Clinical trials
Adverse Effect clinical trials
Below are recruiting adverse effect clinical trials, each written for real people, not researchers. We’re tracking 80 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07767981Recruiting
Gut bacteria and side effects of precise radiation therapy
This study looks at how the bacteria in your gut might affect side effects from a precise type of radiation therapy called stereotactic radiosurgery. By collecting samples, researchers hope to find ways to reduce side effects in the future.
Chicago, IllinoisAges 18 years+ - NCT07057284Enrolling by invitation
Dentofacial effects of proton therapy for childhood head and neck cancer
This study looks at how proton beam therapy (a precise type of radiation) affects the teeth and face in children and teens who had head or neck cancer. The goal is to understand these long-term effects and help improve future care.
ManchesterAges 2–32 - NCT07496489Enrolling by invitation
Study on cannabis edible package warnings
This study looks at how people view warning labels on cannabis edibles packaging. Your thoughts could help improve health messages.
Winston-Salem, North CarolinaAges 18–65 - NCT07379827Recruiting
A study on switching to KarXT for schizophrenia
This trial looks at how well KarXT works and what side effects it might have when people with schizophrenia switch to it from their current antipsychotic medication. It may be an option for those who have started KarXT recently or who plan to switch from their current treatment.
Bryant, ArkansasAges 18 years+ - NCT06982339Recruiting
Beat the Heat Boston study
This study provides free air conditioning units to older adults in certain Boston neighborhoods who don't have AC. It aims to see if cooling homes can help with heat-related health risks for people with certain chronic conditions.
Boston, MassachusettsAges 55–95 - NCT05358535RecruitingPhase 3
Testing two common anesthesia options during endoscopy
This trial compares two IV anesthesia medicines (propofol and etomidate) during endoscopic procedures. It may help your care team choose the safest, most effective anesthesia approach for patients who need anesthesia for endoscopy.
Dallas, TexasAges 18 years+ - NCT06422975Recruiting
Shock treatment with vasopressin registry study
This study tracks people in shock who are treated with a drug called vasopressin in the operating room or intensive care unit. The goal is to see how well this treatment works in real-world situations.
A CoruñaAges 18 years+ - NCT06498167Recruiting
Rinvoq safety study
This study is checking the safety of the medicine Rinvoq (upadacitinib) in people who have been prescribed it. It involves answering a few questions over the phone to help doctors understand how the medicine is working for you.
PortoAges 18 years+ - NCT06642428Recruiting
Vitamin D for breast cancer treatment before surgery
This trial tests whether taking vitamin D pills during chemotherapy or targeted therapy (before breast cancer surgery) can improve how well the treatment works and reduce side effects. It is for women with low vitamin D levels.
Xining, QinghaiAges 18–80 - NCT05192876Recruiting
Review of outcomes and side effects during radiation treatment
This study collects information about results and side effects from people receiving radiation therapy at a specific hospital. It may help improve how radiation treatment is planned and monitored in the future.
Winterthur, Canton of ZurichAges 16–105 - NCT07178600Recruiting
Eye drops for surgery: side effects study
This study looks at how patients react to a common eye drop used before surgery. It helps understand side effects and who might be affected.
Mexico City, Mexico CiyAges 18 years+ - NCT05800535Recruiting
Screening for muscle loss and thinking changes after cancer
This study looks at how common muscle weakness (sarcopenia) and thinking or memory changes (often called “chemobrain”) are in people after cancer treatment. It may help teams understand what support could be most helpful after chemotherapy.
Pierre-BéniteAges 18–74 - NCT06614647Recruiting
Digital follow-up for colorectal cancer survivors
This trial tests a smartphone-based follow-up program for people who have been treated for early-stage colorectal cancer. The goal is to see if a digital, need-based care guide can replace standard follow-up visits.
Herning, Central JutlandAges 18 years+ - NCT06467045Recruiting
Sedation side effects in children having MRI
This study tracks side effects of sedation in children getting an MRI. It helps doctors understand what to expect and how to keep kids safe during the scan.
Istanbul, SarıyerAges birth–16 years - NCT05702944RecruitingPhase 4
Skipping pre-surgery blood pressure medicine for certain adrenal tumors
This trial studies whether it is safe to skip a specific pre-surgery blood pressure medicine (alpha-blocker) for people with normal blood pressure who have a pheochromocytoma or paraganglioma in one adrenal gland. It aims to see if fewer pre-op meds can still prevent risky blood pressure surges during surgery.
SeoulAges 19–70 - NCT06699901Recruiting
Antibiotic levels after major blood transfusion
This study measures how antibiotics work in patients who have had a massive blood transfusion. It aims to ensure the right dose of common antibiotics is being given.
Aurora, ColoradoAges 18 years+ - NCT05024175Recruiting
Follow-up for people who received CAR T-cell therapy
This study is for people who previously received CAR T cells at the Dana-Farber/Harvard Cancer Center (DF/HCC). It mainly checks how you’re doing over the long term after treatment, and asks you to take part in follow-up visits or procedures.
Boston, MassachusettsAges 18 years+ - NCT06936566RecruitingPhase 2
Ruxolitinib for graft-versus-host disease after transplant
This trial tests a drug called ruxolitinib for treating acute graft-versus-host disease (aGVHD), a common complication after a stem cell transplant. It may help control the immune reaction without using high doses of steroids.
Duarte, CaliforniaAges 18 years+ - NCT06576596Recruiting
Oxygen during breathing tube placement in children
This study tests a method to keep children breathing easily while their airway is being prepared for surgery. It may help children who are 0-6 years old and having planned surgery under general anesthesia.
Heidelberg, Baden-WurttembergAges birth–6 years - NCT07666100Recruiting
Study of medication side effects in a periodontology clinic
This study looks at side effects from medications prescribed in a gum disease clinic. It aims to understand what types of side effects patients experience, which can help doctors choose safer medicines.
SivasAges 16 years+ - NCT07210892Recruiting
Spinal anesthesia needle angles study
This study looks at the best angle for inserting the needle during spinal anesthesia. It may help doctors find a more comfortable and effective way to give the numbing medicine.
BarcelonaAges Any age - NCT07739784Recruiting
Personality and side effects of glaucoma eye drops
This study looks at whether your personality affects how you experience side effects from glaucoma eye drops. The results may help doctors choose the best treatment for you and provide more personalized care.
Montreal, QuebecAges 18 years+ - NCT05599347RecruitingPhase 2
Azithromycin before anti-TNF treatment for Crohn’s disease
This Phase 2 trial tests whether taking azithromycin (an antibiotic) before starting infliximab or adalimumab can reduce the chance your body rejects the anti‑TNF medicine. It may help some people get better and keep responding to treatment.
Haifa, Haifa DistrictAges 18 years+ - NCT07729449Recruiting
Predicting headache after cesarean using ultrasound and oxygen monitoring
This trial measures how well two monitoring tools (optic nerve ultrasound and brain oxygen levels) can predict headache after a planned cesarean. It may help find better ways to prevent post-dural puncture headache.
Ordu, AltinorduAges 18–40
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Common questions
- Are there clinical trials for adverse effect?
- Yes. Clin2 currently lists 80 recruiting adverse effect 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 adverse effect 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 adverse effect 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.