CClinicalTrials.gg
CompletedNCT02060864AN-PEP-03Updated Aug 28, 2015

Effect of AN-PEP Enzyme on Gluten Digestion in Gluten Sensitive Individuals

An interventional study of AN-PEP and Placebo in Non-coeliac Gluten Sensitivity, sponsored by DSM Food Specialties. Completed at 1 site in Sweden. Open to participants aged 18 Years to 69 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-08-28.

Sponsored by DSM Food Specialties · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
18
Allocation
Randomized
Ages
18 Years to 69 Years
Sex
All
01

Study summary

In this trial, the effect of a low and a high dose AN-PEP will be investigated in gluten sensitive individuals. Volunteers receive a breakfast with background (0.5 g) gluten. Capsules are taken in the morning within 5 min after start of breakfast. Gastrointestinal fluid will be sampled over 3 hours to measure gluten degradation. After 5 volunteers have completed 3 test days, a blind interim analysis is performed by a third party based on which it is decided whether to proceed with the low AN-PEP dose.

02

Conditions studied

  • Non-coeliac Gluten Sensitivity

Browse trials for

Keywords

  • enzyme
  • gluten
  • food intolerance
03

In context

Hypersensitivity

1,916 studies on the registry are indexed under Hypersensitivity; 265 are open to participants now.

This study's enrollment of 18 is below the median of 57 across 1,384 interventional studies indexed under Hypersensitivity.

Browse Hypersensitivity studies →

Lead sponsor

DSM Food Specialties is the lead sponsor of 3 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 to 69 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Male/female
  • Age ≥18 but \<70 yr
  • Females: Hormonal contraceptive treatment
  • Self-reported gluten-sensitive individuals fulfilling the Rome III criteria while consuming gluten
  • Subject has read and understood the information provided on the study and given written informed consent

Exclusion criteria

Exclusion Criteria:

  • Coeliac disease serology while consuming gluten (serological test for tissue transglutaminase IgA antibodies and total IgA antibodies)
  • Wheat allergy (serological test for wheat protein IgE antibodies)
  • Medication or medical condition that affects gastric emptying or secretion
  • Females: Pregnancy or breast-feeding
  • Inability to swallow the gastroduodenal feeding tube
  • Any medical condition that in the opinion of the investigators may interfere with the study and may jeopardise the health status of the participant
  • Any condition that in the opinion of the investigators may interfere with the study and may jeopardise the health status of the participant
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
18 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    2 Placebo pills

    Dietary Supplement: Placebo

  • Experimental
    AN-PEP 80.000 PPI

    1 pill AN-PEP 80.000 PPI and 1 pill Placebo.

    Dietary Supplement: AN-PEP

  • Experimental
    AN-PEP 160.000 PPI

    2 pills AN-PEP 80.000 PPI

    Dietary Supplement: AN-PEP

Interventions

  • Dietary supplementAN-PEP

    Two pills are consumed in the morning with a breakfast

    Also known as: Aspergillus Niger-Prolyl Endopeptidase

  • Dietary supplementPlacebo
06

What researchers measure

Primary outcomes

  1. Effect of 160.000 PPI AN-PEP on duodenal gluten

    Effect of AN-PEP (160.000 PPI) on gluten degradation based on amount of gluten detected in the duodenum compared with placebo over 180 min (Success is defined as at least 50% gluten degradation compared to placebo in an individual test, calculated using AUC)

    Time frame: 3-hour

Secondary outcomes

  1. Effect of 160.000 PPI AN-PEP on gastric gluten

    Effect of AN-PEP (160.000 PPI) on gluten degradation based on amount of gluten detected in the stomach compared with placebo over 180 min (Success is defined as at least 50% gluten degradation compared to placebo in an individual test, calculated using AUC)

    Time frame: 3-hour

  2. Effect of 80.000 PPI AN-PEP on duodenal gluten

    Effect of AN-PEP (80.000 PPI) on gluten degradation based on amount of gluten detected in the duodenum compared to placebo over 180 min (Success is defined as at least 50% gluten degradation compared to placebo in an individual test, calculated using AUC)

    Time frame: 3-hour

  3. Effect of 80.000 PPI AN-PEP on gastric gluten AUC

    Effect of AN-PEP (80.000 PPI) on gluten degradation based on amount of gluten detected in the stomach compared to placebo over 180 min (Success is defined as at least 50% gluten degradation compared to placebo in an individual test, calculated using AUC)

    Time frame: 3-hour

  4. Effect of 160.000 PPI AN-PEP on percentage duodenal gluten reduction

    The average reduction in gluten concentration (as a continuous measure) following administration of AN-PEP (160.000 PPI) on gluten degradation (defined as the percentage of gluten degraded by 180 minutes) based on gluten detection in the duodenum compared with placebo over 180 min using AUC.

    Time frame: 3-hour

  5. Effect of 160.000 PPI AN-PEP on percentage gastric gluten reduction

    The average reduction in gluten concentration (as a continuous measure) following administration of AN-PEP (160.000 PPI) on gluten degradation (defined as the percentage of gluten degraded by 180 minutes) based on gluten detection in the stomach compared with placebo over 180 min using AUC.

    Time frame: 3-hour

  6. Effect of 80.000 PPI AN-PEP on percentage duodenal gluten reduction

    The average reduction in gluten concentration (as a continuous measure) following administration of AN-PEP (80.000 PPI) on gluten degradation (defined as the percentage of gluten degraded by 180 minutes) based on gluten detection in the duodenum compared with placebo over 180 min using AUC.

    Time frame: 3-hour

  7. Effect of 80.000 PPI AN-PEP on percentage gastric gluten reduction

    The average reduction in gluten concentration (as a continuous measure) following administration of AN-PEP (low and high dose) on gluten degradation (defined as the percentage of gluten degraded by 180 minutes) based on gluten detection in the stomach compared with placebo over 180 min using AUC.

    Time frame: 3-hour

07

Study locations

1 site
  • Örebro University
    Örebro, 701 82, Sweden
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 28, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02060864
Lead sponsor
DSM Food Specialties
Responsible party
Robert Brummer (Prof, Örebro University, Sweden) — Principal investigator
First posted
Feb 12, 2014
Start date
Apr 2014
Primary completion
Aug 2015
Completion
Aug 2015
Last update
Aug 28, 2015

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2015. 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