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DETECTRA: Remote Monitoring to Detect Rheumatoid Arthritis Flares and Treatment Response (Pix-Monitor)

29 settembre 2026 aggiornato da: Thomas Hügle, Centre Hospitalier Universitaire Vaudois

A Randomized, Four-Arm, Open-label, Standard-of-care Controlled, Multicentric Trial to Investigate the Efficacy of the Remote Monitoring Software DETECTRA to Detect and Shorten Time to Flare Detection and Treatment Response in Rheumatoid Arthritis.

The goal of this clinical trial is to learn if the DETECTRA remote monitoring platform can help clinicians detect rheumatoid arthritis (RA) disease flares earlier and more reliably, as well as identify response and non-response or insufficient response to treatment, compared with standard care. The study will include patients with RA and will follow them for 12 months.

The main questions it aims to answer are:

In patients with remission or low disease activity (DAS28-CRP ≤ 2.6), does remote monitoring with patient-reported outcomes and self-performed imaging using DETECTRA enable earlier detection of disease flares compared with standard care? In patients with higher disease activity (DAS28-CRP > 2.6) who have switched medication, does DETECTRA enable earlier and more reliable identification of response and non-response or insufficient response to treatment compared with standard care?

Researchers will compare the DETECTRA intervention groups with standard-of-care control groups to see whether remote monitoring enables earlier and more reliable detection of changes in disease activity and treatment response.

Participants will:

Be assigned to a Low Disease Activity (LDA) or High Disease Activity (HDA) substudy based on their DAS28-CRP score at baseline.

Be randomly assigned within their substudy to either the DETECTRA remote monitoring group or the standard-of-care group.

In the DETECTRA group, regularly provide patient-reported outcomes and perform self-imaging of their hands remotely using the DETECTRA application.

Attend standard clinical assessments and be followed for 12 months.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

320

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Luoghi di studio

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 80 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Aged ≥ 18 years and ≤ 80 years
  • Diagnosed with RA according to the EULAR 2010 criteria
  • Affection of at least one hand joint in the past (synovitis, tenderness, dactylitis, tenosynovitis)
  • Must provide and sign the study's Informed Consent prior to any study-related procedures;
  • Able to understand and interact with the study team
  • Agree to comply in good faith with all conditions of the recordings, and to attend all required study procedures

Exclusion Criteria:

  • Deformation of the hands or patients who have undergone joint arthrodesis or arthroplasty
  • Known microcrystal disease (e.g. gout, calcium pyrophosphate deposition) if hands are affected or pre-existing immune-mediated rheumatic diseases such as systemic lupus erythematosus or Sjögren's disease in the past 2 years
  • Lymphoedema in arms or hands following an axillary lymph node dissection
  • Immunosuppressive therapy for other autoimmune conditions <2 years ago
  • Immunosuppressive therapy for other autoimmune conditions with B-cell depletion <5 years ago
  • Haematological or oncological treatments involving induction and / or maintenance chemotherapy <5 years
  • Aged >80 years
  • Participation in another investigation with an investigational drug or another MD within the 30 days preceding the trial or currently participating or planning to participate in an interventional trial
  • Inability to provide written informed consent
  • Severe cognitive impairment, severe psychiatric conditions or other inability to follow the procedures of the study
  • No regular access (weekly) to a smartphone
  • Adults who lack capacity to consent, known pregnant and breastfeeding women
  • Subjects for whom routine examination of the musculoskeletal system is not possible, or whose hands cannot be imaged (e.g., bandages that cannot be removed for hand picture taking, or injuries affecting the PIP joints both persisting for > 27 days)
  • Enrolment of the PI, his/her family members, employees and other dependent persons
  • Other severe acute or chronic medical or psychiatric condition, or laboratory abnormality that would impart, in the judgment of the investigator, excess risk associated with study, or which, in the judgment of the investigator, would make the patient inappropriate for entry into this study

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: DETECTRA low disease activity (LDA)

Inclusion criteria for being randomized within the LDA study:

• DAS28-CRP ≤ 2.6 Participants in this group will receive standard of care treatment and in addittion receive the DETECTRA application which they will use on a weekly basis during 12months.

DETECTRA is a mobile application to be used on a weekly basis by patients where they submit hand images as well as report patient reported outcomes.

Sperimentale: DETECTRA high disease activity (HDA)

Inclusion criteria for being randomized withing the HDA study:

  • DAS28-CRP > 2.6
  • A change or start of any DMARDs treatment Participants in this arm will receive standard of care treatment and in addition will use the DETECTRA app on a weekly basis for 12months.

DETECTRA is a mobile application to be used on a weekly basis by patients where they submit hand images as well as report patient reported outcomes.

Altro: Standard of Care - low disease activity

Inclusion criteria for being randomized within the LDA study:

• DAS28-CRP ≤ 2.6 Participants in this arm will receive the standard of care treatment.

Standard of care for rheumatoid arthritis informed by EULAR guidelines.

Altro: Standard of Care - high disease activity

Inclusion criteria for being randomized withing the HDA study:

  • DAS28-CRP > 2.6
  • A change or start of any DMARDs treatment Particiapnts in this arm will receive standard of care treatment.

Standard of care for rheumatoid arthritis informed by EULAR guidelines.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Time to response to treatment detection
Lasso di tempo: From study enrollment to the end of study at 12months.

HDA groups:

•Time in (days) from study enrolment to response to treatment detection in RA (defined as DAS28 change of > 0.6 between 2 visits / CDAI improvement ≥ 6 points to baseline at 3 months and current CDAI remaining ≤ 10 points) comparing the DETECTRA group to the standard care group.

From study enrollment to the end of study at 12months.
Time to flare detection
Lasso di tempo: From enrollment to the end of study at 12months.

LDA groups: •Time (in days) from study enrolment to confirmed flare (defined as Change of Clinical Disease Activity Index (CDAI) ≥ 4.5 points from last visit & current CDAI > 10 or change of DAS28-CRP > 1.2 and the current DAS28 ≥ 2.6) and

From enrollment to the end of study at 12months.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Diagnostic accuracy
Lasso di tempo: From study enrollment until end of study at 12months.

Diagnostic accuracy of the DETECTRA system to differentiate between presence and absence of a flare / non-response / insufficient response to treatment (as defined by clinical examination) will be assessed using the area under the receiver operating characteristic curve (AUROC), sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV).

From study enrollment until end of study at 12months.
Sensitivity
Lasso di tempo: From study enrollment until end of study at 12months.

Missed flares/non-response / insufficient response to treatment of clinical arthritis in the intervention group: This endpoint will be assessed if a patient comes for a visit based on his request and in any visit. Any confirmed flare is classified as a missed flare if a patients request a visit (or in a planned visits) without that the physician had previously recognized signs via the dashboard of a potential flare.

From study enrollment until end of study at 12months.
Specificity
Lasso di tempo: From enrollment until end of study at 12months.

False flares/detection of non-response / insufficient response to treatment in the intervention group will be assessed at any interim visit and is reported if a patient got flagged via the dashboard, came in for confirmation but does not get confirmation of a flare or of a non-response / insufficient response to treatment.

From enrollment until end of study at 12months.
Adherence
Lasso di tempo: From enrollment until the end of study at 12months.

Percentage of submissions on the application (totally expected submissions = every week until end of trial) for patients in the DETECTRA intervention group.

From enrollment until the end of study at 12months.
Adherence
Lasso di tempo: From enrollment until the end of study at 12months.

Average amount of reminders (calls by the study nurse but not the automatic reminders via the app) per patient needed during the duration of the study (1year). For participants in the DETECTRA arms.

From enrollment until the end of study at 12months.
Cost-effectiveness estimates
Lasso di tempo: From enrollment until end of study at 12months.

The primary outcome of interest for the health economic evaluation is cost-effectiveness, expressed as the incremental cost per Quality-Adjusted Life Year (QALY) gained through the use of DETECTRA compared to standard of care. Data for the evaluation will be collected from both the DETECTRA system and clinical records during the trial. Through the app, patients will report PROs including self-assessed joint counts (tender and swollen), global pain and stiffness scores (via VAS-like scales), medication use, free-text symptom notes, and joint-specific pain reports. At the clinic level, data will be collected on the timing and number of visits, formal RA diagnoses, and DMARD treatment initiations and changes. These trial-derived endpoints, particularly time-to-flare detection and amount of visits, will inform a Markov model to extrapolate long-term costs and outcomes beyond the trial period.

From enrollment until end of study at 12months.
Number of consultations
Lasso di tempo: From enrollment until the end of study at 12months.

LDA group only:

Difference in number of consultations within the 12months study period in the DETECTRA group as compared to the standard group.

From enrollment until the end of study at 12months.
Difference in DAS28-CRP
Lasso di tempo: From enrollement until the end of study at 12months.

After 12 months will be assessed by a trained rheumatologist in the DETECTRA group as compared to the standard group.

From enrollement until the end of study at 12months.
Difference in Simplified Disease Activity Index (SDAI)
Lasso di tempo: From enrollment until end of study at 12months.

Difference in SDAI after 12 months will be assessed by a trained rheumatologist in the DETECTRA group as compared to the standard group.

From enrollment until end of study at 12months.
Remission rates
Lasso di tempo: From enrollment until the end of study at 12months.

Percentage of patients in remission after 12 months, will be assessed by a trained rheumatologist in the DETECTRA group as compared to the standard group.

From enrollment until the end of study at 12months.
Sensitivity to change
Lasso di tempo: From enrollment until the end of study at 12months.

Sensitivity to change will be calculated for the biomarker (FFI) using the Standardized Response Mean (SRM), defined as the mean change from baseline to follow-up divided by the standard deviation of the change scores.

From enrollment until the end of study at 12months.
Patient empowerment
Lasso di tempo: From enrollment until the end of study at 12months.

Regular self-reporting and feedback may increase perceived empowerment, trust in care, and shared decision-making (to be measured via PGIC).

From enrollment until the end of study at 12months.
Mental health & Quality of Life:
Lasso di tempo: From enrollment until the end of study at 12months.

For diagnosed patients, reassurance from remote monitoring and reduced flare anxiety may improve mental health (measured via SF-36).

From enrollment until the end of study at 12months.
Usability and acceptance
Lasso di tempo: From enrollment until the end of study at 12months.

This will be measured with the System Usability Scale (SUS) at the end of the trial within patients and HCPs who were using the app or the dashboard during the trial.

From enrollment until the end of study at 12months.

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Exploratory validation of additional imaging-derived metrics (e.g., finger joint geometry, patterns, motility)
Lasso di tempo: From enrollment until the end of study at 12months.

Images and videos from any time-point of the investigation taken via the DETECTRA system will be used to support future enhancements of DETECTRA and the algorithms of the system.

From enrollment until the end of study at 12months.
Diagnostic accuracy FFI
Lasso di tempo: From enrollment until the end of study at 12months.

Diagnostic accuracy of the FFI to differentiate between presence and absence of synovitis (as defined by clinical examination and or ultrasound) will be assessed using the area under the receiver operating characteristic curve (AUROC), sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV).

From enrollment until the end of study at 12months.
Thermal imaging dataset construction
Lasso di tempo: From enrollment until the end of study at 12months.

• Data completeness: The number of valid thermal images successfully linked with their corresponding comprehensive set of clinical, demographic, laboratory, and ultrasound reference data.

From enrollment until the end of study at 12months.
Thermal imaging
Lasso di tempo: From enrollment until the end of study at 12months.

Data quality: Assessment of image technical quality (e.g., image noise, hand position, absence of artifacts) to ensure suitability for future image processing.

From enrollment until the end of study at 12months.
Thermal imaging
Lasso di tempo: From enrollment until the end of study at 12months.

Dataset integrity: The successful compilation of a structured dataset suitable for the development and validation of artificial intelligence models

From enrollment until the end of study at 12months.

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Investigatori

  • Investigatore principale: Thomas hügle, Prof., Centre hospitalier universitaire vaudois (CHUV)

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Collegamenti utili

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

30 novembre 2026

Completamento primario (Stimato)

30 dicembre 2028

Completamento dello studio (Stimato)

30 dicembre 2028

Date di iscrizione allo studio

Primo inviato

22 settembre 2026

Primo inviato che soddisfa i criteri di controllo qualità

29 settembre 2026

Primo Inserito (Effettivo)

5 ottobre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

5 ottobre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

29 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • Pix-Monitor

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .