The ANZCTR website is back online for trial registration and updates. We apologise for any inconvenience caused while the site was inactive.


With activity expected to increase on the ANZCTR again, there may be extended wait times while we process pending studies, with priority being given to those trials submitted in February. Thank you for your patience.


Reset your password and enable multi-factor authentication (MFA)


For ANZCTR account holders: to help ensure the cyber safety of your account, you’ll need to reset your password and set-up multi-factor authentication (MFA) as per the instructions below.


  1. Go to the Login page, click ‘reset password’ and follow the instructions.
  2. Check your email for the link to set a new password.
  3. Create a new password that meets requirements.
  4. Return to the Login page and enter your new password. A verification code will be sent to your email.
  5. Check your email for the code and enter it on the Login page. If the code is entered incorrectly, you can re-enter the correct one or request a new one.

Learn more about MFA and its importance on the Australian Signals Directorate website.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT06862791




Registration number
NCT06862791
Ethics application status
Date submitted
14/02/2025
Date registered
6/03/2025

Titles & IDs
Public title
A Weight Loss Study Evaluating Subcutaneous Treatment With AZD9550 and AZD6234 in Combination Against Placebo or Each of the Drugs Alone
Scientific title
A Phase IIb Randomised, Double-blind, Placebo-controlled Study to Evaluate the Efficacy, Safety and Tolerability of Co-administration of AZD9550 and AZD6234 in Participants Living With Obesity or Overweight With Co-morbidity (ASCEND)
Secondary ID [1] 0 0
2024-516176-15-00
Secondary ID [2] 0 0
D8460C00004
Universal Trial Number (UTN)
Trial acronym
ASCEND
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Obesity or Overweight 0 0
Condition category
Condition code
Diet and Nutrition 0 0 0 0
Obesity
Metabolic and Endocrine 0 0 0 0
Other metabolic disorders

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - AZD9550
Treatment: Drugs - AZD6234
Treatment: Drugs - Placebo comparator

Experimental: Arm 1 - AZD9550 low dose + AZD6234 low dose or placebos

Experimental: Arm 2 - AZD9550 medium dose + AZD6234 medium dose or placebos

Experimental: Arm 3 - AZD9550 high dose + AZD6234 high dose or placebos

Experimental: Arm 4 - AZD9550 low dose + AZD6234 medium dose or placebos

Experimental: Arm 5 - AZD9550 medium dose + AZD6234 low dose or placebos

Experimental: Arm 6 - AZD9550 high dose + AZD6234 medium dose or placebos

Experimental: Arm 7 - AZD9550 medium dose + AZD6234 high dose or placebos

Experimental: Arm 8 - AZD9550 high dose or placebo

Experimental: Arm 9 - AZD6234 high dose or placebo


Treatment: Drugs: AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP

Treatment: Drugs: AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.

Treatment: Drugs: Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Percent change in body weight from baseline after 36 weeks of treatment
Timepoint [1] 0 0
36 weeks
Primary outcome [2] 0 0
Weight loss = 5% from baseline after 36 weeks of treatment
Timepoint [2] 0 0
36 weeks
Secondary outcome [1] 0 0
Absolute change in body weight from baseline after 36 weeks of treatment
Timepoint [1] 0 0
36 weeks
Secondary outcome [2] 0 0
Absolute change in body weight from baseline after 36 weeks of treatment
Timepoint [2] 0 0
36 weeks
Secondary outcome [3] 0 0
Weight loss = 5% from baseline after 36 weeks of treatment
Timepoint [3] 0 0
36 weeks
Secondary outcome [4] 0 0
Weight loss = 10% and = 15% from baseline after 36 weeks of treatment
Timepoint [4] 0 0
36 weeks
Secondary outcome [5] 0 0
Prevalence of ADAs to AZD9550 and AZD6234 in combination and as monotherapies after 36 weeks of treatment
Timepoint [5] 0 0
36 weeks
Secondary outcome [6] 0 0
Incidence of ADAs to AZD9550 and AZD6234 in combination and as monotherapies after 36 weeks of treatment
Timepoint [6] 0 0
36 weeks
Secondary outcome [7] 0 0
Titres of ADAs to AZD9550 and AZD6234 in combination and as monotherapies after 36 weeks of treatment
Timepoint [7] 0 0
36 weeks
Secondary outcome [8] 0 0
Percent change in body weight from baseline after 36 weeks of treatment
Timepoint [8] 0 0
36 weeks

Eligibility
Key inclusion criteria
* Participant must be 18 to 75 years of age inclusive.
* BMI: = 30 kg/m2, or = 27 kg/m2 with at least one weight related comorbidity.
* A stable, self-reported body weight for 3 months prior to screening.
* Male and female participants: Contraceptive use by males or females should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
* Female participants must have a negative serum pregnancy test at screening and a negative urine pregnancy test at baseline.
* Capable of giving signed informed consent.
Minimum age
18 Years
Maximum age
75 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* History of any clinically important disease or disorder, which, in the opinion of the Investigator, may put the participant at risk.
* History or presence of GI, renal, hepatic disease.
* Previous or planned bariatric surgery or fitting of a weight loss device.
* Obesity induced by endocrine disorders such as Cushing's syndrome, insulinoma or Prader-Willi syndrome.
* History of T1DM or T2DM or symptoms indicative of insulinopenia or poor glucose control.
* HbA1c = 6.5% (48 mmol/mol), fasting serum glucose = 126 mg/dL (7.0 mmol/L) or random glucose = 200 mg/dL (11.1 mmol/L).
* Significant gastric and hepatobiliary disease.
* History of acute or chronic pancreatitis or pancreatic amylase or lipase > 2 × ULN at screening.
* History of psychosis or bipolar disorder.
* History of major depressive disorder within the 2 years prior to screening or depression.
* Treatment with a GLP1 containing preparation, either as part of treatment or while participating in another clinical study within the 3 months or 5 half-lives of the drug prior to screening.
* Vulnerable populations

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 2
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
Research Site - Maroochydore
Recruitment hospital [2] 0 0
Research Site - Maroubra
Recruitment hospital [3] 0 0
Research Site - Norwood
Recruitment hospital [4] 0 0
Research Site - St Albans
Recruitment hospital [5] 0 0
Research Site - St Leonards
Recruitment postcode(s) [1] 0 0
4556 - Maroochydore
Recruitment postcode(s) [2] 0 0
2035 - Maroubra
Recruitment postcode(s) [3] 0 0
5067 - Norwood
Recruitment postcode(s) [4] 0 0
3021 - St Albans
Recruitment postcode(s) [5] 0 0
2065 - St Leonards
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Alabama
Country [2] 0 0
United States of America
State/province [2] 0 0
California
Country [3] 0 0
United States of America
State/province [3] 0 0
Colorado
Country [4] 0 0
United States of America
State/province [4] 0 0
Connecticut
Country [5] 0 0
United States of America
State/province [5] 0 0
Florida
Country [6] 0 0
United States of America
State/province [6] 0 0
Georgia
Country [7] 0 0
United States of America
State/province [7] 0 0
Idaho
Country [8] 0 0
United States of America
State/province [8] 0 0
Illinois
Country [9] 0 0
United States of America
State/province [9] 0 0
Indiana
Country [10] 0 0
United States of America
State/province [10] 0 0
Iowa
Country [11] 0 0
United States of America
State/province [11] 0 0
Kansas
Country [12] 0 0
United States of America
State/province [12] 0 0
Maryland
Country [13] 0 0
United States of America
State/province [13] 0 0
Michigan
Country [14] 0 0
United States of America
State/province [14] 0 0
Missouri
Country [15] 0 0
United States of America
State/province [15] 0 0
Montana
Country [16] 0 0
United States of America
State/province [16] 0 0
Nebraska
Country [17] 0 0
United States of America
State/province [17] 0 0
New Mexico
Country [18] 0 0
United States of America
State/province [18] 0 0
New York
Country [19] 0 0
United States of America
State/province [19] 0 0
North Dakota
Country [20] 0 0
United States of America
State/province [20] 0 0
Ohio
Country [21] 0 0
United States of America
State/province [21] 0 0
Oklahoma
Country [22] 0 0
United States of America
State/province [22] 0 0
Oregon
Country [23] 0 0
United States of America
State/province [23] 0 0
Tennessee
Country [24] 0 0
United States of America
State/province [24] 0 0
Texas
Country [25] 0 0
United States of America
State/province [25] 0 0
Virginia
Country [26] 0 0
United States of America
State/province [26] 0 0
Washington
Country [27] 0 0
Canada
State/province [27] 0 0
Alberta
Country [28] 0 0
Canada
State/province [28] 0 0
British Columbia
Country [29] 0 0
Canada
State/province [29] 0 0
Ontario
Country [30] 0 0
Canada
State/province [30] 0 0
Quebec
Country [31] 0 0
Germany
State/province [31] 0 0
Berlin
Country [32] 0 0
Germany
State/province [32] 0 0
Essen
Country [33] 0 0
Germany
State/province [33] 0 0
Falkensee
Country [34] 0 0
Germany
State/province [34] 0 0
Hamburg
Country [35] 0 0
Germany
State/province [35] 0 0
Mannheim
Country [36] 0 0
Germany
State/province [36] 0 0
Muenster
Country [37] 0 0
Germany
State/province [37] 0 0
Oldenburg
Country [38] 0 0
Japan
State/province [38] 0 0
Chuo-ku
Country [39] 0 0
Japan
State/province [39] 0 0
Fukuoka-shi
Country [40] 0 0
Japan
State/province [40] 0 0
Shinjuku-ku
Country [41] 0 0
Japan
State/province [41] 0 0
Suita-shi
Country [42] 0 0
Taiwan
State/province [42] 0 0
Kaohsiung

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
AstraZeneca
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
AstraZeneca Clinical Study Information Center
Address 0 0
Country 0 0
Phone 0 0
1-877-240-9479
Fax 0 0
Email 0 0
Contact person for scientific queries

Data sharing statement


What supporting documents are/will be available?

No Supporting Document Provided



Results publications and other study-related documents

No documents have been uploaded by study researchers.