BBDF 101 Update

BBDF 101 Update

Theranexus announced yesterday that it is now, more than ever, committed to support patients with rare neurological disorders by focusing all its research efforts on these diseases, starting with CLN3. In this context, the project with Beyond Batten Disease Foundation (BBDF) becomes their flagship project and they have decided to dedicate all resources and efforts to make this project a success to benefit of the CLN3 disease community. Following the initiation of the ongoing Phase l/ll clinical study involving 6 young adult patients, Theranexus and BBDF are in the process of finalizing discussions with the FDA to initiate Phase III.

Read the press release here


Lyon, France – Austin, TX, USA – 3 February 2022 – Theranexus, a biopharmaceutical company innovating in the treatment of neurological diseases and pioneer in the development of drug candidates modulating the interaction between neurons and glial cells, and the Beyond Batten Disease Foundation (BBDF), are starting recruitment for Phase I/II clinical trial to evaluate BBDF-101 in Batten disease.

Franck Mouthon, Chairman of Theranexus, said: “The launch of recruitment is a key step in the development of our drug candidate BBDF-101. This trial will be conducted with BBDF and in collaboration with leading North American referral centers for Batten Disease, a rare, fatal, genetic disorder of the nervous system. Our ambition is to demonstrate the full potential of BBDF-101 in this disease for which there are currently no therapeutic options for patients.”

Following on from the award of Investigational New Drug (IND) approval from the Food and Drug Administration (FDA) for its BBDF-101 program in 2021, Theranexus is now actively recruiting patients for its Phase I/II clinical trial. During the 2-year trial, six patients 17-year-old or older will receive BBDF-101 in escalating doses during the first 4.5 months to establish tolerability and pharmacokinetics of trehalose, miglustat and a combination of trehalose/miglustat. The results of the titration phase will be available at the start of the second half of 2022.

After consulting with the FDA, at the end of 2022 Theranexus plans to start a pivotal Phase III trial involving a pediatric cohort of 30 patients with regular measurements to assess disease progression and safety. The aim will be to compare the development of various signs and symptoms in these patients, as rated on the Unified Batten Disease Rating Scale (UBDRS, neurological and behavioral symptoms, activities of daily living, etc.), over a period of two years, to data from a study of disease progression in a cohort of untreated patients followed for many years at the University of Rochester.

This Phase III trial will be conducted in collaboration with the leading referral centers for Batten disease in the United States which include the Texas Children’s Hospital in Houston, TX, the fourth largest pediatric hospital in the United States, the National Institutes of Health, and the University of Rochester Batten Center in Rochester, NY.

“It is with great gratitude for our patients’ families and donors that we now see the launch of the BBDF-101 clinical program which aims to offer a therapeutic solution for patients suffering from this very rare genetic disease. Achieving this major milestone for the Foundation, in collaboration with Theranexus, is an exciting culmination of almost 12 years of research,” concludes Craig Benson, Chair of the BBDF Board of Directors. 

About Batten disease

Juvenile Batten disease, also known as Spielmeyer-Vogt or CLN3 disease, is a rare, fatal, inherited disorder of the nervous system for which there is no treatment or cure. Juvenile Batten disease belongs to a group of disorders referred to as neuronal ceroid lipofuscinoses (NCLs). Over 400 different errors in 13 genes have been attributed to various forms of NCL, which differ from one another primarily by when symptoms first appear. The first symptom in the juvenile form, progressive vision loss, appears between the ages of 4 and 6 which is followed by personality changes, behavioral problems, and slowed learning. Seizures commonly appear within 2-4 years of the onset of disease. Over time, patients continue to decline mentally and physically. Eventually, those affected become wheelchair-bound, are bedridden, and die prematurely. Psychiatric symptoms or psychosis can appear at any time. Juvenile Batten disease is always fatal; usually by the late teens to early 20s. In the United States and Europe, the juvenile form is the most common of the NCLs, which together, affect nearly 3,000 patients[1] In pathophysiological terms, interactions between neurons and glial cells play key roles in the emergence and progression of all the NCLs.

About Beyond Batten Disease Foundation

Beyond Batten Disease Foundation (BBDF) is the world’s largest nonprofit organization dedicated to funding research for a treatment and cure for juvenile (CLN3) Batten disease. Since its inception in 2008, over $35 million has been invested in research by leveraging donations, co-funding and strategic partnerships. BBDF is spearheading a unique, cohesive strategy, incorporating independent scientific resources and collaboration with related organizations to drive research in juvenile Batten Disease[2]. Today there is a treatment in sight. BBDF funded research has discovered a drug that slows the progression of the disease in Batten models. More information can be found at

About development of BBDF-101 for Batten disease and the partnership between BBDF and Theranexus

The research funded by BBDF and conducted by academics specializing in lysosomal storage disorders (particularly Baylor College of Medicine) led to the discovery of the drug candidate BBDF-101. Following a partnership agreement between BBDF and Theranexus concluded in late 2019 (see below), Theranexus supplemented preclinical development of BBDF-101 with research to establish product safety. Thanks to the research findings, BBDF-101 will now be able to enter the clinical phase following the grant of IND status by the FDA in September 2021.

The clinical development pathway includes:

  • Phase I/II for which recruitment began today,
  • Phase III due to start by the end of 2022 and to include 30 patients with the aim of achieving final results in the second half of 2025,

The development of BBDF-101 is the result of a partnership concluded between BBDF and Theranexus in late 2019. The exclusive, global license agreement between BBDF and Theranexus covers the clinical development of drug candidate BBDF-101 pending approval and its commercial use. Theranexus also plans to continue its research on the NeuroLead platform of drug candidates targeting neurological forms of other lysosomal disorders.

In consideration for this license, the agreement provides for Theranexus to pay BBDF fixed sums on signing, approval, and achievement of commercial objectives post-approval. Moreover, the agreement provides for payment of royalties calculated based on net sales of BBDF-101 once it is marketed by Theranexus


Theranexus is a clinical-stage biopharmaceutical company that emerged from the French Alternative Energies and Atomic Energy Commission (CEA) in 2013. It develops drug candidates for the treatment of nervous system diseases.

Thanks to its knowledge of neuron and glial cell interactions, THERANEXUS is a pioneer in the design and combination of approved substances and has a solid and diversified portfolio of drug candidates in clinical-phase testing. The company’s combined drug repurposing strategy based on a solid commercial footing and a capability to rapidly demonstrate its clinical worth, enables it to produce different high-value-added proprietary drug candidates, significantly reduce development time and costs, and considerably increase the chance of its drugs reaching the market.

Accordingly, THERANEXUS is well-positioned in several indications, including for Parkinson’s and Batten disease, for which there is currently no treatment available.

Theranexus is listed on the Euronext Growth market in Paris (FR0013286259- ALTHX).

More information on:

Click and follow us on Twitter and Linkedln




Financial and Administrative Director




Relations Investisseurs

+33 (0)1 44 71 94 97




Media Relations

+ 33 (0)6 07 76 82 83

[1] National Organization for Rare Disorders (NORD)/Orphanet

[2] Settembre et al, TFEB links autophagy to lysosomal biogenesis, Science 2011

Foundation Helps Sponsor Drafting of Guidelines for Juvenile Batten

The Beyond Batten Disease Foundation (BBDF) is sponsoring Care Beyond Diagnosis in its efforts to draft international guidelines to help clinicians counsel and treat patients with CLN3 disease, or juvenile Batten disease.

Based on clinical evidence and consensus-based recommendations, the guidelines are designed to improve patient care and disease management, as well as facilitate reimbursements.

“Having the support of BBDF is a huge achievement for our team,” Jeffrey Donohue, co-CEO of Care Beyond Diagnosis, said in a press release. “Obviously, the financial commitment is important for us to keep the program going, but looking ahead towards the publication of the guidelines, BBDF will be instrumental in dissemination of the guidelines into family/caregivers’ hands. Engagement from the patient community is a necessity in guideline development.”


Read the full article here.

Beyond Batten Disease Foundation Announces Formal Sponsorship of Care Beyond Diagnosis


Beyond Batten Disease foundation announces formal sponsorship of Care Beyond Diagnosis in effort to establish Clinical Management Guidelines for CLN3 Disease. 

Austin, TX – Raleigh, NC, September 27, 2021 – Beyond Batten Disease Foundation (BBDF) is pleased to announce a sponsorship agreement with Care Beyond Diagnosis (CBD) to establish internationally validated management guidelines for CLN3 Disease, an ultra-rare, fatal neurodegenerative genetic disorder.

Guidelines which have been methodically and transparently developed can both establish and improve upon a standard of care for patient management. Evidence and consensus-based recommendations for care can improve access to effective management and improve the reimbursement process by recognizing medical necessity.

“Having the support of BBDF is a huge achievement for our team. Obviously, the financial commitment is important for us to keep the program going, but looking ahead towards the publication of the guidelines, BBDF will be instrumental in dissemination of the guidelines into family/caregivers’ hands” says Care Beyond Diagnosis Co-CEO, Jeffrey Donohue. “Engagement from the patient community is a necessity in guideline development.”

President and CEO Mary Beth Kiser says, “BBDF has been keenly interested in guidelines for the CLN3 community for many years.  Thanks to the work of Care Beyond the Diagnosis we are able to meet that need and know this will be a valuable resource for our dedicated community of physicians.”

The development program which began in October 2020 is on track to be completed by year end – 2022 ready for submission to a medical journal. CBD predicts a publication will be available for review by Q2 2023.

The effectiveness of clinical guidelines depends on editorial independence, transparency of process and a validated design. CBD organizes its guideline programs in accordance with the Appraisal of Guidelines for Research and Evaluation’s AGREE II Tool, a 23-point assessment used to assess clinical guidelines.

In the rare disease community, research is by nature, is lacking. A guideline development program identifies evidence gaps in existing literature, but through a Modified Delphi Consensus Program, generates new evidence where those gaps exist.

Guidelines for Rare Disease is currently an unmet need within the community. With over 7,000 rare diseases and a vast majority currently without a disease altering therapy, guidelines can offer caregivers and clinicians a tool to provide patients with the highest QoL possible.

CBD published guidelines for CLN2 Disease in April of 2021. The program was assessed by independent reviewers according to the AGREE II Tool and received a 5.7 out of 7, according to Donohue, was the highest assessment for a rare disease guideline publication.

About Beyond Batten Disease Foundation: Beyond Batten Disease Foundation (BBDF) is the world’s largest non-profit organization dedicated to funding research for a treatment and cure for juvenile (CLN3) Batten disease. Since its inception in 2008, over $35 million has been invested in research by leveraging donations, co-funding and strategic partnerships. BBDF is spearheading a unique, coordinated strategy that incorporates independent scientific resources and collaborates with related organizations to drive research in CLN3 disease. More information can be found at

About Care Beyond Diagnosis: Care Beyond Diagnosis (CBD) is a non-profit organization dedicated towards supporting patients, families and communities following a rare disease diagnosis. CBD has a vision for improved patient-outcomes through both a  small scale, patient specific approach and through large scale, internationally collaborated Rare Disorder guideline development programs.

BBDF 101 Wins FDA Investigational New Drug Approval to Pursue Clinical Trials

Lyon, 7 September 2021 – Theranexus, a biopharmaceutical company innovating in the treatment of neurological diseases, and Beyond Batten Disease Foundation (BBDF), announce receipt of Investigational New Drug (IND) approval from the Food and Drug Administration (FDA) to launch a Phase I/II clinical trial of their drug candidate BBDF 101 for juvenile Batten disease, a rare, fatal, genetic disorder.

Batten disease belongs to a group of disorders referred to as neuronal ceroid lipofuscinoses (NCLs).

Read More

Batten Disease Research- $117 Honorarium Provided

As an organization committed to supporting Batten disease patients and their families, we are writing to bring your attention to a research study that seeks to understand the challenges faced by patients and families impacted by Batten.

Beyond Batten Disease Foundation was established to eradicate juvenile Batten disease by raising awareness and funds to accelerate research for a treatment or cure. We are collaborating with Nita Patel of Amicus Therapeutics, other Batten disease related patient organizations and Engage Health (a health research firm), on this important study. Results from this study will be submitted for publication in order that others can learn from your experiences.

We hope you will consider participating! To be eligible you must be:

  • A person diagnosed with a CLN1, CLN3 or CLN6 variant of Batten disease who is age 18 years or older OR
  • Their parent/legal guardian*
  • Diagnosis of a CLN1, CLN3 or CLN6 variant of Batten disease by provision of a proof of disease form
  • Able to read, write and communicate in English or German
  • Able to grant informed consent
  • Willing to complete a survey and RSVP, and to participate in a 50-minute telephone interview
  • Ability to view or receive a document from the interviewer before or during the interview (web browser, ability to receive a text, fax or document by mail or email)

*Please note: A parent whose child has passed on in the last 5 years is able to participate in the Survey/RSVP. Only one family member will be eligible to complete the RSVP and interview for one patient. If a family has more than one person with Batten disease, one family member may be eligible to complete the RSVP and interview for each patient.

Involvement consists of filling out a Survey/RSVP, answering a few short questions to ensure you qualify, and providing a document that shows proof of disease (a school note, copy of chart note or another document). This will take about 10 minutes. You will then be eligible to participate in a 50-minute telephone interview conducted in English. For your time, you will be paid a $117 honorarium if you complete the interview. No preparation is required to participate, but you will need to be at a computer.

If you would like to participate please:
Go to Understanding the Challenges Faced by Patients and Families Impacted by Batten Disease Through the Eyes of Patients to fill out the survey and RSVP with dates and times that you are available. Please note that times outside of standard business hours are available.
At the screen, please check the box that says “Check if you have no code” to proceed to the RSVP
If you are unable to access the RSVP and survey from the link above, please copy and paste the following URL into your browser bar to access it:
Once you have completed the survey and RSVP, Engage Health will contact you to confirm the date and time of your telephone interview, or to notify you that the interviews are full, if that is the case.

If you would like to forward this invitation to other families living in the United States who are impacted by Batten disease, please do so, but remember that the interviews are being conducted on a very limited basis, and participation is first come, first served. Please respond quickly if you would like to participate!

Thank you for your interest,

Mary Beth Kiser
President and CEO

Run to the Sun 2021 Thank You!

A note from Austin Youth Fitness:
“Thanks to everyone who participated in the Run to the Sun and David Phillips Memorial Mile! Together we raised $4,010 for the Beyond Batten Disease Foundation!

If you haven’t made a donation yet, there’s still time to do so here!
I am working on distributing shirts, but still need some orders for the online store in order for them to be finalized. If you registered after February 20th, you did not officially get a shirt and will need to order one here.

Congrats to our top fundraiser, Felix Statler who raised $740!!! Felix also clocked his mile time at 7:50!

We hope you keep running, keep living life to the fullest, and have a great rest of your semester and 2021! Brighter days ahead where we can all Run to the Sun together!”

BBDF Announces Agreement with Actelion Pharmaceuticals Ltd to Provide Drug Product for BBDF-101

Austin, Texas, March 2, 2021

Beyond Batten Disease Foundation (BBDF) is pleased to announce an agreement with Actelion Pharmaceuticals Ltd, a Janssen Pharmaceutical Company of Johnson & Johnson, to provide Zavesca® (miglustat) for the development of BBDF-101, a proprietary combination of miglustat and trehalose to treat juvenile Batten disease (CLN3). Janssen will provide drug supply for the clinical trials and Extended Access Program, and right of reference to data within the Zavesca New Drug Application (NDA) to support the development of BBDF-101.

Read More

Manuscript accepted by the journal

NEUROPHARMA: Evaluating and modulating TFEB in the control of autophagy: towards new treatments in CNS disorders

Manuscript by da Costa, Anaelle; Metais, Thibaud; Mouthon, Franck; Kerkovich, Danielle; Charvériat, Mathieu, was successfully accepted by the journal “Fundamental & Clinical Pharmacology.”

1 2 3 24