Sleeve GastrectomySPARCSNCT06671639
Stanford Program to Accelerate Robotic Children's Surgery
A study testing da Vinci Xi Robotic Surgery System in people with Sleeve Gastrectomy and Cholecystectomy, run by Stanford University at 1 site in United States.
Trial summary
The goal of this clinical trial is to provide additional data to confirm safety and performance of the da Vinci Xi Surgical System in a human clinical setting. This pilot study is intended to provide an initial assessment to evaluate the feasibility, safety, and effectiveness for the utilization of the da Vinci Xi on… Read more about this study
- Who is it for?
- Ages 6 to 21 years
- Conditions the study is for
- Sleeve Gastrectomy, Cholecystectomy, Splenectomy
- What is being tested?
- da Vinci Xi Robotic Surgery System
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 250 participants
- Where
- 1 siteUnited States
- Study dates
- 1 Aug 2025to 28 Feb 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 6 to 21 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Subject is between 6 - 21 years of age (weighing at least 15 kilograms)
- Subject clinically diagnosed with a medical condition for which one of the study procedures is appropriate therapy and selected as the treatment of choice by the guardian and surgeon.
- Subject without previous treatment using a robotic surgery device
- Subject or their guardian is willing and able to provide written informed consent
- Subject or their guardian is willing and able to comply with the study protocol requirements
Who cannot join
- Subject with uncorrected coagulopathy
- Subject has clinical requirement for primary open operative procedure
- Subject is ASA 4 or 5 status
- Subject is contraindicated for general anesthesia or surgery
- Subject is mentally handicapped or has a psychological disorder or severe systemic illness that would preclude compliance with study requirements or ability to provide informed consent
- Subject is pregnant or suspected to be pregnant
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
Lucile Packard Children's Hospital Stanford
Stanford, California, 94305
Grant Wells, MS, 65-714-4344, gwells2@stanford.edu
Natalie Lui, MD, MAS
About this study
The goal of this clinical trial is to provide additional data to confirm safety and performance of the da Vinci Xi Surgical System in a human clinical setting. This pilot study is intended to provide an initial assessment to evaluate the feasibility, safety, and effectiveness for the utilization of the da Vinci Xi on pediatric and adolescent patients. This clinical trial will be conducted under the auspices of Stanford University's IRB approval.
Read the detailed description
Advancements in robotic technology have facilitated the expansion of pediatric robotic surgery, enabling surgeons to perform increasingly complex procedures with greater precision and efficiency. Improved robotic platforms, enhanced imaging modalities, and innovative surgical techniques have contributed to the evolution of pediatric robotic surgery. Moreover, the development of specialized instruments and accessories tailored to pediatric patients, while in limited fashion, has further enhanced the safety and feasibility of robotic-assisted procedures in this population.
The objective of this clinical study is to provide preliminary evidence showcasing that the da Vinci Xi Surgical System is substantially equivalent to existing surgical techniques for the performance of procedures that are the subject of this clinical study. The study will feature two sequential arms with a companion registry of non-robotic participants to compare outcomes and quality of life between each robotic approach and standard of care. The procedures included in each arm are:
- Arm 1: Sleeve Gastrectomy, Cholecystectomy, Splenectomy, Hysterectomy, endometriosis, ureteral re-implant, and cervical and thoracic tracheoplasty, thymectomy, lobectomy/wedge lung resection, lung segmentectomy
- Arm 2: Bronchoplasty, Endoscopic Laryngeal/Pharyngeal Suturing, including: Vocal Feminization, Laryngeal Cleft Repair, Endolaryngeal Adjacent Tissue Transfer, Pharyngoplasty; Ileocolonic Resections; Laryngoplasty with or without Graft; Proctectomy with Ileal Pouch-Anal Anastomosis (IPAA)
- Registry: The registry will recruit patients undergoing the procedures performed in Arm 1 and 2 who will be treated with current standard of care techniques instead of robotic surgery.
Patient enrollment and assessments associated with procedures identified in Arm 1 will be completed prior to any procedures to be performed in Arm 2. The registry will prospectively enroll and evaluate patients undergoing non-surgical procedures at any time during the study period.
Participants will be evaluated from the first pre-operative assessment to 7 weeks post-operative.
- Conditions
- Sleeve Gastrectomy, Cholecystectomy, Splenectomy, Hysterectomy, Endometriosis, Ureteral Re-implant
- Being tested
- da Vinci Xi Robotic Surgery System
- Keywords
- Robotic Surgery, Pediatric Robotic Surgery
- Medical subject headings
- Endometriosis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
da Vinci Xi Robotic Surgery SystemDevice
The da Vinci Xi Surgical System is a software-controlled, electro-mechanical system designed for surgeons to perform minimally invasive surgery. It consists of a Surgeon Console, a Patient Cart, and a Vision Cart, and is used with a Camera Instrument and EndoWrist Xi instruments and accessories.
The surgeon seated at the surgeon console controls all movement of the EndoWrist Xi instruments and Camera Instrument using two master controls and a set of foot pedals. The surgeon views the three-dimensional endoscopic image on a high-resolution stereo viewer (3D viewer), which provides him/her/they a view of patient anatomy and instrumentation, along with icons and other user interface features. The Vision Cart includes the supporting electronic and video processing equipment for the system.
| Study group | Role | What they receive |
|---|---|---|
| Arm 1 | Experimental | Arm 1 includes procedures to be performed robotically that have an adult model or already established preclinical evidence including: Sleeve Gastrectomy, Cholecystectomy, Splenectomy, Hysterectomy, endometriosis, ureteral re-implant, and cervical and thoracic tracheoplasty, thymectomy, lobectomy/wedge lung resection, lung segmentectomy Receives: Device: da Vinci Xi Robotic Surgery System |
| Arm 2 | Experimental | Arm 2 will be performed after all patients in Arm 1 have completed their procedures and where additional preclinical performance testing is required, including: Bronchoplasty, Endoscopic Laryngeal/Pharyngeal Suturing, including: Vocal Feminization, Laryngeal Cleft Repair, Endolaryngeal Adjacent Tissue Transfer, Pharyngoplasty; Ileocolonic Resections; Laryngoplasty with or without Graft; Proctectomy with Ileal Pouch-Anal Anastomosis (IPAA) Receives: Device: da Vinci Xi Robotic Surgery System |
What is being measured
The primary outcome is the main question the study is designed to answer.
Performance
Performance defined as the conversion to an open approach required to complete the procedure
Measured: Intraoperative
Number of Subjects With Device-related Serious Adverse Events
Safety is determined by measuring the number of subjects that experience device-related serious adverse events
Measured: Intraoperative
Secondary outcomes (1)
Pediatric Quality of Life Inventory (PedsQL) score
Score of questionnaire
Measured: From enrollment to the end of treatment follow-up at 7 weeks post-operative
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Nov 2024
- Study start1 Aug 2025
- Primary completion28 Feb 2027 (estimated)
- Study completion28 Feb 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Sleeve GastrectomyStudies of the same condition, open and under way.
- More trials run by Stanford UniversityThe sponsor's other registered studies.
- 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
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 250 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Stanford University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Karthik Balakrishnan, Stanford University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06671639
- Sponsor's protocol ID
- 78052
- Acronym
- SPARCS
- Status last verified
- Apr 2026
- First submitted
- 31 Oct 2024
- Last updated
- 30 Apr 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 30 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Stanford Program to Accelerate Robotic Children's Surgery
- ClinicalTrials.gov ID
- NCT06671639
- Acronym / sponsor ID
- SPARCS / 78052
- Conditions
- Sleeve Gastrectomy, Cholecystectomy, Splenectomy, Hysterectomy, Endometriosis, Ureteral Re-implant
- Keywords
- Robotic Surgery, Pediatric Robotic Surgery
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 250 participants (estimated)
- Lead sponsor
- Stanford UniversityUniversity, hospital or other
- Study start
- 1 Aug 2025 (actual)
- Primary completion
- 28 Feb 2027 (estimated)
- Study completion
- 28 Feb 2028 (estimated)
- First posted
- 4 Nov 2024 (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.
The goal of this clinical trial is to provide additional data to confirm safety and performance of the da Vinci Xi Surgical System in a human clinical setting. This pilot study is intended to provide an initial assessment to evaluate the feasibility, safety, and effectiveness for the utilization of the da Vinci Xi on pediatric and adolescent patients. This clinical trial will be conducted under the auspices of Stanford University's IRB approval.
Detailed description
Advancements in robotic technology have facilitated the expansion of pediatric robotic surgery, enabling surgeons to perform increasingly complex procedures with greater precision and efficiency. Improved robotic platforms, enhanced imaging modalities, and innovative surgical techniques have contributed to the evolution of pediatric robotic surgery. Moreover, the development of specialized instruments and accessories tailored to pediatric patients, while in limited fashion, has further enhanced the safety and feasibility of robotic-assisted procedures in this population.
The objective of this clinical study is to provide preliminary evidence showcasing that the da Vinci Xi Surgical System is substantially equivalent to existing surgical techniques for the performance of procedures that are the subject of this clinical study. The study will feature two sequential arms with a companion registry of non-robotic participants to compare outcomes and quality of life between each robotic approach and standard of care. The procedures included in each arm are:
- Arm 1: Sleeve Gastrectomy, Cholecystectomy, Splenectomy, Hysterectomy, endometriosis, ureteral re-implant, and cervical and thoracic tracheoplasty, thymectomy, lobectomy/wedge lung resection, lung segmentectomy
- Arm 2: Bronchoplasty, Endoscopic Laryngeal/Pharyngeal Suturing, including: Vocal Feminization, Laryngeal Cleft Repair, Endolaryngeal Adjacent Tissue Transfer, Pharyngoplasty; Ileocolonic Resections; Laryngoplasty with or without Graft; Proctectomy with Ileal Pouch-Anal Anastomosis (IPAA)
- Registry: The registry will recruit patients undergoing the procedures performed in Arm 1 and 2 who will be treated with current standard of care techniques instead of robotic surgery.
Patient enrollment and assessments associated with procedures identified in Arm 1 will be completed prior to any procedures to be performed in Arm 2. The registry will prospectively enroll and evaluate patients undergoing non-surgical procedures at any time during the study period.
Participants will be evaluated from the first pre-operative assessment to 7 weeks post-operative.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Arm 1 | Experimental | Device: da Vinci Xi Robotic Surgery SystemArm 1 includes procedures to be performed robotically that have an adult model or already established preclinical evidence including: Sleeve Gastrectomy, Cholecystectomy, Splenectomy, Hysterectomy, endometriosis, ureteral re-implant, and cervical and thoracic tracheoplasty, thymectomy, lobectomy/wedge lung resection, lung segmentectomy |
| Arm 2 | Experimental | Device: da Vinci Xi Robotic Surgery SystemArm 2 will be performed after all patients in Arm 1 have completed their procedures and where additional preclinical performance testing is required, including: Bronchoplasty, Endoscopic Laryngeal/Pharyngeal Suturing, including: Vocal Feminization, Laryngeal Cleft Repair, Endolaryngeal Adjacent Tissue Transfer, Pharyngoplasty; Ileocolonic Resections; Laryngoplasty with or without Graft; Proctectomy with Ileal Pouch-Anal Anastomosis (IPAA) |
Who may qualify
- Ages
- 6 to 21 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (5 listed)
- Subject is between 6 - 21 years of age (weighing at least 15 kilograms)
- Subject clinically diagnosed with a medical condition for which one of the study procedures is appropriate therapy and selected as the treatment of choice by the guardian and surgeon.
- Subject without previous treatment using a robotic surgery device
- Subject or their guardian is willing and able to provide written informed consent
- Subject or their guardian is willing and able to comply with the study protocol requirements
Key exclusion criteria (6 listed)
- Subject with uncorrected coagulopathy
- Subject has clinical requirement for primary open operative procedure
- Subject is ASA 4 or 5 status
- Subject is contraindicated for general anesthesia or surgery
- Subject is mentally handicapped or has a psychological disorder or severe systemic illness that would preclude compliance with study requirements or ability to provide informed consent
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 |
|---|---|---|
| da Vinci Xi Robotic Surgery SystemThe da Vinci Xi Surgical System is a software-controlled, electro-mechanical system designed for surgeons to perform minimally invasive surgery. It consists of a Surgeon Console, a Patient Cart, and a Vision Cart, and is used with a Camera Instrument and EndoWrist Xi instruments and accessories. The surgeon seated at the surgeon console controls all movement of the EndoWrist Xi instruments and Camera Instrument using two master controls and a set of foot pedals. The surgeon views the three-dimensional endoscopic image on a high-resolution stereo viewer (3D viewer), which provides him/her/they a view of patient anatomy and instrumentation, along with icons and other user interface features. The Vision Cart includes the supporting electronic and video processing equipment for the system. | Device | Arm 1, Arm 2 |
Primary outcome
Performance
Time frame: Intraoperative
Performance defined as the conversion to an open approach required to complete the procedure
Number of Subjects With Device-related Serious Adverse Events
Time frame: Intraoperative
Safety is determined by measuring the number of subjects that experience device-related serious adverse events
1 secondary outcome
Pediatric Quality of Life Inventory (PedsQL) score
Time frame: From enrollment to the end of treatment follow-up at 7 weeks post-operative
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Apr 2026.
- Individual participant dataSharing planned: Undecided
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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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing da Vinci Xi Robotic Surgery System in people with Sleeve Gastrectomy and Cholecystectomy, run by Stanford University at 1 site in United States.
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 5 inclusion and 6 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: looking for participants now, as of the sponsor's last update on 30 Apr 2026. 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 United States. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Karthik Balakrishnan, MD, MPH, FAAP, FACS ((650) 724-4800, kbala@stanford.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Performance (time frame: Intraoperative). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 30 Apr 2026.