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Trial phase

Phase 4 Clinical Trials

After approval: long-term safety and effectiveness in everyday use.

35,983 registered studies

In numbers

Open to volunteers
3,687
Active
4,303
With results posted
8,073
All registered
35,983

Open to volunteers: recruiting, not yet recruiting or enrolling by invitation. Active adds studies under way that have stopped recruiting.

Open to volunteers

All 3,687
  • Vasodilatory Shock

    Synthetic Angiotensin II/Giapreza in Pediatric Patients With Refractory Hypotension

    • Enrolling by invitation
    • Age: 0 days to 18 years
    • Phase 4

    The goal of this clinical trial is to determine the safety and efficacy of Angiotensin-II in the treatment of pediatric patients in fluid refractory vasodilatory shock.

    Trial name
    NCT07212686
    Testing
    Angiotensin-II
    Where
    2 sites in United States
    Volunteers
    30 people
    Sponsor
    Northwell Health
    Can I take part? NCT07212686
  • Pulmonary Edema, Congestive Heart Failure

    DECONGEST-AHF: Vasodilatation or Loop Diuretics in Acute Heart Failure

    • Recruiting
    • Age: 18 years and older
    • Phase 4
    • Injection or infusion

    DECONGEST-AHF compares three initial treatments for adults admitted with suspected pulmonary congestion due to acute heart failure: intravenous furosemide, intravenous isosorbide dinitrate, or both medicines together.

    Conditions
    Pulmonary Edema, Congestive Heart Failure, Acute Heart Failure
    Trial name
    DECONGEST-AHF (NCT05276219)
    Testing
    Furosemide Injection, Isosorbide Dinitrate, Furosemide and isosorbide dinitrate
    Where
    5 sites in Denmark
    Volunteers
    1,041 people
    Sponsor
    Copenhagen University Hospital, Rigshospitalet
  • Diabetic Retinal Disease

    Longitudinal Study of Retinal Function in Eyes Treated for Diabetic Macular Edema With Anti-VEGF Agents

    • Recruiting
    • Age: 18 years and older
    • Phase 4

    A considerable hurdle to the development of novel, more effective therapies for diabetic retinal disease is the limited number of primary endpoints available for use in regulatory trials.

    Trial name
    AS (NCT07567833)
    Testing
    Anti-Vascular Endothelial Growth Factor
    Where
    8 sites in United States
    Volunteers
    100 people
    Sponsor
    Jaeb Center for Health Research
    Can I take part? AS
  • Crohn Disease, Perianal Fistula

    Risankizumab for Refractory Perianal Fistulizing Crohn's Disease

    • Recruiting
    • Age: 15 years and older
    • Phase 4

    Crohn's disease is an inflammatory bowel disease characterized by relapses and remissions, causing lesions throughout the digestive tract and accompanied by diarrhea, abdominal pain, and nutritional disorders.

    Conditions
    Crohn Disease, Perianal Fistula, Perianal Fistula Due to Crohn's Disease, Perianal Crohn's Disease
    Trial name
    RIS-PERIANAL (NCT07872449)
    Testing
    Risankizumab
    Where
    4 sites in Japan
    Volunteers
    25 people
    Sponsor
    Yuki Horio
  • Macular Degeneration, Diabetic Retinopathy

    Iopidine to Decrease Intraocular Pressure Rise After Injections

    • Not yet recruiting
    • Age: 18 years and older
    • Phase 4

    This is a prospective, randomized, controlled, open-label, single-site investigator-initiated clinical trial. A total of 120 participants will be randomized in a 1:1 ratio either to receive one drop of apraclonidine 1% ophthalmic…

    Conditions
    Macular Degeneration, Diabetic Retinopathy, Retinal Vein Occlusion, Glaucoma
    Trial name
    NCT07891910
    Testing
    Apraclonidine 1.0% ophthalmic solution
    Where
    United States
    Volunteers
    120 people
    Sponsor
    Retina Consultants of Delmarva
    Can I take part? NCT07891910
  • Asthma

    Ventilation and Perfusion in Asthmatics

    • Recruiting
    • Age: 18 to 75 years
    • Phase 4

    Assess regional changes to perfusion and ventilation from inhaled corticosteroid (ICS) and Fast-acting beta-antagonist (FABA) among adult asthmatics using radiographically derived estimates of regional ventilation…

    Trial name
    NCT07426458
    Testing
    Albuterol Sulfate, Albuterol-Budesonide
    Where
    United States
    Volunteers
    40 people
    Sponsor
    University of Miami
    Can I take part? NCT07426458
  • Laparoscopic Surgery, Visceral Pain, Postoperative

    Anrikefon-based Patient-controlled Intravenous Analgesia Following Laparoscopic Surgery

    • Recruiting
    • Age: 18 to 75 years
    • Phase 4

    Visceral pain following laparoscopic surgery is frequently underestimated, yet it is associated with a range of adverse outcomes.

    Conditions
    Laparoscopic Surgery, Visceral Pain, Postoperative, Anrikefon, Patient-controlled Intravenous Analgesia
    Trial name
    NCT07525986
    Testing
    High-dose anrikefon, Medium-dose anrikefon, Low-dose anrikefon
    Where
    4 sites in China
    Volunteers
    140 people
    Sponsor
    Peking University First Hospital
    Can I take part? NCT07525986
  • Peripheral Arterial Disease

    Ramipril Treatment of Claudication: Oxidative Damage and Muscle Fibrosis

    • Recruiting
    • Age: 18 to 90 years
    • Phase 4

    Peripheral artery disease (PAD) is a manifestation of atherosclerosis that produces progressive narrowing and occlusion of the arteries supplying the lower extremities.

    Trial name
    NCT02842424
    Testing
    Ramipril
    Where
    United States
    Volunteers
    70 people
    Sponsor
    University of Nebraska
    Can I take part? NCT02842424
  • Pouchitis

    Rifaximin for the Secondary Prevention of Recurrent Pouchitis

    • Recruiting
    • Age: 18 to 74 years
    • Phase 4
    • Pill or oral medicine

    Although many people will develop recurrent pouchitis (inflammation of the ileal pouch-anal anastomosis or J-pouch after colectomy for ulcerative colitis) after an initial episode of pouchitis, there are currently no effective…

    Trial name
    NCT06312683
    Testing
    Rifaximin 550 MG Oral Tablet [XIFAXAN]
    Where
    2 sites in United States
    Volunteers
    16 people
    Sponsor
    University of North Carolina, Chapel Hill
    Can I take part? NCT06312683
  • Chronic Graft Versus Host Disease

    A Study to Investigate Safety of Belumosudil in Participants Aged 12 Years and Above, With Chronic Graft-versus-host Disease (cGVHD)

    • Not yet recruiting
    • Age: 12 years and older
    • Phase 4

    This is an interventional phase IV clinical study which is single-arm study for assessing the safety of belumosudil in Indian patients who are12 years and older.

    Trial name
    NCT07135973
    Testing
    Belumosudil
    Volunteers
    26 people
    Sponsor
    Sanofi
    Can I take part? NCT07135973

Completed, with results posted

All 6,793
  • Venous Thromboembolism

    Comparison of Bleeding Risk Between Rivaroxaban and Apixaban: The Pilot Study

    • Completed
    • Age: 18 years and older
    • Phase 4
    • Results posted

    This vanguard pilot study compares rivaroxaban and apixaban, two of the new oral blood thinners for the treatment of blood clots. Half of the patients will receive apixaban and half will receive rivaroxaban.

    Trial name
    COBRRA Pilot (NCT02559856)
    Testing
    Apixaban, Rivaroxaban
    Where
    4 sites in Canada
    Volunteers
    71 people
    Sponsor
    Ottawa Hospital Research Institute
  • Cesarean Delivery

    Intravenous Methadone Versus Intrathecal Morphine for Analgesia Following Cesarean Delivery

    • Completed
    • Age: 18 years and older
    • Phase 4
    • Injection or infusion
    • Results posted

    The purpose of this study is to determine if there is a difference in opioid requirements at 0-48 hours after scheduled cesarean delivery in patients receiving 150 mcg intrathecal morphine compared to 0.2 mg/kg (maximum 20 mg)…

    Trial name
    NCT06826742
    Testing
    Intravenous line (IV) Methadone, Intrathecal Morphine
    Where
    United States
    Volunteers
    30 people, healthy volunteers welcome
    Sponsor
    Mayo Clinic
    Can I take part? NCT06826742
  • Cerebral Infarction

    Edaravone-Sodium Ozagrel Comparative Post-Marketing Study on Acute Ischemic Stroke

    • Completed
    • Age: 20 years and older
    • Phase 4
    • Results posted

    This study is randomized, Sodium Ozagrel (Thromboxane A2 Synthase Inhibitor) controlled study on acute ischemic stroke. The primary endpoints were the rate of patients with modified Rankin Scale score of 0-1 at 3 months.

    Trial name
    NCT00200356
    Testing
    Edaravone, Sodium Ozagrel
    Volunteers
    401 people
    Sponsor
    Shionogi
    Can I take part? NCT00200356
  • Postmenopausal Osteoporosis

    A Study of Romosozumab (EVENITY®) in Postmenopausal Women in India With Osteoporosis at a High Risk of Fracture.

    • Completed
    • Age: 18 years and older
    • Phase 4
    • Results posted

    The primary objective of this study is to characterize safety and tolerability of romosozumab in postmenopausal women with osteoporosis and a high risk of fracture in India.

    Trial name
    NCT06079476
    Testing
    Romosozumab
    Where
    10 sites in India
    Volunteers
    100 people
    Sponsor
    Amgen
    Can I take part? NCT06079476
  • Deep Dental Caries

    Outcomes of Partial Pulpotomy Treatment in Cariously Exposed Teeth

    • Completed
    • Age: 18 to 50 years
    • Phase 4
    • Medical device
    • Results posted

    The aim of this clinical trial is to learn how successful Biodentine and Theracal PT dental filling materials are in treating deep tooth decay in adults. It will also provide information about post-treatment pain.

    Trial name
    NCT06802549
    Testing
    Biodentine (calcium silicate-based cement) (Septodont, Saint Maur de Fossés, France), Theracal PT (resin modified calcium silicate-based cement) (Bisco Inc., Schaumburg, IL, USA)
    Where
    Turkey (Türkiye)
    Volunteers
    61 people
    Sponsor
    Firat University
    Can I take part? NCT06802549

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