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Multivitamin Adherence Following Bariatric Surgery

Adherence to Multivitamin Use Following Bariatric Surgery for Weight Loss

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02124889
Enrollment
24
Registered
2014-04-28
Start date
2014-04-30
Completion date
2016-10-31
Last updated
2019-05-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity

Keywords

bariatric surgery, multivitamin, weight loss, adherence

Brief summary

Additional micronutrient supplementation is required due to the changes in the gastrointestinal anatomy and physiology following bariatric surgery along with decreased dietary intake and rapid weight loss. Good adherence to post-operative vitamins is essential to maintain healthy vitamin levels in the body following bariatric surgery. The hypothesis of this study is that patients receiving a weekly survey intervention will have better adherence to post-operative vitamins.

Interventions

BEHAVIORALWeekly Internet surveys

Subjects will receive weekly Internet surveys asking them how their treatment is working, how often they took the medication, and how easy it was to use the medication.

Sponsors

Celebrate Vitamins
CollaboratorUNKNOWN
Wake Forest University Health Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Investigator)

Masking description

The Pi does not know which participants are randomized to get the weekly survey.

Intervention model description

Participants are assigned to either receive the weekly survey or not.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Planning to undergo a Roux En Y Gastric Bypass or Sleeve Gastrectomy at Wake Forest Baptist Health

Exclusion criteria

* Admission for a psychiatric event in the past year * History of nausea and/or significant complaint of post-operative nausea * History of stricture and/or significant complaint of post-operative stricture * History of ulcer and/or significant complaint of post-operative ulcer * History of major depression or psychiatric disorder

Design outcomes

Primary

MeasureTime frameDescription
Adherence to Multivitamin50 daysPercent of anticipated number of doses the patient has taken, as recorded by a Medication Event Monitoring System (MEMS) cap.

Countries

United States

Participant flow

Participants by arm

ArmCount
Weekly Surveys
Subjects will take the multivitamin, and will also receive weekly Internet surveys asking them questions about the multivitamin treatment. Weekly Internet surveys: Subjects in this arm will receive weekly Internet surveys asking them how their treatment is working, how often they took the medication, and how easy it was to use the medication.
12
No Survey - Control
Subjects will take the multivitamin but will not receive surveys.
12
Total24

Baseline characteristics

CharacteristicNo Survey - ControlTotalWeekly Surveys
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
12 Participants24 Participants12 Participants
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
12 participants24 participants12 participants
Sex: Female, Male
Female
9 Participants19 Participants10 Participants
Sex: Female, Male
Male
3 Participants5 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 120 / 12
other
Total, other adverse events
0 / 120 / 12
serious
Total, serious adverse events
0 / 120 / 12

Outcome results

Primary

Adherence to Multivitamin

Percent of anticipated number of doses the patient has taken, as recorded by a Medication Event Monitoring System (MEMS) cap.

Time frame: 50 days

ArmMeasureValue (MEAN)Dispersion
Weekly SurveysAdherence to Multivitamin32.9 percentage of doses takenStandard Error 5.93
No SurveyAdherence to Multivitamin34.9 percentage of doses takenStandard Error 5.91

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026