jondoeuk
7 months ago
They are opting out of an agreement with REGN to co-develop a factor IX gene editing therapy for haemophilia A and B. The agreement, which was signed in 2020, will terminate 180 days after NTLA provide written notice to REGN. They will continue to have obligations related to the co-development of gene-editing products directed to factor IX until the effective date of termination. Upon termination, NTLA will no longer be obligated for sharing 35% of the development costs, or be entitled to receive 35% of the profits, for gene-editing products directed to factor IX under the agreement.
Separately, the company would continue to support REGN with the development of gene-editing products directed to factor IX, as applicable, pursuant to a 2016 license and collaboration agreement between the companies. NTLA may be eligible to receive up to $320M in milestone payments and royalties in the high-single digits to low teens if REGN develops and commercialises gene-editing products under the terms of this license and collaboration deal.
Monksdream
1 year ago
That awful Cathie Wood bought more
Intellia Therapeutics Inc NASDAQ: NTLA
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Health Care : Biotechnology | Small Cap BlendCompany profile
Intellia Therapeutics, Inc. is a clinical-stage genome editing company, which is focused on developing curative therapeutics using Clustered, Regularly Interspaced Short Palindromic Repeats/CRISPR associated 9 (CRISPR/Cas9) technology. CRISPR/Cas9 is a technology for genome editing, the process of altering selected sequences of genomic deoxyribonucleic acid. It is focused on leveraging its modular platform to advance in vivo and ex vivo therapies for diseases with high unmet need. Its lead in vivo candidate, NTLA-2001, is for the treatment of transthyretin (ATTR) amyloidosis, as well as NTLA-2002 for the treatment of hereditary angioedema (HAE). It is developing ex vivo applications to address immuno-oncology and autoimmune diseases. Its advanced ex vivo programs include a wholly owned chimeric antigen receptor T (CAR-T) cell candidate, NTLA-6001 targeting CD30 for the treatment of CD30-expressing hematologic cancers, including relapsed or refractory classical Hodgkin's lymphoma.
jondoeuk
3 years ago
The company will present new data at the 29th Annual Congress of the European Society of Gene & Cell Therapy meeting, taking place virtually from October 19-21.
Oral Presentations:
Title: A Novel Strategy for Off-the-shelf T Cell Therapies Evading Host T Cell and NK Cell Rejection
Abstract number: OR18
Date/Time: Wednesday, October 20, 2021, 10:45 a.m. CEST
Location: Session 2c: Immunotherapy for cancer & CAR T cells
Presenting Author: Yong Zhang, Ph.D., associate director, Cell Therapy
Title: Consecutive Genome Editing in Non-Human Primate Achieves Durable Production of Human Alpha-1 Antitrypsin at Physiologic Levels and Reduction of the Homologous Native Protein
Abstract number: OR12
Date/Time: Wednesday, October 20, 2021, 10:15 a.m. CEST
Location: Session 2b: Gene editing I
Presenting Author: Sean Burns, M.D., vice president of Intelliaโs Disease Biology and Pharmacology group
Invited Talk:
Title: Advances in CRISPR/Cas9 Therapeutic Genome Editing for In Vivo and Ex Vivo Applications
Date/Time: Friday, October 22, 2021, 11:30 a.m. CEST
Location: Session 7b: Liver and metabolic diseases II
Presenting Author: Laura Sepp-Lorenzino. Ph.D., chief scientific officer
Poster Presentation:
Title: Lipid Nanoparticles (LNPs) as a Superior CRISPR/Cas9 Delivery Modality for Highly Efficient Multiplex Gene Editing of T Cells for Adoptive Cell Therapy
Abstract number: P205
Date/Time: Tuesday, October 19, 2021, 8:00 a.m. CEST
Presenting Author: Aaron Prodeus, Ph.D., principal scientist, Cell Therapy
jondoeuk
3 years ago
In the setting of established and (rapidly) proliferating disease, there is a need to enhance and sustain T-cell function, activity, and persistence. However, too many inhibitory and not enough costimulatory signals are a major hurdle. But one way to overcome this is with immunomodulatory fusion proteins, such as this https://ashpublications.org/blood/article/130/22/2410/36564/A-CD200R-CD28-fusion-protein-appropriates-an
So I hope the company explore it.
jondoeuk
3 years ago
This trial showed that donor-derived, CD8+ T-cells engineered (using a viral vector) to express a WT1 TCR could prevent relapse of patients at high risk (post HCT) [1].
Based on it, a PhI/II trial is ongoing testing central memory vs. naive CD8+ T-cells for the treatment of high-risk AML patients post-induction chemo (over 80% will relapse within the first year [2]). As of Dec '19, seven had been treated. Four are NED (one out to over 500 days), one relapsed (but declined further treatment), and two had overt disease (one due to WT1 negative leukaemia cells).
I think the product (5001) produced by NTLA should show even better results due to a number of factors.
Refs:
1 https://www.nature.com/articles/s41591-019-0472-9
2 https://ascopubs.org/doi/full/10.1200/JCO.2014.58.3518
jondoeuk
4 years ago
Currently, the company is using CRISPR/Cas9 screening to identify edits that can improve infiltration, expansion, potency, and persistence, while also prevent exhaustion of T-cells. Using T-cells with these properties should help in their development of more effective TCR-T cell therapies in a range of solid tumours. They identified both known and novel regulators, and importantly, a number of knock-out targets that accumulate in multiple, distinct TMEs and other targets that are specific.
Data from other groups have shown that deletion of a ribonuclease augmented the capacity of T-cells to control tumour growth by enhancing their ability to infiltrate and persist within the TME [1]. Similarly, a knockout of a transcription factor lead to the improvement in the cytolytic properties of T-cells [2].
They could go further and use TCRs that target both MHC Class-I and II antigens [3], along with delivering 'payloads' to modulate TMEs [4-9].
Refs:
1 https://www.nature.com/articles/s41586-019-1821-z
2 https://www.cell.com/cell/fulltext/S0092-8674(16)31149-7
3 https://www.jci.org/articles/view/120391
4 https://www.cell.com/cancer-cell/fulltext/S1535-6108(19)30101-1
5 https://www.nature.com/articles/s41590-020-0676-7
6 https://cancerimmunolres.aacrjournals.org/content/8/6/743
7 https://cancerimmunolres.aacrjournals.org/content/8/4/518
8 https://cancerres.aacrjournals.org/content/71/17/5697.long
9 https://www.jci.org/articles/view/58814
chmcnfunds
7 years ago
CRISPR hits a snag: Our immune systems may attack the treatment
By ANDREW JOSEPH @DrewQJoseph JANUARY 8, 2018
The CRISPR-Cas9 gene editing complex from Streptococcus pyogenes.
A new paper points to a previously unknown hurdle for scientists racing to develop therapies using the revolutionary genome-editing tool CRISPR-Cas9: the human immune system.
In a study posted Friday on the preprint site bioRxiv, researchers reported that many people have existing immune proteins and cells primed to target the Cas9 proteins included in CRISPR complexes. That means those patients might be immune to CRISPR-based therapies or vulnerable to dangerous side effects โ the latter being especially concerning as CRISPR treatments move closer to clinical trials.
But researchers not involved with the study said its findings, if substantiated, could be worked around. (Papers are posted to bioRxiv before being peer-reviewed.) Many of the first planned CRISPR clinical trials, for example, involve removing cells from patients, fixing their DNA, and then returning them to patients. In that case, itโs possible that there will be few or no CRISPR proteins remaining for the immune system to detect.
They also noted that scientists are already studying other types of CRISPR that use different proteins, which could stave off the immune responses.
โAt the end of the day, Iโm not that concerned about it,โ said Daniel Anderson of the Massachusetts Institute of Technology, who has studied the delivery of CRISPR therapies and who was not involved with the new study. โBut we want to do some experiments to learn more.โ
Related Story: Using CRISPR, scientists efficiently edit genome of viable human embryos
The new study should not put the brakes on developing CRISPR therapies, agreed Dr. Matthew Porteus of Stanford, a senior author of the paper and who is himself at work on a CRISPR-based therapy for sickle cell disease. But he said he and his colleagues investigated the immune issues because he felt they were being overlooked as the excitement around CRISPR grew.
โLike any new technology, you want to identify potential problems and engineer solutions for them,โ Porteus said. โAnd I think thatโs where weโre at. This is an issue that should be addressed.โ
(Porteus and Anderson are both scientific founders of CRISPR Therapeutics, one of the most prominent companies exploring CRISPR-based therapies.)
Immune survey
CRISPR has gained fame in recent years as researchers have deployed it to correct an array of disease-causing mutations in cells in the lab and in animal models, with hopes that the same results can be achieved in people. There are different types of CRISPR systems, but the most well known is dubbed CRISPR-Cas9; it includes Cas9 proteins that cut DNA so that it can be edited. Cas9 proteins come from bacteria.
For the study, the researchers decided to check for immune signals against two of the most common types of Cas9 proteins used, those from the bacteria S. aureus (called SaCas9) and those from S. pyogenes (called SpCas9). In their samples of blood from 22 newborns and 12 adults, the scientists found that 79 percent of donors had immune proteins, called antibodies, against SaCas9, and 65 percent had antibodies against SpCas9.
The researchers then searched for immune cells called T cells. They discovered that about half of the donors had T cells that specifically targeted SaCas9, so that if the immune cells detected that protein on the surface of a cell, they would rally a response to try to destroy it. The researchers did not find anti-SpCas9 T cells, though they said the cells might still have been present.
Itโs not surprising so many of the donors had antibodies and T cells against the Cas9 proteins, experts said. That simply means that those people had been exposed to the bacteria containing the proteins in the past, and other studies have found that, at any given time, 40 percent of people are โcolonizedโ by S. aureus and 20 percent of schoolchildren have S. pyogenes. The bacteria only sometimes cause disease.
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https://www.statnews.com/2018/01/08/immunity-crispr-cas9/
NTLA