A intelligence wellness portion criticised implicit the deaths of 3 teenagers was "chaotic and unsafe", a study found.
An autarkic enquiry recovered "excessive and inappropriate" restraint was utilized astatine Middlesbrough's West Lane Hospital.
The situation "facilitated self-harm", said patients, and unit were told not to intervene unless it was apt to beryllium fatal.
Tees, Esk and Wear Valley NHS Foundation Trust (TEWV) apologised and said important changes had been made.
The study followed the deaths of Christie Harnett, Nadia Sharif, some 17, and Emily Moore, 18, who took their ain lives successful an eight-month play up to February 2020 nether the trust's care.
West Lane, which closed pursuing the deaths, provided specializer kid and teen intelligence wellness services, including attraction for eating disorders.
Tuesday's study was commissioned by NHS England and undertaken by Niche Health and Social Care Consulting. It recovered "clear synergies" betwixt attraction failings delivered to each three.
It is the latest successful a bid of reports which identified failings.
The report's authors spoke to erstwhile patients, their parents and unit arsenic good arsenic the families of the 3 teenagers who died.
It recovered a "consistent nonaccomplishment to enactment the young radical astatine the bosom of care".
Young radical interviewed said the attraction situation "facilitated self-harm" and they did not consciousness assured that they were safe.
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'Called a maniac'
A cardinal taxable of powerlessness was identified from diligent interviews, the study said.
Patients spoke of being treated with a deficiency of dignity, with 1 saying unit made them consciousness "that I'm conscionable a discarded of a bed".
Another spoke of being restrained by antheral unit "when I was wholly naked".
Some verbal interactions were described arsenic judgemental, and astatine times abusive.
"I was called a maniac, a anserine small miss - tons of comments similar that. I was told, if you truly wanted to termination yourself, you would beryllium dormant by now", said 1 erstwhile patient.
Every genitor spoken to arsenic portion of the probe was unhappy with the attraction of their young person.
Many felt "undermined" with reports of failures to pass them of incidents involving their children and 1 described feeling "manipulated into not making much fuss astir things".
'Deeply sorry'
The usage of restraint astatine the infirmary was excessive, inappropriate, and yet damaging to patients, arsenic good arsenic staff.
Staff were struggling to header with the complexity and demands of the diligent cohort, the study found, and small enactment was fixed to unit to assistance successful de-escalating situations, which is apt to person contributed to an over-reliance connected restraint.
West Lane was often described arsenic a"closed culture" and successful presumption of firm governance determination was insufficient curiosity regarding the civilization there, the study said.
And determination was nary grounds that determination was a collaborative effort by the spot oregon its partners to guarantee that determination was a robust safeguarding model successful spot to support children and young people.
The study made 12 recommendations which included dealing with complaints, unit training, connection betwixt assorted attraction agencies and liaising with families aft the decease of a patient.
It recommended NHS England reviewed advancement wrong six months to a year.
TEWV president David Jennings said it was "deeply sorry" and they had met the families of the 3 young women and apologised.
"This study covers a play of clip wherever it was abundantly wide determination were shortfalls successful some attraction and leadership," helium said.
"Over the past 3 years, however we attraction for people, however we impact patients, families and carers, and our enactment and governance operation person changed significantly.
"We volition proceed to enactment hard to marque definite we present harmless and benignant attraction to the radical we support, arsenic they person each close to expect."
Margaret Kitching, the main caregiver for NHS England, North East and Yorkshire, said: "We proceed to intimately show the trust's advancement to guarantee each of the recommendations are afloat addressed."
Miss Harnett, from Newton Aycliffe, County Durham, took her ain beingness astatine West Lane Hospital successful June 2019 and Miss Sharif, from Middlesbrough, died determination 2 months later.
Miss Moore, besides from County Durham, took her ain beingness successful February 2020 astatine Lanchester Road Hospital. She had antecedently been treated astatine West Lane successful 2018 and 2019.
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