8-K
false 0001374690 0001374690 2021-08-12 2021-08-12

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

FORM 8-K

 

 

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 12, 2021

 

 

Larimar Therapeutics, Inc.

(Exact name of registrant as specified in its charter)

 

 

 

Delaware   001-36510   20-3857670

(State or other jurisdiction

of incorporation)

 

(Commission

File Number)

 

(I.R.S. Employer

Identification No.)

 

Three Bala Plaza East, Suite 506

Bala Cynwyd, Pennsylvania

  19004
(Address of principal executive offices)   (Zip Code)

Registrant’s telephone number, including area code: (844) 511-9056

(Former name or former address, if changed since last report.)

 

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class

 

Trading

Symbol(s)

 

Name of each exchange

on which registered

Common Stock, par value $0.001 per share   LRMR   Nasdaq Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

 

 


Item 2.02

Results of Operations and Financial Condition.

On August 12, 2021, Larimar Therapeutics, Inc. (the “Company”) announced its financial results and operational highlights for the second quarter ended June 30, 2021. A copy of the press release is being furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information in this Current Report on Form 8-K and Exhibit 99.1 attached hereto is intended to be furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

 

Item 8.01

Other Events.

On August 12, 2021, the Company posted on its website an updated slide presentation, which is attached as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated herein by reference. Representatives of the Company will use the presentation in various meetings with investors, analysts and other parties from time to time.

 

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits

Below is a list of exhibits included with this Current Report on Form 8-K.

 

Exhibit No.

  

Document

99.1    Press Release issued by Larimar Therapeutics, Inc. on August 12, 2021*
99.2    Larimar Therapeutics, Inc. Corporate Presentation, dated August 12, 2021
104    Cover Page Interactive Data File (embedded within the Inline XBRL document)

 

*

Furnished herewith


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

Larimar Therapeutics, Inc.
By:  

/s/ Carole S. Ben-Maimon, M.D.

Name:   Carole S. Ben-Maimon, M.D.
Title:   President and Chief Executive Officer

Date: August 12, 2021

EX-99.1

Exhibit 99.1

 

LOGO

Larimar Therapeutics Reports Second Quarter 2021 Operating and Financial Results

- Reported positive proof-of-concept and dose response data from Phase 1 program evaluating CTI-1601 in patients with Friedreich’s ataxia (FA)

- Subcutaneous injections of CTI-1601 at doses of 50 mg or 100 mg resulted in frataxin levels in buccal cells of FA patients that were at or in excess of those that would be expected in phenotypically normal heterozygous carriers

- Phase 1 safety data indicate that repeated subcutaneous injections of CTI-1601 were generally well tolerated at doses up to 100 mg administered daily for 13 days

- Completed dosing in July in 180-day non-human primate toxicology study designed to support extended dosing of CTI-1601

- Cash and investments of $70.6 million as of June 30, 2021

- Closed $20 million equity financing on July 2, 2021

Bala Cynwyd, PA, August 12, 2021 – Larimar Therapeutics, Inc. (“Larimar”) (Nasdaq: LRMR), a clinical-stage biotechnology company focused on developing treatments for complex rare diseases, today reported its second quarter and year to date June 30, 2021 operating and financial results.

“We finished the second quarter in a strong financial position and with a compelling clinical data set that demonstrates proof-of-concept for CTI-1601, which to our knowledge is the only clinical-stage candidate designed to address the root cause of Friedreich’s ataxia,” said Carole Ben-Maimon, MD, President and Chief Executive Officer of Larimar. “These positive Phase 1 data along with non-clinical pharmacology data demonstrate proof-of-concept, and CTI-1601’s differentiated mechanism of action helped us to earn a PRIME designation from the European Medicines Agency, providing us with valuable regulatory benefits and important external validation. Looking forward, we continue to collect and analyze data from our 180-day non-human primate toxicology study and remain confident that there is a path forward through the resolution of the CTI-1601 clinical hold and towards the initiation of our Jive open-label extension and pediatric multiple ascending dose trials.”

Second Quarter 2021 Highlights

 

   

In May 2021, Larimar reported positive topline data from its Phase 1 Friedreich’s ataxia (FA) program after completing dosing of the single ascending dose (SAD) trial in December, 2020 and of the multiple ascending dose (MAD) trial in March, 2021. Data from these trials demonstrate proof-of-concept by showing that daily subcutaneous injections of CTI-1601 for up to 13 days resulted in dose-dependent increases in frataxin levels from baseline compared to placebo in all evaluated tissues (buccal cells, skin, and platelets). Frataxin levels achieved in peripheral tissues (buccal cells) following daily 50 mg and 100 mg subcutaneous injections of CTI-1601 were at or in excess of frataxin levels that would be expected in phenotypically normal heterozygous carriers. There were no serious adverse events (SAEs), associated with either the MAD or SAD trials.


   

In May 2021, Larimar received European Medicines Agency (EMA) Priority Medicines (PRIME) designation for CTI-1601 in FA. Through PRIME, the EMA offers early and proactive support to medicine developers to optimize the generation of robust data on a medicine’s benefits and risks and enables accelerated assessment of medicines applications so that these medicines can reach patients earlier. Larimar’s PRIME designation was based on pre-clinical data as well as tolerability data from the CTI-1601 Phase 1 program in patients with FA.

 

   

On May 25, 2021 the United States Food and Drug Administration (FDA) placed a clinical hold on the CTI-1601 clinical program following the Company’s notification to the FDA of mortalities which occurred at the highest dose levels in an ongoing 180-day non-human primate (NHP) toxicology study, which is designed to support extended dosing of patients with CTI-1601. In the clinical hold letter, the FDA stated that it needs a full study report from the ongoing NHP study and Larimar may not initiate additional clinical trials until the company has submitted the report and received notification from the FDA that additional clinical trials may commence. At the time of the notice, the Company had no interventional clinical trials with patients enrolled or enrolling.

 

   

In July 2021, the Company completed dosing in the 180-day NHP toxicology study discussed above. The Company is currently collecting and analyzing data from the study. While there is no way to predict the FDA’s response or whether they will require additional data or testing before lifting the clinical hold on CTI-1601 in full or in part, the Company expects to initiate its Jive open-label extension and pediatric MAD trials in the first half of next year.

Recent Developments

Under an Equity Distribution Agreement with an investment bank, the Company may sell up to an aggregate of $50,000,000 shares of common stock from time to time in connection with an “at the market” program. In July 2021, the Company sold an additional 2,342,720 shares under the agreement for net proceeds of $19.9 million. The Company can raise an additional $29.2 million under this program.

Anticipated Milestones

 

   

Obtain FDA clearance to initiate future clinical trials

 

   

Initiate a non-interventional healthy volunteer study this year to generate data for comparison to FA patients

 

   

Initiate Jive open-label extension clinical trial in the first half of 2022

 

   

Initiate MAD trial in patients under 18 years of age in the first half of 2022

Second Quarter 2021 Financial Results

As of June 30, 2021, the Company had cash and cash equivalents totaling $70.6 million.

The Company reported a net loss for the second quarter of 2021 of $12.6 million, or $0.79 per share, compared to a net loss of $11.3 million, or $1.21 per share, for the second quarter of 2020.


Research and development expenses for the second quarter of 2021 were $9.1 million compared to $8.9 million for the second quarter of 2020. The increase in research and development expenses compared to the prior year period was primarily driven by higher non-clinical costs associated with assay development and toxicology studies, an increase in clinical trial costs, an increase in personnel related costs due to headcount additions in our research and development functions, an increase in stock compensation expense associated with stock option grants made in the second half of 2020 and thus far in 2021, partially offset by a decrease of clinical supply manufacturing costs.

General and administrative expenses for the second quarter of 2021 were $3.4 million, compared to $2.5 million for the second quarter of 2020. The increase in general and administrative expenses as compared to the prior year period was primarily driven by an increase in personnel related costs due to increased headcount, an increase in stock-based compensation associated with stock option grants made in the second half of 2020 and thus far in 2021, an increase in professional fees primarily associated with insurance costs, legal and consulting fees as a result of operating as a public company.

For the first half of 2021, the Company reported a net loss of $24.7 million, or $1.54 per share, compared to a net loss of $18.1 million, or $2.33 per share for the same period in 2020.

Research and development expenses for the first half of 2021 were $18.1 million compared to $13.9 million for the first half of 2020. The increase in research and development expenses compared to the prior year period was primarily driven by an increase in clinical trial costs, higher non-clinical costs associated with the assay and toxicology studies, an increase in personnel related costs due to headcount additions in our research and development functions, an increase in stock compensation expense associated with stock option grants made in the second half of 2020 and thus far in 2021, partially offset by a decrease of clinical supply manufacturing costs.

General and administrative expenses for the first half of 2021 were $6.6 million, compared to $4.2 million for the first half of 2020. The increase in general and administrative expenses as compared to the prior year period was primarily driven by an increase in personnel related costs due to increased headcount, an increase in stock-based compensation associated with stock option grants made in the second half of 2020 and thus far in 2021, an increase in professional fees primarily associated with insurance costs, recruiting expenses, legal and consulting fees as a result of operating as a public company, partially offset by a decrease in accounting and audit costs related to additional years under audit in the first quarter 2020.

About Larimar Therapeutics

Larimar Therapeutics, Inc. (Nasdaq: LRMR) is a clinical-stage biotechnology company focused on developing treatments for complex rare diseases. Larimar’s lead compound, CTI-1601, is currently being evaluated in a Phase 1 clinical program in the U.S. as a potential treatment for Friedreich’s ataxia. Larimar also plans to use its intracellular delivery platform to design other fusion proteins to target additional rare diseases characterized by deficiencies in intracellular bioactive compounds. For more information, please visit: https://larimartx.com.

Forward-Looking Statements

This press release contains forward-looking statements that are based on Larimar’s management’s beliefs and assumptions and on information currently available to management. All statements contained in this release other than statements of historical fact are forward-looking statements, including but not limited to statements regarding Larimar’s expectations regarding its ability to resolve the clinical hold imposed by the FDA related to CTI-1601, Larimar’s ability to develop and commercialize CTI-1601 and other planned product candidates, Larimar’s planned


research and development efforts, and other matters regarding Larimar’s business strategies, use of capital, results of operations and financial position, and plans and objectives for future operations.

In some cases, you can identify forward-looking statements by the words “may,” “will,” “could,” “would,” “should,” “expect,” “intend,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “ongoing” or the negative of these terms or other comparable terminology, although not all forward-looking statements contain these words. These statements involve risks, uncertainties and other factors that may cause actual results, performance, or achievements to be materially different from the information expressed or implied by these forward-looking statements. These risks, uncertainties and other factors include, among others, Larimar’s ability to successfully engage with the FDA and satisfactorily respond to requests from the FDA for further information and data regarding CTI-1601, the timing and outcome of Larimar’s planned interactions with the FDA concerning the clinical hold on CTI-1601, the success, cost and timing of Larimar’s product development activities, nonclinical studies and clinical trials, including CTI-1601 clinical milestones; that clinical trial results may differ from final clinical trial results, that earlier non-clinical and clinical data and testing of CTI-1601 may not be predictive of the results or success of clinical trials, and assessments; the ongoing impact of the COVID-19 pandemic on Larimar’s future clinical trials, manufacturing, regulatory and nonclinical study timelines, ability to raise additional capital and general economic conditions; Larimar’s ability to optimize and scale CTI-1601’s manufacturing process; Larimar’s ability to obtain regulatory approval for CTI-1601 and future product candidates; Larimar’s ability to develop sales and marketing capabilities, whether alone or with potential future collaborators, and to successfully commercialize any approved product candidates; Larimar’s ability to raise the necessary capital to conduct its product development activities; and other risks described in the filings made by Larimar with the Securities and Exchange Commission (SEC), including but not limited to Larimar’s periodic reports, including the annual report on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, filed with or furnished to the SEC and available at www.sec.gov. These forward-looking statements are based on a combination of facts and factors currently known by Larimar and its projections of the future, about which it cannot be certain. As a result, the forward-looking statements may not prove to be accurate. The forward-looking statements in this press release represent views as of the date hereof. Larimar undertakes no obligation to update any forward-looking statements for any reason, except as required by law.

 

Investor Contact:    Company Contact:
Joyce Allaire    Michael Celano
LifeSci Advisors    Chief Financial Officer
jallaire@lifesciadvisors.com    mcelano@larimartx.com
(212) 915-2569    (484) 414-2715


Larimar Therapeutics, Inc.

Consolidated Balance Sheet

(Unaudited)

 

     June 30,
2021
    December 31,
2020
 

Assets

    

Current assets:

    

Cash and cash equivalents

   $ 70,630     $ 68,148  

Marketable debt securities

     —         24,490  

Prepaid expenses and other current assets

     3,406       5,314  
  

 

 

   

 

 

 

Total current assets

     74,036       97,952  

Property and equipment, net

     1,211       1,040  

Operating lease right-of-use assets

     3,673       3,936  

Restricted cash

     1,339       1,339  

Other assets

     672       419  
  

 

 

   

 

 

 

Total assets

   $ 80,931     $ 104,686  
  

 

 

   

 

 

 

Liabilities and Stockholders’ Equity

    

Current liabilities:

    

Accounts payable

   $ 1,463     $ 2,634  

Accrued expenses

     5,675       5,843  

Operating lease liabilities, current

     553       515  
  

 

 

   

 

 

 

Total current liabilities

     7,691       8,992  

Operating lease liabilities

     5,715       6,002  
  

 

 

   

 

 

 

Total liabilities

     13,406       14,994  
  

 

 

   

 

 

 

Commitments and contingencies

    

Stockholders’ equity:

    

Preferred stock; $0.001 par value per share; 5,000,000 shares authorized as of December 31, 2020 and December 31, 2019; no shares issued and outstanding as of December 31, 2020 and December 31, 2019

     —         —    

Common stock, $0.001 par value per share; 115,000,000 shares authorized as of June 30, 2021 and December 31, 2020; 15,367,730 and 6,091,250 shares issued and outstanding as of June 30, 2021 and December 31, 2020, respectively

     15       15  

Additional paid-in capital

     157,820       155,290  

Accumulated deficit

     (90,311     (65,614

Accumulated other comprehensive gain

     1       1  
  

 

 

   

 

 

 

Total stockholders’ equity

     67,525       89,692  
  

 

 

   

 

 

 

Total liabilities and stockholders’ equity

   $ 80,931     $ 104,686  
  

 

 

   

 

 

 


LOGO

Larimar Therapeutics, Inc.

Consolidated Statements of Operations

(In thousands, except share and per share data)

(Unaudited)

 

     Three Months Ended June 30,     Six Months Ended June 30,  
     2021     2020     2021     2020  

Operating expenses:

        

Research and development

   $ 9,102     $ 8,907     $ 18,076     $ 13,914  

General and administrative

     3,441       2,492       6,573       4,159  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total operating expenses

     12,543       11,399       24,649       18,073  
  

 

 

   

 

 

   

 

 

   

 

 

 

Loss from operations

     (12,543     (11,399     (24,649     (18,073

Other income, net

     (66     69       (48     69  
  

 

 

   

 

 

   

 

 

   

 

 

 

Net loss

   $ (12,609   $ (11,330   $ (24,697   $ (18,004
  

 

 

   

 

 

   

 

 

   

 

 

 

Net loss per share, basic and diluted

   $ (0.79   $ (1.21   $ (1.54   $ (2.33
  

 

 

   

 

 

   

 

 

   

 

 

 

Weighted average common shares outstanding, basic and diluted

     15,996,133       9,381,412       15,996,133       7,736,331  
  

 

 

   

 

 

   

 

 

   

 

 

 
EX-99.2

Slide 1

August 2021 Larimar Therapeutics Corporate Presentation Exhibit 99.2


Slide 2

Forward Looking Statements This presentation contains forward-looking statements that are based on the beliefs and assumptions of Larimar Therapeutics, Inc. (the “Company”) and on information currently available to management. All statements contained in this presentation other than statements of historical fact are forward-looking statements, including but not limited to statements regarding the expectations and assumptions regarding the future of the Company’s business, including its ability to resolve the clinical hold by the FDA related to CTI-1601, the Company’s ability to develop and commercialize CTI-1601 and other planned product candidates, the Company’s planned research and development efforts, and other matters regarding the Company’s business strategies, use of capital, results of operations and financial position, and plans and objectives for future operations. In some cases, you can identify forward-looking statements by the words “may,” “will,” “could,” “would,” “should,” “expect,” “intend,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “ongoing” or the negative of these terms or other comparable terminology, although not all forward-looking statements contain these words. These statements involve risks, uncertainties and other factors that may cause actual results, performance or achievements to be materially different from the information expressed or implied by these forward-looking statements. These risks, uncertainties and other factors include, among others, the Company’s ability to successfully engage with the FDA and satisfactorily respond to requests from the FDA for further information and data regarding CTI-1601, the timing and outcome of Larimar’s planned interactions with the FDA, including the clinical hold on CTI-1601, the success, cost and timing of the Company’s product development activities, non-clinical studies and clinical trials, including CTI-1601 clinical milestones; that clinical trial results may differ from final clinical trial results, that earlier non-clinical and clinical data and testing of CTI-1601 may not be predictive of the results or success of clinical trials, and that clinical trial data are subject to differing interpretations and assessments; the ongoing impact of the COVID-19 pandemic on the Company’s clinical trials, manufacturing, regulatory and nonclinical study timelines, ability to raise additional capital and general economic conditions; the Company’s ability to optimize and scale CTI-1601’s manufacturing process; the Company’s ability to obtain regulatory approval for CTI-1601 and future product candidates; the Company’s ability to develop sales and marketing capabilities, whether alone or with potential future collaborators, and to successfully commercialize any approved product candidates; the Company’s ability to raise the necessary capital to conduct its product development activities; and other risks described in the filings made by the Company with the Securities and Exchange Commission (SEC), including but not limited to the Company’s periodic reports, including the annual report on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, filed with or furnished to the SEC and available at www.sec.gov. These forward-looking statements are based on a combination of facts and factors currently known by the Company and its projections of the future, about which it cannot be certain. As a result, the forward-looking statements may not prove to be accurate. These forward-looking statements are based on information currently available to us, and we assume no obligation to update any forward-looking statements, except as required by law.


Slide 3

Investment Highlights Clinical-stage biotechnology company with a novel protein replacement therapy platform Focused on addressing unmet needs in Friedreich's ataxia (FA) and other complex rare diseases based on a platform technology backed by a strong intellectual property portfolio Lead candidate: CTI-1601, a recombinant fusion protein designed to deliver frataxin to mitochondria Has Orphan Drug (US & EU), Rare Pediatric Disease (US), Fast Track (US) and PRIME (EU) designations for FA Double-blind, placebo-controlled Phase 1 proof-of-concept trials in FA patients complete Data show dose dependent increases in FXN levels from baseline compared to placebo in all evaluated tissues with daily dosing and that CTI-1601 was generally well tolerated when dosed for up to 13 days -Clinical hold pending data from an ongoing 180-day NHP study (dosing completed in July 2021) as it relates to initiating additional clinical studies with CTI-1601 Strong balance sheet ~$70.6 million in cash as of June 30, 2021; Also, raised $19.9 million in net proceeds in July ATM transactions (Projected runway through the end of 2022) - Series A investment by Deerfield in Nov. 2016; went public through a reverse merger/PIPE in May 2020 Shareholder base includes high-quality institutional investors FXN: Frataxin


Slide 4

CTI-1601 is Designed to Deliver Additional Frataxin (FXN) The maintenance of the cleavage site allows the CPP and MTS to be removed by mitochondrial processing peptidase to produce mature human FXN in the mitochondria STRUCTURE OF ENDOGENOUS FXN STRUCTURE OF CTI-1601 Cleavage by mitochondrial processing peptidase (MPP) at this site produces mature human FXN in mitochondria Mitochondrial Targeting Sequence (MTS) Mature Human FXN Cleavage by mitochondrial processing peptidase (MPP) at this site produces mature human FXN in mitochondria Mature Human FXN Cell Penetrating Peptide (CPP) Mitochondrial Targeting Sequence (MTS) CTI-1601 Maintains the Cleavage Site Between the MTS and Mature Human FXN


Slide 5

2005 2010 2020 2025 2030 2035 2040 2045 2000 2015 TAT-MTS-FXN Composition of Matter (broad coverage of CTI-1601) US 9,045,552 (Exclusive license from Wake Forest) Expiration October 2024 Methods of treating FA using TAT-MTS-FXN and delivering TAT-MTS-FXN to mitochondria (broad coverage of CTI-1601) US 8,735,341 (Exclusive license from Wake Forest) Expiration December 2025 (including Patent Term Adjustment) Will be filed in foreign jurisdictions accordingly *Additional pending applications for platform disease targets Platform Technology*: Molecules for Protein Delivery US/PCT applications pending Est. Expiration March 2041 CTI-1601 Composition of Matter and Methods of Treatment (specific coverage of CTI-1601) US/PCT applications pending (Exclusive license from Indiana University) Est. Expiration July 2040 Will be filed in foreign jurisdictions accordingly CTI-1601 Patents / Applications Platform Technology is Supported by a Strong IP Portfolio Pending CTI-1601 patent application, if issued, extends IP into 2040 Additional CTI-1601 IP protection CTI-1601 pending applications cover key biomarkers, analytical tools and quantification methods CTI-1601 is eligible for 12 years of market exclusivity upon approval in the US (independent of patents) and at least 10 years of market exclusivity upon approval in Europe (independent of patents) Pending Granted Platform Applications


Slide 6

Caused by genetic defect resulting in low levels of frataxin Patients with FA only produce ~20-40% of normal frataxin levels depending on the tissue, sampling technique, and assay considered1 Affects ~5,000 patients in the U.S. & ~20,000 patients in the EU >70% of patients present before age 14 Initial symptoms may include unsteady posture, frequent falling and progressive difficulty in walking By the time symptoms occur, heart damage may have already occurred Progressive disease: Symptoms worsen and patients are eventually confined to a wheelchair with speech becoming hesitant and jerky (often referred to as “scanning of speech”) Life expectancy of 30-50 years Early death usually caused by heart disease No approved therapies available Current treatment options are limited to symptom management Friedreich’s Ataxia (FA) Rare and Progressive Disease 1. E.C. Deutsch et al. Molecular Genetics and Metabolism 101 (2010) 238–245


Slide 6


Slide 8

CTI-1601 appears to be generally well tolerated at doses up to 100 mg administered daily for 13 days Executive Summary of Phase 1 POC Data Daily dosing of CTI-1601 resulted in dose-dependent increases in FXN levels from baseline compared to placebo controls in all evaluated tissues Pharmacokinetic analyses support evaluating a once-daily dosing regimen for CTI-1601 Daily subcutaneous (SC) administration of 50mg and 100mg doses of CTI-1601 resulted in FXN levels in buccal cells that are at, or in excess of, those we would expect to see in phenotypically normal heterozygous carriers (who have FXN levels of ~50% of unaffected persons) Pharmacodynamics Safety Pharmacokinetics Conclusion POC: Proof-of-concept


Slide 9

CTI-1601: Phase 1 Clinical Program in Patients with FA Phase 1 Development Plan Two double-blind, placebo-controlled dosing trials in patients with FA Patient dosing began December 2019 Safety Review Committee assessed all blinded data between each cohort to ensure patient safety Number of subjects: 28 Dose levels: 25 mg, 50 mg, 75 mg and 100 mg (subcutaneous administration) Treatment Duration: 1 day 1º Endpoint: Safety and tolerability 2º Endpoints: PK; PD; FXN levels; multiple exploratory Status: Complete with analysis ongoing Single Ascending Dose (SAD) Number of Subjects: 27 Dose Range: 25 mg, 50 mg, 100 mg (subcutaneous administration) Treatment Regimen: Multiple increasing doses administered subcutaneously over 13 days 1º Endpoint: Safety and tolerability 2º Endpoints: PK; PD; FXN levels (buccal cells, platelets, optional skin biopsies); multiple exploratory Status: Complete with analysis ongoing Multiple Ascending Dose (MAD) Eligible patients from SAD trial could enroll in MAD trial Program consisted of double-blind, placebo controlled single- and multiple-ascending dose trials


Slide 10

MAD Trial Patient Enrollment MAD Trial Patient Enrollment (n=27) Parameter Statistic Overall Participated in SAD trial? Yes n (%) 16 (59%) No n (%) 11 (41%) Cohort 1 (25 mg) Active vs. Placebo Active n (%) 6 (75%) Placebo n (%) 2 (25%) Cohort 2 (50 mg) Active vs. Placebo Active n (%) 7 (78%) Placebo n (%) 2 (22%) Cohort 3 (100 mg) Active vs. Placebo Active n (%) 7 (70%) Placebo n (%) 3 (30%) 16 out of 28 patients who participated in the SAD trial enrolled in the MAD trial


Slide 11

Multiple Ascending Dose Study Design Treatment Schedules for Each Cohort 13-day Treatment Period Cohort 2 (50 mg; n = 9) 2 3 4 5 1 6 7 8 9 10 11 12 13 14 = Administration of CTI-1601 or placebo = No Administration 13-day Treatment Period Cohort 1 (25 mg; n = 8) 2 3 4 5 1 6 7 8 9 10 11 12 13 14 = Administration of CTI-1601 or placebo = No Administration 13-day Treatment Period Cohort 3 (100 mg n = 10) 2 3 4 5 1 6 7 8 9 10 11 12 13 14 = Administration of CTI-1601 or placebo = No Administration FXN Level Sampling Days Presented for Each Cohort Cohort 1 Sampling Days Buccal Cells Baseline, Day 4, Day 13 Skin Baseline, Day 13 Platelets Baseline, Day 4, Day 13 Cohort 2 Sampling Days Buccal Cells Baseline, Day 7, Day 13 Skin Baseline, Day 13 Platelets Baseline, Day 7, Day 13 Cohort 3 Sampling Days Buccal Cells Baseline, Day 7, Day 13 Skin Baseline, Day 13 Platelets Baseline, Day 7, Day 13


Slide 12

Dose Dependent Increases in FXN Levels Observed in Buccal Cells Daily SC injections of 100 mg CTI-1601 resulted in an ~2.5 fold increase in FXN levels from baseline FXN* Levels By Dose Group (Buccal Cells) FXN* Change from Baseline By Dose Group (Buccal Cells) Additional FXN (Change from Baseline) (pg/μg total protein) Day 4/7 Day 13 FXN Concentration (pg/μg total protein) Baseline Day 4/7 Day 13 *FXN levels measured via detection of peptide derived from mature FXN; Data represent median and 25th and 75th percentiles; FXN levels from baseline, Day 4, & Day 13 measurements are shown for data derived from the 25 mg cohort; FXN levels from baseline, Day 7 & Day 13 measurements are shown for data derived from the 50 & 100 mg cohorts; Sample collection days varied in each cohort per the trial protocol


Slide 13

Dose Dependent Increases in FXN Levels Observed in Skin Daily SC injections of 100 mg CTI-1601 resulted in an ~3 fold increase in FXN levels from baseline FXN* Levels By Dose Group (Skin Biopsies) FXN* Change from Baseline By Dose Group (Skin Biopsies) Day 13 Baseline Day 13 *FXN levels measured via detection of peptide derived from mature FXN; Data represent median and 25th and 75th percentiles Additional FXN (Change from Baseline) (pg/μg total protein) FXN Concentration (pg/μg total protein)


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Dose Dependent Increases in FXN Levels Observed in Platelets with Daily Dosing Daily SC injections of CTI-1601 resulted in increases in FXN levels from baseline compared to placebo FXN* Levels By Dose Group (Platelets) FXN* Change from Baseline By Dose Group (Platelets) Day 4/7 Day 13 Baseline Day 13 Day 4/7 *FXN levels measured via detection of peptide derived from mature FXN; Data represent median and 25th and 75th percentiles; FXN levels from baseline, Day 4, & Day 13 measurements are shown for data derived from the 25 mg cohort; FXN levels from baseline, Day 7 & Day 13 measurements are shown for data derived from the 50 & 100 mg cohorts; Sample collection days varied in each cohort per the trial protocol Additional FXN (Change from Baseline) (pg/μg total protein) FXN Concentration (pg/μg total protein)


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Increases in FXN Correlated with Increasing CTI-1601 Dose *FXN levels measured via detection of peptide derived from mature FXN; #Two patients in the 100 mg cohort declined skin biopsies Day 13 observation excluded from one subject in 25 mg group that did not get a Day 13 dose. Buccal Cells Day 13 FXN* Change from Baseline Skin Biopsies# Day 13 FXN* Change from Baseline Platelets Day 13 FXN* Change from Baseline Day 13 FXN CBL (pg/μg total protein) Subjects Day 13 FXN CBL (pg/μg total protein) Subjects Day 13 FXN CBL (pg/μg total protein) Subjects Individual patient data further supports the dose-dependent effects of CTI-1601 in all tissues studied


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Data Compare Favorably to FXN Levels Expected in Heterozygous Carriers Achieved median FXN levels that were >60% of the median FXN levels observed in healthy controls FXN* Levels By Dose Group (Buccal Cells) FXN Level (pg/μg total protein) Baseline Day 4/7 Day 13 *FXN levels measured via detection of peptide derived from mature FXN; #Data on file; Data represent median and 25th and 75th percentiles ; FXN levels from baseline, Day 4, & Day 13 measurements are shown for data derived from the 25 mg cohort; FXN levels from baseline, Day 7 & Day 13 measurements are shown for data derived from the 50 & 100 mg cohorts; Sample collection days varied in each cohort per the trial protocol. 1. Lazaropoulos et al. Ann Clin Transl Neurol. 2015 Aug; 2(8): 831–842; 2. E.C. Deutsch et al. Molecular Genetics and Metabolism 101 (2010) 238–245. Benchmarking Clinical Relevance FXN levels in buccal cells and blood have been shown to correlate with neurological function in FA patients1 Patients with FA only produce ~20-40% of normal frataxin levels depending on the tissue considered2 Heterozygous carriers who show no signs of disease have FXN levels of ~50% of unaffected healthy persons2 Comparison to Healthy Controls FXN levels were measured in buccal cells from 8 healthy controls using the same assay and sampling technique employed in the Phase 1 MAD trial With daily administration, patients in Cohorts 2 & 3 of the Phase 1 MAD trial achieved median buccal cell FXN levels that were >60% of the median FXN levels observed in healthy controls Data from additional healthy control buccal cells, skin, and platelets will be collected in a separate non-interventional study 60% of median healthy control FXN levels (n=8)#


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Summary of MAD trial safety data: Repeated doses (25 mg, 50 mg, and 100 mg) of CTI-1601 or placebo were administered subcutaneously. 27 patients were dosed in the trial. 26 patients completed the trial. 1 patient receiving CTI-1601 in Cohort 2 (50 mg) withdrew after experiencing mild/moderate symptoms (nausea and vomiting). No serious adverse events (SAEs), important medical events, or treatment-related severe adverse events The most common adverse events were mild and moderate injection site reactions (at least one injection site reaction was seen in 43% of placebo patients and in 100% of CTI-1601 patients) The number and severity of adverse events did not increase with increasing exposure to CTI-1601 Repeated SC injections of CTI-1601 appear to be generally well tolerated at doses up to 100 mg administered daily for 13 days


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Summary of PK Analyses CTI-1601 was quickly absorbed after subcutaneous administration Dose-proportional increases in exposure observed with increasing doses of CTI-1601 Mean half life of CTI-1601 in plasma was approximately 11 hours CTI-1601 appears to be at or close to steady state exposure after 13 days of dosing 100 mg once daily PK analyses support evaluating a once-daily dosing regimen for CTI-1601


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Phase 1 Topline Data Demonstrated POC for CTI-1601 in FA FXN levels in buccal cells & blood have been shown to correlate with disease severity in FA patients1 Dosing Frataxin Measurements Daily SC injections of CTI-1601 resulted in dose-dependent increases in FXN levels from baseline compared to placebo controls in all evaluated tissues With daily dosing (50mg and 100mg), achieved median FXN levels that were >60% of the median FXN levels observed in healthy controls Dosing Safety Data Repeated SC injections of CTI-1601 appear to be generally well tolerated at doses up to 100 mg administered daily for 13 days The most common AEs were mild and moderate injection site reactions No SAEs have been reported Dosing Pharmacokinetic Data CTI-1601 was quickly absorbed after subcutaneous administration Dose-proportional increases in exposure observed with increasing doses of CTI-1601 Data support evaluating a once-daily dosing regimen for CTI-1601 1. Lazaropoulos et al. Ann Clin Transl Neurol. 2015 Aug; 2(8): 831–842; POC: Proof-of-concept; OLE: Open label extension; AE: Adverse events


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CTI-1601 has a Significant Estimated Safety Margin Based on the 90-day Cynomolgus Monkey Study A 180-day cynomolgus monkey study is ongoing (dosing completed July 2021) to support extended dosing of patients (data pending). FDA to review data from the completed study in association with the CTI-1601 clinical program and clinical hold. Sprague Dawley Rat (28-day and 90-day studies) Cynomolgus Monkey (28-day and 90-day studies) Injection Site Observations Some injection sites showed edema and erythema; associated histologic changes were localized to the injection site Systemic Toxicity Analysis No significant clinical observations or clinical pathology results No significant systemic histopathological findings Injection Site Observations Some injection sites raised and firm; dose dependent histologic changes around the injection sites Systemic Toxicity Analysis No system toxicity observed in 28-day study Minimal to mild histopathological findings in some animals at the highest dose level in the 90-day study Based on Cmax and AUC from the 90-day study, Cohort 3 (100 mg) from the MAD trial has safety margins of 15.4 and 13.9, respectively*. *Safety margins are the ratio of no-observed-adverse-effect exposure levels and the geometric mean values from Day 13, Cohort 3 (100 mg) data in MAD trial


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Upcoming CTI-1601 Trials and Regulatory Interactions Future Planned Trials and Regulatory Interactions Include: Additional analyses from the Phase 1 program planned for presentation at a scientific meeting Global double-blind placebo-controlled pivotal trial (expected initiation as early as 1H 2023) Continued interactions with FDA regarding clinical trials and non-clinical studies, including discussions of resolution of clinical hold Jive open label extension (OLE) trial for eligible patients who participated in SAD or MAD trials (expected initiation 1H 2022) MAD trial in patients under 18 years of age (expected initiation 1H 2022). Participants eligible to screen for Jive OLE trial


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Dose Level: To be determined based on additional analysis of data from SAD and MAD trials Treatment Duration: Planned for 24 months with any necessary extensions Number of Subjects: Up to 50 Dose Regimen: Once-daily doses administered subcutaneously External Control Arm: Derived from Critical Path Institute Data 1º Endpoint: Safety and tolerability Key 2º Endpoints: Long-term PD; efficacy assessments Expected Initiation: 1H 2022 Expect to Initiate Two Additional Trials in 1H 2022 Patients eligible to enroll from Phase 1/Pediatric Patients from SAD, MAD, and pediatric trials are eligible to screen for the Jive open label extension trial SAD Trial Patients MAD Trial Patients OLE Trial Pediatric MAD Trial Initiate in 1H 2022


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Investment Highlights Clinical-stage biotechnology company with a novel protein replacement therapy platform Focused on addressing unmet needs in Friedreich's ataxia (FA) and other complex rare diseases based on a platform technology backed by a strong intellectual property portfolio Lead candidate: CTI-1601, a recombinant fusion protein designed to deliver frataxin to mitochondria Has Orphan Drug (US & EU), Rare Pediatric Disease (US), Fast Track (US) and PRIME (EU) designations for FA Double-blind, placebo-controlled Phase 1 proof-of-concept trials in FA patients complete Data show dose dependent increases in FXN levels from baseline compared to placebo in all evaluated tissues with daily dosing and that CTI-1601 was generally well tolerated when dosed for up to 13 days -Clinical hold pending data from an ongoing 180-day NHP study (dosing completed in July 2021) as it relates to initiating additional clinical studies with CTI-1601 Strong balance sheet ~$70.6 million in cash as of June 30, 2021; Also, raised $19.9 million in net proceeds in July ATM transactions (Projected runway through the end of 2022) Series A investment by Deerfield in Nov. 2016; went public through a reverse merger/PIPE in May 2020 Shareholder base includes high-quality institutional investors FXN: Frataxin


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THANK YOU Larimar Therapeutics Corporate Presentation


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Leadership Team Nancy Ruiz, MD, FACP, FIDSA Chief Medical Officer John Berman, CPA VP, Finance & Operations David Bettoun, PhD VP, Discovery & Non-clinical R&D Noreen Scherer VP, Clinical Operations Michael Celano Chief Financial Officer Keith E. Lynch, Jr. VP, Manufacturing and Supply Chain Francis Michael Conway VP, Controller Carole Ben-Maimon, MD Chief Executive Officer Mohamed Hamdani VP, Biostatistics & Data Management Jennifer Johansson, JD VP, Regulatory Affairs & Counsel


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Scientific Advisory Board Giovanni Manfredi, MD, PhD  Finbar and Marianne Kenny Professor in Clinical and Research Neurology at Weill Cornell Medicine.  Professor of Neuroscience at Weill Cornell Medicine. Russell Clayton, DO  (Chairman) Former Chief Medical Officer at Alcresta Therapeutics, a medical device company  Former Senior Vice President of Research and Development at Discovery Labs, a pharmaceutical and medical device company Co-founder of Chondrial Therapeutics, which became Larimar Therapeutics, Inc.  Professor of Pediatrics at Indiana University School of Medicine  Chief of the Division of Genetics and Metabolism, Director of the Rare Disease Institute, and Margaret O'Malley Chair of Genetic Medicine at Children’s National Hospital Executive Director of the Mitochondrial Medicine Frontier Program at The Children’s Hospital of Philadelphia (CHOP)    Professor in the Division of Human Genetics, Department of Pediatrics at University of Pennsylvania Perelman School of Medicine Mark Payne, MD  Marshall Summar, MD  Marni J. Falk, MD 


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MAD Trial Patient Demographics Parameter Statistic All placebo (n=7) 25 mg CTI-1601 (n=6) 50 mg CTI-1601 (n=7) 100 mg CTI-1601 (n=7) All CTI-1601 (n=20) Overall (n=27) Sex Male n (%) 5 (71.4) 3 ( 50.0) 4 ( 57.1) 3 ( 42.9) 10 ( 50.0) 15 (55.6) Female n (%) 2 (28.6) 3 ( 50.0) 3 ( 42.9) 4 ( 57.1) 10 ( 50.0) 12 (44.4) Age (years) Mean 25.7 39.7 34.7 28.0 33.9 31.7 SD 6.37 16.59 9.03 8.96 12.13 11.40 Median 23 37 36 24 34 28 Min, Max 20,36 21,65 19,47 20,44 19,65 19,65 Race White n (%) 6 ( 85.7) 6 (100.0) 6 ( 85.7) 6 ( 85.7) 18 ( 90.0) 24 (88.9) Asian n (%) 0 0 1 ( 14.3) 1 ( 14.3) 2 ( 10.0) 2 ( 7.4) American Indian n (%) 1 ( 14.3) 0 0 0 0 1 (3.7) Ethnicity Hispanic/Latino n (%) 2 (28.6) 0 0 0 0 2 (7.4) Not Hispanic/Latino n (%) 5 (71.4) 6 (100.0) 7 (100.0) 7 (100.0) 20 (100.0) 25 (92.6) SD: Standard deviation


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MAD Trial Patient Disease Characteristics Parameter Statistic All placebo (n=7) 25 mg CTI-1601 (n=6) 50 mg CTI-1601 (n=7) 100 mg CTI-1601 (n=7) All CTI-1601 (n=20) Overall (n=27) Age at Symptom Onset Mean 14.1 24.0 19.3 11.9 18.1 17.1 SD 5.34 14.48 6.21 6.72 10.37 9.39 Median 15.0 18.0 19.0 10.0 18.0 16.0 Min, Max 8,23 12,44 8,28 5,22 5,44 5,44 Age at Diagnosis Mean 18.3 31.5 26.4 15.9 24.3 22.7 SD 7.87 19.88 4.28 8.21 13.24 12.23 Median 20.0 25.5 28.0 13.0 27.0 21.0 Min, Max 9,32 14,64 17,30 5,27 5,64 5,64 Assistive Device Walker n (%) 0 2 (33.3) 3 (42.9) 0 5 (25.0) 5 (18.5) Wheelchair n (%) 4 (57.1) 3 (50.0) 1 (14.3) 6 (85.7) 10 (50.0) 14 (51.9) Other n (%) 1 (14.3) 0 1(14.3) 0 1 (5.0) 2 (7.4) None n (%) 2 (28.6) 1 (16.7) 2 (28.6) 1 (14.3) 4 (20.0) 6 (22.2) SD: Standard deviation


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CTI-1601: Positive Mouse Model Data Support Development Cardiac Knock Out Mouse Model Studies (MCK-Cre FXN KO Mouse) Proof-of-Concept Demonstrated In Mouse Models of FA Neurologic Knock Out Mouse Model Study (Pvalb-CRE FXN KO Mouse) Extended survival Prevented development of ataxic gait Demonstrated ability to deliver hFXN to mitochondria Showed that treated mice survive longer than untreated mice Increased in a dose dependent manner, succinate dehydrogenase (SDH) activity. SDH is an FXN dependent enzyme, whose activity is indicative of mitochondrial function. Demonstrated CNS penetration, as hFXN was present in brain, dorsal root ganglia & spinal cord Prevented left ventricle dilation and maintained function


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CTI-1601 Extends Survival in FXN-deficient KO Mice Median Survival of MCK-Cre FXN-KO Mice 166 days (CTI-1601) vs. 98 days (Vehicle) CTI-1601 was administered 10 mg/kg SC every other day Survival beyond vehicle mean (107.5 days) 87.5% (CTI-1601) vs. 33% (Vehicle) Demonstrates that CTI-1601 is capable of delivering sufficient amounts of FXN to mitochondria Days Percent Survival CTI-1601 rescues a severe disease phenotype in a well-characterized cardiac mouse model of FA P=0.0001 Initial Proof of Concept for FXN Replacement Therapy in Cardiac Mouse Model of FA


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Pvalb-Cre FXN-KO mouse Single dose level: 10 mg/kg CTI-1601 or vehicle given intraperitoneally three times per week hFXN replacement with CTI-1601 prevents the development of ataxic gait CTI-1601-treated mice survive longer than untreated mice Human frataxin present in brain, dorsal root ganglia and spinal cord demonstrating central nervous system penetration CTI-1601 Prevents The Development of Ataxic Gait in KO mice In-Vivo Efficacy Data in Neurologic KO Mouse Model


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CTI-1601 Delivers hFXN to Mitochondria in KO Mice hFXN concentration within mitochondria increases in a dose-dependent manner Given subcutaneously, CTI-1601 functionally replaces hFXN in mitochondria of KO mice Succinate dehydrogenase (SDH) activity, which is indicative of mitochondrial function, increases in a dose-dependent manner after administration of CTI-1601; activity plateaus at 30 mg/kg and is equivalent to activity in wild type animals Demonstrated normalization of gene expression in cardiac tissue MPK = mg/kg MPK = mg/kg Normalized Mitochondrial FXN (Heart) Normalized SDH Activity (Muscle)


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CTI-1601 Prevents Left Ventricle Dilation in KO Mice Left ventricular (LV) volume increases in systole in untreated mice by 8 weeks (after 4 weeks of dosing with vehicle), but remains similar to wildtype when treated with CTI-1601 (10 mg/kg every other day) CTI-1601-treated mice have similar LV volume as healthy controls; echocardiogram shows significant differences between vehicle and CTI-1601 treated (10 mg/kg every other day) KO mice Diameter (mm) Age in Weeks Age in Weeks Volume (μL) KO: CTI-1601 Wild-type: Vehicle KO: Vehicle Left Ventricle Internal Diameter (Systole) Left Ventricle Volume (Systole)


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CTI-1601 Preserves Left Ventricle Function in KO Mice Left ventricular (LV) function drops significantly in vehicle treated mice by week 8 CTI-1601-treated (10 mg/kg every other day) mice have similar LV as healthy controls; echocardiogram shows significant differences between vehicle and CTI-1601 treated KO mice Percent Change Age in Weeks KO: CTI-1601 Wild-type: Vehicle KO: Vehicle Left Ventricle Ejection Function Left Ventricle Fractional Shortening Percent Change Age in Weeks


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Favorable PK/PD Profile in Healthy Cynomolgus Monkeys CTI-1601 is bioavailable when given subcutaneously Sustained levels of hFXN are found in blood cells (platelets) and peripheral tissues (buccal cells, skin) as early as the 7th day and still present after 14 days Sustained levels of hFXN are found after 14 days in the cerebrospinal fluid of monkeys, suggesting CNS penetration Study Design (14-Days of CTI-1601 dosing) 6 healthy cynomolgus monkeys (3M / 3F) Pre-dosed for 2 days with Vehicle Pre-dose collection of platelets, cerebrospinal fluid, buccal swab, skin punch Dosing starts 15 mg/kg SC BID Day 10 (7 days dosing) Collection of platelets, buccal swab, skin punch Day 16 (following 14th day of dosing) Collection of cerebrospinal fluid, platelets, buccal swab, skin punch


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Biodistribution in Healthy Cynomolgus Monkeys Treatment of monkeys with CTI-1601 results in sustained levels of hFXN in peripheral tissues that are accessible in the clinic FXN levels increase ~4X or more following CTI-1601 administration For comparison, FA patients show FXN levels that range from ~20-40% of normal FXN levels depending on the tissue considered1 Heterozygous carriers show no phenotype and display levels of FXN representing ~2-3X higher than most FA patients1 Buccal Swabs Skin Biopsies Platelets CTI-1601 Human FXN Human + Monkey FXN (Pre-treatment) (Pre-treatment) (Pre-treatment) 1. E.C. Deutsch et al. Molecular Genetics and Metabolism 101 (2010) 238–245 Sustained levels of human FXN (hFXN) in peripheral tissues after 14 days of CTI-1601 dosing