Aquamin® as an Adjuvant Intervention for Ulcerative Colitis

August 21, 2026 updated by: Muhammad N Aslam, MD

Aquamin®, a Multi-mineral Natural Product From Red Marine Algae, as an Adjuvant Intervention for Mild Ulcerative Colitis and Ulcerative Colitis in Remission

The purpose of this study is to determine if Aquamin® works as a potential treatment to improve symptoms and if it will induce remission in patients with mild Ulcerative Colitis and extend remission in Ulcerative Colitis in remission.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
40

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
        • The University of Michigan

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Ulcerative colitis with confirmed diagnosis by histology and endoscopy AND in stable remission for 3 months or more without therapy or with maintenance therapy (except steroids and antibiotics for 3 months) OR having a mild disease.
  • A negative pregnancy test

Exclusion Criteria:

  • No history or diagnosis of any of the following conditions: Crohn's disease, bleeding disorders, gastrointestinal or colonic malignancy, Kidney disease, including kidney "stones" or hypercalcemia, Coagulopathy/hereditary hemorrhagic disorders/ or receiving therapeutic doses of Coumadin or heparin.
  • Ingested certain medications (Calcium, Vitamin D, fiber supplements and Non-steroidal anti-inflammatory drugs - NSAIDs) within 30 days of study start.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Aquamin®
To be taken for 180 days
Drug: Aquamin®
4 capsules per day; 2 to be taken in the morning and 2 in the evening (containing approximately 800 mg calcium/day)
Other Names:
  • Nutritional
Placebo Comparator: Placebo first then Aquamin®
Placebo: To be taken for the first 90 days. Aquamin®: To be taken for the last 90 days (after crossover)
Drug: Aquamin®
4 capsules per day; 2 to be taken in the morning and 2 in the evening (containing approximately 800 mg calcium/day)
Other Names:
  • Nutritional
Drug: Placebo first then Aquamin®
4 capsules per day; 2 to be taken in the morning and 2 in the evening
Other Names:
  • Maltodextrin

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in ulcerative colitis clinical features / presentation as measured by the Inflammatory Bowel Disease Questionnaire (IBDQ) score
Time Frame: Up to day 180
This is a self-administered questionnaire. There are 32 quality of life questions related to bowel function. Each response corresponds to a letter 'a' through 'g'. Whereas 'a' indicates high frequency and 'g' indicates minimal frequency. The total IBDQ score ranges between 32 and 224, with higher scores indicating better quality of life.
Up to day 180
Change in clinical assessment /gastroenterologist's endoscopic findings based on Ulcerative Colitis Disease Activity Index (UCDAI)/Mayo Scoring
Time Frame: Up to day 180
UCDAI/Mayo Scoring consists of 4 subscales: stool frequency, rectal bleeding, findings on endoscopy and physician's global assessment. Each subscale is scored on a scale of 0 to 3, where 0= normal condition and 3 = severe disease condition. The total Mayo score ranges from 0 to 12, with higher scores indicating more severe disease.
Up to day 180
Change in Cytokine levels of the colon tissue as measured by Interleukin 8 (IL-8) levels assessed by enzyme-linked immunosorbent assay (ELISA)
Time Frame: Up to day 180
Interleukin 8 levels are measured in picograms per milliliter (pg/mL)
Up to day 180
Change in serum C-reactive protein (CRP) levels as measured in a blood sample.
Time Frame: Up to day 180
Serum C-reactive protein ([CRP levels)] will be reported in milligram per deciliter (mg/dL)
Up to day 180
Change in fecal calprotectin levels measured in a stool sample
Time Frame: Up to day 180
Fecal calprotectin will be reported in microgram per gram (µg/g)
Up to day 180

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes in serum liver function tests
Time Frame: Up to day 180
Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT), and Alkaline Phosphatase (ALKP) assessment
Up to day 180

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Muhammad N Aslam, MD

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Muhammad Nadeem Aslam, University of Michigan

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 8, 2019

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 8, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 8, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 11, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 25, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 21, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HUM00156676

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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