- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT07658170
Evaluation of the Efficacy and Safety of Using Platelet-rich Fibrin (PRF)-Based Lipobolus for the Immediate Reconstruction of Defects After Breast-conserving Resection for Breast Cancer (Minimally Invasive Primary Immediate Grafting) (MINIPIG)
The goal of this clinical trial is to learn if a special type of fat graft, made by mixing a person's own fat with platelet-rich fibrin (PRF), works to fix breast shape defects after cancer surgery. PRF is a substance made from a person's own blood that is rich in growth factors, which may help the graft survive better.
The main questions it aims to answer are:
What percentage of the fat graft's volume remains in place 3 months after radiation therapy?
What is the safety of this procedure, including its side effects and any impact on cancer returning?
Participants will:
- Undergo standard breast-conserving surgery to remove the tumor
- Have liposuction (fat removal) from their own belly or thighs
- Receive a "lipobolus" (their own fat mixed with PRF) placed into the breast defect during the same surgery
- Follow up for 12 months with ultrasound scans, physical exams, and questionnaires (BREASTQ) about their satisfaction and quality of life
Panoramica dello studio
Stato
Intervento / Trattamento
Tipo di studio
Iscrizione (Stimato)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
-
-
-
Saint Petersburg, Russia, 188663
- Reclutamento
- Leningrad Regional Clinical Hospital
-
Contatto:
- Aleksandr Bessonov, PhD
- Numero di telefono: +79061300544
- Email: aa.bessonov@lokod.ru
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Descrizione
Inclusion Criteria:
- Histologically verified breast cancer (BC).
- Disease stage from cTis to cT2 according to the TNM classification (AJCC, 8th edition).
- Tumor grade G1 or G2.
- Estrogen receptor positivity (ER+).
- ECOG performance status = 0.
- Primary tumor size up to 2 cm, based solely on preoperative examination data (mammography, ultrasound, MRI).
- Indications for breast-conserving surgery (BCS) with a breast resection extent determined by a multidisciplinary oncology board.
- Submission of an informed voluntary consent (IVC) regarding participation in the study.
- Ability to understand and comply with the requirements of the study protocol.
Exclusion Criteria:
- Male gender.
- ECOG ≥ 1.
- Multifocal or multicentric tumor.
- Grade G3.
- Triple-negative or HER2-positive tumor with uncontrolled disease.
- Stage cT3 or higher or distant metastases (M1).
- Inflammatory breast cancer.
- Prior neoadjuvant chemotherapy or hormonal therapy.
- Prior radiation therapy to the breast.
- Presence of blood coagulation disorders (coagulopathy, thrombocytopathy, thrombocytopenia < 100 × 10⁹/L).
- Taking anticoagulants or antiplatelet agents that cannot be temporarily discontinued.
- Presence of active infectious diseases.
- Acute autoimmune diseases.
- Decompensated comorbidities (diabetes mellitus, cardiovascular diseases, etc.).
- Body mass index (BMI) < 18.5 kg/m² (insufficient adipose tissue volume for liposuction).
- Pregnancy or lactation.
- Mental illnesses that prevent informed consent.
- Known allergy to local anesthetics or sodium citrate.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: N / A
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Lipobolus for Breast Defect Reconstruction
|
The intervention is a single surgical procedure using a "lipobolus" - a modified fat graft made from the participant's own tissues to restore breast shape after cancer surgery. How it is prepared during surgery: About 200 mL of fat is harvested from the participant's belly using liposuction. Separately, 60 mL of blood is drawn and spun in a centrifuge to obtain platelet-rich plasma (PRP). The fat, PRP, and calcium chloride are mixed. Calcium chloride activates the PRP, forming a thick, gel-like fibrin scaffold that traps the fat fragments into a single, stable block. How it is used: The lipobolus is placed directly into the cavity left after breast-conserving cancer surgery. This allows for immediate volume restoration in one operation. What makes it different: Standard fat grafting uses fat alone and often requires 2-3 procedures due to unpredictable abs |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Percentage of Lipobolus Volume Retention at 3 Months Post-Radiotherapy
Lasso di tempo: 3 months after completion of radiotherapy
|
Volume of the lipobolus that remains viable and engrafted, measured as a percentage of the originally implanted volume.
The volume is assessed by breast ultrasound (US) performed 3 months after completion of adjuvant external beam radiotherapy (EBRT).
The percentage is calculated as (volume at 3 months post-EBRT / immediate post-operative volume) × 100.
|
3 months after completion of radiotherapy
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Patient Satisfaction with Aesthetic Results Measured by BREAST-Q
Lasso di tempo: Baseline (pre-operatively), 3 months after radiotherapy, 6 months after radiotherapy, 12 months after surgery
|
Change in patient-reported satisfaction and psychosocial well-being assessed using the validated BREAST-Q questionnaire.
Two modules are used: (1) Satisfaction with Breasts module, and (2) Psychosocial Well-being module.
Higher scores indicate better satisfaction and well-being.
|
Baseline (pre-operatively), 3 months after radiotherapy, 6 months after radiotherapy, 12 months after surgery
|
|
Frequency of Locoregional Recurrence and Distant Metastasis
Lasso di tempo: From the date of surgery through 12 months of follow-up (and continuing throughout the study observation period)
|
The cumulative incidence of locoregional recurrence (recurrence of cancer in the ipsilateral breast, chest wall, or regional lymph nodes) and distant metastasis (spread of cancer to distant organs) during the observation period.
Events are confirmed by imaging (mammography, ultrasound, MRI, or CT) and/or biopsy as clinically indicated.
|
From the date of surgery through 12 months of follow-up (and continuing throughout the study observation period)
|
|
Dynamic Changes in Lipobolus Volume Assessed by Ultrasound
Lasso di tempo: 7 days after surgery; 1 month after radiotherapy; 3 months after radiotherapy; then every 3 months through 12 months post-surgery (i.e., at 6, 9, and 12 months after surgery)
|
Change in lipobolus volume over time measured by breast ultrasound.
Volume is calculated at each time point and compared to the immediate post-operative volume.
Data are used to assess the pattern and rate of graft resorption or stability during the first year after surgery.
|
7 days after surgery; 1 month after radiotherapy; 3 months after radiotherapy; then every 3 months through 12 months post-surgery (i.e., at 6, 9, and 12 months after surgery)
|
|
Type and Frequency of Complications
Lasso di tempo: Immediately after the procedure (within 30 days post-surgery) and after completion of radiotherapy (through 12 months of follow-up)
|
The incidence of specific complications occurring after the lipobolus procedure and after radiotherapy.
Complications assessed include: oil cysts, fat necrosis, seroma, hematoma, and infection.
Events are documented by clinical examination and ultrasound imaging and graded according to CTCAE v5.0 where applicable.
|
Immediately after the procedure (within 30 days post-surgery) and after completion of radiotherapy (through 12 months of follow-up)
|
Collaboratori e investigatori
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Effettivo)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 11
- 112025 (Altro identificatore: The Leningrad Regional Clinical Hospital)
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
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 .
Prove cliniche su Cancro al seno
-
Emory UniversityNational Cancer Institute (NCI)RitiratoCancro al seno in stadio IV prognostico AJCC v8 | Neoplasia maligna metastatica nel cervello | Carcinoma mammario metastatico | Anatomic Stage IV Breast Cancer American Joint Committee on Cancer (AJCC) v8
-
Zeba Ahmad, Ph.D.American Cancer Society, Inc.ReclutamentoCaregiving for CancerStati Uniti
-
NRG OncologyNational Cancer Institute (NCI)CompletatoCancro al seno in stadio anatomico IV AJCC v8 | Cancro al seno in stadio IV prognostico AJCC v8 | Neoplasia maligna metastatica nell'osso | Neoplasia maligna metastatica nei linfonodi | Neoplasia maligna metastatica nel fegato | Carcinoma mammario metastatico | Neoplasia maligna metastatica nel... e altre condizioniStati Uniti, Canada, Arabia Saudita, Corea del Sud
-
Tianjin Medical University Cancer Institute and...Guangxi Medical University; Sun Yat-sen University; Chinese PLA General Hospital; The First Affiliated Hospital of Zhengzhou University e altri collaboratoriCompletatoLa guida all'applicazione clinica di Conebeam Breast CTCina
-
M.D. Anderson Cancer CenterNational Cancer Institute (NCI)CompletatoAdenocarcinoma dell'intestino tenue | Adenocarcinoma dell'intestino tenue in stadio III AJCC v8 | Adenocarcinoma dell'intestino tenue in stadio IIIA AJCC v8 | Adenocarcinoma dell'intestino tenue in stadio IIIB AJCC v8 | Adenocarcinoma dell'intestino tenue stadio IV AJCC v8 | Ampolla di Vater... e altre condizioniStati Uniti
-
Georgetown UniversityNational Cancer Institute (NCI); American Cancer Society, Inc.; Susan G. Komen...CompletatoStudio delle donne cinesi che non hanno aderito alle linee guida per lo screening mammografico dell'American Cancer SocietyStati Uniti
-
Institut Cancerologie de l'OuestAttivo, non reclutanteQualità della vita al lavoro | Professionisti paramedici | Toccare Massaggio | Cancer CenterFrancia
-
Yonsei UniversityNon ancora reclutamentoRAS/BRAF Wild-Type Advanced Cancer MathementCorea, Repubblica di
-
Jonsson Comprehensive Cancer CenterReclutamentoAdenocarcinoma prostatico | Cancro alla prostata in stadio II AJCC v8 | Fase I Cancro alla prostata American Joint Committee on Cancer (AJCC) v8Stati Uniti
-
Jonsson Comprehensive Cancer CenterNovartis PharmaceuticalsReclutamentoCarcinoma della prostata | Stadio IVB Cancro alla prostata American Joint Committee on Cancer (AJCC) v8Stati Uniti