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DIM as a Treatment for Thyroid Disease

Diindolymethane: Anti-proliferation Agent in Thyroid Disease-Non-surgical Protocol

Status
Terminated
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01846364
Enrollment
7
Registered
2013-05-03
Start date
2006-11-30
Completion date
2011-09-30
Last updated
2013-05-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Proliferative Thyroid Disease

Keywords

Thyroid, DIM

Brief summary

Diindolylmethane (DIM), a dietary supplement, found naturally in cruciferous vegetables (such as cabbage, cauliflower, broccoli, & Brussels sprouts) has been studied extensively in recent years for its anti-cancer effects. DIM has been shown to exert control over cancer cell growth in breast, uterine, cervical, ovarian, and colon cancer. To date no human study has been published regarding the bioavailability of DIM in thyroid tissue or its effects in proliferative thyroid disease. Our previous study attempted to elucidate DIM's promotion of anti-proliferative estrogen metabolites in proliferative thyroid disease and ascertain its uptake in thyroid tissue. DIM has been shown to concentrate in the thyroid gland. Furthermore, thyroid volumes have been seen to decrease subjectively. This study would continue our attempt to elucidate DIM's promotion of anti-proliferative estrogen metabolites in proliferative thyroid disease.

Interventions

DIETARY_SUPPLEMENTDiindolylmethane (DIM)

300 mg of Bioresponse DIM (100mg/day of active DIM) a day for 30 days

Sponsors

The New York Eye & Ear Infirmary
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Adults diagnosed with abnormalities of the thyroid gland suspicious for benign adenoma, or goiterous changes.

Exclusion criteria

* Patients who are pregnant, attempting to conceive, or lactating will be excluded due to possible deleterious effects of treatment on fetus/infant. Patients taking oral contraceptives, estrogen therapy, tamoxifin or those with a history of breast cancer will be excluded. Patients with liver disease and those taking statins for hypercholesterolemia will also be excluded to decrease the potential for possible liver toxicity. Any patient with elevated liver enzymes on pretreatment blood screening will be excluded from study participation. Patients with serious systemic diseases such as renal failure, diabetes, blood dyscrasia, coagulopathy, and non-optimized cardiopulmonary disease will be excluded due to the possibility of confounding blood tests screening for toxicity.

Design outcomes

Primary

MeasureTime frame
Evidence of objective and quantifiable changes in thyroid size as a resalt of the oral administration of DIM, confirmed by pre- and post- DIM treatment ultrasoundsafter 30 days of DIM consumption and 2 and 4 weeks after DIM consumption stopped

Secondary

MeasureTime frame
Evidence of DIM's effect on estrogen metabolites, confirmed by plasma and urine analysisafter 30 days of DIM consumption

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026