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Evaluating the Efficiency and Tolerability of the Oxygenating Bite Block

Evaluating the Efficiency and Tolerability of the Oxygenating Bite Block

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07086378
Acronym
OBB
Enrollment
10
Registered
2025-07-25
Start date
2025-07-28
Completion date
2025-12-02
Last updated
2025-12-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Airway Anesthesia, Airway Control, Airway Management, Endoscopy, Digestive System

Keywords

airway management, Upper endoscopy

Brief summary

This study will test an investigational bite block, which is a device placed inside the mouth to protect the teeth and used to keep the endoscope (a long, flexible tube that is placed down the throat and into the esophagus that contains a light and camera used to provide a visual of the area) in place. This Oxygenating bite block has been modified to allow the convenient use of an oral nasal cannula for administration of oxygen and sampling of end-tidal carbon dioxide (measurement of the amount of carbon dioxide exhaled at the end of a breath) during endoscopic procedures.

Detailed description

This study will last one day and is completely voluntary. The primary objective of this study is to evaluate the tolerability and efficacy of the device. The investigator will be testing how this device improves the flow of oxygen and provides safer sedation.

Interventions

DEVICEOxygenating Bite Block

Oxygenating Bite Block will be used instead of the standard bite block.

Sponsors

Cedars-Sinai Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DEVICE_FEASIBILITY
Masking
NONE

Intervention model description

Pilot study (ten subjects)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Obese patients scheduled to undergo upper endoscopy, * Willingness and ability to sign an informed consent document, * ASA class I - III obese adults, * Subjects will be of diverse racial and ethnic backgrounds.

Exclusion criteria

* Patients deemed to be at significant airway risk, * Under 18 years of age, since there is no justification to include them, * Missing or loose incisor or canine teeth * Temporomandibular joint disease * Maxillofacial abnormalities (deformities of the jaw, lips, and tongue) * Pregnant women, since there is no justification to include them, * Emergency surgeries, * Any other conditions that may interfere with the conduct of the study.

Design outcomes

Primary

MeasureTime frameDescription
OBB Device FeasibilityDuring the upper endoscopy procedureSPO2 -Subject desaturation

Secondary

MeasureTime frameDescription
Tolerability of the Oxygenating Bite Block - PatientsAfter the endoscopy, up to 5 minutesQuestionnaire Satisfaction with the level of sedation and OBB tolerability?
Tolerability of the Oxygenating Bite Block - AnesthesiologistAfter the endoscopy, up to 5 minutesQuestionnaire Was the OBB easy to use, protected the subject's oral cavity, and oxygenated effectively?
Tolerability of the Oxygenating Bite Block - EndoscopistAfter the endoscopy, up to 5 minutesQuestionnaire - Endoscopist Did your patient tolerate the OBB well, and will you use it again?

Countries

United States

Participant flow

Participants by arm

ArmCount
Oxygenating Bite Block (OBB)
During the endoscopy procedure, the OBB was placed in the mouth rather than the standard BB. After the endoscopy procedure, the participant will be asked to complete a short questionnaire to find out their satisfaction with the level of sedation during the procedure, the tolerability of the device, and any discomfort. OBB was used instead of the standard bite block.
10
Total10

Baseline characteristics

CharacteristicOxygenating Bite Block (OBB)
Age, Continuous59 years
STANDARD_DEVIATION 13
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
3 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
7 Participants
Region of Enrollment
United States
10 Participants
Sex: Female, Male
Female
7 Participants
Sex: Female, Male
Male
3 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 10
other
Total, other adverse events
0 / 10
serious
Total, serious adverse events
0 / 10

Outcome results

Primary

OBB Device Feasibility

SPO2 -Subject desaturation

Time frame: During the upper endoscopy procedure

Population: SpO2 \< 90%

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Oxygenating Bite Block (OBB)OBB Device Feasibility3 Participants
Secondary

Tolerability of the Oxygenating Bite Block - Anesthesiologist

Questionnaire Was the OBB easy to use, protected the subject's oral cavity, and oxygenated effectively?

Time frame: After the endoscopy, up to 5 minutes

Population: Anesthesiologists expressed that the OBB was easy to use, protected the subject's oral cavity, and oxygenated effectively.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Oxygenating Bite Block (OBB)Tolerability of the Oxygenating Bite Block - Anesthesiologist10 Participants
Secondary

Tolerability of the Oxygenating Bite Block - Endoscopist

Questionnaire - Endoscopist Did your patient tolerate the OBB well, and will you use it again?

Time frame: After the endoscopy, up to 5 minutes

Population: Endoscopists expressed that the OBB was well tolerated and will you use it again.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Oxygenating Bite Block (OBB)Tolerability of the Oxygenating Bite Block - Endoscopist10 Participants
Secondary

Tolerability of the Oxygenating Bite Block - Patients

Questionnaire Satisfaction with the level of sedation and OBB tolerability?

Time frame: After the endoscopy, up to 5 minutes

Population: All subjects (100%) expressed satisfaction with the level of sedation and OBB tolerability

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Oxygenating Bite Block (OBB)Tolerability of the Oxygenating Bite Block - Patients10 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026