Obesity or OverweightPhase 3SELENE 3NCT07776509
A Study to Evaluate Effect of AZD6234 as an Adjunct to Incretin-based Therapies in Adult Participants With Obesity or Overweight With Weight-related Comorbidity With or Without Type 2 Diabetes Mellitus
A Phase 3 study testing Lenbelintide in people with Obesity or Overweight and Weight-Related Comorbidity, run by AstraZeneca at 96 sites in 11 countries.
Trial summary
The study will evaluate how well AZD6234 works and how safe it is in adults with excess weight or obesity. Efficacy of AZD6234 will be compared to placebo in percent body weight change from baseline at 68 weeks of treatment. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Obesity or Overweight, Weight-Related Comorbidity, With/Without Diabetes Mellitus, Type 2
- What is being tested?
- Lenbelintide
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 500 participants
- Where
- 96 sitesin 11 countries
- Study dates
- 24 Aug 2026to 9 Aug 2028
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Males \& females (inclusive of all gender identities) age ≥18 years
- BMI ≥ 30 kg/m2 OR BMI ≥ 27 kg/m2 with at least one of the following weight-related comorbidities (treated or untreated): hypertension, dyslipidaemia, obstructive sleep apnoea, cardiovascular disease, heart failure, chronic kidney disease, metabolic dysfunction associated steatotic liver disease, osteoarthritis of the knee, or stress urinary incontinence
- For participants with T2DM only:
- Diagnosed with T2DM ≥ 90 days prior to Screening
- HbA1c value at Screening of ≥6.0% (42 mmol/mol) and ≤9.0% (75 mmol/mol) managed with diet and exercise alone or with a stable dose of any oral glycaemic-lowering agent and/or incretin-based medication
- Receiving a stable dose of incretin- based medications at a dose level that is sufficient for chronic weight management for at least 3 months prior to Screening and Randomisation.
- Stable body weight (≤ 3% body weight change) for at least 3 months prior to Randomisation
- History of at least one self-reported unsuccessful attempt to lose body weight in their lifetime
Who cannot join
- Obesity primarily caused by other endocrine disorders
- Type 1 diabetes mellitus
- Significant hepatobiliary disease and/or any of the following results at Screening:
- ALT ≥ 3.0 × ULN
- AST ≥ 3.0 × ULN
- TBL > 1.5 × ULN (except for cases of known Gilbert's Syndrome)
- Use of insulin therapy for T2DM within 3 months prior to screening
Trial locations and contacts
96 sites in 11 countries. Contact the study team or a site near you to ask about taking part.
AstraZeneca Clinical Study Information Center contact
96 sites in 11 countries
United States23 sites, 21 recruiting
- Not yet recruiting
Research Site
Beltsville, Maryland, 20705
- Not yet recruiting
Research Site
Champaign, Illinois, 61822
- Not yet recruiting
Research Site
Chicago, Illinois, 60640
- Not yet recruiting
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Columbus, Ohio, 43215
- Not yet recruiting
Research Site
Escondido, California, 92025
- Recruiting
Research Site
Fargo, North Dakota, 58104
- Withdrawn
Research Site
Franklin, Tennessee, 37067
- Recruiting
Research Site
Houston, Texas, 77043
- Not yet recruiting
Research Site
Jacksonville, Florida, 32204
- Not yet recruiting
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Jacksonville, Florida, 32205
- Not yet recruiting
Research Site
Kansas City, Missouri, 64111
- Not yet recruiting
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Las Vegas, Nevada, 89101
- Recruiting
Research Site
Lincoln, California, 95648
- Not yet recruiting
Research Site
Manassas, Virginia, 20110
- Not yet recruiting
Research Site
Oxon Hill, Maryland, 20745
- Not yet recruiting
Research Site
Portland, Oregon, 97202
- Withdrawn
Research Site
Renton, Washington, 98057
- Not yet recruiting
Research Site
Smithfield, Pennsylvania, 15478
- Not yet recruiting
Research Site
Somerset, New Jersey, 08873
- Recruiting
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Statesville, North Carolina, 28625
- Not yet recruiting
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Stockbridge, Georgia, 30281
- Not yet recruiting
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Walnut Creek, California, 94598
- Recruiting
Research Site
Woodstock, Georgia, 30189
Japan12 sites, 12 recruiting
- Not yet recruiting
Research Site
Chūōku, 103-0002
- Not yet recruiting
Research Site
Ichinomiya-shi, 491-8558
- Not yet recruiting
Research Site
Izunokuni-shi, 410-2295
- Not yet recruiting
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Kamakura-shi, 247-0056
- Not yet recruiting
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Kawagoe-shi, 350-0851
- Not yet recruiting
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Kitakyushu-shi, 802-0077
- Not yet recruiting
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Kyoto, 607-8062
- Not yet recruiting
Research Site
Kyoto, 612-8555
- Not yet recruiting
Research Site
Mito, 311-4153
- Not yet recruiting
Research Site
Nishinomiya-shi, 662-0971
- Not yet recruiting
Research Site
Ōmihachiman, 523-0082
- Not yet recruiting
Research Site
Yokohama, 230-8765
Canada10 sites, 9 recruiting
- Not yet recruiting
Research Site
Calgary, Alberta, T2V 4J2
- Recruiting
Research Site
Calgary, Alberta, T3R 1W9
- Recruiting
Research Site
Guelph, Ontario, N1H 1B1
- Recruiting
Research Site
Hamilton, Ontario, L8L 5G8
- Recruiting
Research Site
Joliette, Quebec, J6E 6A9
- Recruiting
Research Site
Montreal, Quebec, H4J 1E3
- Recruiting
Research Site
Stouffville, Ontario, L4A1H2
- Recruiting
Research Site
Surrey, British Columbia, V3T 4G8
- Withdrawn
Research Site
Toronto, Ontario, M4G3E8
- Recruiting
Research Site
Vancouver, British Columbia, V5Y 3W2
China9 sites, 9 recruiting
- Not yet recruiting
Research Site
Beijing, 100034
- Not yet recruiting
Research Site
Changchun, 130041
- Not yet recruiting
Research Site
Chengdu, 610072
- Not yet recruiting
Research Site
Chengdu, 611130
- Not yet recruiting
Research Site
Guangzhou, 510280
- Not yet recruiting
Research Site
Huzhou, 313003
- Not yet recruiting
Research Site
Nanjing, 210008
- Not yet recruiting
Research Site
Nanjing, 210009
- Not yet recruiting
Research Site
Ningbo, 315000
Denmark9 sites, 8 recruiting
- Not yet recruiting
Research Site
Aarhus N, 8200
- Not yet recruiting
Research Site
Gandrup, 9362
- Not yet recruiting
Research Site
Herlev, 2730
- Suspended
Research Site
Herlev, 2730
- Not yet recruiting
Research Site
Holbæk, 4300
- Not yet recruiting
Research Site
Hvidovre, 2650
- Not yet recruiting
Research Site
Middelfart, 5500
- Not yet recruiting
Research Site
Odense, 5000
- Not yet recruiting
Research Site
Vejle, 7100
Argentina6 sites, 6 recruiting
- Not yet recruiting
Research Site
Buenos Aires, C1120AAC
- Not yet recruiting
Research Site
CABA, C1425HFA
- Recruiting
Research Site
Ciudad de Buenos Aires, C1094AAD
- Not yet recruiting
Research Site
Ramos Mejía, B1704ETD
- Not yet recruiting
Research Site
Rosario, S2000PBJ
- Not yet recruiting
Research Site
San Nicolás, B2900DMH
Brazil6 sites, 6 recruiting
- Not yet recruiting
Research Site
Belo Horizonte, 30150-320
- Not yet recruiting
Research Site
Campinas, 13060-080
- Not yet recruiting
Research Site
Campinas, 13060-803
- Not yet recruiting
Research Site
São Paulo, 01236-030
- Not yet recruiting
Research Site
São Paulo, 04039-002
- Not yet recruiting
Research Site
São Paulo, 04266-010
Israel6 sites, 6 recruiting
- Not yet recruiting
Research Site
Holon, 5822012
- Recruiting
Research Site
Jerusalem, 91120
- Recruiting
Research Site
Kfar Saba, 4428164
- Recruiting
Research Site
Petah Tikva, 49100
- Recruiting
Research Site
Petah Tikva, 4937211
- Not yet recruiting
Research Site
Tel Aviv, 64239
Sweden5 sites, 4 recruiting
- Suspended
Research Site
Linköping, 58213
- Not yet recruiting
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Lund, 222 22
- Not yet recruiting
Research Site
Mölndal, 43153
- Not yet recruiting
Research Site
Örebro, 703 62
- Not yet recruiting
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Stockholm, 113 61
Turkey (Türkiye)5 sites, 5 recruiting
- Not yet recruiting
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Ankara, 06100
- Not yet recruiting
Research Site
Ankara, 06800
- Not yet recruiting
Research Site
Antalya, 07059
- Not yet recruiting
Research Site
Center, 23200
- Not yet recruiting
Research Site
Istanbul, 34384
United Kingdom5 sites, 5 recruiting
- Recruiting
Research Site
Airdrie, ML6 0JS
- Not yet recruiting
Research Site
Chippenham, SN14 6GT
- Recruiting
Research Site
Hull, HU3 2PA
- Recruiting
Research Site
Llandough, CF64 2XX
- Not yet recruiting
Research Site
Rotherham, S65 1DA
About this study
Official title: A Phase III Randomised, Double-Blind, Placebo-Controlled Multicentre Trial to Evaluate the Efficacy and Safety of AZD6234 as an Adjunct to Incretin-based Therapies in Participants With Obesity or Overweight With at Least One Weight-Related Comorbidity With or Without Type 2 Diabetes Mellitus (SELENE 3)
The study will evaluate how well AZD6234 works and how safe it is in adults with excess weight or obesity. Efficacy of AZD6234 will be compared to placebo in percent body weight change from baseline at 68 weeks of treatment.
Read the detailed description
This is a Phase III, global, randomised, parallel-group, double-blind, multicentre study to assess the efficacy and safety of AZD6234 as an adjunct to incretin-based therapies, compared with placebo in adults with obesity or overweight with at least one weight-related comorbidity and with or without Type 2 Diabetes Mellitus (T2DM). Eligible participants will be randomised to either receive AZD6234 or matching placebo respectively. Study treatment (AZD6234 or placebo) will be added on to the participant's stable dose of background incretin-based therapies.
- Being tested
- Lenbelintide, Placebo
- Keywords
- Obesity, Overweight, AZD6234, Lenbelintide, Diabetes Mellitus, Type 2
- Medical subject headings
- Obesity, Overweight, Diabetes Mellitus, Type 2
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
LenbelintideDrug
Also called AZD6234
IMP injected subcutaneously, once a week.
PlaceboDrug
Placebo matching IMP dose injected subcutaneously, once a week.
| Study group | Role | What they receive |
|---|---|---|
| AZD6234 | Experimental | AZD6234 Receives: Drug: Lenbelintide |
| Placebo | Placebo comparator | Matching placebo Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percent change in body weight from baseline at 68 weeks of treatment
To evaluate the effect of AZD6234 as compared to placebo as an adjunct to incretin-based therapies in percent body weight change
Measured: 68 weeks
Secondary outcomes (8)
Percent change in body weight from baseline at 68 weeks of treatment
To evaluate the effect of AZD6234 as compared to placebo as an adjunct to incretin-based therapies in percent body weight change in the T2DM and non-T2DM sub-populations separately
Measured: 68 weeks
Absolute change in weight (kg) from baseline at 68 weeks of treatment
To evaluate the effect of AZD6234 as compared to placebo as an adjunct to incretin-based therapies on the absolute change in weight in the full population and in the T2DM and non-T2DM sub-populations separately
Measured: 68 weeks
Achievement of at least 5% body weight loss from baseline at 68 weeks of treatment
To evaluate the effect of AZD6234 as compared to placebo as an adjunct to incretin-based therapies in body weight loss of at least 5% in the full population and in the T2DM and non T2DM sub-populations separately
Measured: 68 weeks
Achievement of at least 10% body weight loss from baseline at 68 weeks of treatment
To evaluate the effect of AZD6234 as compared to placebo as an adjunct to incretin-based therapies in body weight loss of at least 10% in the full population and in the T2DM and non T2DM sub-populations separately
Measured: 68 weeks
Change in waist circumference (cm) from baseline at 68 weeks of treatment
To evaluate whether AZD6234 as an adjunct to incretin-based therapies on the waist circumference in the full population and in the T2DM and non-T2DM sub-populations separately
Measured: 68 weeks
Percent change in triglycerides from baseline at 68 weeks of treatment
To evaluate the effect of AZD6234 as compared to placebo as an adjunct to incretin-based therapies on triglycerides percent change
Measured: 68 weeks
Change in systolic blood pressure (mmHg) from baseline at 68 weeks of treatment
To evaluate the effect of AZD6234 as compared to placebo as an adjunct to incretin-based therapies on the systolic blood pressure change
Measured: 68 weeks
Change in HbA1c from baseline at 68 weeks of treatment
For participants with T2DM only: to evaluate the effect of AZD6234 as an adjunct to incretin-based therapies on HbA1c change in the T2DM sub population only
Measured: 68 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Aug 2026
- Study start24 Aug 2026
- Primary completion9 Aug 2028 (estimated)
- Study completion9 Aug 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Obesity or OverweightStudies of the same condition, open and under way.
- More trials run by AstraZenecaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- International, multi-centre, randomised, double-blind, placebo-controlled, parallel-group
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 500 participants (estimated)
Sponsor and investigators
- Lead sponsor
- AstraZeneca
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07776509
- Sponsor's protocol ID
- D8750C00011
- Other IDs
- 2025-523295-23-00, 159494, 2025
- Acronym
- SELENE 3
- Status last verified
- Sep 2026
- First submitted
- 10 Aug 2026
- Last updated
- 25 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: 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.
Study at a glance
From the registry record, last updated by the sponsor on 25 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase III Randomised, Double-Blind, Placebo-Controlled Multicentre Trial to Evaluate the Efficacy and Safety of AZD6234 as an Adjunct to Incretin-based Therapies in Participants With Obesity or Overweight With at Least One Weight-Related Comorbidity With or Without Type 2 Diabetes Mellitus (SELENE 3)
- ClinicalTrials.gov ID
- NCT07776509
- Acronym / sponsor ID
- SELENE 3 / D8750C00011
- Keywords
- Obesity, Overweight, AZD6234, Lenbelintide, Diabetes Mellitus, Type 2
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 500 participants (estimated)
- Lead sponsor
- AstraZenecaIndustry (pharma, biotech, devices)
- Study start
- 24 Aug 2026 (actual)
- Primary completion
- 9 Aug 2028 (estimated)
- Study completion
- 9 Aug 2028 (estimated)
- First posted
- 20 Aug 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The study will evaluate how well AZD6234 works and how safe it is in adults with excess weight or obesity. Efficacy of AZD6234 will be compared to placebo in percent body weight change from baseline at 68 weeks of treatment.
Detailed description
This is a Phase III, global, randomised, parallel-group, double-blind, multicentre study to assess the efficacy and safety of AZD6234 as an adjunct to incretin-based therapies, compared with placebo in adults with obesity or overweight with at least one weight-related comorbidity and with or without Type 2 Diabetes Mellitus (T2DM). Eligible participants will be randomised to either receive AZD6234 or matching placebo respectively. Study treatment (AZD6234 or placebo) will be added on to the participant's stable dose of background incretin-based therapies.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
- Model description
- International, multi-centre, randomised, double-blind, placebo-controlled, parallel-group
| Arm | Type | Receives |
|---|---|---|
| AZD6234 | Experimental | Drug: LenbelintideAZD6234 |
| Placebo | Placebo comparator | Drug: PlaceboMatching placebo |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Males \& females (inclusive of all gender identities) age ≥18 years
- BMI ≥ 30 kg/m2 OR BMI ≥ 27 kg/m2 with at least one of the following weight-related comorbidities (treated or untreated): hypertension, dyslipidaemia, obstructive sleep apnoea, cardiovascular disease, heart failure, chronic kidney disease, metabolic dysfunction associated steatotic liver disease, osteoarthritis of the knee, or stress urinary incontinence
- For participants with T2DM only:
- Receiving a stable dose of incretin- based medications at a dose level that is sufficient for chronic weight management for at least 3 months prior to Screening and Randomisation.
- Stable body weight (≤ 3% body weight change) for at least 3 months prior to Randomisation
Key exclusion criteria (7 listed)
- Obesity primarily caused by other endocrine disorders
- Type 1 diabetes mellitus
- Significant hepatobiliary disease and/or any of the following results at Screening:
- Use of insulin therapy for T2DM within 3 months prior to screening
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| LenbelintideAlso: AZD6234IMP injected subcutaneously, once a week. | Drug | AZD6234 |
| PlaceboPlacebo matching IMP dose injected subcutaneously, once a week. | Drug | Placebo |
Primary outcome
Percent change in body weight from baseline at 68 weeks of treatment
Time frame: 68 weeks
To evaluate the effect of AZD6234 as compared to placebo as an adjunct to incretin-based therapies in percent body weight change
8 secondary outcomes
Percent change in body weight from baseline at 68 weeks of treatment
Time frame: 68 weeks
Absolute change in weight (kg) from baseline at 68 weeks of treatment
Time frame: 68 weeks
Achievement of at least 5% body weight loss from baseline at 68 weeks of treatment
Time frame: 68 weeks
Achievement of at least 10% body weight loss from baseline at 68 weeks of treatment
Time frame: 68 weeks
Change in waist circumference (cm) from baseline at 68 weeks of treatment
Time frame: 68 weeks
Percent change in triglycerides from baseline at 68 weeks of treatment
Time frame: 68 weeks
Change in systolic blood pressure (mmHg) from baseline at 68 weeks of treatment
Time frame: 68 weeks
Change in HbA1c from baseline at 68 weeks of treatment
Time frame: 68 weeks
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Sep 2026.
- Individual participant dataSharing planned: Yes. 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.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
AstraZeneca Clinical Study Information Center contact
96 sites in 11 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Lenbelintide in people with Obesity or Overweight and Weight-Related Comorbidity, run by AstraZeneca at 96 sites in 11 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 25 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 96 sites in United States, Japan, Canada, China, Denmark and 6 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact AstraZeneca Clinical Study Information Center (1-877-240-9479, information.center@astrazeneca.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percent change in body weight from baseline at 68 weeks of treatment (time frame: 68 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Sep 2026; AzTrials last refreshed its copy on 26 Oct 2026.