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Healthy, no Evidence of DiseasePhase 1NCT00784394

Diindolylmethane in Preventing Cancer in Healthy Volunteers

A Phase 1 study testing diindolylmethane, pharmacological study and laboratory biomarker analysis in people with Healthy, no Evidence of Disease, run by National Cancer Institute (NCI) 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 phase I clinical trial studies the side effects and best dose of diindolylmethane in preventing cancer in healthy volunteers. Diindolylmethane is formed in the stomachs of people who eat a chemical that is normally found in vegetables, including cabbage, broccoli, Brussels sprouts, cauliflower, and watercress. Read more about this study

Who is it for?
Ages 18 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Healthy, no Evidence of Disease
What is being tested?
diindolylmethane, pharmacological study and laboratory biomarker analysis
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
1 siteUnited States
Study dates
Apr 2004to Oct 2009
Phase
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 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Non-smokers and non-users of abuse drugs as confirmed by urine cotinine (Accutest NicoMeter Urine Professional strip or equivalent test) and drug screen at visit 1
  • Free of acute, unstable, chronic or recurring medical conditions based on history, physical examination, laboratory tests; the laboratory tests to be performed will be: blood serum chemistry screen to include comprehensive metabolic panel (glucose, creatinine, urea nitrogen [blood urea nitrogen (BUN)], sodium, potassium, chloride, calcium, total bilirubin, protein, albumin, globulin, cholesterol and the enzymes alkaline phosphatase, aspartate aminotransferase [AST], and alanine aminotransferase [ALT]) and lipid panel (total, low density lipoprotein [LDL] and high density lipoprotein [HDL] cholesterol and triglycerides); complete blood count including differential and platelet count; prothrombin time; and routine urinalysis; values for laboratory tests must be within the ranges below grade 2 of Common Toxicity Criteria (CTC) and/or as specified below:
  • Hemoglobin > 10 g/dL
  • Absolute granulocyte count > 1500/ìL
  • Creatinine < 2.0 mg/dl
  • Albumin > 3.0 g/dl
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  • Bilirubin < 1.8 mg/dl
  • AST < 110 U/l
  • ALT < 110 U/l
  • Alkaline phosphatase < 300 U/l
  • Subjects must weigh +/- 20% of ideal body weight by the Metropolitan Life tables
  • Men or women who are strict vegetarians or who eat more than 3 medium servings (1/2 cup each) of cruciferous vegetables per week will be excluded; those who stop ingesting cruciferous vegetables >= 14 days and alcohol >= 7 days before starting DIM and agree to refrain from taking them for the duration of the study will not be excluded; cruciferous vegetables include broccoli, cabbage (including coleslaw), cauliflower, bok-choy, Brussels sprouts, collards, kale, kohlrabi, mustard greens, rutabaga, turnip, and watercress; participants will be asked to complete a brief diet questionnaire listing these vegetables to assess these criteria; caffeine- and grapefruit-containing foods and beverages are to be avoided for at least 48 hours before visit 2 (DIM dosing)

Who cannot join

  • Subjects with serious drug allergies or other serious intolerance or allergies will be excluded; those with mild seasonal allergies will be accepted
  • Subjects with chronic headaches, dysphoria, fatigue, dizziness, blurred vision, insomnia, rhinorrhea, nausea, vomiting, abdominal pain, diarrhea, constipation, or similar conditions
  • Subjects with a serious acute or chronic illness (diabetes, arthritis, asthma, etc.) or requiring chronic drug therapy, who continuously take supplements or have taken an investigational drug within the past three months
  • Subjects who have evidence of an active malignancy or have received chemotherapy, and/or antiestrogen therapy
  • Subjects who have a life expectancy of < 12 months
  • Subjects who have regularly taken over the past 21 days any concomitant medications, herbal products, dietary supplements or vitamins; women taking oral contraceptives will be accepted; women who are pregnant (positive urine human chorionic gonadotropin [hCG] at visit 2) or lactating will be excluded

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Kansas Medical Center

    Kansas City, Kansas, 66160

Other trials in United States

About this study

Official title: Phase I Ascending Single Dose Pharmacokinetics (PK) and Safety Study of 3,3' Di-indolylmethane (DIM)

This phase I clinical trial studies the side effects and best dose of diindolylmethane in preventing cancer in healthy volunteers. Diindolylmethane is formed in the stomachs of people who eat a chemical that is normally found in vegetables, including cabbage, broccoli, Brussels sprouts, cauliflower, and watercress. Diindolylmethane may prevent the development of cancer.

Read the detailed description

PRIMARY OBJECTIVES:

  1. To determine single oral doses of 3,3' di-indolylmethane (DIM) (diindolylmethane) that are safe and well- tolerated.

II. To determine the pharmacokinetics of these single oral doses of DIM.

OUTLINE: This is a dose-escalation study. Participants are randomized to 1 of 2 treatment arms.

ARM I: Participants receive a single dose of diindolylmethane orally (PO) on day 1.

ARM II: Participants receive a single dose of placebo orally (PO) on day 1.

After completion of study treatment, participants are followed up on days 2, 3, and 6.

Being tested
diindolylmethane, placebo, pharmacological study, laboratory biomarker analysis, quality-of-life assessment

What participants receive

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

  • diindolylmethaneDrug

    Also called DIM

    Given PO

  • placeboOther

    Also called PLCB

    Given PO

  • pharmacological studyOther

    Also called pharmacological studies

    Correlative studies

  • laboratory biomarker analysisOther

    Correlative studies

  • quality-of-life assessmentOther

    Also called quality of life assessment

    Ancillary studies

Study groups in NCT00784394
Study groupRoleWhat they receive
Arm I (diindolylmethane)ExperimentalParticipants receive a single dose of diindolylmethane PO on day 1.
Receives: Drug: diindolylmethane; Other: pharmacological study; Other: laboratory biomarker analysis; Other: quality-of-life assessment
Arm II (placebo)Placebo comparatorParticipants receive a single dose of placebo orally (PO) on day 1.
Receives: Other: placebo; Other: pharmacological study; Other: laboratory biomarker analysis; Other: quality-of-life assessment

What is being measured

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

  1. Maximum tolerated dose (MTD), defined as the highest dose at which no grade 2 or higher toxicities are seen

    Frequencies and percents will be used to summarize the toxicities seen at each dose level and overall. Descriptive statistics will be calculated on all variables of interest: frequencies and percentages will be used to summarize categorical variables and medians, and ranges will summarize quantitative variables.

    Measured: Up to day 6

Secondary outcomes (1)
  1. Pharmacokinetics of diindolylmethane

    Pharmacokinetic parameters such as half-life, maximum concentration (Cmax), time of Cmax (Tmax), and area under the concentration-time curve (AUC) will be calculated for all subjects who complete the study. It is anticipated that a one-compartment elimination model will fit the data. These parameters will be summarized at each dose and overall with median and ranges.

    Measured: Baseline and at 0.5, 1.0, 1.5, 2, 3, 4, 6, 8, 12, and 24 hours after administration

Timeline

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

  1. First posted4 Nov 2008 (estimated)
  2. Study startApr 2004
  3. Primary completionOct 2009
  4. Study completionOct 2009

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
Phase 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00784394
Sponsor's protocol ID
NCI-2014-00523
Other IDs
NCI-2014-00523, NO1-CN-35008-38, CDR0000617334, KUMC-HSC-9139, N01-CN-35008-1, N01CN35008
Status last verified
Dec 2016
First submitted
1 Nov 2008
Last updated
29 Dec 2016
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing diindolylmethane, pharmacological study and laboratory biomarker analysis in people with Healthy, no Evidence of Disease, run by National Cancer Institute (NCI) 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 12 inclusion and 6 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 29 Dec 2016. 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. 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Maximum tolerated dose (MTD), defined as the highest dose at which no grade 2 or higher toxicities are seen (time frame: Up to day 6). 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 29 Dec 2016.

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