Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,220 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06553729Recruiting
Vitamin D and prebiotic supplement for blood sugar during pregnancy
This trial tests whether taking a combination of vitamin D and a prebiotic can help manage blood sugar levels in pregnant women at high risk for gestational diabetes. It may offer a simple way to support a healthy pregnancy.
Zhanjiang, GuangdongAges 18–45 - NCT06355258RecruitingPhase 1
Troxerutin to prevent blood clots in COVID-19 patients
This trial tests if the drug troxerutin can prevent dangerous blood clots in adults hospitalized with mild or severe COVID-19. If you have COVID-19 and are not already on blood thinners or at high risk for bleeding, you may be able to join.
Shaoxing, ZhejiangAges 18 years+ - NCT06162611RecruitingPhase 4
Emergency contraception with implant and pill
This study tests whether starting the birth control implant (Nexplanon) right after taking emergency contraceptive pills can be a safe and effective way to prevent pregnancy. You might qualify if you've had unprotected sex in the last 3 days and want a long-term birth control option.
Salt Lake City, UtahAges 18–35 - NCT06014528RecruitingPhase 2
IN10018 plus liposomal doxorubicin for platinum-resistant ovarian cancer
This trial tests if adding the drug IN10018 to standard chemotherapy (liposomal doxorubicin) can help women with ovarian cancer that has stopped responding to platinum-based treatments. It aims to see if the combination works better than chemotherapy alone.
BeijingAges 18 years+ - NCT06039566RecruitingPhase 3
NAC vs placebo for pain after hysterectomy
This trial tests if a medicine called N-acetylcysteine (NAC) can reduce the need for strong pain pills after hysterectomy surgery. If you are having a laparoscopic or robotic hysterectomy, this study may help you recover with less opioid pain medicine.
Charleston, South CarolinaAges 18 years+ - NCT05635877RecruitingPhase 4
Low-dose heart-rate medicine after surgery in frail older adults
This trial tests whether a low dose of esmolol (a short-acting heart-rate medicine) can reduce heart muscle injury after non-heart surgery in older, frail people. It may help lower the chance of heart-related complications around the time of surgery.
Jinan, ShandongAges 65–90 - NCT04912596Recruiting
Tested albuterol inhaler compared to a standard inhaler for mild asthma
This study checks whether a new albuterol inhaler works the same way as a reference inhaler in adults with stable, mild asthma. It may help you (and others) by confirming that the inhaler delivers the right effect and is safe to use.
AhmedabadAges 20–65 - NCT05382728RecruitingPhase 3
Test drug for EGFR-mutant lung cancer without prior treatment
This Phase 3 trial studies TY-9591 in people with locally advanced or metastatic non-small cell lung cancer (NSCLC) that has specific EGFR gene changes. It’s for those who haven’t had earlier medicines for advanced lung cancer, and it aims to see if the drug works better or safer than the comparison treatment.
Changsha, HunanAges 18–80 - NCT04688736RecruitingPhase 2
Placebo vs allergy medicine to prevent transfusion reactions
This trial tests whether an allergy medicine (chlorpheniramine) can prevent allergic reactions during blood transfusions. You might be placed in either the medicine group or a placebo (inactive pill) group to compare side effects and reaction rates.
Hefei, AnhuiAges 18–65 - NCT05206955RecruitingPhase 3
Tadalafil versus placebo for Fontan circulation problems
This study tests whether tadalafil (a daily pill) can improve blood flow and protect organs in adults who have had Fontan surgery. Participants will either receive tadalafil or a placebo, and they will be monitored during a planned heart catheter procedure.
Rochester, MinnesotaAges 18 years+ - NCT05007561RecruitingEarly Phase 1
Study of how opioids change feelings and brain responses to social events
This early-stage study looks at how opioids affect your experience of social situations and your brain activity. It may help researchers understand how opioid medicines influence social perception and brain signaling.
San Diego, CaliforniaAges 18–25 - NCT04227314RecruitingPhase 3
Apremilast vs placebo for severe recurrent mouth ulcers
This Phase 3 trial tests whether apremilast can reduce severe, recurring mouth ulcers compared with an inactive placebo. It aims to improve ulcer frequency and pain while carefully checking safety.
AmiensAges 18 years+ - NCT05689034RecruitingPhase 2/Phase 3
Azvudine for early COVID-19 in higher-risk adults
This trial studies azvudine in adults with early COVID-19 symptoms to see if it can prevent the illness from getting severe. You may qualify if you’re within about 5 days of symptom start and have risk factors for worsening disease.
Beijing, Beijing MunicipalityAges 18–120 - NCT07143773RecruitingPhase 4
SGLT2i safety in kidney transplant patients without diabetes
This study tests whether a medicine called SGLT2i (a type of pill for kidney health) is safe and helpful for kidney transplant recipients who do not have diabetes. It aims to see if it can improve how the new kidney works.
OdenseAges 18 years+ - NCT07437911Recruiting
Can a Supplement Help with Nutrient Gaps for GLP-1 Users?
This study tests whether a daily supplement can help fill nutrient gaps and improve gut health for people who are already taking GLP-1 weight-loss medications (like Ozempic or Wegovy). Participants must be on a stable dose for at least 8 weeks and be generally healthy without other chronic conditions.
Santa Monica, CaliforniaAges 18–59 - NCT07117474RecruitingPhase 1
Testing a single injection for mild high blood pressure
This trial tests a single injection of HRS-9563 in people with mild hypertension (blood pressure 130-159 mmHg) to see if it is safe and how the body processes it. You must not be taking any blood pressure medicines now.
Hangzhou, ZhejiangAges 18–65 - NCT07126262RecruitingPhase 2
Vosoritide for growth in infants with hypochondroplasia
This study tests a daily injection called vosoritide to see if it helps children with hypochondroplasia grow taller. It is for babies and toddlers up to 35 months old who are shorter than average for their age.
Phoenix, ArizonaAges birth–3 years - NCT06837298Recruiting
Fava bean extract supplement for muscle recovery
This trial tests whether a supplement made from fava bean protein can help your muscles recover strength after exercise. You would take the supplement for about 2 weeks and have your muscle function tested before and after.
Bradenton, FloridaAges 18–45 - NCT06189495RecruitingPhase 2
Study of Genakumab for lung scarring from connective tissue disease
This study tests a new injected medication (Genakumab) for people with connective tissue disease-related lung scarring. It aims to see if it helps stabilize or improve lung function safely.
Beijing, Beijing MunicipalityAges 18–75 - NCT07295938RecruitingPhase 2
Traditional Chinese medicine as an add-on treatment for mycobacterium abscessus in the lungs
This study tests if adding traditional Chinese medicine to standard treatment helps people with a lung infection called Mycobacterium abscessus. It may improve recovery and reduce side effects.
BeijingAges 18–75 - NCT06022822RecruitingPhase 2
Urolithin A supplement before prostate cancer surgery
This trial tests whether taking a supplement called urolithin A for a few weeks before prostate removal surgery can help. The supplement comes from pomegranates and may slow cancer growth. You may qualify if you have prostate cancer, are planning surgery within 3-6 weeks, and have not had prior treatment like hormone therapy.
Los Angeles, CaliforniaAges 18 years+ - NCT07286032RecruitingPhase 3
Study of a pill to raise low platelets after chemo
This study tests an investigational pill (hetrombopag) to see if it can safely raise platelet counts in people with solid tumors whose platelets drop after chemotherapy. If you are receiving platinum- or gemcitabine-based chemo and have low platelets due to chemo, this trial may be an option.
Los Alamitos, CaliforniaAges 18 years+ - NCT07492134RecruitingPhase 2
Antibiotics vs placebo for mild diverticulitis
This study tests whether antibiotics are necessary for mild diverticulitis or if a placebo works just as well. Participants are treated in the emergency department and followed using a smartphone app.
Nashville, TennesseeAges 18–90 - NCT07625358Recruiting
How Caffeine and Alcohol Affect Your Eyes
This study measures how caffeine and alcohol change the size of your pupils (the dark circles in your eyes). Researchers want to understand how these common substances affect your eye's natural responses, which could help with vision and neurological research.
SingaporeAges 30–50
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,220 recruiting placebo 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 placebo 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 placebo 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.