79 studies found for:    Open Studies | caffeine
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Rank Status Study
21 Not yet recruiting Evaluating the Role of Expectations in Response to Caffeine Consumption: An RCT
Conditions: Caffeine;   Affect;   Other Stimulant Use, Unspecified;   Cognitive Ability, General
Interventions: Drug: Caffeine;   Drug: Placebo
22 Not yet recruiting Tea Components, Mental Stress and Blood Pressure
Condition: Healthy
Interventions: Other: Combination of caffeine and theanine;   Other: Caffeine
23 Recruiting Clinical Study to Evaluate Efficacy of New Paracetamol Formulation Compared to Ibuprofen in Headache
Condition: Pain
Interventions: Drug: Paracetamol and Caffeine;   Drug: Ibuprofen;   Other: Placebo
24 Recruiting Prevention of Atrial Fibrillation Following Valvular Replacement With Cardiopulmonary Bypass: a Prospective, Randomized Clinical Study Comparing Oral Caffeine With Placebo
Condition: Atrial Fibrillation
Interventions: Drug: citrate of caffeine;   Drug: placebo
25 Unknown  The Effect of Dosage of Caffeine on Intraocular Pressure
Conditions: Intraocular Pressure;   Caffeine Dosage
Interventions: Other: decaffeinated coffee;   Other: regular dose coffee;   Other: high dose coffee
26 Not yet recruiting The Effects of Caffeine on Pain-Based Pacing During a Cycling Time-Trial
Condition: Healthy
Interventions: Drug: Caffeine;   Drug: Placebo
27 Not yet recruiting Management of Apnea in Late Preterm and Term Infants
Condition: Apnea
Interventions: Drug: Caffeine citrate;   Device: Home monitor;   Other: Continued inpatient monitoring until apnea resolution
28 Not yet recruiting Influence of Lifestyle Factors on Neutrophil Migration Pilot Study
Condition: Neutrophil Chemotactic Response
Interventions: Other: Exercise;   Drug: ProLab 200mg caffeine capsule;   Other: Ethanol ingestion
29 Recruiting Effect of Caffeine on Heart Function
Conditions: Fatigue;   Tachycardia
Interventions: Dietary Supplement: Monster Energy Drink;   Dietary Supplement: Monster energy drink;   Dietary Supplement: Coffee
30 Not yet recruiting Pharmacokinetic Study to Evaluate the Effect of a Single Dose of Guselkumab (CNTO 1959) on CYP 450 Enzyme Activities After Subcutaneous Administration in Participants With Psoriasis
Condition: Psoriasis
Interventions: Drug: Guselkumab;   Drug: Midazolam;   Drug: Warfarin;   Drug: Omeprazole;   Drug: Dextromethorphan;   Drug: Caffeine
31 Unknown  A Comparative Study Between Lysine Clonixinate+Cyclobenzaprine and Caffeine+Carisoprodol+Sodium Diclofenac+Paracetamol
Condition: Low Back Pain
Interventions: Drug: Tandrilax;   Drug: Dolamin Flex
32 Unknown  Imaging the Effects of Zolpidem and Alprazolam in Healthy Volunteers at 3T
Condition: Psychotropic Drugs Effects
Interventions: Drug: Zolpidem;   Drug: Alprazolam;   Drug: Caffeine;   Other: Placebo
33 Recruiting Treatment of Orthostatic Hypotension in Autonomic Failure
Conditions: Autonomic Failure;   Orthostatic Hypotension
Interventions: Drug: Atomoxetine;   Drug: Acarbose;   Drug: Pyridostigmine Bromide;   Drug: Yohimbine;   Drug: Midodrine HCl;   Drug: placebo;   Drug: Modafinil;   Drug: Octreotide;   Other: water intake;   Drug: Diphenhydramine Hydrochloride;   Drug: Ranitidine HCL;   Drug: Tranylcypromine;   Drug: Ergotamine/ Caffeine;   Drug: Celecoxib;   Drug: Pseudoephedrine;   Drug: Methylphenidate;   Drug: Indomethacin;   Drug: Ibuprofen;   Drug: Oxymetazoline 0.05% nasal solution;   Dietary Supplement: Bovril;   Drug: Acetazolamide;   Drug: Rivastigmine tartrate;   Drug: Carbidopa/levodopa;   Device: Inflatable abdominal binder;   Device: inflatable abdominal binder (sham)
34 Recruiting Oxygen Saturation and Caffeine Post-Discharge
Condition: Prematurity
Intervention: Other: Pulse oxymeter measurements
35 Recruiting Cytochrom p450 3A4 and 1A2 Phenotyping for the Individualization of Treatment With Sunitinib or Erlotinib in Cancer Patients
Conditions: Non Small-cell Lung Cancer;   Renal-cell Cancer;   Gastrointestinal Stroma Tumor
Interventions: Drug: Sunitinib;   Drug: Erlotinib;   Drug: Midazolam;   Drug: Caffeine
36 Unknown  Effect of Phytochemicals From Theobroma Cacao on Mental Energy
Condition: Mental Fatigue
Interventions: Other: Active comparator 1;   Other: Active comparator 2;   Other: Active comparator 3;   Other: Active comparator 4;   Other: Inactive comparator
37 Not yet recruiting Caffeinated Gum to Prevent Post-Operative Ileus: A Prospective, Randomized, Placebo-controlled Trial
Condition: C.Surgical Procedure; Digestive System
Interventions: Dietary Supplement: Caffeine;   Other: Gum
38 Recruiting An Open Label, Single Dose, Three Part Study to Assess the Effects of Rolapitant (2 mg/mL IV Solution) on the Pharmacokinetics of Digoxin; Sulfasalazine; and the Cooperstown Cocktail (Midazolam, Omeprazole, Warfarin, Caffeine, and Dextromethorphan in Healthy Subjects
Condition: Chemotherapy-induced Nausea and Vomiting
Interventions: Drug: Rolapitant;   Drug: Digoxin;   Drug: Sulfasalazine;   Drug: Cooperstown Cocktail
39 Not yet recruiting Evaluation of CYP450 Activities in Diabetic Patients vs. Non-diabetic Subjects
Condition: Type 2 Diabetes
Intervention: Drug: CRCHUM-MT cocktail
40 Unknown  Long-term Effects of Green Tea on Gut Flora, Fat Absorption, Body Composition and Resting Energy Expenditure
Condition: Obesity
Interventions: Dietary Supplement: placebo;   Dietary Supplement: green tea (757 mg/capsule [84.5 mg EGCG + 2.1 mg caffeine ]

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Indicates status has not been verified in more than two years