Surgery of Breast CancerBDD-G3SNCT03461172
Database of Data Collection
An observational study of Surgery of Breast Cancer, run by Institut Paoli-Calmettes at 1 site in France.
Trial summary
For several years, the Paoli-Calmettes Institute has been centralizing the retrospective collection of clinical data of patients operated on for histologically proven breast cancer. Read more about this study
- Who is it for?
- Ages 18 years and older, women only
- Conditions the study is for
- Surgery of Breast Cancer
- What is being tested?
- Surgery of breast cancer and Clinical data collection
- Type of treatment
- Surgery or procedure
- How many people
- 50,000 participants
- Where
- 1 siteFrance
- Study dates
- 20 Apr 2006to Apr 2026
- 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 18 years and older
- Women only
- No healthy volunteers
- Adult, Older adult
Study population: Database of data collection in senological surgery
Who may be able to join
- patients operated for histologically proven breast cancer.
Who cannot join
- Patient below age of 18 years
Trial locations and contacts
1 site in 1 country.
Gilles HOUVENAEGHEL contact
France1 site, 1 recruiting
- Recruiting
Institut Paoli Calmettes
Marseille, Bouches Du Rhone, 13009
Dominique GENRE, MD, 33 4 91 22 37 78, drci.up@ipc.unicancer.fr
About this study
Official title: Database of Data Collection in Senological Surgery
For several years, the Paoli-Calmettes Institute has been centralizing the retrospective collection of clinical data of patients operated on for histologically proven breast cancer.
Read the detailed description
The current cohort (G3S) fed by more than 20 centers has more than 25,000 patient records. The collection centralizes the main characteristics of the patients, the tumor and the treatments. Also included are the date of first recurrence, the localization (local, regional or distant) as well as the death or the date of the latest news. The current database is also updated regularly.
- Conditions
- Surgery of Breast Cancer
- Being tested
- Surgery of breast cancer, Clinical data collection
- Keywords
- surgery, breast cancer
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Surgery of breast cancerProcedure or surgery
Surgery of breast cancer
Clinical data collectionOther
The collection centralizes the main characteristics of the patients, the tumor and the treatments. Also included are the date of first recurrence, the localization (local, regional or distant) as well as the death or the date of the latest news.
| Study group | Role | What they receive |
|---|---|---|
| patients operated for breast cancer | patients operated for histologically proven breast cancer Receives: Procedure: Surgery of breast cancer; Other: Clinical data collection |
What is being measured
The primary outcome is the main question the study is designed to answer.
follow-up of patients operated for breast cancer
Measured: 20 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Mar 2018
- Study start20 Apr 2006
- Primary completionApr 2026 (estimated)
- Study completionApr 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Surgery of Breast CancerStudies of the same condition, open and under way.
- More trials run by Institut Paoli-CalmettesThe sponsor's other registered studies.
- 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
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 50,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Institut Paoli-Calmettes
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Gilles HOUVENAEGHEL, Principal investigator, Institut Paoli-Calmettes
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03461172
- Sponsor's protocol ID
- IPC 2017-023
- Acronym
- BDD-G3S
- Status last verified
- Mar 2018
- First submitted
- 5 Mar 2018
- Last updated
- 24 May 2018
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Houvenaeghel G, Lambaudie E, Cohen M, Classe JM, Reyal F, Garbay JR, Giard S, Chopin N, Martinez A, Rouzier R, Darai E, Colombo PE, Coutant C, Gimbergues P, Azuar P, Villet R, Tunon de Lara C, Barranger E, Sabiani L, Goncalves A. Therapeutic escalation - De-escalation: Data from 15.508 early breast cancer treated with upfront surgery and sentinel lymph node biopsy (SLNB). Breast. 2017 Aug;34:24-33. doi: 10.1016/j.breast.2017.04.008. Epub 2017 May 3.
PubMed 28475932de Nonneville A, Goncalves A, Zemmour C, Classe JM, Cohen M, Lambaudie E, Reyal F, Scherer C, Muracciole X, Colombo PE, Giard S, Rouzier R, Villet R, Chopin N, Darai E, Garbay JR, Gimbergues P, Sabiani L, Coutant C, Sabatier R, Bertucci F, Boher JM, Houvenaeghel G. Benefit of adjuvant chemotherapy with or without trastuzumab in pT1ab node-negative human epidermal growth factor receptor 2-positive breast carcinomas: results of a national multi-institutional study. Breast Cancer Res Treat. 2017 Apr;162(2):307-316. doi: 10.1007/s10549-017-4136-5. Epub 2017 Feb 2.
PubMed 28155054Lambaudie E, Houvenaeghel G, Zioueche A, Knight S, Dravet F, Garbay JR, Giard S, Charitansky H, Cohen M, Faure C, Hudry D, Azuar P, Villet R, Gimbergues P, de Lara CT, Tallet A, Bannier M, Minsat M, Resbeut M. Exclusive intraoperative radiotherapy for invasive breast cancer in elderly patients (>70 years): proportion of eligible patients and local recurrence-free survival. BMC Surg. 2016 Nov 15;16(1):74. doi: 10.1186/s12893-016-0191-9.
PubMed 27846840Houvenaeghel G, Sabatier R, Reyal F, Classe JM, Giard S, Charitansky H, Rouzier R, Faure C, Garbay JR, Darai E, Hudry D, Gimbergues P, Villet R, Lambaudie E. Axillary lymph node micrometastases decrease triple-negative early breast cancer survival. Br J Cancer. 2016 Oct 25;115(9):1024-1031. doi: 10.1038/bjc.2016.283. Epub 2016 Sep 29.
PubMed 27685443Houvenaeghel G, Boher JM, Reyal F, Cohen M, Garbay JR, Classe JM, Rouzier R, Giard S, Faure C, Charitansky H, Tunon de Lara C, Darai E, Hudry D, Azuar P, Gimbergues P, Villet R, Sfumato P, Lambaudie E. Impact of completion axillary lymph node dissection in patients with breast cancer and isolated tumour cells or micrometastases in sentinel nodes. Eur J Cancer. 2016 Nov;67:106-118. doi: 10.1016/j.ejca.2016.08.003. Epub 2016 Sep 16.
PubMed 27640137Sabiani L, Houvenaeghel G, Heinemann M, Reyal F, Classe JM, Cohen M, Garbay JR, Giard S, Charitansky H, Chopin N, Rouzier R, Darai E, Coutant C, Azuar P, Gimbergues P, Villet R, Tunon de Lara C, Lambaudie E. Breast cancer in young women: Pathologic features and molecular phenotype. Breast. 2016 Oct;29:109-16. doi: 10.1016/j.breast.2016.07.007. Epub 2016 Jul 29.
PubMed 27479041Houvenaeghel G, Classe JM, Garbay JR, Giard S, Cohen M, Faure C, Charytansky H, Rouzier R, Darai E, Hudry D, Azuar P, Villet R, Gimbergues P, Tunon de Lara C, Martino M, Fraisse J, Dravet F, Chauvet MP, Goncalves A, Lambaudie E. Survival impact and predictive factors of axillary recurrence after sentinel biopsy. Eur J Cancer. 2016 May;58:73-82. doi: 10.1016/j.ejca.2016.01.019. Epub 2016 Mar 11.
PubMed 26971077Jauffret C, Houvenaeghel G, Classe JM, Garbay JR, Giard S, Charitansky H, Cohen M, Belichard C, Faure C, Darai E, Hudry D, Azuar P, Villet R, Gimbergues P, Tunon de Lara C, Martino M, Coutant C, Dravet F, Chauvet MP, Chereau Ewald E, Penault-Llorca F, Goncalves A, Lambaudie E. [Lobular invasive breast cancer prognostic factors: About 940 patients]. Gynecol Obstet Fertil. 2015 Nov;43(11):712-7. doi: 10.1016/j.gyobfe.2015.09.007. Epub 2015 Oct 16. French.
PubMed 26482833Zioueche-Mottet A, Houvenaeghel G, Classe JM, Garbay JR, Giard S, Charitansky H, Cohen M, Belichard C, Faure C, Chereau Ewald E, Hudry D, Azuar P, Villet R, Gimbergues P, Tunon de Lara C, Tallet A, Bannier M, Minsat M, Lambaudie E, Resbeut M. Eligibility criteria for intraoperative radiotherapy for breast cancer: study employing 12,025 patients treated in two cohorts. BMC Cancer. 2014 Nov 24;14:868. doi: 10.1186/1471-2407-14-868.
PubMed 25417756Houvenaeghel G, Classe JM, Garbay JR, Giard S, Cohen M, Faure C, Helene C, Belichard C, Uzan S, Hudry D, Azuar P, Villet R, Penault Llorca F, Tunon de Lara C, Goncalves A, Esterni B; et al. Prognostic value of isolated tumor cells and micrometastases of lymph nodes in early-stage breast cancer: a French sentinel node multicenter cohort study. Breast. 2014 Oct;23(5):561-6. doi: 10.1016/j.breast.2014.04.004. Epub 2014 May 27.
PubMed 24874284Houvenaeghel G, Goncalves A, Classe JM, Garbay JR, Giard S, Charytensky H, Cohen M, Belichard C, Faure C, Uzan S, Hudry D, Azuar P, Villet R, Gimbergues P, Tunon de Lara C, Martino M, Lambaudie E, Coutant C, Dravet F, Chauvet MP, Chereau Ewald E, Penault-Llorca F, Esterni B. Characteristics and clinical outcome of T1 breast cancer: a multicenter retrospective cohort study. Ann Oncol. 2014 Mar;25(3):623-628. doi: 10.1093/annonc/mdt532. Epub 2014 Jan 7.
PubMed 24399079Houvenaeghel G, Bannier M, Nos C, Giard S, Mignotte H, Jacquemier J, Martino M, Esterni B, Belichard C, Classe JM, Tunon de Lara C, Cohen M, Payan R, Blanchot J, Rouanet P, Penault-Llorca F, Bonnier P, Fournet S, Agostini A, Marchal F, Garbay JR. Non sentinel node involvement prediction for sentinel node micrometastases in breast cancer: nomogram validation and comparison with other models. Breast. 2012 Apr;21(2):204-9. doi: 10.1016/j.breast.2011.09.013. Epub 2011 Oct 19.
PubMed 22014859Houvenaeghel G, Nos C, Giard S, Mignotte H, Esterni B, Jacquemier J, Buttarelli M, Classe JM, Cohen M, Rouanet P, Penault Llorca F, Bonnier P, Marchal F, Garbay JR, Fraisse J, Martel P, Fondrinier E, Tunon de Lara C, Rodier JF. A nomogram predictive of non-sentinel lymph node involvement in breast cancer patients with a sentinel lymph node micrometastasis. Eur J Surg Oncol. 2009 Jul;35(7):690-5. doi: 10.1016/j.ejso.2008.10.003. Epub 2008 Nov 28.
PubMed 19046847Houvenaeghel G, Nos C, Mignotte H, Classe JM, Giard S, Rouanet P, Lorca FP, Jacquemier J, Bardou VJ; Groupe des Chirurgiens de la Federation des Centres de Lutte Contre le Cancer. Micrometastases in sentinel lymph node in a multicentric study: predictive factors of nonsentinel lymph node involvement--Groupe des Chirurgiens de la Federation des Centres de Lutte Contre le Cancer. J Clin Oncol. 2006 Apr 20;24(12):1814-22. doi: 10.1200/JCO.2005.03.3225. Epub 2006 Mar 27.
PubMed 16567771Houvenaeghel G, de Nonneville A, Chopin N, Classe JM, Mazouni C, Chauvet MP, Reyal F, Tunon de Lara C, Jouve E, Rouzier R, Darai E, Gimbergues P, Coutant C, Azuar AS, Villet R, Crochet P, Rua S, Bannier M, Cohen M, Boher JM. The need to tailor the omission of axillary lymph node dissection to patients with good prognosis and sentinel node micro-metastases. Cancer Med. 2023 Feb;12(4):4023-4032. doi: 10.1002/cam4.5257. Epub 2022 Sep 20.
PubMed 36127853
Study at a glance
From the registry record, last updated by the sponsor on 24 May 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Database of Data Collection in Senological Surgery
- ClinicalTrials.gov ID
- NCT03461172
- Acronym / sponsor ID
- BDD-G3S / IPC 2017-023
- Conditions
- Surgery of Breast Cancer
- Keywords
- surgery, breast cancer
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 50,000 participants (estimated)
- Lead sponsor
- Institut Paoli-CalmettesUniversity, hospital or other
- Study start
- 20 Apr 2006 (actual)
- Primary completion
- Apr 2026 (estimated)
- Study completion
- Apr 2026 (estimated)
- First posted
- 9 Mar 2018 (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.
For several years, the Paoli-Calmettes Institute has been centralizing the retrospective collection of clinical data of patients operated on for histologically proven breast cancer.
Detailed description
The current cohort (G3S) fed by more than 20 centers has more than 25,000 patient records. The collection centralizes the main characteristics of the patients, the tumor and the treatments. Also included are the date of first recurrence, the localization (local, regional or distant) as well as the death or the date of the latest news. The current database is also updated regularly.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| patients operated for breast cancer | – | Procedure: Surgery of breast cancer, Other: Clinical data collectionpatients operated for histologically proven breast cancer |
Who may qualify
- Ages
- 18 years and older
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Database of data collection in senological surgery
Key inclusion criteria (1 listed)
- patients operated for histologically proven breast cancer.
Key exclusion criteria (1 listed)
- Patient below age of 18 years
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Surgery of breast cancerSurgery of breast cancer | Procedure or surgery | patients operated for breast cancer |
| Clinical data collectionThe collection centralizes the main characteristics of the patients, the tumor and the treatments. Also included are the date of first recurrence, the localization (local, regional or distant) as well as the death or the date of the latest news. | Other | patients operated for breast cancer |
Primary outcome
follow-up of patients operated for breast cancer
Time frame: 20 years
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 May 2018.
- Results publication: PubMed 28475932Houvenaeghel G, Lambaudie E, Cohen M, Classe JM, Reyal F, Garbay JR, Giard S, Chopin N, Martinez A, Rouzier R, Darai E, Colombo PE, Coutant C, Gimbergues P, Azuar P, Villet R, Tunon de Lara C, Barranger E, Sabiani L, Goncalves A. Therapeutic escalation - De-escalation: Data from 15.508 early breast cancer treated with upfront surgery and sentinel lymph node biopsy (SLNB). Breast. 2017 Aug;34:24-33. doi: 10.1016/j.breast.2017.04.008. Epub 2017 May 3.
- Results publication: PubMed 28155054de Nonneville A, Goncalves A, Zemmour C, Classe JM, Cohen M, Lambaudie E, Reyal F, Scherer C, Muracciole X, Colombo PE, Giard S, Rouzier R, Villet R, Chopin N, Darai E, Garbay JR, Gimbergues P, Sabiani L, Coutant C, Sabatier R, Bertucci F, Boher JM, Houvenaeghel G. Benefit of adjuvant chemotherapy with or without trastuzumab in pT1ab node-negative human epidermal growth factor receptor 2-positive breast carcinomas: results of a national multi-institutional study. Breast Cancer Res Treat. 2017 Apr;162(2):307-316. doi: 10.1007/s10549-017-4136-5. Epub 2017 Feb 2.
- Results publication: PubMed 27846840Lambaudie E, Houvenaeghel G, Zioueche A, Knight S, Dravet F, Garbay JR, Giard S, Charitansky H, Cohen M, Faure C, Hudry D, Azuar P, Villet R, Gimbergues P, de Lara CT, Tallet A, Bannier M, Minsat M, Resbeut M. Exclusive intraoperative radiotherapy for invasive breast cancer in elderly patients (>70 years): proportion of eligible patients and local recurrence-free survival. BMC Surg. 2016 Nov 15;16(1):74. doi: 10.1186/s12893-016-0191-9.
- Results publication: PubMed 27685443Houvenaeghel G, Sabatier R, Reyal F, Classe JM, Giard S, Charitansky H, Rouzier R, Faure C, Garbay JR, Darai E, Hudry D, Gimbergues P, Villet R, Lambaudie E. Axillary lymph node micrometastases decrease triple-negative early breast cancer survival. Br J Cancer. 2016 Oct 25;115(9):1024-1031. doi: 10.1038/bjc.2016.283. Epub 2016 Sep 29.
- Results publication: PubMed 27640137Houvenaeghel G, Boher JM, Reyal F, Cohen M, Garbay JR, Classe JM, Rouzier R, Giard S, Faure C, Charitansky H, Tunon de Lara C, Darai E, Hudry D, Azuar P, Gimbergues P, Villet R, Sfumato P, Lambaudie E. Impact of completion axillary lymph node dissection in patients with breast cancer and isolated tumour cells or micrometastases in sentinel nodes. Eur J Cancer. 2016 Nov;67:106-118. doi: 10.1016/j.ejca.2016.08.003. Epub 2016 Sep 16.
- Results publication: PubMed 27479041Sabiani L, Houvenaeghel G, Heinemann M, Reyal F, Classe JM, Cohen M, Garbay JR, Giard S, Charitansky H, Chopin N, Rouzier R, Darai E, Coutant C, Azuar P, Gimbergues P, Villet R, Tunon de Lara C, Lambaudie E. Breast cancer in young women: Pathologic features and molecular phenotype. Breast. 2016 Oct;29:109-16. doi: 10.1016/j.breast.2016.07.007. Epub 2016 Jul 29.
- Results publication: PubMed 26971077Houvenaeghel G, Classe JM, Garbay JR, Giard S, Cohen M, Faure C, Charytansky H, Rouzier R, Darai E, Hudry D, Azuar P, Villet R, Gimbergues P, Tunon de Lara C, Martino M, Fraisse J, Dravet F, Chauvet MP, Goncalves A, Lambaudie E. Survival impact and predictive factors of axillary recurrence after sentinel biopsy. Eur J Cancer. 2016 May;58:73-82. doi: 10.1016/j.ejca.2016.01.019. Epub 2016 Mar 11.
- Results publication: PubMed 26482833Jauffret C, Houvenaeghel G, Classe JM, Garbay JR, Giard S, Charitansky H, Cohen M, Belichard C, Faure C, Darai E, Hudry D, Azuar P, Villet R, Gimbergues P, Tunon de Lara C, Martino M, Coutant C, Dravet F, Chauvet MP, Chereau Ewald E, Penault-Llorca F, Goncalves A, Lambaudie E. [Lobular invasive breast cancer prognostic factors: About 940 patients]. Gynecol Obstet Fertil. 2015 Nov;43(11):712-7. doi: 10.1016/j.gyobfe.2015.09.007. Epub 2015 Oct 16. French.
- Results publication: PubMed 25417756Zioueche-Mottet A, Houvenaeghel G, Classe JM, Garbay JR, Giard S, Charitansky H, Cohen M, Belichard C, Faure C, Chereau Ewald E, Hudry D, Azuar P, Villet R, Gimbergues P, Tunon de Lara C, Tallet A, Bannier M, Minsat M, Lambaudie E, Resbeut M. Eligibility criteria for intraoperative radiotherapy for breast cancer: study employing 12,025 patients treated in two cohorts. BMC Cancer. 2014 Nov 24;14:868. doi: 10.1186/1471-2407-14-868.
- Results publication: PubMed 24874284Houvenaeghel G, Classe JM, Garbay JR, Giard S, Cohen M, Faure C, Helene C, Belichard C, Uzan S, Hudry D, Azuar P, Villet R, Penault Llorca F, Tunon de Lara C, Goncalves A, Esterni B; et al. Prognostic value of isolated tumor cells and micrometastases of lymph nodes in early-stage breast cancer: a French sentinel node multicenter cohort study. Breast. 2014 Oct;23(5):561-6. doi: 10.1016/j.breast.2014.04.004. Epub 2014 May 27.
- Results publication: PubMed 24399079Houvenaeghel G, Goncalves A, Classe JM, Garbay JR, Giard S, Charytensky H, Cohen M, Belichard C, Faure C, Uzan S, Hudry D, Azuar P, Villet R, Gimbergues P, Tunon de Lara C, Martino M, Lambaudie E, Coutant C, Dravet F, Chauvet MP, Chereau Ewald E, Penault-Llorca F, Esterni B. Characteristics and clinical outcome of T1 breast cancer: a multicenter retrospective cohort study. Ann Oncol. 2014 Mar;25(3):623-628. doi: 10.1093/annonc/mdt532. Epub 2014 Jan 7.
- Results publication: PubMed 22014859Houvenaeghel G, Bannier M, Nos C, Giard S, Mignotte H, Jacquemier J, Martino M, Esterni B, Belichard C, Classe JM, Tunon de Lara C, Cohen M, Payan R, Blanchot J, Rouanet P, Penault-Llorca F, Bonnier P, Fournet S, Agostini A, Marchal F, Garbay JR. Non sentinel node involvement prediction for sentinel node micrometastases in breast cancer: nomogram validation and comparison with other models. Breast. 2012 Apr;21(2):204-9. doi: 10.1016/j.breast.2011.09.013. Epub 2011 Oct 19.
- Individual participant dataSharing planned: No
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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.
Gilles HOUVENAEGHEL contact
Gilles HOUVENAEGHEL principal investigator
Institut Paoli-Calmettes
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Surgery of Breast Cancer, run by Institut Paoli-Calmettes at 1 site in France.
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 1 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 24 May 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. 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?
Contact Gilles HOUVENAEGHEL (HOUVENAEGHELG@ipc.unicancer.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
follow-up of patients operated for breast cancer (time frame: 20 years). 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 NCT03461172, which also lists 15 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 24 May 2018.