Registration Dossier

Administrative data

Description of key information

Skin irritation

CJ302 is not classified as skin irriatant (OECD TG404).

 

Eye irritation

CJ 302 was not judged as a positive irritant to the eye (OECD TG405).

Key value for chemical safety assessment

Skin irritation / corrosion

Link to relevant study records
Reference
Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From Decenber 29, 2015 to February 18, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
yes
Species:
rabbit
Strain:
New Zealand White
Details on test animals and environmental conditions:
- Source: Kitayama Labes Co., Ltd. (Japan)
- Age at study initiation: approximately 5 to 6 months
- Weight at study initiation: 2891 to 3910 g
- Housing: individually in a stainless steel wire mesh cage
- Water: ad libitum
- Acclimation period: at least 5 days
- Temperature (°C): 21 ± 2 °C
- Humidity (%): 50 ± 20%
- Photoperiod: 12hrs dark / 12hrs light
Preparation of test site:
shaved
Vehicle:
water
Remarks:
Water for injection (WFI)
Controls:
yes, concurrent vehicle
Amount / concentration applied:
- Amount(s) applied (volume or weight with unit): 0.5 g test article was moistened with 0.3 mL water for injection
Duration of treatment / exposure:
4-4.5 hours
Observation period:
1, 24, 48, 72 hours
Number of animals:
three
Details on study design:
- Area of exposure: left dorsal area
- Washing (if done): with lukewarm water
Irritation parameter:
primary dermal irritation index (PDII)
Score:
0.22
Reversibility:
fully reversible within: 72 hours
Remarks on result:
probability of mild irritation

Table 1. Individual Body Weights and Clinical Observations

Animal ID

Body weight (g)

Body weight change (g)

Clinical observation

D1

D4

D4-D1

1

2891

2931

40

Normal

2

3910

3929

19

Normal

3

3031

3049

18

Normal

Table 2. Individual Scores and Total Scores for Skin Irritation During 72 hours

Animal ID

1

2

3

Score on each observation point (hour)

1

24

48

72

1

24

48

72

1

24

48

72

Control site

Erythema

0

0

0

0

0

0

0

0

0

0

0

0

Edema

0

0

0

0

0

0

0

0

0

0

0

0

Total irritation score for vehicle*

0

0

0

Test site

Erythema

1

1

1

0

0

0

0

0

0

0

0

0

Edema

0

0

0

0

0

0

0

0

0

0

0

0

Total irritation score for vehicle*

2

0

0

PII**

0.22

* The sum of scores at 24, 48 and 72 hours.

** (Total irritation score for test article-Total irritation score for vehicle)/9

Interpretation of results:
GHS criteria not met
Conclusions:
According to OECD 404 test method and Draize Dermal Classification System, the result does not meet the CLP criteria. Therefore, CJ302 is not classified.
Executive summary:

This test using the procedures outlined in the QPS Taiwan Study Plan for T65315014-IR which is based on the SOP for the OECD 404 (CTPS-TE00440) and OECD 404 (OECD, 2015). The sites were grades for erythema and edema at 1, 24, 48 and 72 hours after the patches removal. No clinical signs of toxicity were found. Body weight changes were within the normal range in all animals. Erythema with score 1 was observed in one animal during 48 hours after patch removal. The Primary Irritation Index for CJ302 was calculated to be 0.22. On the basis of the test results given above and according to Draize Dermal Classification System, the response of CJ302 was not classified.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Eye irritation

Link to relevant study records
Reference
Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From April 15, 2016 to June 1, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
yes
Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
- Source: the animal health research institute, council of agriculture, executive yuan
- Age at study initiation: 4-5 months
- Weight at study initiation: 3274-3503 g
- Housing: individually in a stainless steel wire mesh cage
- Water: ad libitum
- Acclimation period: at least 5 days
- Temperature (°C): 21 ± 2 °C
- Humidity (%): 50 ± 20%
- Photoperiod: 12-hrs dark / 12-hrs light
Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
- Amount(s) applied (volume or weight with unit): 100 mg
Duration of treatment / exposure:
1 hour
Observation period (in vivo):
1, 24, 48 and 72 hours
Number of animals or in vitro replicates:
three
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
0
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
0
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
0
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
mean
Time point:
24/48/72 h
Score:
0.3
Max. score:
1
Reversibility:
fully reversible within: 48hr
Remarks on result:
probability of weak irritation

Table 1. Individual Body Weights and Clinical Observations

Animal ID

Body weight (g)

Body weight change (g)

Clinical observation

D1

D4

D4-D1

1

3491

3511

20

Normal

2

3274

3397

123

Normal

3

3503

3552

49

Normal

Table 2. Eye Irritation Scores at Observation Point (hours) on Treated Eye

Animal ID

1

2

3

Score on each observation point (hour)

1

24

48

72

1

24

48

72

1

24

48

72

Cornea

Degree of density

0

0

0

0

0

0

0

0

0

0

0

0

Iris

0

0

0

0

0

0

0

0

0

0

0

0

Conjunctiva

Redness

1

0

0

0

1

0

0

0

1

0

0

0

Chemosis

1

1

0

0

0

1

0

0

1

0

0

0

Interpretation of results:
GHS criteria not met
Conclusions:
According to OECD 405 test method, CJ302 showed that no positive irritant to the eye. Therefore, CJ302 was not met GHS criteria.
Executive summary:

This test using the procedures outlined in the QPS Taiwan Study Plan for T65315008-IR which is based on the SOP for the OECD 405 (CTPS-TE00441) and OECD 405 (OECD, 2012). There were no test article effects on mortality, clinical observations and body weight. Reversible redness of conjunctivae and chemosis with score of 1 were observed within 24 hours after test article application.CJ302 was given by a single ocular application at 100 mg amount to NZW male rabbits and followed by ocular examination within 72 hours and a 4 days clinical observation period. Conjunctiva redness and chemosis with score 1 were determined within 24 hours and fully recovered. On the basis of the test results given above, the response of the test article was not judged as a positive irritant to the eye.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Respiratory irritation

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

Skin irritation

The sites were grades for erythema and edema at 1, 24, 48 and 72 hours after the patches removal.No clinical signs of toxicity were found. Body weight changes were within the normal range in all animals. The Primary Irritation Index for CJ302 was calculated to be 0.22. On the basis of the test results given above and according to Draize Dermal Classification System, the result does not meet the CLP criteria. Therefore, CJ302 is not classified.

 

Eye irritation

There were no test article effects on mortality, clinical observations and body weight. Reversible redness of conjunctivae and chemosis with score of 1 were observed within 24 hours after test article application.CJ302 was given by a single ocular application at 100 mg amount toNZW male rabbits and followed by ocular examination within 72 hours and a 4 days clinical observation period. Conjunctiva redness and chemosis with score 1 were determined within 24 hours and fully recovered. On the basis of the test results given above, the response of the test article was not judged as a positive irritant to the eye.

Justification for classification or non-classification