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Psykofysiske og nevrale mekanismer som bidrar til kronisk postkirurgisk smerte hos ungdom og voksne

13. oktober 2026 oppdatert av: Christine B. Sieberg, PhD, Massachusetts General Hospital

The current project will (1) enhance our understanding of the neurobiology of chronic post-surgical pain (CPSP); (2) provide a metric to follow patients with CPSP in the clinic; (3) provide a metric for those who will chronify; and (4) understand the age-related differences in CPSP. Ultimately, an improved comprehension of mechanisms linked to CPSP will provide finer tools for optimizing the selection of treatments for individual patients. Moreover, data that demonstrates the underlying pathobiological pain mechanism(s) active in CPSP, particularly those non-responsive to current therapies, may be used to validate novel strategies both pharmacological and non-pharmacological.

Studieoversikt

Status

Avsluttet

Detaljert beskrivelse

In this mechanistic clinical trial, participants will be randomized into either a one-day (5 hours) group workshop based on Acceptance and Commitment Therapy (ACT) and a one-month post workshop zoom individual booster session or Treatment as Usual (TAU).

Dr. Sieberg will conduct the groups with assistance from the RA. Dr. Sieberg is a licensed clinical psychologist, who has delivered manualized ACT for chronic pain in her clinical practice. The intervention follows a manual patterned after an existing 1-day ACT intervention for chronic pain and will be adapted to meet the needs of patients with ongoing CPSP. Topics covered in the workshop include: (1) mindfulness of troublesome thoughts, feelings, and physical sensations; (2) willingness to face and accept experiences that cannot be changed; (3) identifying values; and (4) promoting behavior changes that support value-based action.

The goal of the ACT intervention is to increase awareness of thoughts, feelings, and behaviors that exacerbate pain while minimizing avoidance that interferes with engagement in valued action. Participants will also receive an individually tailored 30-minute booster session via zoom one month following the workshop. During the booster session, ACT principles will be reinforced and the participant will work together with Dr. Sieberg to problem-solve and address any difficulties engaging in ACT exercises and practices.

Studietype

Intervensjonell

Registrering (Faktiske)

61

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • Massachusetts
      • Boston, Massachusetts, Forente stater, 02114
        • Massachusetts General Hospital

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

12 år og eldre (Barn, Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

--Females and males aged 12 and older who have previously undergone surgery at least 6 months ago and have chronic post surgical pain (3 months after surgery or longer)

Exclusion Criteria:

  • Inability to speak sufficient English or another language that can be interpreted orally and for questionnaires with the research team
  • Severe cognitive impairment by history (e.g., intellectual disability, severe head injury)
  • Patients with significant psychiatric disorders
  • Use of illegal hard drugs including MDMA, heroin, methamphetimes, amphetamines, cocaine, ketamine, benzodiazepines, and phencyclidine. Absence of such drugs will be confirmed in a urine drug screen during the visit. If prescription medication includes any of these compounds, that medication is not exclusionary.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: ACT Group Intervention

We will evaluate the effects of an Acceptance and Commitment Therapy (ACT) one-day group intervention (with 1-month post group zoom booster session) on the functional near-infrared spectroscopy (fNIRS) signal in groups of adolescents and adult patients diagnosed with CPSP at >3 months post major orthopedic surgery.

The aim of ACT is to address avoidance behaviors by increasing openness to difficult experiences, such as pain, and to develop an awareness of behavioral options that will aid to facilitate behavior change processes that are in accord with living a values-based life.

Ingen inngripen: Treatment as Usual

Treatment as Usual (TAU) for those with CPSP

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Pain acceptance using the Chronic Pain Acceptance Questionnaire - Revised (CPAQ-R)
Tidsramme: 5 years

The 20-item CPAQ-revised has been designed to measure acceptance of pain. The acceptance of chronic pain is thought to reduce unsuccessful attempts to avoid or control pain and thus focus on engaging in valued activities and pursuing meaningful goals. The items on the CPAQ are rated on a 7-point scale from 0 (never true) to 6 (always true). To score the CPAQ, add the items for Activity engagement and Pain willingness to obtain a score for each factor. To obtain the total score, add the scores for each factor together. Higher scores indicate higher levels of acceptance

5 years

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Functional brain metrics using fNIRS
Tidsramme: 5 years

To identify alterations in brain metrics and define changes in brain function as a correlate of pain, participants will undergo an fNIRS brain scan. The following regions of interest will be explored: primary somatosensory cortex (SI) and the medial prefrontal cortex (mPFC). fNIRS is a non-invasive neuroimaging method that employs near infrared light to measure cortical hemodynamic changes. The near infrared light penetrates the superficial layers (the skin and the skull) to then reach the cortex. Throughout the travel within the tissue, light is mostly absorbed by chromophores, namely the oxygenated hemoglobin (HbO) and deoxygenated hemoglobin (HbR).

5 years

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Christine B. Sieberg, Massachusetts General Hospital

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

7. april 2022

Primær fullføring (Faktiske)

19. juni 2026

Studiet fullført (Faktiske)

19. juni 2026

Datoer for studieregistrering

Først innsendt

22. desember 2021

Først innsendt som oppfylte QC-kriteriene

22. mars 2022

Først lagt ut (Faktiske)

31. mars 2022

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

16. oktober 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

13. oktober 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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