A Phase I Study to Investigate the Effect of Hepatic Impairment of AZD9550 and AZD6234

A Phase I, Multicentre, Single-Dose, Non-Randomised, Open-Label, Parallel-Group Study to Investigate the Effect of Hepatic Impairment on the Pharmacokinetics, Safety, and Tolerability of AZD9550 and AZD6234

The purpose of this study is to examine the safety and tolerability of AZD6234 and AZD9550 in participants with hepatic impairment and participants with normal hepatic function.

Study Overview

• Status: Recruiting
• Conditions: Hepatic Impairment
• Intervention / Treatment: Drug: AZD6234; Drug: AZD9550

Detailed Description

This Phase I, open-label, parallel group study will investigate the single SC dose PK, safety, tolerability, and immunogenicity of separate administrations of AZD9550 and AZD6234 to male and female participants with severe and moderate hepatic impairment compared to matched controls with normal hepatic function.

To minimize any potential impact from AZD9550 administered in Period 1, AZD6234 will be administered in Period 2 following a washout period. Results from separate injections will ultimately inform the single dose PK, safety, and tolerability of AZD9550 and AZD6234 administered.

Approximately 56 participants will be screened to achieve a total of 16 planned for study intervention (8 per group for CP Class C and CP Class B) with 6 evaluable participants in each of the 2 impairment groups (severe and moderate), and up to 12 participants with normal hepatic function. Initially 8 participants with normal hepatic function will be recruited, matched on a group level regarding sex, age, and BMI to the participants with hepatic impairment. Additional participants with normal hepatic function, up to a total of 12, may be included if needed to meet the matching criteria.

Child-Pugh scoring will be used to determine the level of hepatic impairment. Participants will be enrolled into the following groups based on their CP classification score as determined by a local laboratory at screening:

Group 1: Participants with severe hepatic impairment (CP Class C, score of 10 to 15).

Group 2: Participants with moderate hepatic impairment (CP Class B, score of 7 to 9).

Group 3: Participants with normal hepatic function matched on a group level regarding sex, age, and BMI to the participants with hepatic impairment.

• Study Type: Interventional
• Enrollment (Estimated): 28
• Phase: Phase 1

Contacts and Locations

• Study Contact: Name: AstraZeneca Clinical Study Information Center; Phone Number: 1-877-240-9479; Email: information.center@astrazeneca.com

Study Locations

• United States
  • Arizona
    • Chandler, Arizona, United States, 85225
      • Recruiting
      • Research Site
  • California
    • Rialto, California, United States, 92377
      • Recruiting
      • Research Site
  • Florida
    • Miami Lakes, Florida, United States, 33014
      • Recruiting
      • Research Site
  • Texas
    • San Antonio, Texas, United States, 78215
      • Recruiting
      • Research Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria

1. Age 18-85 years at consent.

2. Groups:

   • Healthy controls: Medically healthy; no clinically significant findings in history, exam, labs, vitals, or 12 lead ECG (per investigator).
   • Hepatic impairment: Chronic (≥6 months), stable; documented Child Pugh B (Group 2) or C (Group 1).
3. Stable concomitant regimen ≥2 weeks before screening (Groups 1-2).
4. T2DM allowed if HbA1c <10% and no severe hypo/hyperglycaemia or hospitalisation within 6 months.
5. Body weight ≥50 kg; BMI 18-42 kg/m².
6. Sex assigned at birth (male/female); contraception per local regulations. Females of child bearing potential: negative pregnancy tests and condoms plus one highly effective method through 54 days post last dose. Males: condom use; no sperm donation through 54 days post last dose.
7. Written informed consent; separate consent for optional genomics.

Exclusion Criteria

Healthy controls only:

1. Any clinically significant disease; Diabetes;
2. lab values i) ALT/AST/ALP >1.5×ULN; ii) WBC/platelets <LLN; iii) haemoglobin <11.0 g/dL (female) or <12.0 g/dL (male); aPTT or PT/INR >1.2×ULN; iv) total bilirubin >1.5×ULN (or Gilbert's);
3. abnormal resting vital signs i) SBP >150 or <90 mmHg, ii) DBP >95 or <50 mmHg, iii) pulse ≥100 or ≤45 bpm;
4. QTcF >450 ms or clinically significant ECG abnormalities;
5. severe allergy/hypersensitivity;
6. major surgery within 30 days;
7. pancreatitis or pancreatic enzymes >2×ULN;
8. triglycerides >500 mg/dL (5.6 mmol/L);
9. calcitonin >50 ng/L (50 pg/mL);
10. severe vitamin D deficiency (<12 ng/mL, 30 nmol/L);
11. low corrected or ionised calcium;

12. HIV positive; HBV surface/core Ab or HCV Ab positive; drug/alcohol abuse within 1 year.

    Hepatically impaired only:

13. Unstable medical/psychological conditions or uncontrolled systemic disease;
14. eGFR <50 mL/min/1.73 m² (CKD EPI 2021);
15. Abnormal resting vital signs i) SBP >160 or <100 mmHg, ii) DBP >110 or <65 mmHg, iii) pulse ≥100 or ≤50 bpm;
16. platelets <35×10⁹/L; neutrophils <1.2×10⁹/L; haemoglobin <85 g/L; HbA1c ≥10%;
17. oesophageal banding within 3 months or GI bleeding within 6 months;
18. ascites requiring paracentesis and albumin ≤4 week intervals; paracentesis within 30 days;
19. fluctuating/worsening hepatic function during screening; hepatocellular carcinoma;
20. acute liver disease due to infection/drug; hepatic impairment due to non liver disease;
21. biliary obstruction or non parenchymal causes; hepatic encephalopathy Grade ≥2;
22. functioning organ transplant or anticipated within 2 months; prior porto systemic shunt/TIPS;
23. QTcF >480 ms or clinically significant ECG abnormalities;
24. pancreatitis or pancreatic enzymes >2×ULN;
25. triglycerides >500 mg/dL (5.6 mmol/L); calcitonin >50 ng/L (50 pg/mL); severe vitamin D deficiency (<12 ng/mL, 30 nmol/L); ionised calcium <LLN;
26. neoplastic disease within 10 years (except adequately treated BCC/SCC or in situ cervical); MEN2 or medullary thyroid carcinoma (personal or first degree relative); significant gastric emptying abnormality;
27. HIV positive; HBV surface/core Ab or HCV Ab positive (may be included if HBV DNA or HCV RNA negative on follow up); drug/alcohol abuse within 1 year.

28. Exposure to a new chemical entity within 30 days or 5 half lives (whichever longer) before intervention; prior exposure to AZD9550 or AZD6234;

    Prior/concomitant therapy:

    Healthy controls:

29. use of prescription/non prescription/supplements within 7 days (or 14 days for enzyme inducers) or 5 half lives before intervention unless judged non interfering; current oral contraceptives or oestrogen HRT.

    Hepatically impaired:

30. prohibited-weight loss medicines (including GLP 1), agents causing significant weight gain (e.g., systemic glucocorticoids, antipsychotics), GLP 1 RAs for diabetes, QT prolonging/prokinetic agents, oral contraceptives for contraception; restricted-short systemic glucocorticoids (≤7 days), 5HT 3 antiemetics at lowest effective dose, combined oral contraceptives for non contraceptive indications. If diabetes develops and requires insulin/SU/GLP 1 RA, discontinue from study.

    Other:

31. prior enrolment in this study (screened without dosing permitted). Positive drugs of abuse and/or alcohol screen (except prescribed meds in hepatic impairment); recent blood products/donation per protocol thresholds; employees or close relatives; vulnerable populations; unlikely to comply (investigator judgement).

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Group 1; Participants with severe hepatic impairment (CP Class C, score of 10 to 15).	Drug: AZD6234; Single subcutaneous dose of AZD6234 in participants from all groups; Drug: AZD9550; Single subcutaneous dose of AZD9550 in participants from all groups
Experimental: Group 2; Participants with moderate hepatic impairment (CP Class B, score of 7 to 9).	Drug: AZD6234; Single subcutaneous dose of AZD6234 in participants from all groups; Drug: AZD9550; Single subcutaneous dose of AZD9550 in participants from all groups
Experimental: Group 3; Participants with normal hepatic function matched on a group level regarding sex, age, and BMI to the participants with hepatic impairment.	Drug: AZD6234; Single subcutaneous dose of AZD6234 in participants from all groups; Drug: AZD9550; Single subcutaneous dose of AZD9550 in participants from all groups

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
PK parameters AUCinf	To compare the plasma PK of separate single SC doses of AZD9550 and AZD6234 in participants with severe and moderate hepatic impairment with matched controls with normal hepatic function	Day 0 through Day 56
PK parameters AUClast	To compare the plasma PK of separate single SC doses of AZD9550 and AZD6234 in participants with severe and moderate hepatic impairment with matched controls with normal hepatic function	Day 0 through Day 56
PK parameters Cmax	To compare the plasma PK of separate single SC doses of AZD9550 and AZD6234 in participants with severe and moderate hepatic impairment with matched controls with normal hepatic function	Day 0 through Day 56

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
PK parameters tmax	To evaluate the plasma PK of separate single SC doses of AZD9550 and AZD6234 in participants with severe and moderate hepatic impairment and matched controls with normal hepatic function	Day 0 through Day 56
Prevalence and incidence of ADAs to AZD9550 and AZD6234	To evaluate the immunogenicity of AZD9550 and AZD6234 following separate single SC doses of AZD9550 and AZD6234	Day 0 through Day 56
PK parameters t1/2λz	To evaluate the plasma PK of separate single SC doses of AZD9550 and AZD6234 in participants with severe and moderate hepatic impairment and matched controls with normal hepatic function	Day 0 through Day 56
PK parameters CL/F	To evaluate the plasma PK of separate single SC doses of AZD9550 and AZD6234 in participants with severe and moderate hepatic impairment and matched controls with normal hepatic function	Day 0 through Day 56
PK parameters Vz/F	To evaluate the plasma PK of separate single SC doses of AZD9550 and AZD6234 in participants with severe and moderate hepatic impairment and matched controls with normal hepatic function	Day 0 through Day 56

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of AEs, SAEs	To assess the safety and tolerability of separate single SC doses of AZD9550 and AZD6234 in participants with severe and moderate hepatic impairment and matched controls with normal hepatic function	Screening through Day 56

Collaborators and Investigators

• Sponsor: AstraZeneca

Study record dates

Study Major Dates

• Study Start (Actual): March 20, 2026
• Primary Completion (Estimated): February 4, 2027
• Study Completion (Estimated): February 4, 2027

Study Registration Dates

• First Submitted: March 11, 2026
• First Submitted That Met QC Criteria: April 16, 2026
• First Posted (Actual): April 23, 2026

Study Record Updates

• Last Update Posted (Actual): June 3, 2026
• Last Update Submitted That Met QC Criteria: June 2, 2026
• Last Verified: June 1, 2026

More Information

Terms related to this study

• Keywords: Severe; Moderate; Matched Healthy Controls
• Additional Relevant MeSH Terms: Neoplasms; Immune System Diseases; Neoplasms by Histologic Type; Lymphatic Diseases; Lymphoproliferative Disorders; Immunoproliferative Disorders; Lymphoma, Non-Hodgkin; Lymphoma; Hemic and Lymphatic Diseases; Lymphoma, Follicular
• Other Study ID Numbers: D8460C00003

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES

IPD Plan Description

Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

• IPD Sharing Time Frame: AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
• IPD Sharing Access Criteria: When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No