Hydroxychloroquine Efficacy and Safety in Preventing SARS-CoV-2 Infection and COVID-19 Disease Severity During Pregnancy and Postpartum

  • End date
    Aug 1, 2021
  • participants needed
  • sponsor
    Barcelona Institute for Global Health
Updated on 2 February 2021


It still unclear how SARS-CoV-2 affects pregnant women and their offspring, as well as which factors may influence obstetrical disease and outcomes, including the timing of maternal viral exposure by gestational age, the effects of parity, age, host immune responses, coexisting medical and obstetrical conditions and the effects of treatment regimens. While further information is gathered, based on the existing evidence from other infections causing pneumonia, pregnant women should be considered to be at high risk for developing severe infection during the current COVID-19 epidemic. Results from clinical trials with HCQ in nonpregnant adults may not be directly extrapolated to pregnant women given the special features of the pregnancy status. Thus, clinical research is urgently needed to improve the care and reduce the risk of poor pregnancy outcomes of women in this and in future epidemics.


This is a randomized, double blinded, placebo-controlled multicenter clinical trial including 714 pregnant women (200 SARS-CoV-2 infected -100 symptomatic with mild disease and 100 asymptomatic- pregnant women and 514 SARS-CoV-2 uninfected pregnant women who are contacts with a SARS-CoV-2 case) with the main objectives of assessing the safety and efficacy of oral hydroxychloroquine (HCQ) in reducing maternal viral shedding by PCR, and preventing incident SARS-CoV-2 infection and disease severity. Pregnant women undergoing antenatal follow up at five maternity hospitals, presenting at least one sign and/or one mild suggestive symptoms and a positive SARS-CoV-2 PCR test, or who are contacts of a suspected or confirmed case, will be recruited and randomized 1:1 to receive HCQ orally (400 mg/day for 3 days, followed by 200 mg/day for 11 days) or placebo. Women will be followed up for the duration of the intervention. One week after intervention completion, a SARS-CoV-2 PCR test will be repeated. At delivery, the pregnancy outcome will be registered, and a cord blood sample will be collected to measure for IgG and IgM of SARS-CoV-2. A neonatal nasopharyngeal aspirate will be collected to perform PCR SARS-CoV-2 testing.

Condition Pregnancy Related, COVID-19, COVID-19, Coronavirus Disease (COVID-19), COVID-19, COVID-19, Pathogen Infection Covid-19 Infection, *Corona Virus Infection, *COVID-19 Infection, Corona Virus Disease 2019(COVID-19), COVID-19, COVID-19, Treat and Prevent Covid-19 Infection, COVID-19, COVID-19 Infection, *COVID-19, COVID-19, Covid-19, COVID-19, COVID-19 Pneumonia, COVID-19, COVID-19, COVID-19, Covid-19, Pathogen Infection Covid-19 Infection, COVID-19, COVID-19, COVID-19, Use of Stem Cells for COVID-19 Treatment, COVID-19, COVID-19, Hospitalized Patients With Covid-19 Pneumonia, Corona Virus Disease 2019(COVID-19), COVID-19 Pneumonia, COVID-19; Cardiovascular Diseases, Community-acquired Pneumonia, Influenza, COVID-19, Old Age, Usability, Visio Telephony, Confinement, Covid-19, COVID-19 Pneumonia, COVID-19 Pneumonia, Acute Respiratory Distress Syndrome Caused by COVID-19, COVID-19 Pneumonia, Corona Virus Disease 2019(COVID-19), Old Age, Usability, Visio Telephony, Confinement, Covid-19, SARS-CoV-2 (COVID-19) Infection, COVID-19 Pneumonia, Corona Virus Disease 2019(COVID-19), COVID-19 Pneumonia, Severe Coronavirus Disease (COVID-19), Acute Respiratory Distress Syndrome Caused by COVID-19, COVID-19 Pneumonia, COVID-19, Hydroxychloroquine Sulfate, SARS-CoV-2 (COVID-19) Infection, COVID-19 Pneumonia, COVID-19, Hydroxychloroquine Sulfate, Anxiety Related to the COVID-19 Pandemic, Acute Respiratory Distress Syndrome Caused by COVID-19, Severe Coronavirus Disease (COVID-19), COVID-19 Pneumonia, *COVID-19 Infection, Severe Coronavirus Disease (COVID-19), COVID-19 by SARS-CoV-2 Infection
Treatment Placebo, hydroxychloroquine
Clinical Study IdentifierNCT04410562
SponsorBarcelona Institute for Global Health
Last Modified on2 February 2021


Yes No Not Sure

Inclusion Criteria

Are you female?
Do you have any of these conditions: Pathogen Infection Covid-19 Infection or *COVID-19 Infection or SARS-CoV-2 (COVID-19) Infection or Severe Coronavirus Disease (COVID-19) or Covid-19 o...?
Do you have any of these conditions: Coronavirus Disease (COVID-19) or Pregnancy Related or Community-acquired Pneumonia, Influenza, COVID-19 or Hospitalized Patients With Covid-19 Pneumo...?
Presenting with fever (37.5C) and/or one mild symptom suggestive of COVID-19 disease (cough, dyspnoea, chills, odynophagia, diarrhoea, muscle pain, anosmia, taste disorder, headache) OR contact of a SARS-CoV-2 confirmed or suspected case in the past 14 days
More than 12 weeks of gestation (dated by ultrasonography)
Agreement to deliver in the study hospitals

Exclusion Criteria

Known hypersensitivity to HCQ or other 4-aminoquinoline compounds
History of retinopathy of any aetiology
Concomitant use of digoxin, cyclosporine, cimetidine
Known liver disease
Clinical history of cardiac pathology including known long QT syndrome
Unable to cooperate with the requirements of the study
Participating in other intervention studies
Delivery onset (characterized by painful uterine contractions and variable changes of the cervix, including some degree of effacement and slower progression of dilatation up to 5 cm for first and subsequent labours)
Clear my responses

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