Study to Evaluate the Effect on Obesity of QW Nimacimab and QW Nimacimab Co-administered With Semaglutide vs Placebo

NCT ID: NCT06577090

Last Updated: 2026-01-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

136 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-08-22

Study Completion Date

2027-02-28

Brief Summary

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This is a proof-of-concept study to assess the safety and efficacy of Nimacimab Injection compared to an active and placebo injection control.

Detailed Description

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The purpose of this study is to measure the change in body weight with once weekly doses of Nimacimab Injection compared with placebo injection and once weekly Nimacimab Injection co-administered with commercially available semaglutide injection (Wegovy®) in participants with obesity or are overweight with weight-related comorbidities. A study extension has been added to include additional 26 weeks of treatment and 13 weeks of follow up for qualifying participants starting May2025.

Conditions

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Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Partially blinded combination arm x 2, blinded monotherapy arm x 2, open-label study extension arm monotherapy x 1.
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Participants assigned to combination arms will be masked to IP/placebo assignment but unmasked to Wegovy assignment. Participants in the monotherapy arms will remain masked to IP/placebo treatment assignment. Participants who enroll in the study extension (monotherapy arms) will be enrolled into an open-label unblinded 300 mg nimacimab treatment arm. Participants who enroll in the study extension (combination arms) will remain blinded to their treatment assignments with the exception of their Wegovy dose as in the main study.

Study Groups

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Nimacimab injection

Nimacimab injection 200 mg

Group Type EXPERIMENTAL

Nimacimab injection

Intervention Type BIOLOGICAL

Nimacimab injection 200 mg

Nimacimab placebo injection

Matching nimacimab placebo injection

Group Type PLACEBO_COMPARATOR

Nimacimab placebo injection

Intervention Type BIOLOGICAL

matching nimacimab placebo injection

Semaglutide injection + Nimacimab injection 200 mg

Semaglutide injection administered according to dose escalation described in semaglutide prescribing information plus concomitant administration of Nimacimab Injection 200 mg

Group Type EXPERIMENTAL

Nimacimab injection

Intervention Type BIOLOGICAL

Nimacimab injection 200 mg

semaglutide injection

Intervention Type COMBINATION_PRODUCT

semaglutide injection 0.25 mg, 0.5 mg, 1 mg, 1.7 mg, 2.4 mg + nimacimab 200 mg

Semaglutide injection + Nimacimab placebo injection

Semaglutide injection administered according to dose escalation described in semaglutide Prescribing Information plus concomitant administration of Nimacimab Injection or matching placebo injection

Group Type ACTIVE_COMPARATOR

Nimacimab placebo injection

Intervention Type BIOLOGICAL

matching nimacimab placebo injection

semaglutide injection

Intervention Type COMBINATION_PRODUCT

semaglutide injection 0.25 mg, 0.5 mg, 1 mg, 1.7 mg, 2.4 mg + nimacimab 200 mg

Open-label 300 mg Nimacimab injection (study extension)

Weekly nimacimab injection 300 mg open-label (study extension)

Group Type EXPERIMENTAL

Nimacimab 300 mg injection

Intervention Type BIOLOGICAL

Nimacimab injection 300 mg

Interventions

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Nimacimab injection

Nimacimab injection 200 mg

Intervention Type BIOLOGICAL

Nimacimab placebo injection

matching nimacimab placebo injection

Intervention Type BIOLOGICAL

semaglutide injection

semaglutide injection 0.25 mg, 0.5 mg, 1 mg, 1.7 mg, 2.4 mg + nimacimab 200 mg

Intervention Type COMBINATION_PRODUCT

Nimacimab 300 mg injection

Nimacimab injection 300 mg

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

1. Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
2. Participants must be at least 18 years of age or the legal age of consent in the jurisdiction in which the study is taking place to 65 years, inclusive, at the time of signing the informed consent.
3. Male, female, and/or nonbinary participants.
4. Have Body Mass Index (BMI) of

1. ≥ 30 kg/m2 to ≤ 45 kg/m2 OR
2. ≥ 27 kg/m2 and \< 30 kg/m2 with clinically confirmed diagnosis of at least 1 of the following weight-related co-morbidities:

i. dyslipidemia: on lipid-lowering medication or having low-density lipoprotein (LDL) ≥ 160 mg/dL (4.1 mmol/L) or triglycerides ≥ 150 mg/dL (1.7 mmol/L) or high-density lipoprotein (HDL) \< 40 mg/dL (1.0 mmol/L) for men or HDL \< 50 mg/dL (1.3 mmol/L) for women at screening.

ii. cardiovascular disease: (for example, ischemic cardiovascular disease, New York Heart Association \[NYHA\] Functional Classification Class I-II heart failure).

iii. obstructive sleep apnea syndrome (Salzano 2021).

iv. controlled arterial hypertension with systolic blood pressure (SBP) \< 150 mmHg or diastolic blood pressure (DBP) \< 90 mmHg.
5. Have an HbA1c \<6.5% at screening.
6. Have had a stable body weight for the 3 months prior to screening (no more than 5% body weight gain and/or loss).
7. If on cardiovascular, anti-hypertensive, must be controlled controlled on a stable dose for 3 months prior to randomization.
8. If on hormone replacement therapy, must be on a stable dose for at least 3 months prior to screening, including use of thyroxine.
9. Females of childbearing potential must agree:

1. to use an approved method of contraception from screening throughout the study and for at least 90 days after the last dose of study drug.
2. to not donate ova from screening throughout the study and for at least 90 days after the last dose of study drug.
3. have a negative pregnancy test at screening and Day 0.
10. Male participants who are (hetero) sexually active must agree that he and his partner will each use an approved method of contraception from screening throughout the study and for at least 90 days after the last dose of study drug.
11. Agreement in male participants to not donate sperm from screening throughout the study and for at least 90 days after the last dose of study drug.

Exclusion Criteria

1. Have any prior diagnosis of type 1 or type 2 diabetes mellitus (T1DM or T2DM, or rare forms of diabetes mellitus).
2. Have at least 1 laboratory value suggestive of diabetes during screening, including 1 or more of 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).
3. Have a prior or planned surgical treatment for obesity (excluding liposuction or abdominoplasty, if performed \> 1 year prior to screening).
4. Have obesity induced by other disorders (for example, Cushing's syndrome) or diagnosed monogenetic or syndromic forms of obesity (for example, Melanocortin 4 Receptor deficiency or Prader-Willi Syndrome) or use of systemic corticosteroids or uncontrolled hypothyroidism. (Hypothyroidism on stable treatment is allowed if thyroid stimulating hormone (TSH) measure within the last 3 months of screening is within normal limits).
5. Have had at any time or plan to have endoscopic and/or device-based therapy for obesity including but not limited to the following:

1. Mucosal ablation,
2. Gastric artery embolization,
3. Intragastric balloon, OR
4. Duodenal-jejunal endoluminal liner
6. Surgery of any kind within 3 months prior to Day 0 (Baseline) with the exception of minor procedures or determined by the Investigator to be clinically relevant for participation in the study, or any planned surgery during the study.
7. Renal impairment as estimated glomerular filtration rate (eGFR) \< 30 mL/min/1.73 m2, calculated at screening using the recommended method for estimating eGFR in adults from the National Kidney Foundation Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI 2021) equation (Charles 2024).
8. Acute kidney injury or dialysis within the last 3 months prior to the screening visit
9. Current malignancy with the exception of participants with basal cell carcinoma of this skin, suqamous cell carcinoma of the skin, or carcinoma in situ (e.g., breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy.
10. Positive results at screening that indicate an active virological infection at screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg) or hepatitis C virus.
11. Previous organ or bone marrow transplant.
12. History and/or confirmed seizure disorder; reports febrile and/or idiopathic seizures occurring within the past 2 years.
13. Unstable cardiovascular disease as determined by the Investigator or medical history of myocardial infarction or arterial thromboembolic events within 3 months prior to screening or severe or unstable angina, NYHA Class III or IV disease, or a 12-lead ECG showing QTc interval (Fridericia's formula) \>450 msec (males) or \>470 msec (females), any tachyarrhythmia, pathologic Q waves, or any other abnormality deemed clinically significant in the opinion of the investigator.
14. History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the participants' participation for the full duration of the study, or is not in the best interest of the participants to participate in the opinion of the Investigator.
15. Have history of any of the following:

1. Major Depressive Disorder (MDD)
2. A lifetime history of suicide attempts
3. Other severe psychiatric disorder(s) (e.g., schizophrenia, bipolar disorder, etc.)
4. Use of anti-depressant medication
16. Have a Patient Health Questionnaire-9 (PHQ-9) score ≥ 10 at screening and/or Day 0 (Baseline).
17. At screening or Day 0 (Baseline) have any suicidal ideation of type 4 or 5 on the Columbia Suicide Severity Rating Scale (C-SSRS) or any suicidal behavior in the lifetime or previous month.
18. History or presence of drug abuse (including medicinal and recreational marijuana use) within the 1 year prior to Day 0 (Baseline) or urine drug assay at screening or Day 0 (Baseline) positive (includes: amphetamines, barbiturates, cocaine metabolites, opiates, benzodiazepines, and cannabinoids).
19. Prior exposure to study drugs

1. Nimacimab injection
2. Glucagon-like peptide-1 (GLP-1) agonist.
3. Allergy to active or inactive component of Nimacimab
4. Allergy to active or inactive component(s) of GLP-1 agonist
20. Female participants who are pregnant or breastfeeding or expecting to conceive children within the projected duration of the study.
21. Aspartate aminotransferase (AST) or alanine transaminase (ALT) \> 3 × upper limit of normal (ULN) at screening. One repeat test may be allowed within 7 days of the receiving the result, at the discretion of the Investigator.
22. Absolute neutrophil count ≤ 1.5 × 109/L.
23. Platelets ≤ 120 × 109/L.
24. Hemoglobin (Hgb) \< 13.5 g/dL in males and \< 12 g/dL in females.
25. Currently or have participated in a study of an investigational product or used an investigational device within 12 weeks and/or 5 times the half-life of the investigational product prior to the (Day 0, Baseline) first dose of study treatment.
26. Current use of any medication that is known to cause weight loss or participation in a structured weight loss program within the last 6 months prior to screening
27. Employees of the Sponsor, contract research organization (CO) involved in the conduct of the study, or investigational site, or immediate family members of the employees.
28. History of regular alcohol consumption exceeding 14 drinks/week for females or 21 drinks/week for males (1 drink = 5 ounces \[150 mL\] of wine or 12 ounces \[360 mL\] of beer of 1.5 ounces \[45 mL\] of hard liquor) within 6 months of screening.

Study Extension Eligibility Criteria

Participants are eligible to be included in the extension only if all the following criteria apply:

1. Completed Week 26 of the Main study including Week 25 on study treatment. Participants who completed Week 26 of the Main study but discontinued study treatment prior to that visit are not eligible to participate.

1. Participants in the combination arms (Nimacimab Injection or placebo + Semaglutide) of the Main study must roll over within 4 weeks of Main study Week 26
2. Participants in the monotherapy arms (Nimacimab Injection or placebo) of the Main study can roll over anytime after they have completed Week 26 on study treatment but before completing the 13-week follow-up period.
2. Does not have any condition that interferes with the ability to complete the Extension in the judgment of the investigator.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Skye Bioscience, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Chief Development Officer

Role: STUDY_DIRECTOR

Skye Bioscience, Inc.

Locations

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Pinnacle Research Group

Anniston, Alabama, United States

Site Status

Diablo Clinical Research, Inc.

Walnut Creek, California, United States

Site Status

Chase Medical Research, LLC

Waterbury, Connecticut, United States

Site Status

ACCEL Research Sites

Atlanta, Georgia, United States

Site Status

Center for Advanced Research & Education

Gainesville, Georgia, United States

Site Status

L-MARC Research Center

Louisville, Kentucky, United States

Site Status

Be Well Clinical Studies

Lincoln, Nebraska, United States

Site Status

Palm Research Center

Las Vegas, Nevada, United States

Site Status

ActivMed Practices & Research

Portsmouth, New Hampshire, United States

Site Status

Weill Cornell Medicine

New York, New York, United States

Site Status

Accellacare of Wilmington

Wilmington, North Carolina, United States

Site Status

Lillestol Research, LLC

Fargo, North Dakota, United States

Site Status

Velocity Clinical Research, Dallas

Dallas, Texas, United States

Site Status

Be Well Clinical Studies

Round Rock, Texas, United States

Site Status

Charlottesville Medical Research

Charlottesville, Virginia, United States

Site Status

Rainier Clinical Research Center

Renton, Washington, United States

Site Status

Countries

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United States

Other Identifiers

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SBI-018-201

Identifier Type: -

Identifier Source: org_study_id

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