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Related Concept Videos

Clinical Trials01:16

Clinical Trials

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Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
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Clinical Trials: Overview01:11

Clinical Trials: Overview

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Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
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Renal Regulation of Acid-Base Balance01:29

Renal Regulation of Acid-Base Balance

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Metabolic reactions in the body produce nonvolatile acids, such as sulfuric acid, which generate an acid load of approximately 1 mEq of H+ per kilogram of body weight daily. Excreting H+ in the urine is essential to balance this acid load.
In the kidneys, cells within the proximal convoluted tubules (PCT) and the collecting ducts secrete hydrogen ions (H+) into the tubular fluid. Specifically, in the PCT, Na+/H+ antiporters secrete H+ while reabsorbing Na+.
However, the intercalated cells in...
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Urinary Tract Calculi IV: Nutrition Therapy and Prevention01:27

Urinary Tract Calculi IV: Nutrition Therapy and Prevention

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Management of renal calculi focuses on effective strategies like tailored nutrition and hydration therapy. Adjusting diet and fluid intake reduces stone formation and recurrence, making these interventions simple yet powerful in kidney stone prevention and management.Understanding Kidney StonesKidney stones form when calcium, oxalate, uric acid, and cystine concentrate and crystallize in urine. Factors contributing to their formation include genetic predisposition, certain medical conditions,...
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Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies01:28

Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies

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Peptic ulcer disease (PUD) presents with diverse symptoms depending on the location and severity of the ulcer. Clinical manifestations of peptic ulcer include dull pain and a burning sensation in the mid-epigastric region.
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
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Chronic Kidney Disease II: Clinical Manifestations01:24

Chronic Kidney Disease II: Clinical Manifestations

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Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
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End Point Considerations for Clinical Trials in Enteric Hyperoxaluria.

Craig B Langman1, Dean Assimos2, Melanie Blank3

  • 1Feinberg School of Medicine, Department of Pediatrics, Northwestern University, Chicago, Illinois.

Clinical Journal of the American Society of Nephrology : CJASN
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PubMed
Summary
This summary is machine-generated.

Enteric hyperoxaluria, causing kidney stones and failure, lacks FDA-approved treatments. This study reviewed potential clinical trial endpoints but found data gaps, delaying definitive recommendations for new therapies.

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Area of Science:

  • Nephrology
  • Gastroenterology
  • Clinical Trial Design

Background:

  • Enteric hyperoxaluria involves increased oxalate absorption, leading to kidney stones and chronic kidney disease (CKD).
  • Current treatments are limited, and effective clinical trial endpoints for evaluating new therapies are undefined.
  • No US Food and Drug Administration-approved therapies exist for enteric hyperoxaluria.

Purpose of the Study:

  • To review evidence for potential endpoints in clinical trials for enteric hyperoxaluria.
  • To identify and evaluate surrogate endpoints for assessing therapeutic efficacy.

Main Methods:

  • A multidisciplinary Kidney Health Initiative workgroup convened to review existing data.
  • Evidence supporting potential clinical and surrogate endpoints was critically assessed.

Main Results:

  • Potential clinical outcome: symptomatic kidney stone events.
  • Potential surrogate endpoints identified: kidney function loss, asymptomatic stone changes, urinary oxalate/calcium oxalate supersaturation, and plasma oxalate.
  • Data gaps prevented definitive recommendations for clinical trial endpoints.

Conclusions:

  • Further research is needed to establish robust endpoints for enteric hyperoxaluria clinical trials.
  • Informed trial design and medical product development require more data.
  • The study highlights the need for validated surrogate endpoints to accelerate therapeutic advancements.