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---
title: Theranos Has Junked Two Years of Blood Test Results
description: Troubled biotech firm Theranos Inc. has reportedly told regulators two years of results from its blood-testing machines are invalid
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author: Simon Lewis
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article:modified_time: 2026-02-22T17:39:38.427Z
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og:title: Biotech Firm Theranos Junks Two Years of Blood Test Results
og:description: Tens of thousands of patients could have been given incorrect test results
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# Theranos Has Junked Two Years of Blood Test Results

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by 

[Simon Lewis](https://time.com/author/simon-lewis/)


## Simon Lewis


May 19, 2016 4:24 AM UTC

![480811105](https://static.time.com/v3/assets/bltea6093859af6183b/bltdca358e0cd5ceee3/698893e03c16392f5045d52c/gettyimages-480811105.jpg?branch=production&width=1200&quality=75&auto=webp&crop=3:2)

Blood sample taken for analysis with needle

Blood sample taken for analysis with needle Getty Images

by 

[Simon Lewis](https://time.com/author/simon-lewis/)


## Simon Lewis


May 19, 2016 4:24 AM UTC

Troubled biotech firm Theranos Inc. has reportedly [told regulators](http://www.wsj.com/articles/theranos-voids-two-years-of-edison-blood-test-results-1463616976) that two years of results from its blood-testing machines have been voided, meaning that tens of thousands of patients could have been given incorrect results.

The company and its founder Elizabeth Holmes were once the darlings of investors, earning a valuation of $9 billion in 2014 on the back of claims that new technology in their Edison brand machines would revolutionize medical testing. But federal regulators have found [major problems](http://time.com/4299943/the-theranos-downfall-was-inevitable/) at Theranos’ California laboratory, and are [considering](http://time.com/4292785/theranos-elizabeth-holmes-lab-ban/) banning Holmes from being involved in lab tests for two years.

The _Wall Street Journal_, which first raised questions over the accuracy of testing by the company last year, reports that Theranos has told health care regulator the Centers for Medicare and Medicaid Services that all Edison test results from 2014 and 2015 have been thrown out.

The company is issuing corrected results of tests conducted up to two years ago to doctors and patients, who may have already based clinical decisions on the initial tests, the _Journal_ said, citing a person familiar with the matter and several doctors around the U.S.

The company, which handles almost 900,000 tests a year, [announced](https://www.theranos.com/news) in late March that it had undertaken a comprehensive review and “voided results associated with any findings that were not consistent with the quality standards the lab holds itself to today, under our lab’s new leadership.”

\[[_WSJ_](http://www.wsj.com/articles/theranos-voids-two-years-of-edison-blood-test-results-1463616976)\]

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