CClinicalTrials.gg
CompletedNCT02515773MOBILITYUpdated Jan 14, 2025Results posted

Metformin for Overweight & OBese ChILdren and Adolescents With BDS Treated With SGAs

A Phase 4 interventional study of Metformin and healthy lifestyle intervention (LIFE) in Bipolar Disorder, sponsored by Melissa Delbello. Completed at 29 sites in United States. Open to participants aged 8 Years to 19 Years. Per ClinicalTrials.gov, last updated 2025-01-14.

Sponsored by Melissa Delbello · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
1,565
Allocation
Randomized
Ages
8 Years to 19 Years
Sex
All
01

Study summary

A prospective, large, pragmatic, randomized trial to study the impact of METFORMIN and healthy lifestyle intervention (LIFE) vs. LIFE alone on patient-centered outcomes of body weight, SGA-adherence and satisfaction, psychiatric symptom burden (e.g. mood/anxiety), and Quality of Life.

Read the detailed description

The investigators propose to recruit 1800 overweight/obese youth with Bipolar Spectrum Disorder (BSD) who are prescribed second generation anti psychotics (SGAs) from at least 24 public and private mental health practices in the Greater Cincinnati and New York City regions, (approximately 900 each from \~12 Cincinnati region and \~12 Long Island/New York mental health treatment sites) to participate in the proposed patient-centered large pragmatic trial examining the effectiveness of MET and LIFE vs. LIFE alone. Patients will be eligible if they are ages 8-17 years old, inclusive, overweight or obese (BMI > 85%), continuing or starting treatment with at least one SGA (i.e., olanzapine, clozapine, risperidone, quetiapine, aripiprazole, ziprasidone, iloperidone, lurasidone, paliperidone, or asenapine) and have a clinical diagnosis of BSD (bipolar I or II disorder, cyclothymia, or bipolar or mood disorder not otherwise specified [or by Diagnostic and Statistical Manual of Mental Disorders V (DSM-5), other specified bipolar or mood disorder). The enrollment rate will be 2-3 patients/month/site for a recruitment time of 30 months.

02

Conditions studied

  • Bipolar Disorder
03

In context

Overweight

3,670 studies on the registry are indexed under Overweight; 849 are open to participants now.

This study's enrollment of 1,565 is above the median of 73 across 3,175 interventional studies indexed under Overweight.

Browse Overweight studies →

Lead sponsor

This is the only study on the registry with Melissa Delbello as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
8 Years to 19 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Inpatient or outpatient age 8-19 years inclusive; participants must live with a parent, guardian, or caregiver;
  2. Fluent in English;
  3. Diagnosed or told by a clinician that they have any of the following bipolar spectrum disorders (BSD): bipolar I, bipolar II, unspecified bipolar and related disorders, Disruptive Mood Dysregulation Disorder (DMDD), cyclothymic disorder, other specified bipolar and related disorders, as well as mood disorder not otherwise specified (if diagnosed in the past as per DSM-IV);
  4. Body mass index >85%ile for age and sex by standard growth charts;
  5. Received a new or ongoing prescription for at least one SGA (i.e., olanzapine, clozapine, risperidone, quetiapine, aripiprazole, ziprasidone, iloperidone, lurasidone, paliperidone, brexpiprazole or cariprazine) that is not prescribed as a PRN medication;

Exclusion criteria

Exclusion Criteria:

  1. Patients will be excluded if they have had exposure to a total daily dose of MET 1000 mg bid for at least 2 weeks in the past 3 months;
  2. Patients will be excluded if they could not tolerate MET during the recommended titration schedule outlined in the protocol;
  3. Major neurological or medical illnesses that affect weight gain (e.g., unstable thyroid disease) or require a systemic medication that might impact weight or glucose regulation (e.g., diabetes mellitus [insulin], chronic renal failure [steroids]);
  4. Fasting glucose ≥ 126 mg/dL on 2 occasions during screening indicating need for prompt treatment;
  5. If lab results are available in the last 6 months, then a serum creatinine ≥1.3 mg/dL on 2 occasions during screening and/or follow-up, indicating potential impairment of renal functioning;
  6. Pregnant or breast feeding;
  7. Children and caregivers who are unable to complete assessments for any reason;
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
1,565 participants (actual)

Study arms

  • Experimental
    MET and LIFE

    Participants randomized to this group will receive both Metformin and lifestyle intervention.Participants randomized to treatment with MET will start at a dose of 500 mg orally at night and slowly titrated in 2-week intervals to ensure that each patient achieves maximum insulin-sensitizing effects of the drug while minimizing the chance of side effects. Investigators will also recommend that MET be taken with food to minimize side effects. If a participant's BMI percentile \<5% (=underweight) his/her treatment with MET will be discontinued. Although the risk of low vitamin B12 while taking MET is associated with age \> 50 years and having type II diabetes, Investigator will monitor B12 levels and a CBC throughout study participation.

    Drug: Metformin · Behavioral: healthy lifestyle intervention (LIFE)

  • Experimental
    Healthy lifestyle intervention (LIFE)

    Participants randomized to this group will receive just lifestyle intervention alone.This healthy lifestyle intervention (LIFE) consists of counseling participants and families regarding a healthy eating plan, physical activity and sedentary activities. Prior to study initiation, clinical site staff will participate in a live (or taped) training session from a dietician to lean to administer LIFE. A trained site staff member (e.g. medical assistant or case manager) will meet with participants and their families for a 15-20 minute session at baseline that will focus on nutritional issues using the Traffic Light Plan (TLP).

    Behavioral: healthy lifestyle intervention (LIFE)

Interventions

  • DrugMetformin

    Metformin - to achieves maximum insulin-sensitizing effects

    Also known as: GLUCOPHAGE

  • Behavioralhealthy lifestyle intervention (LIFE)

    Healthy Life style intervention

    Also known as: LIFE

06

What researchers measure

Primary outcomes

  1. Change in BMI Z-score From Baseline to Month 6 in ITT Sample

    Raw body mass index (BMI) is calculated as (weight(kg)/ height(m)2). This raw BMI value is converted to a normalized BMI z-score, adjusted for age and sex using US Centers for Disease Control and Prevention growth charts. A z-score equal to 0 indicates the population mean and larger z-scores are heavier weights and worse outcomes.

    Time frame: Baseline to Month 6

  2. Change in BMI Z-score From Baseline to Month 24 in ITT Sample

    Raw body mass index (BMI) is calculated as (weight(kg)/ height(m)2). This raw BMI value is converted to a normalized BMI z-score, adjusted for age and sex using US Centers for Disease Control and Prevention growth charts. A z-score equal to 0 indicates the population mean and larger z-scores are heavier weights and worse outcomes.

    Time frame: Baseline to Month 24

  3. Change in BMI Z-score From Baseline to Month 6 in Per Protocol Sample

    Raw body mass index (BMI) is calculated as (weight(kg)/ height(m)2). This raw BMI value is converted to a normalized BMI z-score, adjusted for age and sex using US Centers for Disease Control and Prevention growth charts. A z-score equal to 0 indicates the population mean and larger z-scores are heavier weights and worse outcomes.

    Time frame: Baseline to Month 6

  4. Change in BMI Z-score From Baseline to Month 24 in Per Protocol Sample

    Raw body mass index (BMI) is calculated as (weight(kg)/ height(m)2). This raw BMI value is converted to a normalized BMI z-score, adjusted for age and sex using US Centers for Disease Control and Prevention growth charts. A z-score equal to 0 indicates the population mean and larger z-scores are heavier weights and worse outcomes.

    Time frame: Baseline to Month 24

07

Results

Posted Jan 14, 2025

Participant flow

Participant flow — Overall Study
MilestoneMET and LIFEHealthy Lifestyle Intervention (LIFE)
Started579720
Followed randomized treatment (per-protocol sample)558686
Completed360454
Not completed219266
Withdrew: Withdrawal by subject122
Withdrew: Lost to follow-up119126
Withdrew: Discharged from clinic services5384
Withdrew: Censored (study ended before participant could complete)1824
Withdrew: Follow-up at non-study site816
Withdrew: Moved from area914

Outcome measures

PrimaryChange in BMI Z-score From Baseline to Month 6 in ITT Sample

Raw body mass index (BMI) is calculated as (weight(kg)/ height(m)2). This raw BMI value is converted to a normalized BMI z-score, adjusted for age and sex using US Centers for Disease Control and Prevention growth charts. A z-score equal to 0 indicates the population mean and larger z-scores are heavier weights and worse outcomes.

Time frame:
Baseline to Month 6
Reported as:
Mean · Z-score
Change in BMI Z-score From Baseline to Month 6 in ITT Sample
Z-scoreMET and LIFEHealthy Lifestyle Intervention (LIFE)
Change in BMI Z-score From Baseline to Month 6 in ITT Sample-0.08 ± 0.290.00 ± 0.29
Statistical analysis
  • MET and LIFE vs Healthy Lifestyle Intervention (LIFE) · ANCOVA · p = <0.001 (This is a calculated p-value less than 0.001) · Mean difference (net): 0.08
PrimaryChange in BMI Z-score From Baseline to Month 24 in ITT Sample

Raw body mass index (BMI) is calculated as (weight(kg)/ height(m)2). This raw BMI value is converted to a normalized BMI z-score, adjusted for age and sex using US Centers for Disease Control and Prevention growth charts. A z-score equal to 0 indicates the population mean and larger z-scores are heavier weights and worse outcomes.

Time frame:
Baseline to Month 24
Reported as:
Mean · Z-score
Change in BMI Z-score From Baseline to Month 24 in ITT Sample
Z-scoreMET and LIFEHealthy Lifestyle Intervention (LIFE)
Change in BMI Z-score From Baseline to Month 24 in ITT Sample-0.19 ± 1.00-0.11 ± 0.87
Statistical analysis
  • MET and LIFE vs Healthy Lifestyle Intervention (LIFE) · ANCOVA · p = 0.044 · Mean difference (net): 0.07
PrimaryChange in BMI Z-score From Baseline to Month 6 in Per Protocol Sample

Raw body mass index (BMI) is calculated as (weight(kg)/ height(m)2). This raw BMI value is converted to a normalized BMI z-score, adjusted for age and sex using US Centers for Disease Control and Prevention growth charts. A z-score equal to 0 indicates the population mean and larger z-scores are heavier weights and worse outcomes.

Time frame:
Baseline to Month 6
Reported as:
Mean · Z-score
Change in BMI Z-score From Baseline to Month 6 in Per Protocol Sample
Z-scoreMET and LIFEHealthy Lifestyle Intervention (LIFE)
Change in BMI Z-score From Baseline to Month 6 in Per Protocol Sample-0.09 ± 0.460.00 ± 0.42
Statistical analysis
  • MET and LIFE vs Healthy Lifestyle Intervention (LIFE) · ANCOVA · p = <0.001 (This is a calculated p-value less than 0.001) · Mean difference (net): 0.08
PrimaryChange in BMI Z-score From Baseline to Month 24 in Per Protocol Sample

Raw body mass index (BMI) is calculated as (weight(kg)/ height(m)2). This raw BMI value is converted to a normalized BMI z-score, adjusted for age and sex using US Centers for Disease Control and Prevention growth charts. A z-score equal to 0 indicates the population mean and larger z-scores are heavier weights and worse outcomes.

Time frame:
Baseline to Month 24
Reported as:
Mean · Z-score
Change in BMI Z-score From Baseline to Month 24 in Per Protocol Sample
Z-scoreMET and LIFEHealthy Lifestyle Intervention (LIFE)
Change in BMI Z-score From Baseline to Month 24 in Per Protocol Sample-0.21 ± 1.11-0.12 ± 1.01
Statistical analysis
  • MET and LIFE vs Healthy Lifestyle Intervention (LIFE) · ANCOVA · p = 0.041 · Mean difference (net): 0.09

Adverse events

Collected over 30 months. Non-serious events are listed at a 2% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
MET and LIFE0/579 (0%)12/579 (2.1%)352/558 (63.1%)
Healthy Lifestyle Intervention (LIFE)0/720 (0%)25/720 (3.5%)339/686 (49.4%)
Most frequent serious events
Showing 10 of 17
Most frequent serious events
EventMET and LIFEHealthy Lifestyle Intervention (LIFE)
abdominal painGeneral disorders5/5791/720
pneumoniaGeneral disorders0/5793/720
pyelonephritisGeneral disorders0/5793/720
urethral/kidney stoneGeneral disorders0/5793/720
infectionGeneral disorders0/5793/720
refractory headachesGeneral disorders2/5790/720
complications of tonsillectomyGeneral disorders2/5792/720
seizuresGeneral disorders1/5792/720
allergic reactionGeneral disorders0/5792/720
neck dystoniaGeneral disorders1/5790/720
Most frequent other events
Most frequent other events
EventMET and LIFEHealthy Lifestyle Intervention (LIFE)
NauseaGastrointestinal disorders117/55869/686
Stomach CrampsGastrointestinal disorders110/55857/686
DiarrheaGastrointestinal disorders105/55840/686
FlatulenceGastrointestinal disorders83/55853/686
Increased AppetiteGeneral disorders56/55891/686
VomitingGastrointestinal disorders70/55832/686
SedationGeneral disorders20/55841/686
HeadacheGeneral disorders24/55831/686
FatigueGeneral disorders11/55821/686
SomnolenceGeneral disorders14/55820/686

Baseline characteristics

Modified intent-to-treat sample, which includes all randomized patients who had a post-randomization visit and started their randomized intervention.

Age, Continuous
Age, Continuous(Years)MET and LIFEHealthy Lifestyle Intervention (LIFE)Total
Mean14.0 ± 2.813.8 ± 2.913.9 ± 2.9
Sex: Female, Male
Sex: Female, Male(Participants)MET and LIFEHealthy Lifestyle Intervention (LIFE)Total
Female273341614
Male306379685
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)MET and LIFEHealthy Lifestyle Intervention (LIFE)Total
Hispanic or Latino6096156
Not Hispanic or Latino5176241141
Unknown or Not Reported202
Race (NIH/OMB)
Race (NIH/OMB)(Participants)MET and LIFEHealthy Lifestyle Intervention (LIFE)Total
American Indian or Alaska Native336
Asian111324
Native Hawaiian or Other Pacific Islander112
Black or African American98124222
White399472871
More than one race5078128
Unknown or Not Reported172946
BMI Z-Score
BMI Z-Score(Z-score)MET and LIFEHealthy Lifestyle Intervention (LIFE)Total
Mean1.90 ± 0.481.85 ± 0.461.87 ± 0.47
Obesity
Obesity(Participants)MET and LIFEHealthy Lifestyle Intervention (LIFE)Total
Count of participants385474859
08

Study locations

29 sites
  • The Children's Home of Northern Kentucky
    Covington, Kentucky 41011, United States
  • Jersey Shore Medical Center
    Neptune, New Jersey 07753, United States
  • South Oaks
    Amityville, New York 11701, United States
  • SUNY Downstate/ Kings County Hospital
    Brooklyn, New York 11203, United States
  • Maimonides
    Brooklyn, New York 11219, United States
  • NYCCC
    Brooklyn, New York 11233, United States
  • Northwell Zucker Long Island Jewish Hospital
    Glen Oaks, New York 11004, United States
  • Mount Sinai
    New York, New York 10029, United States
  • LIJ Zucker Hillside Hospital
    New York, New York 11004, United States
  • Child Center of New York,
    Queens, New York 11373, United States
  • NorthShore Child and Family Guidance
    Roslyn Heights, New York 11577, United States
  • StonyBrook
    Stony Brook, New York 11794, United States
  • Lighthouse Youth Services
    Cincinnati, Ohio 45206, United States
  • Central Clinic
    Cincinnati, Ohio 45219, United States
  • Children's Home
    Cincinnati, Ohio 45227, United States
  • Cincinnati Children's Hospital Medical Center
    Cincinnati, Ohio 45229, United States
  • Resident Mood Medication Clinic
    Cincinnati, Ohio 45229, United States
  • St. Aloysius
    Cincinnati, Ohio 45237, United States
  • Talbert House
    Cincinnati, Ohio 45238, United States
  • St. Joseph's Orphanage
    Cincinnati, Ohio 45239, United States
  • Child Focus
    Cincinnati, Ohio 45244, United States
  • NECCO
    Cincinnati, Ohio 45246, United States
  • University Hospital Medical Center Cleveland
    Cleveland, Ohio 44106, United States
  • Nationwide Children's Hospital Columbus
    Columbus, Ohio 43205, United States
  • Ohio State University
    Columbus, Ohio 43210, United States
  • South Community
    Dayton, Ohio, United States
  • Butler Behavioral Health Services
    Hamilton, Ohio 45011, United States
  • TCN Family Solutions
    Xenia, Ohio 45385, United States
  • Seton Family of Hospitals
    Austin, Texas 78712, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Aug 14, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02515773
Lead sponsor
Melissa Delbello
Collaborators
Patient-Centered Outcomes Research Institute
Responsible party
Melissa Delbello (Principal Investigator, University of Cincinnati) — Sponsor-investigator
First posted
Aug 5, 2015
Start date
Dec 2015
Primary completion
Dec 2022
Completion
Jun 2023
Results posted
Jan 14, 2025
Last update
Jan 14, 2025

Study contacts

Melissa P DelBello, MD, MS
principal investigator · University of Cincinnati

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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