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신경퇴행성 뇌질환에서 Cyclooxygenase의 PET 이미징

2026년 10월 30일 업데이트: National Institute of Mental Health (NIMH)

1상 연구: 신경퇴행성 뇌질환에서 시클로옥시게나아제의 PET 이미징

Background:

About 5 million adults in the U.S. have Alzheimer s disease or another adult-onset neurodegenerative disorder. Many studies have found that inflammation in the brain contributes to these diseases. Researchers want to find a better way to measure this inflammation.

Objective:

To learn whether COX-1 and/or COX-2 is elevated in the brains of individuals with neurodegenerative brain disease compared to healthy volunteers.

Eligibility:

Adults age 18 years and older in good general health who have an adult-onset neurodegenerative dementia, such as AD, FTD, corticobasal syndrome, Huntington s disease, or MCI, ALS and healthy adult volunteers enrolled in protocols 01-M-0254 or 17-M-0181.

Design:

Participants will be screened with medical history, physical exam with vital signs, and lab tests. They will have a neuropsychological testing. Their heart function will be measured.

Participants will have a magnetic resonance imaging (MRI) scan. The MRI scanner is a metal tube surrounded by a strong magnetic field. Participants will lie on a table that slides in and out of the tube. The machine makes noise. Participants will get earplugs.

Participants will have 2 PET scans. They will be injected with the study drugs through an intravenous catheter placed in an arm vein. The PET scanner is shaped like a doughnut. Participants will lie on a bed that slides in and out of the scanner. A plastic mask will be molded to their head to keep them from moving. A thin plastic tube will be put into an artery at the wrist or elbow crease area. This will be used to draw blood during the scan.

Participants will have 2-5 study visits. Participation lasts 1 week to 4 months, depending on scheduling.

연구 개요

상세 설명

Study Description:

This pilot/exploratory study will examine whether cyclooxygenase 1 (COX-1) and COX-2 are elevated in the brain of individuals with neurodegenerative brain disease compared to healthy volunteers.

Objectives:

Primary Objective: To determine whether COX-1 and/or COX-2 is elevated in the brains of individuals with neurodegenerative brain disease compared to healthy volunteers.

Secondary Objective:

1) To determine retest variability and reliability for each radioligand. 2) To evaluate the specific binding of [11C]PS13 to COX-1 in healthy subjects through blocking study using Ketoprofen, a COX-1 inhibitor

Endpoints:

Primary Endpoint: Measurement of COX-1 and COX-2 density in brain after PET scans with [11C]PS13 and [11C]MC1, respectively.

Secondary endpoint: 1) To measure whole-brain distribution volume (VT) of COX-1 and COX-2 in a retest setting; 2) To correlate VT with the presence of amyloid in Alzheimer s disease (AD) patients, mild cognitive impairment (MCI) patients and healthy volunteers (HV); 3) To calculate the specific binding of [11C]PS13 with a Lassen plot

연구 유형

중재적

등록 (추정된)

184

단계

  • 1단계

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 연락처 백업

  • 이름: Tara N Turon, C.R.N.P.
  • 전화번호: (301) 827-6599
  • 이메일: tara.turon@nih.gov

연구 장소

    • Maryland
      • Bethesda, Maryland, 미국, 20892
        • 모병
        • National Institutes of Health Clinical Center
        • 연락하다:
          • For more information at the NIH Clinical Center contact Office of Patient Recruitment (OPR)
          • 전화번호: TTY8664111010 800-411-1222
          • 이메일: prpl@cc.nih.gov

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

예

연구 대상 성별

모두

설명

  • INCLUSION CRITERIA:

Patients: In order to be eligible to participate in this study, patients must meet all of the following criteria:

  1. Aged 18 or older.
  2. Be able (or have their Legally Authorized Representative (LAR) be able) to understand the study and be willing to sign a written informed consent document.
  3. Have been diagnosed by a neurologist or psychiatrist with MCI, ALS, PD, or an adult onset neurodegenerative dementia, such as AD (including amyloid negative subjects), FTD, corticobasal syndrome, or Huntington s disease.
  4. Be in good general health as evidenced by medical history and physical examination.
  5. Have their radial artery pulse checked for the presence of adequate ulnar collateral flow and the absence of any metal or foreign objects in both wrists.
  6. Agree to adhere to the lifestyle considerations.

Healthy volunteers: In order to be eligible to participate in this study, healthy volunteer subjects must meet all of the following criteria:

  1. Aged 18 or older.
  2. Female participants of childbearing potential must be using a medically acceptable means of contraception
  3. Able provide informed consent.
  4. Be in good general health, as evidenced by medical history and physical examination, and have no cognitive impairment.
  5. Be enrolled in 01-M-0254, The Evaluation of Participants with Mood and Anxiety Disorders and Healthy Volunteers or 17-M-0181, Recruitment and Characterization of Healthy Research Volunteers for NIMH Intramural Studies
  6. Have their radial artery pulse checked for the presence of adequate ulnar collateral flow and the absence of any metal or foreign objects in both wrists.
  7. Agree to adhere to the lifestyle considerations.

EXCLUSION CRITERIA:

Both patients and healthy volunteers who meet any of the following criteria will be excluded from participation in this study:

  1. Clinically significant abnormalities on EKG or laboratory testing. This includes CBC and acute care panel (Na, K, Cl, CO2, creatinine, glucose, urea nitrogen). Any lab value that is two-times the upper limit or even lower values in the investigator s judgment. Creatinine level >1.3 mg/dL
  2. Subjects should not have taken Non-Steroidal Anti-Inflammatory Drugs (NSAID) for two weeks prior to the PET scan. Aspirin, corticosteroids (with the exception of skin products), or immunosuppressants (e.g., methotrexate) must not have been taken in the prior month.
  3. Contraindications to ketoprofen, such as hypersensitivity to ketoprofen or history of upper or lower gastrointestinal bleeding.
  4. Have other major neurological or medical diseases that may cause cognitive dysfunction, such as structural brain diseases, metabolic diseases, paraneoplastic syndromes, infectious diseases, or other significant neurological abnormalities.
  5. Have an unstable medical condition that, in the opinion of the investigators, makes participation unsafe (e.g., an active infection or untreated malignancy).
  6. Are unable to travel to the NIH.
  7. Have recent exposure to radiation related to research (e.g., PET from other research) that, when combined with this study, would be above the allowable limits.
  8. Have an inability to lie flat and/or lie still on the camera bed for at least two hours, including claustrophobia, overweight greater than the maximum for the scanner, and uncontrollable behavioral symptoms, which will be screened by an interview with the patient and/or caregiver during the screening visit.
  9. Participants must not have substance use disorder or alcohol use disorder. However, alcohol or cannabis use by themselves are not exclusion criteria, unless that use impairs function of daily life.
  10. Participants should not be under treatment with Aduhelm, nor should they have been treated in the past.
  11. Are unable to have an MRI scan (e.g., because of pacemakers or other implanted electrical devices, brain stimulators, dental implants, aneurysm clips (metal clips on the wall of a large artery), metallic prostheses (including metal pins and rods, heart valves, and cochlear implants), permanent eyeliner, implanted delivery pumps, shrapnel fragments, or metal fragments in the eye).
  12. Pregnancy
  13. HIV infection
  14. Be NIMH staff or an NIH employee who is a subordinate/relative/co-worker of the investigators.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 특수 증상
  • 할당: 해당 없음
  • 중재 모델: 단일 그룹 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
다른: Only one arm

All subjects receive the same tests

Injected IV followed by PET scanning

Injected IV followed by PET scanning

Injected IV followed by PET scanning

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Measure the concentration of radioligands
기간: 1-2 days

Density of COX-1 and COX-2 in brain

1-2 days

2차 결과 측정

결과 측정
측정값 설명
기간
Measure the retest variability and reliability of the radioligans
기간: 1-2 days

Density of COX-1 and COX-2 in brain

1-2 days

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

수사관

  • 수석 연구원: Robert B Innis, M.D., National Institute of Mental Health (NIMH)

간행물 및 유용한 링크

연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2021년 8월 17일

기본 완료 (추정된)

2029년 4월 11일

연구 완료 (추정된)

2030년 10월 3일

연구 등록 날짜

최초 제출

2020년 5월 20일

QC 기준을 충족하는 최초 제출

2020년 5월 21일

처음 게시됨 (실제)

2020년 5월 21일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 11월 2일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 10월 30일

마지막으로 확인됨

2026년 10월 29일

추가 정보

이 연구와 관련된 용어

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

예

IPD 계획 설명

results will be shared

IPD 공유 기간

18 months after closure of protocol to Clincialtrials.gov

IPD 공유 액세스 기준

BTRIS

IPD 공유 지원 정보 유형

  • 연구_프로토콜

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

예

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

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