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Trial of Hydroxychloroquine In Covid-19 Kinetics (THICK)

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ClinicalTrials.gov Identifier: NCT04353271
Recruitment Status : Terminated (FDA recommendations to not use outside of the hospital setting or in a clinical trial due to the risk of cardiac arrhythmias)
First Posted : April 20, 2020
Results First Posted : January 3, 2022
Last Update Posted : January 3, 2022
Information provided by (Responsible Party):
William Richards, University of South Alabama

Brief Summary:

To test if the medication Hydroxychloroquine will decrease the amount of virus(as measured by PCR) , 7 days after initiation of therapy compared to control patients receiving placebo.

The study design is a randomized (5 days of medication v. 5 days of placebo) clinical trial initiated immediately after diagnosis in ambulatory health care workers at University of South Alabama Health, or in ambulatory USA patients. At 7 days after enrollment another nasopharyngeal swab will be taken to measure if the virus is still present. At 10 weeks we will measure immunity from Covid-19 using a single blood sample. It is a phase 2/3 clinical trial.

Condition or disease Intervention/treatment Phase
Covid 19 Corona Virus Infection Drug: Hydroxychloroquine Other: Placebo Phase 2 Phase 3

Detailed Description:
Hydroxychloroquine (HCQ), which is a less toxic derivative of chloroquine (CQ), has been shown to be effective in inhibiting Covid-19 infection in vitro. The evidence from clinical research trials is sparse and has many flaws. Much of the Chinese experience with Chloroquine comes from a letter to the editor and a news briefing/conference held on February 15, 2020. The letter describes experience with more than 100 patients treated with CQ in multicenter clinical trials but the letter provides no quantitative data to back their claims. At least one non-randomized clinical trial has been performed in Europe. Covid-19 infected patients received 10 days of HCQ daily and underwent daily testing of viral loads from nasopharyngeal swabs. The subjects receiving HCQ were much more likely (P<0.02) to clear their viral load than subjects who did not receive HCQ. The study had many flaws, which make the conclusions less valuable than rigorously designed randomized clinical trial. This study is designed as a randomized, blinded trial to either confirm or refute the efficacy of HCQ in early treatment of Covid19 infection to ameliorate disease severity, and reduce viral load.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 3 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: Randomized placebo verses medication clinical trial
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Masking Description: Blinded to subject and investigators
Primary Purpose: Treatment
Official Title: A Randomized Phase 2/3 Trial of Hydroxychloroquine In Covid-19 Kinetics
Actual Study Start Date : April 17, 2020
Actual Primary Completion Date : July 8, 2020
Actual Study Completion Date : July 8, 2020

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Hydroxychloroquine
Subjects in this arm will receive the study drug
Drug: Hydroxychloroquine
Hydroxychloroquine 800 mg initial dose then 6-8 hours later HCQ 600 mg, then 200 mg three times per day for 4 days.
Other Name: plaquenil

Placebo Comparator: Placebo
Subjects in this arm will take placebo for 6 days
Other: Placebo
Placebo take 4 tabs, then 6-8 hours later take 3 tabs, then take 1 tab three times per day for 4 days.

Primary Outcome Measures :
  1. Number of Participants Who Are Virus Free [ Time Frame: 7 days after initiation of trial ]
    Nasopharyngeal swab PCR measurement of viral load expressed as the % of negative PCR swabs

  2. Disease Severity [ Time Frame: 6 days ]
    Participants will self-report disease severity status as one of the following 5 options; no COVID19 illness (score of 1), COVID19 illness with no hospitalization (score of 2), or COVID19 illness with hospitalization (score of 3), or Covid 19 with care requiring hospitalization (score of 4), or Covid 19 with death (Score of 5) .

Secondary Outcome Measures :
  1. Number of Participants Who Are Hospitalized for Covid 19 Infection [ Time Frame: 14 days ]
    Number of subjects in each arm who are hospitalized for Covid 19 infection

  2. Number of Participants Who Die Secondary to Covid 19 Infection [ Time Frame: 70 Days (10 weeks) ]
    Number of subjects in each arm who die secondary to Covid-19 infection

  3. Number of Participants Who Have Confirmed Covid 19 Infection [ Time Frame: 14 days ]
    Number of subjects in each arm who have confirmed Covid-19 infection

  4. Number of Participants Who Discontinue or Withdraw Medication Use for Any Reason [ Time Frame: 14 days ]
    Number of subjects in each arm who discontinue or withdraw medication use for any reason

  5. Immunity to Covid-19 [ Time Frame: 70 days (10 weeks) ]
    Blood tests to determine level of immunity in each subject

Information from the National Library of Medicine

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Ages Eligible for Study:   19 Years to 85 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Symptoms occurring within 3 days prior to patient presenting to USA Facility for PCR nasopharyngeal swab
  • Nasopharyngeal swab positive for Covid-19 infection and/or exposure and/or symptoms congruent with fever and cough
  • Male or Female age 19 to 89 years
  • Able to take oral medications
  • Patients not requiring hospitalization
  • Provision of informed consent

Exclusion Criteria:

  • Known history of EKG QTc prolongation abnormality
  • Contraindication or allergy to hydroxychloroquine
  • Retinal eye disease
  • Known glucose-6 phosphate dehydrogenase (G-6-PD) deficiency
  • Known chronic kidney disease, stage 4 or 5 or receiving dialysis
  • Weight < 40 kg
  • Current use of: hydroxychloroquine or cardiac medicines of: flecainide, Tambocor; amiodarone, Cordarone, Pacerone; digoxin or Digox, Digitek, Lanoxin; procainamide or Procan, Procanbid, propafenone, Rythmal)
  • Known hepatic disease (cirrhosis, hepatitis)
  • Active treatment for cancer (chemotherapy, radiation, surgery within 3 months
  • On immunosuppressive drugs steroids, antirejection medications.
  • Recipient of solid organ transplant
  • Pregnancy/breastfeeding
  • Past medical history Porphyria (may exacerbate disease)
  • PMH Psoariasis (can worsen disease)
  • No access to internet or email
  • Current suicidal thoughts according to Columbia scale
  • In the screening process before signing consent, subjects will be asked if they are suicidal. If this response is yes, patients will be excluded from trial and directed to the National Suicide Prevention Lifeline: 1-800-273-8255.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04353271

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United States, Alabama
University of South Alabama
Mobile, Alabama, United States, 36604
Sponsors and Collaborators
University of South Alabama
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Principal Investigator: William O Richards, MD University of South Alabama College of Medicine
  Study Documents (Full-Text)

Documents provided by William Richards, University of South Alabama:

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Responsible Party: William Richards, Professor and Chair Surgery, University of South Alabama
ClinicalTrials.gov Identifier: NCT04353271    
Other Study ID Numbers: [1582736-1]
First Posted: April 20, 2020    Key Record Dates
Results First Posted: January 3, 2022
Last Update Posted: January 3, 2022
Last Verified: December 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: Yes
Keywords provided by William Richards, University of South Alabama:
covid 19
Additional relevant MeSH terms:
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Coronavirus Infections
Coronaviridae Infections
Pneumonia, Viral
Respiratory Tract Infections
Virus Diseases
Nidovirales Infections
RNA Virus Infections
Lung Diseases
Respiratory Tract Diseases
Antiprotozoal Agents
Antiparasitic Agents
Anti-Infective Agents
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Antirheumatic Agents