NCT03750968

Brief Summary

This study is designed to test the hypotheses that (1) the third trimester of pregnancy is a period of maternal systemic and ocular carotenoid depletion; (2) prenatal supplementation with 10 milligrams of lutein and 2 milligrams of zeaxanthin will have significant effects on ocular and systemic biomarkers of maternal and infant carotenoid status relative to a matched, standard-of-care prenatal supplement without added lutein and zeaxanthin; and (3) newborn infants with the highest systemic and ocular carotenoid status will have more mature foveal structure. Mothers will be enrolled in the study during their first trimester, and will take the study carotenoid or control supplements for 6 to 8 months. The final study outcome measurements of mothers and infants will be completed within two weeks of the baby's birth.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
47

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Sep 2019

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

November 16, 2018

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 23, 2018

Completed
10 months until next milestone

Study Start

First participant enrolled

September 26, 2019

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2022

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

July 11, 2023

Completed
Last Updated

July 11, 2023

Status Verified

June 1, 2023

Enrollment Period

2.4 years

First QC Date

November 16, 2018

Results QC Date

May 3, 2023

Last Update Submit

June 17, 2023

Conditions

Outcome Measures

Primary Outcomes (3)

  • Change in Maternal Macular Carotenoid Levels From Enrollment to Birth of Infant

    measured in units of macular pigment optical volume (MPOV). Details regarding methods and criteria used to assess this outcome measure and interpret the values are in the published protocol available at https://doi.org/10.1186/s13063-021-05244-2

    up to 13 weeks gestation to birth

  • Change in Maternal Serum Carotenoid Levels From Enrollment to Birth of Infant

    We are reporting only lutein + zeaxanthin concentrations. Unit of measurement is in nanograms per milliliter (ng/ml). Details regarding methods and criteria used to assess this outcome measure and interpret the values are in the published protocol available at https://doi.org/10.1186/s13063-021-05244-2

    up to 13 weeks gestation to birth

  • Change in Maternal Skin Carotenoid Levels From Enrollment to Birth of Infant

    Maternal skin carotenoid levels are measured in Raman units.

    up to 13 weeks gestation to birth

Secondary Outcomes (3)

  • Infant Macular Carotenoid Levels as Determined by Macular Pigment Optical Density

    Birth

  • Infant Serum Carotenoid Levels as Determined With High Performance Liquid Chromatography

    Birth

  • Infant Skin Carotenoid Levels as Determined With Resonance Raman Spectroscopy

    Birth

Study Arms (2)

Carotenoid group

EXPERIMENTAL

The Carotenoid group will receive a commercially available prenatal vitamin/mineral/Docosahexaenoic acid (DHA) softgel plus a softgel containing lutein/zeaxanthin in safflower oil.

Drug: Carotenoid Group

Control group

ACTIVE COMPARATOR

The Control group will receive the same prenatal vitamin/mineral/Docosahexaenoic acid (DHA) softgel plus a softgel containing only safflower oil.

Dietary Supplement: Control Group

Interventions

Softgel active ingredients: Lutein 10 mg and Zeaxanthin 2 mg in safflower oil

Also known as: Softgel with lutein and zeaxanthin
Carotenoid group
Control GroupDIETARY_SUPPLEMENT

Placebo ingredients: Safflower oil

Also known as: Softgel without lutein and zeaxanthin
Control group

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Pregnant women, 18 or older of all races and ethnicities who have an uncomplicated obstetric history and plan to deliver either vaginally or by Caesarian section at the University of Utah for their current pregnancy.

You may not qualify if:

  • Women who have regularly taken carotenoid supplements containing more than 0.5 mg of lutein and/or zeaxanthin daily during the six months prior to screening
  • Women who have significant eye disease associated with macular pigment abnormalities such as Stargardt disease, albinism, or macular telangiectasia type II (MacTel).
  • Women with conditions associated with high-risk pregnancy such as adolescent pregnancy, multifetal pregnancy, current or past history of diabetes, pre-eclampsia, previous premature delivery, drug abuse or other significant medical illness

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Utah John A. Moran Eye Center

Salt Lake City, Utah, 84132, United States

Location

Related Publications (2)

  • Addo EK, Allman SJ, Arunkumar R, Gorka JE, Harrison DY, Varner MW, Bernstein PS. Systemic Effects of Prenatal Carotenoid Supplementation in the Mother and her Child: The Lutein and Zeaxanthin in Pregnancy (L-ZIP) Randomized Trial -Report Number 1. J Nutr. 2023 Aug;153(8):2205-2215. doi: 10.1016/j.tjnut.2023.05.024. Epub 2023 May 27.

  • Addo EK, Gorusupudi A, Allman S, Bernstein PS. The Lutein and Zeaxanthin in Pregnancy (L-ZIP) study-carotenoid supplementation during pregnancy: ocular and systemic effects-study protocol for a randomized controlled trial. Trials. 2021 Apr 22;22(1):300. doi: 10.1186/s13063-021-05244-2.

MeSH Terms

Interventions

LuteinZeaxanthinsControl Groups

Intervention Hierarchy (Ancestors)

XanthophyllsCarotenoidsPolyenesAlkenesHydrocarbons, AcyclicHydrocarbonsOrganic ChemicalsCyclohexenesCyclohexanesCycloparaffinsHydrocarbons, AlicyclicHydrocarbons, CyclicTerpenesPigments, BiologicalBiological FactorsEpidemiologic Research DesignEpidemiologic MethodsInvestigative TechniquesResearch DesignMethods

Limitations and Caveats

A limitation of this study was its lack of participant racial, ethnic and socioeconomic diversity. Also, by design, this first-in-humans, randomized clinical trial was limited to low-risk pregnancies. Due to funding and logistical limitations, we could not follow the mothers and their infants beyond their postpartum visit. This meant we were not able to assess the role of maternal breastmilk as a continued source of lutein an zeaxanthin during the first months of life.

Results Point of Contact

Title
Paul Bernstein, MD, PhD
Organization
University of Utah John A. Moran Eye Center

Study Officials

  • Paul S Bernstein, MD, PhD

    University of Utah Moran Eye Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor, Ophthalmology/Visual Sciences

Study Record Dates

First Submitted

November 16, 2018

First Posted

November 23, 2018

Study Start

September 26, 2019

Primary Completion

January 31, 2022

Study Completion

January 31, 2022

Last Updated

July 11, 2023

Results First Posted

July 11, 2023

Record last verified: 2023-06

Data Sharing

IPD Sharing
Will not share

Locations