This is the classic website, which will be retired eventually. Please visit the modernized ClinicalTrials.gov instead.
Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu

Evaluating the Genetics and Immunology of Periodic Fever, Aphthous Stomatitis, Pharyngitis, and Cervical Adenitis (PFAPA) Syndrome and Other Tonsil Disorders

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT05656365
Recruitment Status : Recruiting
First Posted : December 19, 2022
Last Update Posted : March 25, 2024
Sponsor:
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Institute of Allergy and Infectious Diseases (NIAID) )

Brief Summary:

Background:

Periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) is the most common periodic fever syndrome of childhood. Symptoms can include swelling of the glands in the throat, mouth ulcers, and tonsillitis. Removal of the tonsils can stop the periodic flareups. But researchers do not know how PFAPA develops. In this natural history study, researchers will collect specimens and data from people with PFAPA to see what they might have in common.

Objective:

To collect blood and other specimens from people with PFAPA to learn more about the illness.

Eligibility:

People aged 1 month or older with symptoms of PFAPA or another tonsil disorder.

Design:

Participants will be screened. Their medical records will be reviewed. Researchers will ask about a family history of PFAPA.

The following specimens may be collected:

Blood. Blood will be drawn either from a needle inserted into a vein or from a prick in the finger or heel.

Mucus and cells. A stick with soft padding on the tip may be rubbed inside the nostrils or mouth.

Stool.

Saliva.

Tissue samples may be taken if participants are having surgery to remove the tonsils or adenoids. Participants having surgery may also have a nasopharyngeal wash; salt water will be squirted into the back of the throat and then sucked back out with a syringe.

Most participants will provide specimens only once. They can do this in person at the clinic; they can also have their local health providers send specimens to the researchers. Some participants may have optional follow-up visits over 10 years.


Condition or disease
Periodic Fever, Aphthous Stomatitis, Pharyngitis, And Cervical Adenitis (Pfapa) Obstructive Sleep Apnea Tonsillitis Tonsil Disorder Sleep Disordered Breathing

Detailed Description:

Study Description:

The purpose of this multisite study is to collect specimens and data from patients with periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) syndrome and other tonsil disorders for genetic, immunologic, cellular, molecular, and microbial research into the pathogenesis of these conditions. Specimens include blood, saliva, buccal swabs, oropharyngeal swabs, nasopharyngeal swabs, nasopharyngeal wash, and/or stool. If a participant is scheduled to undergo a clinically indicated tonsillectomy and/or adenoidectomy, then leftover clinical specimens will also be collected for research. Participants may either be seen in person at the study sites or may be seen remotely via telehealth and provide send-in samples collected locally.

Primary Objective:

To collect samples to understand the immunologic mechanisms and genetic and microbial risk factors for PFAPA and other tonsil disorders.

Primary Endpoints:

  1. Identify genetic risk variants for PFAPA and other tonsil disorders.
  2. Characterize immune cell populations, gene expression (including at the single-cell level), epigenetic features, and protein expression ex vivo in blood, tissue, washes, or swabs from people with PFAPA and other tonsil disorders.
  3. Characterize the tonsillar/adenoid, oral, nasal and/or stool microbiota in people with PFAPA and other tonsil disorders.
  4. Characterize clinical outcomes following tonsillectomy and other clinically indicated treatments.

Secondary Objective: To understand the characteristics and function of unique cell populations in the pharyngeal lymphoid tissues (tonsils and adenoids) and how immune responses to antigens are generated in these tissues.

Secondary Endpoints:

  1. Study responses to antigens and infection in the mucosal lymphoid tissue and peripheral blood.
  2. Characterize unique immune cell populations present in the mucosal tissue.
  3. Characterize immunologic and molecular pathways in the tissue cells.

Layout table for study information
Study Type : Observational
Estimated Enrollment : 1500 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Evaluating the Genetics and Immunology of Periodic Fever, Aphthous Stomatitis, Pharyngitis, and Cervical Adenitis (PFAPA) Syndrome and Other Tonsil Disorders
Actual Study Start Date : May 23, 2023
Estimated Primary Completion Date : June 30, 2037
Estimated Study Completion Date : December 31, 2038


Group/Cohort
Patients
Patients with periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) syndrome and other tonsil disorders.



Primary Outcome Measures :
  1. Identify genetic risk variants for PFAPA and other tonsil disorders [ Time Frame: Throughout study ]
    To collect samples to understand the immunologic mechanisms and genetic and microbial risk factors for PFAPA and other tonsil disorders

  2. Characterize clinical outcomes following tonsillectomy and other clinically indicated treatments. [ Time Frame: Throughout study ]
    To collect samples to understand the immunologic mechanisms and genetic and microbial risk factors for PFAPA and other tonsil disorders

  3. Characterize the tonsillar/adenoid, oral, nasal and/or stool microbiota in people with PFAPA and other tonsil disorders [ Time Frame: Throughout study ]
    To collect samples to understand the immunologic mechanisms and genetic and microbial risk factors for PFAPA and other tonsil disorders

  4. Characterize immune cell populations, gene expression including at the single cell level, epigenetic features, and protein expression ex vivo in blood, tissue, washes, or swabs from people with PFAPA and other tonsil disorders [ Time Frame: Throughout study ]
    To collect samples to understand the immunologic mechanisms and genetic and microbial risk factors for PFAPA and other tonsil disorders


Secondary Outcome Measures :
  1. Characterize immunologic and molecular pathways in the tissue cells. [ Time Frame: Throughout study ]
    To understand the characteristics and function of unique cell populations in the pharyngeal lymphoid tissues (tonsils and adenoids) and how immune responses to antigens are generated in these tissues

  2. Study responses to antigens and infection in the mucosal lymphoid tissue and peripheral blood. [ Time Frame: Throughout study ]
    To understand the characteristics and function of unique cell populations in the pharyngeal lymphoid tissues(tonsils and adenoids) and how immune responses to antigens are generated in these tissues

  3. Characterize unique cell populations and the immunologic and molecular pathways in the tissue cells [ Time Frame: Throughout study ]
    To understand the characteristics and function of unique cell populations in the pharyngeal lymphoid tissues (tonsils and adenoids) and how immune responses to antigens are generated in these tissues



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   1 Month to 99 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients diagnosed with PFAPA and other tonsil disorders.
Criteria
  • INCLUSION CRITERIA:

Participants must meet all the following inclusion criteria to be eligible for this study:

  1. Aged >=1 month. To be seen at the NIH CC, participants must be >=3 years of age.
  2. Diagnosed with PFAPA or another tonsil disorder, or has symptoms consistent with these conditions, as determined by the investigator.
  3. Able to provide informed consent (for ages >=18 years) or has a parent or guardian who can provide informed consent on their behalf (for ages <18 years).
  4. Willing to allow specimens and data to be stored for future research.
  5. Willing to allow genetic testing on their biospecimens.

EXCLUSION CRITERIA:

An individual who has any condition that, in the judgment of the investigator, may put them at undue risk or make them unsuitable for participation in the study will be excluded.


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05656365


Contacts
Layout table for location contacts
Contact: Mary T Bowes (240) 408-0970 mbowes@cc.nih.gov
Contact: Kalpana Manthiram, M.D. (301) 529-4787 kalpana.manthiram@nih.gov

Locations
Layout table for location information
United States, District of Columbia
Children's National Medical Center Not yet recruiting
Washington, District of Columbia, United States, 20010
Contact: Srinivasalu Hemalatha    202-476-2800    HSriniva@childrensnational.org   
United States, Indiana
Indiana University School of Medicine Recruiting
Indianapolis, Indiana, United States, 46290
Contact: Rachel Lemont    317-944-7260    rlemont@iu.edu   
Contact: Annette Childress    (317) 944-7260    afoti@iu.edu   
United States, Maryland
National Institutes of Health Clinical Center Recruiting
Bethesda, Maryland, United States, 20892
Contact: For more information at the NIH Clinical Center contact Office of Patient Recruitment (OPR)    800-411-1222 ext TTY dial 711    ccopr@nih.gov   
Contact: Mary Bowes    (240) 408-0970    mbowes@cc.nih.gov   
Sponsors and Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)
Investigators
Layout table for investigator information
Principal Investigator: Kalpana Manthiram, M.D. National Institute of Allergy and Infectious Diseases (NIAID)
Additional Information:
Publications:

Layout table for additonal information
Responsible Party: National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier: NCT05656365    
Other Study ID Numbers: 10001043
001043-I
First Posted: December 19, 2022    Key Record Dates
Last Update Posted: March 25, 2024
Last Verified: March 21, 2024
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: .Deidentified IPD that underlie results in a publication or associated with genomic data deposited in a data base will be shared.
Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Informed Consent Form (ICF)
Clinical Study Report (CSR)
Analytic Code
Time Frame: Will be shared at the time of publication or data deposition into data base.
Access Criteria: Individual level data in dbGaP is controlled access as investigators must place a request and be approved by dbGaP. Aggregated data will be open access.

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by National Institutes of Health Clinical Center (CC) ( National Institute of Allergy and Infectious Diseases (NIAID) ):
Genome-Wide Association Study (Gwas)
Immunology
Autoinflammation
Tonsillitis
Obstructive Sleep Apnea
Sleep Disordered Breathing
Natural History
Additional relevant MeSH terms:
Layout table for MeSH terms
Hereditary Autoinflammatory Diseases
Pharyngitis
Tonsillitis
Stomatitis
Stomatitis, Aphthous
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Respiratory Aspiration
Lymphadenitis
Familial Mediterranean Fever
Amyloidosis
Fever
Apnea
Respiration Disorders
Respiratory Tract Diseases
Sleep Disorders, Intrinsic
Dyssomnias
Sleep Wake Disorders
Nervous System Diseases
Pathologic Processes
Body Temperature Changes
Mouth Diseases
Stomatognathic Diseases
Respiratory Tract Infections
Infections
Pharyngeal Diseases
Otorhinolaryngologic Diseases
Genetic Diseases, Inborn
Proteostasis Deficiencies
Metabolic Diseases