Drug factory · FDA FEI 1626310
Iso-Tex Diagnostics, Inc.
1511 County Road 129, Alvin, TX, United States
Serious problems, FDA action at FDA's last inspection, Feb 3, 2026.
Official Action Indicated: inspectors found significant problems and FDA recommended regulatory action, such as a warning letter or import alert.
13 drug inspections on record since 2008: 5 with no problems, 3 with problems fixed voluntarily, 5 with FDA action.
What it does, for whom
| Drug | Role | For | NDC |
|---|---|---|---|
| Human Serum Albumin I-131 | Makes it | Iso-Tex Diagnostics, Inc. | 50914-7720, 50914-7731 |
| Iothalamic Acid I-125 | Makes it | Iso-Tex Diagnostics, Inc. | 50914-7729 |
FDA inspection history
| Ended | Result | Program | Problems noted |
|---|---|---|---|
| Feb 3, 2026 | Serious problems, FDA action | Drug Quality Assurance | 5 |
| Feb 10, 2023 | Serious problems, FDA action | Drug Quality Assurance | 7 |
| Feb 7, 2020 | No problems found | Drug Quality Assurance | — |
| Aug 29, 2018 | No problems found | Bioresearch Monitoring | — |
| Jan 31, 2018 | Problems found, fixed voluntarily | Drug Quality Assurance | 1 |
| Jul 10, 2015 | Serious problems, FDA action | Unapproved and Misbranded Drugs | 20 |
| Jul 10, 2015 | Serious problems, FDA action | Drug Quality Assurance | 20 |
| Aug 27, 2014 | No problems found | Bioresearch Monitoring | — |
| Sep 27, 2013 | No problems found | Drug Quality Assurance | — |
| Sep 7, 2012 | Problems found, fixed voluntarily | Bioresearch Monitoring | 1 |
| Sep 12, 2011 | Problems found, fixed voluntarily | Drug Quality Assurance | 3 |
| Jun 2, 2010 | Serious problems, FDA action | Drug Quality Assurance | 9 |
| Dec 10, 2008 | No problems found | Drug Quality Assurance | — |
What inspectors wrote down
From FDA's Form 483 citations: conditions an investigator observed that may violate drug manufacturing rules, as FDA published them.
Feb 3, 2026 inspection
- Procedures for sterile drug products 21 CFR 211.113(b)
Procedures designed to prevent microbiological contamination of drug products purporting to be sterile are not followed. - Calibration - at intervals, written program, remedial action 21 CFR 211.160(b)(4)
The calibration of instruments and recording devices is not done at suitable intervals in accordance with an established written program. - Procedures not in writing, fully followed 21 CFR 211.22(d)
The responsibilities and procedures applicable to the quality control unit are not fully followed. - Buildings not maintained in good state of repair 21 CFR 211.58
Buildings used in the manufacturing, processing, packing and holding of a drug product are not maintained in a good state of repair. - Calibration/Inspection/Checking not done 21 CFR 211.68(a)
Routine inspection and checking of automatic and mechanical equipment is not performed according to a written program designed to assure proper performance.
Feb 10, 2023 inspection
- Procedures for sterile drug products 21 CFR 211.113(b)
Procedures designed to prevent microbiological contamination of drug products purporting to be sterile are not followed. - Establishment of calibration procedures 21 CFR 211.160(b)(4)
Procedures describing the calibration of instruments, apparatus, gauges and recording devices are not written or followed and deficiently written or followed. - Buildings of Suitable Size, Construction, Location 21 CFR 211.42(a)
Buildings used in the manufacture, processing, packing, or holding of a drug product do not have the suitable construction to facilitate cleaning, maintenance, and proper operations. - Environmental Monitoring System 21 CFR 211.42(c)(10)(iv)
Aseptic processing areas are deficient regarding the system for monitoring environmental conditions. - Cleaning System 21 CFR 211.42(c)(10)(v)
Aseptic processing areas are deficient regarding the system for cleaning and disinfecting the room to produce aseptic conditions. - Washing and toilet facilities are deficient 21 CFR 211.52
Washing and toilet facilities lack air driers or single-service towels and cleanliness. - Cleaning / Sanitizing / Maintenance 21 CFR 211.67(a)
Equipment and utensils are not cleaned and sanitized at appropriate intervals to prevent contamination that would alter the safety, identity, strength, quality or purity of the drug product.
Jan 31, 2018 inspection
- Equipment to control conditions 21 CFR 211.42(c)(10)(vi)
Aseptic processing areas are deficient regarding systems for maintaining any equipment used to control the aseptic conditions.
Jul 10, 2015 inspection
- SOPs not followed / documented 21 CFR 211.100(b)
Written production and process control procedures are not followed in the execution of production and process control functions and documented at the time of performance. - SOPs not followed / documented 21 CFR 211.100(b)
Written production and process control procedures are not followed in the execution of production and process control functions and documented at the time of performance. - Distinctive ID or code not recorded in batch record 21 CFR 211.105(b)
The batch records do not record the distinctive identification number and code to identify major equipment to show the specific equipment used in the manufacture of a batch of a drug product. - Distinctive ID or code not recorded in batch record 21 CFR 211.105(b)
The batch records do not record the distinctive identification number and code to identify major equipment to show the specific equipment used in the manufacture of a batch of a drug product. - Validation lacking for sterile drug products 21 CFR 211.113(b)
Procedures designed to prevent microbiological contamination of drug products purporting to be sterile do not include adequate validation of the sterilization process. - Validation lacking for sterile drug products 21 CFR 211.113(b)
Procedures designed to prevent microbiological contamination of drug products purporting to be sterile do not include adequate validation of the sterilization process. - Written records kept in individual logs 21 CFR 211.182
Written records of major equipment cleaning, maintenance, and use are not included in individual equipment logs. - Written records kept in individual logs 21 CFR 211.182
Written records of major equipment cleaning, maintenance, and use are not included in individual equipment logs. - Investigations of discrepancies, failures 21 CFR 211.192
There is a failure to thoroughly review any unexplained discrepancy whether or not the batch has been already distributed. - Investigations of discrepancies, failures 21 CFR 211.192
There is a failure to thoroughly review any unexplained discrepancy whether or not the batch has been already distributed. - Procedures not in writing, fully followed 21 CFR 211.22(d)
The responsibilities and procedures applicable to the quality control unit are not fully followed. - Procedures not in writing, fully followed 21 CFR 211.22(d)
The responsibilities and procedures applicable to the quality control unit are not fully followed. - Environmental Monitoring System 21 CFR 211.42(c)(10)(iv)
Aseptic processing areas are deficient regarding the system for monitoring environmental conditions. - Environmental Monitoring System 21 CFR 211.42(c)(10)(iv)
Aseptic processing areas are deficient regarding the system for monitoring environmental conditions. - Written sanitation procedures lacking 21 CFR 211.56(b)
There is a lack of written procedures assigning responsibility, providing cleaning schedules, and describing in sufficient detail the methods, equipment and materials to be used for sanitation. - Written sanitation procedures lacking 21 CFR 211.56(b)
There is a lack of written procedures assigning responsibility, providing cleaning schedules, and describing in sufficient detail the methods, equipment and materials to be used for sanitation. - Calibration/Inspection/Checking not done 21 CFR 211.68(a)
Routine calibration, inspection, and checking of automatic, mechanical, and electronic equipment is not performed according to a written program designed to assure proper performance. - Calibration/Inspection/Checking not done 21 CFR 211.68(a)
Routine calibration, inspection, and checking of automatic, mechanical, and electronic equipment is not performed according to a written program designed to assure proper performance. - Handling and Storage to Prevent Contamination 21 CFR 211.80(b)
There was a failure to handle and store components at all times in a manner to prevent contamination. - Handling and Storage to Prevent Contamination 21 CFR 211.80(b)
There was a failure to handle and store components at all times in a manner to prevent contamination.
Registered with FDA for: analysis; manufacture.