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Significant Events and Transactions | 9 Months Ended
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Sep. 30, 2024
Significant Events And Transactions of the Period Disclsure [Abstract] |
Significant Events and Transactions | Note 2: Significant Events and Transactions Clinical programs United States Regulatory History and Current Status In August 2020, the Company received a Complete Response Letter (“CRL”) in which the FDA indicated it could not approve the Viaskin Peanut BLA in its then-current form. The FDA identified concerns regarding the impact of patch-site adhesion on efficacy and indicated the need for patch modifications, followed by completion of a new human factors study. In addition, the FDA indicated that supplementary clinical data would need to be generated to support the modified patch. Finally, the FDA requested additional Chemistry, Manufacturing and Controls (“CMC”) data. The FDA did not raise any safety concerns related to Viaskin Peanut. In January 2021, the Company received written responses from the FDA to questions provided in the Type A meeting request that the Company submitted in October 2020 following receipt of the CRL. The FDA agreed with the Company’s position that a modified Viaskin Peanut patch should not be considered as a new product entity provided the occlusion chamber of the current Viaskin Peanut patch and the peanut protein dose of 250 µg (approximately 1/1000 of one peanut) remains unchanged and performs in the same way it has performed previously. In March 2021, the Company commenced CHAMP (Comparison of adHesion Among Modified Patches), a Phase 1 trial in healthy adult volunteers to evaluate the adhesion of five modified Viaskin Peanut patches to confirm consistency of efficacy data between the existing and modified patches. The study was completed in the second quarter of 2021 and the Company selected the circular patch for further development, which is larger in size relative to the current patch and circular in shape. In May 2021, the Company submitted a proposed protocol to the FDA for STAMP (Safety, Tolerability, and Adhesion of Modified Patches), a 6-month safety and adhesion study. On October 14, 2021, in an Advice/Information Request letter, the FDA requested the Company conduct a stepwise, or sequential, approach to the modified Viaskin patch development program by conducting allergen uptake comparison studies (i.e., ‘EQUAL in Adults’, EQUAL) and submitting the data for FDA review and feedback prior to starting the STAMP study. After careful review of the FDA’s information requests, the Company decided not to pursue the approach to the development plans for Viaskin Peanut as requested by the FDA. The Company estimated that the FDA’s proposed sequential approach would require at least five rounds of exchanges with the FDA to achieve alignment before initiating STAMP, the 6-month safety and adhesion study. As such, in December 2021, the Company announced its plan to initiate a pivotal Phase 3 placebo-controlled efficacy trial for a modified Viaskin Peanut patch (mVP) in children in the intended patient population. The Company considered this approach the most straightforward to potentially demonstrate effectiveness, safety, and improved in vivo adhesion of the mVP. Following written exchanges with the FDA, the FDA confirmed it was aligned with the Company’s change in strategy. On September 7, 2022, the Company announced the initiation of VITESSE, a Phase 3 pivotal study of the mVP in children ages 4-7 years with peanut allergy. On September 21, 2022, the Company announced it received from FDA a partial clinical hold letter related to certain design elements of VITESSE. On December 23, 2022, the Company announced that the FDA lifted the partial clinical hold. The FDA confirmed the Company satisfactorily addressed all clinical hold issues and the VITESSE phase 3 clinical study could proceed with the revised trial protocol. On March 7, 2023, the Company announced that the first patient was screened in the VITESSE study. The Company announced on September 23, 2024 that subject screening was completed in the third quarter of 2024 and that topline results are anticipated by fourth quarter of 2025. In June 2022, the Company announced positive topline results from Part B of EPITOPE, which enrolled 362 subjects ages 1-3 years, of which 244 and 118 were in the active and placebo arms respectively. Enrollment was balanced for age and baseline disease characteristics between the active and placebo treatment arms. On April 19, 2023, the Company outlined the regulatory pathway for Viaskin Peanut in children 1-3 years old after the FDA confirmed in written responses to the Company’s Pre-BLA meeting request that the Company’s EPITOPE phase 3 study met the pre-specified criteria for success for the primary endpoint and did not request any additional efficacy study in this age group. The FDA required additional safety data to augment the safety data collected from EPITOPE in support of a BLA. On July 31, 2023, the Company announced receipt of feedback from FDA on two supplemental safety studies, COMFORT Children and COMFORT Toddlers. On November 9, 2023, the Company submitted the protocol for its COMFORT Toddlers supplemental safety study in 1 – 3 years-old to FDA. The Company received comments and queries to the protocol from the FDA on March 11, 2024. On July 30, 2024, the Company announced that it and the FDA had been engaged in ongoing dialogue since May 2023 on the COMFORT Toddlers supplemental safety study in 1 – 3 years-old with a peanut allergy. Since March 2024, much of the dialogue between DBV and FDA regarding the COMFORT Toddlers supplemental study had focused on patch wear-time experience, including how prescribers would advise parents and caregivers to manage day-to-day variability in patch wear time. The Company proposed an approach, informed by the EPITOPE efficacy data, that focuses on the user experience during the first 90-days of treatment. The Company submitted to the FDA draft labeling for Section 2 – Dosing and Administration, for a potential Viaskin Peanut Prescribing Information (PI), along with comprehensive supportive data and analyses. Within the first 90-days of treatment (excluding the lead-in dosing period) it is possible to identify those patients who are likely to have a robust clinical efficacy response based on patch wear time experience (i.e., “Label-in” patients). The proposed PI recommends continuation of treatment for these patients. With the same 90-day approach, patients less likely to have a robust clinical efficacy response, identified by their patch wear-time experience, would be identified as “Label-out” patients. In these instances, the PI would recommend a shared decision-making process, between the health care provider and the parent or caregiver, to determine whether treatment should be discontinued. The Company also announced on November 9, 2023, 2-year results from the ongoing phase 3 open-label extension to the EPITOPE trial, EPOPEX, of Viaskin Peanut in toddlers. On October 22, 2024, the Company announced positive regulatory updates for the Viaskin Peanut patch in the United States and Europe. DBV has agreed to guidance provided by the FDA on a potential pathway under the Accelerated Approval Program for the Viaskin Peanut patch in toddlers ages 1 – 3 years-old. FDA guidance for Accelerated Approval include three qualifying criteria: 1) that the product candidate treats a serious condition, 2) that the product candidate generally provides a meaningful advantage over available therapies, and 3) that the product candidate demonstrates an effect on an intermediate clinical endpoint that is reasonably likely to predict clinical benefit. FDA confirmed that the Company has met criterion 1 and 2. Regarding criterion 3, FDA has provided guidance and suggestion regarding the intermediate clinical endpoint, which the Company has agreed to in informal discussions with the FDA. The Company intends to formalize the Accelerated Approval guidance provided by FDA via submission of a meeting request to confirm the general elements of the two study components: the COMFORT Toddlers safety study, to be completed before BLA submission, and the confirmatory effectiveness study, including the third Accelerated Approval criterion regarding the intermediate clinical endpoint. The Company expects that the confirmatory study will be initiated by the time of BLA submission and would run in parallel to commercialization in the United States, if Viaskin Peanut is approved. The Company announced further that it has aligned with FDA on a wear time collection methodology in COMFORT Toddlers that provides a practical approach for subjects and families, is intended to generate sufficient data to support a BLA submission, and places wear time into an acceptable clinical hierarchy relative to other study endpoints. DBV has initiated study start-up activities and plans to screen the first subject in the second quarter of 2025. The company anticipates enrolling approximately 300 – 350 subjects on active treatment into the safety study, which would bring the total Viaskin Peanut patch safety database in toddlers to approximately 600 subjects, consistent with prior FDA guidance. With this path forward, the BLA submission for Viaskin Peanut patch in 1 – 3 years-old under the Accelerated Approval program is anticipated to be supported by: i. Positive efficacy and safety data from DBV’s previously completed EPITOPE Phase 3 Study; and ii. Additional safety data generated in COMFORT Toddlers supplemental safety study to be initiated in the second quarter of 2025. The Company submitted the protocol for its COMFORT Children supplemental safety study in ages 4-through-7-years-old to the FDA on November 29, 2023. On October 22, 2024, the Company announced further that the COMFORT Children safety study is expected to be initiated in the second quarter of 2025. This study plans to enroll approximately 250 subjects to raise the total number of 4 – 7 years-old on active treatment across the development program to approximately 600, consistent with prior FDA guidance. The VITESSE phase 3 efficacy trial of the Viaskin Peanut patch in peanut allergic children ages 4 – 7 years-old and the COMFORT Children safety study will constitute the core studies for a BLA submission in 4 – 7 years-old. Viaskin Peanut —European Union Regulatory History and Current Status On December 20, 2021, the Company announced it withdrew the Marketing Authorization Application (“MAA”) for Viaskin Peanut and formally notified the European Medicines Agency (“EMA”) of our decision. On October 22, 2024, the Company announced it received scientific advice from EMA on an indication for ages 1 – 7 years-old in Europe. The Company sought scientific advice from EMA regarding the components of a MAA for the Viaskin Peanut patch. Previous advice obtained from two local country regulatory health authorities indicated a potential path for a 1 – 7 year-old registration with one patch, the modified patch. The EMA recently confirmed through scientific advice that the completed EPITOPE study in 1 – 3 years-old, and a positive VITESSE study in 4 – 7 years-old, could constitute an MAA submission for a 1 – 7 years-old indication for peanut allergy patients using the modified patch, along with a new safety study in toddlers ages 1 – 3 years-old with the modified patch. Timing for the initiation of this new safety study to satisfy the important EU market is currently being planned. The Company intends to resubmit the MAA when that data set is available. Viaskin Peanut for children ages 1-3 In June 2020, the Company announced that in Part A of the EPITOPE phase 3 clinical study subject in both treatment arms showed consistent treatment effects after 12 months of therapy, as assessed by a double-blind placebo-controlled food challenge and biomarker results. Part A subjects were not included in Part B and the efficacy analyses from Part A were not statistically powered to demonstrate superiority of either dose versus placebo. These results validated the ongoing investigation of the 250 µg dose in this age group, which was the dose studied in Part B of the EPITOPE phase 3 clinical study. Enrollment for Part B of EPITOPE was completed in the first quarter of 2021. In June 2022, the Company announced positive topline results from Part B of EPITOPE, which enrolled 362 subjects ages 1 to 3 years, of which 244 and 118 were in the active and placebo arms respectively. Enrollment was balanced for age and baseline disease characteristics between the active and placebo treatment arms. On April 19, 2023, the Company outlined the regulatory pathway for Viaskin Peanut in children 1-3 years old after the FDA confirmed in written responses to the Company’s Pre-BLA meeting request that the Company’s EPITOPE phase 3 study met the pre-specified criteria for success for the primary endpoint and did not request any additional efficacy study in this age group. The FDA requires additional safety data to augment the safety data collected from EPITOPE in support of a BLA. This new safety study will also generate patch adhesion data and will include updated instructions for use. On May 10, 2023, the New England Journal of Medicine (“NEJM”) published results from the EPITOPE phase 3 clinical study that demonstrated EPIT with Viaskin Peanut was statistically superior to placebo in desensitizing children to peanut exposure by increasing the peanut dose that triggers allergic symptoms. As stated in an accompanying editorial piece, these data are seen as “very good news” for toddlers with peanut allergy, as there are currently no approved treatment options for peanut-allergic children under the age of 4 years. In November 2023, the Company announced the interim analyses from the first year of the open-label extension of EPITOPE, called EPOPEX, which showed improvement between months 12 and 24 of treatment with Viaskin Peanut across all efficacy parameters. These data were presented at the annual American College of Allergy, Asthma and Immunology (ACAAI) in November 2023. On November 9, 2023, the Company submitted the protocol for its COMFORT Toddlers supplemental safety study in 1 – 3 years-old to FDA. The Company received comments and queries to the protocol from the FDA on March 11, 2024. On October 22, 2024, the Company announced positive regulatory updates for the Viaskin Peanut patch in the United States and Europe. DBV has agreed to guidance provided by the FDA on a potential pathway under the Accelerated Approval Program for the Viaskin Peanut patch in toddlers ages 1 – 3 years-old. FDA guidance for Accelerated Approval include three qualifying criteria: 1) that the product candidate treats a serious condition, 2) that the product candidate generally provides a meaningful advantage over available therapies, and 3) that the product candidate demonstrates an effect on an intermediate clinical endpoint that is reasonably likely to predict clinical benefit. FDA confirmed that the Company has met criterion 1 and 2. Regarding criterion 3, FDA has provided guidance and suggestion regarding the intermediate clinical endpoint, which the Company has agreed to in informal discussions with the FDA. The Company intends to formalize the Accelerated Approval guidance provided by FDA via submission of a meeting request to confirm the general elements of the two study components: the COMFORT Toddlers safety study, to be completed before BLA submission, and the confirmatory effectiveness study, including the third Accelerated Approval criterion regarding the intermediate clinical endpoint. The Company expects that the confirmatory study will be initiated by the time of BLA submission and would run in parallel to commercialization in the United States, if Viaskin Peanut is approved. The Company announced further that it has aligned with FDA on a wear time collection methodology in COMFORT Toddlers that provides a practical approach for subjects and families, is intended to generate sufficient data to support a BLA submission, and places wear time into an acceptable clinical hierarchy relative to other study endpoints. DBV has initiated study start-up activities and plans to screen the first subject in the second quarter of 2025. The company anticipates enrolling approximately 300 – 350 subjects on active treatment into the safety study, which would bring the total Viaskin Peanut patch safety database in toddlers to approximately 600 subjects, consistent with prior FDA guidance. With this path forward, the BLA submission for Viaskin Peanut patch in 1 – 3 years-old under the Accelerated Approval program is anticipated to be supported by: i. Positive efficacy and safety data from DBV’s previously completed EPITOPE Phase 3 Study; and ii. Additional safety data generated in COMFORT Toddlers supplemental safety study to be initiated in the second quarter of 2025. Viaskin Peanut for Children ages 4-7 On September 7, 2022, the Company announced the initiation of VITESSE, a Phase 3 pivotal study of the mVP in children ages 4-7 years with peanut allergy. The Company defined initiation as the submission of the trial protocol to selected study sites for subsequent Institutional Review Board (IRB)/Ethics Committee (EC) approval. On September 21, 2022, the Company announced it received from the FDA a partial clinical hold letter related to certain design elements of VITESSE. The Company announced on December 23, 2022 that the FDA lifted the partial clinical hold. The FDA confirmed the Company satisfactorily addressed all clinical hold issues and the VITESSE phase 3 clinical study could proceed with the revised trial protocol. On March 7, 2023, the Company announced that the first patient was screened in the VITESSE trial. The Company announced on September 23, 2024 that subject screening was completed in the third quarter of 2024 and that topline results are anticipated by fourth quarter of 2025. In July 2023, the Company received Type C Meeting Written Responses from the FDA regarding key study design elements for COMFORT Children. Subsequently, in October 2023, the Company received feedback from the FDA addressing the remaining protocol design elements for COMFORT Children. This feedback included language simplification for how Viaskin should be used. The Company submitted the protocol for its COMFORT Children supplemental safety study in 4--7-years-old to the FDA on November 29, 2023 and, as of the date of this filing, the Company is still awaiting feedback from FDA. The Company anticipates that the COMFORT Children safety study will enroll peanut allergic children ages 4 – 7-years and anticipates the safety study will support the efficacy results from the ongoing VITESSE phase 3 pivotal study. Furthermore, the Company anticipates that the key inclusion criteria for the COMFORT Children study will be based on a physician-diagnosed peanut allergy, peanut-specific IgE and a Skin Prick Test (with no requirement for a DBPCFC). COMFORT Children is anticipated to be initiated towards the end of VITESSE enrollment. ADS Ratio Change & NASDAQ listing market change On May 31, 2024, the Company announced plans to change the ratio of its American Depositary Shares (“ADSs”) to its ordinary shares (the “ADS Ratio”), nominal value €0.10 (ten cents) per share, from the current ADS Ratio of one (1) ADS to one-half (1/2) of one (1) ordinary share to a new ADS Ratio of one (1) ADS to one (1) ordinary share (the “ADS Ratio Change”). The ADS Ratio Change was effective on June 7, 2024 (the “Effective Date”). For the Company’s ADS holders, the change in the ADS Ratio had the same effect as a one-for-two reverse ADS split and was intended to enable the Company to regain compliance with the Nasdaq minimum bid price requirement. On the Effective Date, registered holders of company ADSs held in certificated form were required on a mandatory basis to surrender their certificated ADSs to the depositary bank for cancellation and received one (1) new ADS in exchange for every two existing ADSs surrendered. The exchange of every two existing ADSs then-held for one (1) new ADS occurred automatically, at the Effective Date, with the then-held ADSs being cancelled and new ADSs being issued by the depositary bank. DBV’s ADSs continued to be traded on the Nasdaq Stock Market under the ticker symbol “DBVT”. No fractional new ADSs were issued in connection with the ADS Ratio Change. Instead, fractional entitlements to new ADSs were aggregated and sold by the depositary bank and the net cash proceeds from the sale of the fractional ADS entitlements (after deduction of fees, taxes and expenses) were distributed to the applicable ADS holders by the depositary bank. The ADS Ratio Change had no impact on DBV’s underlying ordinary shares, and no ordinary shares were issued or cancelled in connection with the ADS Ratio Change. In addition, to obtain an additional 180 days period to regain compliance with the NASDAQ minimum bid price requirement, the Company applied to transfer its securities from the NASDAQ Global Select Market to the NASDAQ Capital Market (the “NCM”). On June 18, 2024, the Company was notified by the Listing Qualifications Department that NASDAQ granted the Company’s request to transfer the listing of its ADSs from the NASDAQ Global Select Market tier to the NCM tier, and that NASDAQ granted the Company’s request for a second 180-day period, or until December 16, 2024, to regain compliance with the $1.00 bid price requirement. The Company’s ADSs were transferred to the NCM at the opening of business on June 20, 2024. Legal Proceedings From time to time, the Company may become subject to various legal proceedings and claims that arise in the ordinary course of our business activities. The Company is not currently subject to any material legal proceedings.

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