Immediate Implant PlacementNCT07492576
Evaluation of the Magnesium Shield Compared to Dual Zone Grafting Approach in Immediate Implant Site Management
A study testing GBR surgery using magnesium Shield and Dual Zone concept (DZ) technique in people with Immediate Implant Placement, run by British University In Egypt at 1 site in Egypt.
Trial summary
Will (GBR) by application of magnesium membrane with immediate implant will have more volume gain , higher pink esthetic score, and lower visual analogue scale than dual zone grafting technique? Several methods have been suggested for the preservation of post-extraction resorption and promoting an increase in the bone… Read more about this study
- Who is it for?
- Ages 18 to 60 yearsHealthy volunteers can take part
- Conditions the study is for
- Immediate Implant Placement
- What is being tested?
- GBR surgery using magnesium Shield and Dual Zone concept (DZ) technique
- Type of treatment
- Medical device, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 22 participants
- Where
- 1 siteEgypt
- Study dates
- 19 Mar 2026to 29 Jan 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 to 60 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- 18-60 years of age
- Patients have hopeless maxillary teeth, a thin buccal plate of bone ≤1 mm and intact overlying soft tissue intact overlying soft tissues in aesthetic zone (EDS-2, Kan classification)
- Periodontally healthy (good oral hygiene)
- Medically controlled patient
Who cannot join
- Smokers
- patients with systemic diseases
- history of chemotherapy or radiotherapy within the past 2 years.
- Acute infection
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Egypt1 site, 1 recruiting
- Recruiting
The British university in Egypt
Cairo
Dalia G Ghalwash, Professor, 0100 5120159, dalia.ghalwash@bue.edu.eg
About this study
Official title: Evaluation of the Magnesium Shield Compared to Dual Zone Grafting Approach in Immediate Implant Site Management: a Randomized Controlled Clinical Trial
Will (GBR) by application of magnesium membrane with immediate implant will have more volume gain , higher pink esthetic score, and lower visual analogue scale than dual zone grafting technique? Several methods have been suggested for the preservation of post-extraction resorption and promoting an increase in the bone density with immediate implant placement. one of these techniques is the dual zone concept (DZ), atraumatic tooth extraction using peristomes and luxators, implant placement along with the bone grafting material applied to both the bone and tissue zones.
The aim of (DZ) is to augment the soft tissue using a bone graft to avoid mucosal recession after implant placement thus keeping the gingival contour providing optimal soft tissue aesthetic.
Read more
The use of magnesium membrane in combination with inorganic bovine bones will be placed between the membrane and immediate implant. This allows implant placement while simultaneously rehabilitating the entire socket, due to its unique material properties, a magnesium membrane is used to rebuild, support the buccal or oral walls in compromised sockets, and promotes cortical bone growth . Many techniques available for preserving the bone of the socket post-tooth extraction, but in comparison to the current materials and techniques used , magnesium membrane is completely resorbable and does not require second surgery to be removed; it is synthetic and therefore does not need to be sourced from an additional surgical. magnesium membrane is excellent in providing both esthetic and functional outcomes that meet patient expectations.
The procedure involves flapless approach in which atraumatic tooth extraction using peristomes and forceps will be performed to preserve the available alveolar bone. The implant site will be prepared, and the implant will be placed palatal and 3-4m.m apical to the free gingival margin (FGM). magnesium membrane will be placed between the soft tissue and thin buccal wall. The edges of the membrane will be shaped and flattened with sculptor to prevent perforation of the soft tissue, and a layer off inorganic bovine bone will be placed between the e buccal wall and implant. Then immediate provisional restoration will be constructed and placed to allow an ideal final crown mimicking the natural emergence profile.
- Conditions
- Immediate Implant Placement
- Being tested
- GBR surgery using magnesium Shield, Dual Zone concept (DZ) technique
- Keywords
- Magnesium shield ,, Immidate implant, dual zone concept with immediate implant.
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GBR surgery using magnesium ShieldDevice
Also called Novamag, Immidate implant
Atraumatic flapless tooth extraction using periotomes and forceps will be performed to preserve the available labial bone wall the alveolus will be curetted with a curette, and the remaining inflammatory tissue will be removed. Then, the implant site will be prepared, and the implant will be inserted . A novel magnesium membrane will be placed between thin labial bone wall and soft tissue. the membrane will be cutted and shaped to the proper size using scissors. The edges of the membrane will be shaped and flattened with the sculptor to prevent perforation of the soft tissue, and a layer of bone will be placed between implant and buccal wall. The socket will be sealed with a chair-side fabricated provisional restoration on temporary abutment .
Dual Zone concept (DZ) techniqueProcedure or surgery
Atraumatic flapless tooth extraction using peristomes and luxators, then Osteotomy site preparation will be done according to the manufacturers.
instructions followed by immediate implant placement. The implant will be 3-4m.m apical to the free gingival margin (FGM) , engaging intact apical and palatal bone to achieve primary stability using the motor and manual torque wrench which will be set to be at least 35 Ncm to allow non- functional immediate loading of chair- side provisional restorations fabricated on abutments, to allow sealing the socket orifice and maintain the original socket architecture , the gap labial to the implant will be filled with bone both the bone and tissue zones till the free gingival margin level to reduce the change in the contour around implants, then the chair side fabricated provisional restoration will be placed .
| Study group | Role | What they receive |
|---|---|---|
| magnesium shield (GBR) | Experimental | Atraumatic flapless tooth extraction using periotomes and forceps will be performed to preserve the available labial bone wall the alveolus will be curetted with a curette, and the remaining inflammatory tissue will be removed. Then, the implant site will be prepared, and the implant will be inserted . A novel magnesium membrane will be placed between thin labial bone wall and soft tissue. the membrane will be cutted and shaped to the proper size using scissors. The edges of the membrane will be shaped and flattened with the sculptor to prevent perforation of the soft tissue, and a layer of bone will be placed between implant and buccal wall. The socket will be sealed with a chair-side fabricated provisional restoration on temporary abutment . Receives: Device: GBR surgery using magnesium Shield |
| Dual Zone concept (DZ) technique | Active comparator | ( control group ) Atraumatic flapless tooth extraction using peristomes and luxators, then Osteotomy site preparation will be done according to the manufacturers.
instructions followed by immediate implant placement. The implant will be 3-4m.m apical to the free gingival margin (FGM) , engaging intact apical and palatal bone to achieve primary stability using the motor and manual torque wrench which will be set to be at least 35 Ncm to allow non- functional immediate loading of chair- side provisional restorations fabricated on abutments, to allow sealing the socket orifice and maintain the original socket architecture , the gap labial to the implant will be filled with bone both the bone and tissue zones till the free gingival margin level to reduce the change in the contour around implants, then the chair side fabricated provisional restoration will be placed. Receives: Procedure: Dual Zone concept (DZ) technique |
What is being measured
The primary outcome is the main question the study is designed to answer.
bucco-palatal dimensional ridge changes
The Bucco-palatal dimensional ridge alterations were assessed via digital scans to assess the difference and changes in the overall ridge dimensions (mm). Reference points were assigned in the baseline measurements of the scans using the Standard Triangle Language (STL) files of the models obtained via digital scanning to allow standardized comparisons after 3,6, and 9 months. The 3D software allowed the alignment of the reference points identified on the models.
Measured: Pre-operative , day 1 , then 3,6 , 9 months later
Secondary outcomes (9)
Pink esthetic score (PES)
Pink esthetic score will be recorded for five variables: "mesial papilla, distal papilla, curvature of the facial mucosa, level of the facial mucosa, and root convexity/soft tissue color and texture at the facial aspect of the implant site". A score of 2, 1, or 0 will be assigned to all five PES parameters.
The two papillary scores (mesial and distal) will be assessed for the complete presence (score 2), incomplete presence (score 1) or absence (score0) of papillary tissue. The curvature of the facial soft tissue line, also defined as the line of emergence of the implant restoration from the soft tissues, will be evaluated as being identical (score 2 ), slightly different (score 1), or markedly different (score 0) compared to the natural control tooth and thus, provided a natural symmetrical or disharmonious appearance and in comparison to the contralateral tooth in terms of an identical vertical level (score 2), a slight (<1 mm) discrepancy (score 1), or a major (>1 mm) discrepancy
Measured: Baseline, 3 , 6,and 9 months
• Volumetric changes ( digital scanner )
To assess the volumetric differences between the baseline, 3, 6 and 9 months postoperatively, digital replica using scanner. Digital replicas were produced resembling various time intervals during treatment. Superimposing the different replicas of each case utilizing the best fit algorithm by using reference points from the tooth surfaces. The implant site region was delineated by the mucogingival line, the mesial and distal papillary midline, and the alveolar crest. Thus, alterations in volume between the digitized superimposed replicas could be recorded.
Measured: Pre-operative ,day 1 , 3,6 ,and 9 months
• Mid facial mucosal recession (MFR)
changes were assessed by three measurements, taken at the tip of the mesial papillae, tip of the distal papillae, and mid-facial gingival margin, preoperative, once at baseline and were compared to measurements after ,3, 6, and 9 months.
Measured: Pre-operative baseline and 3,6,9 months
• Labial bone thickness
Assessed on the sagittal section of the CBCT at three points: the implant platform (crestal thickness), half of the implant length (middle thickness) and implant apex (apical thickness).
Measured: The labial bone thickness will be measured at day 1and 9 months later
• Soft tissue thickness (STT)
using an anesthetic needle with rubber stopper to pierce the gingiva horizontally and perpendicular to the long axis of the tooth till bone contact 2mm coronal to the MGJ and in the mid distance mesiodistally. The part of the instrument penetrating into soft tissue will be measured in mm.
Measured: measured at baseline and 9 months
Visual analogue scale measures postoperative pain (VAS)
Pain score is reported by the patient directly through The Visual Analogue Scale score (from 0 to 10. 0: no pain, 1: minimal pain, 5: moderate pain, 10: severe pain)
Measured: 3 days , 7 days ,and 14 days
• Probing depth
Probing depth is the distance from the gingival margin to the base of the sulcus or periodontal pocket, measured using a periodontal probe.
Measured: Baseline and 9 months
• Plaque index
simple method used to record the presence of dental plaque on tooth surfaces. It is commonly called the O'Leary Plaque Control Record (PCR).
Measured: Baseline and 9 months
• Bleeding index
clinical index used to evaluate gingival inflammation by measuring bleeding after gentle probing.
- A periodontal probe is gently inserted into the gingival sulcus.
- The probe is moved along the gingival margin with light pressure.
- The site is observed for bleeding within about 10-30 second
Measured: Baseline and 9 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Mar 2026
- Study start19 Mar 2026
- Primary completion29 Dec 2026 (estimated)
- Study completion29 Jan 2027 (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 Immediate Implant PlacementStudies 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 22 participants (estimated)
Sponsor and investigators
- Lead sponsor
- British University In Egypt
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, RIM MAZEN, British University In Egypt
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07492576
- Sponsor's protocol ID
- 25-050
- Status last verified
- Aug 2025
- First submitted
- 13 Mar 2026
- Last updated
- 1 Apr 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Gurbuz E, Ceylan E. Comparison of a non-grafted socket shield technique with guided bone regeneration in immediate implant placement: a randomized clinical trial. Int J Oral Maxillofac Surg. 2025 Apr;54(4):356-364. doi: 10.1016/j.ijom.2024.11.009. Epub 2024 Dec 7.
PubMed 39648089Araujo MG, Wennstrom JL, Lindhe J. Modeling of the buccal and lingual bone walls of fresh extraction sites following implant installation. Clin Oral Implants Res. 2006 Dec;17(6):606-14. doi: 10.1111/j.1600-0501.2006.01315.x.
PubMed 17092217Buser D, Chappuis V, Belser UC, Chen S. Implant placement post extraction in esthetic single tooth sites: when immediate, when early, when late? Periodontol 2000. 2017 Feb;73(1):84-102. doi: 10.1111/prd.12170.
PubMed 28000278Araujo MG, Sukekava F, Wennstrom JL, Lindhe J. Ridge alterations following implant placement in fresh extraction sockets: an experimental study in the dog. J Clin Periodontol. 2005 Jun;32(6):645-52. doi: 10.1111/j.1600-051X.2005.00726.x.
PubMed 15882225
Study at a glance
From the registry record, last updated by the sponsor on 1 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of the Magnesium Shield Compared to Dual Zone Grafting Approach in Immediate Implant Site Management: a Randomized Controlled Clinical Trial
- ClinicalTrials.gov ID
- NCT07492576
- Acronym / sponsor ID
- 25-050
- Conditions
- Immediate Implant Placement
- Keywords
- Magnesium shield ,, Immidate implant, dual zone concept with immediate implant.
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 22 participants (estimated)
- Lead sponsor
- British University In EgyptUniversity, hospital or other
- Study start
- 19 Mar 2026 (actual)
- Primary completion
- 29 Dec 2026 (estimated)
- Study completion
- 29 Jan 2027 (estimated)
- First posted
- 25 Mar 2026 (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.
Will (GBR) by application of magnesium membrane with immediate implant will have more volume gain , higher pink esthetic score, and lower visual analogue scale than dual zone grafting technique? Several methods have been suggested for the preservation of post-extraction resorption and promoting an increase in the bone density with immediate implant placement. one of these techniques is the dual zone concept (DZ), atraumatic tooth extraction using peristomes and luxators, implant placement along with the bone grafting material applied to both the bone and tissue zones.
The aim of (DZ) is to augment the soft tissue using a bone graft to avoid mucosal recession after implant placement thus keeping the gingival contour providing optimal soft tissue aesthetic.
The use of magnesium membrane in combination with inorganic bovine bones will be placed between the membrane and immediate implant. This allows implant placement while simultaneously rehabilitating the entire socket, due to its unique material properties, a magnesium membrane is used to rebuild, support the buccal or oral walls in compromised sockets, and promotes cortical bone growth . Many techniques available for preserving the bone of the socket post-tooth extraction, but in comparison to the current materials and techniques used , magnesium membrane is completely resorbable and does not require second surgery to be removed; it is synthetic and therefore does not need to be sourced from an additional surgical. magnesium membrane is excellent in providing both esthetic and functional outcomes that meet patient expectations.
The procedure involves flapless approach in which atraumatic tooth extraction using peristomes and forceps will be performed to preserve the available alveolar bone. The implant site will be prepared, and the implant will be placed palatal and 3-4m.m apical to the free gingival margin (FGM). magnesium membrane will be placed between the soft tissue and thin buccal wall. The edges of the membrane will be shaped and flattened with sculptor to prevent perforation of the soft tissue, and a layer off inorganic bovine bone will be placed between the e buccal wall and implant. Then immediate provisional restoration will be constructed and placed to allow an ideal final crown mimicking the natural emergence profile.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| magnesium shield (GBR) | Experimental | Device: GBR surgery using magnesium ShieldAtraumatic flapless tooth extraction using periotomes and forceps will be performed to preserve the available labial bone wall the alveolus will be curetted with a curette, and the remaining inflammatory tissue will be removed. Then, the implant site will be prepared, and the implant will be inserted . A novel magnesium membrane will be placed between thin labial bone wall and soft tissue. the membrane will be cutted and shaped to the proper size using scissors. The edges of the membrane will be shaped and flattened with the sculptor to prevent perforation of the soft tissue, and a layer of bone will be placed between implant and buccal wall. The socket will be sealed with a chair-side fabricated provisional restoration on temporary abutment . |
| Dual Zone concept (DZ) technique | Active comparator | Procedure: Dual Zone concept (DZ) technique( control group ) Atraumatic flapless tooth extraction using peristomes and luxators, then Osteotomy site preparation will be done according to the manufacturers. instructions followed by immediate implant placement. The implant will be 3-4m.m apical to the free gingival margin (FGM) , engaging intact apical and palatal bone to achieve primary stability using the motor and manual torque wrench which will be set to be at least 35 Ncm to allow non- functional immediate loading of chair- side provisional restorations fabricated on abutments, to allow sealing the socket orifice and maintain the original socket architecture , the gap labial to the implant will be filled with bone both the bone and tissue zones till the free gingival margin level to reduce the change in the contour around implants, then the chair side fabricated provisional restoration will be placed. |
Who may qualify
- Ages
- 18 to 60 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- 18-60 years of age
- Patients have hopeless maxillary teeth, a thin buccal plate of bone ≤1 mm and intact overlying soft tissue intact overlying soft tissues in aesthetic zone (EDS-2, Kan classification)
- Periodontally healthy (good oral hygiene)
- Medically controlled patient
Key exclusion criteria (4 listed)
- Smokers
- patients with systemic diseases
- history of chemotherapy or radiotherapy within the past 2 years.
- Acute infection
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 |
|---|---|---|
| GBR surgery using magnesium ShieldAlso: Novamag, Immidate implantAtraumatic flapless tooth extraction using periotomes and forceps will be performed to preserve the available labial bone wall the alveolus will be curetted with a curette, and the remaining inflammatory tissue will be removed. Then, the implant site will be prepared, and the implant will be inserted . A novel magnesium membrane will be placed between thin labial bone wall and soft tissue. the membrane will be cutted and shaped to the proper size using scissors. The edges of the membrane will be shaped and flattened with the sculptor to prevent perforation of the soft tissue, and a layer of bone will be placed between implant and buccal wall. The socket will be sealed with a chair-side fabricated provisional restoration on temporary abutment . | Device | magnesium shield (GBR) |
| Dual Zone concept (DZ) techniqueAtraumatic flapless tooth extraction using peristomes and luxators, then Osteotomy site preparation will be done according to the manufacturers. instructions followed by immediate implant placement. The implant will be 3-4m.m apical to the free gingival margin (FGM) , engaging intact apical and palatal bone to achieve primary stability using the motor and manual torque wrench which will be set to be at least 35 Ncm to allow non- functional immediate loading of chair- side provisional restorations fabricated on abutments, to allow sealing the socket orifice and maintain the original socket architecture , the gap labial to the implant will be filled with bone both the bone and tissue zones till the free gingival margin level to reduce the change in the contour around implants, then the chair side fabricated provisional restoration will be placed . | Procedure or surgery | Dual Zone concept (DZ) technique |
Primary outcome
bucco-palatal dimensional ridge changes
Time frame: Pre-operative , day 1 , then 3,6 , 9 months later
The Bucco-palatal dimensional ridge alterations were assessed via digital scans to assess the difference and changes in the overall ridge dimensions (mm). Reference points were assigned in the baseline measurements of the scans using the Standard Triangle Language (STL) files of the models obtained via digital scanning to allow standardized comparisons after 3,6, and 9 months. The 3D software allowed the alignment of the reference points identified on the models.
9 secondary outcomes
Pink esthetic score (PES)
Time frame: Baseline, 3 , 6,and 9 months
• Volumetric changes ( digital scanner )
Time frame: Pre-operative ,day 1 , 3,6 ,and 9 months
• Mid facial mucosal recession (MFR)
Time frame: Pre-operative baseline and 3,6,9 months
• Labial bone thickness
Time frame: The labial bone thickness will be measured at day 1and 9 months later
• Soft tissue thickness (STT)
Time frame: measured at baseline and 9 months
Visual analogue scale measures postoperative pain (VAS)
Time frame: 3 days , 7 days ,and 14 days
• Probing depth
Time frame: Baseline and 9 months
• Plaque index
Time frame: Baseline and 9 months
• Bleeding index
Time frame: Baseline and 9 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Apr 2026.
- Background: PubMed 39648089Gurbuz E, Ceylan E. Comparison of a non-grafted socket shield technique with guided bone regeneration in immediate implant placement: a randomized clinical trial. Int J Oral Maxillofac Surg. 2025 Apr;54(4):356-364. doi: 10.1016/j.ijom.2024.11.009. Epub 2024 Dec 7.
- Background: PubMed 17092217Araujo MG, Wennstrom JL, Lindhe J. Modeling of the buccal and lingual bone walls of fresh extraction sites following implant installation. Clin Oral Implants Res. 2006 Dec;17(6):606-14. doi: 10.1111/j.1600-0501.2006.01315.x.
- Background: PubMed 28000278Buser D, Chappuis V, Belser UC, Chen S. Implant placement post extraction in esthetic single tooth sites: when immediate, when early, when late? Periodontol 2000. 2017 Feb;73(1):84-102. doi: 10.1111/prd.12170.
- Background: PubMed 15882225Araujo MG, Sukekava F, Wennstrom JL, Lindhe J. Ridge alterations following implant placement in fresh extraction sockets: an experimental study in the dog. J Clin Periodontol. 2005 Jun;32(6):645-52. doi: 10.1111/j.1600-051X.2005.00726.x.
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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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing GBR surgery using magnesium Shield and Dual Zone concept (DZ) technique in people with Immediate Implant Placement, run by British University In Egypt at 1 site in Egypt.
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 4 inclusion and 4 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: looking for participants now, as of the sponsor's last update on 1 Apr 2026. 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 Egypt. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Rim M Ghanem, Bachelor degree of dentistry (0106037279, rim.mazen@bue.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
bucco-palatal dimensional ridge changes (time frame: Pre-operative , day 1 , then 3,6 , 9 months later). 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 NCT07492576, 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 Apr 2026.