Clinical trials
Postoperative clinical trials
Below are recruiting postoperative clinical trials, each written for real people, not researchers. We’re tracking 1,431 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04134702Recruiting
Acupuncture for less pain after outpatient knee surgery
This study tests whether acupuncture can reduce pain after outpatient arthroscopic knee surgery done under general anesthesia. It may help by improving pain control while avoiding certain medicine side effects, but you must meet several specific safety and medication limits.
Greifswald, VorpommernAges 19–55 - NCT04144972Recruiting
Closed-loop deep brain stimulation for long-lasting nerve pain
This trial tests a “smart” deep brain stimulation device that senses your brain signals and adjusts treatment to reduce severe, long-lasting pain. It may help people whose pain has not improved with multiple pain medicines and surgery cannot fix the cause.
San Francisco, CaliforniaAges 22–80 - NCT04147078RecruitingPhase 1
Personalized immune vaccine after surgery for certain cancers
This Phase 1 study tests a personalized vaccine made for you to help your immune system after you’ve had surgery or ablation for certain cancers. It’s mainly done to check safety and see how well the vaccine can work at preventing cancer from coming back.
Chengdu, SichuanAges 18–100 - NCT04164173Recruiting
Breathing therapies after heart surgery for lung overinflation
This study looks at breathing (respiratory) therapies to help after certain heart surgeries that can cause the lungs to feel overly inflated. If you’re eligible, you may receive and be assessed for how well these breathing treatments work during your recovery.
Dallas, TexasAges 18–80 - NCT04209218Recruiting
Blood pressure and dexamethasone during lung cancer surgery
This study looks at how best to manage blood pressure during lung cancer surgery and whether giving dexamethasone (a steroid medicine) helps patients during the operation and recovery. You might benefit if you’re having longer lung cancer surgery and your heart and other organs are stable enough for the study.
Beijing, Beijing MunicipalityAges 50–90 - NCT04219956Recruiting
Low-sugar diet aims to reduce belly-surgery pain
This study tests whether a special diet low in polyamines (a food-related substance) can reduce pain after major abdominal surgery. It compares pain control while you use a patient-controlled morphine pump or take opioid tablets by mouth after surgery.
BrestAges 18 years+ - NCT04249154RecruitingPhase 2
After prostate surgery, test radiation plus hormone shots
This trial studies whether giving a shorter-course radiation plan after prostate surgery, along with hormone shots (LHRH), can improve outcomes for people with higher-risk prostate cancer. You may be eligible if your PSA (a blood marker) is either still low but high-risk by pathology, or it has started to rise again after surgery.
Montreal, QuebecAges 18 years+ - NCT04256798RecruitingPhase 3
Respiratory care after high-risk abdominal surgery
This trial looks at a breathing-focused care plan given around the time of major abdominal surgery to improve recovery and outcomes. You may be eligible if you’re having a large midline abdominal incision and can be followed after surgery.
Botucatu, São PauloAges 10–100 - NCT04261244RecruitingPhase 3
Neoadjuvant radiation study for one-sided breast cancer
This Phase 3 study tests a specific plan that combines chemotherapy (and sometimes targeted medicines) with radiation before surgery for one breast. It may help shrink breast cancer and improve treatment timing, based on how well tumors respond.
AhausAges 18 years+ - NCT04303325RecruitingPhase 4
Esketamine after breast surgery for depression and gut changes
This trial studies whether esketamine given around the time of breast cancer surgery can improve depression and change gut bacteria. It also monitors your sleep/deep anesthesia level (with a simple monitoring number).
Shenyang, LiaoningAges 18–65 - NCT04439552Recruiting
MRI study during cornea cross-linking for keratoconus
This trial uses an MRI scan (and a close-up eye scan) to study what happens in the cornea during treatment for keratoconus. It may help doctors better understand how treatment works and who benefits most.
Boston, MassachusettsAges 8–35 - NCT04495088RecruitingPhase 3
Before vs after chemotherapy for locally advanced rectal cancer
This Phase 3 study compares giving chemotherapy before rectal surgery versus giving it after surgery, using a tailored plan based on your risk. The goal is to see which timing helps more people with locally advanced rectal cancer stay cancer-free and live longer.
MannheimAges 18 years+ - NCT04576078RecruitingPhase 2
Nefopam for less pain after knee replacement surgery
This Phase 2 study tests whether oral nefopam can reduce pain after total knee replacement done with spinal anesthesia. It looks at whether this medicine works better than the usual post-surgery pain plan and how safely it can be used.
Lyon, LyonAges 18–75 - NCT04577690RecruitingPhase 4
PECS pain study for children getting a chest device implanted
This trial tests a pain-control method (PECS) during surgery for children who are having a small chest device implanted. It may help reduce discomfort during and after the operation.
Toronto, OntarioAges 3–18 - NCT04600089RecruitingPhase 2
Ketamine during aortic surgery to help prevent spinal nerve injury
This Phase 2 study tests whether ketamine, given during a specific type of major aortic surgery, can help prevent spinal “nerve injury” (called spinal prophylaxis). You might be considered because your planned surgery and current plan for spinal protection match the trial’s needs.
Lexington, KentuckyAges 18–90 - NCT04637438Recruiting
Fecal transplant for Crohn’s around the small and large bowel
This trial studies fecal microbiota transplantation (a transplant of beneficial gut bacteria from a donor) to help people with Crohn’s disease that is causing narrowing (strictures) and/or abnormal tunnels (fistulas) and who need bowel surgery. You may qualify if you’re an adult, planning ileal/ileocecal surgery, and can complete the colonoscopy while not on certain gut-altering medicines.
TampereAges 18–120 - NCT04646707Recruiting
Nerve block to reduce opioid use after neck spine surgery
This trial tests whether a targeted back/neck numbing injection (an erector spinae block) can help reduce the amount of opioid pain medicine needed after posterior cervical spine surgery. It also aims to support an “enhanced recovery” pathway so patients may recover more comfortably and potentially faster.
Toronto, OntarioAges 18–80 - NCT04652180Recruiting
Robot surgery versus open surgery for esophagus cancer
This trial compares robot-assisted surgery with the standard open chest operation to remove esophagus and nearby tissue. It may help you understand which approach works better and is safer for patients whose cancer can be surgically removed.
L'Hospitalet de Llobregat, BarcelonaAges 18 years+ - NCT04659317RecruitingPhase 3
Opioid-free pain plan for joint and arm surgeries
This Phase 3 study tests an opioid-free approach to pain control for certain orthopedic (bone/joint) surgeries. The goal is to help people manage surgical pain without using opioid pain medicines.
Atlanta, GeorgiaAges 18 years+ - NCT04699292Recruiting
Registry study for local treatment in soft tissue sarcoma
This registry collects coded information about adults with a specific soft tissue sarcoma (MLS) to better understand how local treatments help. If you qualify, you don’t necessarily receive a new drug in this study—your data is used to improve future care.
AmsterdamAges 18 years+ - NCT04715581Recruiting
Pre-surgery rehab program for frail older adults having stomach surgery
This trial studies a “prehabilitation” program—exercise and coaching before surgery—to help frail older adults recover better after major digestive cancer surgery. It may help you strengthen your body and function before the operation, which can improve outcomes after surgery.
Beijing, Beijing MunicipalityAges 65–89 - NCT04731558RecruitingPhase 4
Blood clot prevention before versus after liver surgery
This study compares two approaches to preventing blood clots around the time of liver surgery. If you’re having planned liver surgery, it may help doctors choose the safest timing and method for clot prevention.
HelsinkiAges 18 years+ - NCT04792554Recruiting
Study of aging around major non-heart surgery
This study looks at changes in health and function in older adults before and after major surgery. It may help doctors understand how “aging” affects recovery and what could improve outcomes.
SingaporeAges 65–100 - NCT04809025Recruiting
Testing biopsy samples vs surgery samples for stomach cancer testing
This study compares two ways of getting stomach cancer tissue: a camera-guided biopsy and a tissue sample taken during planned stomach surgery. The goal is to see which sample better supports molecular (gene-based) testing to guide diagnosis.
Shanghai, Shanghai MunicipalityAges 18–75
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Common questions
- Are there clinical trials for postoperative?
- Yes. Clin2 currently lists 1,431 recruiting postoperative studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a postoperative trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a postoperative trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.