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Immune DeficiencyNCT03707782

Mechanisms of Immune Deficiency

An observational study of Immune Deficiency, run by University of Colorado, Denver at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

1. The purpose of this study is to learn more about the changes in genes, cells and proteins that cause immune deficiency diseases. 2. The early stages of the study will focus on two groups of patients: 1. members of families in which several persons have symptoms or medical histories that suggest immune deficiency. Read more about this study

Who is it for?
Ages 18 to 99 years
Conditions the study is for
Immune Deficiency
How many people
200 participants
Where
1 siteUnited States
Study dates
20 Oct 2020to Dec 2023
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 18 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Individuals aged 18 years or older and have an immune deficiency or are related to a person who has an immune deficiency.

Who may be able to join

  • Immunodeficiency disease; or
  • family member of individual with immunodeficiency disease

Who cannot join

  • Persons with immune deficiencies that are secondary to other diseases such as malignancies.
  • Persons who do not have immune deficiencies, persons who are not meet eligibility criteria

Trial locations and contacts

1 site in 1 country.

United States1 site, 1 recruiting
  • UColorado

    Denver, Colorado, 80045

    Charles H Kirkpatrick, MD, 303-724-7197, charles.kirkparick@ucdenver.edu

    Recruiting

Other trials in United States

About this study

  1. The purpose of this study is to learn more about the changes in genes, cells and proteins that cause immune deficiency diseases.
  2. The early stages of the study will focus on two groups of patients:
  3. members of families in which several persons have symptoms or medical histories that suggest immune deficiency.
  4. Patients who have received treatments with medications or drugs that affect functions of the immune system (secondary immune deficiencies).

It is hoped that studies will provide guidelines for extension of the research to other patient groups. Up to 200 patients and family members will be invited to participate.

Read the detailed description

The experiments that are proposed in this portion of the study are intended to:

  1. characterize the significance of the variant form of EZH2 identified in this family. They will characterize the degree of methylation of lysine 27 of histone H3 in subjects with the variant and members of the same family who have the wild type gene. The functional methyltransferase activity of the variant and wild type genes will be measured.
  2. characterize the current status of B-cell maturation and function in subjects with either the variant gene and the wild type gene.
  3. characterize B-cell function (antibody production) and the quality of antibody produced after immunizations in subjects with the wild type gene or the variant gene.
Medical subject headings
Immunologic Deficiency Syndromes

What participants receive

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

Study groups in NCT03707782
Study groupRoleWhat they receive
Individuals with immune deficienciesaged 18 years or older and have an immune deficiency
Family membersaged 18 years or older and are related to a person who has an immune deficiency

What is being measured

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

  1. Measurement of Serum immune globulin

    The clinical definition of "hypogamma-globulinemia is values that are 2 SD below the mean value for the testing laboratory. For this study values that are below the lower limit of abnormal will be scored as abnormal. Chi-square analysis or Fisher's exact test will compare values between subjects with the wild type gene and the variant gene.

    Measured: each year for up to 20 years

  2. Antibody responses

    A four-fold difference or a post-immunization titer of ≥1.3 µg/ml is scored as a true antibody response. Antibody titers and avidity indices are transformed to log2 and evaluated using the Student's T-test.

    Measured: 4 weeks

  3. Measurement of NK cell function

    Spearman correlation will be used to compare the relationship between expression of CD207a by NK cells that are activated with K562 cells or NK cells that are activated with PMA/iono.

    Measured: one time

  4. DNA sequencing

    When indicated, whole exome or whole genome sequencing will be done to identify genetic basis (if any) of the immune deficiency

    Measured: one time

  5. measurement of cellular components of the immune system

    Flow cytometry will be used to identify numbers of cells of various types (e.g.,subpopulations of B-cells and T-cells) to evaluate changes in various cell populations over time. This is especially important for studies of family members who carry disease-causing or disease-associated genes but are clinically health at the time of the first study

    Measured: each year for up to 20 years

  6. health outcome measurements

    The SF-36 form will be used serially to identify changes in health over time

    Measured: each year for up to 20 years

  7. Measurement of avidity

    avidity indices are transformed to log2 and evaluated using the Student's T-test

    Measured: each year for up to 20 years

Timeline

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

  1. First posted16 Oct 2018
  2. Study start20 Oct 2020
  3. Primary completionDec 2023 (estimated)
  4. Study completionDec 2023 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Family based
Time perspective
Prospective
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03707782
Sponsor's protocol ID
18-0337
Status last verified
Apr 2022
First submitted
12 Oct 2018
Last updated
19 Apr 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Bonilla FA, Khan DA, Ballas ZK, Chinen J, Frank MM, Hsu JT, Keller M, Kobrynski LJ, Komarow HD, Mazer B, Nelson RP Jr, Orange JS, Routes JM, Shearer WT, Sorensen RU, Verbsky JW, Bernstein DI, Blessing-Moore J, Lang D, Nicklas RA, Oppenheimer J, Portnoy JM, Randolph CR, Schuller D, Spector SL, Tilles S, Wallace D; Joint Task Force on Practice Parameters, representing the American Academy of Allergy, Asthma & Immunology; the American College of Allergy, Asthma & Immunology; and the Joint Council of Allergy, Asthma & Immunology. Practice parameter for the diagnosis and management of primary immunodeficiency. J Allergy Clin Immunol. 2015 Nov;136(5):1186-205.e1-78. doi: 10.1016/j.jaci.2015.04.049. Epub 2015 Sep 12.

    PubMed 26371839
  • O'Meara MM, Simon JA. Inner workings and regulatory inputs that control Polycomb repressive complex 2. Chromosoma. 2012 Jun;121(3):221-34. doi: 10.1007/s00412-012-0361-1. Epub 2012 Feb 19.

    PubMed 22349693
  • Su IH, Basavaraj A, Krutchinsky AN, Hobert O, Ullrich A, Chait BT, Tarakhovsky A. Ezh2 controls B cell development through histone H3 methylation and Igh rearrangement. Nat Immunol. 2003 Feb;4(2):124-31. doi: 10.1038/ni876. Epub 2002 Dec 23.

    PubMed 12496962
  • Caganova M, Carrisi C, Varano G, Mainoldi F, Zanardi F, Germain PL, George L, Alberghini F, Ferrarini L, Talukder AK, Ponzoni M, Testa G, Nojima T, Doglioni C, Kitamura D, Toellner KM, Su IH, Casola S. Germinal center dysregulation by histone methyltransferase EZH2 promotes lymphomagenesis. J Clin Invest. 2013 Dec;123(12):5009-22. doi: 10.1172/JCI70626. Epub 2013 Nov 8.

    PubMed 24200695
  • Bodor C, Grossmann V, Popov N, Okosun J, O'Riain C, Tan K, Marzec J, Araf S, Wang J, Lee AM, Clear A, Montoto S, Matthews J, Iqbal S, Rajnai H, Rosenwald A, Ott G, Campo E, Rimsza LM, Smeland EB, Chan WC, Braziel RM, Staudt LM, Wright G, Lister TA, Elemento O, Hills R, Gribben JG, Chelala C, Matolcsy A, Kohlmann A, Haferlach T, Gascoyne RD, Fitzgibbon J. EZH2 mutations are frequent and represent an early event in follicular lymphoma. Blood. 2013 Oct 31;122(18):3165-8. doi: 10.1182/blood-2013-04-496893. Epub 2013 Sep 19.

    PubMed 24052547

Questions about this trial

What is this clinical trial studying?

An observational study of Immune Deficiency, run by University of Colorado, Denver 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 2 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: status not confirmed, as of the sponsor's last update on 19 Apr 2022. 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Charles Kirkpatrick ((303) 724-7197, charles.kirkpatrick@ucdenver.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Measurement of Serum immune globulin (time frame: each year for up to 20 years). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03707782, which also lists 5 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 19 Apr 2022.

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