ClinicalTrials.gg
CompletedNCT03399318Updated Mar 5, 2024Results posted

Aggressive Antipyretics for Fever Reduction in CNS Malaria

A Phase 2 interventional study of Acetaminophen and Ibuprofen in Malaria, Seizures and Coma, sponsored by University of Rochester. Completed at 3 sites in 2 countries. Open to participants aged 2 Years to 11 Years. Per ClinicalTrials.gov, last updated 2024-03-05.

Sponsored by University of Rochester · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
256
Allocation
Randomized
Ages
2 Years to 11 Years
Sex
All
01

Study summary

The study will examine whether prophylactic and scheduled treatment with acetaminophen and ibuprofen can decrease the maximum temperature experienced during the acute illness in children with CNS malaria.

Read the detailed description

Despite ongoing eradication efforts, malaria remains a major public health challenge in Africa where annually, \~250,000 children with malaria experience a neurologic injury with subsequent neurodisability. In other central nervous system (CNS) disorders, fever is a recognized cause of worsening secondary neurologic injury and ex-tensive efforts are made to avoid hyperthermia or induce hypothermia for neuroprotection. Evidence indicates that among children with CNS malaria a higher temperature during the acute illness is a risk factor for post-infectious neurologic sequelae. As such, aggressive antipyretic therapy may be warranted, at least among children with complicated malaria who are at substantial risk of brain injury. Previous clinical trials conducted primarily in children with uncomplicated malaria and using only a single antipyretic medication have shown limited benefits in terms of fever reduction; however, no studies to date have examined malaria fever management using dual therapies. Enthusiasm for aggressive fever reduction measures among clinicians caring for children with malaria has been curbed by in vitro findings that malaria parasite replication slows at higher temperatures and a single clinical trial in which peripheral parasite clearance was slower in children receiving treatment for fever. However, the relationship between temperature and malaria parasite behavior is complex. Additional in vitro data suggest that at febrile temperatures uninfected red blood cells (RBCs) are more likely to adhere to infected RBCs, worsening the process of sequestration, increasing the parasite burden obstructing microvascular cerebral blood flow, and perhaps contributing to ongoing immunopathogenesis in CNS malaria. In this exploratory clinical trial of aggressive antipyretic therapy, children hospitalized with CNS malaria will be randomized to usual care (acetaminophen every 6 hours for a temperature ≥ 38.5ºC) vs. prophylactic acetaminophen and ibuprofen every 6 hours for 72 hours. This proof-of-concept study will determine whether aggressive antipyretic therapy results in a lower mean maximum temperature relative to usual care. Serial quantitative levels of histidine rich protein 2 (HRP2), a P. falciparum-specific protein that facilitates estimates of whole body parasite burden and CNS parasite sequestration, will also be collected to clarify the relationship between antipyretic use and in vivo parasite behavior. Findings from this study will determine whether a Phase III clinical trial of aggressive antipyretics for neuroprotection in pediatric CNS malaria should be undertaken. This study will take place in Zambia and Malawi, where prior NIH-funded collaborations have assisted in developing the substantial infrastructure needed to undertake a clinical trial of this nature.

02

Conditions studied

  • Malaria
  • Seizures
  • Coma
  • Parasitemia
  • Hyperpyrexia
  • Fever

Keywords

  • HRP2
03

In context

Malaria

1,184 studies on the registry are indexed under Malaria; 79 are open to participants now.

This study's enrollment of 256 is close to the median of 252 across 937 interventional studies indexed under Malaria.

Browse Malaria studies →

Lead sponsor

University of Rochester is the lead sponsor of 729 studies on the registry; 116 are open to participants now.

Of its 56 completed or terminated interventional studies of FDA-regulated products, 44 (79%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
2 Years to 11 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Evidence of Plasmodium falciparum malaria infection by peripheral blood smear or rapid diagnostic test
  • Central nervous system (CNS) symptoms associated with malaria. CEREBRAL MALARIA (CM): Impaired consciousness with a Blantyre Coma Score (BCS)(73) ≤2 in children under 5 years or a Glasgow Coma score (GCS) ≤10 in children ≥5 years OR CNS MALARIA: Complicated seizure(s), meaning prolonged (>15 minutes), focal or multiple; or impaired consciousness or other evidence of impaired consciousness (confusion, delirium) without frank coma (BCS>2, GCS =11-14)

Exclusion criteria

Exclusion Criteria:

  • Circulatory failure (cold extremities, capillary refill > 3 seconds, sunken eyes, ↓ skin turgor)
  • Vomiting in the past 2 hours
  • Serum creatinine (Cr) > 1.2 mg/dL
  • A history of liver disease
  • Jaundice or a total of >3.0mg/dL
  • A history of gastric ulcers or gastrointestinal bleeding
  • A history of thrombocytopenia or other primary hematologic disorder
  • Petechiae or other clinical indications of bleeding abnormalities
  • A known allergy to ibuprofen, acetaminophen, aspirin or any non-steroidal medication
  • Any for nasogastric tube (NGT) placement and/or delivery of enteral medications
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
256 participants (actual)

Study arms

  • Experimental
    Aggressive Antipyretics

    regardless of temperature, children allocated to this arm will receive acetaminophen (30 milligrams (mg)/ kilogram (kg) load then 15mg/kg Q6 hours) and ibuprofen (10mg/kg Q 6 hours) for 72 hours. Pediatric syrup formulations of both agents will be administered orally or via nasogastric tube. For temperatures over 38.5 degrees Celsius, placebo will be added and if the fever persists, a cooling fan will be added.

    Drug: Acetaminophen · Drug: Ibuprofen

  • Placebo comparator
    Usual Care

    will receive placebo for acetaminophen and placebo for ibuprofen. If they have a temperature over 38.5 degrees Celsius, they will receive acetaminophen (15mg/kg, Q6 hours), as needed. If the fever persists, a cooling fan will be added.

    Drug: placebo for acetaminophen · Drug: placebo for ibuprofen

Interventions

  • 30 mg/kg load then 15mg/kg Q6 hours for the Aggressive Antipyretic Arm Acetaminophen is also given to children in the placebo arm when they have a fever over 38.5 degrees Celsius during scheduled clinical assessments

    Also known as: Paracetamol

  • 10 mg/kg Q6 hours for the Aggressive Antipyretic Arm

    Also known as: Brufen

  • Drugplacebo for acetaminophen

    placebo for acetaminophen for children in the Usual Care arm For children in the Aggressive Antipyretic Arm, when they have a temperature over 38.5 degrees Celsius they are treated with a placebo

    Also known as: Placebo

  • Drugplacebo for ibuprofen

    placebo for ibuprofen

    Also known as: Placebo

06

What researchers measure

Primary outcomes

  1. Mean Maximum Temperature

    Mean maximum temperature (Tmax). Tmax will be defined as the highest temperature during the study duration (72 hours) in degrees Celsius recorded by a continuous temperature monitor. The continuous temperature monitors are not magnetic resonance imaging (MRI) compatible. If TMAX is a clinical temperature obtained when continuous monitoring data is not available, the clinical TMAX will be used as the primary outcome.

    Time frame: 72 hours

  2. Seizure Severity

    Seizures were categorized as none, single and brief, or multiple or prolonged, yielding a three-category outcome.

    Time frame: 72 hours

Secondary outcomes

  1. Parasite Clearance

    Parasite clearance was based upon AUC for plasma HRP2 concentration every six hours

    Time frame: 72 hours

  2. Area-under-the-curve (AUC) of Fever ≥ 38.5°C (Best)

    AUC fever for temperatures above 37.5 degrees Celsius based upon continuous temperature monitoring A secondary efficacy measure included fever exposure as measured by the area under the temperature × time curve for T≥38.5°C during the 72-hour follow-up period, categorized as 0, \> 0 and \< 2, and ≥ 2 degree-hours. An ordinal logistic regression model assuming proportional odds with terms for treatment group, country, and disease severity as covariates was used to derive the estimated adjusted treatment group odds ratio and associated 95% confidence interval. Sensitivity analyses with best-case and worst-case imputation were performed to accommodate missing data for the 12 participants with insufficient temperature data to determine the proper outcome category

    Time frame: 72 hours

07

Results

Posted Mar 5, 2024

Participant flow

The trial was conducted in Malawi and Zambia from 2019 to 2022. In Malawi, enrolment occurred at Queen Elizabeth Central Hospital in Blantyre. In Zambia, the trial was conducted at the University Teaching Hospital in Lusaka and Chipata Central Hospital in the Eastern Province. This work was approved by the appropriate ethics review boards in Zambia and Malawi and at the University of Rochester in the United States.

Participant flow — Overall Study
MilestoneAggressive Antipyretics (AA)Usual Care (UC).
Started128128
Completed128128
Not completed00

Outcome measures

PrimaryMean Maximum Temperature

Mean maximum temperature (Tmax). Tmax will be defined as the highest temperature during the study duration (72 hours) in degrees Celsius recorded by a continuous temperature monitor. The continuous temperature monitors are not magnetic resonance imaging (MRI) compatible. If TMAX is a clinical temperature obtained when continuous monitoring data is not available, the clinical TMAX will be used as the primary outcome.

Time frame:
72 hours
Reported as:
Mean · degrees of Celsius
Mean Maximum Temperature
degrees of CelsiusAggressive Antipyretics (AA)Usual Care (UC).
Mean Maximum Temperature38.6 (38.4 to 38.7)39.2 (39.1 to 39.3)
Statistical analysis
  • Aggressive Antipyretics (AA) vs Usual Care (UC). · t-test, 2 sided · p = <0.0001 (treatment group as the factor of interest, country and disease severity 207 (CM=yes, no) as stratification factors, and admission temperature as a covariate. A t-test for significance of the treatment effect, were derived from this model.)
PrimarySeizure Severity

Seizures were categorized as none, single and brief, or multiple or prolonged, yielding a three-category outcome.

Time frame:
72 hours
Reported as:
Count of participants · Participants
Seizure Severity
ParticipantsAggressive Antipyretics (AA)Usual Care (UC).
None10788
Single and brief106
Multiple or Prolonged1034
Statistical analysis
  • Aggressive Antipyretics (AA) vs Usual Care (UC). · Regression, Logistic · p = <0.05 · Odds ratio (or): 0.09 · 95% CI .03 to .27
SecondaryParasite Clearance

Parasite clearance was based upon AUC for plasma HRP2 concentration every six hours

Time frame:
72 hours
Reported as:
Median · ng*hr/mL
Parasite Clearance
ng*hr/mLAggressive Antipyretics (AA)Usual Care (UC).
Parasite Clearance86.3 (78.2 to 94.4)80 (71.5 to 88.4)
Statistical analysis
  • Aggressive Antipyretics (AA) vs Usual Care (UC). · ANCOVA · p = <0.05 (The covariance matrix for the within-participant observations was 232 modeled using an unstructured pattern.) · Odds ratio, log: 6.3 · 95% CI -5.1 to 17.7The adjusted treatment group difference in mean area 233 under the log10(HRP2 level) × time curve was estimated using appropriate contrasts among the 234 treatment group means over time that quantify this comparison.
SecondaryArea-under-the-curve (AUC) of Fever ≥ 38.5°C (Best)

AUC fever for temperatures above 37.5 degrees Celsius based upon continuous temperature monitoring A secondary efficacy measure included fever exposure as measured by the area under the temperature × time curve for T≥38.5°C during the 72-hour follow-up period, categorized as 0, \> 0 and \< 2, and ≥ 2 degree-hours. An ordinal logistic regression model assuming proportional odds with terms for treatment group, country, and disease severity as covariates was used to derive the estimated adjusted treatment group odds ratio and associated 95% confidence interval. Sensitivity analyses with best-case and worst-case imputation were performed to accommodate missing data for the 12 participants with insufficient temperature data to determine the proper outcome category

Time frame:
72 hours
Reported as:
Count of participants · Participants
Area-under-the-curve (AUC) of Fever ≥ 38.5°C (Best)
ParticipantsAggressive Antipyretics (AA)Usual Care (UC).
06737
> 0 and < 24754
≥ 21437
Statistical analysis
  • Aggressive Antipyretics (AA) vs Usual Care (UC). · Regression, Logistic · p = <0.05 (An ordinal logistic regression model assuming 216 proportional odds with terms for treatment group, country, and disease severity as covariates was used to derive the estimated adjusted treatment group odds ratio and 95%CI) · Odds ratio (or): .32 · 95% CI .20 to .52Sensitivity analyses with best-case and worst-case imputation were 219 performed to accommodate missing data

Adverse events

Collected over 72 hours. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Aggressive Antipyretics (AA)3/128 (2.3%)15/128 (11.7%)102/128 (79.7%)
Usual Care (UC).10/128 (7.8%)25/128 (19.5%)87/128 (68%)
Most frequent serious events
Most frequent serious events
EventAggressive Antipyretics (AA)Usual Care (UC).
DeathGeneral disorders3/12810/128
Neurologic deficits at dischargeNervous system disorders9/12810/128
Creatinine increaseRenal and urinary disorders3/1280/128
Any bleedingVascular disorders0/1281/128
Clinical signs of bleedingVascular disorders0/1281/128
ShockGeneral disorders0/1281/128
Shock with necrotic digitsVascular disorders0/1281/128
Status epilepticus and prolonged apneaNervous system disorders0/1281/128
Most frequent other events
Showing 10 of 16
Most frequent other events
EventAggressive Antipyretics (AA)Usual Care (UC).
HyperbilirubinemiaHepatobiliary disorders64/12866/128
Creatinine increaseRenal and urinary disorders61/12848/128
Elevated lactateMetabolism and nutrition disorders12/12819/128
Any bleedingVascular disorders17/1289/128
Bleeding occultBlood and lymphatic system disorders12/1287/128
VomitingGeneral disorders10/1289/128
Clinical signs of bleedingVascular disorders5/1282/128
HypoglycemiaMetabolism and nutrition disorders0/1283/128
DiarrheaGastrointestinal disorders1/1282/128
Fell from bedGeneral disorders2/1282/128

Baseline characteristics

Eligible children were 24-132 months of age with evidence of P. falciparum infection, based upon a thick peripheral blood smear or rapid diagnostic test, and symptoms of CNS malaria including complicated seizures (multiple seizures, focal seizures or prolonged seizures lasting more than 15 minutes) or impaired consciousness

Age, Continuous
Age, Continuous(years)Aggressive Antipyretics (AA)Usual Care (UC).Total
Median4.4 (2.9 to 6.6)3.8 (2.8 to 5.1)4.1 (2.9 to 5.9)
Sex: Female, Male
Sex: Female, Male(Participants)Aggressive Antipyretics (AA)Usual Care (UC).Total
Female5956115
Male6972141
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Aggressive Antipyretics (AA)Usual Care (UC).Total
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American128128256
White000
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(Participants)Aggressive Antipyretics (AA)Usual Care (UC).Total
Malawi7472146
Zambia5456110
Weight
Weight(units on a scale - kg)Aggressive Antipyretics (AA)Usual Care (UC).Total
Mean15.1 ± 4.414.0 ± 3.214.6 ± 3.8
Admission temperature
Admission temperature(degrees of Celsius (°C))Aggressive Antipyretics (AA)Usual Care (UC).Total
Mean38.1 ± 1.338.1 ± 1.338.1 ± 1.3
Cerebral malaria
Cerebral malaria(Participants)Aggressive Antipyretics (AA)Usual Care (UC).Total
Count of participants8372155
Blantyre Coma Score
Blantyre Coma Score(Participants)Aggressive Antipyretics (AA)Usual Care (UC).Total
0268
1222749
2485098
3211637
4121123
5231841

8 further baseline measures are reported on the registry.

08

Study locations

3 sites
  • Pediatric Research Ward at Queen Elizabeth Central Hospital
    Blantyre, Malawi
  • Chipata Central Hospital
    Chipata, Eastern, Zambia
  • University Teaching Hospital's Lusaka Childrens Hospital
    Lusaka, Zambia
09

References and documents

Publications

  • Tembo D, Mwanza S, Mwaba C, Dallah I, Wa Somwe S, Seydel KB, Birbeck GL. Risk factors for acute kidney injury at presentation among children with CNS malaria: a case control study. Malar J. 2022 Nov 1;21(1):310. doi: 10.1186/s12936-022-04327-y. PubMed 36316704 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2019 to primary completion in Dec 2022, 46 months.

Results were first posted in Mar 2024, 1 year 3 months after primary completion. A results delay was requested in Jun 2023.

Of 39 phase 2 interventional studies under Malaria, half reached primary completion within 16 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 27. This study's 46 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 17, 2017
First posted
Jan 16, 2018
StartActual
Jan 7, 2019
Primary completionActual
Dec 2, 2022
CompletionActual
Dec 2, 2022
Results delay requested
Jun 7, 2023
Results first posted
Mar 5, 2024
Last update
Mar 5, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 5, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03399318
Responsible party
Gretchen Birbeck (Professor, University of Rochester) — Principal investigator
First posted
Jan 16, 2018
Start date
Jan 7, 2019
Primary completion
Dec 2, 2022
Completion
Dec 2, 2022
Results posted
Mar 5, 2024
Last update
Mar 5, 2024

Study contacts

Gretchen L Birbeck, MD
principal investigator · University of Rochester

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Acetaminophen · Ibuprofen

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