beta
Trial Radar AI
Clinical Trial NCT06862791 (ASCEND) for Obesity or Overweight is active, not recruiting. See the Trial Radar Card View and AI discovery tools for all the details. Or ask anything here.
One study matched filter criteria
Card View

A Weight Loss Study Evaluating Subcutaneous Treatment With AZD9550 and AZD6234 in Combination Against Placebo or Each of the Drugs Alone (ASCEND) Phase 2 377

Active, not recruiting
Clinical Trial NCT06862791 (ASCEND) is designed to study Treatment for Obesity or Overweight. It is a Phase 2 interventional study that is active, not recruiting, having started on 18 February 2025, with plans to enroll 377 participants. Led by AstraZeneca, it is expected to complete by 25 May 2026. The latest data from ClinicalTrials.gov was last updated on 2 February 2026.
Brief Summary
The purpose of this study is to determine whether treatment with AZD9550 when given in combination with AZD6234 as once weekly subcutaneous (SC) injections is superior to placebo or either agent administered as monotherapy for weight loss in participants living with obesity or overweight with at least one weight-related co-morbidity.
Detailed Description
This is a Phase IIb, global, randomised, parallel-group, double-blind, placebo-controlled, multi-centre, reduced factorial study designed to evaluate the efficacy, safety and tolerability of treatment with AZD9550 and AZD6234 in combination or as monotherapy in adults who are living with obesity or overweight with at least one of the following weight-related co-morbidities: hypertension, dyslipidemia or obstructive s...Show More
Official 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)

Conditions
Obesity or Overweight
Other Study IDs
  • ASCEND
  • D8460C00004
  • 2024-516176-15-00 (Registry Identifier) (EU CT number)
NCT ID Number
Start Date (Actual)
2025-02-18
Last Update Posted
2026-02-02
Completion Date (Estimated)
2026-05-25
Enrollment (Estimated)
377
Study Type
Interventional
PHASE
Phase 2
Status
Active, not recruiting
Keywords
Obesity
Overweight
AZD9550
AZD6234
Primary Purpose
Treatment
Design Allocation
Randomized
Interventional Model
Parallel
Masking
Quadruple
Arms / Interventions
Participant Group/ArmIntervention/Treatment
ExperimentalArm 1
AZD9550 low dose + AZD6234 low dose or placebos
AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP
AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
ExperimentalArm 2
AZD9550 medium dose + AZD6234 medium dose or placebos
AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP
AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
ExperimentalArm 3
AZD9550 high dose + AZD6234 high dose or placebos
AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP
AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
ExperimentalArm 4
AZD9550 low dose + AZD6234 medium dose or placebos
AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP
AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
ExperimentalArm 5
AZD9550 medium dose + AZD6234 low dose or placebos
AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP
AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
ExperimentalArm 6
AZD9550 high dose + AZD6234 medium dose or placebos
AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP
AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
ExperimentalArm 7
AZD9550 medium dose + AZD6234 high dose or placebos
AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP
AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
ExperimentalArm 8
AZD9550 high dose or placebo
AZD9550
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
ExperimentalArm 9
AZD6234 high dose or placebo
AZD6234
IMP injected subcutaneous, once weekly. Unit dose strength as per CSP.
Placebo comparator
Placebo matching IMP dose injected subcutaneously, once weekly.
Primary Outcome Measures
Outcome MeasureMeasure DescriptionTime Frame
Percent change in body weight from baseline after 36 weeks of treatment
To determine whether treatment with AZD9550 and AZD6234 in combination is superior to placebo for weight loss
36 weeks
Weight loss ≥ 5% from baseline after 36 weeks of treatment
To assess the effect of treatment with AZD9550 and AZD6234 in combination vs placebo on the proportion of participants with weight loss ≥ 5%
36 weeks
Secondary Outcome Measures
Outcome MeasureMeasure DescriptionTime Frame
Absolute change in body weight from baseline after 36 weeks of treatment
To determine whether treatment with AZD9550 and AZD6234 in combination is superior to placebo for weight loss
36 weeks
Absolute change in body weight from baseline after 36 weeks of treatment
To determine whether treatment with AZD9550 and AZD6234 in combination is superior to AZD9550 and AZD6234 monotherapy, and whether AZD9550 and AZD6234 as monotherapies are superior to placebo for weight loss
36 weeks
Weight loss ≥ 5% from baseline after 36 weeks of treatment
To assess the effect of treatment with AZD9550 and AZD6234 in combination vs monotherapy, and assess the effect of AZD9550 and AZD6234 as monotherapies vs placebo, on the proportion of participants with weight loss ≥ 5%
36 weeks
Weight loss ≥ 10% and ≥ 15% from baseline after 36 weeks of treatment
To assess the effect of treatment with AZD9550 and AZD6234 in combination vs placebo and monotherapy, and assess the effect of AZD9550 and AZD6234 as monotherapies vs placebo, on the proportion of participants with weight loss ≥ 10% and ≥ 15%
36 weeks
Prevalence of ADAs to AZD9550 and AZD6234 in combination and as monotherapies after 36 weeks of treatment
To assess the immunogenicity profile of treatment with AZD9550 and AZD6234 in combination and as monotherapies
36 weeks
Incidence of ADAs to AZD9550 and AZD6234 in combination and as monotherapies after 36 weeks of treatment
To assess immunogenicity profile of ADAs to AZD9550 and AZD6234 in combination and as monotherapies
36 weeks
Titres of ADAs to AZD9550 and AZD6234 in combination and as monotherapies after 36 weeks of treatment
To assess the immunogenicity profile of treatment with AZD9550 and AZD6234 in combination and as monotherapies
36 weeks
Percent change in body weight from baseline after 36 weeks of treatment
To determine whether treatment with AZD9550 and AZD6234 in combination is superior to AZD9550 and AZD6234 monotherapy, and whether AZD9550 and AZD6234 as monotherapies are superior to placebo for weight loss
36 weeks
Participation Assistant
Eligibility Criteria

Eligible Ages
Adult, Older Adult
Minimum Age
18 Years
Eligible Sexes
All
  • 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.

  • 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
No contact data.
53 Study Locations in 5 Countries
Research Site, Maroochydore, 4556, Australia
Research Site, Maroubra, 2035, Australia
Research Site, Norwood, 5067, Australia
Research Site, St Albans, 3021, Australia
Research Site, St Leonards, 2065, Australia

Alabama

Research Site, Dothan, Alabama, 36305, United States
Research Site, Vestavia Hills, Alabama, 35216, United States

California

Research Site, Cerritos, California, 90703, United States
Research Site, Escondido, California, 92025, United States
Research Site, Huntington Park, California, 90255, United States
Research Site, Lincoln, California, 95648, United States
Research Site, Sacramento, California, 95864, United States

Connecticut

Research Site, Waterbury, Connecticut, 06708, United States

Florida

Research Site, Palm Harbor, Florida, 34684, United States

Georgia

Research Site, Decatur, Georgia, 30030, United States
Research Site, Stockbridge, Georgia, 30281, United States

Illinois

Research Site, Champaign, Illinois, 61822, United States

Indiana

Research Site, South Bend, Indiana, 46617, United States
Research Site, Valparaiso, Indiana, 46383, United States

Iowa

Research Site, Sioux City, Iowa, 51106, United States

Michigan

Research Site, Southfield, Michigan, 48034, United States

Montana

Research Site, Missoula, Montana, 59804, United States

Nebraska

Research Site, Omaha, Nebraska, 68114, United States

New Mexico

Research Site, Albuquerque, New Mexico, 87107, United States

North Dakota

Research Site, Fargo, North Dakota, 58104, United States

Ohio

Research Site, Cincinnati, Ohio, 45219, United States
Research Site, Columbus, Ohio, 43213, United States

Oklahoma

Research Site, Tulsa, Oklahoma, 74133, United States

Oregon

Research Site, Medford, Oregon, 97504, United States

Tennessee

Research Site, Kingsport, Tennessee, 37660, United States

Texas

Research Site, Brownsville, Texas, 78526, United States
Research Site, Houston, Texas, 77043, United States

Virginia

Research Site, Arlington, Virginia, 22206, United States

Washington

Research Site, Renton, Washington, 98057, United States

Alberta

Research Site, Calgary, Alberta, T2V 4J2, Canada

British Columbia

Research Site, Surrey, British Columbia, V3T 2V6, Canada

Ontario

Research Site, Guelph, Ontario, N1G 0B4, Canada
Research Site, Hamilton, Ontario, L8J 0B6, Canada
Research Site, Hamilton, Ontario, L8L 5G8, Canada
Research Site, Sarnia, Ontario, N7T 4X3, Canada
Research Site, Stouffville, Ontario, L4A1H2, Canada

Quebec

Research Site, Montreal, Quebec, H4N 2W2, Canada
Research Site, Berlin, 10787, Germany
Research Site, Essen, 45136, Germany
Research Site, Falkensee, 14612, Germany
Research Site, Hamburg, 22607, Germany
Research Site, Münster, 48145, Germany
Research Site, Oldenburg, 23758, Germany
Research Site, Chūōku, 103-0027, Japan
Research Site, Chūōku, 104-0031, Japan
Research Site, Fukuoka, 812-0025, Japan
Research Site, Shinjuku-ku, 160-0008, Japan
Research Site, Suita-shi, 565-0853, Japan