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[Studie eines Geräts, das nicht von der US-amerikanischen FDA zugelassen oder freigegeben ist]

22. Juni 2026 aktualisiert von: Joy Schmitz, The University of Texas Health Science Center, Houston
The purpose of this study is to evaluate the effects of Contingency Management (CM)+transcranial magnetic stimulation (TMS) on treatment outcomes in individuals who are initial non-responders and to evaluate the effects of CM+TMS on putative mechanisms of change

Studienübersicht

Studientyp

Interventionell

Einschreibung (Geschätzt)

100

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Studienorte

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Ja

Beschreibung

Inclusion Criteria:

  • Able to provide informed consent before any study-related activity, willing to comply with all study procedures, and be available for the duration of the study.
  • Meet Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) diagnostic criteria for moderate-to-severe CUD and report recent cocaine use (verified by at least one positive urine drug screen (UDS) for the cocaine metabolite benzoylecgonine (BE), during intake).
  • Agree (if the participant is female and of child-bearing potential) to use effective contraceptive methods, unless the participant's male partner(s) is surgically sterile (underwent vasectomy).

Acceptable contraceptives include:

  1. oral contraceptives
  2. contraceptive sponge
  3. patch
  4. double barrier (diaphragm/spermicidal or condom/spermicidal)
  5. intrauterine contraceptive system
  6. etonogestrel implant
  7. medroxyprogesterone acetate contraceptive injection
  8. complete abstinence from sexual intercourse
  9. hormonal vaginal ring

Contraceptive measures sold for emergency use after unprotected sex are not acceptable methods for routine use.

  • Women of child-bearing potential must provide negative urine pregnancy test prior to randomization.
  • Be able to provide the names and contact information of at least 2 persons who can consistently locate their whereabouts

Exclusion Criteria:

  • Current DSM-5 diagnosis for substance use disorder (of at least moderate severity) other than cocaine, cannabis, or nicotine or a substance Use Disorder (SUD) requiring medical detoxification (e.g., alcohol, opioid, benzodiazepine)
  • Presence of any medical, neurological, psychiatric, or physical condition, disease, or illness (including psychosis and bipolar disorder) that, in the opinion of the PIs and the Certified Registered Nurse Anesthetist (CNRA)Medical Director could: (a) compromise interfere, limit, or reduce the subject's ability to complete the study; or (b) adversely impact the safety of the subject or the integrity of the data.
  • Has current or recent (within 3 months of potential enrollment) suicidal ideation, suicidal behavior, homicidal ideation or a homicidal plan sufficient to raise subject safety concerns based on the following assessments:

    1. Structured Clinical Interview for DSM-5 (SCID-5)
    2. Columbia-Suicide Severity Rating Scale - Answers YES to Questions 3, 4, 5, or 6
    3. Assault & Homicidal Danger Assessment Tool - Key to Danger > 1
  • Any contraindications to MRI scans (metal in the body; claustrophobia). -Medical implants contraindicating TMS (i.e., aneurysm clips or coils, stents, implanted stimulators, implanted vagus nerve or deep brain stimulators, implanted electrical devices such as pacemakers or medication pumps, electrodes for monitoring brain activity, cochlear implants for hearing, any magnetic implants, bullet fragments, any other metal device or object implanted in your body closer than 30 cm from the coil).
  • History of brain surgery.
  • History of an intracranial lesion or any medical or neurological diagnosis/condition associated with increased intracranial pressure (i.e., Idiopathic Intracranial Hypertension/Pseudotumor Cerebri) OR any of the following symptoms within 30 days of enrollment: headaches > 15 days/month, loss of vision or decreased vision
  • Moderate-to-severe heart disease.
  • History of stroke.
  • Taking any antidepressant or antipsychotic medication at a dose above the maximum recommended dose or at a dose deemed to be potentially unsafe according to the study physician; has taken any of the following medications, which are known to increase the risk of seizures, within 1 week of study enrollment; or does not agree to abstain from taking the following medications during study participation:

    1. clozapine
    2. chlorpromazine
    3. bupropion
    4. clomipramine hydrochloride
    5. amoxapine
    6. maprotiline hydrochloride
    7. diphenhydramine
    8. stimulants other than cocaine including the following:
    9. Dextroamphetamine and amphetamine ii. Dextroamphetamine iii. Lisdexamfetamine dimesylate iv. Methamphetamine

    v. Methylphenidate i. tramadol j. isoniazid.

  • Personal history of epilepsy or seizure disorder and/or family history including a first degree relative
  • Serious head injury with loss of consciousness
  • Having conditions of probation or parole requiring reports of drug use to officers of the court or impending incarceration
  • For adolescent aged participants (18-21 only): any risk factor for neurocardiogenic syncope (history of syncope/ presyncope related to noxious stimuli, anxiety, micturition, or posture).
  • Pregnant or nursing for female participants
  • Inability to read, write, or speak English.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Vervierfachen

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: CM for 2 weeks then CM only
Participants will have thrice-weekly (Monday, Wednesday and Friday) clinic visits, during which participants can earn rewards for submitting a cocaine-negative UDS.CM sessions will consist of the following components: 1) brief discussion of any substance use/cravings since prior CM session; 2) verification that the target behavior (abstinence) was achieved; 3) if achieved, provide incentives and discuss individual plans to use the earnings; 4) if not achieved, review the goals of CM and plans to continue engaging in treatment.
Schein-Komparator: CM for 2 weeks, then TMS sham plus CM
Participants will have thrice-weekly (Monday, Wednesday and Friday) clinic visits, during which participants can earn rewards for submitting a cocaine-negative UDS.CM sessions will consist of the following components: 1) brief discussion of any substance use/cravings since prior CM session; 2) verification that the target behavior (abstinence) was achieved; 3) if achieved, provide incentives and discuss individual plans to use the earnings; 4) if not achieved, review the goals of CM and plans to continue engaging in treatment.
The sham stimulations with negligible induced electric fields, delivered via the same H4 coil to mimic the acoustic characteristics and scalp sensations of active H4 will be used.
Experimental: CM for 2 weeks, then TMS experimental plus CM

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Number of participants who test negative for cocaine use as assessed by urine drug screen
Zeitfenster: from Baseline to Week 11
this will be measured measured 3 times per week throughout the study
from Baseline to Week 11
Cocaine craving as assessed by cocaine craving questionnaire (CCQ)
Zeitfenster: from Baseline to Week 11
this will be administered weekly. This is a 45 item questionnaire and each is scored on a Likert scale from 1( strongly disagree), to 7(strongly agree). Score range is 45 (minimum) - 315 (maximum).Higher scores indicate greater cocaine craving.
from Baseline to Week 11

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in Cue-induced craving as assessed by VAS during cue task
Zeitfenster: Baseline, Week 2, Week 11
Cue-induced craving will be assessed with a 100-pt Visual Analogue Scale (VAS) that will ask "How much are you craving cocaine right now?" before and after exposure to an EEG Picture Viewing Task that will display cocaine, emotional, and neutral images. Higher score indicates more craving.
Baseline, Week 2, Week 11
Change in amplitude of the Late Positive Potential (LPP) in Microvolts in Response to Visual Stimuli on the Picture Viewing Task as Assessed by EEG
Zeitfenster: Baseline, Week 2, Week 11
The Picture Viewing Task will be used to elicit the late positive potential (LPP), reflecting the motivational salience of a stimulus. During this task, participants are asked to view a slideshow of images including pleasant, unpleasant, neutral, and cocaine-related images. The amplitude of the LPP in microvolts in response to visual stimuli is reported.
Baseline, Week 2, Week 11
Change in Functional Connectivity between the Bilateral anterior insula (AIn) and central amygdala (CeA) as measured by Functional Magnetic Resonance Imaging (fMRI)
Zeitfenster: Baseline, Week 2, Week 11
Functional connectivity between bilateral anterior insula and central amygdala regions will be quantified using resting-state functional magnetic resonance imaging and seed-based connectivity analysis.
Baseline, Week 2, Week 11
Change in Phenotype assessment battery (PhAB) as assessed by addiction domains of cognition, reward, and negative emotionality
Zeitfenster: Baseline, Week 2, Week 11
The Phenotype Assessment Battery (PhAB) assesses addiction-related domains including cognition, reward processing, and negative emotionality using a standardized battery of behavioral tasks and self-report measures. Individual measure scores are calculated according to established scoring procedures and converted to standardized scores. Standardized scores within each domain are combined to generate domain-specific composite scores. Composite scores are continuous measures without a fixed range, with higher scores indicating greater impairment within the respective domain.
Baseline, Week 2, Week 11

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Ermittler

  • Hauptermittler: Joy M Schmitz, PhD, The University of Texas Health Science Center, Houston

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

21. April 2026

Primärer Abschluss (Geschätzt)

1. Juni 2029

Studienabschluss (Geschätzt)

1. September 2029

Studienanmeldedaten

Zuerst eingereicht

18. März 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

18. März 2026

Zuerst gepostet (Tatsächlich)

24. März 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

25. Juni 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

22. Juni 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Andere Studien-ID-Nummern

  • HSC-MS-25-0782
  • 1U01DA064181-01 (US NIH Stipendium/Vertrag)

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Ja

Produkt, das in den USA hergestellt und aus den USA exportiert wird

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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