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MastocytosisNCT00001356

Characteristics of Mast Cells in Mastocytosis

An observational study of Mastocytosis, run by National Institute of Allergy and Infectious Diseases (NIAID) 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 study will determine what growth factors are involved in promoting and inhibiting mastocytosis-an abnormal increase of mast cells in one or more organ systems. Mast cells release chemicals that can cause itching, blisters, flushing, bone pain, and abdominal pain. Read more about this study

Who is it for?
Any age
Conditions the study is for
Mastocytosis
How many people
300 participants
Where
1 siteUnited States
Study dates
May 1993to May 2002
Phase
Observational
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Subjects include children and adults from birth to 80 years of age.

Participants must have histologic evidence of an increased mast cell number in at least one organ system.

Must be willing to be seen at the NIH according to protocol guidelines.

Routine medical care must be available through their referral physician.

Patients with mastocytosis now followed at the NIH on protocol 88-I-0190 will be continued on this study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institute of Allergy and Infectious Diseases (NIAID)

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: Culture and Characteristics of Mastocytosis Mast Cells

This study will determine what growth factors are involved in promoting and inhibiting mastocytosis-an abnormal increase of mast cells in one or more organ systems. Mast cells release chemicals that can cause itching, blisters, flushing, bone pain, and abdominal pain. Little is known about the disease and there is no cure. Steroids and antihistamines can help reduce some symptoms.

Patients from birth to 80 years of age with increased mast cells in at least one organ system may be eligible for this 3-year study. Family members may also be enrolled for genetic testing.

Read more

Patients will be evaluated yearly at the NIH Clinical Center with the following tests and procedures:

  • Medical history and physical examination.
  • Blood samples.
  • Laboratory blood tests, as medically indicated.
  • Bone marrow aspiration and biopsy - For the bone marrow aspiration and biopsy, the back hipbone is punctured with a sterile needle. Five milliliters (1 teaspoon) of marrow is withdrawn through a syringe and a 1/2-inch piece of tissue is extracted with a special needle.

The blood and bone marrow samples will be used for clinical care and for research to determine if mastocytosis is due to mast cell growth factors or genetic changes.

Patients who require further evaluation and tests will have recommendations made to their primary physician. Any patient who requires immediate treatment will be admitted to the hospital. Standard medical treatment may include antihistamines for itching; steroids for severe abdominal symptoms such as cramping, diarrhea, and evidence of increased mast cells determined by an upper GI study; and adrenaline for anaphylactic shock. Patients who do not respond to conventional treatment may be offered participation in an experimental therapy study.

Participating family members will have a medical history and a blood sample drawn to look for genetic abnormalities.

Read the detailed description

This protocol is designed to examine those growth potentiating and inhibiting factors which regulate mast cell number in patients with mastocytosis, and to explore the molecular basis of the disease process in hopes of improving therapy. Patients entered into the study are seen initially and may elect to be reevaluated yearly. The majority of patients to be entered into this protocol are currently followed at NIH on other protocols. Medical workup and treatment are in accordance with standard medical practice. The protocol is for 3 years, to be extended as facilities, faculty, and patients permit.

Conditions
Mastocytosis
Keywords
IL-3, Stem Cell Factor, Cytokines, Cell Differentiation, Receptors, Bone Marrow, Mastocytosis
Medical subject headings
Mastocytosis

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 1999 (estimated)
  2. Study startMay 1993
  3. Study completionMay 2002

Resources

More details

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

Study design
Study type
Observational
Enrolment
300 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00001356
Sponsor's protocol ID
930136
Other IDs
93-I-0136
Status last verified
May 2002
First submitted
3 Nov 1999
Last updated
4 Mar 2008
Results posted
No

Publications

  • Kirshenbaum AS, Kessler SW, Goff JP, Metcalfe DD. Demonstration of the origin of human mast cells from CD34+ bone marrow progenitor cells. J Immunol. 1991 Mar 1;146(5):1410-5.

    PubMed 1704394
  • Kirshenbaum AS, Goff JP, Kessler SW, Mican JM, Zsebo KM, Metcalfe DD. Effect of IL-3 and stem cell factor on the appearance of human basophils and mast cells from CD34+ pluripotent progenitor cells. J Immunol. 1992 Feb 1;148(3):772-7.

    PubMed 1370517
  • Kettelhut BV, Metcalfe DD. Pediatric mastocytosis. J Invest Dermatol. 1991 Mar;96(3):15S-18S.

    PubMed 1705949

Questions about this trial

What is this clinical trial studying?

An observational study of Mastocytosis, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Mar 2008. 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.

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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00001356, which also lists 3 linked publications.

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 4 Mar 2008.

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