NCT03304782

Brief Summary

Almost half of all deliveries in the United States are of nulliparous patients. They have been identified as an at-risk population for preterm birth. Historically, the most significant risk factor for preterm birth is a prior history of preterm birth, which cannot be applied to a nulliparous population. Forecasting adverse outcomes in first time moms is difficult to predict and prevent. Historically, physicians have prescribed a restriction in activity level for those at risk for preterm delivery. The utility of this intervention has yet to be prospectively and quantitatively studied. The Fitbit activity tracker is a wearable device that has been extensively used in medical research, in an attempt to quantitatively identify how patient activity levels can improve medical outcomes. The study uses the Fitbit device in nulliparous patients, remotely track their activity levels throughout pregnancy, and assess pregnancy outcomes. Because of the significant and long-standing health disparity in the incidence of preterm delivery, the investigators will use the "Everyday Discrimination Scale", a validated battery of racism and health to see how a patient's stress related to perceived discrimination may modify the risk of preterm delivery.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
150

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Oct 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 29, 2017

Completed
10 days until next milestone

First Posted

Study publicly available on registry

October 9, 2017

Completed
15 days until next milestone

Study Start

First participant enrolled

October 24, 2017

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2019

Completed
Last Updated

November 29, 2019

Status Verified

November 1, 2019

Enrollment Period

1.7 years

First QC Date

September 29, 2017

Last Update Submit

November 26, 2019

Conditions

Keywords

Preterm BirthFitbitPreterm Delivery

Outcome Measures

Primary Outcomes (1)

  • Difference in number of steps

    The difference in steps per day between women that deliver preterm versus those that deliver at term will be analyzed.

    Duration of pregnancy (< 9months)

Secondary Outcomes (10)

  • Average number of steps for those women who deliver prior to 37 weeks gestation

    Duration of pregnancy (< 9months)

  • Average number of steps for those women who delivery prior to 34 weeks gestation

    Duration of pregnancy (< 9months)

  • Change in steps per week

    Duration of pregnancy (< 9months)

  • Number of triage visits

    Duration of pregnancy (< 9months)

  • Number of inpatient hospitalizations

    Duration of pregnancy (< 9months)

  • +5 more secondary outcomes

Study Arms (2)

Preterm birth

Data collected using Fitbit activity tracker from women with delivery prior to 37 weeks gestation

Other: Fitbit activity tracker

Full-term birth

Data collected using Fitbit activity tracker from women with delivery after 37 weeks gestation

Other: Fitbit activity tracker

Interventions

Wearable device that records the number of steps a person takes throughout the day

Full-term birthPreterm birth

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who are having their first baby, and have a low risk pregnancy

You may qualify if:

  • Documented single viable intrauterine pregnancy at the time of enrollment
  • Nulliparous women
  • At least 18 years of age
  • Access to a smartphone or computer

You may not qualify if:

  • Known or suspected major congenital anomalies or aneuploidy
  • Fetal demise
  • Multiple gestation
  • Known maternal medical complications (increasing patient risk for indicated (planned) preterm delivery:
  • Pre-gestational diabetes White's Class D or worse
  • Cancer (undergoing treatment)
  • Current hyperthyroidism if not adequately controlled
  • Renal disease with altered renal function (serum creatinine \> 1.5)
  • Systemic lupus, scleroderma, polymyalgia rheumatica
  • Active liver disease (acute hepatitis, chronic active hepatitis, persistently abnormal liver enzymes)
  • Platelet or red blood cell disorder
  • Chronic pulmonary disease (aside from asthma)
  • Known HIV positive with viral load greater than 1,000 copies/ml or cluster of differentiation 4 (CD4) count less than 350/mm3
  • Current or planned cerclage
  • Planned delivery prior to 37 weeks
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Columbia University Medical Center

New York, New York, 10032, United States

Location

Related Publications (1)

  • Booker WA, Ekpe EE, Handal-Orefice RC, Zhang Y, Cande A, Gyamfi-Bannerman C, Nieto V. Quantitative activity levels and gestational age at delivery: a prospective cohort study among nulliparous women. Am J Obstet Gynecol MFM. 2022 Jan;4(1):100503. doi: 10.1016/j.ajogmf.2021.100503. Epub 2021 Oct 17.

MeSH Terms

Conditions

Premature Birth

Condition Hierarchy (Ancestors)

Obstetric Labor, PrematureObstetric Labor ComplicationsPregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital Diseases

Study Officials

  • Cynthia Gyamfi, M.D.

    Columbia University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

September 29, 2017

First Posted

October 9, 2017

Study Start

October 24, 2017

Primary Completion

July 1, 2019

Study Completion

July 1, 2019

Last Updated

November 29, 2019

Record last verified: 2019-11

Data Sharing

IPD Sharing
Will not share

Locations