inadequately controlled hypertension at the time of screening and/or on Day -1 with a resting systolic or diastolic BP > 150 mmHg or > 95 mmHg, respectively. Patients with heart rate \< 50 bpm at screening and on Day -1 will be excluded.
5. Any clinically significant abnormalities on 12-lead ECG at screening as judged by the PI.
6. Any patient with QT interval corrected for heart rate using Fridericia's formula (QTcF) > 450 ms at screening should be excluded.
7. Any positive result on screening for serum hepatitis B surface antigen (HBsAg), anti-hepatitis B core (HBc) antibody, hepatitis C antibody and human immunodeficiency virus (HIV) antibody.
8. Has received another new chemical entity (defined as a compound which has not been approved for marketing) within 3 months of Day -1 of this study. The period of exclusion begins 3 months after the final dose from a previous study or 1 month after the last visit, whichever is longer. 9. Plasma donation within 1 month of screening or any blood donation/loss more than 400 mL during the 3 months prior to screening.

10. Current smokers or those who have smoked or used nicotine products within the previous 1 year cotinine below the cut-off of the local laboratory).

11. Positive screen for drugs of abuse, cotinine or alcohol at screening or admission to the study center.

12. Known or suspected history of alcohol or drug abuse or excessive intake of alcohol as judged by the PI.

13. Use of any prescribed or non-prescribed medication including antacids, analgesics (other than paracetamol/ acetaminophen), herbal remedies, mega-dose vitamins (intake of 20 to 600 times the recommended daily dose) and minerals during the 2 weeks prior to admission or longer if the medication has a long half-life.

Patients with T2DM can be on 1 to 2 anti-diabetic medications but need the medication to be on stable doses for at least 3 months. Patients with T2DM can also be on medications for comorbidities such as hypertension, dyslipidemia, hyperuricemia, thyroid disorders, benign prostate hyperplasia etc. (e.g. diuretics, statins, allopurinol, thyroxin) but need to be on a stable dose for at least 3 months.

14. Involvement of any AstraZeneca or study site employee or their close relatives.

15. Judgment by the PI that the patient should not participate in the study if they have any ongoing or recent (i.e., during the screening period) minor medical complaints that may interfere with the interpretation of study data or are considered unlikely to comply with study procedures, restrictions and requirements.

16. Vulnerable patients, e.g., kept in detention, protected adults under guardianship, trusteeship or committed to an institution by governmental or juridical order.

17. Reports a significant history of allergy to soaps, lotions, emollients, ointments, creams, cosmetics, adhesives or latex.

18. Reports a history of significant skin conditions or disorders, for example, psoriasis, atopic dermatitis, etc.

19. Reports a history of significant dermatologic cancers, for example, melanoma or squamous cell carcinoma. Basal cell carcinomas that were superficial or successfully removed or treated, and do not involve the investigative site are acceptable.

20. Presence of forearm tattoo(s). 21. History of metabolic acidosis, including diabetic ketoacidosis within 1 year prior to screening.

22. History of myocardial infarction, stroke, or heart failure requiring hospitalization within 6 months prior to the time of screening, history or presence of clinically significant diabetic retinopathy, history or presence of macular edema likely to require LASER treatment within the study period.

23. Uncontrolled cardiovascular, hepatic, neurological or endocrine disease. 24. Use of insulin, glitazones, warfarin and amiodarone within 3 months before enrolment and use of potent CYP450 inhibitors, e.g., ketoconazole and macrolide antibiotics within 14 days before screening.

25. Use of anabolic steroids and systemic treatment with glucocorticoids within 3 months before screening.

26. Excessive intake of caffeine containing drinks or food (e.g., coffee, tea, chocolate), as judged by the PI 27. Patients who cannot communicate reliably with the PI. In addition, any of the following is regarded as a criterion for exclusion from the genetic research: 28. Previous bone marrow transplant 29. Non-leukocyte depleted whole blood transfusion within 120 days of the date of the genetic sample collection