- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00142051
Inhaled Nitric Oxide for Pediatric Painful Sickle Crisis
February 14, 2023 updated by: Debra Weiner, Boston Children's Hospital
Randomized, double blind placebo controlled clinical trial to evaluate effectiveness and safety of inhaled nitric oxide for the treatment of sickle cell painful crisis in pediatric patients with sickle cell disease.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Detailed Description
The specific aim of this study is to evaluate the clinical effectiveness of inhaled nitric oxide (INO) for the treatment of acute vaso-occlusive pain crisis in pediatric patients with sickle cell disease.
Nitric oxide (NO) deficiency is known to be central to the pathophysiology of vaso-occlusion.
The aim is unchanged from the original application.
The study is a randomized, double blind, placebo controlled, clinical trial with eligible patients randomized to receive either NO (with 21% O2 final concentration) for 16 hrs with 8 hr wean (80 ppm 0-8 hrs, 40 ppm 9-16 hrs, 20 ppm 17-20 hrs, 10 ppm 21-24 hrs) or placebo (21% O2 alone) for 24 hrs.
The null hypothesis is that there is no difference in change in mean pain score after 16 hours between patients treated with NO and placebo.
The primary outcome measure of the study remains the difference in mean change in pain scores between groups as assessed using a 10 cm visual analogue pain scale (VAS).
Secondary outcome measures also remain the same.
The study is a next step to our completed FDA Orphan Product Development Grant funded study (FD-R-001686) that evaluated safety and efficacy of NO used for 4 hrs for treatment of vaso-occlusive crisis in pediatric patients with sickle cell disease.
Study Type
Interventional
Enrollment (Actual)
18
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Massachusetts
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Boston, Massachusetts, United States, 02115
- Children's Hospital Boston
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
9 years to 22 years (Child, Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Hemoglobin SS, Hemoglobin Sß0thal or Hemoglobin SC documented by prior hemoglobin electrophoresis.
- Age 9 years or greater, age 22 years or less; pediatric age range, old enough to comply with mask and give reliable pain assessment score.
- Acute pain crisis defined as pain in abdomen, back and/or extremities that cannot be explained by a diagnosis other than sickle cell disease.
- Initial pain score at least 6 cm; to optimize the likelihood of observing a significant difference in change in pain score between INO treated and placebo groups. Based on data from our previous study, it is anticipated that patients will have an average pre-inhalation pain score of approximately 8 cm.
Exclusion Criteria:
- > 24 pain crises in the last 12 months. Patients with very frequent pain crisis may have biologic and/or psychosocial pathophysiology that differs from those with fewer pain crises.
- Pain crisis treated at a medical facility within the last 12 hours.
- Use of investigational drugs other than hydroxyurea within the last 30 days.
- Significant respiratory compromise (initial SaO2 < 90%) and/or patients likely to have acute chest syndrome (chest pain and infiltrate) will be eliminated.
- Clinically significant acute or chronic cardiac dysfunction.
- Acute priapism.
- New focal neurologic symptoms.
- Concurrent documented or suspected bacterial or parvovirus infection.
- Temperature > 38.4ºC. These patients may have concomitant infection.
- Transfusion within 30 days or chronic transfusion therapy.
- Pregnant female
- Cigarette smoker > 1/2 ppd.
Allergy to morphine
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Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 1
inhaled NO
|
80 ppm 8 hrs, 40 ppm 8 hrs, 20 ppm 4 hrs, 10 ppm 4 hrs
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Placebo Comparator: 2
room air inhalation
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oxygen fi02 21% (room air)
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Difference in change in mean pain score (visual analog scale) after 16 hours of treatment between patients treated with INO and placebo.
Time Frame: every 4 hrs x duration of hospitalization
|
every 4 hrs x duration of hospitalization
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Secondary outcome measures to evaluate efficacy
Time Frame: Duration of hospitalization, followup
|
Duration of hospitalization, followup
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Longitudinal analyses of change in VAS pain score over 16 hours.
Time Frame: every 4 hrs, duration of hospitalization
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every 4 hrs, duration of hospitalization
|
Change in pain score using a 5 point descriptive scale and a 5 point relief scale.
Time Frame: every 4 hours duration of hospitalization
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every 4 hours duration of hospitalization
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Time to pain score less than 5 cm for 2 consecutive VAS pain assessments 4 hours apart and not using parenteral narcotics.
Time Frame: every 4 hrs, duration of hospitalization
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every 4 hrs, duration of hospitalization
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Use of pain medication: cumulative dose of parenteral narcotic pain medications.
Time Frame: While patient on parenteral narcotic
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While patient on parenteral narcotic
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Duration of hospitalization.
Time Frame: Time of discharge
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Time of discharge
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Inflammatory markers/mediators.
Time Frame: 0, 16 and q 24 hrs during hospitalization
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0, 16 and q 24 hrs during hospitalization
|
Secondary outcome measures to evaluate safety are:
Time Frame: 4, 8, 16, 24 hrs methb, constant NO2, 02 during inhalation
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4, 8, 16, 24 hrs methb, constant NO2, 02 during inhalation
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Maximum concentration of methemoglobin.
Time Frame: 0, 4, 8, 16, 24 hrs
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0, 4, 8, 16, 24 hrs
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Maximum concentration of nitrogen dioxide (NO2) delivered.
Time Frame: continuous over 24 hrs of inhalaiton
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continuous over 24 hrs of inhalaiton
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Minimum percent oxygen saturation of hemoglobin (by pulse oximetry).
Time Frame: continuous over 24 hrs of inhalation then every 4 hrs for duration of hospitalization
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continuous over 24 hrs of inhalation then every 4 hrs for duration of hospitalization
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Maximum and minimum vital signs: pulse, respiratory rate, blood pressure.
Time Frame: every 4 hrs during hospitalization
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every 4 hrs during hospitalization
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Debra Weiner, MD, PhD, Boston Children's Hospital
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Gladwin MT, Kato GJ, Weiner D, Onyekwere OC, Dampier C, Hsu L, Hagar RW, Howard T, Nuss R, Okam MM, Tremonti CK, Berman B, Villella A, Krishnamurti L, Lanzkron S, Castro O, Gordeuk VR, Coles WA, Peters-Lawrence M, Nichols J, Hall MK, Hildesheim M, Blackwelder WC, Baldassarre J, Casella JF; DeNOVO Investigators. Nitric oxide for inhalation in the acute treatment of sickle cell pain crisis: a randomized controlled trial. JAMA. 2011 Mar 2;305(9):893-902. doi: 10.1001/jama.2011.235.
- Weiner DL, Hibberd PL, Betit P, Cooper AB, Botelho CA, Brugnara C. Preliminary assessment of inhaled nitric oxide for acute vaso-occlusive crisis in pediatric patients with sickle cell disease. JAMA. 2003 Mar 5;289(9):1136-42. doi: 10.1001/jama.289.9.1136. Erratum In: JAMA. 2004 Aug 25;292(8):925.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
April 1, 2005
Primary Completion (Actual)
August 1, 2013
Study Completion (Actual)
August 1, 2013
Study Registration Dates
First Submitted
August 31, 2005
First Submitted That Met QC Criteria
August 31, 2005
First Posted (Estimate)
September 2, 2005
Study Record Updates
Last Update Posted (Estimate)
February 23, 2023
Last Update Submitted That Met QC Criteria
February 14, 2023
Last Verified
February 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Hematologic Diseases
- Genetic Diseases, Inborn
- Anemia
- Anemia, Hemolytic, Congenital
- Anemia, Hemolytic
- Hemoglobinopathies
- Anemia, Sickle Cell
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Vasodilator Agents
- Autonomic Agents
- Peripheral Nervous System Agents
- Protective Agents
- Bronchodilator Agents
- Anti-Asthmatic Agents
- Respiratory System Agents
- Antioxidants
- Free Radical Scavengers
- Endothelium-Dependent Relaxing Factors
- Gasotransmitters
- Nitric Oxide
Other Study ID Numbers
- 04-09-119
- FD-R-002560-01 (Other Grant/Funding Number: FDA)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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