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Status unknownNCT00237523Updated Jun 18, 2007

Study for Treatment of Moderate or Severe, Periodic, "Cyclic", Breast Pain

A Phase 3 interventional study of IoGen (molecular iodine) in Fibrocystic Disease of Breast, Fibrocystic Changes of Breast and Fibrocystic Mastopathy, sponsored by Symbollon Pharmaceuticals. Status unknown at 39 sites in United States. Open to female participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2007-06-18.

Sponsored by Symbollon Pharmaceuticals · Phase 3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jun 2007), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Phase 3
Study type
Interventional
Enrollment
175
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
Female
01

Study summary

  • History of clinical breast pain for at least the last six months.
  • At least six days of moderate or severe breast pain per cycle.
  • Fibrosis, cysts, nodules involving at least 25% of the surface of one breast.
  • Euthyroid with no prior history of thyroid disease.
  • Six months of daily therapy with molecular iodine.
  • Placebo controlled vs active (1:1).
Read the detailed description

Primary efficacy parameters will be measured by patient self-assessment of pain/tenderness using a categorical daily pain diary. Clinical pain is defined as a patient assessment of moderate or severe pain for any given day. Total clinical pain per menstrual cycle is calculated based upon the categorical ratings recorded in a patient's daily pain diary over the course of a complete menstrual cycle.

A directed breast examination will be used as a secondary efficacy endpoint. Changes in the brest examination will be determined by the physician after consideration of both the nature of the examination findings and the surface area of breast involvement. Changes as noted after six months of therapy, relative to the screening visit (baseline) will be used to evaluate this endpoint.

02

Conditions studied

  • Fibrocystic Disease of Breast
  • Fibrocystic Changes of Breast
  • Fibrocystic Mastopathy
  • Pain

Keywords

  • Breast pain
  • Mastalgia
  • Cyclic mastalgia
  • Periodic mastalgia
  • Non-cyclic mastalgia
  • Fibrosis
  • Nodularity
  • Cysts
  • Fibrocystic breast disease
  • Fibrocystic breast condition
  • Fibocystic breast syndrome
03

In context

Cystic Fibrosis

1,581 studies on the registry are indexed under Cystic Fibrosis; 190 are open to participants now.

This study's planned enrollment of 175 is above the median of 36 across 1,034 interventional studies indexed under Cystic Fibrosis.

Browse Cystic Fibrosis studies →

Lead sponsor

This is the only study on the registry with Symbollon Pharmaceuticals as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • History of clinical breast pain.
  • Documentation of 6 or more sequential days of moderate or severe pain by patient daily diary.
  • Conservative measures such as local heat, non-prescription analgesics, and properly fitted garments are not effective for the treatment of symptoms
  • Euthyroid with no prior history of thyroid disease.
  • Premenopausal female between the ages of 18 and 50.
  • The presence of at least one palpable structure (nodules, cysts) and involvement (diffuse nodularity or breast thickening) of at least 25% of at least one breast surface.

Exclusion criteria

Exclusion Criteria:

  • History of thyroid disease
  • Non-cyclic breast pain
  • Treatment with gonadotropin releasing hormone (GnRH) agonist, Danocrine, tamoxifen, raloxifene, or bromocriptine within three months of starting the trial
  • Initiation or change of any hormonal therapy within 6 months of enrollment; including birth control pills, hormone replacement therapy, any progestin including Norplant or Depo-Provera;
  • Current treatment with iodine or iodine-containing medications or diagnostics
  • Known hypersensitivity to iodine-containing products
  • Breast implants;
  • Oophorectomy (complete or partial)
  • Uncontrolled hypertension;
  • Breast biopsy breast biopsy within two months of screening; or expectation of a breast biopsy during the study for a suspicious mass present at baseline;
  • Pregnant women or nursing mothers
  • History of malignancy within the previous 5 years other than basal cell or squamous cell carcinoma of the skin
  • History of breast cancer
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Double
Enrollment
175 participants (estimated)

Interventions

  • DrugIoGen (molecular iodine)
06

What researchers measure

Primary outcomes

  1. Total clinical breast pain as documented by patient daily diary.

Secondary outcomes

  1. Change in fibrosis based upon breast examination.

07

Study locations

39 sites
  • Medical Affiliated Research Center, Inc.
    Huntsville, Alabama 35801, United States
  • Women's Health Research
    Phoenix, Arizona 85015, United States
  • Visions Clinical Research
    Tucson, Arizona 85712, United States
  • Expresscare Clinical Research
    Colorado Springs, Colorado 80909-1691, United States
  • Downtown Women's Heath Care
    Denver, Colorado 80218, United States
  • University of Colorado
    Denver, Colorado 80262, United States
  • S.H.E. Medical Associates
    Hartford, Connecticut 06105, United States
  • The GYN's Center for Women's Health
    Waterbury, Connecticut 06708, United States
  • Greater Hartford Women's Health Associates
    West Hartford, Connecticut 06117, United States
  • Visions Clinical Research
    Boynton Beach, Florida 33437, United States
  • Women's Medical Research Group, LLC
    Clearwater, Florida 33759, United States
  • Miami Research Associates, Inc.
    Miami, Florida 33143, United States
  • Palm Beach Research Center
    West Palm Beach, Florida 33409, United States
  • Soapstone Center for Clinical Research
    Decatur, Georgia 30034, United States
  • Fellows Research Alliance, Inc.
    Savannah, Georgia 31406, United States
  • Women's Health Practice
    Champaign, Illinois 61820, United States
  • Physicians Research Group
    Indianapolis, Indiana 46250, United States
  • University of Iowa
    Iowa City, Iowa 52242, United States
  • Kentucky Medical Research Center
    Lexington, Kentucky 40504, United States
  • York Clinical Consulting
    Marrero, Louisiana 70072, United States
  • MedVadis Research
    Wellesley, Massachusetts 02481, United States
  • Fallon Clinic
    Worcester, Massachusetts 01608, United States
  • University of Missouri
    Kansas City, Missouri 64108, United States
  • Department of Ob/Gyn - Women's Health University of Saint Louis
    Saint Louis, Missouri 63117, United States
  • The Medical Group of Northern Nevada
    Reno, Nevada 89502, United States
  • Women's Health Research Center, LLC
    Lawrenceville, New Jersey 08648, United States
  • Laurel Creek Research Associates
    Moorestown, New Jersey 08057, United States
  • Montefiore Medical Center/Albert Einstein College of Medicine
    Bronx, New York 10461, United States
  • Wake Research Associates, LLC
    Raleigh, North Carolina 27612, United States
  • Radiant Research
    Cincinnati, Ohio 45249, United States
  • HWC Women's Research Center
    Miamisburg, Ohio 45342, United States
  • LION Research
    Norman, Oklahoma 73071, United States
  • Oregon Health & Science University
    Portland, Oregon 97239, United States
  • Penn State The Milton S. Hershey Medical Center
    Hershey, Pennsylvania 17033, United States
  • Drexel University College of Medicine
    Philadelphia, Pennsylvania 19102-1192, United States
  • Memorial Hospital of Rhode Island
    Pawtucket, Rhode Island 02860, United States
  • Fellows Research Alliance, Inc.
    Hilton Head Island, South Carolina 29926, United States
  • Women's Clinical Research Center/North Seattle Women's Group
    Seattle, Washington 98105, United States
  • Tacoma Women's Specialists
    Tacoma, Washington 98405, United States
08

References and documents

Publications

  • Aceves C, Anguiano B, Delgado G. Is iodine a gatekeeper of the integrity of the mammary gland? J Mammary Gland Biol Neoplasia. 2005 Apr;10(2):189-96. doi: 10.1007/s10911-005-5401-5. PubMed 16025225 ↗
  • Cann SA, van Netten JP, van Netten C. Hypothesis: iodine, selenium and the development of breast cancer. Cancer Causes Control. 2000 Feb;11(2):121-7. doi: 10.1023/a:1008925301459. PubMed 10710195 ↗
  • Kessler JH. The effect of supraphysiologic levels of iodine on patients with cyclic mastalgia. Breast J. 2004 Jul-Aug;10(4):328-36. doi: 10.1111/j.1075-122X.2004.21341.x. PubMed 15239792 ↗
  • Ghent WR, Eskin BA, Low DA, Hill LP. Iodine replacement in fibrocystic disease of the breast. Can J Surg. 1993 Oct;36(5):453-60. PubMed 8221402 ↗
  • Garcia-Solis P, Alfaro Y, Anguiano B, Delgado G, Guzman RC, Nandi S, Diaz-Munoz M, Vazquez-Martinez O, Aceves C. Inhibition of N-methyl-N-nitrosourea-induced mammary carcinogenesis by molecular iodine (I2) but not by iodide (I-) treatment Evidence that I2 prevents cancer promotion. Mol Cell Endocrinol. 2005 May 31;236(1-2):49-57. doi: 10.1016/j.mce.2005.03.001. Epub 2005 Apr 13. PubMed 15922087 ↗
  • Eskin BA, Grotkowski CE, Connolly CP, Ghent WR. Different tissue responses for iodine and iodide in rat thyroid and mammary glands. Biol Trace Elem Res. 1995 Jul;49(1):9-19. doi: 10.1007/BF02788999. PubMed 7577324 ↗
  • Thrall KD, Bull RJ, Sauer RL. Distribution of iodine into blood components of the Sprague-Dawley rat differs with the chemical form administered. J Toxicol Environ Health. 1992 Nov;37(3):443-9. doi: 10.1080/15287399209531682. PubMed 1433379 ↗
  • Venturi S. Is there a role for iodine in breast diseases? Breast. 2001 Oct;10(5):379-82. doi: 10.1054/brst.2000.0267. PubMed 14965610 ↗
  • Smyth PP. Role of iodine in antioxidant defence in thyroid and breast disease. Biofactors. 2003;19(3-4):121-30. doi: 10.1002/biof.5520190304. PubMed 14757962 ↗
  • Ader DN, South-Paul J, Adera T, Deuster PA. Cyclical mastalgia: prevalence and associated health and behavioral factors. J Psychosom Obstet Gynaecol. 2001 Jun;22(2):71-6. doi: 10.3109/01674820109049956. PubMed 11446156 ↗
  • Ader DN, Shriver CD, Browne MW. Cyclical mastalgia: premenstrual syndrome or recurrent pain disorder? J Psychosom Obstet Gynaecol. 1999 Dec;20(4):198-202. doi: 10.3109/01674829909075596. PubMed 10656154 ↗
  • Ader DN, Browne MW. Prevalence and impact of cyclic mastalgia in a United States clinic-based sample. Am J Obstet Gynecol. 1997 Jul;177(1):126-32. doi: 10.1016/s0002-9378(97)70450-2. PubMed 9240595 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 18, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00237523
Lead sponsor
Symbollon Pharmaceuticals
First posted
Oct 12, 2005
Start date
Jul 2005
Completion
Mar 2008 (estimated)
Last update
Jun 18, 2007

Study contacts

Julia Kazakhin, M.D.
study director · Symbollon Pharmaceuticals, Inc.

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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