Your goal is to extract structured information from the user's input that matches the form described below. When extracting information please make sure it matches the type information exactly. Do not add any attributes that do not appear in the schema shown below.

```TypeScript

 { // Information on the clinical trial characteristics from the abstract
 conditions: string // The condition or disease being treated in the clinical trial
 drug_or_intervention: string // The drug or intervention used in the clinical trial
}
```


Please output the extracted information in JSON format. Do not output anything except for the extracted information. Do not add any clarifying information. Do not add any fields that are not in the schema. If the text contains attributes that do not appear in the schema, please ignore them. All output must be in JSON format and follow the schema specified above. Wrap the JSON in <json> tags.



Input:A prospective, randomized, comparative trial evaluating respiratory depression during patient-controlled versus anesthesiologist-administered propofol-remifentanil sedation for elective colonoscopy.  Patient-controlled sedation (PCS) with propofol-remifentanil (PR) is associated with rapid sedation and recovery, but it is associated with a greater requirement for airway rescue than PCS with midazolam-fentanyl. To demonstrate that respiratory depression associated with PR is more frequent during anesthesiologist-administered sedation (AAS) than during PCS. Prospective, randomized, open-label study. Academic medical center. Fifty patients undergoing elective colonoscopy. PCS or AAS using PR. All patients breathed 100% oxygen via an anesthesia mask with continuous spirometry and bispectral index (BIS). Respiratory rate and BIS. Colonoscopy was completed in all patients. No patient under PCS required airway rescue. Five patients under AAS required bag-mask ventilation to resolve Sao(2) (arterial oxygen saturation) less than 90% lasting longer than 30 seconds. The median BIS for the AAS group was 71.7 (range 61.06-82.34) and 88.1 (range 83.15-93.05) for the PCS group. Median respiratory rates were 5.97 (range 1.21-10.73) breaths per minute for AAS and 13.19 (range 9.54-16.84) for PCS. Respiratory rates less than 2 breaths per minute composed 28% of the procedure time for AAS, but only 5% for PCS. Patients under PCS had lower median predicted effect site concentrations for PR, but were able to achieve brief peak levels exceeding those with AAS. These differences were significant (P < .001). Potential for bias with AAS. Patients undergoing colonoscopy with PR are significantly more likely to require intervention for hypoventilation compared with PCS. ( NCT00868920.). Output:
{'conditions': 'Colonoscopy', 'interventions': 'Other: patient control of pump|Other: anesthesiologist controlled sedation'}