Assyro AI
US FDAUnited StatesALApproval Letter

Approval Letter Other 206968 (Jan 1, 2023)

Issued January 1, 2023

Issued

January 1, 2023

Application

Other • 206968

Review center

Other

Stage

Final Decision

Letter type

Approval Letter

Response due June 30, 2023Product may be marketed.

Summary

This document is a Complete Response letter from the FDA to InnoPharma Licensing LLC regarding their New Drug Application (NDA) 206968 for Acetaminophen Injection, 10 mg/mL. The FDA has determined that the application cannot be approved in its present form due to several deficiencies in nonclinical data, prescribing information, carton and container labeling, and the need for a safety update.

Key points

  • Submit a revised toxicological risk assessment based on validated leachable data that characterizes trends in leachables over the proposed shelf-life, including later timepoints.
  • Submit a risk assessment for any compound present over 5 mcg/day, considering the maximum daily dose.
  • Provide a full leachable profile with data collected on a fresh batch of drug product at 0, 3, 6, 9, and 12-month time points using well-validated methods.
  • Provide complete data for at least three batches of drug product stored under accelerated conditions.
  • Provide Table 2 from the Photostability study report ARL/STDR/0066/19 in the resubmission.
  • Review labeling review resources on PLR requirements for Prescribing Information and Pregnancy and Lactation Labeling Final Rule websites.
  • If labeling is revised, use the SRPI checklist to ensure conformity with format items in regulations and guidances.
  • Include updated content of labeling in structured product labeling (SPL) format in the response.

Cited reasons

  • Inadequate validated leachable data for container closure system
  • Missing complete accelerated stability data for drug product batches
  • Photostability study report incomplete (missing table)
  • Prescribing Information not adequate
  • Strength presentation on labeling is error-prone
  • Expiration date and lot number format/location not specified on container label
  • Expiration date format not specified on overwrap label
  • Net quantity statement competes for prominence with product strength on overwrap label

Recommended actions

  • Submit a revised toxicological risk assessment based on validated leachable data that characterizes trends in leachables over the proposed shelf-life, including later timepoints.
  • Submit a risk assessment for any compound present over 5 mcg/day, considering the maximum daily dose.
  • Provide a full leachable profile with data collected on a fresh batch of drug product at 0, 3, 6, 9, and 12-month time points using well-validated methods.
  • Provide complete data for at least three batches of drug product stored under accelerated conditions.
  • Provide Table 2 from the Photostability study report ARL/STDR/0066/19 in the resubmission.
  • Review labeling review resources on PLR requirements for Prescribing Information and Pregnancy and Lactation Labeling Final Rule websites.
  • If labeling is revised, use the SRPI checklist to ensure conformity with format items in regulations and guidances.
  • Include updated content of labeling in structured product labeling (SPL) format in the response.

Deficiency summary

The application cannot be approved in its current form due to significant data gaps in validated leachable data for the container closure system, missing accelerated stability data, and numerous deficiencies in prescribing information, carton, and container labeling. Labeling issues include incorrect strength presentation, unspecified expiration date formats, prominence of net quantity, missing temperature units, incomplete product strength, missing route of administration, misleading quantity statements, absence of 'Rx Only' statement, and unclear serial number inclusion for DSCSA compliance. A safety update is also required upon resubmission.

Findings

Inadequate validated leachable data for container closure system

Severity: major

You have not provided adequate validated leachable data to permit a substantive toxicological risk assessment for the proposed container closure system. This includes characterizing trends over shelf-life and assessing compounds over 5 mcg/day. A full leachable profile with data collected on a fresh batch of drug product at multiple time points using well-validated methods is needed.

Recommended response: Submit a revised toxicological risk assessment based on validated leachable data that characterizes the trends in leachables over the course of the proposed shelf-life, including later timepoints. Submit a risk assessment for any compound present over 5 mcg/day. Provide a full leachable profile with data collected on a fresh batch of drug product, at 0, 3, 6, 9, and 12-month time points using well-validated methods.

Missing complete accelerated stability data for drug product batches

Severity: major

Module P.8.3. states that 6 month accelerated studies under 40° ± 2°C/ NMT 25% RH were provided for 2019 batch stability samples 1907059, 1907060, and 1907061. However, this information cannot be located.

Recommended response: Provide the complete data for at least three batches of drug product stored under accelerated conditions.

Photostability study report incomplete (missing table)

Severity: minor

Table 2 in the Photostability study report ARL/STDR/0066/19 was not included in the report.

Recommended response: Provide this information in your resubmission.

Prescribing Information not adequate

Severity: major

Comment on the proposed labeling is reserved until the application is otherwise adequate. The sponsor is encouraged to review PLR requirements, Pregnancy and Lactation Labeling Final Rule, and SRPI checklist.

Recommended response: If you revise labeling, use the SRPI checklist to ensure that the Prescribing Information conforms with format items in regulations and guidances. Your response must include updated content of labeling in structured product labeling (SPL) format.

Cited: 21 CFR 314.50(l)(1)(i)

Strength presentation on labeling is error-prone

Severity: major

The strength (1,000 mg) is presented as “1000 mg” (without a comma), which may be misinterpreted as hundreds “100”.

Recommended response: Present numbers greater than or equal to 1,000 with a comma.

Expiration date and lot number format/location not specified on container label

Severity: major

The location and format of the expiration date and lot number is not specified, which can lead to confusion, medication errors, and dispensing errors.

Recommended response: Designate an area for inclusion of the expiration date and lot number on the container label. Ensure the expiration date is clearly differentiated and identify the format (e.g., YYYY-MM-DD or YYYY-MMM-DD).

Cited: 21 CFR 201.17

Expiration date format not specified on overwrap label

Severity: minor

The format of the expiration date on the overwrap label is not specified, which can lead to confusion and risk for deteriorated drug medication errors.

Recommended response: Identify the expiration date format you intend to use. FDA recommends YYYY-MM-DD or YYYY-MMM-DD.

Net quantity statement competes for prominence with product strength on overwrap label

Severity: major

The net quantity (100 mL) statement competes for prominence with the product strength and could be misinterpreted as a strength statement (100 mg).

Recommended response: Reduce the prominence of the net quantity statement.

Missing temperature units on carton labeling

Severity: minor

The units of temperature measurement (Centigrade and Fahrenheit symbols) are missing after the first numbers in the temperature ranges (e.g., '20' and '68'), potentially leading to overlooked lower temperatures.

Recommended response: Add the Centigrade symbol (C) following the 20 and the Fahrenheit symbol (F) following the 68 within the storage statement (e.g., '20°C to 25°C (68°F to 77°F)').

Product strength (1,000 mg per 100 mL) missing on carton labeling

Severity: major

The product strength (1,000 mg per 100 mL) is not included on the carton labeling; only the quantity per milliliter ('10 mg/mL') is present. This is required by regulation.

Recommended response: Add the proposed product strength, '1,000 mg per 100 mL' to the carton labeling (e.g., '1,000 mg per 100 mL (10 mg/mL)').

Cited: 21 CFR 201.57(c)(17)(i)

Route of administration missing on carton labeling

Severity: major

The route of administration is missing from the carton labeling, posing a risk of product administration errors.

Recommended response: Add the route of administration statement without abbreviations to the carton labeling, consistent with the container label (e.g., 'For Intravenous Use Only').

Cited: 21 CFR 201.100(b)(3)

Misleading quantity statement on carton labeling

Severity: minor

A quantity statement, (b)(4), may be interpreted as one infusion bag per carton, which is misleading and incorrect.

Recommended response: Delete the misleading quantity statement, (b)(4).

Regulatory context

Submission stage
final decision
Regulatory pathway
505(b)(2) NDA

Impact

Impact score
0.75
Estimated delay
270 days
Estimated rework cost
$0
Subsequent action
resubmission

Strategic insights

The application faces a complete response due to critical data deficiencies in container closure system leachables and stability, coupled with extensive non-compliance in prescribing information and carton/container labeling, indicating a need for substantial data generation and comprehensive labeling revisions to meet regulatory standards.

Regulatory change impact: Pending sponsor mitigation plan

Approval likelihood after response: 25%

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