An observational study in Lung Cancer, sponsored by Intuitive Surgical. Recruiting at 13 sites in 7 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-14.
Sponsored by Intuitive Surgical · Observational
To compare outcomes of minimally invasive surgical techniques for the treatment of early-stage non-small cell lung cancer.
Detection of lung cancer is occurring at increasingly earlier stages due to improved screening and the discovery of incidental nodules. Coinciding with this trend is recent data from two international randomized, control trials, RAVAL - (Robotic Lobectomy vs. Thoracoscopic Lobectomy for Early Stage Lung Cancer) and, JCOG0802 (The Japan Clinical Oncology Group) that show oncologic outcomes from segmentectomy are equivalent to lobectomy for cancers ≤2 cm. However, segmentectomy is a more complex technical operation that may not be easily feasible using video assisted thoracic surgery (VATS) but could be facilitated by robotic-assisted thoracic surgery (RATS), allowing improved vision, precision and controlled anatomic dissection.
The LARCS study is designed to understand the perioperative outcomes of patients and identify the real-world selection process of either VATS and RATS segmentectomy and lobectomy for lung cancers ≤2 cm. It aims to generate evidence to support integration of patient-centered care using minimally invasive technology.
In addition, health related quality of life captured in the study will also provide valuable insight into time to recovery, determining burden of the disease, and guide future treatment strategy.
5,422 studies on the registry are indexed under Lung Neoplasms; 1,346 are open to participants now.
This study's planned enrollment of 600 is above the median of 200 across 1,434 observational studies indexed under Lung Neoplasms.
Browse Lung Neoplasms studies →Intuitive Surgical is the lead sponsor of 62 studies on the registry; 6 are open to participants now.
Of its 7 completed or terminated interventional studies of FDA-regulated products, 1 (14%) have results posted.
Counted across the registry records on this site, refreshed daily.
Data from adult participants who have a lobectomy or segmentectomy for treatment of non small cell lung cancer (clinical stages IA1-2) will be collected.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants will undergo robotic assisted thoracic surgery (RATS) for segmentectomy or lobectomy.
Procedure: Robotic Assisted Thoracic Surgery
Participants will undergo video assisted thoracic surgery (VATS) for segmentectomy or lobectomy.
Procedure: Video Assisted Thoracic Surgery
Surgeons will pre-determine to perform a segmentectomy or lobectomy using RATS.
Surgeons will pre-determine to perform a segmentectomy or lobectomy using VATS.
Patient reported Quality of Life 1
EQ 5D 5L (European Quality of Life Five Dimension) The EQ-5D-5L is a validated and established generic Patient Reported Outcome (PRO) instrument that uses 6 questions to assess patients' quality of life. It includes a vertical EQ visual analog scale (EQ VAS, 0-100 points) and a descriptive EQ-5D-5L system. An algorithm is used to calculate the scores. For the descriptive section of the scale, an index value of 1 represents the best possible health state, while an index value of \<0 (variable) represents the worst possible health state. The EQ VAS score is rated on a scale of 0-100 points. 0 points correspond to the worst possible health status, while 100 points correspond to the best possible health status.
Time frame: 1 month post surgery
Patient reported Quality of Life 2
RNLI (Reintegration to Normal Living Index) The RNLI has 11 questions and is scored on a visual analogue scale (VAS). On one end: "does not describe my situation" (1 or minimal integration) and "fully describes my situation" (10 or complete integration). Individual item scores are summed to provide the total score. The higher the score, the better the patients perceived integration.
Time frame: 1 month post surgery
Number of conversions from pre-operative surgical plan
Number of participants who undergo conversion surgery from the pre-operative surgical plan captured on the surgical decision making form. Conversion may be from segmentectomy to lobetomy, RATS or VATS to open surgery.
Time frame: immediately post operative
Plan to share: No
Started Jul 2023 (actual). Primary completion is estimated for Dec 2027, 53 months after the start.
Of 90 industry-sponsored observational studies under Lung Neoplasms, half reached primary completion within 48 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 58. This study's planned 53 months is above that.
Counting every sponsor, half of 681 studies reached it within 57 months; a quarter within 25 and three quarters within 135.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.