Please assess the completion status of the following clinical trial:

Trial Title: Inhaled Nitric Oxide for Pediatric Painful Sickle Crisis

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. Hemoglobin SS, Hemoglobin Sß0thal or Hemoglobin SC documented by prior hemoglobin electrophoresis.~2. 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.~3. Acute pain crisis defined as pain in abdomen, back and/or extremities that cannot be explained by a diagnosis other than sickle cell disease.~4. 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:~1. \> 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.~2. Pain crisis treated at a medical facility within the last 12 hours.~3. Use of investigational drugs other than hydroxyurea within the last 30 days.~4. Significant respiratory compromise (initial SaO2 \< 90%) and/or patients likely to have acute chest syndrome (chest pain and infiltrate) will be eliminated.~5. Clinically significant acute or chronic cardiac dysfunction.~6. Acute priapism.~7. New focal neurologic symptoms.~8. Concurrent documented or suspected bacterial or parvovirus infection.~9. Temperature \> 38.4ºC. These patients may have concomitant infection.~10. Transfusion within 30 days or chronic transfusion therapy.~11. Pregnant female~12. Cigarette smoker \> 1/2 ppd.~13. Allergy to morphine~    -

- Gender: ALL
- Minimum Age: 9 Years
- Maximum Age: 22 Years
- Healthy Volunteers: f

Study Arms:
- 1 (Type: EXPERIMENTAL): inhaled NO
- 2 (Type: PLACEBO_COMPARATOR): room air inhalation

Based on this trial design, predict the completion outcome and termination type (if applicable).