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Solid TumorEarly Phase 1NCT04552418

Intestinal Microbiome Modification With Resistant Starch in Patients Treated With Dual Immune Checkpoint Inhibitors

A Early Phase 1 study testing Potato starch in people with Solid Tumor, run by University of Michigan Rogel Cancer Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a pilot study designed to assess the safety and feasibility of administering a dietary supplement to patients undergoing cancer treatment with a dual immune checkpoint inhibitors (ICIs) for solid cancer. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Solid Tumor
What is being tested?
Potato starch
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited States
Study dates
2 Jun 2021to 24 Jan 2023
Phase
Early Phase 1
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients starting dual immune checkpoint inhibitor therapy (ipilimumab and nivolumab in any dose combination) for solid cancer treatment per FDA approved indications.
  • Ability to understand and the willingness to sign a written informed consent.

Who cannot join

  • Patients with a history of colectomy and/or gastric bypass.
  • Patients with a known diagnosis of inflammatory bowel disease or irritable bowel syndrome.
  • Patients with active Clostridium difficile infection. Active infection is defined as a stool sample positive for Clostridium difficile toxin by EIA and either symptoms (frequent loose stools) OR imaging findings consistent with toxic megacolon.
  • Inability to take oral supplements
  • Patients with existing gastrointestinal symptoms including abdominal pain, diarrhea (watery stool), nausea and/or actively requiring regular anti-emetics.
  • Patients with symptomatic bowel metastasis including pain, severe constipation, or gastrointestinal bleeding.
  • Receiving antibiotic within 14 days of ICI therapy initiation.
  • Any physical or psychological condition that, in the opinion of the investigator, would pose unacceptable risk to the patient or raise concern that the patient would not comply with protocol procedures.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Michigan Rogel Cancer Center

    Ann Arbor, Michigan, 48109

Other trials in United States

About this study

Official title: Pilot Study of Intestinal Microbiome Modification With Resistant Starch in Patients Treated With Dual Immune Checkpoint Inhibitors

This is a pilot study designed to assess the safety and feasibility of administering a dietary supplement to patients undergoing cancer treatment with a dual immune checkpoint inhibitors (ICIs) for solid cancer.

Conditions
Solid Tumor
Being tested
Potato starch
Keywords
Immune checkpoint inhibitor

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Potato starchDrug

    Also called Resistant starch

    Starting 5-7 days before treatment with dual-ICI, participant will consume 20g of potato starch (Bob's Red Mill®) once a day for 3 days, then increase to 20g twice a day, continuing throughout dual-ICI treatment (total duration approximately 13 weeks).

Study groups in NCT04552418
Study groupRoleWhat they receive
Potato-based dietary starch supplementExperimentalPatients undergoing cancer treatment with dual immune checkpoint inhibitors (ICI) will receive potato-based dietary starch supplements.
Receives: Drug: Potato starch

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of patients able to adhere to resistant starch (RS) supplement schedule

    Feasibility will be determined by calculating the number of patients who have taken 70% or more of scheduled dose of dietary intervention. Patients will be asked to record doses of starch taken and will be provided a table in which doses can be checked off.

    Measured: Approximately 13 weeks

  2. Frequency of serious adverse events (SAEs) attributable to ICI therapy

    Adverse events will be assessed using the NCI Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. The frequency of known serious effects of ICIs will be compared to historical rates.

    Measured: Up to 6 months (3 months after RS supplement discontinuation)

  3. Occurrence of unanticipated serious adverse events (SAEs)

    Adverse events will be assessed using the NCI CTCAE, version 5.0.

    Measured: Approximately 13 weeks

Secondary outcomes (3)
  1. Incidence and severity of immunotherapy-induced diarrhea/colitis

    Graded according to the NCI Common Terminology Criteria for Adverse Events (CTCAE), version 5.0.

    Measured: Up to 6 months (3 months after RS supplement discontinuation)

  2. Change in luminal microbiome composition

    Weekly stool samples will be compared to the baseline sample (prior to starting starch-based dietary supplement). Stool samples will be analyzed for microbial nucleic acids to characterize the components of the stool microbiome.

    Measured: Up to 6 months (3 months after RS supplement discontinuation)

  3. Change in luminal microbiome metabolite

    Weekly stool samples will be compared to the baseline sample (prior to starting starch-based dietary supplement). Key metabolic byproducts will be identified in stool specimens using liquid chromatography and mass spectrometry.

    Measured: Up to 6 months (3 months after RS supplement discontinuation)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Sep 2020
  2. Study start2 Jun 2021
  3. Primary completion24 Jan 2023
  4. Study completion24 Jan 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04552418
Sponsor's protocol ID
UMCC 2020.010
Other IDs
HUM00178229
Status last verified
Feb 2024
First submitted
11 Sep 2020
Last updated
28 Feb 2024
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Potato starch in people with Solid Tumor, run by University of Michigan Rogel Cancer Center at 1 site in United States.

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 8 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 28 Feb 2024. 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 United States. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Number of patients able to adhere to resistant starch (RS) supplement schedule (time frame: Approximately 13 weeks). The study lists 3 primary outcomes in all. 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 28 Feb 2024.

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