ClinicalTrials.gg
TerminatedNCT01682928STRONGUpdated Mar 30, 2020Results posted

Hydrotherapy for the Reversal of Oligohydramnios

An interventional study of IV/Oral Hydration and Bedrest and Hydrotherapy in Oligohydramnios, sponsored by Pediatrix. Terminated at 1 site in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-03-30.

Sponsored by Pediatrix · Not applicable, Interventional, and Treatment

Why this study was terminated
Poor enrollment
Phase
Not applicable
Study type
Interventional
Enrollment
4
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

OBJECTIVE: To assess the efficacy of subtotal immersion therapy as an option to improve maternal intravascular volume thereby improving both maternal and fetal hemodynamic status with reversal of oligohydramnios. This will be measured utilizing the Amniotic Fluid Volume (AFV) as the primary outcome. Secondary outcomes will be measured using Fetal Doppler Studies, Maternal vital signs (Blood Pressure, Pulse Pressure, Weight, Pulse) and input/output.

HYPOTHESIS: Oligohydramnios, secondary to depleted maternal intravascular volume, can be reversed by improving feto- and uteroplacental perfusion with subtotal immersion therapy.

Read the detailed description

BACKGROUND: The volume of amniotic fluid is relevant clinically as derangements that decrease volume result in a condition known as oligohydramnios, which can have profound implications on perinatal outcome. The incidence of oligohydramnios is 2.3%1,2,3 and measurements of amniotic fluid volume (AFV) has become a standard in fetal surveillance in the evaluation of high risk pregnancies as oligohydramnios is associated with intrauterine growth restriction, respiratory distress syndrome, post-maturity syndrome, and chronic fetal hypoxia. Oligohydramnios may also play a role in fetal malpresentation, umbilical cord compression, meconium staining, and increased operative delivery.3,4, 5,6 Oligohydramnios is commonly defined as an AFV of 5 cm or less. An AFV of 8 cm represents the fifth percentile of normal AFV values.7 It has been observed that delivery in the setting of isolated oligohydramnios, irrespective of an otherwise uncomplicated term gestation free of maternal disease, has become routine thereby increasing maternal morbidity particularly in context of operative delivery or failed inductions. 3

In order to understand oligohydramnios it is first important to understand intrauterine water and progressive changes that occur with normal human gestation. At term, it is reported that total water accumulation is approximately 3.5L, with 2400 mL in the fetus, 400 mL in the placenta, and 700 mL in the amniotic fluid.8 In 1989, Brace and colleagues determined amniotic fluid volume (AFV) as a function of gestational age. They reported an increase in mean values from 30mL at 10weeks to 190mL at 16wks to 780mL at 32-35wks after which time AFV decreases, especially in post-term pregnancies. It is important to realize; however, that the pattern of volume fluctuation as a function of gestational age may vary considerably between individuals. As a general rule AFV increases at a rate of 10ml/wk at the beginning of the fetal period, this rate of expansion increases to 50-60ml/wk from 19 to 25wks at which time a gradual decrease begins to take place until the rate of exchange is zero around 34wks.

The pathophysiology of amniotic fluid regulation is not entirely understood at this current date, but it is safe to state that AFV is the integrated sums of the inflow and outflow tracts of the amniotic space.8 Because fluid can move with relative ease between fetal and maternal blood across the placenta and amniotic membranes it stands to reason that a maternal hypovolemia secondary to dehydration would lead to the development of oligohydramnios. This was indeed shown to be the case by Sherer, et al in their 1990 publication. Furthermore, both oral and serum hydration as a way to increase maternal volume have been shown to be effective treatments for oligohydramnios.3,11-16

02

Conditions studied

  • Oligohydramnios

Browse trials for

Keywords

  • Oligohydramnios
  • Hydrotherapy
  • Pregnancy
03

In context

Oligohydramnios

25 studies on the registry are indexed under Oligohydramnios; 5 are open to participants now.

This study's enrollment of 4 is below the median of 91 across 16 interventional studies indexed under Oligohydramnios.

Browse Oligohydramnios studies →

Lead sponsor

Pediatrix is the lead sponsor of 34 studies on the registry; none 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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Maternal Age >18 years
  • Oligohydramnios: diagnosed by sonography (defined AFV\<8cm)
  • Singleton Pregnancy
  • Intact membranes
  • Gestational age 24 - 36 weeks

Exclusion criteria

Exclusion Criteria:

  • Indication for urgent delivery (severe PET, HELLP syndrome, persistent fetal hypoxemia [non-reassuring fetal heart rate pattern])
  • Ruptured amniotic membranes; PPROM, PROM, SROM
  • Fever (>38C)
  • Multiple gestation
  • >37 week gestation
  • Lethal Fetal anomalies and/or demise
  • Maternal Cardiovascular disease
  • Maternal Renal disease
  • Maternal Pulmonary disease (other than asthma)
  • Patients using prostaglandin inhibitors, NSAIDs3,15 (within 1 week of enrollment, other than baby asprin)
  • Non-English speaking
  • Vaginal Infections and/or active skin lesions
  • Placenta Previa and/or Unexplained Vaginal Bleeding
  • > 45
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
4 participants (actual)

Study arms

  • Active comparator
    IV/Oral Hydration and Bedrest

    * Maternal BP (sitting) * Pulse Pressure * Pulse * Urine Specific Gravity BID * Fetal Heart Rate * Maternal Body Weight US Procedures * AC/EFW * Umbilical Artery Doppler Flow (Baseline, day 3, 7 {or Discharge}) * Uterine Artery Doppler Flow (Baseline, day 3, 7 {or Discharge}) * AFI (Baseline, day 3, 7 {or Discharge}) ALL ITEMS ABOVE MUST BE COMPLETED BEFORE: * 1 Liter Water PO over 2 hours * 1 Liter IV Fluid Bolus (NS) then titrated to 75 ml\\hr for duration of the study participation * Strict I/O's * Vital signs

    Drug: IV/Oral Hydration and Bedrest

  • Active comparator
    Hydrotherapy Group

    * Maternal BP (sitting) * Pulse Pressure * Pulse * Urine Specific Gravity BID * Fetal Heart Rate * Maternal Body Weight US Procedures * AC/EFW * Umbilical Artery Doppler Flow (Baseline, day 3, 7 {or Discharge}) o 1 hour +/- 30 minutes after submersion therapy * Uterine Artery Doppler Flow (Baseline, day 3, 7 {or Discharge}) o 1 hour +/- 30 minutes after submersion therapy * AFI (Baseline, day 3, 7 {or Discharge}) o 1 hour +/- 30 minutes after submersion therapy ALL ITEMS ABOVE MUST BE COMPLETED BEFORE: * 1 Liter Water PO over 2 hours * 1 Liter IV Fluid Bolus (NS) then titrated to 75 ml\\hr for duration of the study participation * Strict I/O's * Vital signs * HYDROTHERAPY TWICE DAILY FOR 3-7 DAYS o Blood pressure, pulse, pulse pressure, body weight, and fetal heart rate before and after submersion therapy

    Other: Hydrotherapy

Interventions

  • DrugIV/Oral Hydration and Bedrest

    * Maternal BP (sitting) * Pulse Pressure * Pulse * Urine Specific Gravity BID * Fetal Heart Rate * Maternal Body Weight US Procedures * AC/EFW * Umbilical Artery Doppler Flow (Baseline, day 3, 7 {or Discharge}) * Uterine Artery Doppler Flow (Baseline, day 3, 7 {or Discharge}) * AFI (Baseline, day 3, 7 {or Discharge}) ALL ITEMS ABOVE MUST BE COMPLETED BEFORE: * 1 Liter Water PO over 2 hours * 1 Liter IV Fluid Bolus (NS) then titrated to 75 ml\\hr for duration of the study participation * Strict I/O's * Vital signs

  • OtherHydrotherapy

    * Maternal BP (sitting) * Pulse Pressure * Pulse * Urine Specific Gravity BID * Fetal Heart Rate * Maternal Body Weight US Procedures * AC/EFW * Umbilical Artery Doppler Flow (Baseline, day 3, 7 {or Discharge}) o 1 hour +/- 30 minutes after submersion therapy * Uterine Artery Doppler Flow (Baseline, day 3, 7 {or Discharge}) o 1 hour +/- 30 minutes after submersion therapy * AFI (Baseline, day 3, 7 {or Discharge}) o 1 hour +/- 30 minutes after submersion therapy ALL ITEMS ABOVE MUST BE COMPLETED BEFORE: * 1 Liter Water PO over 2 hours * 1 Liter IV Fluid Bolus (NS) then titrated to 75 ml\\hr for duration of the study participation * Strict I/O's * Vital signs * HYDROTHERAPY TWICE DAILY FOR 3-7 DAYS o Blood pressure, pulse, pulse pressure, body weight, and fetal heart rate before and after submersion therapy

06

What researchers measure

Primary outcomes

  1. 1. Primary: Number of Participants With Reversal of Oligohydramnios Using AFV Measures

    Subjects amniotic fluid index via ultrasound on days 3, 5 and 7 of study participation.

    Time frame: days 3, and 7 or discharge

Secondary outcomes

  1. Metabolic Status

    Secondary: - Changes in maternal hemodynamic status by mobilizing extravascular fluid

    Time frame: admission, days 3, 5, 7/discharge and delivery

07

Results

Posted Mar 30, 2020

Participant flow

Recruitment began April 8, 2012 and ended April 2014. Recruitment took place at Banner Good Samaritan hospital based on Banner IRB approval.

Participant flow — Overall Study
MilestoneIV/Oral Hydration and BedrestHydrotherapy Group
Started22
Completed22
Not completed00

Outcome measures

Primary1. Primary: Number of Participants With Reversal of Oligohydramnios Using AFV Measures

Subjects amniotic fluid index via ultrasound on days 3, 5 and 7 of study participation.

Time frame:
days 3, and 7 or discharge

No measurements were reported for this outcome.

SecondaryMetabolic Status

Secondary: - Changes in maternal hemodynamic status by mobilizing extravascular fluid

Time frame:
admission, days 3, 5, 7/discharge and delivery

No measurements were reported for this outcome.

Adverse events

Collected over 2 years and 4 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
IV/Oral Hydration and Bedrest—0/2 (0%)0/2 (0%)
Hydrotherapy Group—0/2 (0%)0/2 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)IV/Oral Hydration and BedrestHydrotherapy GroupTotal
<=18 years000
Between 18 and 65 years224
>=65 years000
Age, Continuous
Age, Continuous(years)IV/Oral Hydration and BedrestHydrotherapy GroupTotal
Mean31.5 (29 to 34)23 (21 to 25)27.25 (21 to 34)
Sex: Female, Male
Sex: Female, Male(Participants)IV/Oral Hydration and BedrestHydrotherapy GroupTotal
Female224
Male000
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)IV/Oral Hydration and BedrestHydrotherapy GroupTotal
Hispanic or Latino101
Not Hispanic or Latino123
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)IV/Oral Hydration and BedrestHydrotherapy GroupTotal
American Indian or Alaska Native011
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American101
White112
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(Participants)IV/Oral Hydration and BedrestHydrotherapy GroupTotal
United States224
08

Study locations

1 site
  • Banner Good Samaritan Medical Center
    Phoenix, Arizona 85212, United States
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Timeline

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

The record gives a start of Aug 2012, a primary completion of Dec 2014 and a completion of Dec 2014. It does not say whether these dates are actual or estimated.

Results were first posted in Mar 2020, 5 years 3 months after primary completion.

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

Registered
Sep 6, 2012
First posted
Sep 11, 2012
Start
Aug 2012
Primary completionActual
Dec 2014
CompletionActual
Dec 2014
Results first posted
Mar 30, 2020
Last update
Mar 30, 2020
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 Mar 30, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01682928
Lead sponsor
Pediatrix
Collaborators
Banner Health
Responsible party
Sponsor
First posted
Sep 11, 2012
Start date
Aug 2012
Primary completion
Dec 2014
Completion
Dec 2014
Results posted
Mar 30, 2020
Last update
Mar 30, 2020

Study contacts

Thomas H Strong, MD
principal investigator · Obstetrix Medical Group

Oversight

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

Not currently enrolling

This study is terminated, as verified in Mar 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion