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Presentation of MATTISSE, our innovative 3D-printed and resorbable breast bioprosthesis dedicated to autologous breast reconstruction. Today, only 3 out of 10 women undergo breast reconstruction after mastectomy. MATTISSE aims to offer a simpler, less invasive and more durable alternative by regenerating living tissue using the patient’s own cells and tissues. Combining regenerative medicine and advanced manufacturing, this technology opens new perspectives for tissue reconstruction after cancer.

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Transcript
00:00Ladies and gentlemen, please welcome Julien Paillain, co-founder and CEO of Lattice Medical.
00:11Hello, Julien.
00:17Well, hello everyone, ladies and gentlemen, it's a pleasure to be here today.
00:22Hope you enjoy a good session in VivaTech today.
00:25So I'm the CEO and co-founder of Lattice Medical.
00:29We are a medtech company essentially working in the field of breast cancer.
00:34You may know that one woman on eight, unfortunately, will be touched by the breast cancer.
00:40And we perform around 650,000 mastectomies every year to cure the cancer.
00:47And this mastectomy needs a breast reconstruction.
00:52And we have almost 30% of women who have the breast reconstruction.
00:58We have two different techniques to reconstruct the breast.
01:01The first one is the breast implant, mostly made of silicone.
01:07On the right, bottom right, you have a rupture, a collapse of a silicone device.
01:13From the French health authorities, 30% of silicone implants collapsed before five years.
01:20And on the left, you have the risk of a capsule.
01:24It's a fibrotic tissue surrounding the device.
01:27And for both cases, you need to remove the breast device.
01:33And every 10 years, this breast implant needs to be removed to replace it.
01:39So you need several surgeries.
01:43Plastic surgeons have developed autologous surgeries without any device.
01:48But it's a real complex surgery.
01:51You need to harvest a lot of tissue, fat tissue on your back, like this.
01:56And you have a scar of around 25 centimeters.
02:01And it's an impact about the donor site, about the sensibility.
02:06And the surgery takes four hours.
02:09So this is where we are.
02:11We try to tackle these two challenges by offering a new way of breast reconstruction
02:16by taking advantages of both techniques.
02:20And our solution is Matisse.
02:23So Matisse is a breast medical device, a tissue engineering chamber.
02:28We operate like a breast implant.
02:31So the surgeon opens in the mammary fold.
02:34And the surgeon will harvest a small quantity of tissue, fat tissue, just here,
02:40in the intercostal area.
02:43The surgeon raises that tissue.
02:45And the tissue will be inserted inside the Matisse device.
02:50So it's empty inside.
02:52You have the bottom layer.
02:54It's called the scaffold.
02:55We put the tissue on that.
02:57And then we close with the chamber.
03:00We have 21 different sizes.
03:03It's 3D printed.
03:04And it's made of a resorbable material.
03:08So the device is resorbable.
03:11We fix the device on the chest.
03:15And during six months, the device will help the tissue to regenerate inside,
03:21feeling slowly the inner part.
03:23And in the meantime, the device resorbs,
03:26leaving a woman with her own tissue without any long-term material.
03:31So Matisse brings three features.
03:34The regeneration of your own tissue.
03:36A degradable implant.
03:38And it's only a one-hour procedure instead of four hours.
03:45We have done the first clinical trial in France and Spain,
03:49involving several patients in the study.
03:52You can see on this MRI, done seven days after the surgery.
03:58In red, you have the Matisse device.
04:01In green, this is the tissue harvested at the beginning.
04:06And only three months after, the tissue fill in the inner space.
04:13Without any pain, we have a normal wound dealing process.
04:19And we confirm the surgery about one hour.
04:22And if we follow longer the patient, after one year and two years,
04:28we can see that the device is resorbed.
04:32After 12 months, we don't have any visualization about the device.
04:37And after two years, the reconstruction is done.
04:40The implant is resorbed and the woman gets back her own breasts.
04:49And on the top of that, we have developed a unique and scalable 3D printing tool in a clean room.
04:56So we do ourselves, the biomaterial and the device.
05:01We have implemented a pilot scale unit with 3D printers.
05:05We have a booth just behind here.
05:08And you can see a printer doing a Matisse implant.
05:11So we generate the biomaterial.
05:15We have any design to produce the shape of the Matisse device.
05:21Then we have some post-processing operation, washing, cleaning.
05:28We have the sterilization process.
05:31And then we have a quality control on any device.
05:34Visual inspection, dimensional, and also with the mass.
05:42This is compliant to the medical quality standards.
05:45We are certified ISO 13485.
05:48And we have a capacity today to produce more than 1,000 implants per year.
06:01So now we are still in the clinical trials.
06:04We will involve more patients next year on a multicentric study in France and Spain.
06:11And we expect to have the C mark in 2028.
06:16And then we will pursue some studies on reimbursements to get a reimbursement code on Matisse.
06:25And in the meantime, we will develop our U.S. roadmap to also get a certification on the U.S.
06:33market, the biggest market in the world.
06:37You have here a view of the team.
06:40We are 25 people mixing engineers, doctors, surgeons, medical doctors in the field of plastic surgery, oncology, gynecology.
06:50The company succeeded in three different routes on fundraising.
06:54And the last one, last year, we raised 43 million euros to expand our clinical trial activity and industrial activity.
07:04And the company has several partnerships in France with a producer of implants and also different providers in software and
07:15research.
07:16And we work with the best key opinion leaders in the field of breast reconstruction and plastic surgery in Europe.
07:25Our business model will be a mix between direct sales and distribution.
07:32The product targets two different indications, the breast reconstruction in cancer and also the aesthetic market with the breast augmentation.
07:41So for the reconstruction, we will commercialize ourselves the product and we will target a reimbursement price on the product.
07:49And for the high aesthetic market, we aim to conclude a licensing agreement with a top-tier company in that
07:56field.
07:57We aim a $2,000 price for Matisse in Europe and $8,000 in the U.S. with the reimbursement
08:05code.
08:05And for the high aesthetic, the price will be fixed around 1,400 euros.
08:13And you have here our revenue forecast since we launched the product in 2028 with the licensing opportunity.
08:22I'd like to thank you for your attention and I think you have one or two minutes for any questions.
08:28Thank you so much.
08:36Yes, you have time for questions.
08:40Perfect.
08:42Yes.
08:43Oh, a lot of questions.
08:45We like that.
08:49I wanted to ask why the price for the aesthetic market is cheaper than the other market.
08:58Because of the benefits of the device and also the market.
09:02You have already a market of breast implants in high aesthetic with a certain fixed price.
09:08And it's normal to be close to that price.
09:12And for the reconstruction, the benefits is higher for women.
09:18So, that's why we explain a higher price for reconstruction.
09:27The 3D printing procedure will be the same?
09:31Everything will be the same?
09:32Just the price will be different?
09:35Or, like, in the first place, you will have something different?
09:41I mean, for more reconstruction, more benefit for the cells because before there was also cancer?
09:49So, the procedure should be almost the same.
09:52But the difference is the size of the implants.
09:54In breast aesthetics, you have already a breast.
09:57So, you put smaller implants.
09:59In breast reconstruction, you lose your whole breast.
10:02So, you need a bigger implant and a bigger amount of fat.
10:04So, the procedure is a bit longer and the device too.
10:11I'd like to congratulate you for trying this.
10:15It's very challenging.
10:16But how do you get through all these regulatory phases?
10:20Because you have to check the material, the consistency.
10:24Will it impact?
10:26Or can it have some challenges?
10:28It's difficult to hear.
10:30Sorry.
10:33What are the challenges by the material itself which you put inside the body?
10:38Will it have some kind of effects?
10:43So, it's a medical device.
10:45It's an implantable device.
10:46So, you need a long follow-up on patient to see any side effects about the reservoir material.
10:53But we have chosen a material which is already used in medical application.
10:59The biomaterial is the same like suture yarn.
11:03And the sutures are used since 40, 50 years from now in the medical area.
11:07So, we are confident about the risk of side effects.
11:15Thank you so much.
11:16Julia Payen, co-founder and CEO of Lattice Medical.
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