
Nanos and drugs

Nanos and drugs
By AVICENN Team – Last Added January 2023
What research and what nano applications concerning drugs?
We have little reliable and up-to-date information regarding nano research and applications in the pharmaceutical sector1See the references listed at the bottom of the page in the "Elsewhere on the web" section for more details..
The National Agency for the Safety of Medicines and Health Products (ANSM) published a report in 2011 on theBiological evaluation of medical devices containing nanomaterials.
Radio silence then… it took almost ten years to obtain a new report, composed of unfortunately relatively dated information:
- THEarticle 60 of the law on the modernization of our health system had planned for the government to submit a report to Parliament in the summer of 2017 on nanomaterials in medicines and medical devices.
- But whilein July 2018, the Ministry of Health announced its forthcoming publication, mid-2020, we still had no record of this report.
- Despite its numerous reminders to the Ministry of Health, AVICENN had not succeeded in obtaining more information, except that the report, produced by the ANSM, would be finalized and in the process of interministerial validation… since at least December 2017!
- In July 2020, AVICENN therefore sent a registered letter to the Prime Minister and to the Minister of Solidarity and Health to demand the dissemination of the government report on nanomaterials in medicines and medical devices which should have been made public three years ago.
- Le report received on August 3, 2020 presents neither date nor author(s), nor precision on the methodology, and contains mostly old references and important limits.
The recommendations of the latest ANSM report are nevertheless interesting and remain, more than ever, relevant:
- changes to be made to standardization and regulations for better identification and assessment of nanomedicines and medical devices
- changes to R-nano register (converging with the requests made by the actors of precaution and prevention)
- increased involvement of the ANSM on the subject
- etc.
Presence (undesired) of nanoparticles in drugs
The E71 in the hot seat
E171, banned in food since 2020, is present in many drugs2– In 2017, Que Choisir revealed that "4 drugs contain the dye E000" (composed in part of titanium dioxide nanoparticles).
– In 2018, 60 Million consumers brought the confirmation by tests of the presence of these nanoparticles in 6 widely used drugs : Efferalgan – Upsa, Spasfon – Teva, Zyrtecset – UCB Pharma, Nurofen – Reckitt Benckiser, Doliprane child – Sanofi, Euphytose – Bayer.
– In December 2021, in its exclusive issue on nanoparticles, the magazine Time published the list of the 800 most prescribed drugs that contain titanium dioxide.
This excipient, composed of nanoparticles of titanium dioxide, has no therapeutic purpose; it is used as a colorant and/or as an opacifier in the film-coating of tablets or in the capsules of capsules for its protective properties against UV radiation. It is therefore to be dissociated from “nano-drugs”, for their part deliberately designed on a nano scale with the aim of crossing physiological barriers and bringing active substances more quickly and/or more precisely into the body.
Many voices have therefore been raised in recent years to demand the withdrawal of E171 in drugs.
Thomas Borel, director of scientific affairs at LEEM, the professional organization of pharmaceutical companies in France, considers that "the E171 excipient ensures the stability of the drug" and that it is therefore " essential ", for example to ensure protection and ingestion of the drug”3See Why Titanium Dioxide Was Banned From Plates, But Not Toothpaste, Challenges, June 7, 2019 and "Removing E171 from drugs would be extremely cumbersome", Rose Up, August 28, 2019.
That said, brands are now promoting TiO2-free drug coatings4See for example the Biogrund marketing campaign launched in March 2019:
- Challenges of TiO2 free film coatings, March 25 2019
- Titanium dioxide (TiO2) – a critical excipient?, March 19 2019
- Replacement of titanium dioxide (TiO2) in tablet film coatings
- Are you facing the challenge of replacing TiO₂ in your coating formulations?. And in 2019, Sanofi confirmed that it was considering replacing titanium dioxide in its drugs.5See speech by René Labatut, Vice President, Director of Technological Innovation Strategy, Sanofi, at the NanoResp Forum, Medicines and vaccines: what are their nanoparticles used for?, May 20, 2019. In May 2018, Sanofi's TiO2 nanoparticle management plan was presented at the SOFHYT forum on emerging risks..
Other nanoparticles of concern in drugs
Titanium dioxide nanoparticles (E171) are not the only problem. The harmlessness of other nanoparticles also present in drugs is subject to caution – in particular those used as dyes (iron oxides in particular) or silica. The work carried out by ANSES on the risks of nanos in food will they quickly shed light on these questions?
To be continued ...
- In French :
- LNE, Workshop on the theme of nanomedicines and medical devices based on nanomaterials, June 30 2022
- European Directorate for the Quality of Medicines and Healthcare, Quality requirements for nanomedicines: what role for the European Pharmacopoeia?, June 7-8, 2022
- What to choose, Ban on titanium dioxide – European Medicines Agency put the brakes on, Oct. 28 2021
- CNRS Ile de France, GIF on Yvette, Nanomedicines, on a small scale for large applications, June 10 2021
- Daily Geek Show, These medicinal nanoparticles are particularly promising against cancer, January 4 2021
- The Conversation, What happens to gold nanoparticles from drugs in our body?, Florence Gazeau and Florent Carn, March 3, 2020
- the novelist, Environment: drug nanoparticles risk dispersing in natureJanuary 2020
- Galien Institute, Paris-Sud University, Nanos full of bronchial tubes, Video, “Ideas full of Tech”, November 2019
- Academy of Sciences – National Academy of Pharmacy, Nanomedicines: where did we come from and where are we going?, Oct. 16 2019
- NanoResp Forum, Medicines and vaccines: what are their nanoparticles used for?, May 20 2019
- AVICENN, After food, the suspension of titanium dioxide in toothpastes and medicines?,Veillenanos, March 28, 2019
- Saadia Kerdine-Romer, Hervé Hillaireau (Labex LERMIT), Nanoparticles are promising drug carriers, but what about their toxicity, especially on the immune level?, Life Sciences UPSaclay, March 1, 2019
- Arnaud Pallotta and Jordan Beurton, Nanoparticles and drugs, Pint of Science Festival, Target Therapeutics and Formulation Laboratory – CITHÉFOR (University of Lorraine), Nancy, March 27, 2019
- Direct Stock Exchange, Sanofi partners with a Lyon start-up for the production of an innovative nanoparticle in oncology, February 20 2019
- APM news, The ANSM recommends changing the regulations on nanomaterials in health products (report), February 13 2019
- University of Lorraine, Nanoparticles in drugs: how to ensure quality control, The Conversation, December 17, 2018
- CNRS, Nanomaterial delivers drugs under infrared light, Institute of Physics and Chemistry of Materials of Strasbourg (IPCMS, CNRS/University of Strasbourg) and Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES, CNRS/University of Strasbourg), November 26, 2018
- Fiva, Blueberry Therapeutics has raised approximately $12,7 million to develop nano-medicines that treat skin and nail infections, August 2018 (Investors included China Medical Venture Investment and A&B Company, a Hong Kong-based health technology manufacturer)
- Ministry of Solidarity and Health, Risks linked to the presence of titanium dioxide nanoparticles in medicinal products, answer to the written question of Senator François Bonhomme, July 2018
- Poirot-Mazeres I, Drugs in nanoparticle form and medical devices containing nanomaterials: a new deal for the benefit-risk balance, in: Louis Dubouis Days, The new challenges of the pharmaceutical policy of the European Union. For safe, innovative and accessible medicines, Toulouse Capitole University, May 23-24, 2018
- Hello Doctors?, Levothyrox: metal nanoparticles in the new formula?, May 2 2018
- cordis, The delivery of drugs in the form of nanoparticles to combat antibiotic resistance, Cyclon Hit, April 30, 2018
- 60 million consumers, Drugs: nanos in Efferalgan and Nurofen, March 22 2018
- LNE, Nanomaterials and drugs: how to characterize and measure them?, Webinar, February 6, 2018
- What to choose, Nanoparticles – Beware, they are hiding everywhere!, Monthly n° 566, February 2018
- ANSM, Nanomaterials in medicines and medical devices, date ? 2017? (report obtained by AVICENN on August 3, 2020)
- European Parliament and Council of the European Union, European regulation relating to medical devices n° 2017/745, April 5, 2017:
- The devices are designed and manufactured in such a way as to reduce as far as possible the risks associated with the size and properties of the particles which are, or are likely to be, released into the patient's or user's body, unless they enter in contact only with intact skin. Particular attention is paid to nanomaterials.
- All devices that incorporate or consist of a nanomaterial fall under:
- class III if they have a medium or high internal exposure potential,
- Class IIb if they have a low potential for internal exposure, and
- Class IIa if they have negligible internal exposure potential.
- UFC What To Choose, Dye E171 Medicines too!, February 4 2017
- AVICENN, What vigilance regarding nanomaterials in drugs and medical devices?,veillenanos.fr, July 2016
- Michele Rivasi, The Commission has no exhaustive list of nanomaterials present in medicines authorized on European soil, September 3 2015
- LNE, Nanoparticles and Medical Devices: How to respond to regulations regarding the characterization of materials?, Webinar, December 11, 2014
- LEEM, Applications of nanotechnology to medicine, February 13 2014
- Afssaps (now ANSM), Recommendations for the toxicological evaluation of medicinal products in nanoparticle formOctober 2011
- Afssaps (now ANSM), Biological evaluation of medical devices containing nanomaterials, Scientific Report, February 2011
- In English :
- The website of the European Nanomedicine Characterization Laboratory (EUCL)
- Orthogonal and complementary measurements of properties of drug products containing nanomaterials, Simon CG et al., Journal of Controlled Release, 354: 120-127, February 2023
- Squalene-based multidrug nanoparticles for improved mitigation of uncontrolled inflammation, Dormont F et al., Science Advances, April 27 2020
- Measuring nanoparticles in medicinal products, EU Science Hub (JRC), 10 May 2019
- Nanopilot : “A Pilot Plant for the Production of Polymer-based Nanopharmaceuticals in Compliance with GMP”
- Nanopharmaceuticals and Drug Delivery: Challenges and Breakthroughs, Dublin, 16-17 August 2018
- Smart nanomaterials for drug delivery: past, present and future, Satapathi S, International Journal of Drug Research and Technology, [Sl], 8(1), February 2018
- Characterization of nanoparticles intended for drug delivery, Scott E. McNeil, Editor. Methods in Molecular Biology. Flight. 1628, Humana Press, New York, NY. ISBN: 978-1-4939-7350-7, 2018
- FDA, “Drug Products, Including Biological Products, that Contain Nanomaterials” – Guidance for Industry – Draft guidance, December 2017 (submitted for consultation until March 2018)
- Nature Nanotechnology, The evolving landscape of drug products containing nanomaterials in the United States, D’Mello SR et al., 2017
A question, a remark ? This sheet produced by AVICENN is intended to be supplemented and updated. Please feel free to contribute.
News on the subject
The next nano appointments
- 14th meeting of the “nano and health” dialogue committee
- Organizer: ANSES
- Website : www.anses.fr
- Technical Day
- Organizer: National Metrology and Testing Laboratory (LNE)
- On the agenda: identification of nanomaterials, recent technological innovations in terms of particle size characterization, areas for progress to be considered
- Upcoming program
- Website : www.lne.fr/…
- 8th International Conference on Health Issues for a Responsible Approach to Nanomaterials
- June 5-9, 2023
- Organizer: Commissariat for Atomic Energy and Alternative Energies (CEA)
- Website : www.cea.fr/cea-tech/pns/nanosafe/…
This listing was originally created in February 2019
Notes & references
- 1See the references listed at the bottom of the page in the "Elsewhere on the web" section for more details.
- 2– In 2017, Que Choisir revealed that "4 drugs contain the dye E000" (composed in part of titanium dioxide nanoparticles).
– In 2018, 60 Million consumers brought the confirmation by tests of the presence of these nanoparticles in 6 widely used drugs : Efferalgan – Upsa, Spasfon – Teva, Zyrtecset – UCB Pharma, Nurofen – Reckitt Benckiser, Doliprane child – Sanofi, Euphytose – Bayer.
– In December 2021, in its exclusive issue on nanoparticles, the magazine Time published the list of the 800 most prescribed drugs that contain titanium dioxide - 3See Why Titanium Dioxide Was Banned From Plates, But Not Toothpaste, Challenges, June 7, 2019 and "Removing E171 from drugs would be extremely cumbersome", Rose Up, August 28, 2019
- 4See for example the Biogrund marketing campaign launched in March 2019:
- Challenges of TiO2 free film coatings, March 25 2019
- Titanium dioxide (TiO2) – a critical excipient?, March 19 2019
- Replacement of titanium dioxide (TiO2) in tablet film coatings
- Are you facing the challenge of replacing TiO₂ in your coating formulations? - 5See speech by René Labatut, Vice President, Director of Technological Innovation Strategy, Sanofi, at the NanoResp Forum, Medicines and vaccines: what are their nanoparticles used for?, May 20, 2019. In May 2018, Sanofi's TiO2 nanoparticle management plan was presented at the SOFHYT forum on emerging risks.