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CompletedNCT00197678Updated Nov 11, 2010

Multivitamin Dosage Regimens in the Prevention of Adverse Pregnancy Outcomes Among HIV-Positive Women

A Phase 3 interventional study of Multivitamins-Multiples of RDA and Multivitamins-Single RDA in HIV Infections, sponsored by Harvard School of Public Health (HSPH). Completed at 1 site in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2010-11-11.

Sponsored by Harvard School of Public Health (HSPH) · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
1,141
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

The purpose of this study is to examine effects of daily administration of multivitamin supplements at doses resembling the Recommended Dietary Allowance (RDA) during pregnancy to HIV positive women decreases the risks of low birth weight (\<2500 g), and pre-term birth (\< 37 weeks gestation), compared to multivitamin supplements at doses above the RDA.

Read the detailed description

This is a randomized clinical trial conducted to examine effects of daily administration of multivitamin supplements at doses resembling the Recommended Dietary Allowance (RDA) during pregnancy to HIV positive women decreases the risks of low birth weight (\<2500 g), and pre-term birth (\< 37 weeks gestation), compared to multivitamin supplements at doses above the RDA. All women receive standard prenatal care, including nevirapine for the prevention of mother-to-child transmission of HIV.

02

Conditions studied

  • HIV Infections

Keywords

  • HIV
  • AIDS
  • Multivitamins
  • Pregnancy Outcomes
  • Women
  • Tanzania
  • Africa
03

In context

HIV Infections

4,340 studies on the registry are indexed under HIV Infections; 240 are open to participants now.

This study's enrollment of 1,141 is above the median of 83 across 3,312 interventional studies indexed under HIV Infections.

Browse HIV Infections studies →

Lead sponsor

Harvard School of Public Health (HSPH) is the lead sponsor of 154 studies on the registry; 10 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

- HIV-positive pregnant women who are between 12 and 27 weeks gestation who intend to stay in Dar es Salaam until delivery.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
1,141 participants (actual)

Study arms

  • Experimental
    Multivitamins-Single RDA

    Multivitamins at doses resembling a single daily Recommended Dietary Allowance (RDA)

    Dietary Supplement: Multivitamins-Single RDA

  • Active comparator
    Multivitamins-Multiples of RDA

    Multivitamin supplements at multiples of the Recommended Dietary Allowance (RDA)

    Dietary Supplement: Multivitamins-Multiples of RDA

Interventions

  • Dietary supplementMultivitamins-Multiples of RDA

    20 mg B1, 20 mg B2, 25 mg B6, 50 mcg B12, 100 mg niacin, 500 mg C, 30 mg E, 0.8 mg folic acid taken orally once per day until 6 weeks after delivery

  • Dietary supplementMultivitamins-Single RDA

    1.4 mg B1, 1.4 mg B2, 1.9 mg B6, 50 mcg B12, 100 mg niacin, 70 mg C, 10 mg E, and 0.4 mg folic acid taken orally once per day until 6 weeks after delivery

06

What researchers measure

Primary outcomes

  1. Low birthweight (< 2500 g)

    Time frame: Delivery

  2. Pre-term birth (< 36 weeks gestation)

    Time frame: Monthly until the 32nd week of pregnancy, once every 2 weeks from 32nd to 36th week

07

Study locations

1 site
  • Harvard School of Public Health
    Boston, Massachusetts 02115, United States
08

References and documents

Publications

  • Kawai K, Kupka R, Mugusi F, Aboud S, Okuma J, Villamor E, Spiegelman D, Fawzi WW. A randomized trial to determine the optimal dosage of multivitamin supplements to reduce adverse pregnancy outcomes among HIV-infected women in Tanzania. Am J Clin Nutr. 2010 Feb;91(2):391-7. doi: 10.3945/ajcn.2009.28483. Epub 2009 Nov 25. PubMed 19939985 ↗
09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Nov 2002, a primary completion of Jul 2005 and a completion of Jul 2005. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 13, 2005
First posted
Sep 20, 2005
Start
Nov 2002
Primary completionActual
Jul 2005
CompletionActual
Jul 2005
Last update
Nov 11, 2010
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 11, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00197678
Collaborators
Muhimbili University of Health and Allied Sciences
First posted
Sep 20, 2005
Start date
Nov 2002
Primary completion
Jul 2005
Completion
Jul 2005
Last update
Nov 11, 2010

Study contacts

Wafaie W. Fawzi, MD,DrPH
principal investigator · Harvard School of Public Health (HSPH)

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2010. You cannot join it, but the record below documents what was studied.

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