Low Iron StoresNCT00283491
The Effect of Lactobacillus Cultures on Iron Bioavailability.
A study testing Active Lactobacillus plantarum 299v and Inactive Lactobacillus plantarum 299v in people with Low Iron Stores, run by University of Copenhagen at 1 site in Denmark.
Trial summary
The purpose of this study is to determine the effect of a lactic acid fermented oat gruel on iron absorption in the upper and lower part of the intestine, respectively. Read more about this study
- Who is it for?
- Ages 18 to 40 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Low Iron Stores
- What is being tested?
- Active Lactobacillus plantarum 299v and Inactive Lactobacillus plantarum 299v
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 18 participants
- Where
- 1 siteDenmark
- Study dates
- Oct 2005to Nov 2005
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 40 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- serum ferritin in the range 12-30 µg/L
- hemoglobin > 110 g/L
Who cannot join
- pregnant or lactating
- smoker
- intake of vitamin-, mineral- or other dietary supplements during the study and 2 mo before start
- sports practicing >10h/week
- blood donation during the study and 2 mo before start
- medication
- participation in other isotope studies
Trial locations and contacts
1 site in 1 country.
Denmark1 site
Department of Human Nutrition, The Royal Veterinary and Agricultural University
Frederiksberg C, 1958
About this study
Official title: The Effect of a Lactic Acid Fermented Oat Gruel on Iron Absorption in the Proximal and Distal Small Intestine From a Phytate Rich Meal in Healthy Women of Childbearing Age.
The purpose of this study is to determine the effect of a lactic acid fermented oat gruel on iron absorption in the upper and lower part of the intestine, respectively.
Read the detailed description
Iron deficiency and low iron stores are prevalent in infants, adolescents, and women of childbearing age in both Western and developing countries. One cause of iron deficiency is the low iron bioavailability from foods, which is partly due to inhibiting factors in the diet, such as phytate and phenolic compounds. A number of single meal studies with lactic acid fermented vegetables and cereals have shown a significant increase in iron absorption in humans. This is believed to be caused mainly by the lactic acid produced during the fermentation process, which conteracts the inhibiting effect of phytate.
A recent study of ours indicate that the increased nonheme iron absorption from a low iron bioavailability meal was due not only to an effect of the lactic acid produced, but also a specific effect of the lactic acid bacteria. As lactic acid bacteria colonizes the entire intestine but mainly the colon it is of interest to determine whether these bacteria can increase iron absorption from the distal part of the intestine since iron absorption normally is believed to be absorbed from the duodenum and most proximal small intestine.
The purpose of this study is therefore to determine the the effect of Lactobacillus plantarum 299v in a lactic acid fermented oat gruel on iron absorption in the proximal and distal small intestine, respectively, in a cross-over design with 18 healthy women of childbearing age, served both fermented oat gruel and pasteurized, fermented oat gruel.
- Conditions
- Low Iron Stores
- Being tested
- Active Lactobacillus plantarum 299v, Inactive Lactobacillus plantarum 299v
- Keywords
- Iron absorption, Organic acids, Lactobacillus, Probiotic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Active Lactobacillus plantarum 299vBehavioural
10^11 cfu/meal in 2 meals on 2 consecutive days
Inactive Lactobacillus plantarum 299vDietary supplement
Inactive form of the active treatment but with the fermentation products in the same concentration
| Study group | Role | What they receive |
|---|---|---|
| A | Active comparator | Not described Receives: Behavioral: Active Lactobacillus plantarum 299v |
| B | Placebo comparator | Not described Receives: Dietary Supplement: Inactive Lactobacillus plantarum 299v |
What is being measured
The primary outcome is the main question the study is designed to answer.
Concentrations of 55-Fe and 59-Fe in blood 18 days after intake in first and second period, respectively (i.e. november and december 2005).
Measured: 2 mo
Secondary outcomes (1)
Measurement of serum-ferritin and transferrin receptor in the blood samples before and after each period.
Measured: 2 mo
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Jan 2006 (estimated)
- Study startOct 2005
- Study completionNov 2005
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Low Iron StoresStudies of the same condition, open and under way.
- More trials run by University of CopenhagenThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 18 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Copenhagen
- Sponsor type
- University, hospital or other
- Collaborators
- The Ministry of Science, Technology and Innovation, Denmark
- Investigators
- Klaus Bukhave, MScD, Study chair, Department of Human Nutrition, The Royal Veterinary and Agricultural University, Rolighedsvej 30, DK-1958 Frederiksberg C
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00283491
- Sponsor's protocol ID
- KF 01-219/03
- Other IDs
- IHE-KVL-M183
- Status last verified
- Oct 2005
- First submitted
- 27 Jan 2006
- Last updated
- 21 Jan 2009
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 21 Jan 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of a Lactic Acid Fermented Oat Gruel on Iron Absorption in the Proximal and Distal Small Intestine From a Phytate Rich Meal in Healthy Women of Childbearing Age.
- ClinicalTrials.gov ID
- NCT00283491
- Acronym / sponsor ID
- KF 01-219/03
- Conditions
- Low Iron Stores
- Keywords
- Iron absorption, Organic acids, Lactobacillus, Probiotic
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 18 participants (actual)
- Lead sponsor
- University of CopenhagenUniversity, hospital or other
- Collaborators
- The Ministry of Science, Technology and Innovation, Denmark
- Study start
- Oct 2005
- Study completion
- Nov 2005 (actual)
- First posted
- 30 Jan 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to determine the effect of a lactic acid fermented oat gruel on iron absorption in the upper and lower part of the intestine, respectively.
Detailed description
Iron deficiency and low iron stores are prevalent in infants, adolescents, and women of childbearing age in both Western and developing countries. One cause of iron deficiency is the low iron bioavailability from foods, which is partly due to inhibiting factors in the diet, such as phytate and phenolic compounds. A number of single meal studies with lactic acid fermented vegetables and cereals have shown a significant increase in iron absorption in humans. This is believed to be caused mainly by the lactic acid produced during the fermentation process, which conteracts the inhibiting effect of phytate.
A recent study of ours indicate that the increased nonheme iron absorption from a low iron bioavailability meal was due not only to an effect of the lactic acid produced, but also a specific effect of the lactic acid bacteria. As lactic acid bacteria colonizes the entire intestine but mainly the colon it is of interest to determine whether these bacteria can increase iron absorption from the distal part of the intestine since iron absorption normally is believed to be absorbed from the duodenum and most proximal small intestine.
The purpose of this study is therefore to determine the the effect of Lactobacillus plantarum 299v in a lactic acid fermented oat gruel on iron absorption in the proximal and distal small intestine, respectively, in a cross-over design with 18 healthy women of childbearing age, served both fermented oat gruel and pasteurized, fermented oat gruel.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| A | Active comparator | Behavioral: Active Lactobacillus plantarum 299v |
| B | Placebo comparator | Dietary Supplement: Inactive Lactobacillus plantarum 299v |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- serum ferritin in the range 12-30 µg/L
- hemoglobin > 110 g/L
Key exclusion criteria (7 listed)
- pregnant or lactating
- smoker
- intake of vitamin-, mineral- or other dietary supplements during the study and 2 mo before start
- sports practicing >10h/week
- blood donation during the study and 2 mo before start
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Active Lactobacillus plantarum 299v10^11 cfu/meal in 2 meals on 2 consecutive days | Behavioural | A |
| Inactive Lactobacillus plantarum 299vInactive form of the active treatment but with the fermentation products in the same concentration | Dietary supplement | B |
Primary outcome
Concentrations of 55-Fe and 59-Fe in blood 18 days after intake in first and second period, respectively (i.e. november and december 2005).
Time frame: 2 mo
1 secondary outcome
Measurement of serum-ferritin and transferrin receptor in the blood samples before and after each period.
Time frame: 2 mo
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Jan 2009.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Klaus Bukhave, MScD study chair
Department of Human Nutrition, The Royal Veterinary and Agricultural University, Rolighedsvej 30, DK-1958 Frederiksberg C
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Active Lactobacillus plantarum 299v and Inactive Lactobacillus plantarum 299v in people with Low Iron Stores, run by University of Copenhagen at 1 site in Denmark.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 21 Jan 2009. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Concentrations of 55-Fe and 59-Fe in blood 18 days after intake in first and second period, respectively (i.e. november and december 2005). (time frame: 2 mo). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Jan 2009; AzTrials last refreshed its copy on 7 Nov 2026.