ClinicalTrials.gg
TerminatedNCT04604275Updated Oct 1, 2025Results posted

Functional Sucrase Deficiency in Short Bowel Syndrome Patients With Intestinal Failure

A Phase 2 interventional study of Sucrase and Placebo in Short Gut Syndrome, sponsored by University of Miami. Terminated at 2 sites in United States. Per ClinicalTrials.gov, last updated 2025-10-01.

Sponsored by University of Miami · Phase 2, Interventional, and Treatment

Why this study was terminated
Inability to recruit further patients for study
Phase
Phase 2
Study type
Interventional
Enrollment
3
Allocation
Randomized
Sex
All
01

Study summary

Short gut syndrome with intestinal failure patients may have decreased production of disaccharidases, like sucrase, an enzyme responsible for digesting sugar in foods. This can happen due to loss of bowel length from surgery or from loss of cellular function in the intestines due to use of parenteral nutrition intravenously. Therefore, patients with these conditions may not be able to digest sucrose (sugar) fully. Patients might experience abdominal distension/pain, vomiting and diarrhea when sugar is taken in orally or through the g-tube, which can limit patients' ability to increase oral or g-tube feeds in short gut syndrome patients with intestinal failure.

In patients with short gut syndrome and intestinal failure, the administration of exogenous sucrase (enzyme) may improve sucrose (sugar) digestion and thus the ability to tolerate more oral or g-tube feeds.

02

Conditions studied

  • Short Gut Syndrome

Keywords

  • Intestinal failure
03

In context

Short Bowel Syndrome

159 studies on the registry are indexed under Short Bowel Syndrome; 24 are open to participants now.

This study's enrollment of 3 is below the median of 21 across 108 interventional studies indexed under Short Bowel Syndrome.

Browse Short Bowel Syndrome studies →

Lead sponsor

University of Miami is the lead sponsor of 840 studies on the registry; 164 are open to participants now.

Of its 115 completed or terminated interventional studies of FDA-regulated products, 97 (84%) have results posted.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
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

  • Short bowel syndrome, of all ages, with dependence on parental support to provide at least 50% of fluid or caloric needs.
  • Must be on diet containing sucrose.
  • Must be willing and able to sign
  • Adult and Pediatric patients (all ages)

Exclusion criteria

Exclusion Criteria:

  • Current IV antibiotic administration for confirmed bout of bacteremia.
  • No enteral nutrition
  • Any condition, disease, illness, or circumstance that in the investigator's opinion puts the subject at any undue risk, prevents completion of the study, or interferes with analysis of the study results
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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
3 participants (actual)

Study arms

  • Experimental
    Sucrase intervention followed by placebo

    Participants in this arm will receive sucrase for 4 weeks followed by wash out of 1 week with no drug administered then 4 weeks of placebo.

    Drug: Sucrase · Other: Placebo

  • Experimental
    Placebo followed by sucrase intervention

    Participants in this arm will receive placebo for 4 weeks followed by wash out of 1 week with no drug administered then 4 weeks of sucrase.

    Drug: Sucrase · Other: Placebo

Interventions

  • DrugSucrase

    1 mL (8,500 I.U.) (one full measuring scoop or 28 drops) per meal or snack for patients up to 15 kg in body weight. 2 mL (17,000 I.U.) for patients over 15kg in body weight. Dosage is 1 or 2 mL (8,500 to 17,000 I.U.) taken orally or by g-tube with each meal or snack diluted in water, milk, or infant formula.

  • OtherPlacebo

    1 mL of placebo per meal or snack for patients up to 15 kg in body weight. 2 mL of placebo per meal of snack for patients above 15kg in body weight. Dosage is 1 or 2 mL of placebo taken orally or by g-tube with each meal or snack diluted in water, milk, or infant formula.

06

What researchers measure

Primary outcomes

  1. Change in Carbohydrate Malabsorption

    Degree of carbohydrate malabsorption will be assessed by decrease in number of stools per day.

    Time frame: baseline, 9 weeks

  2. Change in Carbohydrate Malabsorption as Measured by Patient Symptom Survey

    Degree of carbohydrate malabsorption will be assessed by change in patient symptomatology by change in score on patient symptom survey. The survey has range from 0-52 with higher score being worse symptoms and lower being better.

    Time frame: baseline, 9 weeks

  3. Change in Carbohydrate Malabsorption as Measured by Growth Velocity

    Carbohydrate malabsorption will be measured by increase in growth velocity in kg/week

    Time frame: baseline, 9 weeks

  4. Change in Carbohydrate Malabsorption as Measured by Enteral Nutrition Tolerance

    Carbohydrate malabsorption will be measured by ability to advance enteral nutrition in ml/day

    Time frame: baseline, 9 weeks

Secondary outcomes

  1. Change in Digestion

    Change in digestion will be measured by change in abdominal distension/girth measured in cm

    Time frame: baseline, 9 weeks

  2. Change in Digestion as Measured by Amount of Emesis

    Change in digestion will be assessed by number of emesis per day

    Time frame: baseline, 9 weeks

  3. Change in Digestion as Measured by Stool Consistency

    Change in digestion will be assessed as a change in stool consistency from liquid (7) to solid(1) using Bristol stool chart

    Time frame: baseline, 9 weeks

07

Results

Posted Oct 1, 2025
Limitations and caveats
The study was terminated due to low accrual. The target population consisted of individuals with a rare condition that is not commonly found in the general population, which significantly limited recruitment feasibility. Despite outreach efforts and engagement with specialized clinical sites, the rarity of the condition and strict eligibility criteria resulted in insufficient enrollment.

Participant flow

Intervention 1
Participant flow — Intervention 1
MilestoneSucrase Intervention Followed by PlaceboPlacebo Followed by Sucrase Intervention
Started21
Completed21
Not completed00
Washout-1 Week
Participant flow — Washout-1 Week
MilestoneSucrase Intervention Followed by PlaceboPlacebo Followed by Sucrase Intervention
Started21
Completed11
Not completed10
Withdrew: Withdrawal by subject10
Intervention 2
Participant flow — Intervention 2
MilestoneSucrase Intervention Followed by PlaceboPlacebo Followed by Sucrase Intervention
Started11
Completed11
Not completed00

Outcome measures

PrimaryChange in Carbohydrate Malabsorption

Degree of carbohydrate malabsorption will be assessed by decrease in number of stools per day.

Time frame:
baseline, 9 weeks

No measurements were reported for this outcome.

PrimaryChange in Carbohydrate Malabsorption as Measured by Patient Symptom Survey

Degree of carbohydrate malabsorption will be assessed by change in patient symptomatology by change in score on patient symptom survey. The survey has range from 0-52 with higher score being worse symptoms and lower being better.

Time frame:
baseline, 9 weeks

No measurements were reported for this outcome.

PrimaryChange in Carbohydrate Malabsorption as Measured by Growth Velocity

Carbohydrate malabsorption will be measured by increase in growth velocity in kg/week

Time frame:
baseline, 9 weeks

No measurements were reported for this outcome.

PrimaryChange in Carbohydrate Malabsorption as Measured by Enteral Nutrition Tolerance

Carbohydrate malabsorption will be measured by ability to advance enteral nutrition in ml/day

Time frame:
baseline, 9 weeks

No measurements were reported for this outcome.

SecondaryChange in Digestion

Change in digestion will be measured by change in abdominal distension/girth measured in cm

Time frame:
baseline, 9 weeks

No measurements were reported for this outcome.

SecondaryChange in Digestion as Measured by Amount of Emesis

Change in digestion will be assessed by number of emesis per day

Time frame:
baseline, 9 weeks

No measurements were reported for this outcome.

SecondaryChange in Digestion as Measured by Stool Consistency

Change in digestion will be assessed as a change in stool consistency from liquid (7) to solid(1) using Bristol stool chart

Time frame:
baseline, 9 weeks

No measurements were reported for this outcome.

Adverse events

Collected over 9 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Sucrase Intervention Followed by Placebo0/2 (0%)0/2 (0%)0/2 (0%)
Placebo Followed by Sucrase Intervention0/1 (0%)0/1 (0%)0/1 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Sucrase Intervention Followed by PlaceboPlacebo Followed by Sucrase InterventionTotal
<=18 years213
Between 18 and 65 years000
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Sucrase Intervention Followed by PlaceboPlacebo Followed by Sucrase InterventionTotal
Female112
Male101
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Sucrase Intervention Followed by PlaceboPlacebo Followed by Sucrase InterventionTotal
Hispanic or Latino202
Not Hispanic or Latino011
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Sucrase Intervention Followed by PlaceboPlacebo Followed by Sucrase InterventionTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American011
White202
More than one race000
Unknown or Not Reported000
08

Study locations

2 sites
  • Jackson Memorial Hospital
    Miami, Florida 33136, United States
  • University of Miami
    Miami, Florida 33136, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2022 to primary completion in Sep 2024, 31 months.

Results were first posted in Oct 2025, 1 year 1 month after primary completion.

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

Registered
Oct 22, 2020
First posted
Oct 27, 2020
StartActual
Jan 31, 2022
Primary completionActual
Sep 1, 2024
CompletionActual
Sep 1, 2024
Results first posted
Oct 1, 2025
Last update
Oct 1, 2025
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 Oct 1, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04604275
Collaborators
QOL Medical, LLC
Responsible party
Sponsor
First posted
Oct 27, 2020
Start date
Jan 31, 2022
Primary completion
Sep 1, 2024
Completion
Sep 1, 2024
Results posted
Oct 1, 2025
Last update
Oct 1, 2025

Study contacts

Amanda Fifi, MD
principal investigator · University of Miami

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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