Sustainable DevelopmentNCT05921136
Recycling Potential in Endoscopy - a Multicentre Prospective Observational Study
An observational study of Sustainable Development, run by Johann Wolfgang Goethe University Hospital at 4 sites in Germany.
Trial summary
The present trial is an observational prospective trial. The aim of the present study is to analyse the recycling potential in endoscopy units in hospitals and outpatient facilities. For this purpose, waste is collected for four weeks each at four locations (two inpatient and two outpatient facilities). Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Sustainable Development
- How many people
- 2,000 participants
- Where
- 4 sitesGermany
- Study dates
- 12 Jun 2023to 30 Oct 2023
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: No patients will be included but only the garbage after the procedures unrelated to patients.
Who may be able to join
- Endoscopic examination (gastroscopy, colonoscopy, combined gastro and colonoscopy, ERCP, EUS, bronchoscopy)
- Type of examination (interventional vs diagnostic)
- Known multi-resistant germs (yes vs no)
Who cannot join
- none
Trial locations and contacts
4 sites in 1 country.
Germany4 sites, 3 recruiting
- Not yet recruiting
MDZ Magendarmzentrum, Gastroenterologisch, internistische Gemeinschaftspraxis
Darmstadt, Hesse, 64287
Norbert Haider, MD, mail@mdz-darmstadt.de
- Not yet recruiting
Klinikum der J. W. Goethe-Universität
Frankfurt am Main, Hesse, 60590
Florian Alexnader Michael, MD, 004963015333, Florian-Alexander.Michael@kgu.de
- Recruiting
IPG Hanau, Praxis für Gastroenterologie
Hanau, Hesse, 63450
Andrea Oliver Tal, MD, 06181 932240, empfang@ipg-hanau.de
- Completed
Klinikum Hanau, Klinik für Gastroenterologie, Diabetologie und Infektiologie
Hanau, Hesse, 63450
About this study
Official title: Recycling Potential in Endoscopy
The present trial is an observational prospective trial. The aim of the present study is to analyse the recycling potential in endoscopy units in hospitals and outpatient facilities. For this purpose, waste is collected for four weeks each at four locations (two inpatient and two outpatient facilities). Questions such as quantity and quality of garbage will be addressed and compared between the different facilities.
Read the detailed description
Current considerations by various professional societies are developing theoretical concepts with the goal of greenhouse-neutral endoscopy operation. However, the scientific data situation here is expandable. One study calculated an extrapolation for the US based on the mean value of weight and volume of a total of 278 endoscopies in five days at two hospitals. However, a differentiated consideration of various parameters such as examination type and the location of the endoscopy (outpatient vs. inpatient) was missing here.
In different endoscopic departments waste will be weighed. Those are two hospitals (university and non-university) and two outpatient endoscopy units, each for four weeks. The waste will be divided into residual waste, paper and plastic in order to record the possible recycling potential. In addition, it will be investigated how great the savings potential is by avoiding disposable products (gowns, endoscopes).
The present study addresses the following end points:
- Parts of waste per examination in g (residual waste, plastic, paper).
- Savings potential through reusable items (e.g. gowns)
- Comparison of disposable vs. reusable endoscopes
- Descriptive description of the amount of waste at the different locations
- Statistical comparison of the amount of waste in the different locations
- Statistical comparison of the amount of waste per examination
- Statistical comparison of the amount of waste between out-patient and in-patient
- Conditions
- Sustainable Development
- Keywords
- endoscopic procedures, endoscopy, environmental health
What is being measured
The primary outcome is the main question the study is designed to answer.
Amount of waste generated per examination in grams (g)
The amount of waste per procedure will be collected by weighing the garbage of after every procedure.
Measured: 16 weeks
Secondary outcomes (7)
Parts of waste per examination in g (residual waste, plastic, paper).
Measured: 16 weeks
Saving potential defined by the amount of reusable items in g per procedure (e.g. gowns)
The saving potential is defined as the amount of reusable items in g per procedure. Ruasable items are defined as items that are available as one way and multi-way products. An example are gowns.
Measured: 16 weeks
Comparison of the amount of waste in g in disposable vs. reusable endoscopes.
Measured: 16 weeks
Descriptive description of the amount of waste after 4 weeks in kg and per produre in g at the different locations.
Measured: 16 weeks
Statistical comparison of the amount of waste in the different locations
Measured: 16 weeks
Statistical comparison of the amount of waste per examination
Measured: 16 weeks
Statistical comparison of the amount of waste between out-patient and in-patient departments
Measured: 16 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Jun 2023
- Study start12 Jun 2023
- Primary completion30 Oct 2023 (estimated)
- Study completion30 Oct 2023 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Sustainable DevelopmentStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Ecologic or community
- Time perspective
- Prospective
- Enrolment
- 2,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Johann Wolfgang Goethe University Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Georg Dultz, Johann Wolfgang Goethe University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05921136
- Sponsor's protocol ID
- Flomi
- Status last verified
- Jul 2023
- First submitted
- 18 Jun 2023
- Last updated
- 1 Aug 2023
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Rodriguez de Santiago E, Dinis-Ribeiro M, Pohl H, Agrawal D, Arvanitakis M, Baddeley R, Bak E, Bhandari P, Bretthauer M, Burga P, Donnelly L, Eickhoff A, Hayee B, Kaminski MF, Karlovic K, Lorenzo-Zuniga V, Pellise M, Pioche M, Siau K, Siersema PD, Stableforth W, Tham TC, Triantafyllou K, Tringali A, Veitch A, Voiosu AM, Webster GJ, Vienne A, Beilenhoff U, Bisschops R, Hassan C, Gralnek IM, Messmann H. Reducing the environmental footprint of gastrointestinal endoscopy: European Society of Gastrointestinal Endoscopy (ESGE) and European Society of Gastroenterology and Endoscopy Nurses and Associates (ESGENA) Position Statement. Endoscopy. 2022 Aug;54(8):797-826. doi: 10.1055/a-1859-3726. Epub 2022 Jul 8.
PubMed 35803275Namburar S, von Renteln D, Damianos J, Bradish L, Barrett J, Aguilera-Fish A, Cushman-Roisin B, Pohl H. Estimating the environmental impact of disposable endoscopic equipment and endoscopes. Gut. 2022 Jul;71(7):1326-1331. doi: 10.1136/gutjnl-2021-324729. Epub 2021 Dec 1.
PubMed 34853058Seeger A, Welsch L, Kim S, Antonow G, Zeuzem S, Hessz D, Kohlhaufl J, Rohde G, Maitra R, Baumhofner C, Schmitt S, Heide A, Eickhoff A, Friedrich-Rust M, Michael FA. Cutting Waste in Bronchoscopy: A Multicenter Observational Study in the German Health Care System. Chest. 2026 Jun 5:S0012-3692(26)00772-5. doi: 10.1016/j.chest.2026.05.036. Online ahead of print.
PubMed 42250587Welsch L, Friedrich-Rust M, Tal A, Haider N, Kim S, Schneider M, Schmitt L, Wittersheim L, Schmitt S, Heide A, Heilani M, Zeuzem S, Eickhoff A, Michael FA. Cutting waste in endoscopy: a multicentre observational study in the German healthcare system. Gut. 2025 Nov 10;74(12):1989-1994. doi: 10.1136/gutjnl-2024-333401.
PubMed 40473397
Study at a glance
From the registry record, last updated by the sponsor on 1 Aug 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Recycling Potential in Endoscopy
- ClinicalTrials.gov ID
- NCT05921136
- Acronym / sponsor ID
- Flomi
- Conditions
- Sustainable Development
- Keywords
- endoscopic procedures, endoscopy, environmental health
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 2,000 participants (estimated)
- Lead sponsor
- Johann Wolfgang Goethe University HospitalUniversity, hospital or other
- Study start
- 12 Jun 2023 (actual)
- Primary completion
- 30 Oct 2023 (estimated)
- Study completion
- 30 Oct 2023 (estimated)
- First posted
- 27 Jun 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The present trial is an observational prospective trial. The aim of the present study is to analyse the recycling potential in endoscopy units in hospitals and outpatient facilities. For this purpose, waste is collected for four weeks each at four locations (two inpatient and two outpatient facilities). Questions such as quantity and quality of garbage will be addressed and compared between the different facilities.
Detailed description
Current considerations by various professional societies are developing theoretical concepts with the goal of greenhouse-neutral endoscopy operation. However, the scientific data situation here is expandable. One study calculated an extrapolation for the US based on the mean value of weight and volume of a total of 278 endoscopies in five days at two hospitals. However, a differentiated consideration of various parameters such as examination type and the location of the endoscopy (outpatient vs. inpatient) was missing here.
In different endoscopic departments waste will be weighed. Those are two hospitals (university and non-university) and two outpatient endoscopy units, each for four weeks. The waste will be divided into residual waste, paper and plastic in order to record the possible recycling potential. In addition, it will be investigated how great the savings potential is by avoiding disposable products (gowns, endoscopes).
The present study addresses the following end points:
- Parts of waste per examination in g (residual waste, plastic, paper).
- Savings potential through reusable items (e.g. gowns)
- Comparison of disposable vs. reusable endoscopes
- Descriptive description of the amount of waste at the different locations
- Statistical comparison of the amount of waste in the different locations
- Statistical comparison of the amount of waste per examination
- Statistical comparison of the amount of waste between out-patient and in-patient
Study design
- Observational model
- Ecologic or community
- Time perspective
- Prospective
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- No patients will be included but only the garbage after the procedures unrelated to patients.
Key inclusion criteria (3 listed)
- Endoscopic examination (gastroscopy, colonoscopy, combined gastro and colonoscopy, ERCP, EUS, bronchoscopy)
- Type of examination (interventional vs diagnostic)
- Known multi-resistant germs (yes vs no)
Key exclusion criteria (1 listed)
- none
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Amount of waste generated per examination in grams (g)
Time frame: 16 weeks
The amount of waste per procedure will be collected by weighing the garbage of after every procedure.
7 secondary outcomes
Parts of waste per examination in g (residual waste, plastic, paper).
Time frame: 16 weeks
Saving potential defined by the amount of reusable items in g per procedure (e.g. gowns)
Time frame: 16 weeks
Comparison of the amount of waste in g in disposable vs. reusable endoscopes.
Time frame: 16 weeks
Descriptive description of the amount of waste after 4 weeks in kg and per produre in g at the different locations.
Time frame: 16 weeks
Statistical comparison of the amount of waste in the different locations
Time frame: 16 weeks
Statistical comparison of the amount of waste per examination
Time frame: 16 weeks
Statistical comparison of the amount of waste between out-patient and in-patient departments
Time frame: 16 weeks
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Aug 2023.
- Background: PubMed 35803275Rodriguez de Santiago E, Dinis-Ribeiro M, Pohl H, Agrawal D, Arvanitakis M, Baddeley R, Bak E, Bhandari P, Bretthauer M, Burga P, Donnelly L, Eickhoff A, Hayee B, Kaminski MF, Karlovic K, Lorenzo-Zuniga V, Pellise M, Pioche M, Siau K, Siersema PD, Stableforth W, Tham TC, Triantafyllou K, Tringali A, Veitch A, Voiosu AM, Webster GJ, Vienne A, Beilenhoff U, Bisschops R, Hassan C, Gralnek IM, Messmann H. Reducing the environmental footprint of gastrointestinal endoscopy: European Society of Gastrointestinal Endoscopy (ESGE) and European Society of Gastroenterology and Endoscopy Nurses and Associates (ESGENA) Position Statement. Endoscopy. 2022 Aug;54(8):797-826. doi: 10.1055/a-1859-3726. Epub 2022 Jul 8.
- Background: PubMed 34853058Namburar S, von Renteln D, Damianos J, Bradish L, Barrett J, Aguilera-Fish A, Cushman-Roisin B, Pohl H. Estimating the environmental impact of disposable endoscopic equipment and endoscopes. Gut. 2022 Jul;71(7):1326-1331. doi: 10.1136/gutjnl-2021-324729. Epub 2021 Dec 1.
- Derived from this study: PubMed 42250587Seeger A, Welsch L, Kim S, Antonow G, Zeuzem S, Hessz D, Kohlhaufl J, Rohde G, Maitra R, Baumhofner C, Schmitt S, Heide A, Eickhoff A, Friedrich-Rust M, Michael FA. Cutting Waste in Bronchoscopy: A Multicenter Observational Study in the German Health Care System. Chest. 2026 Jun 5:S0012-3692(26)00772-5. doi: 10.1016/j.chest.2026.05.036. Online ahead of print.
- Derived from this study: PubMed 40473397Welsch L, Friedrich-Rust M, Tal A, Haider N, Kim S, Schneider M, Schmitt L, Wittersheim L, Schmitt S, Heide A, Heilani M, Zeuzem S, Eickhoff A, Michael FA. Cutting waste in endoscopy: a multicentre observational study in the German healthcare system. Gut. 2025 Nov 10;74(12):1989-1994. doi: 10.1136/gutjnl-2024-333401.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
MDZ Magendarmzentrum, Gastroenterologisch, internistische Gemeinschaftspraxis
Darmstadt, Germany
Klinikum der J. W. Goethe-Universität
Frankfurt am Main, Germany
4 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Sustainable Development, run by Johann Wolfgang Goethe University Hospital at 4 sites in Germany.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 1 Aug 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 4 sites in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Amount of waste generated per examination in grams (g) (time frame: 16 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05921136, which also lists 4 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Aug 2023; AzTrials last refreshed its copy on 1 Nov 2026.