Tuberculosis (TB) specimen bank
Aliquots from both FIND and WHO/TDR collections are now available upon request through FIND for commercial and academic researchers working towards the development of TB diagnostics.
What types of samples are available?
Sputum - 0.5 ml aliquots
Serum - 0.5 ml aliquots
Plasma (EDTA) - 0.5 ml aliquots
Plasma (P800) - 0.5 ml aliquots
Saliva - 0.5 ml aliquots
Urine - 1.5ml or 3.5ml aliquots
How are samples collected and stored?
Specimens are collected from adult individuals presenting to participating clinics with symptoms of pulmonary tuberculosis. All samples are collected before the subject starts any form of TB treatment. Basic processing information for each sample type is outlined below:
|Serum and plasma||Centrifugation|
|Sputum||Homogenization with H2O or NALC/NA Citrate and glass beads|
All samples are aliquoted in pre-labelled cryotubes and frozen on site before being shipped to one of the central repositories.
Who can request specimens?
Samples are available by application to commercial and academic researchers working towards the development of TB diagnostics suitable for low and middle-income settings.
Requests should be made using the Material Request Form (MRF) and should be emailed to firstname.lastname@example.org.
How will the request be evaluated?
The first priority for this project is to assist in the development or evaluation of existing or emerging diagnostic tools that are considered promising for improving the diagnosis of TB in low and middle-income countries. A Specimen Bank Review Committee (SBRC), composed of five qualified members involved in diagnostics development and TB control, will review and approve or reject applications from requesting parties. Requests which address the following criteria will be given the highest priority:
- Relevance to public health (feasibility and impact on patients and disease control programmes)
- Applicability of the technology in high burden countries
- Low cost of final product
- Previous data or scientific evidence supporting the request
What is expected of the applicants?
All applicants are required to sign a Material Transfer Agreement (MTA) that will be annexed to the Material Request Form (MRF) and to then forward an electronic copy to FIND. Shipment of samples is dependent on a valid, fully executed MTA.
How many samples can be requested?
The suitability of the request will be evaluated by the SBRC. Sample numbers should be requested based on real needs to achieve the objectives described in the MRF. In the following cases, a more detailed workplan and supporting proof-of-principle data might be required by the SBRC on a case by case basis:
- large sample requests;
- significantly scarce diagnostic groups or sample types;
- repeated requests for the same project.
Criteria for sample selection
After approving the request, the following criteria will be considered for sample selection:
- Whenever possible, all samples in a request will be shipped from one repository in order to minimize logistics, shipping costs and time
- Samples will be shipped from the closest repository
- To take the best advantage of all collections, samples will be selected on a first-in first-out basis, unless a case is made by the requestor to use the most recently collected samples
Applicants are to cover handling fees and shipping costs, unless otherwise agreed with FIND. Handling fee is US$ 20 per aliquot. Indicative shipment costs for 100 aliquots is US$ 2000.
Where are the samples stored?
Samples are currently stored in deep freezers at -80°C at three central repositories located in Thailand, France and the US. Please note that import permits are required by most countries to receive shipments of frozen samples.
How long does it take?
|MRF review by SBRC committee||up to 2 weeks from submission*|
|Export permit application||up to 4 weeks*|
|Sample preparation||up to 4 days*, depending on shipment size|
|Transit time||up to 5 days*, depending on distance and customs regulations in receiving country|
*Please note that the timelines are indicative and may change due to circumstances.
Transparency of use
A report summarizing the number of requests received, approved or rejected and the number and type of aliquots distributed will be made available on this website on an annual basis.
For additional information, please contact email@example.com