Gastrointestinal Stromal Tumor (GIST)NCT05453292
Endoscopic Ultrasound Radiofrequency Ablation for GISTs
A study testing Endoscopic ultrasound guided radiofrequency ablation in people with Gastrointestinal Stromal Tumor (GIST), run by Instituto Ecuatoriano de Enfermedades Digestivas at 1 site in Ecuador.
Trial summary
Nowadays, for the selection of the treatment for gastrointestinal stromal tumors (GISTs), tumor size, prognosis, resectability and stage should be considered. Due to mutations in KIT and platelet-derived growth factor alpha (PDGFRA) in 90% of patients with this mesenchymal tumor, many tyrosine kinase inhibitors are… Read more about this study
- Who is it for?
- Ages 18 to 89 years
- Conditions the study is for
- Gastrointestinal Stromal Tumor (GIST)
- What is being tested?
- Endoscopic ultrasound guided radiofrequency ablation
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteEcuador
- Study dates
- 15 Jan 2024to 15 Sep 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 89 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Adults (> 18 years of age)
- Confirmed resectable GISTs lesions in esophagus, stomach, and intestine (between 2<5 cm or 5-10cm and <5mitotes/HPF)
- Non-amenable to surgery
- written informed consent
- No evidence of metastatic disease on imaging of the chest abdomen and pelvis contrast enhanced computed tomography (CE-CT) or limited liver metastatic disease (maximum 5 lesions <= 3 cm)
- Adequate renal, hepatic, and hematological function
Who cannot join
- Pregnancy
- Rectal GISTs
- Altered renal, hepatic, or hematological function
- Inability to provide informed consent
- Patients with cardiac pacemakers or other implanted electronic devices and/or electrodes
- Patients that have right-to-left shunts, severe pulmonary hypertension (pulmonary artery pressure >90 mmHg), uncontrolled systemic hypertension, and in patients with adult respiratory distress syndrome or any condition that contraindicates the procedure
- Inability to tolerate general anesthesia.
Trial locations and contacts
1 site in 1 country.
Ecuador1 site, 1 recruiting
- Recruiting
Instituto Ecuatoriano de Enfermedades Digestivas (IECED)
Guayaquil, Guayas, 090505
Carlos Robles-Medranda, MD FASGE, +59342109180, carlosoakm@yahoo.es
Hannah Pitanga-Lukashok, MD
About this study
Official title: Feasibility, Safety, and Efficacy of EUS-guided Thermal Radiofrequency Ablation in the Treatment of Gastrointestinal Stromal Tumors
Nowadays, for the selection of the treatment for gastrointestinal stromal tumors (GISTs), tumor size, prognosis, resectability and stage should be considered. Due to mutations in KIT and platelet-derived growth factor alpha (PDGFRA) in 90% of patients with this mesenchymal tumor, many tyrosine kinase inhibitors are used. On the other hand, a resectable tumor is approached by surgery, endoscopic and ablation therapy.
Radiofrequency ablation (RFA) approach has been studied in hepatic GISTs, and hepatic metastases, but its evaluation in esophageal, gastric, and intestinal GISTs is scarce. This study aims to determine the feasibility, safety and efficacy of endoscopic ultrasound (EUS) guided RFA using the 19 G RFA probe developed by Taewong Medical for the treatment of GISTs.
Read the detailed description
Gastrointestinal stromal tumors (GISTs) are the most common malignant mesenchymal tumors of the gastrointestinal tract. GISTs usually appear like subepithelial lesions covered by normal mucosa, arising from the second of fourth layer of the gastrointestinal tract wall. They are variable in size and mostly asymptomatic, but they can present different clinical behavior as bleeding, pain, or obstruction. The tumor size, location and mitotic rate are important prognostic factors. For resectable tumors >2 cm, surgery is the treatment of choice; the management of tumors <2 cm remains debatable because they present unclear clinical significance and low risk of malignancy. Endoscopic treatment, when complete resection it's possible, could be an option to full thickness laparoscopic resection. Moreover, around 90% of GISTs harbour driver mutation in KIT and platelet-derived growth factor alpha (PDGFRA), making the treatment with tyrosine kinase inhibitors (i.e., imatinib, sunitinib and regorafenib) a suitable option for locally advanced and metastatic disease. Nevertheless, the role of local treatment in advanced and metastatic disease is limited, with few retrospective studies suggesting tumor ablation as a therapeutic approach.
According to literature, thermal ablation has been successfully used for local treatment of hepatic metastases from GISTs (as a curative treatment). However, its feasibility and technical success as a local treatment in esophageal, gastric or intestinal GISTs has not been evaluated.
The investigators aimed to determine the feasibility and efficacy of the RFA electrode developed by Taewong Medical for the treatment of resectable GISTs (esophageal, gastric and intestinal lesions) as well as its limited liver metastases in naïve patients or patients with stable disease following systemic therapy with tyrosine kinase inhibitors. The challenge is whether to introduce local ablative therapy as curative or as part of multimodal treatment in patients with GISTs to obtain a curable disease and an increase in overall survival for metastatic patients.
- Conditions
- Gastrointestinal Stromal Tumor (GIST)
- Being tested
- Endoscopic ultrasound guided radiofrequency ablation
- Keywords
- Gastrointestinal stromal tumor, Radiofrequency, Endosonography
- Medical subject headings
- Gastrointestinal Stromal Tumors
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Endoscopic ultrasound guided radiofrequency ablationProcedure or surgery
Patients will be first assessed by DFI-EUS and CE-EUS. Then. EUS guided RFA will be performed using the 19G electrode ablation needle connected to the Starmed radiofrequency generator (Taewong Medical, Seoul, South Korea). After EUS identification of the GIST, a place without interposing vessels will be found by the endosonographer. Puncture of the tumor will be performed directly with the ablation probe inserted through the working channel of the echoendoscope. Time - seconds will depend by the tumor dimension, localization, distance from vital structures (e.g., aorta) and EUS appearance (e.g., hyperechoic). Power will be set at no more than 30W. If the tumor is in contact with vital structures a 10mm safe margin will be kept from these to avoid thermal injury. Multiple applications can be performed in the same or separate session depending on the residual tumor tissue evaluated with DFI-EUSor CE-EUS immediately after procedure.
| Study group | Role | What they receive |
|---|---|---|
| EUS guided RFA | Experimental | This group is comprised by patients with diagnosis of resectable GISTs with/without liver metastasis. The patients included are naïve (without previous treatment) or patients with stable/progressive disease following systemic therapy with tyrosine kinase inhibitors. Receives: Procedure: Endoscopic ultrasound guided radiofrequency ablation |
What is being measured
The primary outcome is the main question the study is designed to answer.
Incidence of adverse events
Incidence of adverse events of EUS guided RFA for GISTs' lesions and metastasis. Data will be summarized as frequencies and relative frequencies.
Measured: up to 6 months
Technical success of RFA of GISTs lesions and metastasis
The technical success will be assessed by completion of ablation on EUS by the time of the procedure, indicated by replacement of the lesion by structural/appearance changes on DFI and CE-EUS Data will be summarized as frequencies.
Measured: up to 2 hours
Disease-free survival
Will be assessed by measuring the proportion of patients demonstrating absence of residual tumor on follow-up. CT- scan and DFI at one, three and six months will be performed to evaluate tumor response to the treatment.
Will be estimated with a Kaplan-Meier estimator and curve. Estimates will be given for specific time points along with 95% confidence intervals.
Measured: up to 6 months
Secondary outcomes (1)
Re-treatment rate
Proportion of patients needing re-treatment for residual tumor in a one-month period after the intervention.
Measured: 1-month
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Jul 2022
- Study start15 Jan 2024 (estimated)
- Primary completion15 Jul 2024 (estimated)
- Study completion15 Sep 2024 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (7)Papers the sponsor has linked to this study.
- Other trials for Gastrointestinal Stromal Tumor (GIST)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- A non-blinded, single center, non-randomized prospective feasibility trial.
- Masking
- None (open label)
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Instituto Ecuatoriano de Enfermedades Digestivas
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Carlos Robles-Medranda, Instituto Ecuatoriano de Enfermedades Digestivas
- Investigators
- Carlos Robles-Medranda, MD FASGE, Principal investigator, Instituto Ecuatoriano de Enfermedades Digestivas (IECED)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05453292
- Sponsor's protocol ID
- IECED-05072022
- Status last verified
- Sep 2023
- First submitted
- 5 Jul 2022
- Last updated
- 28 Sep 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Farag S, Smith MJ, Fotiadis N, Constantinidou A, Jones RL. Revolutions in treatment options in gastrointestinal stromal tumours (GISTs): the latest updates. Curr Treat Options Oncol. 2020 May 27;21(7):55. doi: 10.1007/s11864-020-00754-8.
PubMed 32462367Casali PG, Blay JY, Abecassis N, Bajpai J, Bauer S, Biagini R, Bielack S, Bonvalot S, Boukovinas I, Bovee JVMG, Boye K, Brodowicz T, Buonadonna A, De Alava E, Dei Tos AP, Del Muro XG, Dufresne A, Eriksson M, Fedenko A, Ferraresi V, Ferrari A, Frezza AM, Gasperoni S, Gelderblom H, Gouin F, Grignani G, Haas R, Hassan AB, Hindi N, Hohenberger P, Joensuu H, Jones RL, Jungels C, Jutte P, Kasper B, Kawai A, Kopeckova K, Krakorova DA, Le Cesne A, Le Grange F, Legius E, Leithner A, Lopez-Pousa A, Martin-Broto J, Merimsky O, Messiou C, Miah AB, Mir O, Montemurro M, Morosi C, Palmerini E, Pantaleo MA, Piana R, Piperno-Neumann S, Reichardt P, Rutkowski P, Safwat AA, Sangalli C, Sbaraglia M, Scheipl S, Schoffski P, Sleijfer S, Strauss D, Strauss SJ, Hall KS, Trama A, Unk M, van de Sande MAJ, van der Graaf WTA, van Houdt WJ, Frebourg T, Gronchi A, Stacchiotti S; ESMO Guidelines Committee, EURACAN and GENTURIS. Electronic address: clinicalguidelines@esmo.org. Gastrointestinal stromal tumours: ESMO-EURACAN-GENTURIS Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2022 Jan;33(1):20-33. doi: 10.1016/j.annonc.2021.09.005. Epub 2021 Sep 21. No abstract available.
PubMed 34560242Yamashita Y, Yoshikawa T, Kawaji Y, Tamura T, Hatamaru K, Itonaga M, Ida Y, Maekita T, Iguchi M, Murata SI, Kitano M. Novel endoscopic ultrasonography imaging technique for visualizing microcirculation without contrast enhancement in subepithelial lesions: Prospective study. Dig Endosc. 2021 Sep;33(6):955-961. doi: 10.1111/den.13889. Epub 2020 Dec 23.
PubMed 33145842Yamashita Y, Yoshikawa T, Yamazaki H, Kawaji Y, Tamura T, Hatamaru K, Itonaga M, Ashida R, Ida Y, Maekita T, Iguchi M, Kitano M. A Novel Endoscopic Ultrasonography Imaging Technique for Depicting Microcirculation in Pancreatobiliary Lesions without the Need for Contrast-Enhancement: A Prospective Exploratory Study. Diagnostics (Basel). 2021 Oct 30;11(11):2018. doi: 10.3390/diagnostics11112018.
PubMed 34829364Granata V, Grassi R, Fusco R, Setola SV, Palaia R, Belli A, Miele V, Brunese L, Grassi R, Petrillo A, Izzo F. Assessment of Ablation Therapy in Pancreatic Cancer: The Radiologist's Challenge. Front Oncol. 2020 Nov 27;10:560952. doi: 10.3389/fonc.2020.560952. eCollection 2020.
PubMed 33330028Robles-Medranda C, Arevalo-Mora M, Oleas R, Alcivar-Vasquez J, Del Valle R. Novel EUS-guided microwave ablation of an unresectable pancreatic neuroendocrine tumor. VideoGIE. 2022 Jan 19;7(2):74-76. doi: 10.1016/j.vgie.2021.10.009. eCollection 2022 Feb.
PubMed 35146230Yamanaka T, Takaki H, Nakatsuka A, Uraki J, Fujimori M, Hasegawa T, Sakuma H, Yamakado K. Radiofrequency ablation for liver metastasis from gastrointestinal stromal tumor. J Vasc Interv Radiol. 2013 Mar;24(3):341-6. doi: 10.1016/j.jvir.2012.11.021. Epub 2013 Jan 24.
PubMed 23352855
Study at a glance
From the registry record, last updated by the sponsor on 28 Sep 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Feasibility, Safety, and Efficacy of EUS-guided Thermal Radiofrequency Ablation in the Treatment of Gastrointestinal Stromal Tumors
- ClinicalTrials.gov ID
- NCT05453292
- Acronym / sponsor ID
- IECED-05072022
- Conditions
- Gastrointestinal Stromal Tumor (GIST)
- Keywords
- Gastrointestinal stromal tumor, Radiofrequency, Endosonography
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- Instituto Ecuatoriano de Enfermedades DigestivasUniversity, hospital or other
- Study start
- 15 Jan 2024 (estimated)
- Primary completion
- 15 Jul 2024 (estimated)
- Study completion
- 15 Sep 2024 (estimated)
- First posted
- 12 Jul 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Nowadays, for the selection of the treatment for gastrointestinal stromal tumors (GISTs), tumor size, prognosis, resectability and stage should be considered. Due to mutations in KIT and platelet-derived growth factor alpha (PDGFRA) in 90% of patients with this mesenchymal tumor, many tyrosine kinase inhibitors are used. On the other hand, a resectable tumor is approached by surgery, endoscopic and ablation therapy.
Radiofrequency ablation (RFA) approach has been studied in hepatic GISTs, and hepatic metastases, but its evaluation in esophageal, gastric, and intestinal GISTs is scarce. This study aims to determine the feasibility, safety and efficacy of endoscopic ultrasound (EUS) guided RFA using the 19 G RFA probe developed by Taewong Medical for the treatment of GISTs.
Detailed description
Gastrointestinal stromal tumors (GISTs) are the most common malignant mesenchymal tumors of the gastrointestinal tract. GISTs usually appear like subepithelial lesions covered by normal mucosa, arising from the second of fourth layer of the gastrointestinal tract wall. They are variable in size and mostly asymptomatic, but they can present different clinical behavior as bleeding, pain, or obstruction. The tumor size, location and mitotic rate are important prognostic factors. For resectable tumors >2 cm, surgery is the treatment of choice; the management of tumors <2 cm remains debatable because they present unclear clinical significance and low risk of malignancy. Endoscopic treatment, when complete resection it's possible, could be an option to full thickness laparoscopic resection. Moreover, around 90% of GISTs harbour driver mutation in KIT and platelet-derived growth factor alpha (PDGFRA), making the treatment with tyrosine kinase inhibitors (i.e., imatinib, sunitinib and regorafenib) a suitable option for locally advanced and metastatic disease. Nevertheless, the role of local treatment in advanced and metastatic disease is limited, with few retrospective studies suggesting tumor ablation as a therapeutic approach.
According to literature, thermal ablation has been successfully used for local treatment of hepatic metastases from GISTs (as a curative treatment). However, its feasibility and technical success as a local treatment in esophageal, gastric or intestinal GISTs has not been evaluated.
The investigators aimed to determine the feasibility and efficacy of the RFA electrode developed by Taewong Medical for the treatment of resectable GISTs (esophageal, gastric and intestinal lesions) as well as its limited liver metastases in naïve patients or patients with stable disease following systemic therapy with tyrosine kinase inhibitors. The challenge is whether to introduce local ablative therapy as curative or as part of multimodal treatment in patients with GISTs to obtain a curable disease and an increase in overall survival for metastatic patients.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- A non-blinded, single center, non-randomized prospective feasibility trial.
| Arm | Type | Receives |
|---|---|---|
| EUS guided RFA | Experimental | Procedure: Endoscopic ultrasound guided radiofrequency ablationThis group is comprised by patients with diagnosis of resectable GISTs with/without liver metastasis. The patients included are naïve (without previous treatment) or patients with stable/progressive disease following systemic therapy with tyrosine kinase inhibitors. |
Who may qualify
- Ages
- 18 to 89 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Adults (> 18 years of age)
- Confirmed resectable GISTs lesions in esophagus, stomach, and intestine (between 2<5 cm or 5-10cm and <5mitotes/HPF)
- Non-amenable to surgery
- written informed consent
- No evidence of metastatic disease on imaging of the chest abdomen and pelvis contrast enhanced computed tomography (CE-CT) or limited liver metastatic disease (maximum 5 lesions <= 3 cm)
Key exclusion criteria (7 listed)
- Pregnancy
- Rectal GISTs
- Altered renal, hepatic, or hematological function
- Inability to provide informed consent
- Patients with cardiac pacemakers or other implanted electronic devices and/or electrodes
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Endoscopic ultrasound guided radiofrequency ablationPatients will be first assessed by DFI-EUS and CE-EUS. Then. EUS guided RFA will be performed using the 19G electrode ablation needle connected to the Starmed radiofrequency generator (Taewong Medical, Seoul, South Korea). After EUS identification of the GIST, a place without interposing vessels will be found by the endosonographer. Puncture of the tumor will be performed directly with the ablation probe inserted through the working channel of the echoendoscope. Time - seconds will depend by the tumor dimension, localization, distance from vital structures (e.g., aorta) and EUS appearance (e.g., hyperechoic). Power will be set at no more than 30W. If the tumor is in contact with vital structures a 10mm safe margin will be kept from these to avoid thermal injury. Multiple applications can be performed in the same or separate session depending on the residual tumor tissue evaluated with DFI-EUSor CE-EUS immediately after procedure. | Procedure or surgery | EUS guided RFA |
Primary outcome
Incidence of adverse events
Time frame: up to 6 months
Incidence of adverse events of EUS guided RFA for GISTs' lesions and metastasis. Data will be summarized as frequencies and relative frequencies.
Technical success of RFA of GISTs lesions and metastasis
Time frame: up to 2 hours
The technical success will be assessed by completion of ablation on EUS by the time of the procedure, indicated by replacement of the lesion by structural/appearance changes on DFI and CE-EUS Data will be summarized as frequencies.
Disease-free survival
Time frame: up to 6 months
Will be assessed by measuring the proportion of patients demonstrating absence of residual tumor on follow-up. CT- scan and DFI at one, three and six months will be performed to evaluate tumor response to the treatment. Will be estimated with a Kaplan-Meier estimator and curve. Estimates will be given for specific time points along with 95% confidence intervals.
1 secondary outcome
Re-treatment rate
Time frame: 1-month
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Sep 2023.
- Background: PubMed 32462367Farag S, Smith MJ, Fotiadis N, Constantinidou A, Jones RL. Revolutions in treatment options in gastrointestinal stromal tumours (GISTs): the latest updates. Curr Treat Options Oncol. 2020 May 27;21(7):55. doi: 10.1007/s11864-020-00754-8.
- Background: PubMed 34560242Casali PG, Blay JY, Abecassis N, Bajpai J, Bauer S, Biagini R, Bielack S, Bonvalot S, Boukovinas I, Bovee JVMG, Boye K, Brodowicz T, Buonadonna A, De Alava E, Dei Tos AP, Del Muro XG, Dufresne A, Eriksson M, Fedenko A, Ferraresi V, Ferrari A, Frezza AM, Gasperoni S, Gelderblom H, Gouin F, Grignani G, Haas R, Hassan AB, Hindi N, Hohenberger P, Joensuu H, Jones RL, Jungels C, Jutte P, Kasper B, Kawai A, Kopeckova K, Krakorova DA, Le Cesne A, Le Grange F, Legius E, Leithner A, Lopez-Pousa A, Martin-Broto J, Merimsky O, Messiou C, Miah AB, Mir O, Montemurro M, Morosi C, Palmerini E, Pantaleo MA, Piana R, Piperno-Neumann S, Reichardt P, Rutkowski P, Safwat AA, Sangalli C, Sbaraglia M, Scheipl S, Schoffski P, Sleijfer S, Strauss D, Strauss SJ, Hall KS, Trama A, Unk M, van de Sande MAJ, van der Graaf WTA, van Houdt WJ, Frebourg T, Gronchi A, Stacchiotti S; ESMO Guidelines Committee, EURACAN and GENTURIS. Electronic address: clinicalguidelines@esmo.org. Gastrointestinal stromal tumours: ESMO-EURACAN-GENTURIS Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2022 Jan;33(1):20-33. doi: 10.1016/j.annonc.2021.09.005. Epub 2021 Sep 21. No abstract available.
- Background: PubMed 33145842Yamashita Y, Yoshikawa T, Kawaji Y, Tamura T, Hatamaru K, Itonaga M, Ida Y, Maekita T, Iguchi M, Murata SI, Kitano M. Novel endoscopic ultrasonography imaging technique for visualizing microcirculation without contrast enhancement in subepithelial lesions: Prospective study. Dig Endosc. 2021 Sep;33(6):955-961. doi: 10.1111/den.13889. Epub 2020 Dec 23.
- Background: PubMed 34829364Yamashita Y, Yoshikawa T, Yamazaki H, Kawaji Y, Tamura T, Hatamaru K, Itonaga M, Ashida R, Ida Y, Maekita T, Iguchi M, Kitano M. A Novel Endoscopic Ultrasonography Imaging Technique for Depicting Microcirculation in Pancreatobiliary Lesions without the Need for Contrast-Enhancement: A Prospective Exploratory Study. Diagnostics (Basel). 2021 Oct 30;11(11):2018. doi: 10.3390/diagnostics11112018.
- Background: PubMed 33330028Granata V, Grassi R, Fusco R, Setola SV, Palaia R, Belli A, Miele V, Brunese L, Grassi R, Petrillo A, Izzo F. Assessment of Ablation Therapy in Pancreatic Cancer: The Radiologist's Challenge. Front Oncol. 2020 Nov 27;10:560952. doi: 10.3389/fonc.2020.560952. eCollection 2020.
- Background: PubMed 35146230Robles-Medranda C, Arevalo-Mora M, Oleas R, Alcivar-Vasquez J, Del Valle R. Novel EUS-guided microwave ablation of an unresectable pancreatic neuroendocrine tumor. VideoGIE. 2022 Jan 19;7(2):74-76. doi: 10.1016/j.vgie.2021.10.009. eCollection 2022 Feb.
- Background: PubMed 23352855Yamanaka T, Takaki H, Nakatsuka A, Uraki J, Fujimori M, Hasegawa T, Sakuma H, Yamakado K. Radiofrequency ablation for liver metastasis from gastrointestinal stromal tumor. J Vasc Interv Radiol. 2013 Mar;24(3):341-6. doi: 10.1016/j.jvir.2012.11.021. Epub 2013 Jan 24.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Carlos Robles-Medranda, MD FASGE principal investigator
Instituto Ecuatoriano de Enfermedades Digestivas (IECED)
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Endoscopic ultrasound guided radiofrequency ablation in people with Gastrointestinal Stromal Tumor (GIST), run by Instituto Ecuatoriano de Enfermedades Digestivas at 1 site in Ecuador.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 28 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Ecuador. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Carlos Robles-Medranda, MD FASGE (+59342109180, carlosoakm@yahoo.es), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Incidence of adverse events (time frame: up to 6 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05453292, which also lists 7 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Sep 2023.