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RecruitingNCT07909616Updated Nov 2, 2026

Respiratory Physiotherapy and Inflammatory Biomarkers in Critically Ill Patients With Pneumonia

An observational study in Pneumonia and Critical Illness, sponsored by Hospital H+ Queretaro. Recruiting at 1 site in Mexico. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-02.

Sponsored by Hospital H+ Queretaro · Observational

From the registry’s dates

  • Started Sep 2026; still recruiting 1 month later.
Updated Nov 2, 2026Newly registeredGo to Updates ↓
Study type
Observational
Model
Cohort
Time perspective
Other
Enrollment
180
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this observational study is to evaluate the safety and impact of a protocolized respiratory physiotherapy program on the dynamics of systemic inflammatory biomarkers (procalcitonin [PCT] and C-reactive protein [CRP]) in critically ill adult patients with pneumonia in the intensive care unit (ICU), compared with standard medical care.

The main questions it aims to answer are:

Does a protocolized respiratory physiotherapy program accelerate the decline of PCT and CRP levels in critically ill patients with pneumonia compared to standard care? What is the incidence and safety profile of adverse events (e.g., transient desaturation, hemodynamic instability, or mechanical displacement) associated with respiratory physiotherapy sessions?

Researchers will compare a prospective cohort receiving structured respiratory physiotherapy against a historical control group receiving standard care to determine changes in inflammatory trajectories and ICU length of stay. Participants in the prospective intervention group will:

  • Receive an individualized, protocolized respiratory physiotherapy regimen (including high-frequency chest wall oscillation [HFCWO], intrapulmonary acoustic percussion, positive expiratory pressure [PEP], and/or inspiratory muscle training [IMT]) tailored to their clinical deficits.
  • Undergo continuous safety monitoring during and up to 30 minutes following each physiotherapy session.
  • Have serum PCT and CRP levels measured at baseline (T0), Day 3 (T1), Day 7 (T2), and at ICU discharge (T3).
02

Conditions studied

  • Pneumonia
  • Critical Illness

Keywords

  • Respiratory Physiotherapy
  • Procalcitonin
  • C-Reactive Protein
  • Intensive Care Unit
  • Inflammatory Biomarkers
03

In context

Pneumonia

2,076 studies on the registry are indexed under Pneumonia; 288 are open to participants now.

This study's planned enrollment of 180 is close to the median of 200 across 699 observational studies indexed under Pneumonia.

Browse Pneumonia studies →

Lead sponsor

Hospital H+ Queretaro is the lead sponsor of 13 studies on the registry; 6 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Consecutive adult critically ill patients admitted to a tertiary care polyvalent Intensive Care Unit (ICU) with a confirmed diagnosis of severe pneumonia (community-acquired or nosocomial/ventilator-associated) requiring intensive management and an anticipated ICU stay of at least 48 hours. The study population consists of a prospective intervention cohort receiving protocolized respiratory physical therapy and a historical control cohort managed with standard medical care.

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

  • Consecutive adult patients (age >= 18 years at the time of admission).
  • Confirmed diagnosis of pneumonia (community-acquired, hospital-acquired, or ventilator-associated pneumonia) as the primary cause of ICU admission or critical complication.
  • Anticipated or actual ICU length of stay >= 48 hours.

Exclusion criteria

Exclusion Criteria:

  • Presence of limitation of medical treatment orders or exclusively palliative management upon admission.
  • Concomitant severe non-infectious systemic inflammatory diseases that massively alter or mask procalcitonin response (e.g., severe acute pancreatitis, extensive burns).
  • Refractory hemodynamic instability or uncontrolled septic shock with escalating vasopressor requirements that contraindicate physical manipulation.
05

Study design

Observational model
Cohort
Time perspective
Other
Enrollment
180 participants (estimated)
Patient registry
No

Groups and cohorts

  • Prospective Intervention Group

    Adult patients admitted to the ICU with a confirmed diagnosis of pneumonia who receive an individualized, protocolized respiratory physiotherapy program (including high-frequency chest wall oscillation, intrapulmonary acoustic percussion, positive expiratory pressure, and inspiratory muscle training) alongside standard care.

    Other: Protocolized Respiratory Physiotherapy Program

  • Historical Control Group

    Retrospective historical cohort of adult patients admitted to the ICU with pneumonia who received standard medical, ventilatory, and nursing care without specialized protocolized respiratory physiotherapy.

Interventions

  • OtherProtocolized Respiratory Physiotherapy Program

    Structured and dosed respiratory physical therapy regimen comprising high-frequency chest wall oscillation (HFCWO), intrapulmonary acoustic percussion, positive expiratory pressure (PEP), and inspiratory muscle training (IMT), aimed at optimizing pulmonary mechanics and clearing secretions.

06

What researchers measure

Primary outcomes

  1. Adjusted Change in Procalcitonin (PCT) Levels

    Evaluates the adjusted change in serum procalcitonin levels from baseline across standardized time points (Day 3, Day 7, and ICU discharge) between the prospective intervention cohort and the historical control group using generalized linear mixed models (GLMM) with restricted cubic splines.

    Time frame: Baseline, Day 3, Day 7, and up to ICU discharge (approx. 48 hours to length of stay)

Secondary outcomes

  1. Adjusted Change in C-Reactive Protein (CRP) Levels

    Evaluates the adjusted change in serum C-reactive protein levels from baseline to subsequent time points during ICU stay.

    Time frame: Baseline, Day 3, Day 7, and at ICU discharge (up to 30 days)

  2. Intensive Care Unit (ICU) Length of Stay

    Total duration of stay in the intensive care unit measured in days, analyzed jointly with inflammatory evolution.

    Time frame: From ICU admission until ICU discharge or death (up to 30 days or hospital follow-up)

  3. Incidence of Adverse Events Associated with Respiratory Physiotherapy

    Absolute incidence, type, and frequency of acute adverse events (severe transient desaturation, hemodynamic instability/vasopressor increase, or mechanical displacement) occurring during or within 30 minutes post-intervention.

    Time frame: During or within 30 minutes following each physiotherapy session (up to 30 days of ICU stay)

07

Study locations

1 of 1 sites recruiting
  • Hospital H+ Querétaro, Santiago de Querétaro, Querétaro
    Querétaro, Mexico
    Recruiting
08

Timeline

1 registry update 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

Started Sep 2026 (actual). Primary completion is estimated for Nov 2026, 2 months after the start.

Of 273 non-industry observational studies under Pneumonia, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 13 and three quarters within 56. This study's planned 2 months is below that.

Counting every sponsor, half of 281 studies reached it within 25 months; a quarter within 14 and three quarters within 53.

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

Registered
Oct 19, 2026
First posted
Nov 2, 2026
StartActual
Sep 8, 2026
Primary completionEst.
Nov 30, 2026
CompletionEst.
Dec 1, 2026
Last update
Nov 2, 2026
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.
Registered
First appeared on the registry. No changes since
Nov 2, 2026
Show all 1 update
  1. Nov 2, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07909616
Lead sponsor
Hospital H+ Queretaro
Responsible party
Jose J Zaragoza, MD MSc (Dr, Hospital H+ Queretaro) — Principal investigator
First posted
Nov 2, 2026
Start date
Sep 8, 2026
Primary completion
Nov 30, 2026 (estimated)
Completion
Dec 1, 2026 (estimated)
Last update
Nov 2, 2026

Study contacts

LAURA RAQUEL TREVIÑO ROCHA
Contact
lauratvrocha@gmail.com
442 111 7104 ext. +52

Oversight

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

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