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mRNA Based-Covid-19 Vaccine Effects on Blood Glucose Levels

Effect of mRNA Based-Covid-19 Vaccine on Blood Glucose Levels Recorded by Continuous Glucose Monitoring in Patients With a History of Diabetes Mellitus Type I and Type II.

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04923386
Enrollment
25
Registered
2021-06-11
Start date
2021-06-15
Completion date
2022-02-01
Last updated
2022-08-17

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

Conditions

Diabetes Mellitus, Type 1, Diabetes Mellitus, Type 2, Hyperglycemia, Vaccine Adverse Reaction

Keywords

mRNA Vaccine, Hyperglycemia, Hypoglycemia, Diabetes Mellitus, Type 2, Diabetes Mellitus, Type 1, COVID-19 Vaccine

Brief summary

To determine if patients with a history of Diabetes Mellitus Type I or II developed a change in blood glucose levels as reported on Continuous glucose monitoring devices (CGMS) within the first week following administration of each dose of the COVID-19 vaccine.

Detailed description

A retrospective review of all patient data from the Dexcom and Libre CGMS devices available at a single site, solo endocrinology practice will be obtained. This data will include fasting morning glucose, postprandial glucose, and daily glucose area under the curve for seven days following vaccination administration, as well as daily glucose area under the curve seven days prior to vaccine administration that will be used as a control. Patients \>=18 y/o with a history of Diabetes Mellitus Type I or Type II will be selected. Brand of vaccine administered (Moderna or Pfizer-BioNTech) and the change in average blood glucose, peak blood glucose, and percentage of time spent in normal range as well as above average range of blood glucose level following vaccine administration will be assessed. Patients will fill out a visual analog symptom scale based on how symptomatic and uncomfortable they were following each dose of the COVID-19 vaccine. Patients will describe side effects that they experienced following each dose of the COVID-19 vaccine.

Interventions

OTHERNone (not interventional)

This is not an intervention

Sponsors

Levenson, David I., M.D.
Lead SponsorINDIV

Study design

Observational model
CASE_ONLY
Time perspective
RETROSPECTIVE

Eligibility

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

Inclusion criteria

* Clinical diagnosis of Diabetes Mellitus Type I or Type II * Received the Moderna COVID-19 vaccine or Pfizer-BioNTech COVID-19 vaccine

Exclusion criteria

* Patients \<18y/o. * Patients that did not receive a COVID-19 vaccine. * Patients who did not have a CGMS downloaded for a week prior and a week after vaccination.

Design outcomes

Primary

MeasureTime frameDescription
Change in AUC glucose level above expected baseline7 daysChange in area under the curve glucose level above expected baseline

Secondary

MeasureTime frameDescription
Change in peak glucose level above expected baseline7 daysChange in peak glucose level above expected baseline
Change in fasting blood glucose levels above expected baseline7 daysChange in fasting blood glucose levels above expected baseline

Countries

United States

Outcome results

None listed

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