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CompletedNCT07122232Updated Aug 14, 2025

Comparative Study of Thrombocytopenia in Plasmodium Vivax and Falciparum Malaria

An observational study in Malaria, Plasmodium Vivax Infection and Plasmodium Falciparum Infection, sponsored by Rafiullah Hotak. Completed at 1 site in Pakistan. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-08-14.

Sponsored by Rafiullah Hotak · Observational

Study type
Observational
Model
Other
Time perspective
Cross-sectional
Enrollment
177
Ages
18 Years and older
Sex
All
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Study summary

This study aimed to compare platelet count patterns in patients infected with either Plasmodium vivax or Plasmodium falciparum, the two most common malaria species in Pakistan. Thrombocytopenia (low platelet count) is a common complication of malaria and can help in identifying disease severity. We conducted this research at a tertiary care hospital in Peshawar, Pakistan, from April to September 2023. A total of 171 adult patients with confirmed malaria infections were enrolled. We measured their platelet counts at admission, day 3, and day 7, and analyzed the severity and progression of thrombocytopenia. The study found that while P. vivax was more common, P. falciparum was more likely to cause severe thrombocytopenia. Understanding these differences helps healthcare providers identify high-risk patients earlier and manage malaria more effectively. The study was approved by the institutional review board of Lady Reading Hospital, Peshawar.

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Conditions studied

  • Malaria
  • Plasmodium Vivax Infection
  • Plasmodium Falciparum Infection
  • Thrombocytopenia

Keywords

  • Thrombocytopenia
  • Plasmodium falciparum
  • Malaria complications
  • Platelet count dynamics
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In context

Malaria

1,299 studies on the registry are indexed under Malaria; 86 are open to participants now.

This study's enrollment of 177 is below the median of 600 across 218 observational studies indexed under Malaria.

Browse Malaria studies →

Lead sponsor

This is the only study on the registry with Rafiullah Hotak as lead sponsor.

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

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Adult patients (aged 18 and above) presenting to a tertiary care hospital in Peshawar, Pakistan, with confirmed malaria infection. Participants were included based on microscopic confirmation of either Plasmodium vivax or Plasmodium falciparum infection and evaluated for platelet trends and clinical outcomes.

Inclusion criteria

  • Age 18 years or older
  • Microscopically confirmed infection with Plasmodium vivax or Plasmodium falciparum
  • Provided written informed consen

Exclusion criteria

Exclusion Criteria:

  • Mixed-species malaria infection
  • Known hematologic disorders
  • Chronic liver disease
  • Recent blood transfusion
  • Use of anticoagulant medication
  • Incomplete parasitemia data or lost to follow-up
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Study design

Observational model
Other
Time perspective
Cross-sectional
Enrollment
177 participants (actual)
Patient registry
No

Groups and cohorts

  • Plasmodium vivax Group

    Adult patients (≥18 years) with microscopically confirmed Plasmodium vivax malaria. Platelet counts and clinical data were collected at admission, day 3, and day 7 to assess the frequency and severity of thrombocytopenia.

  • Plasmodium falciparum Group

    Adult patients (≥18 years) with microscopically confirmed Plasmodium falciparum malaria. Platelet counts and clinical data were collected at admission, day 3, and day 7 to assess the frequency and severity of thrombocytopenia.

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What researchers measure

Primary outcomes

  1. Proportion of patients with thrombocytopenia

    The percentage of patients with platelet counts \<50×10³/µL at admission, compared between the P. vivax and P. falciparum groups.

    Time frame: 0 days

Secondary outcomes

  1. Platelet count recovery over time

    Change in mean platelet count at admission, day 3, and day 7, for each group.

    Time frame: Day 0 to Day 7

Other outcomes

  1. Frequency of malaria-related complications

    Number of patients developing clinical complications (e.g., acute kidney injury, neurological involvement, anemia, jaundice), stratified by malaria species.

    Time frame: Within 7 days of admission

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Study locations

1 site
  • Lady Reading Hospital, Medical Teaching Institution
    Peshawar, KPK 25000, Pakistan
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07122232
Lead sponsor
Rafiullah Hotak
Collaborators
Lady Reading Hospital, Pakistan
Responsible party
Rafiullah Hotak (Student, Nangarhar University) — Sponsor-investigator
First posted
Aug 14, 2025
Start date
Apr 1, 2023
Primary completion
Sep 30, 2023
Completion
Sep 30, 2023
Last update
Aug 14, 2025

Study contacts

Rafiullah Hotak, MBBS
principal investigator · Nangarhar University faculty of medicine

Oversight

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

Not currently enrolling

This study is completed, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.

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